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公开(公告)号：AU2016370363B2
公开(公告)日：2019-11-14
申请号：AU2016370363
申请日：2016-12-09
Applicant: QUALCOMM INC
IPC: G10L19/008 , G10L19/022
Abstract: A device includes a processor, a memory, and a combiner. The processor is configured to receive a first combined frame and a second combined frame corresponding to a multi-channel audio signal. The memory is configured to store first lookahead portion data of the first combined frame. The first lookahead portion data is received from the processor. The combiner is configured to generate a frame at a multi-channel encoder. The frame includes a subset of samples of the first lookahead portion data, one or more samples of updated sample data corresponding to the first combined frame, and a group of samples of second combined frame data corresponding to the second combined frame.
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公开(公告)号：NZ737172A
公开(公告)日：2019-10-25
申请号：NZ73717216
申请日：2016-05-26
Applicant: QUALCOMM INC
Inventor： ATTI VENKATRAMAN , CHEBIYYAM VENKATA
IPC: G10L21/038 , G10L19/18
Abstract: Wideband coding techniques involve encoding and transmitting a lower frequency portion of a signal (e.g., 50 Hertz (Hz) to 7 kiloHertz (kHz), also called the “low-band”). In order to improve coding efficiency, the higher frequency portion of the signal (e.g., 7 kHz to 16 kHz, also called the “high-band”) may not be fully encoded and transmitted. Properties of the low-band signal may be used to generate the high-band signal. For example, a high-band excitation signal may be generated based on a low-band residual using a non-linear model. The present disclosure describes an improvement or alternatives. In one form, there is provided a device for signal processing which 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：SG11201906584WA
公开(公告)日：2019-09-27
申请号：SG11201906584W
申请日：2018-02-08
Applicant: QUALCOMM INC
IPC: G10L19/02 , G10L19/008 , G10L21/038
Abstract: OGC ' 00 O N O (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 13 September 2018 (13.09.2018) WIP0 I PCT 0111111010 0111 °nolo Oil ioo IH 01O 0111 IIII iflo oimIE (10) International Publication Number WO 2018/164805 Al 212, (51) International Patent Classification: G10L 19/008 (2013.01) GlOL 21/038 (2013.01) GlOL 19/02 (2013.01) (21) International Application Number: PCT/US2018/017359 (22) International Filing Date: 08 February 2018 (08.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/469,432 09 March 2017 (09.03.2017) US 15/890,670 07 February 2018 (07.02.2018) 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; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). ATTI, Venkatraman; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (74) Agent: TOLER, JEFFREY G.; 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, (54) Title: INTER-CHANNEL BANDWIDTH EXTENSION SPECTRAL MAPPING AND ADJUSTMENT 212 440 442 High-Band Reference Channel Determination High-Band Reference High-Band Reference Channel Indicator High-Band Reference Channel Channel Indientor Channel Indicator RiKhe Unit 404 Encoder as Ch cl I r Eitatream 214 '234 liattnr _ieL 4. Non-Rcloronco High-Band Excitation Generator Quantized High-Band LPG 457 tAugiet 452 High-Band Excitation SignA Linear Prediction 454 Combiner 422 Coefficient (LPC) Synthesis Fiter High-Band Modula,od Multiplier 410 Spectral Noise Mapping Synthesized Bitstream 482 Gain(b) -__on-Reference HIgh-Band 45R Non-Reference High-Band 424 Excitation 456 High-Bnd Target Channel Generator 412 Spectral Mapping Estimator 414 Spectral Mapping Qua finer rh 't 214 Spectral ) i on-Ref erence Non-Reference High-Band (]tame) Mapping Channel 459 460 Parameters High-Band Reference 462 Quantized Spectral flannel Indicator 440 FIG. 4 Mapping Pansmeters 466 (57) : A method includes selecting, at an encoder of a first device, a left channel or a right channel as a non-reference target channel based on a high-band reference channel indicator. The method also includes generating a synthesized non-reference high-band channel based on a non-reference high-band excitation corresponding to the non-reference target channel. The method also includes generating a high-band portion of the non-reference target channel. The method further includes estimating one or more spectral mapping parameters based on the synthesized non-reference high-band channel and the high-band portion of the non-reference target channel. The method also includes applying the one or more spectral mapping parameters to the synthesized non-reference high-band channel to generate a spectrally shaped synthesized non-reference high-band channel. The method further includes generating an encoded bitstream based on the one or more spectral mapping parameters and the spectrally shaped synthesized non-reference high-band channel. [Continued on next page] WO 2018/164805 Al MIDEDIMOMOIDEIREEMOMOHINIUMOIREOMEEN 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, 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：SG11201905527UA
公开(公告)日：2019-08-27
申请号：SG11201905527U
申请日：2018-01-31
Applicant: QUALCOMM INC
IPC: G10L19/008 , G10L19/022
