For Handicapped User Patents (Class 341/21)
  • Patent number: 5734370
    Abstract: A universal computer control device for controlling an image on an image display device has a group of basic control signal input means for manipulating a displayed image and for relating the displayed image to the control device and optional control signals for controlling microhandlers and for simulating operation of various different devices such as aircraft, cars, bikes and sport equipment.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: March 31, 1998
    Inventor: Rafael Skodlar
  • Patent number: 5701123
    Abstract: A digital keypad for a controller of an electrical device includes keys which are circularly arranged in a clock face pattern. The keys are marked with numeric indicia in sequential numeric order from 1 to 12, each switch being radially spaced 30-degrees apart. Some of the numbered keys may be replaced with other symbols as desired. Tactile key-finding ridges emanate from the center of the circular key pattern, extending in the direction of each key. The keypad may be releaseably affixed to a trigger grip stand, comprising a planar base and a vertical handle having a trigger switch which when depressed transmits preselected signals to the electrical device.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: December 23, 1997
    Inventor: Thomas Samulewicz
  • Patent number: 5692517
    Abstract: A method and apparatus for assisting a user to control a device in response to a combination of electroencephalographic and electromyographic potentials. The user selects a number of reference frequencies in a range of from 0.5 Hz to 45 Hz defining a like number of control signals. A digital lock-in amplifier is used with a moving average time window filter to produce control signals which are presented to the user. Control system responsiveness is controlled by adjusting the lengths of the moving average time windows. A phase-locked loop is closed around each control signal and is used to track the shifting frequencies of the control signals. The user is able to sense and control changes in the magnitude and frequency of the control signals in the control of the device.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: December 2, 1997
    Inventor: Andrew Junker
  • Patent number: 5680158
    Abstract: A communication apparatus for a handicapped person, includes a plurality of first key switches for inputting character input data in a general input mode, a single second key switch for inputting character input data in a second key input mode, a character input device for inputting the character input data in the general input mode inputted by operating the plurality of first key switches or in the single key input mode inputted by operating the single second key switch, a character output device for outputting at least character output data which corresponds to the character input data inputted by the character input device, a mode selector for selecting the character input data input in the general input mode by the character input device or the character input data input in the single key input mode by the character input device, and a controller for controlling the operation of the character input device, the character output device, and the input mode selector.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: October 21, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Yoshida, Isamu Shimoda, Mikiharu Matsuoka, Yasuko Miyazaki, Masaaki Kanashiki
  • Patent number: 5659307
    Abstract: A keyboard assembly for a computer with movable keyboard pallets. The pallets are movable relative to each other between a compact stowing position and an extended operational position. A movement mechanism moves at least one of the pallets in a lateral direction relative to the other pallet and then towards the other pallet in a direction orthogonal to the lateral direction. The movement mechanism can be connected to the cover of the computer to automatically control movement of the pallets based upon position of the cover relative to a base of the computer. Thus, the pallets can be automatically moved from the compact stowing position, when the cover is closed, to the extended operational position when the cover is opened. Upon moving the cover from the open position to the closed position, the pallets are automatically moved from the extended operational position to the compact stowing position. The movement mechanism includes a drive arm with a spring section.
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: August 19, 1997
    Assignee: International Business Machines Corporation
    Inventors: John P. Karidis, Michael P. Goldowsky, Gerard McVicker
  • Patent number: 5638062
    Abstract: An input device is described for generating a keystroke signal. A dome shaped to conform to the shape of a human hand at rest is supported to slide along a generally planar base top. The position of the dome on the base top, which is divided into sectors, is sensed, each sector correlatable with a keystroke signal. A system is also provided for outputting two position signals that are then correlatable into a unitary keystroke signal.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: June 10, 1997
    Inventor: Peter J. McAlindon
  • Patent number: 5627530
    Abstract: A telecommunication device for the deaf includes a standard size computer keyboard and is operable to function either as a standard TDD or a standard computer input device. The device includes a housing with a computer keyboard having alpha, numeric and function keys mounted on the housing. A TDD communication interface receives telecommunications for the deaf from and transmits telecommunications for the deaf to a telephone line wherein the interface is mounted in the keyboard housing. A mode switch mounted on the housing is actuable to indicate operation of the device in one of a number of modes wherein a controller is responsive to the mode switch to echo keyboard inputs to either a first computer, a second computer or a TDD communication interface depending upon the mode of operation.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: May 6, 1997
    Assignee: Positron Industries, Inc.
