FI118195B

Title

Not Available

Application Number:

FI19960001158

Publication Date:

15-08-2007

Current Assignee:

LG

Family ID:

Application Date:

13-03-1996

Declaring Company:

LG

Publication Country:

US

Priority Date:

14-09-1993

Title

Not Available

Application Number:

FI19960001158

Family ID:

Publication Country:

US

Publication Date:

15-08-2007

Application Date:

13-03-1996

Priority Date:

14-09-1993

Current Assignee:

LG

Declaring Company:

LG

Abstract  Abstract

Speech is distinguished from noise by a spectral comparison of an input signal with a stored noise estimate. Updating of the noise estimate stored in a buffer is permitted during periods when speech is absent under control of an auxiliary detector. In order to improve operation in the presence of signals with strong harmonic components, e.g., signaling tones, an LPC prediction gain is computed from the input (x(i)) and a residual (y(i)) obtained from the input following filtering by a filter having a response complementary to the frequency spectrum of the input, and if the gain exceeds a threshold, buffer updating is suppressed.

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.