Low power physical layer driver topologies

    公开(公告)号:US10833899B2

    公开(公告)日:2020-11-10

    申请号:US16526332

    申请日:2019-07-30

    摘要: System, methods and apparatus are described that facilitate transmission of data, particularly between two devices within electronic equipment. Transmission lines are selectively terminated in an N-phase polarity encoded transmitter when the transmission lines would otherwise be undriven. Data is mapped to a sequence of symbols to be transmitted on a plurality of wires. The sequence of symbols is encoded in three signals. A first terminal of a plurality of terminals may be driven such that transistors are activated to couple the first terminal to first and second voltage levels. The first terminal may further be driven such that a dedicated transistor is activated to couple the first terminal to an intermediate voltage level.

    Transmitting device, transmitting method, and communication system

    公开(公告)号:US10686443B2

    公开(公告)日:2020-06-16

    申请号:US16313420

    申请日:2017-06-08

    摘要: A transmitting device of the present disclosure includes: a voltage generator that generates a predetermined voltage; a first driver including a first sub-driver and a second sub-driver, the first dub-driver that includes a first switch provided on a path from a first power source to a first output terminal, a second switch provided on a path from a second power source to the first output terminal, and a third switch provided on a path from the voltage generator to the first output terminal, and is allowed to set a voltage state of the first output terminal to any of a predetermined number of voltage states which are three or more voltage states, and the second sub-driver that is allowed to adjust a voltage in each of the voltage states of the first output terminal; and a controller that controls an operation of the first driver to perform emphasis.

    Baud rate tracking and compensation apparatus and method

    公开(公告)号:US10511464B2

    公开(公告)日:2019-12-17

    申请号:US16128884

    申请日:2018-09-12

    摘要: Disclosed is a baud rate tracking and compensation apparatus comprising: a clock generating component generating a clock; a sampling circuit sampling a reception signal according to the clock and thereby generating a sampled result, and the sampling circuit generating a transition notification signal when the sampled result indicates a transition of the reception signal; a clock counting circuit counting cycles of the clock between a first transition of the reception signal and a second transition of the reception signal according to the clock and the transition notification signal; a bit counting circuit counting bit(s) between the first transition and the second transition according to the clock and a bit cycle; and a calculation circuit dividing the number of the cycles by the number of the bit(s) to obtain a calculation value, and then updating the bit cycle according to the calculation value.

    Reception device, reception method, and communication system

    公开(公告)号:US10511463B2

    公开(公告)日:2019-12-17

    申请号:US15752379

    申请日:2016-08-12

    申请人: Sony Corporation

    发明人: Hiroo Takahashi

    IPC分类号: H04L25/493 H04L1/00

    摘要: A reception device according to the present disclosure includes: a receiver that generates a symbol signal indicating a sequence of symbols on the basis of a plurality of transmission signals; a transition signal generator that generates a transition signal indicating a sequence of symbol transitions on the basis of the symbol signal; and a converter that repeats an operation of converting transition data including a predetermined number of the symbol transitions into reception data to convert the sequence of the symbol transitions into a sequence of reception data, and generates, in a case where the sequence of the symbol transitions includes first transition data that is not convertible into the reception data, candidate data as a candidate of the reception data on the basis of the first transition data.

    Low-skew communication system
    6.
    发明授权

    公开(公告)号:US10069431B2

    公开(公告)日:2018-09-04

    申请号:US14894538

    申请日:2014-06-17

    摘要: The invention generally relates to power converters, and more particularly to a communications method for controlling at least one power switching device of a power converter, a communications system for a power converter, and a power converter comprising the communications system. For example there is provided a communications method for controlling at least one power switching device of a power converter, the method comprising: inputting a signal to a transmit end of a communications link; inputting data to the transmit end of the communications link; determining whether the signal comprises a transition; when said determination indicates that the signal comprises a transition, transmitting the signal comprising the transition into a communications channel of the communications link, wherein the transmitted signal is delayed by a predetermined time delay relative to the inputted signal, said predetermined time delay to allow said determining; transmitting the data on the communications channel, wherein when said determination indicates that the signal comprises a transition the transmitting the data is delayed until after said transmitting the signal; and if the signal has been transmitted, receiving the transmitted signal at the receive end of the communications link and controlling at least one said power switching device dependent on said received signal.

    Data Processing Method and Data Processing Apparatus

    公开(公告)号:US20170310529A1

    公开(公告)日:2017-10-26

    申请号:US15644350

    申请日:2017-07-07

    IPC分类号: H04L27/38 H04L25/493 H04L1/00

    摘要: A data processing method and an apparatus, where the method includes receiving m data streams using m receive ports respectively, where the m data streams include m×m data units, and the m×m data units form an m-order matrix A, keeping a location of one element in each row in the matrix A unchanged and moving remaining m−1 elements to remaining m−1 rows respectively in order to form an m-order matrix B, where a column number of each element in the remaining m−1 elements in the matrix A before the element is moved equals a column number of the element in the remaining m−1 elements in the matrix B after the element is moved, and sending using m transmit ports, the m×m elements in the matrix B to m different levels of a pulse amplitude modulation (PAM) circuit respectively for performing modulation.