    Inventors: Albert Israel, Roger Lasry, Jean F. Larivee
  • Patent number: 5600311
    Abstract: An environmental control system for the severely disabled provides a "pass through" mode that allows a system output to mimic or emulate a user controlled switch input. The pass through mode permits a single user controlled switch to be shared among multiple systems for the disabled. In the normal mode, the user controlled switch controls various control functions provided by the environmental control system. In the "pass through" mode, the environmental control system operates "transparently" and passes the switch closures through to an electronically-controlled switch that appears electrically like a manually actuated switch to control other equipment for the disabled. The pass through mode is exited upon user actuation of the user controlled switch for more than a programmed time period and/or automatically upon occurrence of certain events (e.g., telephone ringing detection).
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: February 4, 1997
    Assignee: Rice-Kelly Research & Engineering, Inc.
    Inventors: Richard F. Rice, David M. Kelly, Daryl L. Smith
  • Patent number: 5583478
    Abstract: A method for providing a realistic sense of touch in virtual reality by means of programmable actuator assemblies is disclosed. Each tactile actuator assembly consists of a number of individual actuators whose movement is controlled by a computer and associated drive electronics. When an actuator is energized, the rare earth magnet and the associated contactor, incorporated within the actuator, are set in motion by the opposing electromagnetic field of a surrounding coil. The magnet pushes the contactor forward to contact the skin resulting in the sensation of touch. When the electromagnetic field is turned off, the rare earth magnet and the contactor return to their neutral positions due to the magnetic equilibrium caused by the interaction with the ferrous outer sleeve. The small size and flexible nature of the actuator assemblies permit incorporation into a glove, boot or body suit.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: December 10, 1996
    Inventor: Ronald Renzi
  • Patent number: 5576706
    Abstract: Multiple keyboards (chord or standard format) are connected in a daisy chain fashion to a computer using only the keyboard port of the computer. The keyboard system has an input connector and an output connecter, wherein a child keyboard system that includes a plurality of keys corresponding to characters is connected to the input connector and one of a computer and a parent keyboard system that includes a plurality of keys corresponding to characters is connected to the output connector.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: November 19, 1996
    Assignee: Infogrip, Inc.
    Inventors: Darrin P. Daigle, John L. Hilburn
  • Patent number: 5552782
    Abstract: A hand mounted keyboard, having a pair of opposed keypads for receiving the fingers of the mounting hand between, the opposed keypads operable by opposed movements of those fingers. The keyboard also has a thumb operated keypad mounted on the exterior of the keyboard. The characters and functions are grouped into generally task related modes or lanes. The lanes are divided into blocks, each block having two rows of data, each of the rows corresponding to one of the opposed keypads. The lanes are chosen by activating a first key with the thumb, and a second key with the finger. The thumb operated key is activated to chose a relationship for mapping between blocks of data in each lane and the finger operated keys. The mapping relationships assign characters and functions by row and column to opposed keypads and fingers respectively.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: September 3, 1996
    Inventor: Martin E. Horn
  • Patent number: 5543787
    Abstract: A keyboard assembly for a computer with movable keyboard pallets. The pallets are movable relative to each other between a compact stowing position and an extended operational position. A movement mechanism moves at least one of the pallets in a lateral direction relative to the other pallet and then towards the other pallet in a direction orthogonal to the lateral direction. The movement mechanism can be connected to the cover of the computer to automatically control movement of the pallets based upon position of the cover relative to a base of the computer. Thus, the pallets can be automatically moved from the compact stowing position, when the cover is closed, to the extended operational position when the cover is opened. Upon moving the cover from the open position to the closed position, the pallets are automatically moved from the extended operational position to the compact stowing position.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: August 6, 1996
    Assignee: International Business Machines Corporation
    Inventors: John P. Karidis, Michael P. Goldowsky, Gerard McVicker
  • Patent number: 5541989
    Abstract: A method and apparatus for detecting the added functions of a telephone dialer by adding diodes to the IC circuit and using as part of the input pins such that the need for total number of input pins and thus the manufacturing costs of the IC are reduced. The method is executed by using the available keyboard input/output boards without increasing the need for extra input pins in order to detect whether there is any diode in existence that is connected among the input/output ports.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: July 30, 1996
    Assignee: United Microelectronics Corp.
