US2004143432A1

5G,4G,3G,2G

Title

Speech coder and speech decoder

Application Number:

US20030614834

Publication Date:

22-07-2004

Current Assignee:

Family ID:

Application Date:

09-07-2003

Publication Country:

US

Priority Date:

22-10-1997

Title

Speech coder and speech decoder

Application Number:

US20030614834

Family ID:

Publication Country:

US

Publication Date:

22-07-2004

Application Date:

09-07-2003

Priority Date:

22-10-1997

Current Assignee:

Abstract  Abstract

An excitation vector generator is provided for generating an excitation vector. The excitation vector includes a pulse vector generator that has at least one channel for generating pulse vectors. A memory stores at least one type of dispersion pattern for each of the channels. A dispersion pattern is selectively extracted from the memory for each of the channels. A dispersed vector generator generates a dispersed vector for every channel by convolution calculation using the extracted dispersion pattern and the generated pulse vectors. An excitation vector generator generates an excitation vector from the dispersed vectors generated by the dispersion vector generator.

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.