Apparatus and method for converting LSP parameter for voice...

Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C370S401000, C370S466000, C704S265000

Reexamination Certificate

active

10246539

ABSTRACT:
An apparatus for converting voice packets transmitted/received through a network includes a first transcoder for performing at least one of bit-unpacking and unquantization on an encoded packet at a first encoder, namely transmitting party, to obtain an LSP (Line Spectrum Pair) parameter of the first encoder, and converting and unquantizing the LSP parameter to an LSP parameter of a second encoder, namely receiving party, to do bit-packing. A second transcoder performs at least one of bit-unpacking and unquantization on an encoded packet at the second encoder, namely transmitting party, to obtain an LSP parameter of the second encoder, and converts and unquantizes the LSP parameter to an LSP parameter of the first encoder, namely receiving party, to do bit-packing.

REFERENCES:
patent: 5991716 (1999-11-01), Lehtimaki
patent: 5995923 (1999-11-01), Mermelstein et al.
patent: 6678654 (2004-01-01), Zinser et al.
patent: 6829579 (2004-12-01), Jabri et al.
patent: 7016831 (2006-03-01), Suzuki et al.
patent: 7142559 (2006-11-01), Choi et al.
Park et al, An Efficient Transcoding Algorithm for G.723.1 And EVRC Speech Coders, IEEE, pp. 1561-1564, 2001.
Lovrich et al, A Multi-Rate Transcoder, IEEE, pp. 715-722, 1989.
Tsai et al, GSM To G.729 Speech Transcoder, pp. 485-488, 2001.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus and method for converting LSP parameter for voice... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for converting LSP parameter for voice..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for converting LSP parameter for voice... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3862770

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.