Redriver capable of switching between linear and limited modes

    公开(公告)号:US11792361B2

    公开(公告)日:2023-10-17

    申请号:US17363158

    申请日:2021-06-30

    CPC classification number: H04N7/102 H04N21/43635 H04N21/44227

    Abstract: A redriver system adapted for coupling to a first device and to a second device includes first and second transmitter drivers and a snoop circuit. The first transmitter driver has a first enable input. The second transmitter driver has a second enable input. The snoop circuit is coupled to the first and second enable inputs. The snoop circuit is configured to determine whether the first device and the second device are to operate according to a first protocol. Responsive to the snoop circuit determining that the first and second devices are to operate according to the first protocol, the snoop circuit enables the first transmitter driver and disables the second transmitter driver. Responsive to the snoop circuit determining that the first and second devices are not to operate according to the first protocol, the snoop circuit disables the first transmitter driver and enables the second transmitter driver.

    Embedded universal serial bus 2 repeater

    公开(公告)号:US10762016B2

    公开(公告)日:2020-09-01

    申请号:US16404494

    申请日:2019-05-06

    Abstract: Aspects of the disclosure provide for a circuit including a squelch detector having a first input coupled to a first node and configured to receive a positive component of a differential signal with a floating center tap, a second input coupled to a second node and configured to receive a negative component of the differential signal, and an output coupled to a logic circuit, a first resistor coupled between the first node and a third node, a second resistor coupled between the third node and the second node, a third resistor coupled between the first node and a fourth node, a fourth resistor coupled between the fourth node and the second node, a capacitor coupled between the fourth node and a ground terminal, a comparator having a first input coupled to the third node, a second input coupled to a fifth node, and an output coupled to the logic circuit.

    Methods and systems for adaptive equalization with wide range of signal amplitudes

    公开(公告)号:US11153135B1

    公开(公告)日:2021-10-19

    申请号:US17146454

    申请日:2021-01-11

    Abstract: Methods and systems of adaptive equalization to compensate channel loss are disclosed. A method includes detecting a peak amplitude of an equalizer output signal and selecting a set of reference voltage levels from M sets based on the peak amplitude of the equalizer output signal, each of the M sets having N reference voltage levels. The method includes continuing to increase an equalization level in predetermined steps to a next higher equalization level if the applied equalization level does not correspond to the over-equalization level and evaluating the distribution of the resulting hit counts for each increase to the next higher equalization level until the applied equalization level corresponds to the over-equalization level. The method includes decreasing to the previously applied lower equalization level if the applied equalization level corresponds to the over-equalization level.

    Embedded universal serial bus 2 repeater

    公开(公告)号:US10922255B2

    公开(公告)日:2021-02-16

    申请号:US16939725

    申请日:2020-07-27

    Abstract: Aspects of the disclosure provide for a circuit including a squelch detector having a first input coupled to a first node and configured to receive a positive component of a differential signal with a floating center tap, a second input coupled to a second node and configured to receive a negative component of the differential signal, and an output coupled to a logic circuit, a first resistor coupled between the first node and a third node, a second resistor coupled between the third node and the second node, a third resistor coupled between the first node and a fourth node, a fourth resistor coupled between the fourth node and the second node, a capacitor coupled between the fourth node and a ground terminal, a comparator having a first input coupled to the third node, a second input coupled to a fifth node, and an output coupled to the logic circuit.

    High speed current mode latch
    20.
    发明授权
    High speed current mode latch 有权
    高速电流模式锁存

    公开(公告)号:US09438253B2

    公开(公告)日:2016-09-06

    申请号:US14727990

    申请日:2015-06-02

    CPC classification number: H03L7/0807 H03L7/087 H03L7/089 H04L7/0045

    Abstract: A current mode logic (CML) latch that includes a first transistor coupled to a second transistor, a third transistor coupled to a fourth transistor, a first capacitor connected to the first, second, third, and fourth transistors, and a second capacitor cross-coupled with the first capacitor and connected to the third and fourth transistors. The first and second transistors are configured to receive a data signal. The third and fourth transistors are configured to receive a clock signal.

    Abstract translation: 电流模式逻辑(CML)锁存器,其包括耦合到第二晶体管的第一晶体管,耦合到第四晶体管的第三晶体管,连接到第一,第二,第三和第四晶体管的第一电容器, 与第一电容耦合并连接到第三和第四晶体管。 第一和第二晶体管被配置为接收数据信号。 第三和第四晶体管被配置为接收时钟信号。

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