    Inventors: Chi-Chang Wu, Dune-Fung Hsiou
  • Patent number: 5515044
    Abstract: A controller apparatus for controlling a device comprising a support having a surface with a wall extending therefrom and along a segment of the surface. A plurality of force sensing members are positioned in a predetermined arrangement adjacent to an inner surface of the wall of the support with each member generating a signal in response to a force applied to the member. An assembly for adaptable engagement with the force sensing members is translationally movable to selectively engage and transmit a translational force to the force sensing members to develop a signal for control of a function of the device.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: May 7, 1996
    Assignee: Sensormatic Electronics Corporation
    Inventor: Terry L. Glatt
  • Patent number: 5512892
    Abstract: A hand held control device formed as a rigid body adapted to be gripped and carried by a single hand of a user and comprising a plurality of control elements operable by the thumb or a finger of the user's hand gripping and carrying the body, a pointing stick and a chirality detector for sensing whether a right or left hand is gripping and carrying the body for controlling the flow of information to or from a computer.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: April 30, 1996
    Assignee: International Business Machines Corporation
    Inventors: Liam P. Corballis, Joseph D. Rutledge, Edwin J. Selker
  • Patent number: 5481265
    Abstract: A ergonomic customizeable user/computer interface system for wireless computer control. A hand-attachable user interface device transmits control information upon activation of switches on the interface device. A base interface device receives the transmissions, decodes the information and provides control signals to the computer. The interface system allows for security authorization control and multiple computer or LAN operations with each user interface device. Greater functionality is provided by the use of personality modules in the user interface device for different modes of operation.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: January 2, 1996
    Inventor: David C. Russell
  • Patent number: 5479163
    Abstract: A digital keypad for a controller of an electrical device includes keys which are circularly arranged in a clock face pattern. The keys are marked with numeric indicia in sequential numeric order from 1 to 12, each switch being radially spaced 30-degrees apart. Some of the numbered keys may be replaced with other symbols as desired. Tactile key-finding ridges emanate from the center of the circular key pattern, extending in the direction of each key. The keypad may be releaseably affixed to a trigger grip stand, comprising a planar base and a vertical handle having a trigger switch which when depressed transmits preselected signals to the electrical device.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: December 26, 1995
    Inventor: Thomas Samulewicz
  • Patent number: 5474082
    Abstract: A method and apparatus for assisting a user to control a device in response to a combination of electroencephalographic and electromyographic potentials. The user selects a number of reference frequencies in a range of from 0.5 Hz to 45 Hz defining a like number of control signals. A digital lock-in amplifier is used with a moving average time window filter to produce control signals which are presented to the user. Control system responsiveness is controlled by adjusting the lengths of the moving average time windows. A phase-locked loop is closed around each control signal and is used to track the shifting frequencies of the control signals. The user is able to sense and control changes in the magnitude and frequency of the control signals in the control of the device.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: December 12, 1995
    Inventor: Andrew Junker
  • Patent number: 5432510
    Abstract: An ambidextrous, single hand data management device that has been ergonomically optimized to facilitate multiple key per character input, chording. The device has an arrangement of multiple keys which are so situated that the device can be held in either the left or the right hand, by a large range of hand sizes, and data can be quickly and conveniently input, that is, any combination of keys can be quickly and conveniently actuated with a "Microwriting" chordic type of data input, without a hand strap and without dropping the device. The ergonomic arrangement of keys on the casing allows for the device to remain stationary relative to the palm of the hand while that hand is in a multiplicity of orientations. The device can serve as a primary data input device or as a data storage and retrieval device for things like inventory control, names and addresses or daily schedule reminders or, as a combination of all of these.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: July 11, 1995
    Inventor: Walter S. Matthews
  • Patent number: 5422640
