Visual feedback system for electronic device

Information

  • Patent Grant
  • 6457992
  • Patent Number
    6,457,992
  • Date Filed
    Friday, April 27, 2001
    23 years ago
  • Date Issued
    Tuesday, October 1, 2002
    21 years ago
Abstract
A visual feedback system for providing information to a user regarding aspects such as the status and operation of the systems and components of one or more electronic devices. The visual feedback system is preferably employed in the context of a PC card and includes one or more light sources, preferably light emitting diodes, configured for electrical communication with the electronic circuitry by which the functionality of the PC card is implemented so that certain events that occur with respect to the status and operation of the PC card cause the light source to emit light. The emitted light is received by a light reflecting member that, preferably, substantially encloses the light source and reflects the received light in a manner and form consistent with a desired application. The reflected light is then directed, by virtue of the geometry of the light reflecting member, to one or more predetermined locations, one of which is preferably proximate to the receptacle of a connector included in the PC card. Thus, light emitted by the light source is correlated with operations performed by, and/or in conjunction with the PC card, and is then directed to a location visible to a user thereby enabling the user to ascertain information regarding aspects such as the status and operation of various electronic systems and components of, or relating to, PC card (100).
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention generally relates to directing light within an electronic device and, in particular, to a visual feedback system for electronic devices. More particularly, the present invention relates to illuminating all or a portion of a connector to provide visual feedback to a user.




2. Description of Related Art




Various electronic devices, such as computers, personal information managers and personal data assistants, are often configured to include one or more different types of electrical connectors. One conventional type of electrical connector that is frequently used with electronic devices is an RJ-type connector. As known to those skilled in the art, RJ-type connectors are typically used in connection with telephone network and computer communication systems, and these connectors may serve a variety of different purposes. For example, RJ-type connectors, which include a connector plug that is removably received with a receptacle, allow electrical communication to be established between an electrical device and a local or global computer network. This allows data and other information to be transferred between the electronic device and the computer network. Additionally, RJ-type connectors are commonly used to electrically connect telephones and the like to computer networks. Further, RJ-type connectors may be used to transmit electrical power from one device to another.




While conventional RJ-type connectors provide a number of useful features and capabilities, these connectors also suffer from shortcomings that compromise the overall usefulness of the connector. For example, the electrical connection between the RJ-type connector plug and the electronic device is generally hidden from view. Thus, it is often difficult for a user to readily ascertain whether or not the RJ-type connector plug is electrically coupled to the electronic device.




Another problem with conventional RJ-type connectors is determining the status and operation of the electronic device with which the connector interacts. In particular, it is often difficult to determine whether a specific operation or program of the device is active, inactive, complete or ready to be performed. Similarly, parameters such as the operational status of the device are not always readily apparent. For example, it may be difficult to ascertain whether the device is preparing for operation, ready for operation or operational.




It is known to use of various types of diagnostic software in order to obtain feedback regarding the connection of the electronic device to the communication system or network. For example, the user may run diagnostic software to obtain information regarding parameters such as the status and operation of the connector and/or the electronic device with which the connector interacts. While such diagnostic software is somewhat effective, it is problematic in that there are expenses, often significant, associated with obtaining and installing the diagnostic software. Further, there is no guarantee that, even when properly installed, the diagnostic software is functioning properly and providing accurate and complete feedback. Finally, the use of such diagnostic software is often time-consuming and disruptive.




Another known method commonly employed to obtain feedback regarding parameters such as the operation and status of the connector, and/or the devices with which the connector interacts, involves testing various elements of the system hardware or device in which the connector is employed, and/or testing of the connector itself. This approach, however, is problematic for a variety of reasons. For example, many users do not have access to the instrumentation necessary to carrying out such testing. Further, such instrumentation is often expensive, time-consuming to use and difficult to operate.




It is also known to use “light pipes” in conjunction with light emitting diodes (“LED”s) to provide visual feedback to the user of an electronic device. For example, the electronic device may include an LED disposed adjacent to one end of the light pipe. The other end of the light pipe may be disposed in an exterior surface of the electronic device. Light from the LED is transmitted through the light pipe and the user can view the light exiting the end of the light pipe. The light may be used to indicate if the electronic device is active and operational.




Conventional devices utilizing LEDs and light pipes, however, suffer from various shortcomings that impair their effectiveness. One such shortcoming concerns the specific arrangement of the light pipe and the LED. When the LED emits light, a portion of the emitted light enters the light pipe and is conducted to the predetermined location. A large portion of the light emitted by the LED, however, does not enter the light pipe and it typically illuminates the interior portion of the electronic device. Accordingly, conventional devices are inefficient because only a fraction of the light emitted from the LED is actually transported through the light pipe. As a consequence of such inefficiency, the quality of the feedback provided by the light pipe arrangement is compromised.




Another problem inherent in conventional light pipe arrangements is that the light pipe must be precisely placed during assembly so that adequate optical communication between the light pipe and LED is achieved. Ensuring such precise placement adds to the expense of producing devices incorporating a light pipe arrangement.




Yet another shortcoming relating to typical light pipe arrangements concerns the fact that the LED and light pipes are arranged in such a way that dust and other contaminants, such as may be produced during production and/or operation of the electronic device, can accumulate on the LED and/or on the ends of the light pipe. Such contaminants may compromise the efficiency with which light emitted by the LED is passed to the light pipe. Such a reduction in efficiency of light transmission, in turn, compromises the overall operation of the light pipe arrangement and the quality and reliability of the feedback that it provides.




Further, typical light pipes and light pipe arrays are often characterized by complex geometries and frequently necessitate the use of special tooling to facilitate their manufacture. Such special tooling often increases the costs associated with production of the light pipes and light pipe arrays, and thus, the devices in which the light pipes are employed.




Finally, the transmission of the light from the LED to the light pipe is inefficient because the light must pass through different mediums. That is, the light from the LED is first transmitted through the air and then to the end of the light pipe, which is often constructed from a plastic, generally translucent material. As known to those skilled in the art, transmission of the light through different mediums causes undesirable reflections, scattering of the light and other problems resulting in the loss of light.




