Digital transmission system, an apparatus for recording and/or r

Details Digital transmission system, an apparatus for recording and/or r Digital transmission system, an apparatus for recording and/or r

1991-03-08

1993-08-10

Kemeny, Emanuel S.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 36, 3647241, G10L 500

Patent

active

052356477

ABSTRACT:
A digital transmission system has a transmitter (3,6,9) and a receiver (13,16,19). The transmitter includes a coder for subband coding of the digital signal, by dividing the digital signal band into successive subbands having approximately equal bandwidths. The receiver recontructs a replica of the digital signal by merging the subbands to the digital signal band. The transmitter includes analysis filter means (6) and receiver includes synthesis filter means (16). The filter coefficients in the analysis filter means are unequal to the filter coefficients in the synthesis filter means.

REFERENCES:
patent: 4691292 (1987-09-01), Rothweiler
patent: 4799179 (1989-01-01), Masson
patent: 5109417 (1992-04-01), Fielder

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