US2006143003A1

2G

Title

Speech encoding device

Application Number:

US20060363807

Publication Date:

29-06-2006

Current Assignee:

Family ID:

Application Date:

28-02-2006

Declaring Company:

Publication Country:

US

Priority Date:

03-10-1990

Title

Speech encoding device

Application Number:

US20060363807

Family ID:

Publication Country:

US

Publication Date:

29-06-2006

Application Date:

28-02-2006

Priority Date:

03-10-1990

Current Assignee:

Declaring Company:

Abstract  Abstract

The present invention is a synthetic speech encoding device that produces a synthetic speech signal which closely matches an actual speech signal. The actual speech signal is digitized and excitation pulses are selected by minimizing the error between the actual and synthetic speech signals. The preferred pattern of excitation pulses needed to produce the synthetic speech signal is obtained by using an excitation pattern containing a multiplicity of weighted pulses at timed positions. The selection of the location and amplitude of each excitation pulse is obtained by minimizing an error criterion between the synthetic speech signal and the actual speech signal. The error criterion function incorporates a perceptual weighting filter which shapes the error spectrum.

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.