SUMMARY OF THE INVENTION




A need therefore exists for a visual feedback system that provides information to the user and overcomes the above-described disadvantages and problems.




One aspect of the present invention is visual feedback system that employs one or more light reflecting surfaces to provide effective and reliable feedback to a user regarding aspects such as the operation and status of various electronic systems and devices. Advantageously, the light reflecting surfaces efficiently transfer light while reducing undesirable scattering and loss of light. Significantly, the light reflecting surfaces can direct the light directly from the light source to a target such as a receptacle for receiving a connector plug or an exterior portion of the electronic device.




Another aspect of the visual feedback system is it can be used with a wide variety of electronic devices, such as communication cards that are frequently used with computers or other electronic devices. Preferably the communication card complies with standards established by the Personal Computer Memory Card International Association (PCMCIA) of San Jose, Calif. For example, the communication card can comply with the PCMCIA standards for electronic devices such as a Type I, II or III PC Card, a miniature card, a smart media card, a flash card and the like. It will be appreciated, however, that any suitable type of communication card or electronic device can be used with the visual feedback system.




Yet another aspect is a visual feedback system for a PC card that includes a housing within which is disposed a printed circuit board having electronic circuitry for implementing the functionality of the PC card. The PC card also includes one or more connectors, such as an RJ-type connector or XJACK® type connector manufactured by 3Comm Corp. of Santa Clara, Calif., the assignee of the present application. The connectors preferably allow electrical communication to be established with the electronic circuitry of the printed circuit board. At least one light source, preferably a light emitting diode (LED), is disposed within the housing and arranged for communication with the electronic circuitry of the printed circuit board. The light source is preferably configured so that it emits light, ceases to emit light, and/or intermittently emits light, consistent with various predefined operational and status conditions of the electronic circuitry with which the light source is in communication. One or more light reflecting surfaces or members are disposed proximate to the light source and these surfaces reflect at least a portion of the received light into the connector and/or an outer portion of the PC card.




A further aspect of the visual feedback system is the light reflecting surfaces can extend from the light source to the target, or only a portion of that distance. Additionally, the visual feedback system can include one or more light reflecting surfaces. For example, the visual feedback system can include upper and lower reflecting surfaces that form a channel or path for directing the light. This light path or channel includes an entrance and an exit so that the light is directed to the desired location or target. Preferably, the exit of the light path is located in a portion of a receptacle that is sized to receive a connector plug so that light passing through the exit illuminates at least a portion of the connector plug when it is received within the receptacle. Alternatively, the light may illuminate the receptacle and/or the entire connector plug when it is received within the receptacle.




Another aspect of the visual feedback system is a system that provides various types of information to the user. For example, various operations implemented by the electronic circuitry of the PC card, and/or the device in which it is disposed, can cause the light source to emit light in a characteristic fashion. For example, the light source may provide signals according to a predetermined pattern, different brightness and/or intensity of the light, different colors, etc. Additionally, the system may include a plurality of light sources that may, for example, provide different colors and/or intensities of light.




Still another aspect of the visual feedback system is an efficient system that requires a minimum amount of light and power. For example, because the light reflecting members may enclose all or a portion of the light source, all or a majority of the light may be reflected by the light reflecting members. Additionally, the light reflecting members may be located such that all or a portion of the light is directed to a desired location. Advantageously, the light reflecting members can significantly reduce or eliminate the loss of undesirable light. Significantly, because the visual feedback system efficiently directs the light with a minimum loss of light, that allows a lower-powered or smaller light source to be used.




Yet another aspect of the visual feedback system is light reflecting surfaces that direct the light from the light source to the target without requiring the light to be transmitted through a different medium. This minimizes problems such as undesirable reflections and scattering of the light. Significantly, the target could be an aperture or window in the receptacle that allows light to illuminate all or a portion of the receptacle. This allows a user to ascertain the status of various operational or status parameters of the PC card and/or the device in which the PC card is received by observing the state of illumination of the receptacle. Additionally, light from the light source within the PC card can be transmitted to the receptacle and/or to a translucent plug which is received within the receptacle. In this instance, the user can obtain visual feedback simply by observing the illumination of the plug. Alternatively, the light from the light source could be directed to any desired structure or location, such as an indicator, window or aperture in an outer surface of the device.




These aspects of the invention are effective in providing, among other things, reliable visual feedback to a user in situations when a connector plug is disposed in the receptacle of the connector, and also in situations when no plug is present in the receptacle. Significantly, because the visual feedback system does not require the transmission of light through different mediums, problems such as loss of light, undesirable reflection and scattering of light are significantly reduced.




These and other aspects, features and advantages of the present invention will become more fully apparent from the following description of the preferred embodiments and appended claims.











BRIEF DESCRIPTION OF THE DRAWINGS




In order that the manner in which the above-recited and other advantages and features of the invention are obtained, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings in which:





FIG. 1

is an exemplary operating environment for a preferred embodiment of the present invention, illustrating the visual feedback system used in connection with a Type III PC Card;





FIG. 2

is a cross sectional side view along lines


2





2


of the visual feedback system shown in

FIG. 1

, illustrating the light source attached to the printed circuit board;





FIG. 3

is a top view of the visual feedback system shown in

FIG. 1

with the top cover removed, illustrating the printed circuit board and light reflecting surfaces;





FIG. 4

is a cross sectional side view of a portion of the visual feedback system shown in

FIG. 3

, illustrating light reflecting surfaces in accordance with a preferred embodiment of the present invention;





FIG. 5

is a cross sectional side view of a portion of the visual feedback system shown in

FIG. 3

, illustrating light reflecting surfaces in accordance with another preferred embodiment of the present invention;





FIG. 6

is a cross sectional side view of yet another preferred embodiment of the visual feedback system;





FIG. 7

is a cross sectional side view of still another preferred embodiment of the visual feedback system;





FIG. 8

is a cross sectional side view of yet another preferred embodiment of the visual feedback system;





FIG. 9

is a cross sectional side view of another preferred embodiment of the visual feedback system; and





FIG. 10

is a cross sectional side view of a further preferred embodiment of the visual feedback system.











DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS




Reference will now be made to figures wherein like structures will be provided with like reference designations. It is to be understood that the drawings are diagrammatic and schematic representations of various preferred embodiments of the claimed invention, and are not to be construed as limiting the present claimed invention.





FIG. 1

illustrates a PC card


100


. In general, PC card


100


refers to various peripherals and other devices including, but not limited to, memory cards, modem cards, and the like conforming to standards promulgated by the Personal Computer Memory Card International Association (PCMCIA). It will be appreciated that the PC card


100


provides an exemplary operating environment for preferred embodiments of the present invention, but other embodiments of the present invention are suitable for use in any application where reliable and effective visual feedback is desired. By way of example, embodiments of the present invention are suitable for use in applications including, but not limited to, desktop computers, personal computers, laptop computers, personal data assistants (“PDA”s), and various other types of electrical and electronic devices.




As discussed above, the PC card


100


preferably conforms to the physical design, dimensions, and electrical interface standards consistent with desired industry standards promulgated by the PCMCIA. By way of example, in one embodiment of the invention, the PC card


100


complies with the PCMCIA Type III form factor and is suitable for use in a corresponding PC card slot of a host device (not shown) such as a personal computer, laptop computer, or PDA. It will be appreciated, however, that the form factor of the PC card


100


may be varied to suit particular applications and/or to facilitate achievement of one or more desired results. One skilled in the art will appreciate that the PC card


100


does not have to comply with any particular standards and the visual feedback system could be used with any suitable device.




In general, the PC card


100


includes a housing


102


with a top surface


102


A, a bottom surface


102


B and a front face


103


C that cooperate to define a space within which a printed circuit board (PCB)


104


is generally enclosed. The PCB


104


typically includes various types of electronic circuitry


104


A necessary to implement the particular functionality or functionalities associated with the PC card


100


. The PC card


100


also includes one or more connectors that allow the PC card


100


to be connected to another device or system, such as a computer network or communications system. In particular, the PC card


100


may include one or more receptacles


106


that are electrically connected to the electronic circuitry


104


A and adapted to physically and electrically interface with an appropriate corresponding connector plug


108


so as to facilitate electrical communication between the connector plug and the PC Card. It will be appreciated that the PC card


100


may be in simultaneous electrical communication with one or more devices, and is not limited solely to electrical communication with a host device. Thus, for example, the PC card


100


may be connected to a telephone, network, or remote computer, either by way of a hardwired connection or a wireless connection.




Preferably at least one receptacle


106


is adapted to physically and electrically interface with an RJ-type connector plug, such as an RJ-11 plug or RJ-45 plug. Additionally, one or more of the connectors


106


may be an extendible/retractable connector, such as an XJACK® type connector or the like, adapted to physically and electrically interface with an RJ-type plug. One skilled in the art will appreciate that the PC Card


100


can include other types of suitable connectors such as coaxial cable connectors and the like. Accordingly, any suitable type of connector can be used in connection with the PC card


100


.




The PC card


100


additionally includes a visual feedback system, an embodiment of which is indicated generally at


200


. In general, the visual feedback system


200


is optically coupled with at least a portion of a connector, such as a receptacle


106


, to provide visual feedback to a user. It will be appreciated that such optical coupling may be achieved in various ways consistent with the teachings of the present invention. Exemplary arrangements, discussed in further detail below, include, but are not limited to, the receptacle


106


including an aperture


106


B through which light from visual feedback system


200


passes, as well as a connector defining a light path having an entrance proximate to visual feedback system


200


.




As shown in the accompanying figures, the visual feedback system


200


includes one or more light sources


202


disposed on the PCB


104


and the light sources are preferably in electrical communication with the electronic circuitry


104


A of the PC card


100


. The light source


202


preferably comprises a light emitting diode (LED), but it will be appreciated that various other types of light sources may also be used. It will also be appreciated that variables including, but not limited to, brightness, color, duration of illumination, as well as the size, shape, number, types, configuration and arrangement, of the light sources maybe be varied either alone or in various combinations as required to suit a particular application and/or to facilitate achievement of one or more desired results.




The light sources


202


are preferably electrically configured to emit light, cease to emit light, or emit light in a characteristic pattern or fashion, intermittently for example. Preferably, the response of the light sources


202


are indexed to various predetermined events concerning the operation and status of components and systems of PC card


100


and/or components and systems with which PC card interacts, either directly or indirectly, so as to provide visual feedback to a user in order to aid the user in ascertaining such operation and status, among other things.




By way of example, the light source


202


may be electrically configured to emit light when communication has been established between the PC card


100


and a remote device, such as a telephone. Consistent with the foregoing, the light source


202


may further be configured to cease to emit light upon disestablishment of such communication. As another example, the light source


202


may be electrically configured to emit light at such time as one or more electronic circuits of PC card


100


have been energized.




Further, one or more of the light sources


202


may be electrically configured to emit light upon establishment of communication between a host device (not shown) in which PC card


100


is received, and a remote computer network. In this example, the light source


202


may include two different lights, one colored red and one colored green, so that the green light would be illuminated when network communication had been established, and the red light would be illuminated where no network communication had been established. Alternatively, a toggle arrangement could be employed where the green light is illuminated when network communication is established, and the green light is simply extinguished when there is no network communication.




It will be appreciated that the foregoing are simply exemplary arrangements and that the light source


202


may be electrically configured to be responsive to any of a variety of events, or combinations of events, relating to or concerning the operation, status, or the like, of components and systems of PC card


100


and/or components and systems with which PC card interacts.




