Patents by Inventor Chao-Shiun Wang
Chao-Shiun Wang 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: 11933809Abstract: The present application discloses an inertial sensor comprising a proof mass, an anchor, a flexible member and several sensing electrodes. The anchor is positioned on one side of the sensing, mass block in a first axis. The flexible member is connected to the anchor point and extends along the first axis towards the proof mass to connect the proof mass, in which the several sensing electrodes are provided. In this way, the present application can effectively solve the problems of high difficulty in the production and assembly of inertial sensors and poor product reliability thereof.Type: GrantFiled: April 6, 2022Date of Patent: March 19, 2024Assignee: SENSORTEK TECHNOLOGY CORP.Inventors: Shih-Wei Lee, Chia-Hao Lin, Shih-Hsiung Tseng, Kuan-Ju Tseng, Chao-Shiun Wang
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Publication number: 20240017987Abstract: The present application discloses an anchor structure for application to a microelectromechanical system device comprising a cap layer, a device layer and a substrate layer. Such an anchor structure enhances the stress tolerance of the microelectromechanical system device. The anchor structure comprises a first anchor portion, a second anchor portion and a flexible member located in the device layer. The first anchor portion and the second anchor portion are connected to two sides of the flexible member, respectively. The first anchor is secured to the cap layer by a first bonding portion, and the second anchor is secured to the substrate layer by a second bonding portion.Type: ApplicationFiled: April 3, 2023Publication date: January 18, 2024Inventors: Shih-Wei Lee, Kuan-Ju Tseng, Chao-Shiun Wang
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Patent number: 11614327Abstract: The present invention provides a gyroscope structure. A frame disposed on a substrate, and a flexible element is correspondingly disposed a first, second, and third plate. The first plate has a second flexibility. The second plate is connected to the second plate, the second plate is connected to the third plate with a fourth flexible element, the second plate is provided with a first through-hole, and a rotating plate is pivotally connected in the first through-hole. The rotating plate is connected to a supporting column of the substrate by a fifth flexible part, and then a sensing element is provided on the substrate corresponding to the first, second, and third plates to sense the movement and movement of the plates. Rotating, in one embodiment, the first and third plates are provided with through-holes, and corresponding sensing elements and driving elements are provided.Type: GrantFiled: July 23, 2021Date of Patent: March 28, 2023Assignee: Sensortek Technology Corp.Inventors: Shih-Hsiung Tseng, Shih-Wei Lee, Chao-Shiun Wang
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Publication number: 20230055638Abstract: The present application discloses an inertial sensor comprising a proof mass, an anchor, a flexible member and several sensing electrodes. The anchor is positioned on one side of the sensing, mass block in a first axis. The flexible member is connected to the anchor point and extends along the first axis towards the proof mass to connect the proof mass, in which the several sensing electrodes are provided. In this way, the present application can effectively solve the problems of high difficulty in the production and assembly of inertial sensors and poor product reliability thereof.Type: ApplicationFiled: April 6, 2022Publication date: February 23, 2023Inventors: SHIH-WEI LEE, CHIA-HAO LIN, SHIH-HSIUNG TSENG, KUAN-JU TSENG, CHAO-SHIUN WANG
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Publication number: 20220026210Abstract: The present invention provides a gyroscope structure. A frame disposed on a substrate, and a flexible element is correspondingly disposed a first, second, and third plate. The first plate has a second flexibility. The second plate is connected to the second plate, the second plate is connected to the third plate with a fourth flexible element, the second plate is provided with a first through-hole, and a rotating plate is pivotally connected in the first through-hole. The rotating plate is connected to a supporting column of the substrate by a fifth flexible part, and then a sensing element is provided on the substrate corresponding to the first, second, and third plates to sense the movement and movement of the plates. Rotating, in one embodiment, the first and third plates are provided with through-holes, and corresponding sensing elements and driving elements are provided.Type: ApplicationFiled: July 23, 2021Publication date: January 27, 2022Inventors: SHIH-HSIUNG TSENG, SHIH-WEI LEE, CHAO-SHIUN WANG
