Patents by Inventor Tzyy-Sheng Horng
Tzyy-Sheng Horng 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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Patent number: 9049080Abstract: The present invention relates to an injection-locked RF receiver having trifilar transformer splitter. The injection-locked RF receiver includes a trifilar transformer splitter, an injection-locked oscillator and a phase detector. The trifilar transformer splitter includes a primary winding, a secondary winding and a tertiary winding. RF input signal is input to the primary winding. The secondary winding outputs a first differential signal to the injection-locked oscillator. The tertiary winding outputs a second differential signal to the phase detector. Using the trifilar transformer splitter of the invention, the frequency-shift keying demodulation with high sensitivity is achieved, and the number of amplifier can be reduced so as to lower the power consumption of the injection-locked RF receiver and reduce the complexity of the involved system.Type: GrantFiled: April 25, 2013Date of Patent: June 2, 2015Assignee: NATIONAL SUN YAT-SEN UNIVERSITYInventors: Tzyy-Sheng Horng, Rong-Fu Ye, Jian-Ming Wu
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Publication number: 20140379286Abstract: A method for estimating PCB radiated emissions includes providing a BCI probe and a vector network analyzer; performing a calibration step; performing a measurement step; and performing an estimation step. A transfer impedance of the BCI probe is measured via a clamping device in the procedure of performing a calibration step. A measurement-input transfer function of an object and an output-input transfer function of the object are measured via the BCI probe in the procedure of performing a measurement step. Eventually, radiated emissions of the object can be estimated according to the measurement-input transfer function, the output-input transfer function and the transfer impedance in the procedure of performing an estimation step. The present invention accurately estimates radiated emissions of the object with low cost and high speed.Type: ApplicationFiled: December 5, 2013Publication date: December 25, 2014Applicant: NATIONAL SUN YAT-SEN UNIVERSITYInventors: Tzyy-Sheng Horng, Cheng-Yu Ho, Kai-Syuan Chen
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Patent number: 8890590Abstract: A wideband frequency synthesizer and a frequency synthesizing method thereof are provided. The wideband frequency synthesizer includes a phase-locked loop unit, a first voltage-controlled oscillating unit and a first frequency mixer unit. The phase-locked loop unit receives a reference signal and a feedback signal and generates a first oscillating signal according to the reference signal and the feedback signal. The first voltage-controlled oscillating unit generates a second oscillating signal. The first frequency mixer is coupled to the phase-locked loop unit and the first voltage-controlled oscillating unit, receives the first oscillating signal and the second oscillating signal for mixing frequencies of the first oscillating signal and the second oscillating signal to generate an output signal and taking the output signal as the feedback signal for outputting to the phase-locked loop unit.Type: GrantFiled: August 8, 2013Date of Patent: November 18, 2014Assignee: National Sun Yat-sen UniversityInventors: Tzyy-Sheng Horng, Kang-Chun Peng, Fu-Kang Wang
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Publication number: 20140327478Abstract: A wideband frequency synthesizer and a frequency synthesizing method thereof are provided. The wideband frequency synthesizer includes a phase-locked loop unit, a first voltage-controlled oscillating unit and a first frequency mixer unit. The phase-locked loop unit receives a reference signal and a feedback signal and generates a first oscillating signal according to the reference signal and the feedback signal. The first voltage-controlled oscillating unit generates a second oscillating signal. The first frequency mixer is coupled to the phase-locked loop unit and the first voltage-controlled oscillating unit, receives the first oscillating signal and the second oscillating signal for mixing frequencies of the first oscillating signal and the second oscillating signal to generate an output signal and taking the output signal as the feedback signal for outputting to the phase-locked loop unit.Type: ApplicationFiled: August 8, 2013Publication date: November 6, 2014Applicant: National Sun Yat-sen UniversityInventors: Tzyy-Sheng Horng, Kang-Chun Peng, Fu-Kang Wang
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Patent number: 8754772Abstract: A non-contact vital sign sensing system including a vital sign sensing module and at least one body movement interference cancellation module is provided. The vital sign sensing module and the at least one body movement interference cancellation module are under a self-injection locking (SIL) mode. The vital sign sensing module senses an isotropic vital sign of a body. A mutual injection locking (MIL) mode is achieved between the vital sign sensing module and the at least one body movement interference cancellation module to sense the anisotropic body movement signal and to cancel the body movement interference.Type: GrantFiled: April 26, 2012Date of Patent: June 17, 2014Assignees: Industrial Technology Research Institute, National Sun Yat-Sen UniversityInventors: Tzyy-Sheng Horng, Fu-Kang Wang, Kang-Chun Peng
