Circuit and method for compensating for lost frames
US10032457B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2017 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Jun 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit to compensate for a lost audio frame, comprising: an identifier configured to identify a reference audio segment with a first length followed by the lost audio frame with a second length; a searcher coupled to the identifier and configured to search for a first audio segment similar to the reference audio segment in a cached audio segment followed by the reference audio segment by utilizing a cross-correlation search; the identifier further configured to identify a second audio segment subsequent to the first audio segment as a pre-compensated audio frame; an adjustor coupled to the identifier and configured to adjust an amplitude of the second audio segment based on a scale factor; and an output coupled to the adjustor to output the adjusted second audio segment as a compensated audio frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.