US2009132247A1

5G,4G,3G,2G

Title

SPEECH CODER AND SPEECH DECODER

Application Number:

US20090357093

Publication Date:

21-05-2009

Current Assignee:

Family ID:

Application Date:

21-01-2009

Publication Country:

US

Priority Date:

22-10-1997

Abstract  Abstract

A target vector is coded by multi-stage vector quantization. A first stage of the coding of the target vector uses a first code vector stored in a first codebook. A scalar associated with a code of each first code vector is stored. A third code vector is determined by multiplying a second code vector stored in a second codebook and the scalar together performing distance calculation using the target vector the first code vector and the third code vector and performing a second stage of the coding of the target vector using a result of the distance calculation.

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.