Patent Grant
9785258
1. Field of the Invention
The present invention relates generally to an input device for use in a computer system. More particularly, the present invention relates to an ambidextrous mouse.
2. Description of the Related Art
Most computer systems, as for example general purpose computers such as portable computers and desktop computers, receive input from a user via an input device such as a mouse. As is generally well known, the mouse allows a user to move an input pointer (e.g., cursor) and to make selections with respect to a graphical user interface (GUI) on a display screen. The mouse typically includes a trackball or optical sensor (located at the bottom side of the mouse) for translating the motion of the users hand into signals that the computer system can use. For example, by positioning the mouse on a desktop and moving it thereon, the user can move an input pointer or cursor in similar directions within the GUI. The mouse also conventionally includes one or more buttons, which are located on the top side of the mouse. These one or more buttons, when selected, can initiate a GUI action such as menu or object selections. The one or more buttons are typically provided by on or more button caps that move relative to the housing (e.g., through an opening in the housing). Mice may also include a scroll wheel to give the user scrolling functionality. The scroll wheel saves time and steps, and allows a user to move through documents by physically rolling the wheel forward or backward-instead of clicking on the scroll bar displayed on the GUI. In the past, scrolling was implemented by selecting the scroll bar with the mouse, and moving the scroll bar on the GUI by moving the mouse up or down. Furthermore, many popular mice offer an asymmetric shape that fits the asymmetric shape of the hand. Unfortunately, an asymmetric mouse is handed, i.e., it can only be used by a right or left hand.
Although mice designs such as those described above work well, there are continuing efforts to improve their form, feel and functionality.
The invention relates, in one embodiment, to an ambidextrous mouse configured for left and right handed use. The handedness of the mouse is changed by rotating the mouse about a vertical axis of the mouse by 180 degrees.
The invention relates, in another embodiment, to a touch sensitive mouse comprising a touch sensitive surface that senses a user's touch when the user grabs the mouse.
The invention relates, in another embodiment, to a computing system. The computing system includes a computer. The computing system also includes a mouse operatively coupled to the computer. The mouse includes a position sensing device and a touch sensing device. The position sensing device is configured to generate tracking signals when the mouse is moved relative to a surface. The touch sensing device is configured to generate hand signals when a hand is placed over the mouse.
The invention relates, in another embodiment, to a method for operating a mouse having one or more buttons. The method includes determining if a user is touching the mouse. The method also includes determining the user based on the user's touch. The method additionally includes configuring the mouse based on the user.
The invention relates, in another embodiment, to a user determination method for a mouse. The method includes providing baseline hand signals. The method also includes generating a current hand signal when a user grabs the mouse. The method further includes comparing the current hand signal to at least one baseline hand signal. The method additionally includes determining a characteristic of the user based on the current and baseline hand signals.
The invention relates, in another embodiment, to a method for operating a mouse. The method includes determining if a user is touching the mouse. The method also includes determining the handedness of the user based on the user's touch. The method further includes configuring the motion axes of the mouse based on the handedness of the user. The method additionally includes generating position signals based on mouse movement and the motion axes. Moreover, the method includes sending the position signals to a host. The method also includes forming previous and current hand images and calculating the difference between the previous and current hand images. Thereafter, the method further includes generating control signals based on the difference between the previous and current hand images and sending the control signal to the host.
The invention will be readily understood by the following detailed description in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements, and in which:
The invention generally pertains to an ambidextrous mouse that can be used equally by both left and right hands. One aspect of the invention corresponds to a mouse that has the same feel and function for both the left and right hands. Another aspect of the invention corresponds to a mouse having a handedness selection system for configuring the mouse for right and left hand use. Another aspect of the invention corresponds to a mouse having a touch sensing device capable of sensing a user's touch when a user positions their hand over the mouse. The sensed user's touch may be used to determine characteristics of the user as well as to identify the user. The sensed user's touch may also be used to perform button functions.
These and other embodiments of the invention are discussed below with reference to
The mouse 20 generally includes a housing 22 that provides a structure for moving the mouse 20 along a surface and for gripping the mouse 20 for movement thereof. The housing 22 also helps to define the shape or form of the mouse 20. That is, the contour of the housing 22 embodies the outward physical appearance of the mouse 20. The contour may be rectilinear, curvilinear or both. In most cases, a bottom member 24 of the housing has an external contour that substantially conforms to the contour of a flat surface such as a desktop. In addition, a top member 26 of the mouse housing 22 generally has an external contour that substantially conforms to the contour of the inside surface of a hand. The top member 26 may be symmetric and/or asymmetric. Asymmetric mice are typically handed (e.g., dedicated to either the left or right hand) and symmetric mice are typically ambidextrous (e.g., capable of being used by both the left and right hand). In the illustrated embodiment, the lateral shape of the top member 26 (e.g., cross section in the X-Z plane) is asymmetric in order to provide ergonomic comfort to the asymmetric hand and the longitudinal shape of the top member 26 (e.g., cross section in the Y-Z plane) is symmetric in order to allow the mouse to be used by either hand (ambidextrous). With regards to ambidextrous, the mouse 20 may be rotated about the vertical axis by 180 degrees to change usage from right handed to left handed (or vice versa).
