Patents by Inventor Wei-Sheng Tseng

Wei-Sheng Tseng 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).

  • Patent number: 11456749
    Abstract: A timing margin detecting circuit is provided. The timing margin detecting circuit comprises a delay element, receiving a first data signal and a first clock signal, configured to generate a second data signal and a second clock signal, wherein the second clock signal has a delay relative to the second data signal; a controller, configured to generate the control signal to control the delay of the second clock signal relative to the second data signal; a sampler, coupled to the delay element, configured to generate a sampled data signal according to the second data signal and the second clock signal; and a bit error rate determination circuit, coupled to the sampler, configured to determine whether the sampled data signal is the same as a predefined test pattern and generate a determination result accordingly; wherein the controller determines a timing margin according to the determination result.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: September 27, 2022
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Hao-Wei Hung, Wei-Sheng Tseng
  • Patent number: 11244641
    Abstract: A device is applicable to a display driver, including a sampling circuit and a logic circuit. The sampling circuit is configured to sample a command signal by recording a plurality of command values of the command signal at different times. The plurality of command values corresponds to at least one data line of a pixel circuit. The logic circuit is electrically coupled to the sampling circuit, and is configured to receive the plurality of command values. The logic circuit is further configured to generate a filtered command signal according to the plurality of command values, and is configured to provide the filtered command signal to drive the pixel circuit.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: February 8, 2022
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Wei-Sheng Tseng, Wen-Sheng Chen
  • Publication number: 20220006460
    Abstract: A timing margin detecting circuit is provided. The timing margin detecting circuit comprises a delay element, receiving a first data signal and a first clock signal, configured to generate a second data signal and a second clock signal, wherein the second clock signal has a delay relative to the second data signal; a controller, configured to generate the control signal to control the delay of the second clock signal relative to the second data signal; a sampler, coupled to the delay element, configured to generate a sampled data signal according to the second data signal and the second clock signal; and a bit error rate determination circuit, coupled to the sampler, configured to determine whether the sampled data signal is the same as a predefined test pattern and generate a determination result accordingly; wherein the controller determines a timing margin according to the determination result.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 6, 2022
    Inventors: Hao-Wei Hung, Wei-Sheng Tseng
  • Patent number: 11145232
    Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit can include a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit can determine whether an interference event occurs to the input signal based on the input signal or the output data to obtain a determination result and determines whether to adjust the at least one operation parameter of the receiving circuit according to the determination result.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: October 12, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chih-Hao Huang, Wei-Sheng Tseng, Yao-Hung Kuo, Hao-Wei Hung
  • Patent number: 11024209
    Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit includes a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit is configured to adjust the at least one operation parameter of the receiving circuit from at least one normal parameter to at least one anti-interference parameter when an interference event occurs to the input signal. The anti-interference circuit is configured to maintain the at least one operation parameter of the receiving circuit at the at least one normal parameter when the interference event does not occur.
    Type: Grant
    Filed: December 22, 2018
    Date of Patent: June 1, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Wei-Sheng Tseng, Hao-Wei Hung, Chih-Hao Huang, Yao-Hung Kuo
  • Publication number: 20210118380
    Abstract: A device is applicable to a display driver, including a sampling circuit and a logic circuit. The sampling circuit is configured to sample a command signal by recording a plurality of command values of the command signal at different times. The plurality of command values corresponds to at least one data line of a pixel circuit. The logic circuit is electrically coupled to the sampling circuit, and is configured to receive the plurality of command values. The logic circuit is further configured to generate a filtered command signal according to the plurality of command values, and is configured to provide the filtered command signal to drive the pixel circuit.
    Type: Application
    Filed: August 31, 2020
    Publication date: April 22, 2021
    Inventors: Wei-Sheng TSENG, Wen-Sheng CHEN
  • Publication number: 20200265766
    Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit can include a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit can determine whether an interference event occurs to the input signal based on the input signal or the output data to obtain a determination result and determines whether to adjust the at least one operation parameter of the receiving circuit according to the determination result.
    Type: Application
    Filed: May 4, 2020
    Publication date: August 20, 2020
    Applicant: Novatek Microelectronics Corp.
    Inventors: Chih-Hao Huang, Wei-Sheng Tseng, Yao-Hung Kuo, Hao-Wei Hung
  • Patent number: 10699618
    Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit includes a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit determines whether an interference event occurs to the input signal based on the input signal or the output data to obtain a determination result and determines whether to adjust the at least one operation parameter of the receiving circuit according to the determination result.
