Television – Bandwidth reduction system – Data rate reduction
Patent
1995-03-08
1998-12-15
Chin, Tommy P.
Television
Bandwidth reduction system
Data rate reduction
341 65, 341 67, 341106, H04N 514, H04N 1102, H04N 1104
Patent
active
058502602
ABSTRACT:
Apparatus and methods are provided for generating an output signal representing an initial Huffman Coding rate for use in compressing a received digital signal. The digital signal includes a plurality of digital sets wherein ones of the digital sets are non-unique. Ones of the digital sets are stored and an indicator is associated with each. The indicator represents the probability of occurrence, or frequency, of the associated digital set within the digital signal. While more than one associated indicator remains stored, pairs of the associated indicators are selectively combined and each of the selectively combined pairs of associated indicators are accumulated to determine the initial Huffman Coding rate. The initial Huffman Coding rate is used to compress the digital signal.
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Chin Tommy P.
Lucent Technologies - Inc.
Vincent David R.
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