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公开(公告)号：US20230376102A1
公开(公告)日：2023-11-23
申请号：US18200602
申请日：2023-05-23
Applicant: Silicon Integrated Systems Corp.
Inventor： Wen-Chi LIN , Keng-Nan CHEN
IPC: G06F1/3231 , G06F1/3296
CPC classification number: G06F1/3231 , G06F1/3296
Abstract: An electronic wake-up device and a wake-up method thereof are provided. The electronic wake-up device includes: a power switch device, an electronic device, a gravity sensor, and a wake-up circuit. The wake-up circuit is coupled to the gravity sensor and the electronic device. The wake-up circuit is configured to generate an execution signal according to a sensing activation signal, and generate an electronic device control signal according to the execution signal and a gravity signal to wake up the electronic device.
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公开(公告)号：US20180155187A1
公开(公告)日：2018-06-07
申请号：US15828044
申请日：2017-11-30
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Wen-Chi LIN , Ssu-Che YANG , Keng-Nan CHEN
CPC classification number: B81B7/02 , B81B7/007 , B81B2201/02 , B81C1/00301 , G01N27/4148 , G01P15/125 , G05F3/02 , G06G7/184 , H02M3/073 , H03H9/1057
Abstract: A sensing device includes a MEMS sensor and an adjustable amplifier. The MEMS sensor is configured to generate an input signal according to environmental changes. The adjustable amplifier has a first input terminal, a second input terminal, a third input terminal, a fourth input terminal and a first output terminal. The first input terminal is electrically connected to the MEMS sensor for receiving the input signal. The second input terminal is electrically connected to a first signal terminal for receiving a first common-mode signal. The third input terminal is electrically connected to the first output terminal. The fourth input terminal is electrically connected to a second signal terminal. An electric potential of a first output signal output by the first output terminal of the adjustable amplifier is related to electric potentials of the input signal, the first signal terminal and the second signal terminal.
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公开(公告)号：US20190326868A1
公开(公告)日：2019-10-24
申请号：US16393363
申请日：2019-04-24
Applicant: Silicon Integrated Systems Corp
Inventor： Wen-Chi LIN , Ssu-Che YANG , Keng-Nan CHEN
Abstract: An analog microphone and a control method thereof are disclosed. The analog microphone includes a sensor configured to sense an audio signal and convert the audio signal into an electrical signal; a charge pump configured to provide a bias voltage for the sensor to drive the sensor; a source follower configured to receive the electrical signal and convert the electrical signal into a source follower signal; a gain adjustable amplifier configured to receive the source follower signal, multiply the source follower signal by an amplifying factor, and output an amplified signal; and a detecting module configured to adaptively control the bias voltage of the charge pump and the amplified signal of the gain adjustable amplifier in response to the source follower signal of the source follower.
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公开(公告)号：US20180127264A1
公开(公告)日：2018-05-10
申请号：US15668844
申请日：2017-08-04
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Ssu-Che YANG , Wen-Chi LIN , Keng-Nan CHEN
CPC classification number: B81B7/008 , B81B2201/02 , G01R17/04 , H02M3/07 , H04R3/04 , H04R2201/003 , H04R2410/00
Abstract: A sensing device includes a micro-electromechanical sensor, a source follower and an amplifier. The source follower includes a first output module including a first transistor and a second transistor. The micro-electromechanical sensor is configured to generate an input signal. A first terminal of the first transistor is configured to receive a first reference voltage. A second terminal and a control of the first transistor are electrically connected to the first output terminal and to a first current source respectively. A first terminal and a second terminal of the second transistor are electrically connected to the second terminal and the control terminal of the first transistor respectively. A control terminal of the second transistor is configured to receive the input signal. A first input terminal and a second input terminal of the amplifier are electrically connected to a first output terminal configured to receive a common-mode voltage respectively.
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Patent Agency Ranking
公开(公告)号：US20200293265A1
公开(公告)日：2020-09-17
申请号：US16790740
申请日：2020-02-14
Applicant: Silicon Integrated Systems Corp.
