Title:
DIGITAL EDGE SUPER GENERATOR
Document Type and Number:
WIPO Patent Application WO/1987/002209
Kind Code:
A1
Abstract:
A circuit (31) for calculating a vertical edge width has a plurality of delay circuits (31a to 31h) connected in series, each of which having a delay time within a horizontal period. A circuit for calculating a horizontal edge width has a plurality of single-picture element delay circuits (32a to 32h) corresponding to the above edge widths to obtain horizontal distances between an input digital super key signal and raster positions. The minimum value of the plurality of euclidean distances between the digital super key signal and the raster positions obtained from ROMs (33a to 33s) from the vertical and horizontal distances obtained by these circuits is output as the actual euclidean distance from a detector (34).
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Inventors:
SHINOHARA NOBUTAKA (JP)
HIRAKAWA SHUJI (JP)
MINAMI AKIHIKO (JP)
TANAKA KOICHI (JP)
HIRAKAWA SHUJI (JP)
MINAMI AKIHIKO (JP)
TANAKA KOICHI (JP)
Application Number:
PCT/JP1983/000204
Publication Date:
April 09, 1987
Filing Date:
June 24, 1983
Export Citation:
Assignee:
SHINOHARA NOBUTAKA (JP)
HIRAKAWA SHUJI (JP)
MINAMI AKIHIKO (JP)
TANAKA KOICHI (JP)
HIRAKAWA SHUJI (JP)
MINAMI AKIHIKO (JP)
TANAKA KOICHI (JP)
International Classes:
G06T17/00; H04N5/278; G09G5/36; G09G5/377; H04N5/262; H04N5/445; (IPC1-7): H04N5/22
Foreign References:
JPS5248668Y2 | 1977-11-05 | |||
JPS5242330B2 | 1977-10-24 | |||
JPS5321812B2 | 1978-07-05 | |||
JPS49111543A | 1974-10-24 | |||
JPS4421763Y1 | 1969-09-16 |
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