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Patent number: 8736326Abstract: A frequency synthesizer and a frequency synthesis method thereof are provided. The frequency synthesizer includes a phase-locked loop unit, a voltage-controlled oscillating unit, and a frequency mixing unit. The phase-locked loop unit receives a reference signal and a feedback injection signal and generates a first oscillating signal according to the reference signal and the feedback injection signal. The voltage-controlled oscillating unit receives the feedback injection signal and generates a second oscillating signal according to the feedback injection signal. The frequency mixing unit is coupled to the phase-locked loop unit and the voltage-controlled oscillating unit, receives the first oscillating signal and the second oscillating signal, and mixes the first oscillating signal and the second oscillating signal to generate the feedback injection signal and an output signal.Type: GrantFiled: May 23, 2013Date of Patent: May 27, 2014Assignee: National Sun Yat-sen UniversityInventors: Tzyy-Sheng Horng, Chung-Hung Chen, Fu-Kang Wang
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Publication number: 20140140443Abstract: The present invention relates to an injection-locked RF receiver having trifilar transformer splitter. The injection-locked RF receiver includes a trifilar transformer splitter, an injection-locked oscillator and a phase detector. The trifilar transformer splitter includes a primary winding, a secondary winding and a tertiary winding. RF input signal is input to the primary winding. The secondary winding outputs a first differential signal to the injection-locked oscillator. The tertiary winding outputs a second differential signal to the phase detector. Using the trifilar transformer splitter of the invention, the frequency-shift keying demodulation with high sensitivity is achieved, and the number of amplifier can be reduced so as to lower the power consumption of the injection-locked RF receiver and reduce the complexity of the involved system.Type: ApplicationFiled: April 25, 2013Publication date: May 22, 2014Applicant: NATIONAL SUN YAT-SEN UNIVERSITYInventors: Tzyy-Sheng Horng, Rong-Fu Ye, Jian-Ming Wu
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Publication number: 20140123763Abstract: A motion/vibration detection system and method therefore are provided. The system includes a transmitter and a receiver. The transmitter includes a transmit/receive antenna unit and a first oscillator. The receiver includes a receiving unit and a demodulation unit. The transmit/receive antenna unit receives an output signal from the first oscillator and transmits a detection signal. The detection signal is reflected from at least one object under detection into a reflected detection signal, which is received by the transmit/receive antenna unit. The transmit/receive antenna unit injects the reflected detection signal into the first oscillator and accordingly the first oscillator is under a self-injection locking mode. The receiving unit receives the detection signal. The demodulation unit demodulates the detection signal received by the receiving unit into a baseband output signal, to extract at least one motion/vibration information of the objection under detection.Type: ApplicationFiled: January 14, 2014Publication date: May 8, 2014Applicants: NATIONAL SUN YAT-SEN UNIVERSITY, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Tzyy-Sheng Horng, Fu-Kang Wang, Kang-Chun Peng
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Publication number: 20140128748Abstract: A motion/vibration sensor includes a transmit/receive antenna unit, an oscillation unit and a frequency-mixing unit. The transmit/receive antenna unit receives an output signal from the oscillation unit and transmits a detection signal toward at least one object. The detection signal is reflected by the object as a reflected detection signal and received by the transmit/receive antenna unit. The oscillation unit receives the reflected detection signal from the transmit/receive antenna unit for self-injection locking; and the frequency-mixing unit receives the reflected detection signal from the transmit/receive antenna unit for frequency demodulation. The frequency-mixing unit mixes and demodulates the reflected detection signal from the transmit/receive antenna unit with the output signal from the oscillation unit into a baseband output signal which represents a motion/vibration information.Type: ApplicationFiled: January 10, 2014Publication date: May 8, 2014Applicants: National Sun Yat-Sen University, Industrial Technology Research InstituteInventors: Tzyy-Sheng Horng, Fu-Kang Wang, Kang-Chun Peng
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Patent number: 8698636Abstract: A wireless detection apparatus includes an antenna, a voltage control oscillator, and a processing unit. The antenna receives a first wireless signal and generates an electrical signal according to the first wireless signal. The first wireless signal is generated by reflecting a second wireless signal from an object under test. The voltage control oscillator is coupled to the antenna to generate an oscillating signal under an interference of the electrical signal. The oscillating signal varies with variation of the electrical signal. The processing unit is coupled to the voltage control oscillator to evaluate a parameter of the object under test according to the variation of the oscillating signal.Type: GrantFiled: September 20, 2010Date of Patent: April 15, 2014Assignees: Industrial Technology Research Institute, National Sun Yat-sen UniversityInventors: Tzyy-Sheng Horng, Fu-Kang Wang, Chieh-Hsun Hsiao, Je-Kuan Jau
