This application claims the benefit of provisional patent application number 477/CHE/2009 titled “Portable Wearable Input Apparatus”, filed on Mar. 4, 2009 in the Indian Patent Office.
The specification of the above referenced patent application is incorporated herein by reference in its entirety.
This invention, in general, relates to input technologies. More particularly, this invention relates to a portable wearable input apparatus for furnishing input to one or more devices.
Persons suffering from cerebral palsy are most often unable to use a computer keyboard as they lack precision and control of their hands and fingers to press the keys of the keyboard. The available input devices require persons with disabilities to move their arms, legs, head, etc., to operate a switching device, which in turn help the disabled persons to operate a device such as a computer. Some vendors have developed wider diameter switching devices for persons with disabilities. These switching devices are either placed on a desk, table, a stand, or on mountings. This requires the disabled persons to somehow try and reach out to these switching devices, thereby expecting them to move their limbs. Persons suffering from cerebral palsy or spastic quadruparesis, find it very difficult to operate these switching devices due to the effort involved in moving their limbs to operate these switching devices.
In some cases, switching devices are positioned on a glove for registering keystrokes by contact with a person's fingers. However, the glove with finger sheaths provides a minimal surface area, for example, the finger area for placement of switching devices. Therefore, there is a need for a wearable input apparatus that provides a wider area for positioning multiple switching devices for registering keystrokes. Moreover, there is a need for a wearable input apparatus that enables flexible movement of a wearer's thumb over the fingers for contacting the switching devices and registering the keystrokes.
Furthermore, persons suffering from motor disabilities are typically unable to play games on computers or gaming consoles due to an inability to use conventional game controllers. Therefore, there is a need for creating a game controller by selectively positioning easily accessible game components on a wearable input apparatus.
Hence, there is a need for a portable wearable input apparatus that makes it easier for disabled persons to operate a device, for example, a computer and its peripherals such as a keyboard, mouse, joystick, a game controller, etc., with minimal movement of their limbs. Furthermore, there is a need for a portable wearable input apparatus that provides an increased surface area for mounting keystroke registering devices and other devices, and that enables flexible movement of a wearer's thumb for operating the devices.
This summary is provided to introduce a selection of concepts in a simplified form that are further described in the detailed description of the invention. This summary is not intended to identify key or essential inventive concepts of the claimed subject matter, nor is it intended for determining the scope of the claimed subject matter.
The portable wearable input apparatus and method disclosed herein addresses the above stated need for furnishing input to one or more devices. The portable wearable input apparatus disclosed herein makes it easier for disabled persons to operate a device, for example, a computer and its peripherals such as a keyboard, mouse, joystick, a game controller, etc. with minimal movement of their limbs. The portable wearable input apparatus disclosed herein also provides an increased surface area for mounting devices, and enables flexible movement of a wearer's thumb for contacting and operating the devices.
The portable wearable input apparatus disclosed herein comprises a wearable unit, multiple keystroke registering units, and a mounting unit. The wearable unit is configured to conform to a body part of a wearer, for example, a wearer's hand. The wearable unit comprises a chamber for accommodating the wearer's body part. In an embodiment, the wearable unit is shaped as a mitten, free from individual finger sheaths for increasing the surface area for mounting the keystroke registering units. The wearable unit shaped as the mitten encloses at least four fingers of the wearer. In another embodiment, the wearable unit comprises an opening for inserting at least four fingers of the wearer and allowing free movement of the four fingers of the wearer for activating the keystroke registering units. In another embodiment, the wearable unit is a finger band wearable around the fingers of the wearer. The keystroke registering units are mounted on the finger band. A thumb opening is disposed alongside the chamber of the wearable unit for passing the wearer's thumb through the thumb opening. The thumb opening is positioned on either side of the chamber to enable the wearer to use the wearable unit on either hand. The wearable unit is free of a thumb sheath for enabling flexible movement of the wearer's thumb through the thumb opening for activating the keystroke registering units.
The keystroke registering units are detachably disposed on the chamber of the wearable unit for enabling the wearer to register keystrokes. The keystroke registering units are, for example, switches, sensors, etc. for detecting keystrokes registered by the wearer. The wearer registers the keystrokes by activating the keystroke registering units using the wearer's thumb. The mounting unit is in electric communication with the keystroke registering units. The mounting unit mechanically supports the keystroke registering units and transmits the registered keystrokes to one or more devices, for example, a computing device such as a computer. The mounting unit and the keystroke registering units are detachably connected to each other and to the wearable unit. The portable wearable input apparatus disclosed herein further comprises multiple removable electrical connectors in electric communication with the mounting unit for transmitting the registered keystrokes from the mounting unit to the devices by, for example, wired communication, wireless communication, or a combination thereof. The portable wearable input apparatus thereby furnishes the transmitted keystrokes as input to the devices.