The housing 22 also provides a structure for enclosing, containing and/or supporting the components of the mouse 20. Although not shown, the components may correspond to electrical and/or mechanical components for operating the mouse 20. For example, the components may include a track ball or optical assembly for monitoring the movement of the mouse 20 along a surface and for sending signals corresponding to the movements to the host system. In most cases, the signals produced by these components direct an input pointer to move on a display screen in a direction similar to the direction of the mouse 20 as it is moved across a surface. For example, when the mouse 20 is moved forward or backwards, the input pointer is moved vertically up or down, respectively, on the display screen. In addition, when the mouse 20 is moved from side to side, the input pointer is moved from side to side on the display screen.
The mouse 20 also includes one or more buttons 28 for performing actions on the display screen. In most cases, the user simply presses on the button 28 in order to perform the action. By way of example, the actions may include selecting an item on the screen, opening a file or document, executing instructions, starting a program, viewing a menu, and/or the like. The button functions may also include functions that make it easier to navigate through the host system, as for example, zoom, scroll, open different menus, home the input pointer, perform keyboard related actions such as enter, delete, insert, page up/down, and the like.
The buttons 28 generally include one or more actuators (not shown in
The position of the buttons 28 relative to the mouse housing 22 may be widely varied. For example, the buttons 28 may be positioned almost anywhere (e.g., top, side, front, or back) on the mouse housing 22 so long as they are accessible to a user during manipulation of the mouse 20. Any number of buttons may be used. In most cases, the number of buttons correspond to the number of button functionalities offered by the mouse. For handed mice, a single button is typically provided if a single click is desired, and two buttons are provided if right and left clicks are desired. In some cases, more than two buttons are provided if a center click or scroll function is further desired. For ambidextrous mice, the mouse includes one or more buttons on opposing sides of the mouse, as for example on both the front and back of the mouse (e.g., 180 degrees opposite). This is done to ensure that both the left and right hands have a button(s). Like handed mice, each side of the ambidextrous mouse may include multiple buttons (e.g., right click, left click, center click, scroll, etc.). Furthermore, the buttons may be formed from almost any shape (e.g., squares, circles, ovals, triangles, rectangles, polygons, and the like). The shape of multiple buttons may have identical shapes or they may have different shapes. In addition, the size of the buttons may vary according to the specific needs of each device. In most cases, the size of the buttons corresponds to a size that allows them to be easily manipulated by a user (e.g., the size of a finger tip or larger).
In the illustrated embodiment, the mouse 20 is an ambidextrous mouse and therefore it includes a separate button 28A and 28B on both the front and back of the mouse. The ambidextrous mouse also includes a button 28C on the side of the mouse. The front button 28A may be actuated by a right handed user, the back button 28B may be actuated by a left handed user and the side button 28C may be actuated by the thumb of both the left and right hands. As should be appreciated, the mouse configuration shown in
The manner in which the buttons 28 may be implemented can be widely varied. For example, they may be selected from button caps, wheels, unified button housings, touch sensitive button housings and/or the like. Button caps or wheels typically work independent of and move relative to the housing 22. For example, the button cap may pivot or translate relative to the top member 26 and the wheel may rotate relative to the top member 26. In most cases, the movement of the button cap or wheel actuates one or more switches or sensors enclosed within the housing 22. For example, the button cap may actuate a tact switch located within the housing and the wheel may actuate an encoder located within the housing. The moving button cap or wheel may or may not produce a mechanical clicking action. As should be appreciated, a mechanical clicking action typically gives audible and tactile feedback to the user when the user presses on the button. In cases where there is no mechanical clicking action, the mouse may include audible and tactile feedback generators so that a user knows when the button has been actuated.
Additionally or alternatively, the buttons 28 may be provided by a unified button/housing that incorporates the functionality of a button (or buttons) directly into the housing 22 of the mouse 20, i.e., the button functionality and a substantial portion of the housing are combined (as opposed to attaching separate button caps or wheels to or through the housing). In a unified button housing, the housing 22 includes a movable member so as to actuate one or more switches or sensors enclosed within the housing 22. For example, the top member 26 may move relative to the bottom member 24 thus initiating the button function. The manner in which the top member 26 moves relative to the bottom member 24 may be widely varied. For example, the top member 26 may pivot, translate or rotate relative to the bottom member 24. In a unified button housing, the areas of the housing 22 that move generally take the form of button zones that represent regions of the mouse housing 22 that may be pressed on to implement one or more button functions. In essence, the housing 22 serves as a button (or buttons) of the mouse 20. Like the button cap and wheel, the unified button housing may or may not produce a clicking action. By way of example, a description of unified button housing such as that described in this paragraph may be found in commonly owned U.S. Pat. No. 6,373,470 and patent application Ser. No. 10/060,712, both of which are herein incorporated by reference.