    Type: Grant
    Filed: December 22, 2018
    Date of Patent: June 30, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chih-Hao Huang, Wei-Sheng Tseng, Yao-Hung Kuo, Hao-Wei Hung
  • Publication number: 20190341000
    Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit includes a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit is configured to adjust the at least one operation parameter of the receiving circuit from at least one normal parameter to at least one anti-interference parameter when an interference event occurs to the input signal. The anti-interference circuit is configured to maintain the at least one operation parameter of the receiving circuit at the at least one normal parameter when the interference event does not occur.
    Type: Application
    Filed: December 22, 2018
    Publication date: November 7, 2019
    Applicant: Novatek Microelectronics Corp.
    Inventors: Wei-Sheng Tseng, Hao-Wei Hung, Chih-Hao Huang, Yao-Hung Kuo
  • Publication number: 20190340968
    Abstract: An integrated circuit for driving a display panel and an anti-interference method are provided. The integrated circuit includes a source driving circuit and an anti-interference circuit. The source driving circuit includes a receiving circuit configured to receive an input signal including image data and process the input signal based on at least one operation parameter to generate output data. The anti-interference circuit is coupled to the receiving circuit. The anti-interference circuit determines whether an interference event occurs to the input signal based on the input signal or the output data to obtain a determination result and determines whether to adjust the at least one operation parameter of the receiving circuit according to the determination result.
    Type: Application
    Filed: December 22, 2018
    Publication date: November 7, 2019
    Applicant: Novatek Microelectronics Corp.
    Inventors: Chih-Hao Huang, Wei-Sheng Tseng, Yao-Hung Kuo, Hao-Wei Hung
  • Patent number: 10044357
    Abstract: A clock recovery device is provided. The clock recovery device includes a clock data recovery circuit and a fast relock circuit. The clock data recovery circuit is configured to generate an output clock signal in response to an input clock signal. The clock data recovery circuit includes a charge pump for generating a control voltage and a voltage controlled block for generating the output clock signal based on the control voltage. The fast relock circuit is configured to convert a comparison signal indicating a comparison result between the input clock signal and the output clock signal to an analog output voltage. When the charge pump is disabled, an output path of the fast relock circuit is turned on, and the analog output voltage is applied to an input of the voltage controlled block.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: August 7, 2018
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Wei-Sheng Tseng, Chih-Lu Wei
  • Patent number: 9634651
    Abstract: A delay apparatus includes a plurality of stage circuits, a first current source, a second current source and a switch. The stage circuits connected in series to each other. The first current source is coupled to the first power terminal of the first stage circuit. In some embodiments, the second current source is coupled to the first power terminal of the second stage circuit, and the first and second terminals of the switch are respectively coupled to the first power terminal of the first stage circuit and the first power terminal of the second stage circuit. In other embodiments, the first and second terminals of the switch are respectively coupled to the first power terminal of the second stage circuit and the second current source, and the first power terminal of the first stage circuit is coupled to the first power terminal of the second stage circuit through a wire.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: April 25, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventor: Wei-Sheng Tseng
  • Patent number: 8369476
    Abstract: A clock generator is illustrated. The clock generator mentioned above includes a multimodulus frequency divider and a delta-sigma modulator. The multimodulus frequency divider is archived by switching the phase thereof. The multimodulus frequency divider increases the operating frequency of the clock generator effectively, and has a characteristic with half period resolution for reducing the jitter of an output clock signal when its spectrum is spread. Besides, the delta-sigma modulator increases the accuracy of the triangle modulation and reduces error of quantization by adding a few components therein. Thus, the clock generator could be expanded to a programmable clock generator.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: February 5, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Wei-Sheng Tseng, Hong-Yi Huang, Kuo-Hsing Cheng, Yuan-Hua Chu
  • Patent number: 8269536
    Abstract: An onion waveform generator and a spread spectrum clock generator (SSCG) using the same are provided. The onion waveform generator includes a value generation unit and an accumulating unit. The value generation unit outputs a counting value. The accumulating unit accumulates the counting value to output a waveform value. The accumulating unit switches from an increasing mode to a decreasing mode if the waveform value is a third boundary value, and the accumulating unit switches from the decreasing mode to the increasing mode if the waveform value is a fourth boundary value.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: September 18, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Hong-Yi Huang, Chih-Yuan Hsu, Wei-Sheng Tseng, Kuo-Hsing Cheng, Yuan-Hua Chu
  • Publication number: 20110156782
    Abstract: An onion waveform generator and a spread spectrum clock generator (SSCG) using the same are provided. The onion waveform generator includes a value generation unit and an accumulating unit. The value generation unit outputs a counting value. The accumulating unit accumulates the counting value to output a waveform value. The accumulating unit switches from an increasing mode to a decreasing mode if the waveform value is a third boundary value, and the accumulating unit switches from the decreasing mode to the increasing mode if the waveform value is a fourth boundary value.
