Apparatus and method for communication in broadcast system

    公开(公告)号:US11438095B2

    公开(公告)日:2022-09-06

    申请号:US16963098

    申请日:2019-01-21

    Abstract: The present disclosure relates to a communication apparatus and method for supporting a forward error correction scheme in a communication system. To this end, by means of a generation mode among a plurality of generation modes (ssbg_mode #0, #1, #2), a source symbol block having a plurality of source symbols is generated by using a source packet block having a plurality of source packets, and a repair symbol block for the generated source symbol block is generated by means of a forward error correction (FEC) scheme among a plurality of FEC schemes (FEC payload ID mode 0, FEC payload ID mode 1). A first FEC scheme (FEC payload ID mode 1) is applied to generate the repair symbol block, and in response to an occurrence of a discontinuity in packet sequence numbers, a repair packet may be generated to include length repair data and a repair FEC payload identifier (ID).

    Apparatus and method for processing audio

    公开(公告)号:US12062377B2

    公开(公告)日:2024-08-13

    申请号:US17722569

    申请日:2022-04-18

    CPC classification number: G10L19/008 G06N3/08 H04S3/008 H04S2400/01

    Abstract: An audio processing apparatus may obtain second audio signals corresponding to channels included in a second channel group from first audio signals corresponding to channels included in a first channel group, downsample at least one third audio signal corresponding to at least one channel identified based on a correlation with the second channel group from among the channels included in the first channel group, by using an artificial intelligence (AI) model, and generate a bitstream including the second audio signals corresponding to the channels included in the second channel group and the downsampled at least one third audio signal. The first channel group includes a channel group of an original audio signal, and the second channel group is constructed by combining at least two channels from among the channels included in the first channel group.

    Data packet transmission/reception apparatus and method

    公开(公告)号:US10361810B2

    公开(公告)日:2019-07-23

    申请号:US14981042

    申请日:2015-12-28

    Abstract: A method and apparatus are provided for recovering data efficiently even when data loss has occurred over a channel or network. The packet transmission method includes arranging a first transmission packet in a source symbol in a first region of a source block; arranging a second transmission packet in a space starting with an empty space of a last source symbol where the first transmission packet is arranged, remaining after arranging the first transmission packet; arranging information related to the second transmission packet in a second region of the source block; performing Forward Error Correction (FEC) encoding on the source block; and transmitting the encoded source block.

    Apparatus and method for transmitting/receiving packet in communication system
    8.
    发明授权
    Apparatus and method for transmitting/receiving packet in communication system 有权
    通信系统中发送/接收数据包的装置和方法

    公开(公告)号:US09473264B2

    公开(公告)日:2016-10-18

    申请号:US13867431

    申请日:2013-04-22

    CPC classification number: H04L1/004 H04L1/0057

    Abstract: A packet transmission/reception method for use in a communication system is provided. The method includes generating control information corresponding to Forward Error Correction (FEC), acquiring at least one source packet to be protected using the FEC, generating at least one repair symbol with at least one repair FEC payload ID and at least one source FEC payload ID according to the at least one source packet and the control information, and transmitting the at least one source packet, the at least one repair symbol with the at least one repair FEC payload ID, and the at least one source FEC payload ID.

    Abstract translation: 提供了一种在通信系统中使用的分组发送/接收方法。 该方法包括生成对应于前向纠错(FEC)的控制信息,使用FEC获取要被保护的至少一个源分组,用至少一个修复FEC有效载荷ID和至少一个源FEC有效载荷ID产生至少一个修复符号 根据所述至少一个源分组和所述控制信息,并且发送所述至少一个源分组,所述至少一个修复符号与所述至少一个修复FEC有效载荷ID和所述至少一个源FEC有效载荷ID。

    Packet transmission/reception apparatus and method using forward error correction scheme
    9.
    发明授权
    Packet transmission/reception apparatus and method using forward error correction scheme 有权
    分组发送/接收装置和使用前向纠错方案的方法

    公开(公告)号:US09043682B2

    公开(公告)日:2015-05-26

    申请号:US13777313

    申请日:2013-02-26

    Abstract: A packet transmission/reception apparatus and method is provided. The packet transmission method of the present invention includes acquiring a source payload including partial source symbols from a source block, generating a source packet including the source payload and an identifier (ID) of the source payload, generating a repair packet including a repair payload corresponding to the source payload and an ID of the repair payload, generating a Forward Error Correction (FEC) packet block including the source and repair packets, and transmitting the FEC packet block. The source payload ID includes a source payload sequence number incrementing by 1 per source packet. The packet transmission/reception method of the present invention is advantageous in improving error correction capability and network resource utilization efficiency.

    Abstract translation: 提供了分组发送/接收装置和方法。 本发明的分组传输方法包括从源块获取包括部分源符号的源有效载荷,生成包括源有效载荷的源分组和源有效载荷的标识符(ID),生成包括修复有效载荷对应的修复分组 到源有效载荷和修复有效载荷的ID,生成包括源和修复包的前向纠错(FEC)包块,并发送FEC包块。 源有效载荷ID包括每个源分组递增1的源有效载荷序列号。 本发明的分组发送/接收方法在提高纠错能力和网络资源利用效率方面是有利的。

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