Data input pen-based information processing apparatus

Details Data input pen-based information processing apparatus Data input pen-based information processing apparatus

1993-09-10

1997-08-12

Harrell, Robert B.

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

345169, G06F 1300

Patent

active

056574592

ABSTRACT:
An information apparatus comprises a main apparatus and a subsidiary apparatus which are separable. The main and subsidiary apparatuses has electrical connectors which are connected substantially automatically when the two apparatuses are attached. The connectors are provided with covers which are movable in association with the attaching procedure. Thereby, the connectors can be kept clean and free from dust contamination or breakage, and the reliability of the information apparatus can be enhanced.

REFERENCES:
patent: 4927986 (1990-05-01), Daly
patent: 4969830 (1990-11-01), Daly et al.
patent: 5187645 (1993-02-01), Spalding et al.
patent: 5333116 (1994-07-01), Hawkins et al.
patent: 5408250 (1995-04-01), Bier
"Connector System Using Opto-Electronic Techniques To Avoid Contact Wear", IBM Technical Disclosure Bulletin, vol. 33, No. 3A, Aug. 1990, pp. 242-243 .

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