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公开(公告)号：AU2016280531B2
公开(公告)日：2021-02-04
申请号：AU2016280531
申请日：2016-05-26
Applicant: QUALCOMM INC
IPC: G10L21/038 , G10L19/18
Abstract: A device for signal processing includes a memory and a processor. The memory is configured to store a parameter associated with a bandwidth-extended audio stream. The processor is configured to select a plurality of non-linear processing functions based at least in part on a value of the parameter. The processor is also configured to generate a high-band excitation signal based on the plurality of non-linear processing functions.
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公开(公告)号：AU2018345331B2
公开(公告)日：2021-01-21
申请号：AU2018345331
申请日：2018-10-01
Applicant: QUALCOMM INC
IPC: G10L19/008 , G10L19/22 , G10L21/038
Abstract: A device includes a receiver configured to receive an inter-channel prediction gain parameter and an encoded audio signal. The encoded audio signal includes an encoded mid signal. The device also includes a decoder configured to generate a synthesized mid signal based on the encoded mid signal. The decoder is configured to generate an intermediate synthesized side signal based on the synthesized mid signal and the inter-channel prediction gain parameter. The decoder is further configured to filter the intermediate synthesized side signal to generate a synthesized side signal.
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公开(公告)号：MY182303A
公开(公告)日：2021-01-18
申请号：MYPI2017704207
申请日：2016-05-26
Applicant: QUALCOMM INC
Abstract: A device for signal processing includes a receiver (192) and a high-band excitation signal generator (147, 1347). The receiver is configured to receive a parameter associated with a bandwidth-extended audio stream. The high-band excitation signal generator is configured to determine a value of the parameter. The high-band excitation signal generator is also configured to select, based on the value of the parameter, one of target gain information associated with the bandwidth-extended audio stream or filter information (374) associated with the bandwidth-extended audio stream. The high-band excitation signal generator is further configured to generate a high-band excitation signal based on the one of the target gain information or the filter information.
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公开(公告)号：SG11201910914SA
公开(公告)日：2020-01-30
申请号：SG11201910914S
申请日：2018-06-06
Applicant: QUALCOMM INC
Inventor： ATTI VENKATRAMAN , CHEBIYYAM VENKATA
IPC: G10L21/038 , G10L19/008
Abstract: A method includes processing a time-domain decoded high-band mid signal to generate a time-domain high-band residual prediction signal. The method also includes generating a high-band left channel and a high-band right channel based on the time-domain decoded high-band mid signal and the time-domain high-band residual prediction signal.
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Patent Agency Ranking
公开(公告)号：ZA201708559B
公开(公告)日：2020-01-29
申请号：ZA201708559
申请日：2017-12-15
Applicant: QUALCOMM INC
Abstract: A device for signal processing includes a receiver and a high-band excitation signal generator. The receiver is configured to receive a parameter associated with a bandwidth-extended audio stream. The high-band excitation signal generator is configured to determine a value of the parameter. The high-band excitation signal generator is also configured to select, based on the value of the parameter, one of target gain information associated with the bandwidth-extended audio stream or filter information associated with the bandwidth-extended audio stream. The high-band excitation signal generator is further configured to generate a high-band excitation signal based on the one of the target gain information or the filter information.
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公开(公告)号：AU2018266531A1
公开(公告)日：2019-10-31
申请号：AU2018266531
申请日：2018-04-27
Applicant: QUALCOMM INC
IPC: G10L19/005 , G10L19/008
Abstract: An apparatus includes a receiver and a decoder. The receiver is configured to receive a bitstream that includes an encoded mid channel and a quantized value representing a shift between a reference channel associated with an encoder and a target channel associated with the encoder. The quantized value is based on a value of the shift. The value of the shift is associated with the encoder and has a greater precision than the quantized value. The decoder is configured to decode the encoded mid channel to generate a decoded mid channel and to generate a first channel based on the decoded mid channel. The decoder is further configured to generate a second channel based on the decoded mid channel and the quantized value. The first channel corresponds to the reference channel and the second channel corresponds to the target channel.
