Coded data generation or conversion – Digital code to digital code converters – To or from bit count codes
Patent
1996-02-21
1998-04-07
Gaffin, Jeffrey A.
Coded data generation or conversion
Digital code to digital code converters
To or from bit count codes
341 50, H04N 1104
Patent
active
057369453
ABSTRACT:
A zero-run developing circuit for performing a zero-run developing process for placing zeros represented by a run between first non-zero data and second non-zero data of a block of a predetermined number of run-length signals, each of which is composed of the level of the value of non-zero data and the run that is the number of zero-data followed by the non-zero data is disclosed, that comprises a latch circuit for latching the levels of the predetermined number of the non-zero data, a first write position generating circuit for generating a first latch position of the latch circuit at which the first non-zero data is written corresponding to a first run length signal, and a second write position generating circuit for generating a second latch position of the latch circuit at which the second non-zero data is written corresponding to the first run-length signal and a second run-length signal.
REFERENCES:
patent: 5363097 (1994-11-01), Jan
patent: 5369045 (1994-11-01), Choi et al.
patent: 5369405 (1994-11-01), Choi et al.
Kinouchi Shigenori
Sawada Akira
Gaffin Jeffrey A.
Jean-Pierre Peguy
NEC Corporation
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