Adaptive delta modulation codec

Details Adaptive delta modulation codec Adaptive delta modulation codec

1983-12-19

1987-02-24

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375 30, 375 32, 364724, H03M 738

Patent

active

046463224

ABSTRACT:
An ADM codec includes CVSD encoder and decoder circuitry having a syllabic filter responsive to the binary state of the ADM bit samples for changing the quantization step amplitude at a rate of change directly proportional to the rate of change of slope of the received voice signal.

REFERENCES:
patent: 3609551 (1971-09-01), Brown
patent: 3757252 (1973-09-01), Deschenes et al.
patent: 3878465 (1975-04-01), Stephenne et al.
patent: 3882426 (1975-05-01), Hoeschele, Jr.
patent: 3899754 (1975-08-01), Brolin
patent: 4042921 (1977-08-01), Smith
"Logarithmic Digital Compandor for Delta Modulation", D. L. Henry, IBM Technical Disclosure Bulletin, vol. 17, No. 3, Aug. 1974, pp. 909-910.

Affiliated with

Also associated with

Rating

Adaptive delta modulation codec does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive delta modulation codec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive delta modulation codec will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-114390