ELECTROSTATIC DISCHARGE PROTECTION APPARATUS FOR INTEGRATED CIRCUIT

    公开(公告)号:US20200035670A1

    公开(公告)日:2020-01-30

    申请号:US16153829

    申请日:2018-10-08

    Abstract: A electrostatic discharge (ESD) protection apparatus for an integrated circuit (IC) is provided. A first electrostatic current rail and a second electrostatic current rail of the ESD protection apparatus do not directly connected to any bonding pad of the IC. The ESD protection apparatus further includes a clamp circuit and four ESD protection circuits. The clamp circuit is coupled between the first electrostatic current rail and the second electrostatic current rail. A first ESD protection circuit is coupled between the first electrostatic current rail and a signal pad of the IC. A second ESD protection circuit is coupled between the signal pad and the second electrostatic current rail. A third ESD protection circuit is coupled between a first power rail and the second electrostatic current rail. A fourth ESD protection circuit is coupled between the second electrostatic current rail and a second power rail.

    Apparatus for performing baseline wander correction

    公开(公告)号:US10523470B1

    公开(公告)日:2019-12-31

    申请号:US16286511

    申请日:2019-02-26

    Inventor: Chia-Lin Hu

    Abstract: An apparatus for performing baseline wander correction is provided. The apparatus may include: a plurality of filters, a common mode voltage generator, and a compensation circuit. The plurality of filters may filter a set of input signals to generate a set of differential signals, the common mode voltage generator may generate a common mode voltage between the set of differential signals, and the compensation circuit may perform compensation related to baseline wander correction on the set of differential signals. Multiple current paths of the compensation circuit are associated with each other. Through a first current path and a second current path within the current paths, the compensation circuit may perform charge or discharge control on a first capacitor and a second capacitor within the plurality of filters to dynamically adjust compensation amounts of the compensation, to reduce or eliminate a baseline wander effect of the set of differential signals.

    METHOD AND APPARATUS FOR PERFORMING FIRMWARE PROGRAMMING ON MICROCONTROLLER CHIP, AND ASSOCIATED MICROCONTROLLER CHIP

    公开(公告)号:US20190278912A1

    公开(公告)日:2019-09-12

    申请号:US16011650

    申请日:2018-06-19

    Abstract: A method and apparatus for performing firmware programming on a microcontroller chip and the associated microcontroller chip are provided. The method includes: utilizing an integrated circuit (IC) programmer to generate a seed file including characteristic information of the IC programmer; utilizing an encoder to encrypt original data representing a program code at least according to the characteristic information, to generate an encryption version of the original data; utilizing the IC programmer to decrypt the encryption version of the original data according to the characteristic information, to generate the original data utilizing the IC programmer to encrypt the original data at least according to predetermined information, to generate another encryption version of the original data; utilizing the microcontroller chip to decrypt the other encryption version at least according to predetermined information stored in the microcontroller chip to generate the original data, and write the original data into a non-volatile (NV) memory.

    ELECTROSTATIC DISCHARGE PROTECTION APPARATUS
    84.
    发明申请

    公开(公告)号:US20180351351A1

    公开(公告)日:2018-12-06

    申请号:US15694847

    申请日:2017-09-03

    Inventor: Chia-Ku Tsai

    Abstract: An electrostatic discharge (ESD) protection apparatus includes: an ESD circuit, arranged to perform ESD protection, wherein the ESD circuit includes a first Field Effect Transistor (FET) arranged to release ESD energy; a detection circuit, arranged to perform detection to control the ESD protection apparatus to selectively operate in one of a normal mode and a discharge mode; and a logic circuit, arranged to withstand any oscillation due to resistance-inductance-capacitance (RLC) characteristics of the detection circuit. In the detection circuit, different subsets of a plurality of resistors are respectively combined with a portion of a first serial connection circuit, an entirety of the first serial connection circuit, and a second FET to form different serial connection circuits, to configure the second FET to approach a state of being completely turned off in the normal mode.

    Integrated circuit and operation method of serializer/deserializer physical layer circuit thereof

    公开(公告)号:US09965430B2

    公开(公告)日:2018-05-08

    申请号:US15001196

    申请日:2016-01-19

    CPC classification number: G06F13/4068

    Abstract: An integrated circuit and an operation method of a SERDES PHY layer circuit thereof are provided. When the SERDES PHY layer circuit is in a calibration preparation state and a signal of a first calibration input pin is an enable state, or when the SERDES PHY layer circuit is in the calibration preparation state, and signals of first and second calibration input pins are in the enable state, the SERDES PHY layer circuit enters a calibration state (using a reference resistor for current calibration). After the current calibration is completed, the SERDES PHY layer circuit enters a calibration completion state (without using the reference resistor and connecting the first calibration input pin to the first calibration output pin). The SERDES PHY layer circuit sets the signal of the first calibration output pin to a disable state when the SERDES PHY layer circuit is not in the calibration completion state.

    Non-volatile memory accelerator and method for speeding up data access

    公开(公告)号:US09773534B2

    公开(公告)日:2017-09-26

    申请号:US15158589

    申请日:2016-05-19

    Abstract: A non-volatile memory accelerator and a method for speeding up data access are provided. The non-volatile memory accelerator includes a data pre-fetching unit, a cache unit, and an access interface circuit. The data pre-fetching unit has a plurality of line buffers. One of the line buffers provides read data according to a read command, or the data pre-fetching unit reads at least one cache data as the read data according to the read command. The data pre-fetching unit further stores in at least one of the line buffers a plurality of pre-stored data with continuous addresses according to the read command. The cache unit stores the at least one cache data and the pre-stored data with the continuous addresses. The access interface circuit is configured to be an interface circuit of the non-volatile memory.

    METHOD AND APPARATUS FOR PERFORMING DE-SKEW CONTROL

    公开(公告)号:US20170207903A1

    公开(公告)日:2017-07-20

    申请号:US15173702

    申请日:2016-06-05

    Inventor: Chih-Cheng Chiu

    CPC classification number: H04L7/0016 H04B3/04 H04L7/005 H04L25/14

    Abstract: A method and apparatus for performing de-skew control are provided, where the method is applied to an electronic device. The method includes: buffering a plurality of data sequences for performing symbol detection on a plurality of channels; according to a first symbol on a first channel, determining corresponding first expected symbols on other channels to determine a plurality of candidate expected symbol positions on the other channels, respectively; according to at least one other symbol on the first channel, within the candidate expected symbol positions on the other channels, eliminating any candidate expected symbol position that does not comply with a predetermined format to obtain a plurality of expected symbol positions on the other channels; and utilizing the expected symbol positions as correct positions of the corresponding first expected symbols on the other channels to control respective data of the data sequences to be synchronously transmitted.

    Power on-reset circuit
    90.
    发明授权

    公开(公告)号:US09673808B1

    公开(公告)日:2017-06-06

    申请号:US15065879

    申请日:2016-03-10

    CPC classification number: H03K17/223

    Abstract: A power-on-reset circuit including a first diode-connected transistor, a second diode-connected transistor, a resistor and a current comparator circuit is provided. A cathode of the first diode-connected transistor is coupled to a reference voltage. A first end of the resistor is coupled to a power voltage. A second end of the resistor is coupled to an anode of the first diode-connected transistor. A cathode of the second diode-connected transistor is coupled to the reference voltage. An anode of the second diode-connected transistor is coupled to the first end of the resistor. The current comparator circuit is coupled to the first diode-connected transistor and the second diode-connected transistor. The current comparator circuit compares a current of the first diode-connected transistor with a current of the second diode-connected transistor to obtain a comparing result, wherein the comparing result determines a reset signal.

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