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Patent number: 11193770Abstract: The invention related to a microelectromechanical systems gyroscope, which comprises a plurality of sensing modules sensing angular velocities on tri-axes, a plurality of outer frames set at outside of the sensing modules, and a plurality of driving shafts set between the frames respectively. The driving shafts are connected with two adjacent frames by first and second flexible connecting elements, respectively, and the frames are connected with the sensing modules by a plurality of transporting units. Thus, tri-axes sensing is provided.Type: GrantFiled: September 10, 2020Date of Patent: December 7, 2021Assignee: Sensortek Technology Corp.Inventors: Shih-Wei Lee, Chao-Shiun Wang
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Publication number: 20210088335Abstract: The invention related to a microelectromechanical systems gyroscope, which comprises a plurality of sensing modules sensing angular velocities on tri-axes, a plurality of outer frames set at outside of the sensing modules, and a plurality of driving shafts set between the frames respectively. The driving shafts are connected with two adjacent frames by first and second flexible connecting elements, respectively, and the frames are connected with the sensing modules by a plurality of transporting units. Thus, tri-axes sensing is provided.Type: ApplicationFiled: September 10, 2020Publication date: March 25, 2021Inventors: SHIH-WEI LEE, CHAO-SHIUN WANG
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Publication number: 20180143153Abstract: The present invention provides a bio-cell detection apparatus and a bio detection method. The bio detection method includes: in absence of a biological reagent being introduced, pre-calibrating an initial value of a bio-cell detection chip. In absence of a sample to be tested in the bio-cell detection chip, introducing only the biological reagent into the bio-cell detection chip; and, measuring a first electrical parameter between a pair of opposing electrodes of the bio-cell detection chip. Introducing both the biological reagent and the sample to be tested into the bio-cell detection chip at the same time; and, measuring a second electrical parameter between the pair of opposing electrodes of the bio-cell detection chip. Comparing the second electrical parameter and the first electrical parameter, to determine whether a target biomolecule to be detected is present.Type: ApplicationFiled: October 3, 2017Publication date: May 24, 2018Inventors: Chao-Shiun Wang, Chang-Yu Ho
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Publication number: 20090028217Abstract: An ultra-wideband (UWB) frequency synthesizer is provided for use in UWB communication. The UWB frequency synthesizer may include a first section and a second section. The first section may be configured to generate a first plurality of frequencies. The second section may be coupled to the first section and configured to generate a second plurality of frequencies respectively corresponding to individual channels of UWB bandwidth based upon the first plurality of frequencies. Further, the first section is configured to include a voltage-controlled oscillator (VCO) providing a base frequency fvco corresponding to the UWB bandwidth, and to generate the first plurality of frequencies based on a single phase-locked loop (PLL) and a reference frequency provided to the single PLL based on the base frequency fvco.Type: ApplicationFiled: July 25, 2007Publication date: January 29, 2009Inventors: Chao-Shiun Wang, Chorng-Kuan Wang, Horng-Yuan Shih, Zhi-Wei Wang, Kai-Cheung Juang
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Patent number: 7313368Abstract: The present invention relates to a dual band transceiver architecture for wireless communication. A high frequency integrated circuit is used for converting down the received multi-mode frequency signal, and then a decoding circuit for base frequency will perform the processes of up-sampling and emitting a signal so as to transmit/receive the dual band signal by using a single frequency synthesizer.Type: GrantFiled: November 17, 2003Date of Patent: December 25, 2007Assignee: Industrial Technology Research InstituteInventors: Szu-Hsien Wu, Chao-Shiun Wang, Tzu-Yi Yang
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Patent number: 7123070Abstract: A gain amplifier with quadrature phase compensation circuit is disclosed.Type: GrantFiled: May 24, 2004Date of Patent: October 17, 2006Assignee: Industrial Technology Research Institute (ITRI)Inventor: Chao-Shiun Wang
