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公开(公告)号：US20230014043A1
公开(公告)日：2023-01-19
申请号：US17472679
申请日：2021-09-12
Applicant: RichWave Technology Corp.
Inventor： Hsiang-Feng Chi
Abstract: A radar apparatus includes a transmitting analog front-end circuit, a plurality of antenna ports, a switching controller, a switching circuit, and a receiving analog front-end circuit. The transmitting analog front-end circuit generates a transmitting signal according to a carrier wave signal. A frequency of the carrier wave signal changes with time during a frequency sweep period of the carrier wave signal. The antenna ports are respectively configured to receive an echo signal corresponding to the transmitting signal. The switching controller is coupled to the transmitting analog front-end circuit and configured to generate a control signal according to the frequency sweep period of the carrier wave signal. The switching circuit is coupled to the antenna ports and the switching controller, configured to select one of the antenna ports to receive the echo signal according to the control signal, and coupled to the receiving analog front-end circuit.
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242.发明申请公开(公告)号：US20220385241A1
公开(公告)日：2022-12-01
申请号：US17356467
申请日：2021-06-23
Applicant: RichWave Technology Corp.
Inventor： Tien-Yun Peng , Chih-Sheng Chen
Abstract: A power amplifier includes a transistor, a temperature sensor and a filter. The transistor is used to receive a bias signal and amplify a radio frequency (RF) signal. The temperature sensor is arranged in proximity to the transistor, and is used to detect a temperature of the transistor to provide a voltage signal at a control node accordingly. The filter is coupled to the temperature sensor and is used to filter the voltage signal to generate a filtered voltage. The bias signal is adjusted according to the filtered voltage.
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公开(公告)号：US11415665B2
公开(公告)日：2022-08-16
申请号：US16575403
申请日：2019-09-19
Applicant: RichWave Technology Corp.
Inventor： Hsiang-Feng Chi
Abstract: An ultra-wideband radar transceiver and an operating method thereof are provided. The ultra-wideband radar transceiver includes a receiving module. The receiving module includes an I/Q signal generator, a first sensing circuit and a second sensing circuit. The I/Q signal generator receives M consecutive echo signals and generates M consecutive in-phase signals and M consecutive quadrature-phase signals accordingly, wherein M is an integer greater than 1. The first sensing circuit is coupled to the I/Q signal generator to receive the M consecutive in-phase signals and is configured to perform integration and analog-to-digital conversion on the M consecutive in-phase signals to generate a first digital data. The second sensing circuit is coupled to the I/Q signal generator to receive the M consecutive quadrature-phase signals and is configured to perform integration and analog-to-digital conversion on the M consecutive quadrature-phase signals to generate a second digital data.
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公开(公告)号：US11409311B2
公开(公告)日：2022-08-09
申请号：US17138913
申请日：2020-12-31
Applicant: RichWave Technology Corp.
Inventor： Shun-Nan Tai
Abstract: A voltage regulator is provided. The voltage regulator includes an output terminal, a transistor, a primary driving circuit, and a secondary driving circuit. The output terminal is adapted to output an output voltage. The primary driving circuit is coupled to a control terminal of the transistor. The secondary driving circuit is coupled between the control terminal of the transistor and a predetermined voltage terminal. When the voltage regulator operates in a start-up mode, the transistor is driven by the primary driving circuit and the secondary driving circuit, and the control terminal of the transistor and the predetermined voltage terminal are electrically coupled by the secondary driving circuit. When the voltage regulator operates in a normal mode, the transistor is driven by the primary driving circuit, and an electrical coupling between the control terminal of the transistor and the predetermined voltage terminal is disconnected by the secondary driving circuit.
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245.发明授权公开(公告)号：US11367968B2
公开(公告)日：2022-06-21
申请号：US17037657
申请日：2020-09-29
Applicant: RichWave Technology Corp.
Inventor： Shih-Kai Lin
Abstract: A wireless signal transceiver device includes a dual-polarized antenna, a transmission circuit, a reception circuit and a processor. The dual-polarized antenna includes a first feed zone and a second feed zone. The first feed zone is used to receive a transmission signal for the dual-polarized antenna to transmit a first wireless signal accordingly. The second feed zone is used to output a reception signal generated according to a second wireless signal. The dual-polarized antenna is used to form a first radiated electric-field having a first co-polarization according to the first wireless signal and form a second radiated electric-field having a second co-polarization according to the second wireless signal. The first co-polarization and the second co-polarization form an angle between 45 degrees to 135 degrees to each other in a far field.
