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公开(公告)号：US20220179040A1
公开(公告)日：2022-06-09
申请号：US17521862
申请日：2021-11-09
Applicant: RichWave Technology Corp.
Inventor： Hsiang-Feng Chi
Abstract: A radar detector including a radar transmitting device, a radar receiving device, an analog-to-digital converter (ADC), and a digital processing unit, and an interference suppression method using the radar detector are provided. The radar transmitting device transmits a first wireless signal. The radar receiving device receives a second wireless signal to generate an analog reference signal in response to the first wireless signal is subdued from being transmitted, and receives a third wireless signal to generate an analog main signal in response to the first wireless signal is not subdued from being transmitted. The ADC generates a digital reference signal according to the analog reference signal, and generates a digital main signal according to the analog main signal. The digital processing unit adjusts the digital or analog main signal according to the digital reference signal to correspondingly suppress interference components in the digital main signal or in the analog main signal.
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公开(公告)号：US11307301B2
公开(公告)日：2022-04-19
申请号：US16727867
申请日：2019-12-26
Applicant: RichWave Technology Corp.
Inventor： Chiang-Hua Yeh
IPC: G01S13/46 , G01S7/35 , G01S13/536
Abstract: A location detection system includes a first directional radar sensor, a second directional radar sensor and a controller. The first directional radar sensor has a first facing direction and a first radio coverage correspondingly, and is used to receive a first response signal upon detecting an object. The second directional radar sensor has a second facing direction and a second radio coverage correspondingly, the second radio coverage being partially overlapping with the first radio coverage, and is used to receive a second response signal upon detecting the object. The controller is used to determine which region the object is located in according to receptions of the first response signal and the second response signal.
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公开(公告)号：US20220059936A1
公开(公告)日：2022-02-24
申请号：US17519584
申请日：2021-11-05
Applicant: RichWave Technology Corp.
Inventor： Shih-Kai Lin
Abstract: A Doppler motion sensor device is used for detecting a motion of an object. The Doppler motion sensor device includes a first antenna and a second antenna. The first antenna is used to transmit or receive a first wireless signal. The second antenna is used to transmit or receive a second wireless signal. A first straight line passing through a first feed-in point and a first middle point of the first antenna is orthogonal to a second straight line passing through a second feed-in point and a second middle point of the second antenna. One of the first wireless signal and the second wireless signal is a transmission signal. The transmission signal is reflected by the object to form the other one of the first wireless signal and the second wireless signal.
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公开(公告)号：US20220037223A1
公开(公告)日：2022-02-03
申请号：US17199371
申请日：2021-03-11
Applicant: RichWave Technology Corp.
Inventor： Yu-Lung Wen
Abstract: An electronic package structure includes: a substrate having an upper surface; a solder mask layer disposed on the upper surface of the substrate, at least one outer side of the solder mask layer being aligned with at least one outer side of the substrate; an electronic component with a first surface provided on the upper surface of the substrate; and a cavity located between the electronic component and the solder mask layer. A first surface of the cavity is formed by the first surface of the electronic component.
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65.发明申请公开(公告)号：US20220006676A1
公开(公告)日：2022-01-06
申请号：US17115805
申请日：2020-12-09
Applicant: RichWave Technology Corp.
Inventor： Ching Shou Huang
IPC: H04L27/152 , H04L7/033 , H03L7/099
Abstract: A frequency modulation demodulation device and a control method thereof are provided. The frequency modulation demodulation device includes an input terminal, a phase converter, a phase-locked loop circuit, and a frequency offset/shift detector. The input terminal receives an input signal. The phase converter is coupled to the input terminal and receives the input signal to obtain a phase signal. The phase-locked loop circuit is coupled to the phase converter to generate a phase adjustment signal according to the phase signal, and the phase-locked loop circuit adjusts the phase signal according to the phase adjustment signal to perform demodulation of the input signal. The frequency offset/shift detector is coupled to the phase-locked loop circuit and generates a frequency offset/shift determining signal according to the phase adjustment signal obtained from the phase-locked loop circuit. The frequency offset/shift determining signal is related to a phase frequency offset/shift of the input signal.
