CROSS PRODUCT ENHANCED SUBBAND BLOCK BASED HARMONIC TRANSPOSITION
This Laos Patent “CROSS PRODUCT ENHANCED SUBBAND BLOCK BASED HARMONIC TRANSPOSITION” is a public DIP intellectual-property record, filed by Dolby International AB on 2023-09-12; current status: Registered. Identifiers include application No. P/916; DIP id LAP916; protection kind Patent - Foreign. Key dates: publication 2025-12-19; grant 2025-07-22; expiry reference 2043-09-12. Classification: G10L 21/04、G10L 19/025、G10L 21/038、H03G 3/00. Inventor(s)/designer(s): VILLEMOES, Lars - Danish. Abstract hint: The invention provides an efficient implementation of cross-product enhanced highfrequctlcr reconstruction (HFR), wherein a new component a…. This prose is informational only and does not constitute legal advice, ownership proof or an infringement opinion.
P/916
Mark
Key facts
- Type
- Patent
- App. no.
P/916- Status
- Registered
- Applicant
- Dolby International AB
- Agent
- ACTIP (LAO) IP CO., LTD.
- Filing date
- 2023-09-12
- Reg. no.
P/916- Publication
- 2025-12-19
- Registration / grant
- 2025-07-22
- Expiry
- 2043-09-12
- Protection kind
- Patent - Foreign
- Gazette
- 314 · 2025-07-25
- Priority
- SG · SG10202103492X
- Applicant address
- Dolby International AB · Mr. Treublaan 7 1097DP Amsterdam The Netherlands · NL
- Agent address
- ACTIP (LAO) IP CO., LTD. · Sisavath Village, Chanthabouly District, Vientiane, Lao PDR · LA
- Nice / IPC classes
- G10L 21/04 · G10L 19/025 · G10L 21/038 · H03G 3/00
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination
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Substantive examination
-
Published
-
Granted
Related records
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Abstract
ການປະດິດສ້າງຈັດໃຫ້ມີການປະຕິບັດທີ່ມີປະສິດທິພາບຂອງການປັບປຸງຜົນຄູນເວັກເຕີ (cross-product) ດ້ວຍການຟື້ນຟູດ້ວຍຄວາມຖີ່ສູງ (HFR), ເຊິ່ງອົງປະກອບໃໝ່ຢູ່ທີ່ຄວາມຖີ່QΩ+rΩ 0 ແມ່ນຖືກສ້າງບົນພື້ນຖານຂອງການລວມກັນຂອງອົງປະກອບ Ω ແລະ Ω+Ω 0 . ການປະດິດຈັດໃຫ້ມີການປ່ຽນຍ້າຍຮາໂມນິກທີມີໄລຍະເປັນພື້ນຖານ, ເຊິ່ງໄລຍະເວລາຂອງຕົວຢ່າງຍ່ານຄວາມຖີ່ຍ່ອຍແບບຊັບຊ້ອນນແມ່ນປະມວນຜົນດ້ວຍການແກ້ໄຂຮູບລັກສະນະທົ່ວໄປ. ການຊ້ອນທັບກັນຂອງຕົວຢ່າງທີ່ຖືກດັດແປງຫຼາຍຕົວຢ່າງແມ່ນມີຜົນສຸດທິຕໍ່ກັບການຈໍາກັດຜົນຂອງການປະສົມລວມກັນຂອງຄວາມຖີ່ (intermodulation products), ຈຶ່ງເຮັດໃຫ້ສາມາດແກ້ໄຂຄວາມຖີ່ທີ່ຫຍາບກວ່າ ແລະ/ຫຼື ການໃຊ້ລະບົບກັບການສຸ່ມຕົວຢ່າງທີ່ຕໍ່າກວ່າ. ໃນຮູບລັກສະນະໜຶ່ງ. ການປະດິດເພີ່ມເຕີມລວມເຖິງໜ້າທີ່ຂອງຊ່ອງທີ່ເໝາະສົມໃນການໃຊ້ກັບການປັບປຸງຜົນຄູນເວັກເຕີ້ຕາມໄລຍະດ້ວຍການສ້າງໃໝ່ດ້ວຍຄວາມຖີ່ສູງ (HFR). ລັກສະນະຮາດແວ ຂອງການປະດິດອາດປະກອບດ້ວຍຕົວກອງການວິເຄາະ (101), ຫົວໜ່ວຍປະມວນຜົນຍ່ານຄວາມຖີ່ຍ່ອຍ (102) ທີ່ສາມາດກໍານົດຄ່າໂດຍຂໍ້ມູນຄວບຄຸມ (104) ແລະ ຕົວກອງການສັງເຄາະ (103).
The invention provides an efficient implementation of cross-product enhanced highfrequctlcr reconstruction (HFR), wherein a new component at frequency OO + rzois generated on thc basis of existing components at O and A + eo The invention provides a block_ basecl hat'rllotlic transposition, wherein a time block of complex subband samples is processed with a c()lllllloll phase rnodification. Superposition of several modified samples has the net effect ol'linritirlg undesirable intermodulation products, thereby enabling a coarser frequency resoltttiott arld/or lower degree of oversampling to be used. In one embodiment, the invention furthcl irlcludes a window function suitable for use with block-based cross-product enhanced HFR. ,'\ hitt'dware embodiment of the invention may include an analysis filter bank (l0l), a subbtrrrtl Ptucessing unit (102) configurable by control data (104) and a synthesis filter bank ( 103 )
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