Coded data generation or conversion – Digital code to digital code converters – To or from bit count codes
Patent
1997-01-24
1998-11-24
Williams, Howard L.
Coded data generation or conversion
Digital code to digital code converters
To or from bit count codes
341 50, 341 59, 341 74, 341 87, H03M 746
Patent
active
058413790
ABSTRACT:
A method for compression of digital data in a computer having a processor and a memory, wherein a group of consecutive bits having the same binary value is represented by a result number corresponding to the number of the consecutive bits. The method involves the following steps. A block of digital data to be compressed is provided. A bit detect selection parameter determines a bit value to be counted for counting consecutive bits. The processor is instructed to count from a first end of the block of digital data toward a second end of the block of digital data the number of consecutive bits having the bit value determined by the bit detect selection parameter. The number of bits so counted is stored, and the bit detect selection parameter is toggled. The processor is then instructed to count from the last bit counted toward the second end of the block of digital data the number of bits having the bit value determined by the current bit detect selection parameter. The foregoing steps are repeated, with successive numbers being stored representing the number of bits counted in successive counts as successive stored result numbers, until all bits in the block of digital data are counted.
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Seshan Natarajan
Simar, Jr. Laurence R.
Donaldson Richard L.
Kesterson James C.
Moore J. Dennis
Texas Instruments Incorporated
Williams Howard L.
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