Additionally or alternatively, the buttons 28 may be provided by touch sensitive surfaces on the housing 22. In this implementation, the switches and/or sensors of the button 28 produce working areas in the form of button zones that activate when a finger sits on, presses, or passes over them. The sensors may be contained within the housing 22 or they may be embedded in the housing 22 itself. Furthermore, the touch sensitive surfaces may be placed on stationary or moving parts of the mouse 20. In the case of stationary, they may be placed on a mouse where the top member and bottom member are fixed to one another thereby preventing movements therebetween. In the case of moving, they may be placed on a button cap that moves relative to the top member 26, or a top member 26 that moves relative to the bottom member 24 (e.g., unified button housing).
Although not shown in
In another embodiment, the handedness selection system is a mouse actuated system that allows the mouse 20 (or system connected thereto) to automatically configure the mouse 20 for right handed or left handed use based on how the user grabs the mouse 20 (e.g., position and pressure). If a left handed user grabs the mouse, then the mouse configures itself to be a left handed mouse during use. If a right handed user grabs the mouse, then the mouse configures itself to be a right handed mouse. Like the user actuated system, the mouse actuated system may be widely varied. For example, the system may include a sensor arrangement arranged to detect the hand on the surface of the mouse when a user grabs the mouse and thereafter make a determination as to whether the hand is left or the right hand based on what was detected. For example, if sensors detect the presence of fingers on area 28A and a palm on area 28B then the mouse can determine that the mouse is being used by a right handed user. Once the determination is made, the mouse 20 can turn on the functionality of the buttons 28 corresponding to the hand being used and turn off the functionality of the buttons corresponding to the hand not in use.
The sensor arrangement may also be configured to help make a determination as to how the user is holding the mouse. As should be appreciated, each user holds the mouse in a different manner and thus there may be discrepancies between how the user perceives the actuation of a button and how the mouse interprets the actuation of a button. By way of example, the sensor arrangement may help determine that the fingers are positioned in a particular manner with a particular amount of pressure therefore the user is trying to initiate a particular type of action (e.g., make a right click rather than a left click or vice versa). The sensor arrangement may also double as the actuator of a button (e.g., touch sensitive button housing). By way of example, the sensor arrangement may include touch sensitive sensors such as resistive sensors, surface acoustic wave sensors, pressure sensors (e.g., strain gauge), capacitive sensors and the like. An example of touch sensitive mice, which contain sensor arrangements, can be found in commonly owned U.S. patent application Ser. No. 10/157,343, which is herein incorporated by reference.
The unibody ambidextrous mouse 50 generally includes a mouse housing 52 that contains the circuitry of the mouse 50 as well as defines the shape or form of the mouse 50. With regards to the unibody design, the mouse housing 52 includes a base 54 and a movable button body 56. The base 54, which defines the lower portion of the mouse, provides a structure for supporting the various components of the mouse as well as for making moving contact with a surface such as a desktop or mouse pad. By way of example, the base 54 may support a trackball mechanism or an optical sensor so as to track the position of the mouse 50 as it is moved along the surface. The base may also support printed circuit boards (PCB), processors, transmitters, encoders, indicators, and the like.
The movable button body 56, which defines the upper portion of the mouse 50, provides a structure for moving the mouse 50 along a surface, for gripping the mouse 50 for movement thereof and for implementing the button functions of the mouse 50. Since the mouse 50 is ambidextrous, the button body 56 is configured to receive either a right or left hand 51R and 51L (e.g., ambidextrous). As shown in
Unlike the lateral shape, the longitudinal shape of the button body 56 as shown in
Because the mouse 50 is a unibody mouse, the button body 56 is configured to move relative to the base 54. The portions of the body 56 that move generally take the form of button zones 75 that represent regions of the body 56 that may be pressed on to implement one or more button functions. The movement of the body 56 relative to the base 54 may be provided through one or more degrees of freedom (DOF). The degrees of freedom may be implemented through one or more rotations, pivots, translations, flexes relative to the base 54. By way of example, the button body 56 may be coupled to the base 54 via one or more pin joints, slider joints, ball and socket joints, flexure joints and/or the like. In addition, the mouse may include combinations such as pivot/translating joint, pivot/flexure joint, pivot/ball and socket joint, translating/flexure joint, a flexure joint, a ball and socket joint, and the like.
In the illustrated embodiment, the mouse 50 includes a pair of button zones 75 on both the front and back side 72F and 72B of the mouse 50. The button zones 75A and 75B on the front side 72F are used by right handed users and the button zones 75C and 75D on the back side 72B are used for left handed users. As should be appreciated, the pair of button zones may provide a right and left click similar to that of conventional mice. In order to provide this configuration of button zones 75, the body 56 is configured to have four movements: front left tilt, front right tilt, back left tilt, and back right tilt. In order to provide these movements, the body 56 is configured to pivot in two directions relative to a base 54. As shown by the arrows, the body 56 can pivot about a first axis 80 and a second axis 82. The positions of the two axis 80, 82 may be widely varied so long as they allow the four movements described above. In the illustrated embodiment, the two axes 80, 82 are orthogonal (or perpendicular) to one another and centrally located relative to the mouse 50. As such, the shape of the button zones 75A-D are somewhat similar.
