RELAXATION OSCILLATOR
    21.
    发明公开

    公开(公告)号:US20240339991A1

    公开(公告)日:2024-10-10

    申请号:US18395790

    申请日:2023-12-26

    CPC classification number: H03K3/0315 H03K3/014

    Abstract: A relaxation oscillator includes a start-up circuit. During the start-up period of the relaxation oscillator, two output signals from the relaxation oscillator are controlled to be complementary signals by the start-up circuit according to a control signal. Consequently, the relaxation oscillator can be started up successfully. The relaxation oscillator can generate periodic square wave signals. Moreover, during the start-up period of the relaxation oscillator, the generation of the deadlock situation can be avoided.

    LAYOUT METHOD, NON-TRANSITORY COMPUTER-READABLE MEDIUM, AND ASSOCIATED INTEGRATED CIRCUIT

    公开(公告)号:US20240296271A1

    公开(公告)日:2024-09-05

    申请号:US18244326

    申请日:2023-09-11

    CPC classification number: G06F30/392 G06F30/394

    Abstract: A layout method, a non-transitory computer-readable medium, and an associated integrated circuit are provided. The non-transitory computer-readable medium records a software program for performing the layout method of the integrated circuit having Q circuit blocks. The layout method includes the following steps. K gate-controlled elements and (K−1) buffers are placed on the edge of a qth circuit block. The K gate-controlled elements are connected between a supply voltage terminal and the qth circuit block. (K−1) gate-controlled elements, including an SEL[1]-th gate-controlled element, are selected as (K−1) source nodes. Another (K−1) gate-controlled elements, other than the SEL[1]-th gate-controlled element, are selected as (K−1) destination nodes. The (K−1) buffers are routed as (K−1) delayed gating lines connected between the (K−1) source nodes and the (K−1) destination nodes.

    Serial signal detector and differential signal detection method covering multi-protocols

    公开(公告)号:US11831349B2

    公开(公告)日:2023-11-28

    申请号:US17575664

    申请日:2022-01-14

    Inventor: Vinod Kumar Jain

    CPC classification number: H04B1/1018 H03K5/24 H03K19/20

    Abstract: A serial signal detector and a differential signal detection method are provided. The serial signal detector includes a voltage comparison module and a hybrid logic filter. The voltage comparison module receives a differential signal, including a first shifted signal and a second shifted signal. The voltage comparison module includes a first comparator and a second comparator. Based on the first shifted signal, the second shifted signal, and a voltage threshold, the first and the second comparators respectively generate a first and a second comparison signals. The hybrid logic filter includes a controllable logic gate and a capacitor. The controllable logic gate performs a logic operation related to the first and the second comparison signals and generates a filtered and converted pulse accordingly. The controllable logic gate and the capacitor jointly perform a preliminary filtering operation to the filtered and converted pulse while the logic operation is being performed.

    SoC ARCHITECTURE AND DATA PROTECTION METHOD THEREOF

    公开(公告)号:US20230351055A1

    公开(公告)日:2023-11-02

    申请号:US17899653

    申请日:2022-08-31

    Inventor: Chun-Yuan LAI

    Abstract: An SoC architecture includes a non-volatile memory and an SoC chip. The SoC chip is connected with the non-volatile memory. The SoC chip includes a central processing unit, a volatile memory, a system bus, an on-the-fly decryption circuit, a memory interface, a timer and a key bank. The on-the-fly decryption circuit is connected with the key bank. The on-the-fly decryption circuit performs an encryption operation or a decryption operation according to plural keys in the key bank. After the SoC architecture is powered on, if the timer is not disabled and the timer has counted time for a specified time period, the central processing unit is subjected to a warm reset, and a storage format in the non-volatile memory is changed from an initial format to an operation format by the central processing unit.

    Input/output module
    25.
    发明授权

    公开(公告)号:US11606091B2

    公开(公告)日:2023-03-14

    申请号:US17399312

    申请日:2021-08-11

    Abstract: An input/output module electrically coupled between a control circuit and an input/output pin is provided. The input/output module includes a pre-driver and a post-driver. The pre-driver is electrically coupled to the control circuit, and the post-driver is electrically coupled between the pre-driver and the input/output pin. The pre-driver generates a pull-up selection signal and a pull-down selection signal according to an input signal and an enable signal generated by the control circuit. The post-driver sets a voltage level of the input/output pin according to the pull-up and pull-down selection signals. When the enable signal is at a first logic level, the input/output pin has a high impedance. When the enable signal is at a second logic level, the voltage level of the input/output pin changes with a logic level of the input signal, wherein the first logic level and the second logic level are inverted.