    Abstract: This invention relates to a device to allow a handicapped person with limited or no use of the hands to use a personal computer. The device includes a base which includes an inclined support onto which a computer keyboard is positioned. A support arm extends generally upwardly therefrom and is articulated for inward and vertical pivotable movement. A pointer is mounted on the support arm which is adapted to be articulated horizontally so as to position the nose end thereof adjacent a computer key to be depressed. The pointer is manipulated by the face of the operator who turns his head in the direction in which he desires the pointer to horizontally move, and the pointer is actuated outwardly by imparting a breath into a breath port of the pointer. The breath is detected by a pressure sensor transducer which actuates a solenoid in order to extend the nose thereof to depress a desired computer keyboard key.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: June 6, 1995
    Assignee: North Carolina State University
    Inventor: Vincent L. Haley
  • Patent number: 5412189
    Abstract: A touch screen apparatus with tactile feedback is disclosed. Tactile information, such as Braille or other symbolic representations, is integrally connected to an area on the touch screen surface. This tactile information can be molded into the touch screen surface as part of its initial manufacturing process, or can be added later by making the tactile information our of epoxy or or by placing a plastic film containing the tactile information over the touch screen surface. The touch screen display can be part of a desktop or laptop computer, can be part of a computer system in a public information kiosk or automated teller machine application, or can be included as an information panel in stereo equipment, transportation equipment, etc.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: May 2, 1995
    Assignee: International Business Machines Corporation
    Inventor: Brian J. Cragun
  • Patent number: 5408044
    Abstract: A television remote control adaptor includes a protective housing for receiving the remote control unit and oversized pushbuttons for manipulating the remote control unit from outside of the adaptor. The television remote control is held in precise orientation of the adaptor by a spring retainer clip. An aperture at one end of the housing permits the infrared transmitters of the remote control unit to activate a television set. An open mesh is attached across the closed face of the housing adjacent to the remote control pushbuttons. Four or five adaptor buttons are attached to the outside of the mesh and held in place by a pair of leg protrusions that engage the mesh. A longer, thinner protrusion, also attached to the adaptor button, passes through the mesh and contacts the underlying remote control pushbuttons when the adaptor button is depressed by the user.
    Type: Grant
    Filed: January 12, 1993
    Date of Patent: April 18, 1995
    Assignee: Marvin Sandler
    Inventor: Alan M. Spiegel
  • Patent number: 5387895
    Abstract: A control apparatus which includes apparatus for storing a first digital code, apparatus for storing a second digital code, and apparatus for comparing the first and second digital codes, the apparatus for comparing including first and second generally dish shaped members that are dimensioned and configured for nesting relationship. In some forms of the invention the dish shaped members are each rotationally symmetrical. The first and second dish shaped members may each include a plurality of steps on the face thereof. At least one of the first and second dish shaped members includes a plurality of steps on the face thereof. The other of said first and second dish shaped members may includes a plurality of steps on the face thereof. The apparatus will often include means for conducting disposed respectively in contact with the conductive generally planar members. Some of the generally planar members may have tab portions for connection thereto.
    Type: Grant
    Filed: October 21, 1993
    Date of Patent: February 7, 1995
    Assignee: MagiCorp Inc.
    Inventors: Louis A. Keppner, Ramon L. Lecours
  • Patent number: 5374924
    Abstract: Disclosed is a computer audio interface having stereo and filtered sound effects to enable blind users to operate a graphical user interface. Stereo balance and incremental filtering are used along separate axes to guide a blind or visually impaired user within an area of a graphical user interface, particularly the client area of a window. As the pointer approaches the left boundary of the client area, the sounds representing the client area come more and more exclusively from the left audio channel. Likewise, when approaching the right boundary, the sound shifts to the right channel. Additionally, as the pointer is moved toward the top of the window client area, the pitch of the sound increases in stepwise fashion.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: December 20, 1994
    Assignee: International Business Machines Corporation
    Inventor: Frank A. McKiel, Jr.