    Type: Application
    Filed: August 31, 2010
    Publication date: June 30, 2011
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hong-Yi Huang, Chih-Yuan Hsu, Wei-Sheng Tseng, Kuo-Hsing Cheng, Yuan-Hua Chu
  • Publication number: 20110150168
    Abstract: A clock generator is illustrated. The clock generator mentioned above includes a multimodulus frequency divider and a delta-sigma modulator. The multimodulus frequency divider is archived by switching the phase thereof. The multimodulus frequency divider increases the operating frequency of the clock generator effectively, and has a characteristic with half period resolution for reducing the jitter of an output clock signal when its spectrum is spread. Besides, the delta-sigma modulator increases the accuracy of the triangle modulation and reduces error of quantization by adding a few components therein. Thus, the clock generator could be expanded to a programmable clock generator.
    Type: Application
    Filed: March 7, 2011
    Publication date: June 23, 2011
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Wei-Sheng Tseng, Hong-Yi Huang, Kuo-Hsing Cheng, Yuan-Hua Chu
  • Patent number: 7924965
    Abstract: A clock generator is illustrated. The clock generator mentioned above includes a multimodulus frequency divider and a delta-sigma modulator. The multimodulus frequency divider is archived by switching the phase thereof. The multimodulus frequency divider increases the operating frequency of the clock generator effectively, and has a characteristic with half period resolution for reducing the jitter of an output clock signal when its spectrum is spread. Besides, the delta-sigma modulator increases the accuracy of the triangle modulation and reduces error of quantization by adding a few components therein. Thus, the clock generator could be expanded to a programmable clock generator.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: April 12, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Wei-Sheng Tseng, Hong-Yi Huang, Kuo-Hsing Cheng, Yuan-Hua Chu
  • Publication number: 20100164562
    Abstract: A clock generator is illustrated. The clock generator mentioned above includes a multimodulus frequency divider and a delta-sigma modulator. The multimodulus frequency divider is archived by switching the phase thereof. The multimodulus frequency divider increases the operating frequency of the clock generator effectively, and has a characteristic with half period resolution for reducing the jitter of an output clock signal when its spectrum is spread. Besides, the delta-sigma modulator increases the accuracy of the triangle modulation and reduces error of quantization by adding a few components therein. Thus, the clock generator could be expanded to a programmable clock generator.
    Type: Application
    Filed: February 24, 2009
    Publication date: July 1, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Wei-Sheng Tseng, Hong-Yi Huang, Kuo-Hsing Cheng, Yuan-Hua Chu
  • Publication number: 20080129890
    Abstract: A method of detecting an image display device for an electronic system includes the following steps: determining a first coupling status of the display device and the electronic system according to a first signal level of a first pin of the image display device; detecting a second signal level of a first control signal of the electronic system when the first coupling status reveals that the display device is not coupled to the electronic system; and determining a second coupling status of the display device and the electronic system via a video driving device of the electronic system when the second signal level of the first control signal is approximately equal to a first level.
    Type: Application
    Filed: August 30, 2007
    Publication date: June 5, 2008
    Inventor: Wei-Sheng Tseng
  • Publication number: 20070211147
    Abstract: An image capture system capable of a plurality of image capture processes is equipped with a button on its surface and a storage device storing a predetermined folder. When the button is activated, the system determines the active window thereof and automatically performs one of the capture processes based on the determination, thus an image shown on a display is captured and stored in the predetermined folder.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 13, 2007
    Applicant: BENQ CORPORATION
    Inventors: Wei Sheng Tseng, Ming Chih Yuan, Ming Te Liu