In an embodiment, the wearable unit of the portable wearable input apparatus comprises a mounting section disposed on multiple locations on the wearable unit for mounting one or more devices, for example, an optical mouse, a joystick, etc. A controller, for example, a game controller, may be created on the portable wearable input apparatus by selectively connecting the keystroke registering units and one or more devices on the wearable unit.
The foregoing summary, as well as the following detailed description of the invention, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, exemplary constructions of the invention are shown in the drawings. However, the invention is not limited to the specific methods and instrumentalities disclosed herein.
The wearable unit 101 exemplarily illustrated in
The thumb opening 101b allows the wearer's thumb 103 to pass through the thumb opening 101b. The wearable unit 101 is free of a thumb sheath for enabling flexible movement of the wearer's thumb 103 through the thumb opening 101b for activating the keystroke registering units 201. The thumb 103 outside the wearable unit 101 is uncovered or unobstructed by any fabric or wearable material. The uncovered thumb 103 may be used more efficiently and accurately by the wearer since the thumb 103 is not obstructed.
The portable wearable input apparatus 100 further comprises removable electrical connectors 102 in electric communication with a mounting unit 301 that mechanically supports the keystroke registering units 201, for transmitting the registered keystrokes from the mounting unit 301 to one or more devices, for example, computers, laptops, mobile devices, personal digital assistants (PDAs), gaming devices, and other interactive educational and entertainment devices, etc. as disclosed in the detailed description of
The keystroke registering units 201 may be used by the wearer by simply moving the thumb 103 around to access the keystroke registering units 201. The wearer does not need to move any limbs or other parts of the body to use the keystroke registering units 201. The wearer also does not need to bend fingers to access the keystroke registering units 201, thereby allowing ease of operation of the keystroke registering units 201 by the wearer. As an example, 5 keystroke registering units 201 may be provided on a single wearable unit 101 as exemplarily illustrated in
In an embodiment, the keystroke registering units 201 are, for example, switches. The keystrokes are registered on key press of one or more switches. The switches are, for example, tact switches, membrane switches, snap action switches, optical switches, ultra miniature toggle switches, foot actuated air switches, photoelectric switches, etc. In another embodiment, the keystroke registering units 201 are, for example, sensors (not shown) for sensing the motion of the thumb 103 without the wearer having to press any switches. The sensors are, for example, pressure sensors, magnetic sensors, light sensors, infrared (IR) sensors, motion sensors, gyro sensors, temperature sensors, bending sensors, touch sensors, etc. The sensors may be helpful to patients who are unable to press down on the switches to use them. In such a case, the tact switches may be replaced by sensors. Alternatively, the sensors may also be provided in addition to the tact switches. The position, sensitivity, and functions of the sensors are configured differently for each wearer depending on the condition of the wearer.
The wearable unit 101 may comprise a flexible padded area 302 on the inner surface of the chamber 101a corresponding to the area between the fingers and the palm of the hand for providing a stable surface or platform to mount the switches. Therefore, when the switches are pressed, the switches do not tend to slip away from their initial position. The flexible padded area 302 is useful to cerebral palsy patients as finger movement is highly erratic and absence of the flexible padded area 302 would cause the switches to slip from their initial positions on the wearable unit 101. The flexible padded area 302 enables positioning of switches on areas of the wearable unit 101 between or around the fingers and the palm of the hand for accommodation of additional switches at positions convenient for the wearer.
Each of the keystroke registering units 201 may be electrically connected to a mounting unit 301. The mounting unit 301 mechanically supports the keystroke registering units 201. The mounting unit 301 is, for example, a printed circuit board (PCB). The PCB may be mounted on the flexible padded area 302 for providing flexibility of positioning and mounting of the keystroke registering units 201 anywhere around the fingers. The flexible padded area 302 also provides a firm base, so that the keystroke registering units 201 do not slip from their original, intended place. The mounting unit 301 is electrically connected to the keystroke registering units 201 within the chamber 101a of the wearable unit 101 for transmitting the registered keystrokes to one or more devices. The registered keystrokes are transmitted to one or more devices by, for example, wired communication, wireless communication, or a combination thereof.