  • Patent number: 5302970
    Abstract: A personal communicating device comprising both a base unit and a remote unit. The base unit is comprised of an alpha-numeric keyboard with recessed keys, a cradle, a super-twist screen, a printer, and an infrared transmitter. The remote unit is comprised of an infrared receiver and a display screen. A user types information on the base unit which is displayed on the base unit's screen. The same information is simultaneously transmitted and displayed by infrared transmission link to the remote unit and displayed on the remote unit's screen. The recessed keys make it physically impossible for the user to strike more than one key at a time while typing with one finger. The cradle allows the base unit to be removably attached to a variety of surfaces including the user's arm or an arm of a wheelchair.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: April 12, 1994
    Assignee: Abovo, Inc.
    Inventors: Susan L. Lakso, Michael A. Ceppetelli, David M. Kroll, Richard D. Rose
  • Patent number: 5287119
    Abstract: A device for controlling a cursor on a data terminal display screen. The device is in the form of a headset and includes an orientation sensor which provides an electrical signal related to the orientation of the device without it being adjacent to any fixed surface. The orientation sensor includes a hollow spherical housing having at least one light source/detector pair mounted opposingly in the inner wall, along an axis extending through the center point of the housing. The housing is half-filled with a transparent liquid having a specified viscosity and index of refraction and half-filled with air. Light beams emitted from the sources are refracted upon passing through the boundary between the air and the liquid. As the orientation sensor rotates with respect to the vertical axis, the changing refraction angle of the light beam causes the detector to sense changing intensities of light, which are representative of the angle of rotation.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: February 15, 1994
    Assignee: Wang Laboratories, Inc.
    Inventor: Donald E. Drumm
  • Patent number: 5281945
    Abstract: A control apparatus which includes apparatus for storing a first digital code, apparatus for storing a second digital code, and apparatus for comparing the first and second digital codes, the apparatus for comparing including first and second generally dish shaped members that are dimensioned and configured for nesting relationship. In some forms of the invention the dish shaped members are each rotationally symmetrical. The first and second dish shaped members may each include a plurality of steps on the face thereof. At least one of the first and second dish shaped members includes a plurality of steps on the face thereof. The other of said first and second dish shaped members may includes a plurality of steps on the face thereof.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: January 25, 1994
    Assignee: Magicorp, Inc.
    Inventors: Louis A. Keppner, Ramon L. Lecours
  • Patent number: 5234066
    Abstract: A power-assisted wheelchair is disclosed that is particularly well suited for use by a person capable of exerting some hand/arm force in attempting to propel the wheelchair while seated therein, but incapable of exerting sufficient force, at least in some instances, to achieve satisfactory overall non-assisted operation of the wheelchair. Power-assist is provided by an electrical power unit that includes a motor for driving each main wheel of the wheelchair, with the power unit being removable to facilitate folding of the wheel chair when not in use. Motor energization is initiated when the user exerts force on the hand rims, connected with the drive wheels, in an attempt to propel the wheelchair. Displacement of the handrim relative to the associated drive wheel caused by the user exerted force is sensed and an electrical signal is produced to cause motor energization, with structure and feedback circuitry also being included for enhancing the efficiency of the power assist thus provided.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: August 10, 1993
    Assignee: Staodyn, Inc.
    Inventors: Terry P. Ahsing, Joe M. Hopping, Alan R. Owen, Jerome C. Stenehjem
  • Patent number: 5233662
    Abstract: An oral controller and related method for lingual control of remote apparatus are disclosed. Preferably, the controller includes a mouthpiece having an intraoral structure and lingual transducer electronics including an array of photosensitive switches the light beams of which are selectively temporarily interruptible by the placement of the user's tongue in a light beam's path. A normally open electrical contact switch and associated circuitry including one or more batteries are provided for detecting closure of this switch when the mouthpiece is properly placed in the user's mouth, at which time controller circuitry within a separate housing is activated and the photosensitive switches are operated at a low, battery-saving duty cycle. Openings of the photosensitive switches are detected, and their sequence encoded and transmitted, e.g.
    Type: Grant
    Filed: November 5, 1991
    Date of Patent: August 3, 1993
    Inventor: Chris S. Christensen
  • Patent number: 5223828
    Abstract: Disclosed is a system and method that enables blind or visually impaired computer users to handle message boxes in a graphical user interface. When a message box first appears, the textual content of the box is announced audibly and an audible homing signal is produced. In the preferred embodiment, the homing signal is a tone whose pitch increases as the distance between the pointer and the message box decreases.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: June 29, 1993
    Assignee: International Business Machines Corporation
    Inventor: Frank A. McKiel, Jr.