Inventor： Han-Ning Chen , Chien-Yu CHIANG , Wen-Chi LIN
Abstract: A device for detecting an audio interface includes a processing unit, a first audio interface transmitting circuit, and a second audio interface transmitting circuit. The processing unit is utilized to generate a clock signal and a word select (WS) signal. The first audio interface transmitting circuit is utilized to generate a first audio data according to the clock signal. The second audio interface transmitting circuit is utilized to generate a second audio data according to the clock signal and the WS signal. The processing unit switches to the first audio interface transmitting circuit if a voltage potential of the WS signal remains at a high voltage level or remains at a low voltage level longer than a predetermined period. The processing unit switches to the second audio interface transmitting circuit if the voltage potential of the WS signal changes during the predetermined period.
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公开(公告)号：US20190356272A1
公开(公告)日：2019-11-21
申请号：US16416230
申请日：2019-05-19
Applicant: Silicon Integrated Systems Corp.
Inventor： Ssu-Che YANG , Wen-Chi LIN , Keng-Nan CHEN
IPC: H03F1/02
Abstract: A configurable amplifier module is disclosed. The configurable amplifier module includes a first amplifier having a non-inverting input, an inverting input, and a first output; a second amplifier having a non-inverting input, an inverting input, and a second output; a first resistor; a second resistor; a third resistor; a detecting unit connected to the second output of the second amplifier and configured to detect whether a current flows through the detecting unit; and a control unit connected to the second resistor and the detecting unit and configured to control the second resistor to be connected to the third resistor or a direct current signal.
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公开(公告)号：US20200186089A1
公开(公告)日：2020-06-11
申请号：US16687708
申请日：2019-11-19
Applicant: Silicon Integrated Systems Corp.
Inventor： Wen-Chi LIN , Keng-Nan Chen
IPC: H03D13/00 , H01L29/872 , G04F10/00 , H03L7/093
Abstract: A frequency detector is used for detecting a frequency difference of a signal to be tested from a first time point to a second time point. The frequency detector includes: an alternating current coupled capacitor configured to receive the signal to be tested; a rectifying circuit electrically connected to the alternating current coupled capacitor; an analog-to-digital converter electrically connected to the rectifying circuit; a control unit electrically connected to the analog-to-digital converter; and a counter electrically connected to the rectifying circuit and the control unit, wherein the control unit is configured to calculate the frequency difference of the signal to be tested from the first time point to the second time point according to outputs of the analog-to-digital converter and outputs of the counter.
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公开(公告)号：US20180160233A1
公开(公告)日：2018-06-07
申请号：US15826484
申请日：2017-11-29
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Ssu-Che YANG , Wen-Chi LIN , Keng-Nan CHEN
CPC classification number: H04R19/005 , B81B2201/0257 , H04R3/00 , H04R19/04
Abstract: A sensing device comprises a charge pump, a MEMS sensor, a source follower and a PGA. The charge pump is configured to provide a pump voltage. The MEMS sensor is electrically connected to the charge pump and configured to generate an input voltage according to environment variations. The source follower is electrically connected to the MEMS sensor and configured to generate a followed reference voltage according to the pump voltage and to generate a followed input voltage according to the input voltage. The PGA has an input end of the PGA electrically connected to the source follower and is configured to generate two-ended differential output voltages outputted through a first output end and a second output end according to a difference between the followed reference voltage and the followed input voltage.
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公开(公告)号：US20180152157A1
公开(公告)日：2018-05-31
申请号：US15669798
申请日：2017-08-04
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Ssu-Che YANG , Wen-Chi LIN , Keng-Nan CHEN
CPC classification number: H03G1/0088 , H03F1/0233 , H03F1/26 , H03F3/45 , H03F3/45183 , H03F3/45215 , H03F3/45273 , H03F3/45475 , H03F2203/45026 , H03G1/0029 , H03G3/001
Abstract: A programmable gain amplifier includes an active load module, a first differential pair, a second differential pair and a power source module. The first and second differential pairs are electrically connected to the active load module. The power source module is electrically connected to the first current source end of the first differential pair and the second current source end of the second differential pair. The power source module supplies a first current to the first differential pair through the first current source end. The power source module supplies a second current to the second differential pair through the second current source end. The power source module adjusts the potential of the first current, the potential of the second current, or both.
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