Bibliographic data: US5521596 (A) ― 1996-05-28


Analog input device located in the primary typing area of a keyboard  

No documents available for this priority number.
Page bookmark US5521596 (A)  -  Analog input device located in the primary typing area of a keyboard
Inventor(s): SELKER EDWIN J [US]; RUTLEDGE JOSEPH D [US] +
Applicant(s): LEXMARK INT INC [US] +
Classification:
- international: G06F3/023; G06F3/033; G06F3/048; H01H25/04; (IPC1-7): H03K17/94
- cooperative:
Application number: US19920915704 19920729 
Priority number(s): US19920915704 19920729 ; WO1990US06831 19901129


Abstract of  US5521596 (A)


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PCT No. PCT/US90/06831 Sec. 371 Date Jul. 29, 1992 Sec. 102(e) Date Jul. 29, 1992 PCT Filed Nov. 29, 1990 PCT Pub. No. WO92/09996 PCT Pub. Date Jun. 11, 1992.A sensor device is placed either underneath a key cap of a key on a keyboard or in between two keys on a keyboard so that cursor movement may be carried out from the keyboard itself. If the sensor device is placed underneath a key cap, then the key cap is a manual cursor controller. If, on the other hand, the sensor device is placed in between two keys, a joystick is used as a manual cursor controller.