CA2065731A1

5G,4G,3G,2G

Title

DIGITAL SPEECH CODER HAVING OPTIMIZED SIGNAL ENERGY PARAMETERS

Application Number:

CA19902065731

Publication Date:

18-04-1991

Current Assignee:

Family ID:

Application Date:

09-10-1990

Declaring Company:

Publication Country:

US

Priority Date:

17-10-1989

Title

DIGITAL SPEECH CODER HAVING OPTIMIZED SIGNAL ENERGY PARAMETERS

Application Number:

CA19902065731

Family ID:

Publication Country:

US

Publication Date:

18-04-1991

Application Date:

09-10-1990

Priority Date:

17-10-1989

Current Assignee:

Declaring Company:

Abstract  Abstract

A speech coder and decoder methodology wherein pitch excitation and codebook excitation source energies (100) are represented by parameters that are readily transmissible with minimal transmission capacity requirements. The parameters are the long term energy value, a short term correction factor which is applied to the long term energy value to match the short term energy, and proportionality factor(s) that specify the relative energy contribution of the excitation sources to the short term value (101)

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.