EP1755227A3

5G,4G,3G,2G

Title

Multistage vector quantization for speech encoding

Application Number:

EP20060021078

Publication Date:

28-02-2007

Current Assignee:

Family ID:

Application Date:

22-10-1998

Publication Country:

US

Priority Date:

22-10-1997

Title

Multistage vector quantization for speech encoding

Application Number:

EP20060021078

Family ID:

Publication Country:

US

Publication Date:

28-02-2007

Application Date:

22-10-1998

Priority Date:

22-10-1997

Current Assignee:

Abstract  Abstract

A vector quantization apparatus for performing coding of a target vector by multi-stage vector quantization the apparatus comprising: a first quantizing section (899904906) for performing a first stage of the coding of the target vector using a first code vector stored in a first codebook (899); an amplifier storing section (908) for storing a scalar associated with a code of each first code vector; and a second quantizing section (905900907) for determining a third code vector by multiplying a second code vector stored in a second codebook and the scalar together performing distance calculation (905) 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.