Encoding device and encoding method, decoding device and decoding method, and program
US-2024055007-A1 · Feb 15, 2024 · US
Encoding device, decoding device, and method thereof for specifying a band of a great error
US8935162B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8935162-B2 |
| Application number | US-201313966848-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 14, 2013 |
| Priority date | Mar 2, 2007 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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Abstract
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Disclosed is an encoding device which can accurately specify a band having a large error among all the bands by using a small calculation amount. A first position identifier uses a first layer error conversion coefficient indicating an error of a decoding signal for an input signal so as to search for a band having a large error in a relatively wide bandwidth in all the bands of the input signal and generates first position information indicating the identified band. A second position identifier searches for a target frequency band having a large error in a relatively narrow bandwidth in the band identified by the first position identifier and generates second position information indicating the identified target frequency band. An encoder encodes a first layer decoding error conversion coefficient contained in the target frequency band.
First claim
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What is claimed is: 1. A speech encoding apparatus, comprising: a first layer encoder that performs encoding processing, using a processor, with respect to an input speech signal to generate first layer encoded data; a first layer decoder that performs decoding processing, using the processor, using the first layer encoded data to generate a first layer decoded signal; a first layer error transform coefficient calculator that transforms, using the processor, a first layer erro…
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- What does patent US8935162B2 cover?
- Disclosed is an encoding device which can accurately specify a band having a large error among all the bands by using a small calculation amount. A first position identifier uses a first layer error conversion coefficient indicating an error of a decoding signal for an input signal so as to search for a band having a large error in a relatively wide bandwidth in all the bands of the input signa…
- Who is the assignee on this patent?
- Panasonic Corp, Panasonic Ip Corp America
- What technology area does this patent fall under?
- Primary CPC classification G10L19/24. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).