Coded data generation or conversion – Digital code to digital code converters – To or from bit count codes
Patent
1996-08-28
1998-05-12
Young, Brian K.
Coded data generation or conversion
Digital code to digital code converters
To or from bit count codes
341 59, 341 67, H03M 740
Patent
active
057512329
ABSTRACT:
A high-efficiency encoding apparatus having a data division circuit which applies 1-dimensional scanning to the orthogonal-transformed data obtained by applying orthogonal transformation to blocked digital data in the unit of block and divides the data into run-length data and coefficient data, an encoding circuit which applies run-length encoding to the divided run-length data by employing data of the highest probability of occurrence (for example 0), and an encoding circuit which applies run-length encoding to the divided coefficient data by employing data of the highest probability of occurrence (for example 1), thereby reduces the amount of the digital data.
REFERENCES:
patent: 4704628 (1987-11-01), Chen et al.
patent: 5166987 (1992-11-01), Kageyama
patent: 5291282 (1994-03-01), Nakagawa et al.
patent: 5337087 (1994-08-01), Mishima
patent: 5432555 (1995-07-01), Park
IEEE Transactions on Consumer Electronics, "An Experimental Digital VCR with 40 MM Drum, Single Actuator and DCT-Based Bit-Rate Reduction", vol. 34, No. 3, pp. 597-605 (Aug. 1988).
Inoue Sadayuki
Ishimoto Junko
Onishi Ken
Mitsubishi Denki & Kabushiki Kaisha
Young Brian K.
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