    TRANSACTION LAYER CIRCUIT OF PCIE AND OPERATION METHOD THEREOF

    公开(公告)号:US20230029065A1

    公开(公告)日:2023-01-26

    申请号:US17542531

    申请日:2021-12-06

    Inventor: Bu-Qing Ping

    Abstract: The invention provides a transaction layer circuit of a PCIe. The transaction layer circuit includes transaction layer processing channels, a channel selection circuit, and a merge circuit. The transaction layer processing channels are coupled to a data bus transmitting at least one packet data output by a data link layer circuit of the PCIe. The channel selection circuit receives packet start/end location information in a current clock cycle from the data link layer circuit, and distributes at least one packet data in the current clock cycle to at least one transaction layer processing channel according to the packet start/end location information. The merge circuit is coupled to the transaction layer processing channels and selectively merges transaction layer processing results output by the transaction layer processing channels based on the distribution of the packet data in the current clock cycle to the transaction layer processing channels via the channel selection circuit.

    Gate signal control circuit for DDR memory system

    公开(公告)号:US11360709B1

    公开(公告)日:2022-06-14

    申请号:US16953549

    申请日:2020-11-20

    Abstract: A gate signal control circuit of a DDR memory system includes a comparing circuit, a flag generator and a signal generator. The comparing circuit receives a first data strobe signal and a second data strobe signal, and generates an internal data strobe signal. The flag generator receives a physical layer clock signal and a read enable signal, and generates plural flag signals. The signal generator receives the internal data strobe signal and the plural flag signal, and generates a gate signal. When plural read commands are issued, the flag generator sets the flag signals according to the physical layer clock signal and the read enable signal. When a read data is received, the signal generator opens the gate signal according to a preamble, and the signal generator samples the plural flag signals to determine the timing of closing the gate signal.

    SUCCESSIVE APPROXIMATION REGISTER ANALOG-TO-DIGITAL CONVERTER AND ASSOCIATED CONTROL METHOD

    公开(公告)号:US20210305990A1

    公开(公告)日:2021-09-30

    申请号:US17151673

    申请日:2021-01-19

    Abstract: A Successive Approximation Register Analog-to-Digital Converter (SAR ADC) is disclosed. The SAR ADC includes a switched capacitor array, a buffer, a comparator and a control logic circuit. The switched capacitor array is arranged to sample an input signal according to a switch control signal to generate a sampling signal. The buffer is arranged to generate a common mode voltage. The comparator is arranged to receive the sampling signal and the common mode voltage in order to generate a comparison result. The control logic circuit is arranged to generate an output signal according to the comparison result, and generate the switch control signal to control the switched capacitor array. The control logic circuit further generates an operation control signal to adjust a Miller compensation capacitor inside the buffer. An associated control method is also disclosed.

    START-AND-STOP DETECTING APPARATUS AND METHOD FOR I+hu 3+l C BUS

    公开(公告)号:US20210048861A1

    公开(公告)日:2021-02-18

    申请号:US16709021

    申请日:2019-12-10

    Abstract: A start-and-stop detecting apparatus for an I3C bus is provided. The start-and-stop detecting apparatus is connected with a serial data line and a serial clock line. The start-and-stop detecting apparatus includes a first start detecting circuit, a second start detecting circuit and a first OR gate. The first start detecting circuit receives a data signal, a clock signal and a reset signal, and generates a first control signal and a first output signal. The second start detecting circuit receives the data signal, the clock signal, the reset signal and the first control signal, and generates a second output signal. A first input terminal of the first OR gate receives the first output signal. A second input terminal of the first OR gate receives the second output signal. An output terminal of the first OR gate generates a start signal.

    Calibration circuit and associated calibrating method capable of precisely adjusting clocks with distorted duty cycles and phases

    公开(公告)号:US10797683B1

    公开(公告)日:2020-10-06

    申请号:US16811371

    申请日:2020-03-06

    Abstract: A calibration circuit, including a duty cycle correction circuit and a phase correction circuit and associated calibrating method, are provided. Firstly, a first duty cycle adjusted clock and a second duty cycle adjusted clock are generated by the duty cycle correction circuit based on a first input clock and a second input clock, respectively. Then, a first delay adjusted clock and a second delay adjusted clock are generated by the phase correction circuit based on a phase of the first duty cycle adjusted clock, and a detection signal is generated. The detection signal is related to a duty cycle of the first input clock, a duty cycle of the second input clock, and a phase difference between the second delay adjusted clock and the first delay adjusted clock. Later, the duty cycle correction circuit and the phase correction circuit are controlled in response to the detection signal.

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