公开(公告)号：US20130185062A1

公开(公告)日：2013-07-18

申请号：US13718797

申请日：2012-12-18

Applicant: Qualcomm Incorporated

Inventor： Venkatesh Krishnan ,  Daniel J. Sinder ,  Vivek Rajendran

IPC: G10L19/04

CPC classification number: G10L19/04 ,  G10L19/005 ,  G10L19/008 ,  G10L19/09 ,  G10L19/107 ,  H04L1/0009 ,  H04L1/0014 ,  H04L1/007 ,  H04L1/08

Abstract: Systems, methods, and apparatus as disclosed herein may be implemented to adjust criticality thresholds for speech frames, based on channel conditions. Such a threshold may be used to control retransmission frequency in response to changes in channel state.

Abstract translation: 可以实现本文公开的系统，方法和装置，以基于信道条件来调整语音帧的临界阈值。 这样的阈值可以用于响应于信道状态的变化来控制重发频率。

公开(公告)号：US12132811B2

公开(公告)日：2024-10-29

申请号：US17654402

申请日：2022-03-10

Applicant: QUALCOMM Incorporated

Inventor： Toru Uchino ,  Umesh Phuyal ,  Bharat Shrestha ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Vivek Rajendran

IPC: H04L69/22 ,  H04L65/65 ,  H04L69/18 ,  H04W36/00

CPC classification number: H04L69/22 ,  H04L65/65 ,  H04L69/18 ,  H04W36/0072

Abstract: A receiver receives a first message including a first PDCP SN. The receiver may receive a second message including a second PDCP SN. The receiver may derive a second RTP SN based on at least one of a first RTP SN of the first message, the first PDCP SN, the second PDCP SN, or an RTP SN field of a second PDCP header composing the second message.

公开(公告)号：US11910344B2

公开(公告)日：2024-02-20

申请号：US16249754

申请日：2019-01-16

Applicant: QUALCOMM Incorporated

Inventor： Venkatraman S. Atti ,  Daniel J. Sinder ,  Nikolai Leung ,  Vivek Rajendran

IPC: H04W56/00 ,  H04L43/087 ,  H04M3/56 ,  H04S7/00 ,  H04R29/00 ,  H04L65/65 ,  H04W88/02 ,  H04W80/04

CPC classification number: H04W56/0045 ,  H04L43/087 ,  H04L65/65 ,  H04M3/562 ,  H04M3/568 ,  H04R29/007 ,  H04S7/00 ,  H04S2420/01 ,  H04W80/04 ,  H04W88/02

Abstract: A method for managing audio during a conference includes steering, at a spatial steering processor of a mobile device, first decoded audio to be projected from a speaker at a first angle. The method also includes steering, at the spatial steering processor, second decoded audio to be projected from the speaker at a second angle. The first decoded audio corresponds to a decoded version of a first audio stream from a first device associated with a first participant of the conference, and the second decoded audio corresponds to a decoded version of a second audio stream from a second device associated with a second participant of the conference. The first decoded audio is synchronized with the second decoded audio.

公开(公告)号：US10225814B2

公开(公告)日：2019-03-05

申请号：US15083974

申请日：2016-03-29

Applicant: QUALCOMM Incorporated

Inventor： Venkatraman S. Atti ,  Daniel J. Sinder ,  Nikolai Leung ,  Vivek Rajendran

IPC: H04M3/56 ,  H04W56/00 ,  H04L29/06 ,  H04L12/26 ,  H04S7/00 ,  H04R29/00 ,  H04W88/02 ,  H04W80/04

Abstract: A method for managing audio during a conference includes receiving, at a first buffer of a mobile device, a first audio stream from a first device associated with a first participant of the conference. The method also includes receiving, at a second buffer of the mobile device, a second audio stream from a second device associated with a second participant of the conference. The method further includes generating a control signal at a delay controller of the mobile device. The control signal is provided to the first buffer and to the second buffer to synchronize first buffered audio that is output from the first buffer with second buffered audio that is output from the second buffer.

公开(公告)号：US20180342255A1

公开(公告)日：2018-11-29

申请号：US16054931

申请日：2018-08-03

Applicant: QUALCOMM Incorporated

Inventor： Venkatraman S. Atti ,  Venkata Subrahmanyam Chandra Sekhar Chebiyyam ,  Vivek Rajendran

IPC: G10L19/26

Abstract: A device includes a receiver configured to receive an audio frame of an audio stream. The audio frame includes information that indicates a coded bandwidth of the audio frame. The device also includes a decoder configured to generate first decoded speech associated with the audio frame and to determine an output mode of the decoder based at least in part on the information that indicates the coded bandwidth. A bandwidth mode indicated by the output mode of the decoder is different than a bandwidth mode indicated by the information that indicates the coded bandwidth. The decoder is further configured to output second decoded speech based on the first decoded speech. The second decoded speech is generated according to an output mode of the decoder.