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Patent number: 7042253Abstract: A frequency synthesizer for dual-band high frequency RF application. The frequency synthesizer first uses a frequency-locked loop circuit (“FLL”) to achieve self-calibration and frequency-locking, and then uses a phase-locked loop circuit (“PLL”) to achieve phase-locking. During the FLL, the PLL is de-activated by control signals from the digital control and state machine of the FLL. The varactor of the VCO is initially connected to a fixed voltage, thus isolating the varactor from the PLL. The FLL adjusts the VCO's capacitor array by varying the five binary control bits from the state machine and digital control, until frequency-locking and self-calibration is achieved. Then, those five binary weighting control bits are also fixed for the VCO. The PLL is then activated to perform a fine-tuning and phase-locking loop, where the varactor of the VCO is controlled by the signal from the charge pump and the low-pass filter.Type: GrantFiled: May 24, 2004Date of Patent: May 9, 2006Assignee: Industrial Technology Research Institute (ITRI)Inventors: Chih-Chin Su, Chao-Shiun Wang
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Publication number: 20050258906Abstract: A frequency synthesizer for dual-band high frequency RF application. The frequency synthesizer first uses a frequency-locked loop circuit (“FLL”) to achieve self-calibration and frequency-locking, and then uses a phase-locked loop circuit (“PLL”) to achieve phase-locking. During the FLL, the PLL is de-activated by control signals from the digital control and state machine of the FLL. The varactor of the VCO is initially connected to a fixed voltage, thus isolating the varactor from the PLL. The FLL adjusts the VCO's capacitor array by varying the five binary control bits from the state machine and digital control, until frequency-locking and self-calibration is achieved. Then, those five binary weighting control bits are also fixed for the VCO. The PLL is then activated to perform a fine-tuning and phase-locking loop, where the varactor of the VCO is controlled by the signal from the charge pump and the low-pass filter.Type: ApplicationFiled: May 24, 2004Publication date: November 24, 2005Inventors: Chih-Chin Su, Chao-Shiun Wang
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Publication number: 20050260966Abstract: A gain amplifier with quadrature phase compensation circuit is disclosed.Type: ApplicationFiled: May 24, 2004Publication date: November 24, 2005Inventor: Chao-Shiun Wang
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Patent number: 6903593Abstract: A DC offset cancellation circuit employs multiple feedback factors for canceling DC offset by increasing convergence time. The DC offset cancellation circuit features an active low-pass analogue filter including a variable resistor, an amplifier, a capacitor pair and a comparator, the amplifier being coupled to an output of the variable resistor. Negative feedback is provided from the output of the variable resistor to the input signal source, the capacitor pair is coupled to the amplifier, one input of the comparator is coupled to an output of the amplifier, and a second input of the comparator is coupled to a reference voltage source such that a comparison signal is output by the comparator to the variable resistor after comparing the negative feedback signal with a reference voltage.Type: GrantFiled: October 20, 2003Date of Patent: June 7, 2005Assignee: Industrial Technology Research InstituteInventor: Chao-Shiun Wang
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Publication number: 20040251947Abstract: The present invention discloses a gain amplifier with DC offset cancellation circuit. The multiple feedback factors are employed in the DC offset cancellation circuit for canceling DC offset by increasing convergence time.Type: ApplicationFiled: October 20, 2003Publication date: December 16, 2004Applicant: Industrial Technology Research InstituteInventor: Chao-Shiun Wang
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Publication number: 20040224644Abstract: The present invention relates to a dual band transceiver architecture for wireless communication. A high frequency integrated circuit is used for converting down the received multi-mode frequency signal, and then a decoding circuit for base frequency will perform the processes of up-sampling and emitting a signal so as to transmit/receive the dual band signal by using a single frequency synthesizer.Type: ApplicationFiled: November 17, 2003Publication date: November 11, 2004Applicant: Industrial Technology Research InstituteInventors: Szu-Hsien Wu, Chao-Shiun Wang, Tzu-Yi Yang