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Patent number: 8648611Abstract: An RF sensing circuit with a voltage-controlled oscillator comprises a low noise amplifier (LNA), a voltage-controlled oscillator (VCO), a frequency demodulating unit, a bandpass filter (BPF) and a digital signal processing unit. The VCO has an injection signal input port and a voltage input port, wherein the injection signal input port is electrically connected with an output of the LNA. The frequency demodulating unit is electrically connected with an output of the VCO and the BPF is electrically connected with an output of the frequency demodulating unit. The digital signal processing unit is electrically connected with an output of the BPF and the voltage input port of the VCO.Type: GrantFiled: April 9, 2010Date of Patent: February 11, 2014Assignees: Industrial Technology Research Institute, National Sun Yat-Sen UniversityInventors: Tzyy-Sheng Horng, Chien-Jung Li, Kang-Chun Peng, Fu-Kang Wang
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Publication number: 20130338515Abstract: A wireless detection device is provided, comprising a voltage control oscillation unit, a transceiving unit, demodulation unit and processing unit. The voltage control oscillation unit generates different oscillation signals according to analog control voltages and corresponding injection signals. The transceiving unit outputs first wireless signals to a predetermined area according to the oscillation signals and receives second wireless signals generated by reflection of the first wireless signals to generate the injection signal. The demodulation unit demodulates the oscillation signals into first voltage signals. The processing unit subtracts the corresponding analog control voltages from the first voltage signals to generate second voltage signals, and when the variation of the second voltage signals exceeds a predetermined value on a target frequency in frequency domain, the processing unit calculates a real distance between an object and the transceiving unit.Type: ApplicationFiled: March 6, 2013Publication date: December 19, 2013Applicant: National Sun Yat-Sen UniversityInventors: Tzyy-Sheng Horng, Fu-Kang Wang, Kang-Chun Peng
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Publication number: 20130321234Abstract: A multi-input and multi-output antenna device is disclosed. The MIMO antenna device comprises two antennas symmetrically disposed on a substrate. Each antenna comprises a T-shaped feeding unit, a radiation unit and a ground unit. The T-shaped feeding unit and the radiation unit are disposed on a first surface of the substrate. The T-shaped feeding unit forms a strip portion and a top portion. The radiation unit has first and second ends. The radiation unit extends from the first end to the second end to form a rectangular region and a spacing. The first end extends parallel to the top portion. The ground unit is disposed along two sides of the strip portion and electrically coupled to the second end. The two strip portions of the two T-shaped feeding units are parallel to and aligned with each other. The two ground units are electrically connected to each other.Type: ApplicationFiled: September 10, 2012Publication date: December 5, 2013Inventors: Ken-Huang LIN, Tzyy-Sheng Horng, Tzu-Chun Tang
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Publication number: 20130300520Abstract: Provided are a stacked LC resonator and a band pass filter using the same. The stacked LC resonator includes a flat metal base layer; a plurality of spiral inductors disposed layer by layer, corresponding to the flat metal base layer; and a plurality of dielectric layers, formed between the spiral inductors, and between the flat metal base layer and the spiral inductor corresponding to the flat metal base layer. The band pass filter includes two resonators with symmetrical structures, wherein the spiral inductors of the two resonators are disposed corresponding to each other.Type: ApplicationFiled: November 13, 2012Publication date: November 14, 2013Applicant: NATIONAL SUN YAT-SEN UNIVERSITYInventors: Tzyy-Sheng HORNG, Chien-Hsun CHEN, Chien-Hsiang HUANG, Sung-Mao WU
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Patent number: 8498601Abstract: A polar receiver using injection-locking technique includes an antenna, a first filter, a first voltage-controlled oscillator, a first mixer, a frequency discriminator, a second filter, a third filter, a first analog-digital converter, a second analog-digital converter and a digital signal processing unit. Mentioned polar receiver enables to separate an envelope signal and a frequency-modulated signal from a radio frequency signal received from the antenna via the injection locking technique of the first voltage-controlled oscillator and the frequency discriminator. The envelope component and the frequency-modulated component can be digitally processed by the digital signal processing unit to accomplish polar demodulation.Type: GrantFiled: June 1, 2012Date of Patent: July 30, 2013Assignee: National Sun Yat-Sen UniversityInventors: Tzyy-Sheng Horng, Chi-Tsan Chen, Chieh-Hsun Hsiao, Kang-Chun Peng