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Patent Agency Ranking
66.发明授权公开(公告)号：US11194037B2
公开(公告)日：2021-12-07
申请号：US16408358
申请日：2019-05-09
Applicant: RichWave Technology Corp.
Inventor： Tse-Peng Chen , You-Chieh Chen , Shih-Kai Lin
Abstract: A Doppler motion sensor device is used for detecting a motion of an object. The Doppler motion sensor device includes a first antenna and a second antenna. The first antenna is used to transmit or receive a first wireless signal. The second antenna is used to transmit or receive a second wireless signal. A first straight line passing through a first feed-in point and a first middle point of the first antenna is orthogonal to a second straight line passing through a second feed-in point and a second middle point of the second antenna. One of the first wireless signal and the second wireless signal is a transmission signal. The transmission signal is reflected by the object to form the other one of the first wireless signal and the second wireless signal.
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公开(公告)号：US11081548B2
公开(公告)日：2021-08-03
申请号：US16551713
申请日：2019-08-26
Applicant: RichWave Technology Corp.
Inventor： Chuan-Chen Chao , Po-Hsiang Yang
IPC: H01L29/08 , H01L29/737
Abstract: A bipolar transistor includes a collector layer, a base layer on the collector layer, and a first elongated emitter mesa on the base layer having a long side and a short side, wherein the long side is parallel with a first direction, and n separate first emitter-contact structures disposed along the first direction on the first elongated emitter mesa, where n is an integer greater than one.
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公开(公告)号：US20210159859A1
公开(公告)日：2021-05-27
申请号：US17027728
申请日：2020-09-22
Applicant: RichWave Technology Corp.
Inventor： Ting-Yuan Cheng
IPC: H03F3/04 , H03K19/0175
Abstract: An amplifying apparatus and a voltage-to-current conversion apparatus are provided. The amplifying apparatus includes a zero point generating circuit, a level shift circuit, a transistor, and an amplifying circuit. A first terminal of the zero point generating circuit is coupled to an output terminal of the amplifying apparatus. A first terminal of the level shift circuit is coupled to the output terminal of the amplifying apparatus. A first terminal of the transistor is coupled to a supply voltage. A second terminal of the transistor is coupled to the output terminal of the amplifying apparatus. A control terminal of the transistor is coupled to a second terminal of the level shift circuit. An input terminal of the amplifying circuit is coupled to an input terminal of the amplifying apparatus. An output terminal of the amplifying circuit is coupled to the output terminal of the amplifying apparatus.
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公开(公告)号：US20210091727A1
公开(公告)日：2021-03-25
申请号：US16945916
申请日：2020-08-02
Applicant: RichWave Technology Corp.
Inventor： Hwey-Ching Chien , Chih-Sheng Chen , Jhao-Yi Lin , Ching-Wen Hsu
Abstract: The frequency detector includes a first impedance circuit and a second impedance circuit. The first impedance circuit has a first terminal for receiving an input signal, and a second terminal for outputting a divisional signal. The second impedance circuit has a first terminal coupled to the second terminal of the first impedance circuit, and a second terminal coupled to a first system voltage terminal. The frequency response of the first impedance circuit is different from a frequency response of the second impedance circuit. The resistance of the first impedance circuit, a resistance of the second impedance circuit, and the divisional signal change with a frequency of the input signal.
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公开(公告)号：US20210058037A1
公开(公告)日：2021-02-25
申请号：US17093504
申请日：2020-11-09
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Tien-Yun Peng , Hung-Chia Lo
Abstract: An amplifier device includes an amplifying unit and a bias module. The amplifying unit has a first end coupled to a voltage source configured to receive a source voltage, a second end configured to receive an input signal, and a third end coupled to a first reference potential terminal configured to receive a first reference potential. The first end of the amplifying unit is configured to output an output signal amplified by the amplifying unit. The bias module is coupled to the second end of the amplifying unit, and configured to receive a voltage signal to generate a bias current according to a first counter-gradient and a second counter-gradient, and provide the bias current to the amplifying unit. The voltage signal is a variable voltage. A supply current flowing into the amplifying unit and is adjusted in accordance with the voltage signal to stay within a predetermined range.
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