APPARATUS AND METHOD OF TRANSMITTING/RECEIVING BROADCAST DATA
    71.
    发明申请
    APPARATUS AND METHOD OF TRANSMITTING/RECEIVING BROADCAST DATA 审中-公开
    发送/接收广播数据的装置和方法

    公开(公告)号:US20130136193A1

    公开(公告)日:2013-05-30

    申请号:US13690808

    申请日:2012-11-30

    Abstract: An encoding apparatus and a method of encoding a source block including different types of data payloads are provided. The method includes dividing the source block into a predetermined number M of sub blocks, generating a predetermined number P1 of base parity payloads that correspond to each of the predetermined number M of sub blocks by performing first Forward Error Correction (FEC) encoding on each of the predetermined number M of sub blocks, generating a predetermined number P2 of extended parity payloads that correspond to the source block by performing second FEC encoding on a particular type of data payloads among data payloads that make up the source block, and configuring a source coded block based on a predetermined number N of sub coded blocks including the predetermined number M of sub blocks and the predetermined number P1 of base parity payloads generated.

    Abstract translation: 提供了一种对包括不同类型的数据有效载荷的源块进行编码的编码装置和方法。 该方法包括将源块划分成预定数量的M个子块,通过在每个子块上执行第一前向纠错(FEC)编码来产生与预定数量M个子块中的每一个对应的基本奇偶校验有效载荷的预定数量P1 预定数量M个子块,通过对构成源块的数据有效载荷中的特定类型的数据有效载荷执行第二FEC编码,并且生成源编码的预定数量的M,生成与源块对应的预定数量的扩展奇偶校验有效载荷P2 基于预定数量N的子编码块,包括子块的预定数量M和生成的基本奇偶校验有效载荷的预定数量P1。

    METHOD AND APPARATUS FOR CHANNEL ENCODING AND DECODING IN A COMMUNICATION SYSTEM USING A LOW-DENSITY PARITY CHECK CODE

    公开(公告)号:US20210314002A1

    公开(公告)日:2021-10-07

    申请号:US17353130

    申请日:2021-06-21

    Abstract: An apparatus is provided for channel encoding in a communication system using an LDPC code. The apparatus includes at least one processor configured to encode input bits using a Bose-Chaudhuri-Hocquenghem (BCH) code, shorten one or more bits of the encoded input bits according to a number of bit groups to be shortened and an order among a plurality of orders according to which the bit groups are shortened, wherein the number of bit groups to be shortened is based on a number of bits to be shortened which is based on a number of the encoded input bits, encode information bits including the encoded input bits and the shortened one or more bits, using an LDPC code to generate parity bits, and puncture one or more bits in the parity bits based on a puncturing parameter among puncturing parameters; and a transmitter configured to transmit a signal that is generated from the encoded information bits based on the punctured one or more bits. The plurality of orders are based on the puncturing parameters and include a first order and a second order that is different from the first order.

    MULTIMEDIA SERVICE CONTENT PROVIDING DEVICE AND METHOD

    公开(公告)号:US20210136425A1

    公开(公告)日:2021-05-06

    申请号:US16488828

    申请日:2018-03-29

    Abstract: The present disclosure relates to a method and device for receiving a content by a terminal device. The method for receiving a content by a terminal device comprises the steps of: transmitting a query message requesting content-related information to a first server; receiving a response message including the content-related information from the first server; on the basis of the response message, requesting a content from a second server corresponding to the content-related information; and receiving the content from the second server, wherein the content-related information includes internet protocol (IP) addresses of the second server, pieces of port information, and pieces of media information relating to a content.

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING PACKET IN COMMUNICATION SYSTEM

    公开(公告)号:US20200351213A1

    公开(公告)日:2020-11-05

    申请号:US16935672

    申请日:2020-07-22

    Abstract: The present invention relates to a method for transmitting a packet in a communication system, the method comprising: generating drop information indicating at least one source packet to be dropped among source packets to be transmitted and whether or not to drop each of the other source packets except the at least one source packet; performing forward error correction (FEC) encoding on the drop information and the other source packets except the at least one source packet; generating a repair packet comprising repair data for restoring the drop information and a repair symbol for restoring the other source packets except the at least one source packet; and transmitting the other source packets except the at least one source packet and the repair packet.

    TRANSMITTING APPARATUS AND SIGNAL PROCESSING METHOD THEREOF

    公开(公告)号:US20190306286A1

    公开(公告)日:2019-10-03

    申请号:US16446159

    申请日:2019-06-19

    Abstract: A transmitting apparatus, a receiving apparatus, and a method of signal processing are provided. The transmitting apparatus includes at least one processor configured to implement: a packet generator which generates a packet including a header and a payload, based on an input stream; and a signal processor which signal-processes the generated packet. The header includes a base header, and the base header includes various fields indicating at least one of a packet type, and a value indicating that the packet transmits one single complete input packet, a segment of an input packet, or a plurality of input packets. The fields included in the base header may also indicate presence of an additional header and a substream identifier.

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA PACKET IN MULTIMEDIA SYSTEM

    公开(公告)号:US20190245951A1

    公开(公告)日:2019-08-08

    申请号:US15999060

    申请日:2017-02-17

    CPC classification number: H04L69/324 H04L12/64 H04L47/34 H04L65/607 H04L69/22

    Abstract: Disclosed is a method for receiving a data packet by a receiving apparatus in a multimedia system, the method comprising: receiving the data packet; obtaining, from a payload header of the data packet, a fragment indicator including information about fragmentation of a data unit in a payload of the data packet and a fragment counter indicating a number of at least one payload containing at least one fragment of the data unit succeeding the payload; and identifying that at least one number indicated by the fragment counter is to be reused in a case that the fragment indicator includes a value indicating that the payload contains a fragment of the data unit that is neither a first nor a last fragment, and the fragment counter indicates a number indicating that there is no at least one payload containing the at least one fragment of the data unit succeeding the payload, wherein a total number of fragments of the data unit is larger than a maximum number indicated by the fragment counter.

Patent Agency Ranking