Linear prediction filter coefficient quantizer and filter set

Details Linear prediction filter coefficient quantizer and filter set Linear prediction filter coefficient quantizer and filter set

1994-12-21

1997-07-15

Chin, Stephen

Pulse or digital communications

Transmitters

Antinoise or distortion

375232, 375222, H04K 102, H04L 2503, H04L 2549

Patent

active

056489897

ABSTRACT:
A simultaneous voice and data (SVD) modem includes a preemphasis filter for processing an audio source signal, e.g., a voice signal, before transmission to a far-end SVD-capable modem. The preemphasis filter implements a second order linear predictor in which a quantized set of predictor coefficients are selected directly from the normalized autocorrelation coefficients. In addition, an index is associated with the selected set of predictor coefficients. This index is transmitted to an opposite SVD-capable modem, which thereby allows the opposite SVD-capable modem to select the same set of predictor coefficients for use in recovering the voice signal at the opposite endpoint.

REFERENCES:
patent: 5226060 (1993-07-01), Goodson et al.
patent: 5282225 (1994-01-01), Nikias et al.

Affiliated with

Also associated with

Rating

Linear prediction filter coefficient quantizer and filter set does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Linear prediction filter coefficient quantizer and filter set, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear prediction filter coefficient quantizer and filter set will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1497306