When the light source


202


emits light, the emitted light is reflected by one or more light reflecting surfaces or members


204


to a desired location or target. As shown in Figure


1


, the light reflecting surfaces


204


preferably direct light from the light source


202


to the receptacles


106


that are sized and configured to receive RJ-type connector plugs. In particular, the light reflecting surfaces


204


preferably comprise a single structure that extends from the light source


202


to the receptacle


106


, but the light reflecting surfaces could extend between only a portion of the light source and the receptacle. One skilled in the art will appreciate that the light reflecting surfaces could have a variety of suitable configurations and arrangements. Accordingly, the light reflecting surface


204


shown in

FIG. 1

is one preferred embodiment, but it will be understood that other arrangements and embodiments of light reflecting surface are intended to be within the scope of the present invention.




The light reflecting surface


204


, for example, may also include a plurality of light reflecting surfaces that cooperatively reflect light. In one embodiment, two light reflecting surfaces are disposed opposite each other so as to capture and reflect light between the opposing surfaces. Alternatively, the light reflecting surfaces may enclose all or a portion of the light source, or the light reflecting surfaces may form a generally enclosed conduit or pathway from the light source to the desired target or location. It will be understood that the light reflecting surfaces


204


can have various shapes, sizes, configuration and geometries that are suitable for directing light to the desired location or target. Further, the light reflecting surfaces can be constructed from any desired structure and the surfaces may have any suitable configurations, including, but not limited to, convex, concave, or parabolic.




The light reflecting surfaces


204


may include any type of structure or surface that reflects at least some light, such as mirrors, mirrored surfaces created by suitable paintings or coatings, polished glass surfaces, polished metal surfaces, polished plastic surfaces, stickers and the like. While polished glass, metal and plastic surfaces preferably comprise a slab or block of material with one surface polished or otherwise treated to reflect light, other embodiments of light reflecting surfaces typically include a substrate having disposed thereon or otherwise attached thereto, a reflective coating. It will be appreciated that both the substrate and the reflective coating may each take a variety of forms and that the reflective coating may be disposed on the substrate in any of a variety of different ways. The reflective coating may be applied to the substrate by any suitable process, wherein such processes include, but are not limited to, vacuum metalization, vapor deposition, and metal spattering. Alternatively, the reflective coating may take the form of a reflective surface having an adhesive side that is joined to a suitable substrate.




With respect to the foregoing discussion regarding the various embodiments configurations of light reflecting surfaces


204


, it will be appreciated, that various combinations of one or more features of the foregoing examples may be employed in a single application as required to suit a particular application and/or to facilitate a desired result. Details regarding some exemplary preferred embodiments are provided below in the discussion of

FIGS. 2 through 10

.




As shown in

FIG. 1

, two light reflecting members


204


are indicated, each corresponding to a respective light source


202


.




The light reflecting members


204


are preferably composed of an electrically conductive material, such as metal, and are joined together at one end, as indicated, to cooperatively form an integral ground plane


204


A disposed on or above the upper surfaces of the receptacles


106


. In this embodiment, ground plane


204


A further includes one or more ground path legs


204


B, which serve, among other things, to ground connector


106


and/or plug


108


to an appropriate ground connection located on PCB


104


. As a result of its grounding functionality, the illustrated embodiment is well suited for use, for example, in conjunction with an Underwriters Laboratory (“UL”) Category


5


cable/connector system. It will be appreciated however that such grounding functionality may be profitably employed in conjunction with various other types of cables, plugs, and connectors as well. Alternatively, the light reflecting members


204


do not have to be connected to ground and could, for example, be for added strength.




It will be appreciated that ground plane


204


A and ground path legs


204


B need not be incorporated in a single, unified structure with light reflecting members


204


, and that the functionality provided by ground plane


204


A and ground path legs


204


B may be supplied by way of a structure separate and distinct from light reflecting members


204


. Furthermore, as discussed herein, light reflecting members


204


need not be composed of an electrically conductive material, but may comprise any of a variety of other materials as well.




Directing attention now to

FIGS. 2 through 4

, and with continuing attention to

FIG. 1

, additional details are provided regarding a preferred embodiment of visual feedback system


200


. In particular, one embodiment of light reflecting surface


204


comprises a single piece of material formed into a substantially tunnel-shaped body


204


C that includes a reflective surface


204


D, which encloses all or a portion of the light source


202


. As a result of this configuration, a substantial portion of the light emitted by light source


202


is captured by light reflecting member


204


.




Note that while the embodiment of visual feedback system


200


illustrated in

FIGS. 1 through 4

, discloses a light reflecting member


204


of single piece construction, it will be appreciated that visual feedback system


200


may include two or more light reflecting members. One embodiment of such an arrangement is considered in further detail below in the context of the discussion of FIG.


5


.




After receiving the light emitted by the light source


202


, the reflective surface


204


C reflects the received light along a predetermined path to one or more desired targets or locations. As indicated in

FIG. 1

, the light reflecting members


204


reflect the light so that the light is visible in a location that is proximate to the front face


102


C of the PC card


100


. More specifically, the light reflected by light reflecting member


204


is preferably directed to a location proximate to the receptacle


106


. Advantageously, the light may be used to illuminate the receptacle


106


. Additionally, the light may be used to illuminate the connector plug


108


when it is received within the receptacle. In particular, as best seen in

FIG. 4

, the connector plug


108


is preferably at least partially translucent or includes a translucent portion that is optically coupled to the visual feedback system


200


by the aperture or opening


106


B in the receptacle


106


. The aperture


106


B allows light to enter the receptacle


106


and the connector plug


108


when it is received within the receptacle. The aperture


106


B could also comprise a window or other structure that allows at least some of the light to pass into the receptacle. Accordingly, visual feedback may be provided to the user when the connector plug


108


is inserted into the receptacle


106


, as well as situations where the connector plug is not inserted into the receptacle.




As shown in

FIG. 5

, various details are provided regarding an alternative embodiment of a visual feedback system, indicated generally at


300


. In the illustrated embodiment, the visual feedback system


300


includes one or more light sources


302


, preferably comprising an LED, or the like, disposed on PCB


104


and electrically configured to be in electrical communication with electronic circuitry


104


A (not shown). Preferably, the visual feedback system


300


is arranged in the context of a PC card


100


having at least one connector


106


in electrical communication with electronic circuitry


104


A.




