Pulse or digital communications – Pulse code modulation – Length coding
Reexamination Certificate
2006-01-03
2006-01-03
Liu, Shuwang (Department: 2634)
Pulse or digital communications
Pulse code modulation
Length coding
C341S058000, C341S059000, C369S059190, C369S275300, C369S047150, C714S769000, C380S261000, C386S349000
Reexamination Certificate
active
06983022
ABSTRACT:
A data-modulating apparatus for modulating data having a basic data length of m bits, to a variable-length code(d, k; m, n: r) having a basic code length of n bits. A sync signal is added to a recieved train of codes after a minimum run, the sync signal having a pattern that breaks a maximum run. The pattern is repeated twice continuously, and the minimum run is repeated no more than six times. The first bit of the sync signal is “1” when the train of modulated codes that immediately precedes the sync signal is included in the termination table used to terminate, at a desired position, a code when less than a predetermined number of variable length codes are available.
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Nakagawa Toshiyuki
Narahara Tatsuya
Shimpuku Yoshihide
Frommer William S.
Frommer & Lawrence & Haug LLP
Liu Shuwang
Pathak Sudhanshu C.
Sony Corporation
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