US Patent No: 4,931,781

Number of patents in Portfolio can not be more than 2000

Cursor movement control key switch

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Importance

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Abstract

A cursor movement control key switch for controlling movement of a cursor on a display screen of a CRT or the like requires only one key. Operation of a single key allows both control of the direction of the cursor, and control of brightness of the display, volume level of sounds at a speaker, a display size of the cursor or the like. A CPU periodically detects the states of signals at terminals corresponding to contacts disposed in the key switch so as to produce signals to perform the above control operations. The key switchy provides improved operability.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CANON KABUSHIKI KAISHATOKYO49710

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyakawa, Akira Yokohama, JP 37 1038

Cited Art

Patent Info (Count) # Cites Year
 
KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO (1)
4,475,015 Multiposition switch 8 1982
 
SUPERIOR HOLDINGS OF AMERICA, INC. (1)
4,382,166 Joystick with built-in fire button 37 1981
 
XEROX CORPORATION (1)
4,313,113 Cursor control 131 1980

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
GATEWAY, INC. (4)
5,881,318 Keyboard audio controls for integrated CD-ROM players 17 1996
5,990,872 Keyboard control of a pointing device of a computer 31 1996
6,078,312 Pointing device with absolute and relative positioning capability 11 1997
7,079,112 Pointing device with absolute and relative positioning capability 2 2000
 
PALM, INC. (3)
8,233,948 Slider assembly for a housing of a mobile computing device 0 2007
8,150,482 Mobile computing device with moveable housing segments 2 2008
8,200,298 Keypad housing configuration for a mobile computing device 2 2008
 
HUNTER DIGITAL, LTD. (2)
5,694,152 System for steering an electronically responsive device 7 1995
5,812,114 System for steering an electronically responsive device 25 1997
 
INCONTROL SOLUTIONS, INC. (2)
5,583,303 Transducer array 17 1995
5,578,765 Transducer array 2 1995
 
TRANSPACIFIC PLASMA, LLC (2)
5,431,064 Transducer array 14 1992
6,040,821 Cursor tracking 24 1993
 
COPPER, JACK (1)
5,485,171 Hand held computer input apparatus and method 71 1994
 
DATAHAND SYSTEMS, INC. (1)
D362425 Switch assembly 0 1993
 
DELL USA, L.P. (1)
5,485,614 Computer with pointing device mapped into keyboard 21 1994
 
FUJITSU COMPONENT LIMITED (1)
5,504,502 Pointing control device for moving a cursor on a display on a computer 63 1995
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
5,764,219 Controller for improved computer pointing devices 46 1995
 
INVENTEC APPLIANCES CORP. (1)
7,898,440 Keyboard for a handheld electronic device 3 2007
 
KEY TRONIC CORPORATION, INC. (1)
5,455,556 Single station cursor device suitable for keyboards 12 1991
 
MAN MACHINE INTERFACE TECHNOLOGIES LLC, A CALIFORNIA LIMITED LIABILITY (1)
6,069,614 Man machine interface via display peripheral 32 1996
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
7,116,313 Electronic apparatus and operation device for operating the apparatus 1 2003
 
MINEBEA CO., LTD. (1)
6,359,613 Pointing stick having chip resistors 30 1998
 
MITSUKU DENSHI KOGYO KABUSHIKI KAISHA (1)
6,689,967 Slide switch 7 2002
 
ROBICON SYSTEMS (1)
5,361,083 Data input device and method 12 1993
 
SATO, KOUJI (1)
5,850,212 System for changing modes and cursor appearance by a single button 13 1997
 
SEXTANT AVIONIQUE (1)
5,790,097 Control device that can be used to designate and move an object on a screen 1 1996
 
SHAR-SEC COMPANY, LLC (1)
5,563,629 Device for pointing the cursor on the screen of interactive systems 71 1994
 
TANDBERG DATA STORAGE AS (1)
5,621,436 Keyboard with integrated mouse for data entry and control 12 1991
 
THE CHAMBERLAIN GROUP, INC. (1)
5,790,102 Pressure sensitive computer mouse 42 1996
 
UNICOMP, INC. (1)
5,521,596 Analog input device located in the primary typing area of a keyboard 52 1992
 
VALEO CLIMATISATION (1)
5,867,002 Electromechanical device with variable resistance circuit for controlling a load, particularly of an electric motor 1 1996
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (5)
5,186,555 Key arrangement for word processor or the like electrode instrument or machine 11 1991
5,309,172 Computer data and command entry device 14 1991
5,400,054 Manually operable device for indicating position on a display screen 5 1993
5,473,345 Device incorporating a mouse, for indicating position on a display screen 5 1994
6,489,948 Computer mouse having multiple cursor positioning inputs and method of operation 26 2000