H - Electricity – 03 – M
Patent
H - Electricity
03
M
H03M 7/40 (2006.01) G06T 9/00 (2006.01) H03M 7/42 (2006.01) H04N 7/14 (2006.01) H04N 7/26 (2006.01) H04N 7/30 (2006.01)
Patent
CA 2170551
Apparatus and methods are provided for generating a Huf fman Code 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. Each stored digital set has associated therewith a codeword and an indicator. The indicator represents a probability of occurrence, or frequency, of the stored digital set within the digital signal. While more than one associated indicator remains stored, pairs of associated indicators are selectively combined and a first digital set associated with a first indicator and a second digital set associated with a second indicator are both associated with the selectively combined indicator. A first binary value is appended to the codeword associated with the first digital set and a second binary value is appended to the codeword associated with the second digital set.
At&t Ipm Corp.
Kirby Eades Gale Baker
LandOfFree
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