During right handed use, the body 56 is capable of moving between an initial position (no pivot) and a left tilt position (pivot about both axis) when a force is applied to a left front portion 75B of the body 56 and between an initial position and a right tilt position (pivot about both axis) when a force is applied to a right front portion 75A of the body 56. During left handed use, the body 56 is capable of moving between an initial position (no pivot) and a left tilt position (pivot about both axis) when a force is applied to a left back portion 75C of the body 56 and between an initial position and a right tilt position (pivot about both axis) when a force is applied to a right back portion 75D of the body 56. The force may be any downward force on the mouse 50, whether from a finger, palm or hand. The button body 56 may be spring biased so as to place the button body 56 in the initial position.
The button functions of the button zones 75A-D are implemented via actuators located underneath the button zones 75A-D. The actuators may be any combination of switches and sensors. Switches are generally configured to provide pulsed or binary data such as activate (on) or deactivate (off). The sensors, on the other hand, are generally configured to provide continuous or analog data. In one implementation, when the user presses on the particular button zone 75 an underside portion of the body 56 is configured to contact or engage (and thus activate) a switch located underneath the particular button zone 75. By way of example, the switch may correspond to a tact switch. In another implementation, when a user presses on the button zone 75 one or more sensors are configured to monitor the pressure exerted by the finger(s) on the surface of the mouse 50 proximate the button zone 75 as well as the position of the finger(s) on the surface of the mouse 50 proximate the button zone 75. By way of example, the sensors may be capacitance sensors. These and other embodiments will be described in greater detail below.
In addition to buttons 75, the mouse 50 includes a wheel 86 configured to generate a control function when rotated. In general, the wheel 86 is arranged to rotate around an axis 88 in order to implement the control function. The position of the wheel 86 relative to the mouse housing 52 may be widely varied. For example, the wheel 86 may be placed at any external surface of the mouse housing 52 that is accessible to a user during manipulation of the mouse 50 (e.g., top, side, front, or back). In the illustrated embodiment, the wheel 86 is positioned on the side 66A of the body 56 in a location proximate the middle of the mouse 50 (e.g., between the front and back 72F and 72B) so that it can receive the thumb of either hand (e.g., left or right) when the hand 51 is placed on the top side 58 of the mouse 50. When the thumb is received, the thumb may be used to rotate the wheel 86 in order to generate the control function. As should be appreciated, this position allows ambidextrous use.
The wheel 86 may be widely varied. For example, the wheel 86 may be configured to rotate about a horizontal (e.g., X or Y) or vertical axis (e.g., Z). Furthermore, the wheel 86 may protrude outwardly from the housing 52, be flush with the housing 52 or it may even be recessed within the housing 52. In the embodiment of
The control function initiated by the wheel may be widely varied. The control function may be implemented incrementally or continuously during rotation of the wheel 86. For example, the control function may be used to control various applications associated with the computer system to which the mouse is connected. The control function may correspond to a scrolling feature. The term “scrolling” as used herein generally pertains to moving displayed data or images (e.g., text or graphics) across a viewing area on a display screen so that a new set of data (e.g., line of text or graphics) is brought into view in the viewing area. In most cases, once the viewing area is full, each new set of data appears at the edge of the viewing area and all other sets of data move over one position. That is, the new set of data appears for each set of data that moves out of the viewing area. In essence, the scrolling function allows a user to view consecutive sets of data currently outside of the viewing area. The viewing area may be the entire viewing area of the display screen or it may only be a portion of the display screen (e.g., a window frame).
The direction of scrolling may be widely varied. For example, scrolling may be implemented vertically (up or down) or horizontally (left or right). In the case of vertical scrolling, when a user scrolls down, each new set of data appears at the bottom of the viewing area and all other sets of data move up one position. If the viewing area is full, the top set of data moves out of the viewing area. Similarly, when a user scrolls up, each new set of data appears at the top of the viewing area and all other sets of data move down one position. If the viewing area is full, the bottom set of data moves out of the viewing area. The scrolling feature may also be used to move a Graphical User Interface (GUI) vertically (up and down), or horizontally (left and right) in order to bring more data into view on a display screen. By way of example, the scrolling feature may be used to help perform internet browsing, spreadsheet manipulation, viewing code, computer aided design, and the like. The direction that the wheel 86 rotates may be arranged to control the direction of scrolling. For example, the wheel 86 may be arranged to move the GUI vertically up when rotated counterclockwise, and vertically down when the rotated clockwise (or vice versa).