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Patent Agency Ranking
公开(公告)号：US20220171416A1
公开(公告)日：2022-06-02
申请号：US17138913
申请日：2020-12-31
Applicant: RichWave Technology Corp.
Inventor： Shun-Nan Tai
IPC: G05F1/46
Abstract: A voltage regulator is provided. The voltage regulator includes an output terminal, a transistor, a primary driving circuit, and a secondary driving circuit. The output terminal is adapted to output an output voltage. The primary driving circuit is coupled to a control terminal of the transistor. The secondary driving circuit is coupled between the control terminal of the transistor and a predetermined voltage terminal. When the voltage regulator operates in a start-up mode, the transistor is driven by the primary driving circuit and the secondary driving circuit, and the control terminal of the transistor and the predetermined voltage terminal are electrically coupled by the secondary driving circuit. When the voltage regulator operates in a normal mode, the transistor is driven by the primary driving circuit, and an electrical coupling between the control terminal of the transistor and the predetermined voltage terminal is disconnected by the secondary driving circuit.
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247.发明申请公开(公告)号：US20220123773A1
公开(公告)日：2022-04-21
申请号：US17566399
申请日：2021-12-30
Applicant: Richwave Technology Corp.
Inventor： Shih-Kai LIN
Abstract: A transceiver includes an antenna configured to transmit a first wireless signal based on a transmission signal and receive a second wireless signal, the second wireless signal including a reflected first wireless signal from an object and the antenna transmitting the first wireless signal and receiving the second wireless signal at the same time. A transmission circuit is configured to generate the transmission signal and output the transmission signal to a first side of the antenna. A reception circuit is configured to receive a reception signal from a second side of the antenna, the antenna outputting the reception signal based on the second wireless signal. The first side is different from the second side.
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公开(公告)号：US20220116000A1
公开(公告)日：2022-04-14
申请号：US17128212
申请日：2020-12-21
Applicant: RichWave Technology Corp.
Inventor： Yu-Chun Donald Lie , Chuan-Chen Chao
Abstract: An amplifier device and a duplexer circuit are provided. The amplifier device includes a first differential amplifier circuit and a controller. The first differential amplifier circuit includes first and second radio frequency (RF) input terminals, first and second transistors, first and second adjustable capacitor circuits, and first and second RF output terminals. The controller adjusts capacitance values of the first adjustable capacitor circuit of the first differential amplifier circuit and the second adjustable capacitor circuit of the first differential amplifier circuit according to at least one of a characteristic related to a first RF input signal of the first differential amplifier circuit, a characteristic related to the second RF input signal of the first differential amplifier circuit, a matching deviation between the first transistor and the second transistor of the first differential amplifier circuit, and a characteristic of the amplifier device.
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公开(公告)号：US11296732B2
公开(公告)日：2022-04-05
申请号：US16920739
申请日：2020-07-05
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Tien-Yun Peng
Abstract: A radio frequency signal transmission circuit includes a direct current blocking unit, a biasing impedance circuit, and a radio frequency element. The direct current blocking unit has a first terminal for receiving an input signal, and a second terminal coupled to a first bias voltage terminal. The biasing impedance circuit has a first terminal coupled to the first bias voltage terminal for providing a first bias voltage, and a second terminal coupled to a second bias voltage terminal for receiving a second bias voltage. The radio frequency element is coupled to the first bias voltage terminal, and receives and processes the input signal. When the biasing impedance circuit operates in a first mode, the biasing impedance circuit provides a first impedance. When the biasing impedance circuit operates in a second mode, the biasing impedance circuit provides a second impedance greater than the first impedance.
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公开(公告)号：US11223337B2
公开(公告)日：2022-01-11
申请号：US16990967
申请日：2020-08-11
Applicant: RichWave Technology Corp.
Inventor： Hwey-Ching Chien , Chun-Han Tai
Abstract: A logarithmic power detector includes a power distributor, a first detection circuit, a second detection circuit and an output circuit. The power distributor is used to generate a first power signal and a second power signal according to an input signal. The first detection circuit is used to attenuate the first power signal to generate a first rectified signal, filter the first rectified signal to generate a first low-pass signal, and amplify the first low-pass signal to generate a first amplification current. The second detection circuit is used to attenuate the second power signal to generate a second rectified signal, filter the second rectified signal to generate a second low-pass signal, and amplify the second low-pass signal to generate a second amplification current. The output circuit is used to receive the first amplification current and the second amplification current to generate a converted voltage related to the input signal.
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