Coded data generation or conversion – Digital code to digital code converters – Byte length changed
Patent
1992-03-24
1994-04-19
Young, Brian K.
Coded data generation or conversion
Digital code to digital code converters
Byte length changed
341 58, H03M 700
Patent
active
053049977
ABSTRACT:
A plurality of first codeword pairs each including a 15-bit codeword of which CDS is equal to +3 and a 15-bit codeword of which CDS is equal to -1 and a plurality of second code pairs each including a 15-bit codeword of which CDS is equal to +1 and a 15-bit codeword of which CDS is equal to -3 are produced. One of the plurality of first code pairs and one of the plurality of second code pairs are assigned to each 8-bit data word, and one of the first and second code pairs assigned to each 8-bit data word is selected so that the number of continuous identical bits in a 15-bit codeword sequence is not less than 2 and not more than 8. One of two 15-bit codewords included in the selected code pair is selected so that DSV at the last bit of each 15-bit codeword periodically varies.
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"An Experiment Digital VCR with 40MM Drum, Single Actuator & DCT.multidot.Based Bit.multidot.Rate Reduction" @ 1988 IEEE.
"A Study on the Servo Method for Home Use Digital VTR" vol. 14, No. 41, pp. 1-6 VIR. 90-43, Aug. 1990.
Sharp Kabushiki Kaisha
Young Brian K.
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