The mouse 100 further includes a button zone selection mechanism 120 for configuring the button zones of the mouse 100. The mechanism 120 allows the user to activate and/or deactivate the button zones 100. This particular feature is advantageous in ambidextrous mice where it would be beneficial to turn off right handed button zones when using the mouse as a left handed mouse and to turn off left handed button zones when using the mouse as a right handed button. In the illustrated embodiment, the mechanism 120 is configured to activate one of the button zones while deactivating the other button zone. The mechanism generally includes a shuttle plate 122 that translates relative to the base 102 or button body 104. In
The cantilevers 124 and abutment stops 126 are configured to slide between the switches 110 and the nubs 116 on each side of the mouse 100. In order to turn off a button zone, the abutment stop 126 is slid between the housing of the switch 110 and the nub 116. The abutment stop 126 therefore prevents the nub 116 from contacting the actuator 118 when the corresponding button zone is selected. That is, the abutment stop 126 stops the motion of the nub 116 before it reaches the actuator 118. Because the actuator 118 cannot be contacted, no control signals can be generated and thus the button zone is deactivated. In order to activate a button zone, the cantilever 124 is slid between the nub 116 and the actuator 118. The cantilever 124 is an intermediate member that is capable of transmitting motion from the nub 116 to the actuator 118 of the switch 110. Because the actuator 118 may be actuated via the nub/cantilever 116/124, control signals can be generated and thus the button zone is activated.
To elaborate further, the shuttle plate 122 is connected to a support arm 128 and the support arm 128 is connected to a user actuated switch 130. The switch 130 is configured to move between a first position and a second position and the support arm 128 is configured to transmit the motion of the switch 130 to the shuttle plate 122. The switch 130 can therefore be used to slide the shuttle plate 122 to its various locations within the mouse 100 in order to activate and deactivate the button zones. In the illustrated embodiment, the switch 130 is capable of moving the shuttle plate 122 relative to both switches 110 and both nubs 116 so that the shuttle plate 122 turns off one of the button zones while turning on the other button zone. That is, the user simply moves the switch 130 to a the first position in order to activate the first button zone and deactivate the second button zone, and to the second position in order to activate the second button zone and deactivate the first button zone. For example, when the switch 130 is moved to the first position, the support arm 128 causes the shuttle plate 122 to translate towards the front of the mouse 100 thereby placing the abutment stop 126A between the nub 116A and the housing of switch 110A and the cantilever 124B between the actuator 118B and the nub 116B. Furthermore, when the switch 130 is moved to the second position, the support arm 128 causes the shuttle plate 122 to translate towards the back of the mouse 100 thereby placing the abutment stop 126B between the nub 116B and the housing of switch 110B and the cantilever 124A between the actuator 118A and the nub 116A.
The mechanism may be widely varied. For example, the components may be integrally formed as a unit or they may be separate components that work together (e.g., linkage). Furthermore, the components may be substantially free moving or they may be movably restrained. For example, the shuttle plate 122 may move within a guide formed by the base or body. Moreover, the switch 130 may be configured to translate, or rotate in order to move the shuttle plate. In the illustrated embodiment, the switch 130 translates within a recess 132 formed in the bottom side of the base 102. The recess 132 is generally longer than the switch 130 so that the switch 130 can be slid therein. In most cases, the switch 130 is recessed within the bottom side of the base 102 so that the switch 130 won't protrude therefrom. As should be appreciated, the bottom side of the base 102 is generally moved along a surface and therefore any protrusions would impede its motion or cause unwanted switches. In some cases, the switch 130 may include tactile surfaces such as a knurled surface.
In most cases, the processor 156 together with an operating system operates to execute computer code and produce and use data. The computer code and data may reside within a program storage 158 block that is operatively coupled to the processor 156. Program storage block 158 generally provides a place to hold data that is being used by the computer system 150. By way of example, the program storage block 158 may include Read-Only Memory (ROM), Random-Access Memory (RAM), hard disk drive and/or the like. The computer code and data could also reside on a removable program medium and loaded or installed onto the computer system when needed. Removable program mediums include, for example, CD-ROM, PC-CARD, floppy disk, magnetic tape, and a network component.
The computer 154 also includes an input/output (I/O) controller 160 that is operatively coupled to the processor 156. The (I/O) controller 160 may be integrated with the processor 156 or it may be a separate component as shown. The I/O controller 160 is generally configured to control interactions with one or more I/O devices (e.g., mouse 152) that can be coupled to the computer 154. The I/O controller 160 generally operates by exchanging data between the computer 154 and the I/O devices that desire to communicate with the computer 154. The I/O devices and the computer 154 typically communicate through a data link 162. The data link 162 may be a one way link or two way link. In some cases, the I/O devices may be connected to the I/O controller 160 through wired connections. In other cases, the I/O devices may be connected to the I/O controller 160 through wireless connections. By way of example, the data link 162 may correspond to PS/2, USB, IR, RF, Bluetooth or the like.
The computer 154 also includes a display controller 164 that is operatively coupled to the processor 156. The display controller 164 may be integrated with the processor 156 or it may be a separate component as shown. The display controller 164 is configured to process display commands to produce text and graphics on a display device 166. The display device 166 may be integral with the computer or it may be a separate component of the computer 154. By way of example, the display device may be a monochrome display, color graphics adapter (CGA) display, enhanced graphics adapter (EGA) display, variable-graphics-array (VGA) display, super VGA display, liquid crystal display (e.g., active matrix, passive matrix and the like), cathode ray tube (CRT), plasma displays and the like.