The electrical connectors 102 are, for example, audio connectors 102. The audio connectors 102 may be provided on the wearable unit 101 at the wrist level of the wearer. The audio connectors 102 comprise, for example, male connectors 102b for plugging into the female connectors 102a for transmitting the registered keystrokes. An external view and an internal view of the electrical connectors 102 are exemplarily illustrated in
The electrical connectors 102 may be used with a universal serial bus (USB) switch interface 401 which plugs into a USB port on any of the devices and converts the registered keystrokes in the electrical connectors 102 to a USB compatible format. The connection of the keystroke registering units 201 on the mounting unit 301 to the USB switch interface 401 via the electrical connectors 102 is exemplarily illustrated in
The electrical connectors 102 are also removable from the wearable unit 101 when not in use. The electrical connectors 102 can be removed from the wearable unit 101 so that the electrical connectors 102 do not obstruct the wearer's hand during insertion into the wearable unit 101.
The USB interface 401 comprises a processing unit 401a for processing the transmitted keystrokes. The processing unit 401a comprises multiple microchips. The microchips may be specialized keyboard microcontrollers, for example, Intel® 83C51KB, or general purpose microcontrollers, for example, Intel® 8051, programmed for use with a keyboard interface. The registered keystrokes are mapped to a keypad matrix interfaced with the processing unit 401a. The keypad matrix is, for example, an 8×8 matrix or a 16×16 matrix. Each keystroke is mapped to a unique combination of row number and column number in the keypad matrix. The processing unit 401a reads the unique combination of each keystroke and generates key codes corresponding to the unique combinations of the keystrokes.
The portable wearable input apparatus 100 may further comprise a touchpad (not shown) mounted on the wearable unit 101 for enabling the wearer to control a pointer on any of the devices. For example, the wearer may use the touchpad to control a mouse pointer on a computer 601. The portable wearable input apparatus 100 further comprises, for example, switches which may operate like a mouse or a joystick for enabling the wearer to control the pointer or provide directional input to the devices. The wearable unit 101 comprises a mounting section 602 disposed on different locations on the wearable unit 101 for mounting and connecting one or more devices, for example, a computer mouse, a joystick, etc. The keystroke registering units 201, the touchpad, and the joystick may further be used in any combination to create, for example, a game controller on the wearable unit 101. Creating a game controller on the wearable unit 101 enables persons suffering from motor disabilities to play games on computers or gaming consoles. The game controller may be created on the portable wearable input apparatus 100 by selectively connecting the keystroke registering units 201 and different devices on the wearable unit 101. Furthermore, wireless remote control devices enabling the wearer to control different devices, for example, television (TV) sets, radios, digital versatile disc (DVD) players, etc. may also be provided on the portable wearable input apparatus 100. Hence, the portable wearable input apparatus 100 provides the wearer with motor disabilities access to a many different types of devices, including, for example, computers, PDAs, gaming consoles, TV sets, radios, DVD players, etc.
In addition to use by persons of motor disabilities, the portable wearable input apparatus 100 is used, for example, to operate toys, electronic devices, gaming devices, remote controlled devices, health and fitness equipment, educational equipment for normal as well as disabled or differently abled persons, etc. The portable wearable input apparatus 100 is also used in physical based robotics applications and any other applications or apparatuses that require switching. The portable wearable input apparatus 100 further provides tactile feedback to the wearer upon activation of the keystroke registering units 201. The tactile feedback provided may, for example, be in the form of a vibration.
The portable wearable input apparatus 100 enables a wearer suffering from motor disabilities, for example, cerebral palsy, to register an average of about 30 to 50 keystrokes per minute. However, the number of keystrokes registered by each wearer may vary significantly from the average depending on the condition the wearer suffers from and the natural disposition of the wearer. The average of 30 to 50 keystrokes per minute may be regarded as a considerably high speed of operation of the keystroke registering units 201 by the wearer with motor disabilities.
The foregoing examples have been provided merely for the purpose of explanation and are in no way to be construed as limiting of the present invention disclosed herein. While the invention has been described with reference to various embodiments, it is understood that the words, which have been used herein, are words of description and illustration, rather than words of limitation. Further, although the invention has been described herein with reference to particular means, materials and embodiments, the invention is not intended to be limited to the particulars disclosed herein; rather, the invention extends to all functionally equivalent structures, methods and uses, such as are within the scope of the appended claims. Those skilled in the art, having the benefit of the teachings of this specification, may effect numerous modifications thereto and changes may be made without departing from the scope and spirit of the invention in its aspects.
Number | Date | Country | Kind |
---|---|---|---|
477/CHE/2009 | Mar 2009 | IN | national |