  • Patent number: 5126731
    Abstract: A pneumatically-controlled, user-operated switch interface which allows a physically disabled person to operate electronic equipment such as a computer, television, video cassette recorder and a remote control includes apparatus providing at least one airway passage; first switching circuitry for producing a plurality of switching signals and having at least one pneumatuc switch responsive to air pressure in the at least one airway passage; second switching circuitry settable in first and second switch positions for selectively connecting each of the plurality of switching signals to selected inputs of the electronic equipment as the electrical input signals, and user-activated apparatus for setting the second switching circuitry in the first and second switch positions. The switch interface can operate a plurality of computer input devices to allow a physically handicapped person to use commercially available software packages.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: June 30, 1992
    Inventor: Jerry E. Cromer, Jr.
  • Patent number: 5068645
    Abstract: A device for controlling a cursor on a data terminal display screen. The device is in the form of a headset and includes an orientation sensor which provides an electrical signal related to the orientation of the device without it being adjacent to any fixed surface. The orientation sensor includes a hollow spherical housing having at least one light source/detector pair mounted opposingly in the inner wall, along an axis extending through the center point of the housing. The housing is half-filled with a transparent liquid having a specified viscosity and index of refraction and half-filled with air. Light beams emitted from the sources are refracted upon passsing through the boundary between the air and the liquid. As the orientation sensor rotates with respect to the vertical axis, the changing refraction angle of the light beam causes the detector to sense changing intensities of light, which are representative of the angle of rotation.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: November 26, 1991
    Assignee: Wang Laboratories, Inc.
    Inventor: Donald E. Drumm
  • Patent number: 4993308
    Abstract: An air responsive control forms the basis for a mouth-blown device having a series of pipes in side-by-side relation into which the user blows or sucks. Signals are produced to operate apparatus such as a music synthesizer for a typewriter or computer. Each pipe has at least a section of light transmitting material. Inside that section, movable actuator such as a ball moves out of a light path between a light source and a photo-sensitive responder by sucking on or blowing by an operator. When the ball blocks the light path there is now signal to the operated apparatus but when it moves out of the light path there is a signal. Both the light source and the photo-sensitive responder are outside the pipe, thus ensuring that there is no contact with saliva of any directly connected electrical part.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: February 19, 1991
    Inventor: Norman A. Villeneuve
  • Patent number: 4985692
    Abstract: A working station includes a keyboard for the input of data into a memory, the keyboard including cursor control keys. The working station is provided with a braille reading line and adjacent the braille reading line there are provided additional cursor control means adapted to be operated by a visually handicapped person without the orientation of the hand(s) with respect to the braille reading line being lost.
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: January 15, 1991
    Assignee: Vennootschap onder firma: ALVA
    Inventors: Jacob Breider, Arend R. Arends
  • Patent number: 4905001
    Abstract: Disclosed are various forms of hand-held communication devices which serve as alternatives to a keyboard and which, in addition, allow the user to receive communications via the sense of touch. Although not so limited, the device is well-adapted for use by persons who are speechless, deaf and speechless, or even blind, deaf and speechless. The present invention provides particularly compact and efficient finger movement actuated communication devices for individually responding to thrust and push motions of at least one finger of a person's hand. Thus, each finger can operate two switch elements, and the four fingers of a person's hand can operate eight switch elements in predetermined combinations suitable, for example, for communication in a binary code. In a first disclosed embodiment, a handle-like body supports eight switch actuators arranged as four pairs, with each of the pairs corresponding to a particular finger.
    Type: Grant
    Filed: October 8, 1987
    Date of Patent: February 27, 1990
    Inventor: Henry C. Penner
  • Patent number: 4836700
    Abstract: A data entry system comprising a one-handed keyboard having five data keys and five control keys which are used in combinations for entering data and control characters in the system. The system also comprises a cursor control assembly for controlling a cursor on a screen and controls for permitting a single keyboard to be operated with either the left or right hand.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: June 6, 1989
    Inventor: Paul S. Jensen