Audio Upmixer Operable in Prediction or Non-Prediction Mode
The following summary describes a Laos Patent titled “Audio Upmixer Operable in Prediction or Non-Prediction Mode”, filed by Dolby International AB on 2021-08-10; current status: Awaiting formal examination. Identifiers include application No. P/794; DIP id LAP794; protection kind Patent - Foreign. Key dates: publication 2026-03-27. Classification: G10L 19/008、G10L 19/02、G10L 19/06、H04S 3/00. Inventor(s)/designer(s): VILLEMOES, Lars, CARLSSON, Pontus, PURNHAGEN, Heiko. Abstract hint: The invention provides methods and devices for stereo encoding and decoding using complex prediction in the frequency domain. ln one embodi…. Unique application identifiers, holders and classification text are surfaced here to reduce near-duplicate IP landing pages; always verify against the competent office.
P/794
Mark
Key facts
- Type
- Patent
- App. no.
P/794- Status
- Awaiting formal examination
- Applicant
- Dolby International AB
- Agent
- Lao Trademark Agency
- Filing date
- 2021-08-10
- Publication
- 2026-03-27
- Protection kind
- Patent - Foreign
- Priority
- US · 61/322,458 · 2010-04-09
- Applicant address
- Dolby International AB · Apollo Building, 3E Herikerbergweg 1-35 1101 CN Amsterdam Zuidoost, The Netherlands · NL
- Agent address
- Lao Trademark Agency · 148-149 Ban Sisavath Kang, Unit 16 Chanthabury District, P.O. Box: 925, Vientiane · LA
- Nice / IPC classes
- G10L 19/008 · G10L 19/02 · G10L 19/06 · H04S 3/00
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination In progress
-
Substantive examination
-
Published
-
Granted
Related records
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Abstract
The invention provides methods and devices for stereo encoding and decoding using complex prediction in the frequency domain. ln one embodiment, a decoding method, for obtaining an output
stereo signal from an input stereo signal encoded by complex prediction coding and comprising
first frequency-domain representations of two input channels, comprises the upmixing steps of:
(i) computing a second frequency-domain representation of a first input channel; and (ii) computing an output channel on the basis of the first and second frequency-domain representations
of the first input channel, the first frequency-domain representation of the second input channel and a complex prediction coefficient. The upmixing can be suspended responsive to control data.
The invention provides methods and devices for stereo encoding and decoding using complex prediction in the frequency domain. ln one embodiment, a decoding method, for obtaining an output
stereo signal from an input stereo signal encoded by complex prediction coding and comprising
first frequency-domain representations of two input channels, comprises the upmixing steps of:
(i) computing a second frequency-domain representation of a first input channel; and (ii) computing an output channel on the basis of the first and second frequency-domain representations
of the first input channel, the first frequency-domain representation of the second input channel and a complex prediction coefficient. The upmixing can be suspended responsive to control data.
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