EP0570365A4

5G,4G,3G,2G

Title

DIGITAL SPEECH CODER HAVING OPTIMIZED SIGNAL ENERGY PARAMETERS.

Application Number:

EP19900915602

Publication Date:

02-04-1993

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:

EP19900915602

Family ID:

Publication Country:

US

Publication Date:

02-04-1993

Application Date:

09-10-1990

Priority Date:

17-10-1989

Current Assignee:

Declaring Company:

Abstract  Abstract

Speech coder and decoder methodology whereby the energies of the tone excitation and codebook excitation sources (100) are represented by parameters that are easily transmissible using minimized transmission capacity . The parameters are the long-term energy value, a short-term correction factor applied to the long-term energy value so that it conforms to the short-term energy value, and one or more factors (s) of proportionality which specify the relative energy contribution of the excitation sources to the short-term energy 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.