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Publication number: 20130143509Abstract: A polar receiver using injection-locking technique includes an antenna, a first filter, a first voltage-controlled oscillator, a first mixer, a frequency discriminator, a second filter, a third filter, a first analog-digital converter, a second analog-digital converter and a digital signal processing unit. Mentioned polar receiver enables to separate an envelope signal and a frequency-modulated signal from a radio frequency signal received from the antenna via the injection locking technique of the first voltage-controlled oscillator and the frequency discriminator. The envelope component and the frequency-modulated component can be digitally processed by the digital signal processing unit to accomplish polar demodulation.Type: ApplicationFiled: June 1, 2012Publication date: June 6, 2013Applicant: NATIONAL SUN YAT-SEN UNIVERSITYInventors: Tzyy-Sheng Horng, Chi-Tsan Chen, Chieh-Hsun Hsiao, Kang-Chun Peng
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Patent number: 8306484Abstract: A direct-conversion transmitter with resistance to local oscillator pulling effect comprises a local oscillation circuit, a quadrature modulator connected with the local oscillation circuit, a power amplifier connected with the quadrature modulator, a first variable analog delay device connected with the power amplifier, a variable analog attenuator connected with the first variable analog delay device, an inner self-injection loop, and a power combiner connected with the variable analog attenuator and the inner self-injection loop. The local oscillation circuit comprises a two point voltage-controlled oscillator and a phase locked loop connected with the two point voltage-controlled oscillator. The inner self-injection loop comprises a second variable analog delay device, a phase shifter connected with the second variable analog delay device and a variable gain amplifier connected with the phase shifter.Type: GrantFiled: May 30, 2011Date of Patent: November 6, 2012Assignee: National Sun Yat-Sen UniversityInventors: Tzyy-Sheng Horng, Chieh-Hsun Hsiao, Kang-Chun Peng
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Publication number: 20120209087Abstract: A non-contact vital sign sensing system including a vital sign sensing module and at least one body movement interference cancellation module is provided. The vital sign sensing module and the at least one body movement interference cancellation module are under a self-injection locking (SIL) mode. The vital sign sensing module senses an isotropic vital sign of a body. A mutual injection locking (MIL) mode is achieved between the vital sign sensing module and the at least one body movement interference cancellation module to sense the anisotropic body movement signal and to cancel the body movement interference.Type: ApplicationFiled: April 26, 2012Publication date: August 16, 2012Applicants: NATIONAL SUN YAT-SEN UNIVERSITY, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Tzyy-Sheng Horng, Fu-Kang Wang, Kang-Chun Peng
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Publication number: 20110279275Abstract: A wireless detection apparatus includes an antenna, a voltage control oscillator, and a processing unit. The antenna receives a first wireless signal and generates an electrical signal according to the first wireless signal. The first wireless signal is generated by reflecting a second wireless signal from an object under test. The voltage control oscillator is coupled to the antenna to generate an oscillating signal under an interference of the electrical signal. The oscillating signal varies with variation of the electrical signal. The processing unit is coupled to the voltage control oscillator to evaluate a parameter of the object under test according to the variation of the oscillating signal.Type: ApplicationFiled: September 20, 2010Publication date: November 17, 2011Applicants: NATIONAL SUN YAT-SEN UNIVERSITY, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Tzyy-Sheng Horng, Fu-Kang Wang, Chieh-Hsun Hsiao, Je-Kuan Jau
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Publication number: 20100283513Abstract: An RF sensing circuit with a voltage-controlled oscillator comprises a low noise amplifier (LNA), a voltage-controlled oscillator (VCO), a frequency demodulating unit, a bandpass filter (BPF) and a digital signal processing unit. The VCO has an injection signal input port and a voltage input port, wherein the injection signal input port is electrically connected with an output of the LNA. The frequency demodulating unit is electrically connected with an output of the VCO and the BPF is electrically connected with an output of the frequency demodulating unit. The digital signal processing unit is electrically connected with an output of the BPF and the voltage input port of the VCO.Type: ApplicationFiled: April 9, 2010Publication date: November 11, 2010Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, NATIONAL SUN YAT-SEN UNIVERSITYInventors: Tzyy-Sheng HORNG, Chien-Jung LI, Kang-Chun PENG, Fu-Kang WANG