Coder for segmented coding of an input signal using controllable

Details Coder for segmented coding of an input signal using controllable Coder for segmented coding of an input signal using controllable

1997-11-25

2000-11-14

Young, Brian

Coded data generation or conversion

Digital code to digital code converters

H03M 700

Patent

active

061476277

ABSTRACT:
A coder for segmented coding of an input signal (b) by using of a controllable quantizer (1C) and a buffer memory (6) is described. Data of the input signing (b), which are quantized and VLC-coded in operation, are buffered in the buffered memory (6). To avoid the conventional control, beset with drawbacks, of the quantizer (1C) by using of the filling state of the buffer memory (6), a controller (3, 4, 7, S1, S2, S3) provided with which a single adjustment of the quantizer (1C) for a signal segment to be coded is determined in that the signal segment is trial-coded at different adjustments of the quantizer (1C), the bit volume (the number of bits) is determined at each trial run, resulting in a VLC coding of the signal segment at the actually selected adjustment of the quantizer (1C), and that adjustment of the quantizer (1C) is used for the final coding and transmission of the signal segment which, during the trial runs, has yielded a bit volume which substantially corresponds to a nominal bit volume.

REFERENCES:
patent: 4578704 (1986-03-01), Gharavi
patent: 5073821 (1991-12-01), Juri
patent: 5146324 (1992-09-01), Miller et al.
patent: 5235671 (1993-08-01), Mazor
patent: 5245427 (1993-09-01), Kunihiro
patent: 5287178 (1994-02-01), Acampora et al.
patent: 5412431 (1995-05-01), Vogel
patent: 5420705 (1995-05-01), Ray
"Draft Revision of Recommendation Video Codec for Audiovisual Services at PX64 KBIT/S" Image Communication 2 (1990) pp. 221-239.
International Standard DIS 10918-1 Digital Compression and Coding of Continuous Tone Still Images.
"Adaptive Spectral Perceptual Entropy Coding of High Quality Music Signals", by K. Brandenburg et al., Audio Engineering Society Preprint, 3011, 1991.

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