US Patent No: 7,979,272
Number of patents in Portfolio can not be more than 2000
System and methods for concealing errors in data transmission
Stats
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Jul 12, 2011
Issued date -
Oct 12, 2007
filing date -
11/871,699
serial no -
In Force
status
Importance
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Abstract
, of the erased and subsequent frames can be reestimated by a gain matching procedure. By using this technique with the IS-641 speech coder, it has been found that the present invention improves the speech quality under various channel conditions, compared with a conventional extrapolation-based concealment algorithm.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6,990,195 Voice and data exchange over a packet based network with resource management | 17 | 2000 | |
| 7,092,365 Voice and data exchange over a packet based network with AGC | 8 | 2000 | |
| 6,980,528 Voice and data exchange over a packet based network with comfort noise generation | 13 | 2000 | |
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| 6,850,884 Selection of coding parameters based on spectral content of a speech signal | 5 | 2001 | |
| 6,937,979 Coding based on spectral content of a speech signal | 5 | 2001 | |
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| 7,379,865 System and methods for concealing errors in data transmission | 3 | 2001 | |
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| 6,842,733 Signal processing system for filtering spectral content of a signal for speech coding | 4 | 2001 | |
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| 5,642,465 Linear prediction speech coding method using spectral energy for quantization mode selection | 10 | 1995 | |
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| 6,757,654 Forward error correction in speech coding | 74 | 2000 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jan 12, 2015 |
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| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 12, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
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