The visual feedback system


300


includes an upper light reflecting member


304


and a lower light reflecting member


306


, which cooperate to substantially enclose light source


302


such that light emitted by light source


302


is captured and reflected between the upper light reflecting member and the lower light reflecting member


306


. The upper and lower light reflecting members


304


and


306


cooperatively direct the light through the aperture


106


B and into the interior portion


106


A of the connector


106


. As indicated in the illustrated embodiment, the upper light reflecting member


304


and the lower light reflecting member


306


are supported and retained in place by respective support structures


304


A and


306


A. Support structures


304


A and


306


A serve to, among other things, ensure that the upper light reflecting member


304


and the lower light reflecting member


306


are positioned for light capturing and reflection performance consistent with the contemplated application.




It will be appreciated that the visual feedback system


300


may be assembled in any of a variety of ways. For example, in the context of the embodiment illustrated in

FIG. 5

, the upper light reflecting member


304


is preferably joined to the top cover


102


A of the PC card


100


and the lower light reflecting member


306


is attached to the receptacle


106


, PCB


104


or bottom cover


102


B. Advantageously, when the top cover


102


A is attached to the bottom cover


102


B during assembly of the PC card


100


, the upper light reflecting member


304


and the lower light reflecting member


306


assume the proper relative position with respect to each other. Of course, various other assembly techniques and processes may likewise be used with equal effect in this regard, and are accordingly contemplated within being in the scope of the present invention. Additionally, it will be appreciated that a plurality of light reflecting members may be used and arranged so that they collectively provide the functionality of upper light reflecting member


304


and lower light reflecting member


306


of FIG.


5


.




As shown in

FIG. 6

, another preferred embodiment of a visual feedback system


400


includes a PC card


100


with one or more receptacles


106


arranged for electrical communication with electronic circuitry


104


A (not shown) disposed on the PCB


104


. The receptacle


106


includes an interior portion


106


A and an aperture


106


B which facilitates, among other things, optical coupling of light emitted by visual feedback system


400


to receptacle


106


. The visual feedback system


400


directs light through the aperture


106


B to provide feedback to a user regarding various operations and conditions with respect to the functionality of PC card


100


, and or devices with which the PC card


100


interfaces. Generally, the visual feedback system


400


includes one or more light sources


402


, preferably comprising LEDs configured for electrical communication with electronic circuitry


104


A. The visual feedback system


400


also includes at least one lens


404


and at least one light reflecting member


406


, such as a substantially planar mirror, that are positioned to direct the light through aperture


106


B to illuminate the receptacle


106


and/or the connector plug


108


(not shown) received therein. Preferably, light reflecting member


406


is supported and positioned by structural elements of top cover


102


A of PC card


100


.




It will be appreciated that variables including, but not limited to, the size, number, shape, type, spacing, arrangements, and optical characteristics, of lens


404


and/or light reflecting member


406


may be varied either alone, or in various combinations, as required to facilitate achievement of one or more desired results and/or to suit a particular application. By way of example, lens


404


may alternatively be placed in the path of light reflected from light reflecting member


406


to achieve a desired effect or result with respect to the feedback provided by visual feedback system


400


. Further, one or more lenses


404


may be selected so as to cause a desired effect, scattering or focusing for example, with respect to light emitted by light source


402


.




Directing attention now to

FIG. 7

, visual feedback system


500


includes at least one light source


502


, preferably comprising an LED or the like, in electrical communication with electronic circuitry (not shown) disposed on the PCB


104


. In the illustrated embodiment, the PCB


104


is disposed within the PC card


100


that includes a top cover


102


A, which includes structure that positions and supports a light reflecting member


506


. The visual feedback system


500


also includes a lens


504


that is positioned to receive at least some of the light emitted by light source


502


. It will be understood that the lens


504


may be selected in accordance with particular desired optical properties, such as a lens that is optically configured to focus and/or collimate light emitted by the light source


502


. Preferably, light reflecting member


506


comprises a parabolic mirror, so as to concentrate and reflect the light received from light source


502


by way of lens


504


.




The visual feedback system


500


operate in a similar manner to the visual feedback system


400


. In particular, light emitted by light source


502


is passed through lens


504


so as to achieve one or more desired results or effects with respect to the emitted light. Then, the light passing through lens


504


is reflected by the light reflecting member


506


through the aperture


106


B of the receptacle


106


of the PC card


100


, thereby providing visual feedback to the user as to various operations and/or status of the PC card. As in the case of other embodiments of the present invention, the embodiment illustrated in

FIG. 7

is preferably used in conjunction with a substantially translucent plug


108


(not shown), so that the visual feedback provided by visual feedback system


500


can be transmitted through aperture


106


B and ultimately into plug


108


so as to provide visual feedback to a user even when plug


108


is disposed in PC card


100


.




Turning now to

FIG. 8

, yet another alternative embodiment includes a visual feedback system


600


wherein at least a portion of the light is reflected by the top cover


102


A of the PC card


100


. The visual feedback system


600


includes one or more light sources


602


, at least one of which preferably comprises an LED in electrical communication with electronic circuitry of PCB


104


. Preferably, light emitted by the light source


602


is cooperatively captured and reflected by a first light reflecting member


604


and a second light reflecting member


606


. Preferably, the first light reflecting member


604


and the second light reflecting member


606


are integral with each other and are held in position by way of suitable support structure


606


A. While in the illustrated embodiment, the first light reflecting member


604


and the second light reflecting member


606


each substantially comprises a curved surface, it will be appreciated that the light reflecting members may have any suitable configurations.