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公开(公告)号：SG11201907670UA
公开(公告)日：2019-10-30
申请号：SG11201907670U
申请日：2018-03-27
Applicant: QUALCOMM INC
IPC: G10L19/008 , G10L21/038
Abstract: AnalysisData Final Shift Value 116 First Device 104 Memory 153 Transmitter 110 Input Interface(s) 112 Encoder 114 First Audio Channel 130 First Microphone 146 Second Audio Channel 132 Second Microphone 148 Sound Source 152 Second Device r 118 Decoder ICBWE Spatial Gain Mapping Parameter Generator M 106 N. First Output Channel 126 First Loudspeaker 142 Seco d Loudspeaker 144 Second Output — Channel 128 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 11 October 2018 (11.10.2018) WIPO I PCT olimion °nolo mol mons mionflom oimIE (10) International Publication Number WO 2018/187082 Al (51) International Patent Classification: G10L 19/008 (2013.01) G1 0L 21/038 (2013.01) (21) International Application Number: PCT/US2018/024500 (22) International Filing Date: 27 March 2018 (27.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/482,150 05 April 2017 (05.04.2017) US 15/935,952 26 March 2018 (26.03.2018) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: CHEBIYYAM, Venkata Subrahmanyam Chandra Sekhar; 590 Mill Creek Lane, #205, Santa Clara, California 95054 (US). ATTI, Venkatraman; 5775 More- house Drive, San Diego, California 92121-1714 (US). (74) Agent: TOLER, Jeffrey G. et al.; Toler Law Group, PC, 8500 Bluffstone Cove, Suite A201, Austin, Texas 78759 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (54) Title: INTER-CHANNEL BANDWIDTH EXTENSION 100 Stereo Downmix/Upmix Parameter Bitstream 290 Low-Band Mid Channel Bitstream 292 High-Band Mid Channel BWE Bitstream 294 Stereo Downmix/Upmix Parameter Bitstream 290 Low-Band Mid Channel Bitstream 292 High-Band Mid Channel BWE Bitstream 294 1-1 N GC O N GC 1-1 00 O 1-1 N O FIG. 1 (57) : A method includes decoding a low-band mid channel bitstream to generate a low-band mid signal and a low-band mid excitation signal. The method further includes decoding a high-band mid channel bandwidth extension bitstream to generate a synthesized high-band mid signal. The method also includes determining an inter-channel bandwidth extension (ICBWE) gain mapping parameter corresponding to the synthesized high-band mid signal. The ICBWE gain mapping parameter is based on a selected frequen- cy-domain gain parameter that is extracted from a stereo downmix/upmix parameter bitstream. The method further includes performing a gain scaling operation on the synthesized high-band mid signal based on the ICBWE gain mapping parameter to generate a reference high-band channel and a target high-band channel. The method includes outputting a first audio channel and a second audio channel. The first audio channel is based on the reference high-band channel, and the second audio channel is based on target high-band channel. [Continued on next page] WO 2018/187082 Al 0 1OIIIIIII SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))
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公开(公告)号：AU2017342737A1
公开(公告)日：2019-03-28
申请号：AU2017342737
申请日：2017-09-20
Applicant: QUALCOMM INC
IPC: G10L19/008 , G10L19/02 , G10L19/022
Abstract: A stereo parameter conditioner performs a conditioning operation on a first value of a stereo parameter and a second value of the stereo parameter to generate a conditioned value of the stereo parameter. The first value is associated with a first frequency range, and the second value is associated with a second frequency range. The conditioned value is associated with a particular frequency range that is a subset of the first frequency range or a subset of the second frequency range.
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公开(公告)号：PH12017502191A1
公开(公告)日：2018-05-28
申请号：PH12017502191
申请日：2017-12-01
Applicant: QUALCOMM INC
IPC: G10L19/18 , G10L21/038
Abstract: A device for signal processing includes a memory and a processor. The memory is configured to store a parameter associated with a bandwidth-extended audio stream. The processor is configured to select a plurality of non-linear processing functions based at least in part on a value of the parameter. The processor is also configured to generate a high-band excitation signal based on the plurality of non-linear processing functions.
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