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    SYSTEMS AND METHODS OF COMMUNICATING REDUNDANT FRAME INFORMATION
    42.
    发明专利
    SYSTEMS AND METHODS OF COMMUNICATING REDUNDANT FRAME INFORMATION 未知

    公开(公告)号：CA2925582C

    公开(公告)日：2022-01-04

    申请号：CA2925582

    申请日：2014-10-09

    Applicant: QUALCOMM INC

    Inventor： ATTI VENKATRAMAN S ,  RAJENDRAN VIVEK ,  KRISHNAN VENKATESH

    IPC: H04L1/00 ,  H04L1/08

    Abstract: A method includes receiving a second audio frame at a decoder. The second audio frame follows a first audio frame in an audio signal and includes a first number of bits allocated to primary coding information associated with the second audio frame, a second number of bits allocated to redundant coding information associated with the first audio frame, and an indicator of a frame type of the first audio frame. In response to a frame erasure condition associated with the first audio frame, the second number of bits is determined based on the indicator and used to decode the first audio frame. In clean channel conditions, the first audio frame is received and decoded based on primary coding bits in the first audio frame, and the first number of bits is determined based on the indicator and used to decode the second audio frame.

    High band excitation signal generation
    43.
    发明专利
    High band excitation signal generation 未知

    公开(公告)号：NZ724656A

    公开(公告)日：2021-12-24

    申请号：NZ72465615

    申请日：2015-03-31

    Applicant: QUALCOMM INC

    Inventor： RAJENDRAN VIVEK ,  VILLETTE STEPHANE ,  RAMADAS PRAVIN KUMAR ,  SINDER DANIEL J

    IPC: G10L19/24

    Abstract: A particular method includes determining, at a device, a voicing classification of an input signal. The input signal corresponds to an audio signal. The method also includes controlling an amount of an envelope of a representation of the input signal based on the voicing classification. The method further includes modulating a white noise signal based on the controlled amount of the envelope. The method also includes generating a high band excitation signal based on the modulated white noise signal.

    Gestión de audio de conferencia
    45.
    发明专利
    Gestión de audio de conferencia 未知

    公开(公告)号：ES2736878T3

    公开(公告)日：2020-01-08

    申请号：ES16715972

    申请日：2016-03-30

    Applicant: QUALCOMM INC

    Inventor： ATTI VENKATRAMAN S ,  SINDER DANIEL J ,  LEUNG NIKOLAI ,  RAJENDRAN VIVEK

    IPC: H04M3/56

    Abstract: Un procedimiento (600) para gestionar el audio durante una conferencia, con el procedimiento (600) que comprende: recibir (602), en una primera memoria intermedia (210) de un dispositivo móvil (102), una primera transmisión de audio (114) de un primer dispositivo (110) asociado con un primer participante de la conferencia; recibir (604), en una segunda memoria intermedia (220) del dispositivo móvil (102), una segunda transmisión de audio (124) de un segundo dispositivo (120) asociado con un segundo participante de la conferencia; caracterizado por generar (606) una señal de control (204) en un controlador de retardo (202) del dispositivo móvil (102), con la señal de control (204) proporcionada a la primera memoria intermedia (210) y a la segunda memoria intermedia (220) para sincronizar el primer audio de memoria intermedia (214) que se envía desde la primera memoria intermedia (210) con el segundo audio de memoria intermedia (224) que se envía desde la segunda memoria intermedia (220).

    SYSTEMS AND METHODS OF PERFORMING FILTERING FOR GAIN DETERMINATION
    46.
    发明专利
    SYSTEMS AND METHODS OF PERFORMING FILTERING FOR GAIN DETERMINATION 未知

    公开(公告)号：MY171188A

    公开(公告)日：2019-09-30

    申请号：MYPI2015702276

    申请日：2013-08-06

    Applicant: QUALCOMM INC

    Inventor： ATTI VENKATRAMAN SRINIVASA ,  KRISHNAN VENKATESH ,  RAJENDRAN VIVEK ,  VILLETTE STEPHANE PIERRE

    Abstract: A particular method includes determining (504), based on spectral information corresponding to an audio signal that includes a low-band portion and a high-band portion, that the audio signal includes a component corresponding to an artifact-generating condition. The method also includes filtering (506) the high-band portion of the audio signal and generating an encoded signal. Generating (508) the encoded signal includes determining gain information based on a ratio of a first energy corresponding to filtered high-band output to a second energy corresponding to the low-band portion to reduce an audible effect of the artifact-generating condition. Figure l

    ГЕНЕРАЦИЯ ВЫСОКОПОЛОСНОГО СИГНАЛА ВОЗБУЖДЕНИЯ
    50.
    发明专利
    ГЕНЕРАЦИЯ ВЫСОКОПОЛОСНОГО СИГНАЛА ВОЗБУЖДЕНИЯ 未知

    公开(公告)号：RU2683632C2

    公开(公告)日：2019-03-29

    申请号：RU2016142184

    申请日：2015-03-31

    Applicant: QUALCOMM INC

    Inventor： RAMADAS PRAVIN KUMAR ,  SINDER DANIEL J ,  VILLETTE STEPHANE PIERRE ,  RAJENDRAN VIVEK

    IPC: G10L19/08 ,  G10L19/24

    Abstract: Изобретениеотноситсяк средствамдлягенерациивысокополосногосигналавозбуждения. Техническийрезультатзаключаетсяв уменьшенииколичестваартефактовв невокализованнойобластивысокополосногосигнала. Извлекаютпараметрклассификациивокализованностивходногосигналанаосновепринятогобитовогопотока, причемвходнойсигналсоответствуетаудиосигналу. Управляютдиапазономчастотогибающейпредставлениявходногосигналанаоснованиипараметраклассификациивокализованности, причемупомянутымдиапазономчастотуправляютнаоснованиичастотысрезафильтранизкихчастот, применяемогок упомянутомупредставлениювходногосигнала. Модулируютсигналбелогошуманаоснованииуправляемогодиапазоначастотогибающей. Генерируютвысокополосныйсигналвозбуждения, соответствующийдекодированнойверсииаудиосигнала, наоснованиимодулированногосигналабелогошума. 4 н. и 26 з.п. ф-лы, 9 ил.

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