In addition to the first light reflecting member


604


and the second light reflecting member


606


, the visual feedback system


600


further includes an upper light reflecting surface


608


, preferably incorporated as a portion of top cover


102


A of PC card


100


. It will be appreciated that the upper light reflecting member


608


may take a variety of forms. By way of example, the upper light reflecting member


608


may simply comprise a polished portion of the underside of top cover


102


A. As another example, the upper light reflecting member


608


may comprise a light reflective coating sprayed onto a selected portion of the underside of top cover


102


A. As yet another example, the upper reflecting member


608


may comprise a discrete panel, installed in a corresponding opening of the top cover


102


A, which includes a reflective underside positioned to reflect light rays emitted by the light source


602


and/or reflected by the first or second light reflecting members


604


or


606


. As a further example, the upper light reflecting member


608


may comprise a reflective foil or the like having adhesive on one surface and attach to the underside of top cover


102


A and positioned so as to reflect light emitted by the light source


602


and/or reflected by the first or second light reflecting members


604


or


606


.




In operation, at least a portion of the light emitted by light source


602


is received by the first light reflecting member


604


, the second light reflecting member


606


and/or upper light reflecting member


608


. This light is directed through aperture


106


B. As discussed above, light from the visual feedback system


600


is directed through aperture


106


B and illuminates at least a portion of the receptacle


106


and/or the connector plug


108


received within the receptacle.




As shown in

FIG. 9

, a visual feedback system


700


includes at least one light source and a light reflecting member


704


configured and arranged to reflect light emitted by light source in a predetermined direction or to a predetermined location. The visual feedback system


700


includes a light source


702


that is preferably disposed within a PC card


100


. The PC card


100


includes a receptacle


106


, preferably an RJ-type receptacle, and a light path


106


C that is optically coupled with visual feedback system


700


so that the light reflected and directed by light reflecting member


704


passes along light path


106


C. In an alternative to the embodiment of the invention illustrated in

FIG. 9

, light source


702


is mounted to, or proximate, the rear of connector


106


so that light emitted by light source


702


passes directly into light path


106


C without the intermediate reflection provided by light reflecting member


704


of the illustrated embodiment.




It will be appreciated that while light path


106


C is preferably configured so that light exiting light path


106


C does so in a location proximate to the front of receptacle


106


, the light path


106


C may be configured in a variety of different ways to direct light received from light reflecting member


704


to various other predetermined locations. It will further be appreciated that receptacle


106


may include a plurality of light paths


106


C, consistent with a desired result or functionality.




Preferably, the light path


106


C comprises a hollow passage lined with suitable reflective material and the light path includes an entrance


107


A and an exit


107


B. The exit


107


B is preferably located proximate the front of the receptacle


106


, but it will be appreciated that light path


106


C may be constructed in a variety of other ways consistent with the teachings of the present invention. By way of example, light path


106


C may be formed by molding a plurality of light reflecting surfaces within the body of receptacle


106


so that such light reflecting surfaces cooperate to direct light from light reflecting member


704


in a form and manner consistent with the contemplated application.




It will be appreciated that the foregoing are simply exemplary implementations of the functionality provided by light path


106


C, and that light path


106


C may be constructed in any of a variety of different ways consistent with the embodiments of the present invention. Accordingly, the foregoing exemplary embodiments of light path


706


should not be construed as limiting the scope of the present invention in any way.




As discussed above in the context of

FIGS. 6 and 7

, various embodiments of the visual feedback system may include one or more lenses as required to achieve a desired effect and/or to facilitate achievement of one or more desired results. It will be appreciated that the selection and/or placement of such a lens, or lenses, as well as the optical properties of such lenses, may be varied as necessary to suit a particular application.




In the embodiment illustrated in

FIG. 10

, a visual feedback system


800


includes one or more light sources


802


, preferably comprising LEDs, that are electrically configured to communicate with electronic circuitry


104


A (not shown) disposed on the PCB


104


. A light reflecting member


804


disposed proximate to light source


802


serves to receive light emitted by light source


802


and to reflect the received light in a form and manner consistent with the contemplated application. In the illustrated embodiment, visual feedback system


800


additionally includes one or more lenses


806


arranged to receive light reflected by light reflecting member


804


and to create one or more desired effects with respect to such received light.




For example, the lens


806


is configured to receive light emitted by light reflecting member


804


and scatter the received light within receptacle


106


of connector


106


. It will be appreciated, however, that various different types of lenses


806


, or a combination thereof, may be employed as desired to suit a particular application and/or to achieve one or more desired effects with respect to the properties of the visual feedback provided by visual feedback system


800


.




In view of the foregoing discussion of various embodiments of the invention, it will be appreciated that aspects of such embodiments may be combined and employed in a variety of ways consistent with the teachings of the present invention. Thus, the illustrated embodiments are exemplary combinations only, and the scope of the present invention should not be construed solely to the embodiments illustrated herein.




The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.



