Television – Image signal processing circuitry specific to television
Patent
1994-04-11
1996-09-10
Metjahic, Safet
Television
Image signal processing circuitry specific to television
348715, 348721, 348718, 348719, 348555, H04N 514, H04N 964
Patent
active
055551971
ABSTRACT:
A coprocessor is incorporated in a processor comprising a CPU, an instruction cache, a data memory, a bus controller, an interruption control section and a DMA controller. This coprocessor has a parallel sum-of-products arithmetic operation section, a comparator, an I/O register section, and a sum-of-products factor register section. A frame memory, provided on the input side, stores MUSE or NTSC signals digitized per pixel. The DMA is in control of the transfer of data between the input-side frame memory and the data memory as well as the transfer of data between a frame memory provided on the output side and the data memory. Pixel data stored in the data memory is processed according to broadcasting systems by the switching of sum-of-products factors on the basis of software.
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Hasegawa Katsuya
Miyake Jiro
Ninomiya Kazuki
Nishiyama Tamotsu
Hsia Sherrie
Matsusita Electric Industrial Co. Ltd.
Metjahic Safet
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