ການເຂົ້າລະຫັດສະເຕີຣິໂອຕາມການຈໍານວນທີ່ສະຫຼັບຊັບຊ້ອນ
This Laos Patent “MDCT-BASED COMPLEX PREDICTION STEREO CODING” is a public DIP intellectual-property record, filed by Dolby International AB on 2023-09-12; current status: Awaiting formal examination. Identifiers include application No. P/919; DIP id LAP919; protection kind Patent - Foreign. Key dates: publication 2026-04-03. Classification: G10L 19/008、G10L 19/06、G10L 19/18、G10L 25/12. Inventor(s)/designer(s): CARLSSON, Pontus-Swedishsh, PURNHAGEN, Heiko-German, VILLEMOES, Lars-Dannish. Abstract hint: The invention provides methods and devices for stereo encoding and decoding using complex prediction in the frequency domain. In one embodi…. This prose is informational only and does not constitute legal advice, ownership proof or an infringement opinion.
P/919
Mark
Key facts
- Type
- Patent
- App. no.
P/919- Status
- Awaiting formal examination
- Applicant
- Dolby International AB
- Agent
- ACTIP (LAO) IP CO., LTD.
- Filing date
- 2023-09-12
- Publication
- 2026-04-03
- Protection kind
- Patent - Foreign
- Priority
- SG · 10202104412W · 2011-04-06
- Nice / IPC classes
- G10L 19/008 · G10L 19/06 · G10L 19/18 · G10L 25/12
- 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
ການປະດິດນີ້ ສະໜອງໃຫ້ມີວິທີການ ແລະ ອຸປະກອນສໍາລັບການເຂົ້າ ແລະ ການຖອດລະຫັດ ສະເຕີຣີໂອ ໂດຍນໍາໃຊ້ການຄິດໄລ່ທີ່ຊັບຊ້ອນໃນໂດເມນຄວາມຖີ່. ໃນຮູບລັກສະນະໜຶ່ງ, ວິທີການຖອດລະຫັດ, ສໍາລັບການຮັບສັນຍານສະເຕີຣີໂອທີ່ສົ່ງອອກມາຈາກສັນຍານສະເຕີຣີໂອທີ່ສົ່ງເຂົ້າທີ່ຖືກເຂົ້າລະຫັດໂດຍການເຂົ້າລະຫັດການຄິດໄລ່ທີ່ຊັບຊ້ອນ ແລະ ປະກອບລວມດ້ວຍການເປັນຕົວແທນຂອງໂມເມນຄວາມຖີ່ທີ່ໜຶ່ງ ຂອງສອງຊ່ອງສັນຍານທາງເຂົ້າທັງສອງຊ່ອງ,ປະກອບດ້ວຍຂັ້ນຕອນການເພີ່ມສັນຍານຊ່ອງ:
(i) ການຄໍານວນການສະແດງຂອງໂມເດເມນຄວາມຖີ່ທີສອງຂອງຊ່ອງປ້ອນຂໍ້ມູນທໍາອິດ; ແລະ
(ii) ການຄໍານວນຊ່ອງສັນຍານທີ່ສົ່ງອອກບົນພື້ນຖານການຂອງການສະແດງໂດເມນຄວາມຖີ່ສອງຂອງຊ່ອງສັນຍານໂດເມນຄວາມຖີ່ທໍາອີດ ແລະ ຊ່ອງສັນຍານທີ່ສົ່ງເຂົ້າທີສອງ ແລະ ຄ່າສໍາປະສິດສົມມຸດຖານຊັບຊ້ອນ. ການເພີ່ມສັນຍານສາມາດລະງັບການຕອບສະໜອງຕໍ່ຂໍ້ມູນຄວບຄຸມໄດ້.
The invention provides methods and devices for stereo encoding and decoding using complex prediction in the frequency domain. In 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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