Claims
  • 1. An electronic device, comprising:(a) a housing; (b) a printed circuit board including electronic circuitry and being substantially disposed within said housing; (c) at least one connector in communication with said electronic circuitry and defining a receptacle configured to physically and electrically interface with an electrical plug; and (d) a visual feedback system optically coupled with a portion of said at least one connector, and including: (i) at least one light source in communication with said electronic circuitry, emission of light from said at least one light source being indexed to occurrence of at least one predetermined event relating to said electronic circuitry; and (ii) at least one light reflecting member configured and arranged to receive light emitted by said at least one light source and to reflect at least some received light into said portion of said connector with which said visual feedback system is optically coupled; wherein said electronic device further comprises a ground plane disposed on top of said at least one connector and attached to said at least one light reflecting member.
  • 2. The electronic device as recited in claim 1, further comprising a plug ground connection path integral with said ground plane.
  • 3. An electronic device, comprising:(a) a housing; (b) a printed circuit board including electronic circuitry and being substantially disposed within said housing; (c) at least one connector in communication with said electronic circuitry and defining a receptacle configured to physically and electrically interface with an electrical plug; (d) a visual feedback system optically coupled with a portion of said at least one connector, and including: (i) at least one light source in communication with said electronic circuitry, emission of light from said at least one light source being indexed to occurrence of at least one predetermined event relating to said electronic circuitry; and (ii) at least one light reflecting member configured and arranged to receive light emitted by said at least one light source and to reflect at least some received light into said portion of said connector with which said visual feedback system is optically coupled; and (e) at least one lens interposed between said at least one light source and said at least one light reflecting member.
  • 4. In an electronic device having a housing and a printed circuit board, the printed circuit board including electronic circuitry and being disposed within the housing, a visual feedback system for conveying information concerning the electronic device, the visual feedback system comprising:(a) at least one light source in communication with the electronic circuitry, emission of light from said at least one light source being indexed to occurrence of at least one predetermined event relating to the electronic circuitry; (b) means for reflecting light, said means for reflecting light receiving light emitted by said at least one light source and reflecting some received light at least indirectly out of the housing; and (c) at least one lens, said at least one lens being arranged to pass light from said at least one light source to said means for reflecting light.
  • 5. In an electronic device having a housing and a printed circuit board, the printed circuit board including electronic circuitry and being disposed within the housing, a visual feedback system for conveying information concerning the electronic device, the visual feedback system comprising:(a) at least one light source in communication with the electronic circuitry, emission of light from said at least one light source being indexed to occurrence of at least one predetermined event relating to the electronic circuitry; (b) at least one light reflecting member configured and arranged to receive light emitted by said at least one light source and to reflect at least some received light at least indirectly out of the housing; and (c) at least one lens interposed between said at least one light source and said at least one light reflecting member.
  • 6. In an electronic device including a light source in communication with electronic circuitry and including at least one light reflecting member positioned to receive light from the light source, and at least one lens, a method for providing visual feedback concerning the electronic device, the method comprising:(a) generating, with the light source, light within the electronic device; (b) receiving some generated light at a light reflecting member; and (c) reflecting, with the light reflecting member, at least some received light to a first predetermined location; wherein at least some light from the light source is passed through the at least one lens prior to reflection of said received light by said at least one light reflecting member.
  • 7. A PC card, comprising:(a) a housing; (b) a printed circuit board including electronic circuitry and being substantially disposed within said housing; (c) at least one RJ-type connector in communication with said electronic circuitry and defining a receptacle defining an aperture and configured to physically and electrically interface with an RJ-type plug; (d) a visual feedback system, including: (i) at least one light emitting diode in communication with said electronic circuitry, emission of light from said at least one light emitting diode being indexed to occurrence of at least one predetermined event relating to said electronic circuitry; and (ii) at least one light reflecting member, said at least one light reflecting member receiving light emitted by said at least one light emitting diode and reflecting some received light through said aperture and into said receptacle defined by said connector; and (e) at least one lens interposed between said at least one light emitting diode and said at least one light reflecting member.
  • 8. An electronic device, comprising:a housing; a printed circuit board disposed within the housing and including electronic circuitry and electronic components; a connector in electrical communication with the electronic circuitry, the connector including a receptacle that is sized and configured to receive a media plug, the connector being configured to allow electrical communication to be established between the media plug and the electronic circuitry when the plug is received within the receptacle; and a visual feedback system for directing light to a target without transmitting the light through a different medium, the visual feedback system including: a light source in communication with said electronic circuitry; and a light reflecting surface that is sized and configured to reflect light from the light source to the target, the light reflecting surface being a parabolic mirror.
  • 9. The electronic device as recited in claim 8, wherein the light reflecting surface is configured to form a light reflective pathway.
  • 10. The electronic device as recited in claim 8, wherein the light reflecting surface is at least partially curved in order to direct light towards the target.
  • 11. The electronic device as recited in claim 8, wherein the target is at least a portion of the connector.
  • 12. The electronic device as recited in claim 8, wherein the target is at least a portion of an outer surface of the housing.
  • 13. The electronic device as recited in claim 8, wherein the target is at least a portion of the media plug when the media plug is received within the receptacle in the connector.
  • 14. The electronic device as recited in claim 8, wherein the light reflective surface extends generally from the light source to the target.
  • 15. The electronic device as recited in claim 8, wherein the light reflecting surface forms a portion of said housing.
  • 16. In an electronic device including a housing, a printed circuit board with electronic circuitry and electronic components disposed within the housing, a connector in electrical communication with the electronic circuitry and including a receptacle that is sized and configured to receive a media plug, and a visual feedback system disposed within the housing for transmitting light to a target, the visual feedback system capable of conveying information concerning the electronic device to a user, the visual feedback system comprising:a light source in communication with the electronic circuitry, the light source emitting light according to one or more predetermined events; and a light reflecting surface that is sized and configured to reflect at least some of the light emitting from the light source to a target without the emitted light being transmitted through a change in medium, the light reflecting surface being a parabolic mirror.
  • 17. The visual feedback system as recited in claim 16, wherein the target is at least a portion of the connector.
  • 18. The visual feedback system as recited in claim 16, wherein the target is at least a portion of an outer surface of the housing.
  • 19. The visual feedback system as recited in claim 16, wherein the target is at least a portion of the media plug when the media plug is received within the receptacle in the connector.
  • 20. A communication card that is capable of being connected to an electronic device such as a computer, the communication card comprising:a housing; a circuit board disposed within the housing, the circuit board including electronic circuitry and electronic components; a connector in electrical communication with the electronic circuitry of the circuit board, the connector being sized and configured to removably receive a RJ-type connector plug; and a visual feedback system, including: a light source in communication with the electronic circuitry of the circuit board; and a light reflecting member that is sized and configured to receive light emitted from the light source and reflect the light to a target without transmitting the light through a different medium, the light reflecting surface being a parabolic mirror.
  • 21. The communication card as recited in claim 20, wherein the light reflecting member is configured to form a light reflective pathway.
  • 22. The communication card as recited in claim 20, wherein the light reflecting member is at least partially curved in order to direct light towards the target.
  • 23. The communication card as recited in claim 20, wherein the target is at least a portion of the connector.
  • 24. The communication card as recited in claim 20, wherein the target is at least a portion of an outer surface of the housing.
  • 25. The communication card as recited in claim 20, wherein the target is at least a portion of the media plug when the media plug is received within the receptacle in the connector.
  • 26. The communication card as recited in claim 20, wherein the light reflective member extends generally from the light source to the target.
  • 27. The communication card as recited in claim 20, wherein the light reflecting member forms a portion of said housing.
CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part (CIP) of U.S. patent application Ser. No. 09/246,534, entitled Functionally Illuminated Electronic Connector With Improved Light Dispersion, filed Feb. 8, 1999, now U.S. Pat. No. 6,257,906, which is incorporated by reference in its entirety.