The mouse 152, on the other hand, generally includes a position sensing device 170 and a touch sensing device 172, both of which are operatively coupled to a microcontroller 174. The position sensing device 170 is configured to generate tracking signals when the mouse 152 is moved along a surface. The tracking signals may be used to control the movement of a pointer or cursor on the display screen 166. The tracking signals may be associated with a Cartesian coordinate system (x and y) or a Polar coordinate system (r, θ). By way of example, the position sensing device 170 may correspond to a conventional trackball or optical assembly.
The touch sensing device 172 is configured to generate hand signals when the hand is positioned over or on the mouse 152. The hand signals may be used to initiate button functions or to make a determination as to which user is using the mouse 152. By way of example, the button functions may include moving an object on the display screen, selecting an item on the display screen, opening a file or document, launching a program, executing instructions, viewing a menu on the display screen, and/or the like. The button functions may also include functions associated with keyboard related actions such as enter, delete, insert, page up/down, and the like. The button functions may further include gesturing. With regards to the determination, the user may correspond to the identity of the user (e.g., Bob or Carol) or to a type of user (e.g., left or right handed user). These and other embodiments will be described in greater detail below.
The touch sensing device 172 generally includes one or more sensors for detecting the proximity of the finger thereto and/or the pressure exerted thereon. By way of example, the sensors may be based on resistive sensing, surface acoustic wave sensing, pressure sensing (e.g., strain gauge), optical sensing, capacitive sensing and the like. Depending on the type of sensor used, the hand signals may be in the form of position signals as for example when the sensors are set up in a grid or pixilated format. In one particular embodiment, the touch sensing device uses capacitance sensors. As should be appreciated, whenever two electrically conductive members come close to one another without actually touching, their electric fields interact to form capacitance. In one configuration, the first electrically conductive member is one or more electrodes or wires and the second electrically conductive member is the finger of the user. Accordingly, as the finger approaches the surface of the mouse, a tiny capacitance forms between the finger and the electrodes/wires in close proximity to the finger. The capacitance in each of the electrodes/wires is measured by the microcontroller 174. By detecting changes in capacitance at each of the electrodes/wires, the microcontroller 174 can determine the user type and button selections when the finger or palm is placed on the mouse 152.
The microcontroller 174 is configured to acquire the data from the sensing devices 170 and 172 and to supply the acquired data to the processor 156 of the computer 154. In one embodiment, the microcontroller 174 is configured to send raw data to the processor 156 so that the processor 156 processes the raw data. For example, the processor 156 receives data from the microcontroller 174 and then determines how the data is to be used within the computer system 152. In another embodiment, the microcontroller 174 is configured to process the raw data itself. That is, the microcontroller 174 reads the pulses from the sensors of the sensing devices 170 and 172 and turns them into data that the computer 154 can understand. By way of example, the microcontroller 174 may place the data in a HID format (Human Interface Device). The microcontroller 174 may also convert the acquired signals into other forms of signals before sending them to the processor 156. For example, the microcontroller 174 may convert hand signals into button signals. With regards to button signals, the microcontroller 174 may set the distribution of button zones. The button zones generally represent a more logical range of user inputs than the sensors themselves. The microcontroller 174 may also be used to perform user type recognition, i.e., recognizes if the mouse is being used as a right or left hand by distinguishing fingers and palm of hand. The microcontroller 174 typically includes an application specific integrated circuit (ASIC) that is configured to monitor the signals from the sensing devices 170 and 172, to process the monitored signals and to report this information to the processor (e.g., x, y, button, left, right, etc.). By way of example, this may be implemented through Firmware.
In one embodiment, program storage block 158 is configured to store a mouse program for controlling information from the mouse 152. Alternatively or additionally, a mouse program or some variation thereof may be stored in the mouse 152 itself (e.g., Firmware). The mouse program may contain hand profiles associated with hand actions. The hand profiles generally describe how the mouse 152 is held while the hand actions describe what type of action to perform based on the hand profile. In one implementation, the hand profiles may be accessed by a user through a hand menu, which may be viewed on the display device as part of a GUI interface. The hand menu may include hand settings pertaining to the hand profiles and hand actions. In fact, the hand menu may serve as a control panel for reviewing and/or customizing the hand settings, i.e., the user may quickly and conveniently review the hand settings and make changes thereto. Once changed, the modified hand settings will be automatically saved and thereby employed to handle future mouse processing. The hand menu may also be used as part of a training sequence for training the mouse 152 to a particular user type.
