-
公开(公告)号：US10819300B2
公开(公告)日：2020-10-27
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.
-
公开(公告)号：US11114979B2
公开(公告)日：2021-09-07
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 , H03L7/093 , G04F10/00 , H01L29/872
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.
-
公开(公告)号：US20180173329A1
公开(公告)日：2018-06-21
申请号：US15840236
申请日：2017-12-13
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Keng-Nan Chen , Chia-Yi Chu , Han-Ning Chen , Wen-Chi Lin , Hui-Chung Chen
IPC: G06F3/038 , G06F3/0354 , G06F3/041
Abstract: An active stylus pen comprises a touch component and a pressure sensing module. One end of the touch component is disposed at a nib part of the active stylus pen, wherein the touch component is configured to receive an external pressure. The pressure sensing module is connected to the touch component, wherein the pressure sensing module is configured to generate an oscillation signal, wherein the oscillation signal has a first frequency when the touch component receives the external pressure and the external pressure reaches a first threshold value, and wherein the oscillation signal is adjusted to have a second frequency when the touch component receives the external pressure and the external pressure does not reach the first threshold value; wherein a difference of the first frequency and the second frequency is larger than a second threshold value.
-
公开(公告)号：US12158790B2
公开(公告)日：2024-12-03
申请号：US18200602
申请日：2023-05-23
Applicant: Silicon Integrated Systems Corp.
Inventor： Wen-Chi Lin , Keng-Nan Chen
IPC: G06F1/26 , G06F1/32 , 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.
-
公开(公告)号：US11036460B2
公开(公告)日：2021-06-15
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.
-
Patent Agency Ranking
公开(公告)号：US10944364B2
公开(公告)日：2021-03-09
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
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.
-
公开(公告)号：US10570008B2
公开(公告)日：2020-02-25
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
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.
-
公开(公告)号：US10141897B2
公开(公告)日：2018-11-27
申请号：US15831220
申请日：2017-12-04
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Ssu-Che Yang , Wen-Chi Lin , Keng-Nan Chen
Abstract: A source follower includes a first transistor, a first output module, a second transistor, a second output module and a feedback module. The first terminal and the control terminal of the first transistor are configured to respectively receive a first base voltage and a first control voltage. The second terminal of the first transistor and the first output module are electrically connected to a first output terminal. The first terminal and the control terminal of the second transistor are configured to respectively receive a first base voltage and a second control voltage. The second terminal of the second transistor and the second output module are electrically connected to a second output terminal. The feedback module is electrically connected to the control terminal of the first transistor, the control terminal of the second transistor and a reference node of the second output module.
-
公开(公告)号：US10122337B2
公开(公告)日：2018-11-06
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
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.
-
公开(公告)号：US20180159485A1
公开(公告)日：2018-06-07
申请号：US15831220
申请日：2017-12-04
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Ssu-Che YANG , Wen-Chi Lin , Keng-Nan Chen
CPC classification number: H03F1/342 , G05F1/00 , H03F1/301 , H03F1/3205 , H03F3/345 , H03F3/347 , H03F3/45183 , H03F3/45475 , H03F3/505 , H03F2200/135 , H03F2200/447 , H03F2203/5012 , H03K5/023
Abstract: A source follower includes a first transistor, a first output module, a second transistor, a second output module and a feedback module. The first terminal and the control terminal of the first transistor are configured to respectively receive a first base voltage and a first control voltage. The second terminal of the first transistor and the first output module are electrically connected to a first output terminal. The first terminal and the control terminal of the second transistor are configured to respectively receive a first base voltage and a second control voltage. The second terminal of the second transistor and the second output module are electrically connected to a second output terminal. The feedback module is electrically connected to the control terminal of the first transistor, the control terminal of the second transistor and a reference node of the second output module.
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.043 seconds)
