Pulse width modulation data recovery device and driving method thereof
    6.
    发明授权
    Pulse width modulation data recovery device and driving method thereof 有权
    脉宽调制数据恢复装置及其驱动方法

    公开(公告)号:US09407479B2

    公开(公告)日:2016-08-02

    申请号:US14710713

    申请日:2015-05-13

    CPC classification number: H04L25/4902 H04L7/0331 H04L25/0272

    Abstract: A pulse width modulation (PWM) data recovery device includes a differential-to-single (DTS) circuit configured to generate a PWM bit using a differential data signal including a differential positive data signal and a differential negative data signal, and an alignment buffer configured to activate a bit lock signal by detecting a synch pattern, recover symbol data by receiving the PWM bit in synchronization with one of the differential positive data signal and the differential negative data signal, and transmit the symbol data in synchronization with a reference clock.

    Abstract translation: 脉冲宽度调制(PWM)数据恢复装置包括差分到单(DTS)电路,其被配置为使用包括差分正数据信号和差分负数据信号的差分数据信号产生PWM位,以及配置 通过检测同步模式来激活位锁定信号,通过与差分正数据信号和差分负数据信号之一同步地接收PWM位来恢复符号数据,并且与参考时钟同步地发送符号数据。

    Signal receiving circuit and operation method thereof

    公开(公告)号:US10673562B2

    公开(公告)日:2020-06-02

    申请号:US16257249

    申请日:2019-01-25

    Abstract: A signal receiving circuit may include a receiving equalizer and a sequence estimator. The receiving equalizer may be configured to compensate an inter-symbol interference in a signal from an external to output an equalization data, based on a receiving signal from an outside. The sequence estimator may be configured to determine a termination symbol, based on the equalization data, to perform a decoding on the receiving signal, based on the determined termination symbol, and to output the decoded receiving signal as a sequence data.

    Eye opening measurement circuit calculating difference between sigma levels, receiver including the same, and method for measuring eye opening

    公开(公告)号:US10466301B1

    公开(公告)日:2019-11-05

    申请号:US16181241

    申请日:2018-11-05

    Abstract: A receiver includes a sampler that samples first voltage levels corresponding to a first logical value of data and second voltage levels corresponding to a second logical value of the data, based on a sampling clock. An equalizer receives and adjusts the first and second voltage levels. A clock and data recovery circuit recovers the sampling clock, based on the first and second voltage levels from the equalizer. An eye opening measurement circuit: (1) tracks a first sigma level by a first step unit depending on upper voltage levels greater than a first reference voltage level among the first voltage levels, (2) tracks a second sigma level by a second step unit depending on lower voltage levels less than a second reference voltage level among the second voltage levels, and (3) calculates a difference between the first sigma level and the second sigma level.

    Data interface and data transmission method

    公开(公告)号:US09658643B2

    公开(公告)日:2017-05-23

    申请号:US14623069

    申请日:2015-02-16

    CPC classification number: G06F1/08 G06F13/4068

    Abstract: A data interface includes a first sampler sampling a first bitset and a second sampler sampling a second bitset. The first bitset includes a first bit which is included in a first image data and a third bit which is included in a second image, and the second bitset includes a second bit which is included in the first image data and is a higher-order bit than the first bit and a fourth bit which is included in the second image data and is a higher-order bit than the third bit. The data interface further includes a clock generator configured to adjust a sampling timing of the first and second bitsets based on a multi-phase clock, and a clock data recovery (CDR) circuit shared by the first sampler, the second sampler and configured to output the multi-phase clock to the clock generator.

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