Computer graphics processing and selective visual display system – Display peripheral interface input device
Patent
1992-02-20
1999-12-21
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Display peripheral interface input device
345157, 345158, 382313, G09G 500
Patent
active
RE036455&
ABSTRACT:
[A scanning and digitizing device where the same photodetectors are used in a scanning mode and in a digitizing mode. In the scanning mode graphic information is scanned. In the digitizing mode coordinate positions of a stylus is determined. The photodetectors are used in the imaging portion of this device which imaging portion is a rangefinder in the digitizing mode.]
A combination scanning and digitizing device is described in which the same photodetectors are cooperatively used to scan graphic information on paper or other planar material and also to determine the position of a stylus. Stylus position detection is by means of a rangefinder.
REFERENCES:
patent: 3337860 (1967-08-01), O'Hara Jr.
patent: 3539995 (1970-11-01), Brandt
patent: 3613066 (1971-10-01), Cooreman
patent: 3618029 (1971-11-01), Graven
patent: 3673579 (1972-06-01), Graven
patent: 3786181 (1974-01-01), Pear, Jr.
patent: 4078151 (1978-03-01), McNeary
patent: 4205304 (1980-05-01), Moore
patent: 4292621 (1981-09-01), Fuller
patent: 4430526 (1984-02-01), Brown et al.
patent: 4464652 (1984-08-01), Lapson et al.
patent: 4517559 (1985-05-01), Deitch et al.
patent: 4550250 (1985-10-01), Mueller et al.
patent: 4553842 (1985-11-01), Griffin
patent: 4688933 (1987-08-01), Lapeyre
patent: 4704698 (1987-11-01), Reiniger
patent: 4707109 (1987-11-01), Kanne et al.
patent: 4743974 (1988-05-01), Lockwood
patent: 4788587 (1988-11-01), Bitoh
patent: 4816921 (1989-03-01), Akiyama et al.
patent: 4949079 (1990-08-01), Loebner
"Input for Computer Graphics Display", by A. Spiridon,
Western Electric Technical Digest , No. 22, Apr. 1971 p. 39.
"Image Transducer for a Typewriter", by J. C. Edwards,
IBM Technical Disclosure Bulletin, vol. 23 No. 7B, Dec. 1980.
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