发明申请
US20090193284A1 METHODS FOR SYNCHRONIZING APPLICATIVE CLOCK SIGNALS IN A SYNCHRONOUS COMMUNICATIONS NETWORK, CORRESPONDING EMITTER AND RECEIVER DEVICES, COMPUTER-READABLE STORAGE MEANS
有权
用于同步同步通信网络中的应用时钟信号的方法,相应的发射器和接收器装置,计算机可读存储装置
- 专利标题: METHODS FOR SYNCHRONIZING APPLICATIVE CLOCK SIGNALS IN A SYNCHRONOUS COMMUNICATIONS NETWORK, CORRESPONDING EMITTER AND RECEIVER DEVICES, COMPUTER-READABLE STORAGE MEANS
- 专利标题(中): 用于同步同步通信网络中的应用时钟信号的方法,相应的发射器和接收器装置,计算机可读存储装置
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申请号: US12351278申请日: 2009-01-09
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公开(公告)号: US20090193284A1公开(公告)日: 2009-07-30
- 发明人: Arnaud Closset , Emmanuel Raguet
- 申请人: Arnaud Closset , Emmanuel Raguet
- 申请人地址: JP Tokyo
- 专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人地址: JP Tokyo
- 优先权: FR08/50441 20080124
- 主分类号: G06F1/04
- IPC分类号: G06F1/04 ; G06F15/16
摘要:
A method for transmitting information is proposed, enabling a synchronization of applicative clocks signals between a transmission device and at least one reception device connected to a communications network. For each stream of a source application, the transmission device: writes to a buffer memory associated with the stream, at the rate of a source applicative clock, pieces of applicative data of the stream coming from the source application, transmits, via the network, pieces of applicative data of the stream at the rate of the network clock. For at least one stream of the source application, the transmission device performs the following steps upon detection of a clock adjustment event: determining a piece of time offset information between a starting instant of a current network cycle and an instant of writing one of the pieces of applicative data of the stream, called a reference piece of data, to the buffer memory associated with the stream; determining a piece of information on position of the reference piece of data from among the pieces of applicative data of this stream to be transmitted via the network during a determined network cycle; transmission on the communications network of the information on time offset and position during the same network cycle as the one in which the reference piece of data is transmitted.Methods for synchronizing applicative clock signals in a synchronous communications network, corresponding emitter and receiver devices, computer-readable storage means.
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