知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

80 records (took 0.041 seconds)

    Protocol overhead reduction for medium access control
    1.
    发明授权
    Protocol overhead reduction for medium access control 有权

    公开(公告)号：US12177721B2

    公开(公告)日：2024-12-24

    申请号：US17654401

    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: H04W28/06

    Abstract: A method, apparatus and computer-readable medium for transmitting a medium access control (MAC) protocol data unit (PDU) including one or more MAC service data units (SDUs) of a logical channel; and transmitting a first type of MAC subheader including or excluding first logical channel identifier (LCID) information and including or excluding first length information, wherein a first size of the first LCID information is equal to or smaller than a second size of second LCID information of a second type of MAC subheader that is different than the first type of MAC subheader, and a third size of the first length information is equal to or smaller than a fourth size of second length information of the second type of MAC subheader.

    Methods for increasing VoIP network coverage
    3.
    发明授权
    Methods for increasing VoIP network coverage 有权

    公开(公告)号：US10574830B2

    公开(公告)日：2020-02-25

    申请号：US15954587

    申请日：2018-04-16

    Applicant: QUALCOMM Incorporated

    Inventor： Vivek Rajendran ,  Nikolai Konrad Leung ,  Min Wang ,  Venkatraman Atti

    IPC: H04M7/00 ,  H04W36/00 ,  H04W24/08

    Abstract: The disclosure generally relates to various methods to increase network coverage with respect to Voice-over-Internet Protocol (VoIP) sessions and/or other voice-based multimedia services. In particular, when establishing a voice session, two or more terminals may perform a codec negotiation to exchange information related to supported multimedia codecs and/or codec modes, jitter buffer management (JBM), and packet loss concealment (PLC) capabilities. Based on the exchanged information, a message may be sent to a base station to indicate the maximum packet loss rate (PLR) for each terminal. Additional techniques may ensure that the terminals use the most robust codecs or codec modes that are available when nearing the edge of coverage to help avoid unnecessary and/or excessive handovers to different radio access technologies.

    Audio bandwidth selection
    4.
    发明授权
    Audio bandwidth selection 有权

    公开(公告)号：US10049684B2

    公开(公告)日：2018-08-14

    申请号：US15083717

    申请日：2016-03-29

    Applicant: QUALCOMM Incorporated

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

    IPC: G10L21/00 ,  G10L19/26 ,  G10L21/0316

    Abstract: A device includes a receiver configured to receive an audio frame of an audio stream. The device also includes a decoder configured to generate first decoded speech associated with the audio frame and to determine a count of audio frames classified as being associated with band limited content. The decoder is further configured to output second decoded speech based on the first decoded speech. The second decoded speech may be generated according to an output mode of the decoder. The output mode may be selected based at least in part on the count of audio frames.

    HIGH BAND EXCITATION SIGNAL GENERATION
    5.
    发明申请
    HIGH BAND EXCITATION SIGNAL GENERATION 审中-公开

    公开(公告)号：US20170270942A1

    公开(公告)日：2017-09-21

    申请号：US15611706

    申请日：2017-06-01

    Applicant: QUALCOMM Incorporated

    Inventor： Pravin Kumar Ramadas ,  Daniel J. Sinder ,  Stephane Pierre Villette ,  Vivek Rajendran

    IPC: G10L19/08 ,  G10L19/24

    CPC classification number: G10L19/08 ,  G10L19/24

    Abstract: A method includes extracting a voicing classification parameter of an audio signal and determining a filter coefficient of a low pass filter based on the voicing classification parameter. The method also includes filtering a low-band portion of the audio signal to generate a low-band audio signal and controlling an amplitude of a temporal envelope of the low-band audio signal based on the filter coefficient. The method also includes modulating a white noise signal based on the amplitude of the temporal envelope to generate a modulated white noise signal and scaling the modulated white noise signal based on a noise gain to generate a scaled modulated white noise signal. The method also includes mixing a scaled version of the low-band audio signal with the scaled modulated white noise signal to generate a high-band excitation signal that is used to generate a decoded version of the audio signal.

    DE-JITTER BUFFER UPDATE
    9.
    发明申请
    DE-JITTER BUFFER UPDATE 有权
    DE-JITTER BUFFER更新

    公开(公告)号：US20160308791A1

    公开(公告)日：2016-10-20

    申请号：US14829560

    申请日：2015-08-18

    Applicant: QUALCOMM Incorporated

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

    IPC: H04L12/861 ,  H04L12/26 ,  H04L7/00

    CPC classification number: H04L49/90 ,  G10L19/167 ,  H04J3/0632 ,  H04J3/0664 ,  H04L7/0016 ,  H04L12/56 ,  H04L43/106 ,  H04L65/608

    Abstract: A device includes a de-jitter buffer configured to receive a packet, the packet including first data and second data. The first data includes a partial copy of first frame data corresponding to a first frame of a sequence of frames. The second data corresponds to a second frame of the sequence of frames. The device also includes an analyzer configured to, in response to receiving the packet, generate a first frame receive timestamp associated with the first data. The analyzer is also configured to, in response to receiving the packet, generate a second frame receive timestamp associated with the second data. The first frame receive timestamp indicates a first time that is earlier than a second time indicated by the second frame receive timestamp.

    Abstract translation: 一种设备包括配置为接收分组的去抖动缓冲器，所述分组包括第一数据和第二数据。 第一数据包括对应于帧序列的第一帧的第一帧数据的部分副本。 第二数据对应于帧序列的第二帧。 该设备还包括分析器，其被配置为响应于接收到分组而生成与第一数据相关联的第一帧接收时间戳。 分析器还被配置为响应于接收到分组而生成与第二数据相关联的第二帧接收时间戳。 第一帧接收时间戳指示第一次早于由第二帧接收时间戳指示的第二时间。

    ENCODER SELECTION
    10.
    发明申请
    ENCODER SELECTION 有权
    编码器选择

    公开(公告)号：US20160293175A1

    公开(公告)日：2016-10-06

    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: G10L19/22 ,  G10L19/087 ,  G10L25/87 ,  G10L19/12

    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.

    Abstract translation: 设备包括耦合到第一分类器的第一分类器和第二分类器。 第一分类器被配置为输出指示作为语音帧或非语音帧的音频帧的分类的第一判定数据，基于与音频帧的第一似然性相关联的第一概率数据确定的第一判定数据为 并且基于与音频帧是非语音帧的第二似然性相关联的第二概率数据。 第二分类器被配置为基于第一概率数据，第二概率数据和第一判定数据输出第二判定数据，第二判定数据包括可用于编码音频的多个编码器的特定编码器的选择的指示 帧。

Patent Agency Ranking