U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Computer system with keyboard and pointing device interface for managing device input codes

Patent 5898425 Issued on April 27, 1999. Estimated Expiration Date: Icon_subject February 28, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Method and apparatus for selecting a keyboard on a computer system
Patent #: 5278958
Issued on: 01/11/1994
Inventor: Dewa

Personal computer system allowing selective use of built-in and external keyboards by means of selector
Patent #: 5341316
Issued on: 08/23/1994
Inventor: Nishigaki

Pointing device and method of control of same
Patent #: 5432530
Issued on: 07/11/1995
Inventor: Arita, et al.

Keyboard controller state machine
Patent #: 5459462
Issued on: 10/17/1995
Inventor: Venkidu, et al.

Data input controller for inhibiting and enabling input
Patent #: 5465083
Issued on: 11/07/1995
Inventor: Okamoto

Integrated pointing and signaling device
Patent #: 5473347
Issued on: 12/05/1995
Inventor: Collas, et al.

Method for managing the input codes from keyboard and pointing device
Patent #: 5574891
Issued on: 11/12/1996
Inventor: Hsu, et al.

Portable computer having dedicated register group and peripheral controller bus between system bus and peripheral controller
Patent #: 5613135
Issued on: 03/18/1997
Inventor: Sakai, et al.

Coordinate input device Patent #: 5673066
Issued on: 09/30/1997
Inventor: Toda, et al.

Inventor

Application

No. 608196 filed on 02/28/1996

US Classes:

345/168, Including keyboard361/827, With interconnecting cable708/142Including specific keyboard-type information entry

Examiners

Primary: Brier, Jeffery
Assistant: Lewis, David

Attorney, Agent or Firm

International Classes

G09G 005/00
H02B 001/20
G06F 003/00

Foreign Application Priority Data

1995-03-03 JP

Abstract

A connector mounted on a system board has terminals the number of which corresponds to the total sum of key matrix control signal lines and pointing stick control signal lines. The key matrix control signal lines and pointing stick control signal lines are connected together to the connector. Both a keyboard interface and a pointing stick interface can thus be achieved by the single connector, resulting in improvement in mounting efficiency, decrease in cost and simplification in assembly process.

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