Digital signal processing apparatus and a communication system u

Details Digital signal processing apparatus and a communication system u Digital signal processing apparatus and a communication system u

1994-12-06

1996-02-06

Chin, Stephen

Pulse or digital communications

Miscellaneous

379 58, 341 61, H04L 2300, H03M 500

Patent

active

054901839

ABSTRACT:
Base station equipment of a digital mobile communication system includes a digital audio signal processing apparatus provided for each message channel for low bit rate coding and decoding a digital audio signal. Each digital audio signal processing apparatus includes a plurality of memories that store a plurality of low bit rate coding/decoding programs differing from each other to comply with different low bit rate coding/decoding methods. A system control circuit determines the low bit rate coding/decoding method of an applied digital signal for controlling a selector to select a memory that stores corresponding low bit rate coding/decoding program. As a result, the digital audio signal processing apparatus performs digital to digital conversion of the applied digital signal according to the low bit rate coding/decoding program stored in the selected memory.

REFERENCES:
patent: 3860908 (1975-01-01), Stratton, III
patent: 4536745 (1985-08-01), Yamaguchi et al.
patent: 4628297 (1986-12-01), Mita et al.
patent: 4804959 (1989-02-01), Makansi et al.
patent: 5119093 (1992-06-01), Vogt et al.
patent: 5272698 (1993-12-01), Champion
patent: 5367522 (1994-11-01), Otani
"Design Concept of Speech Processing Equipment for Digital Land Mobile Communication Systems", 2-411 of National Conference of IECE, Spring 1991.

Affiliated with

Also associated with

Rating

Digital signal processing apparatus and a communication system u does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital signal processing apparatus and a communication system u, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital signal processing apparatus and a communication system u will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2180762