HK1104655A1

5G,4G,3G,2G

Title

Orthogonalization search for the CELP based speech coding

Application Number:

HK20070109794

Publication Date:

18-01-2008

Current Assignee:

Family ID:

Application Date:

07-09-2007

Declaring Company:

Publication Country:

US

Priority Date:

22-10-1997

Title

Orthogonalization search for the CELP based speech coding

Application Number:

HK20070109794

Family ID:

Publication Country:

US

Publication Date:

18-01-2008

Application Date:

07-09-2007

Priority Date:

22-10-1997

Current Assignee:

Declaring Company:

Abstract  Abstract

A speech coding method and a speech coder operating according to the code excited linear prediction paradigm. A random codevector is chosen using an orthogonalization search. Said search determines an optimum random excitation gain minimizing a distortion function. The denominator of the gain function is determined using preprocessed matrices determined in advance and depending on the adaptive codevector and synthesis filter matrix in order to reduce the amount of filtering operations during the search of the random codebook.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.