Concept for generating an enhanced sound field description or a modified sound field description using a multi-point sound field description
US-2024098445-A1 · Mar 21, 2024 · US
Binaural decoder to output spatial stereo sound and a decoding method thereof
US9071920B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9071920-B2 |
| Application number | US-201213588563-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 17, 2012 |
| Priority date | Mar 7, 2006 |
| Publication date | Jun 30, 2015 |
| Grant date | Jun 30, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A binaural decoder for an MPEG surround stream, which decodes an MPEG surround stream into a stereo 3D signal, and a decoding method thereof. The method includes dividing a compressed audio stream and head related transfer function (HRTF) data into subbands, selecting predetermined subbands of the HRTF data divided into subbands and filtering the HRTF data to obtain the selected subbands, decoding the audio stream divided into subbands into a stream of multi-channel audio data with respect to subbands according to spatial additional information, and binaural-synthesizing the HRTF data of the selected subbands with the multi-channel audio data of corresponding subbands.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus for generating a binaural signal, comprising: a quadrature mirror filter (QMF), analysis device to perform a QMF analysis on a mono downmixed signal to generate a QMF-domain mono downmixed signal; a spatial synthesis processing device to generate a QMF-domain binaural signal from the QMF-domain mono downmixed signal by a spatial synthesis process using spatial parameters and the HRTF parameter; and a QMF synthesis to generate a time-domain b…
Assignees
Inventors
Classifications
- G10L19/008Primary
Physics · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04S3/008Primary
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9071920B2 cover?
- A binaural decoder for an MPEG surround stream, which decodes an MPEG surround stream into a stereo 3D signal, and a decoding method thereof. The method includes dividing a compressed audio stream and head related transfer function (HRTF) data into subbands, selecting predetermined subbands of the HRTF data divided into subbands and filtering the HRTF data to obtain the selected subbands, decod…
- Who is the assignee on this patent?
- Moon Han-Gil, Kim Sun-Min, Chun In-Gyu, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G10L19/008. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 30 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).