公开(公告)号：US09886963B2

公开(公告)日：2018-02-06

申请号：US15083867

申请日：2016-03-29

Applicant: QUALCOMM Incorporated

Inventor： Venkatraman S. Atti ,  Venkata Subrahmanyam Chandra Sekhar Chebiyyam ,  Vivek Rajendran ,  Subasingha Shaminda Subasingha

IPC: G10L19/00 ,  G10L19/22 ,  G10L19/12 ,  G10L19/087 ,  G10L25/87 ,  G10L19/20 ,  G10L25/27

CPC classification number: G10L19/22 ,  G10L19/087 ,  G10L19/12 ,  G10L19/20 ,  G10L25/27 ,  G10L25/87

Abstract: A device includes a first classifier and a second classifier coupled to the first classifier. The first classifier is configured to output first decision data that indicates a classification of an audio frame as a speech frame or a non-speech frame, the first decision data determined based on first probability data associated with a first likelihood of the audio frame being the speech frame and based on second probability data associated with a second likelihood of the audio frame being the non-speech frame. The second classifier is configured to output second decision data based on the first probability data, the second probability data, and the first decision data, the second decision data includes an indication of a selection of a particular encoder of multiple encoders available to encode the audio frame.

公开(公告)号：US09837094B2

公开(公告)日：2017-12-05

申请号：US15174843

申请日：2016-06-06

Applicant: QUALCOMM Incorporated

Inventor： Subasingha Shaminda Subasingha ,  Venkatraman Atti ,  Vivek Rajendran

IPC: G10L19/16 ,  G10L19/005 ,  G10L19/07 ,  G10L19/087 ,  G10L19/24 ,  G10L21/038

CPC classification number: G10L19/167 ,  G10L19/005 ,  G10L19/07 ,  G10L19/087 ,  G10L19/24 ,  G10L21/038

Abstract: A method includes determining an error condition during a bandwidth transition period of an encoded audio signal. The error condition corresponds to a second frame of the encoded audio signal, where the second frame sequentially follows a first frame in the encoded audio signal. The method also includes generating audio data corresponding to a first frequency band of the second frame based on audio data corresponding to the first frequency band of the first frame. The method further includes re-using a signal corresponding to a second frequency band of the first frame to synthesize audio data corresponding to the second frequency band of the second frame.

公开(公告)号：US09712287B2

公开(公告)日：2017-07-18

申请号：US14809085

申请日：2015-07-24

Applicant: QUALCOMM Incorporated

Inventor： Venkatesh Krishnan ,  Vivek Rajendran ,  Sandip Sarkar ,  Subasingha Shaminda Subasingha ,  Venkatraman S. Atti

IPC: H04L1/18 ,  H04L1/00 ,  H04L1/08

CPC classification number: H04L1/08 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/008 ,  H04L1/1812 ,  H04L1/1835

Abstract: A receiver is configured to receive packets that correspond to at least a subset of a sequence of packets and that include error correction data. The error correction data of a first packet of the packets includes a partial copy of a second packet. A buffer is configured to store the packets. An analyzer is configured to determine whether a first particular packet of the sequence is missing from the buffer, to determine whether a partial copy of the first particular packet is stored in the buffer as error correction data in a second particular packet, to update a value based at least in part on whether the first particular packet is missing from the buffer and the partial copy of the first particular packet is stored in the buffer, and to adjust an error recovery parameter based at least in part on the value.

公开(公告)号：US09711156B2

公开(公告)日：2017-07-18

申请号：US13959188

申请日：2013-08-05

Applicant: QUALCOMM Incorporated

Inventor： Venkatraman Srinivasa Atti ,  Venkatesh Krishnan ,  Vivek Rajendran ,  Stephane Pierre Villette

IPC: G10L21/038 ,  G10L19/03 ,  G10L21/0388 ,  G10L19/24 ,  G10L21/0208 ,  G10L21/0216 ,  G10L19/07

CPC classification number: G10L19/03 ,  G10L19/07 ,  G10L19/24 ,  G10L21/0208 ,  G10L21/0216 ,  G10L21/0388

Abstract: A particular method includes determining, 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 the high-band portion of the audio signal and generating an encoded signal. Generating 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.

公开(公告)号：US20170111856A1

公开(公告)日：2017-04-20

申请号：US15273280

申请日：2016-09-22

Applicant: QUALCOMM Incorporated

Inventor： Vivek Rajendran ,  Daniel Jared Sinder ,  Venkatraman Atti ,  Saurabha Tavildar ,  Nikolai Leung ,  Alireza Heidari

IPC: H04W52/02 ,  H04L12/815 ,  H04L5/00 ,  H04L12/801

CPC classification number: H04W52/0203 ,  G10L19/005 ,  G10L19/22 ,  H04L5/006 ,  H04L45/128 ,  H04L47/23 ,  H04L47/2416 ,  H04L47/29 ,  H04L47/32 ,  H04L65/1069 ,  H04L65/601 ,  H04L65/608 ,  H04L65/80 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/25

Abstract: A method of controlling frame transmissions includes determining, at a first device, a frame erasure rate for a communication session between the first device and at least a second device. The method also includes comparing the frame erasure rate to an erasure threshold. The method further includes discarding an active speech frame if the frame erasure rate satisfies the erasure threshold.