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    • 3. 发明申请
    • METHOD FOR THE SERIAL TRANSFER OF DATA BETWEEN TWO ELECTRONIC BUS STATIONS AND COMMUNICATION SYSTEM
    • 两台电子总线站和通信系统之间数据的串行传输方法
    • WO2003019400A1
    • 2003-03-06
    • PCT/EP2002/008974
    • 2002-08-10
    • THOMSON LICENSING S.A.LEUNG, FrankenAU, MatthewCHAN, MichaelTSE, Lawrence
    • LEUNG, FrankenAU, MatthewCHAN, MichaelTSE, Lawrence
    • G06F13/42
    • G06F13/4286
    • The invention relates to a simple serial data transfer method for the exchange of data between two electronic bus stations (33, 32). The bus connection consists of two lines wherein the first line is dedicated to data/control signals and a second line (19) is dedicated to a power supply voltage. A data transfer from the transmitting station (33) to the receiving station (32) is started by pulling the first line to an activated potential for a first period of time (T active ). After elapse of the first period of time (Tactive) the transmitting station leaves said first line (22) inactive for a second period of time (T active ). The transmitting station commences data transmission via said first and second line after elapse of said second period of time (T active ). Preferably, data is transferred in a number of blocks in the data frame. The first block concerns a synchronization block and the last block is a checksum block. An acknowledgement is made at the end of a data frame simply by pulling the first line (22) to its activated potential through the receiving station (32) for another period of time (Tack). A corresponding communication system is also disclosed. The data transfer method as well as the corresponding communication system can be used in consumer electronic products like portable devices where the portable devices are equipped with a wired remote control (4). Data transfer between main microprocessor in the portable device and a remote microprocessor in the remote controller will be made in accordance with the invention.
    • 本发明涉及一种用于在两个电子总线站(33,32)之间交换数据的简单串行数据传输方法。 总线连接由两条线组成,其中第一条线专用于数据/控制信号,第二条线(19)专用于电源电压。 通过将第一行拉到第一时间段(Tactive)的激活电位来启动从发送站(33)到接收站(32)的数据传输。 在经过第一时间段(Tactive)之后,发送站离开所述第一行(22)在第二时段(Tactive)不活动。 发送站在经过所述第二时间段(Tactive)之后经由所述第一和第二行开始数据传输。 优选地,数据在数据帧中的多个块中传送。 第一个块涉及同步块,最后一个块是校验和块。 在数据帧结束时,只需将第一行(22)通过接收站(32)拉出另一段时间(Tack)的激活电位就可以进行确认。 还公开了相应的通信系统。 数据传输方法以及对应的通信系统可以用于诸如便携式设备配备有线遥控器的便携式设备的消费电子产品中(4)。 将根据本发明制造便携式设备中的主微处理器与遥控器中的远程微处理器之间的数据传输。