Coded data generation or conversion – Digital code to digital code converters – Adaptive coding
Patent
1994-05-18
2000-02-08
Young, Brian
Coded data generation or conversion
Digital code to digital code converters
Adaptive coding
381 51, H03M 700
Patent
active
RE0365599
ABSTRACT:
This invention relates to a digital signal encoding apparatus in which the [width of the range in] digital signal is divided into frequency components in plural frequency bands and the bandwidth of the frequency bands is selected to be wider for [the] higher [frequency range] frequencies of the digital [signals divided into a plurality of regions] signal and in which the encoded signals are synthesized for the respective [ranges] frequency bands wherein encoding is controlled as a function of the output detecting the characteristics of the frequency components [of] in the [divided] frequency bands and the detection time interval is selected to be longer for the lower frequency bands to enable more efficient encoding to be performed as a function of the properties of input digital signals.
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Akagiri Kenzo
Akune Makoto
Fujiwara Yoshihito
Iwahashi Naoto
Nishiguchi Masayuki
Sony Corporation
Young Brian
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