Input unit for a computer

Details Input unit for a computer Input unit for a computer

1995-06-30

1998-03-10

Chow, Dennis-Doom

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

345179, 345156, G09G 500

Patent

active

057266859

ABSTRACT:
An input unit for a computer has a housing with a transparent plate at one side thereof over which an input element is movable. The housing contains a camera which identifies the position of the input element and converts this position into a position output signal. An evaluation unit converts the position output signal into control signals for the computer according to a mouse protocol. The input unit can thus be used to control the computer in a manner which mimics the control of a computer using a conventional mouse, but avoids the disadvantages associated with conventional mouse control. The input element may be an element specifically dedicated for that purpose, or may be a tool which the user happens to have available, or may simply be the finger of a user.

REFERENCES:
patent: 3825730 (1974-07-01), Worthington, Jr. et al.
patent: 3885096 (1975-05-01), Inuiya
patent: 4490607 (1984-12-01), Pease et al.
patent: 4561017 (1985-12-01), Greene
patent: 4812833 (1989-03-01), Shimauchi
patent: 4883926 (1989-11-01), Baldwin
patent: 5483261 (1996-01-01), Yasutake
patent: 5491495 (1996-02-01), Ward et al.
patent: 5530456 (1996-06-01), Kokubo

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