Patents by Inventor Chiang-Hua Yeh
Chiang-Hua Yeh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240183938Abstract: A signal generation circuit, a radar apparatus, and a signal control method are provided. The signal generation circuit includes a digital-to-analog converter (DAC) and a mixer. The DAC is configured to convert an input digital signal into two signals in a first mode. A coding content of the input digital signal includes multiple bits. The mixer is coupled to the DAC to respectively input the two signals converted from the input digital signal to two input ports of the mixer in the first mode, to generate an output signal. An output power of the output signal corresponding to the input digital signal having a first coding content is different from an output power of the output signal corresponding to the input digital signal having a second coding content. An intensity of the output signal is related to a voltage difference between the two signals converted from the input digital signal.Type: ApplicationFiled: December 27, 2022Publication date: June 6, 2024Applicant: RichWave Technology Corp.Inventor: Chiang-Hua Yeh
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Patent number: 11662424Abstract: A radar apparatus and a leakage correction method thereof are provided. The radar apparatus includes a transmitter and a receiver. The transmitter includes a sinewave signal generator. The sinewave signal generator generates a sinewave signal. The receiver includes another sinewave signal generator and a correcting circuit. The receiver receives transmitting signals including the sinewave signal from the transmitter. The sinewave signal generator of the receiver generates another sinewave signal according to the amplitude of the transmitting signals or received transmitting signals. The correcting circuit corrects leakage situation on the received transmitting signals according to another sinewave signal. The phasor of sinewave form corresponding to the leakage situation relates to the phasor of another sinewave signal. Accordingly, the performance of receiver may be improved effectively.Type: GrantFiled: December 23, 2021Date of Patent: May 30, 2023Assignee: RichWave Technology Corp.Inventors: Chiang-Hua Yeh, Hsiang-Feng Chi
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Publication number: 20220120850Abstract: A radar apparatus and a leakage correction method thereof are provided. The radar apparatus includes a transmitter and a receiver. The transmitter includes a sinewave signal generator. The sinewave signal generator generates a sinewave signal. The receiver includes another sinewave signal generator and a correcting circuit. The receiver receives transmitting signals including the sinewave signal from the transmitter. The sinewave signal generator of the receiver generates another sinewave signal according to the amplitude of the transmitting signals or received transmitting signals. The correcting circuit corrects leakage situation on the received transmitting signals according to another sinewave signal. The phasor of sinewave form corresponding to the leakage situation relates to the phasor of another sinewave signal. Accordingly, the performance of receiver may be improved effectively.Type: ApplicationFiled: December 23, 2021Publication date: April 21, 2022Applicant: RichWave Technology Corp.Inventors: Chiang-Hua Yeh, Hsiang-Feng Chi
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Patent number: 11307287Abstract: A radar apparatus and a leakage correction method thereof are provided. The radar apparatus includes a transmitter and a receiver. The transmitter includes a sinewave signal generator. The sinewave signal generator generates a sinewave signal. The receiver includes another sinewave signal generator and a correcting circuit. The receiver receives transmitting signals including the sinewave signal from the transmitter. The sinewave signal generator of the receiver generates another sinewave signal according to the amplitude of the transmitting signals or received transmitting signals. The correcting circuit corrects leakage situation on the received transmitting signals according to another sinewave signal. The phasor of sinewave form corresponding to the leakage situation relates to the phasor of another sinewave signal. Accordingly, the performance of receiver may be improved effectively.Type: GrantFiled: October 24, 2019Date of Patent: April 19, 2022Assignee: RichWave Technology Corp.Inventors: Chiang-Hua Yeh, Hsiang-Feng Chi
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Patent number: 11307301Abstract: 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.Type: GrantFiled: December 26, 2019Date of Patent: April 19, 2022Assignee: RichWave Technology Corp.Inventor: Chiang-Hua Yeh
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Patent number: 10965251Abstract: A multi-mode processing circuit and a multi-mode controlling method thereof are provided. The multi-mode processing circuit includes, but is not limited to, a control circuit and a mixer. The control circuit is configured to receive an input signal and output one of a control signal and another control signal according to the input signal. The mixer is coupled to the control circuit and is configured to mix the control signal output by the control circuit with another input signal or mix the other control signal with the another input signal to output an output signal. Accordingly, the mixer and a buffer can be integrated into a single cell, and a fast mode switch can be achieved.Type: GrantFiled: August 6, 2020Date of Patent: March 30, 2021Assignee: RichWave Technology Corp.Inventors: Chiang-Hua Yeh, Ching-Piao Liang
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Publication number: 20200249340Abstract: 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.Type: ApplicationFiled: December 26, 2019Publication date: August 6, 2020Inventor: Chiang-Hua Yeh
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Publication number: 20200132804Abstract: A radar apparatus and a leakage correction method thereof are provided. The radar apparatus includes a transmitter and a receiver. The transmitter includes a sinewave signal generator. The sinewave signal generator generates a sinewave signal. The receiver includes another sinewave signal generator and a correcting circuit. The receiver receives transmitting signals including the sinewave signal from the transmitter. The sinewave signal generator of the receiver generates another sinewave signal according to the amplitude of the transmitting signals or received transmitting signals. The correcting circuit corrects leakage situation on the received transmitting signals according to another sinewave signal. The phasor of sinewave form corresponding to the leakage situation relates to the phasor of another sinewave signal. Accordingly, the performance of receiver may be improved effectively.Type: ApplicationFiled: October 24, 2019Publication date: April 30, 2020Applicant: RichWave Technology Corp.Inventors: Chiang-Hua Yeh, Hsiang-Feng Chi