Abstract: 364 Window and Overlap- Add 380 Stereo Cues L 162 Right Channel 366 /- 382 1 128 Window and Overlap- Add 126 Left Channel 164 Side-Band Bitstream 1.- Side-Band Decoder i 180 x 172 182 r 308 Transform 184, 186 [ 118 Up-Mixer Window 1 173 Stereo Parameter Interpolator r 306 355 352f r 172 354 r 309 Window Transform r 304 Mid-Band Bitstream Mid-Band Decoder \ ► _ 166 360 314 /362 f 316 Inverse Transform FIG. 3 Inverse Transform O 00 O O (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 09 August 2018 (09.08.2018) WIPO I PCT ill IIIIIl °mons °nolo DID Mo mil 110 111110 oimIE (10) International Publication Number WO 2018/144590 Al (51) International Patent Classification: GlOL 19/008 (2013.01) GlOL 19/022 (2013.01) (21) International Application Number: PCT/US2018/016216 (22) International Filing Date: 31 January 2018 (31.01.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/454,652 03 February 2017 (03.02.2017) US 15/884,136 30 January 2018 (30.01.2018) 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; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). ATTI, Venkatraman; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (74) Agent: TOLER, JEFFREY G.; 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: MULTI CHANNEL DECODING (57) : A method includes generating a windowed time-domain mid channel by applying two first asymmetric windows to a first frame of a time-domain mid channel and applying two second asymmetric windows to a second frame of the time-domain mid channel. The method includes transforming the windowed time-domain mid channel to a transform domain to generate sets of transform-domain mid channel data including first transform-domain mid channel data corresponding to a first mid channel window of the first frame and second transform-domain mid channel data corresponding to a second mid channel window of the first frame. The method includes performing an up-mix operation using the sets of transform-domain mid channel data, stereo parameters from the bit stream, and an interpolated parameter determined using an unevenly weighted interpolation between a first stereo parameter value associated with the first frame and a second stereo parameter value associated with the second frame. [Continued on next page] WO 2018/144590 Al MIDEDIMOMMIONER13010MOIVINEDIMOVOIS 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：AU2016343907B2
公开(公告)日：2019-06-27
申请号：AU2016343907
申请日：2016-09-14
Applicant: QUALCOMM INC
IPC: H04L1/00 , G10L19/005 , H04L12/66 , H04N21/60 , H04N21/65
Abstract: In a particular aspect, an apparatus includes a first network interface. The first network interface is configured to receive a packet via a packet-switched network. The packet may include a primary coding of a first audio frame and a redundant coding of a second audio frame. The apparatus further includes a processor. The processor is configured to generate a modified packet that includes one or more bits that indicate signaling information or packet decoding information. The signaling information or packet decoding information may correspond to decoding of at least one of the primary coding or the redundant coding. The apparatus further includes a second network interface configured to transmit the modified packet via a circuit-switched network.
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Patent Agency Ranking
公开(公告)号：AU2016343906B2
公开(公告)日：2019-06-27
申请号：AU2016343906
申请日：2016-09-14
Applicant: QUALCOMM INC
IPC: H04L1/00 , G10L19/005 , H04L12/66 , H04N21/60 , H04N21/65
Abstract: An apparatus includes a network interface configured to receive, via a circuit-switched network, a packet. The packet includes a primary coding of a first audio frame, redundant coding of a second audio frame, and one or more bits that indicate signaling information. The signaling information corresponds to a decode operation of at least one of the primary coding or the redundant coding. The apparatus further includes a decoder configured to decode a portion of the packet based on the signaling information.
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公开(公告)号：AU2017394680A1
公开(公告)日：2019-06-20
申请号：AU2017394680
申请日：2017-12-11
Applicant: QUALCOMM INC
IPC: G10L19/008
Abstract: A residual scaling unit is configured to determine a scaling factor for a residual channel based on an inter-channel mismatch value. The inter-channel mismatch value is indicative of a temporal alignment between a reference channel and a target channel. The residual scaling unit is further configured to scale (e.g., attenuate) the residual channel by the scaling factor to generate a scaled residual channel. A residual channel encoder is configured to encode the scaled residual channel as part of a bitstream.
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公开(公告)号：SG11201901942TA
公开(公告)日：2019-05-30
申请号：SG11201901942T
申请日：2017-09-22
Applicant: QUALCOMM INC
IPC: G10L19/008 , G10L19/022 , G10L19/26
Abstract: A device includes a receiver configured to receive an encoded bitstream from a second device. The encoded bitstream includes a temporal mismatch value determined based on a reference channel captured at the second device and a target channel captured at the second device. The device also includes a decoder configured to decode the encoded bitstream to generate a first frequency-domain output signal and a second frequency-domain output signal. The decoder is configured to perform inverse transform operations on the frequency-domain output signals to generate a first and second time-domain signals. Based on the temporal mismatch value, the decoder is configured to map the time-domain signals to a decoded target channel and a decoded reference channel. The decoder is also configured to perform a causal time-domain shift operation on the decoded target channel based on the temporal mismatch value to generate an adjusted decoded target channel.
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公开(公告)号：CA2986435C
公开(公告)日：2019-05-28
申请号：CA2986435
申请日：2016-05-26
Applicant: QUALCOMM INC
IPC: G10L21/038 , G10L19/18
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：AU2016278851B2
公开(公告)日：2019-05-16
申请号：AU2016278851
申请日：2016-05-26
Applicant: QUALCOMM INC
IPC: G10L21/038 , G10L19/18
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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