# US 10,375,436 B2 · Decoding apparatus, demultiplexing apparatus, decoding method, and demultiplexing method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,375,436 B2 - Document ID: US10375436B2 - Status: Granted - Kind: B2 - Application number: 15/430,675 - Filed: 2017-02-13 - Published: 2017-06-01 - Granted: 2019-08-06 - Earliest claimed: 2014-08-27 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Noritaka Iguchi; Tadamasa Toma - Web page: https://patentgrep.com/patent/US10375436B2 ## CPC - H04N 21/434: Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream {(demultiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00)} - H04N 21/4302: {Content synchronisation processes, e.g. decoder synchronisation} - H04N 21/4305: {Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets (arrangements for synchronising receiver with transmitter by comparing receiver clock with transmitter clock H04L7/0012; arrangements for synchronising receiver with transmitter wherein the receiver takes measures against momentary loss of synchronisation H04L7/0083)} - H04N 21/64322: {IP} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A reception apparatus including a decoding apparatus and a demultiplexing apparatus for identifying a packet with clock information. The decoding apparatus receives a transfer frame, which stores second transfer units containing one or more first transfer units obtained by multiplexing contents. A decoder in the decoding apparatus acquires the first transfer units by decoding the transfer frame, and outputs the first transfer units to the demultiplexing apparatus. The demultiplexing apparatus acquires content by demultiplexing the first transfer units. Additionally, a heading first transfer unit positioned at a head within a heading second transfer unit, which is positioned at a head within the transfer frame, contains reference clock information. The decoder generates information for identifying the heading first transfer unit and outputs the information to the demultiplexing apparatus. ## Claims ### Claim 1 A reception apparatus comprising: a decoding apparatus; and a demultiplexing apparatus, the decoding apparatus including: a receiver, which in operation, receives a transfer frame storing a plurality of second transfer units, each second transfer unit of the plurality of second transfer units containing one or more first transfer units obtained by multiplexing content; and a decoder, which in operation, acquires a plurality of first transfer units by decoding the transfer frame, the decoder outputting the plurality of first transfer units to the demultiplexing apparatus, wherein a heading first transfer unit positioned at a head within a heading second transfer unit, which is positioned at a head within the transfer frame, contains reference clock information, the heading first transfer unit being included among the plurality of first transfer units and the heading second transfer unit being included among the plurality of second transfer units, and the decoder, in operation, generates information for identifying the heading first transfer unit and outputs the information to the demultiplexing apparatus, the demultiplexing apparatus, which in operation, acquires the plurality of first transfer units from the decoding apparatus, and the demultiplexing apparatus including a demultiplexer, which in operation, acquires the content by demultiplexing the plurality of first transfer units, wherein when a first transfer unit of plurality of first transfer units includes reference clock information, management information indicates the presence of the reference clock information, and the demultiplexer identifies the first transfer unit among the plurality of first transfer units containing the reference clock information based on the management information and acquires the reference clock information from the first transfer unit. ### Claim 2 (depends on 1) The reception apparatus according to claim 1, wherein the decoder stores the information indicating that the heading first transfer unit contains the reference clock information as management information of the heading first transfer unit. ### Claim 3 (depends on 1) The reception apparatus according to claim 1, wherein each first transfer unit of the plurality of the first transfer units contains an Internet Protocol (IP) packet that stores content. ### Claim 4 (depends on 3) The reception apparatus according to claim 3, wherein the content is stored in a Moving picture expert group Media Transport (MMT) packet within the IP packet. ### Claim 5 (depends on 1) The reception apparatus according to claim 1, wherein each first transfer unit of the plurality of first transfer units is a variable-length transfer unit, and each second transfer unit of the plurality of second transfer units is a fixed-length transfer unit. ### Claim 6 (depends on 1) The reception apparatus according to claim 1, wherein each first transfer unit of the plurality of first transfer units is a Type Length Value (TLV) packet, each second transfer unit of the plurality of second transfer units is a slot under an advanced broadband satellite (BS) transfer scheme, and the frame is a transfer slot under the advanced BS transfer scheme. ### Claim 7 (depends on 1) The reception apparatus according to claim 1, wherein the reference clock information is Network Time Protocol (NTP) time information. ### Claim 8 A reception method for a reception apparatus including a decoding apparatus and a demultiplexing apparatus, the reception method comprising: in the decoding apparatus, receiving a transfer frame that stores a plurality of second transfer units, each second transfer unit of the plurality of second transfer units containing one or more first transfer units obtained by multiplexing content, a heading first transfer unit positioned at a head within a heading second transfer unit, which is positioned at a head within the transfer frame, contains reference clock information, the heading first transfer unit being included among the plurality of first transfer units and the heading second transfer unit being included among the plurality of second transfer units; acquiring the plurality of first transfer units by decoding the transfer frame; generating management information for identifying the heading first transfer unit; and outputting the plurality of first transfer units and the management information to a demultiplexing apparatus that acquires the contents by demultiplexing the plurality of first transfer units, wherein in the demultiplexing apparatus, acquiring the plurality of first transfer units from the decoding apparatus, and acquiring the content by demultiplexing the plurality of first transfer units, and when a first transfer unit of plurality of first transfer units includes reference clock information, management information indicates the presence of the reference clock information, and the demultiplexing apparatus identifies the first transfer unit among the plurality of first transfer units containing the reference clock information based on the management information, and acquires the reference clock information from the first transfer unit.