As shown, the sensor arrangement 186 is divided into several independent and spatially distinct sensing points (or regions) 188 that are positioned around the periphery of the mouse 180. The sensing points 188 are generally dispersed about the mouse 180 with each sensing point 188 representing a different position on the surface of the mouse 180. The sensing points 188 may be positioned in a grid or a pixel array where each pixilated sensing point 188 is capable of generating a signal. The number and configuration of the sensing points 188 may be widely varied. The number and configuration of sensing points 188 generally depends on the desired resolution of the touch sensitive surface 182. In the simplest case, a signal is produced each time the finger is positioned over a sensing point 188. When an object is placed over multiple sensing points 188 or when the object is moved between or over multiple sensing points 188, multiple position signals are generated. In most cases, the signals are monitored by a control system (not shown) that converts the number, combination and frequency of the signals into control information. As should be appreciated, the number, combination and frequency of signals in a given time frame may indicate size, location, direction, speed, acceleration and the pressure of the finger or palm on the mouse 180. By way of example, the control system may be a microcontroller located on the mouse and/or a processor of a host device such as a computer.
In the illustrated embodiment, the sensing points 188 are based on capacitance. As should be appreciated, whenever two electrically conductive objects come near one another without touching, their electric fields interact to form capacitance. By detecting when the capacitance changes (e.g., increase, decreases) the mouse's electronics can determine when and where the finger and palm of the hand are touching. Any conventional form of capacitance sensing may be used, including but not limited to capacitive sensing methods as found in touch pads, key boards, and the like. The simplicity of capacitance allows for a great deal of flexibility in design and construction of the sensor arrangement (e.g., mutual capacitance sensing, capacitance to ground sensing, etc.).
In the illustrated embodiment, the sensor arrangement 186 includes a two layer grid of spatially separated electrodes or wires 190 and 192 that are connected to a microcontroller (not shown). The upper layer includes electrodes 190 in rows while the lower layer includes electrodes 192 in columns (e.g., orthogonal). As should be appreciated, when a portion of a hand nears the intersection of two electrodes 190 and 192, the capacitance at the electrodes 190 and 192 changes since the hand has very different dielectric properties than air. These changes can be used to determine the positions of the finger and/or palm when they grab the mouse 180. In some cases, the amount of capacitance to each of the electrodes 190 and 192 can be measured by the microcontroller when a portion of a hand nears the intersection of two electrodes 190 and 192 (e.g., sensing point). In other cases, capacitance from each of the row electrodes 190 to each of the column electrodes 192 can be measured by the microcontroller when a portion of a hand nears the intersection of two electrodes 190 and 192 (e.g., sensing point).
The signals generated at the sensing points 188 may be used to determine how the user is holding the mouse 180. By way of example and referring to
In one embodiment, the difference between a current hand signal (
In relative mapping, the difference at each particular contact patch area 196 is compared relative to the other particular contact patch areas 196. For example, if the contact patch area for the right finger grows more significantly than the contact patch area for the left finger between first and second signals then the particular button function may be a right click. Furthermore, if the contact patch area for the left finger grows more significantly than the contact patch area for the right finger between first and second signals then the particular button function may be a left click.
In absolute mapping, the mouse 180 includes one or more button zones that represent regions of the mouse 180 that when selected implement the particular button function associated with the button zone (e.g., right click, left click). The button zone having the contact patch area 196 with the most significant change between first and second hand signals is the one that is typically implemented. The user may customize the mouse 180 by setting the configuration of button zones before use. For example, the mouse 180 may be configured as a one button mouse, two button mouse, three button mouse or the like. The mouse 180 may also be configured with scrolling zones. The position and size of the button zones may also be customizable. For example, the mouse 180 may be configured with button zones on only the front or back of the mouse (e.g., left hand or right hand button) or on the side of the mouse (e.g., thumb button). The customization may be performed by the user and/or the mouse 180.
In another embodiment, the similarity between a baseline hand signal and a current hand signal may indicate the user's desire to implement a control function (e.g., gesturing). For example, if the baseline hand signal corresponds to a right click and the current hand signal is similar to the baseline hand signal then the mouse can implement a right click. The user may customize the mouse by setting the baseline hand signal before use (e.g., calibration).
In another embodiment, the similarity between a baseline hand signal and a current hand signal may also indicate the user type (e.g., handedness of the user or the identity of the user). For example, if the baseline hand signal corresponds to a left hand user and the current hand signal is similar to the baseline hand signal then the mouse knows that the user is left handed. The user may customize the mouse by setting the baseline hand signal before use (e.g., calibration).
The signals generated from the electrodes 212 may be used by the mouse to perform button functions as well as to determine the user type. For example, the electrodes 212 may generate a first group of signals for a right handed user and a second set of signals for a left handed user. As should be appreciated, right handed users typically place their fingers on the front and their palm on the back of the mouse while left handed users typically place their fingers on the back and the palm on the front of the mouse. Furthermore, the electrodes 212 may generate a different group of signals for each tilting action. These signals may be processed by the mouse system to determine what button function to implement for the tilting action. For example, when the mouse 200 is tilted to the front right, the signals may be used to generate a right click for a right handed user and when the mouse 200 is tilted to the front left, the signals may be used to generate a left click for a right handed user. Furthermore, when the mouse 200 is tilted to the back right, the signals may be used to generate a right click for a left handed user and when the mouse 200 is tilted to the back left, the signals may be used to generate a left click for a left handed user.
