Pattern display apparatus

Details Pattern display apparatus Pattern display apparatus

1981-04-30

1983-10-04

Masinick, Michael A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340723, 340750, G09G 116

Patent

active

044081979

ABSTRACT:
A display apparatus for use with a cathode-ray tube capable of displaying patterns in interlaced scanning and non-interlaced scanning operation modes, comprising a composite video signal synthesizer, a memory for storing pattern data, a mode setting circuit for the memory, a data selection signal generator and a raster line number signal generator. The memory stores data for relatively simple patterns such as alphabetical letters and those for relatively complicated patterns such as Chinese characters in individually particular areas in the memory addresses of these different areas are identified by a combination of the data selection signal and the raster line number signal supplied to the memory from the data selection signal generator and the raster line number signal generator. Accordingly, the apparatus is capable of displaying both relatively simple and relatively complicated patterns with satisfactory resolution and with a relatively small-scale structure.

REFERENCES:
patent: 4129860 (1978-12-01), Yonezawa
patent: 4199757 (1980-04-01), Ichimi
patent: 4308532 (1981-12-01), Murphy
patent: 4321599 (1982-03-01), Yoshiba

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