US Referenced Citations (93)
Number Name Date Kind
2916720 Steans Dec 1959 A
3500293 Cocco Mar 1970 A
4136357 Frederiksen Jan 1979 A
4186988 Kobler Feb 1980 A
4241974 Hardesty Dec 1980 A
4271455 McComas Jun 1981 A
4303296 Spaulding Dec 1981 A
4352492 Smith Oct 1982 A
4379606 Clark et al. Apr 1983 A
4386818 Millhimes et al. Jun 1983 A
4407559 Meyer Oct 1983 A
4428636 Kam et al. Jan 1984 A
4457570 Bogese, II Jul 1984 A
4564728 Romano Jan 1986 A
4566749 Johnston Jan 1986 A
4620070 Ruehl Oct 1986 A
D291071 Breil Jul 1987 S
4710136 Suzuki Dec 1987 A
4778410 Tanaka Oct 1988 A
4789224 Bougsty Dec 1988 A
4800466 Bauer et al. Jan 1989 A
4887876 Fricke et al. Dec 1989 A
4915648 Takase et al. Apr 1990 A
4978317 Pocrass Dec 1990 A
5035641 Van-Santbrink et al. Jul 1991 A
5051099 Pickles et al. Sep 1991 A
5062807 Guss, III Nov 1991 A
5139439 Shie Aug 1992 A
5183404 Aldous et al. Feb 1993 A
5184282 Kaneda et al. Feb 1993 A
5222164 Bass, Sr. et al. Jun 1993 A
5268823 Yergenson Dec 1993 A
5319527 Murphy et al. Jun 1994 A
5327328 Simms et al. Jul 1994 A
5336099 Aldous et al. Aug 1994 A
5338210 Beckham et al. Aug 1994 A
5345367 Pierce et al. Sep 1994 A
5359165 Leveque et al. Oct 1994 A
5391094 Kakinoki et al. Feb 1995 A
5411405 McDaniels et al. May 1995 A
5457600 Campbell et al. Oct 1995 A
5463261 Skarda et al. Oct 1995 A
5474463 Robinson et al. Dec 1995 A
5481616 Freadman Jan 1996 A
5487123 Fowble Jan 1996 A
5499923 Archibald et al. Mar 1996 A
5505633 Broadbent Apr 1996 A
5509811 Homic Apr 1996 A
5513373 Damkier Apr 1996 A
5538442 Okada Jul 1996 A
5547401 Aldous et al. Aug 1996 A
5561727 Akita et al. Oct 1996 A
5562504 Moshayedi Oct 1996 A
5597227 Bergen et al. Jan 1997 A
5608607 Dittmer Mar 1997 A
5613873 Bell, Jr. Mar 1997 A
5634802 Kerlaan Jun 1997 A
5645577 Fröberg et al. Jul 1997 A
5646816 Alden et al. Jul 1997 A
5654873 Smithson et al. Aug 1997 A
5660568 Moshayedi Aug 1997 A
5667395 Okada et al. Sep 1997 A
5668654 Benjamin et al. Sep 1997 A
5679013 Matsunaga et al. Oct 1997 A
5692914 Mitani et al. Dec 1997 A
5697815 Drewnicki Dec 1997 A
5704802 Loudermilk Jan 1998 A
5727862 Wu Mar 1998 A
5727972 Aldous et al. Mar 1998 A
5741152 Boutros Apr 1998 A
5755822 Scheffner May 1998 A
5759067 Sheer Jun 1998 A
5767623 Friedman et al. Jun 1998 A
5773332 Glad Jun 1998 A
5775946 Briones Jul 1998 A
5790041 Lee Aug 1998 A
5797771 Garside Aug 1998 A
5816832 Aldous et al. Oct 1998 A
5876239 Morin et al. Mar 1999 A
5885100 Talend et al. Mar 1999 A
5915060 Kerskey et al. Jun 1999 A
5915993 Belopolsky et al. Jun 1999 A
5938324 Salmon et al. Aug 1999 A
5967817 Greenstein Oct 1999 A
5971558 Peel Oct 1999 A
6062908 Jones May 2000 A
6075215 Bollinger, Jr. et al. Jun 2000 A
6095851 Laity et al. Aug 2000 A
6113422 Somerville et al. Sep 2000 A
6116962 Laity Sep 2000 A
6159307 Madsen et al. Dec 2000 A
6217391 Colantuono et al. Apr 2001 B1
6224417 Belopolsky et al. May 2001 B1
Foreign Referenced Citations (13)
Number Date Country
0740370 Oct 1996 EP
0862245 Sep 1998 EP
0895318 Feb 1999 EP
2214007 Aug 1989 GB
2229029 Sep 1990 GB
2247118 Feb 1992 GB
2247363 Feb 1992 GB
2315926 Feb 1998 GB
2316816 Mar 1998 GB
61-256850 Nov 1986 JP
11-273795 Oct 1999 JP
WO 9513633 May 1995 WO
WO 9846934 Oct 1998 WO
Non-Patent Literature Citations (4)
Entry
P.E. Knight and D.R. Smith, “Electrical Connector for Flat Flexible Cable,” IBM Technical Disclosure Bulletin, vol. 25, No. 1, Jun. 1982.
U.S. patent application Ser. No. 09/528,331, Oliphant et al., filed Mar. 20, 2000.
U.S. patent application Ser. No. 09/528,500, Oliphant et al., filed Mar. 20, 2000.
U.S. patent application Ser. No. 09/528,501, Oliphant et al., filed Mar. 20, 2000.
Continuation in Parts (1)
Number Date Country
Parent 09/246534 Feb 1999 US
Child 09/845078 US