Because the mouse 200 does not produce a click for each tilt, it may include a tactile click generator electrically controlled for example using a solenoid actuator on the inside of the mouse housing. When the mouse (e.g., firmware) decides a click has been made, the plunger of the solenoid actuator taps a rib inside the mouse housing which provides tactile and audible feedback to the user (e.g., simulates a clicking action). A buzzer may also be used to give audio feedback.
It should be noted that a dual pivoting body is not a limitation. In some cases, the body may be configured to pivot about a single axis, i.e., pivoting about axis 206 is eliminated. In other cases, other movements other than pivoting may be implemented. Furthermore, the body may be configured to not move at all.
In one embodiment, block 226 includes determining the handedness of the user. In another embodiment, block 226 includes determining the actual user (e.g., Bob or Carol). The determination may be performed automatically or it may be selective, i.e., user initiated. Once the user is determined, the process flow proceeds to block 228 where the mouse is configured based on the user. In one embodiment, the motion axes of the mouse are configured based on the handedness of the user. In another embodiment, the button zones of the mouse are configured based on the handedness of the user. In other embodiments, the motion axes as well as the button zones are configured based on the actual user (e.g., Bob or Carol). The button zones may be based on relative mapping or absolute mapping.
Following block 228 the process flow proceeds to simultaneously occurring blocks 230 and 232. In block 230, the movement of the mouse is monitored. This may be accomplished with a position sensing device such as a track ball or optical sensor. In block 232, the hand action of the user is monitored. This may be accomplished by a touch sensing device that senses user touch and generates hand signals based on the user's touch. Following block 230, the process flow proceeds to block 234 where position signals are generated based on the mouse movement. For example, in the case of a Cartesian coordinate based system the position sensing device may generate X, Y signals. Following block 232, the process flow proceeds to block 236 where button signals are generated based on the hand action. For example a first hand signal may be compared to a second hand signal and differences or similarities therebetween can be used to determine what button signal to generate. After blocks 234 and 236, the position and button signals may be used to perform actions in a host system. For example, the position signals may be used to move a cursor and the button signals may be used to make selections in a graphical user interface.
The use step 264 generally begins at block at block 272 where a current hand signal is generated. Following block 272, the process flow proceeds to block 274 where the current hand signal is compared to the baseline hand signals stored in the user profile database. Following block 274, the process flow proceeds to block 276 where the baseline hand signal most similar to the current hand signal is selected. If there is no signal similar to the current signal then the user may be prompted to go through the calibration step 262. Following block 276, the process flow proceeds to block 268 where the mouse is configured according to the user settings associated with the selected baseline hand signal.
Following block 306, the process flow proceeds to block 308 where the motion axes are configured based on the handedness determined in block 306. Motion axes generally refer to which portion of the mouse will be used for button selection as well as which direction of mouse motion is positive X motion and which direction of mouse motion is positive Y motion. The direction of the motion axes are important if the mouse is rotated 180 degrees between left and right handed users as in the mouse configuration shown in
Thereafter, the process flow proceeds along two routes. The first route proceeds with block 310 where position signals are generated based on mouse movement. Thereafter in block 312, a position signal is sent to a host based on the mouse movement and the motion axis set in block 308. The second route proceeds with a relative mapping sequence including blocks 314-320. In block 314, a previous hand image is formed based on user touch. Following block 314, the process flow proceeds to block 316 where a current hand image is formed based on user touch. Thereafter, in block 318 a difference between the current hand image and the previous hand image is determined. Following block 318, the process flow proceeds to block 320 where a determination is made as to whether a click (e.g., button selection) was made by the user based on the difference. If a click or button selection was not made, then the process flow proceeds back to block 314. If a click of button selection was made then the process flow proceeds to block 322 where a button signal associated with the button selection is sent to the host.
The methods described above can be used alone or in various combinations. The methods may be implemented singularly or by a combination of hardware, software, and/or firmware. The methods can also be embodied as computer readable code on a computer readable medium. The computer readable medium is any data storage device that can store data, which can thereafter be read by a computer system. The computer readable medium can also be distributed over a network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.
While this invention has been described in terms of several preferred embodiments, there are alterations, permutations, and equivalents, which fall within the scope of this invention. It should also be noted that there are many alternative ways of implementing the methods and apparatuses of the present invention. It is therefore intended that the following appended claims be interpreted as including all such alterations, permutations, and equivalents as fall within the true spirit and scope of the present invention.
This application is a division of U.S. patent application Ser. No. 10/654,108 filed Sep. 2, 2003 now U.S. Pat. No. 7,808,749, the entire disclosure of which is incorporated herein by reference.
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| Number | Date | Country | |
|---|---|---|---|
| 20080297478 A1 | Dec 2008 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 10654108 | Sep 2003 | US |
| Child | 12189030 | US |
