Coded data generation or conversion – Digital code to digital code converters
Patent
1997-03-13
1999-01-19
Williams, Howard L.
Coded data generation or conversion
Digital code to digital code converters
341 58, H03M 700
Patent
active
058618252
ABSTRACT:
5*3 states are arranged on a plane composed of the horizontal axis and vertical axis, 2-bit data of 01, 10, 00, and 11 are assigned to the state transitions in the up, down, right, and left-directions respectively in the 3*5 states. A 20-bit code is generated by 10 times the state transitions. 2.sup.16 20-bit codes are prepared and these codes have a one-to-one correspondence to 16-bit data (2.sup.16). The end point of the previous state transition is the starting point of the next state transition, and 16-bit data are converted successively to 20-bit codes while the state transitions occur continuously. In the manner as described above, the conversion efficiency in PR (1, 1) is improved.
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PRO-Bit; A Unique Digital Translation System (web page URL: "http://www.yamaha.co.jp/product/av/eng/tec6.html") (May 28, 1998).
Yamaha; CDX-993 Compact Disc Single Player (web page URL:"http://www.yamaha.co.jp/product/av/eng/cdx993.html") (May 28, 1998).
Lawrence Rabiner et al.; Prentice Hall Signal Processing Series; Fundamentals of Speech Recognition; pp. 339-348, Section 6.4- 6.4.4(Aug. 12, 1993).
Jean-Pierre Peguy
Sony Corporation
Williams Howard L.
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