Patents by Inventor Yu-Hsiang Wang

Yu-Hsiang 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).

  • Publication number: 20220345123
    Abstract: A clock generator includes a pulse generator and a duty cycle correction circuit. The pulse generator is configured to receive an input clock signal and generate a pulse signal according to the input clock signal. The duty cycle correction circuit, coupled to the pulse generator, is configured to adjust a duty cycle of the pulse signal to generate an output clock signal.
    Type: Application
    Filed: April 25, 2021
    Publication date: October 27, 2022
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yi-Chuan Liu
  • Publication number: 20220343833
    Abstract: A display control system includes a plurality of driver circuits connected in series. A driver circuit among the plurality of driver circuits includes a receiver, a duty cycle correction circuit and a transmitter. The receiver is configured to receive a first signal from a previous driver circuit among the plurality of driver circuits. The duty cycle correction circuit, coupled to the receiver, is configured to adjust a duty cycle of the first signal to generate a second signal. The transmitter, coupled to the duty cycle correction circuit, is configured to transmit the second signal to a next driver circuit among the plurality of driver circuits.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 27, 2022
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu
  • Patent number: 11482293
    Abstract: A control system includes a plurality of driving circuits coupled in series, which includes a first driving circuit and a second driving circuit. The first driving circuit includes a first receiver, a first transmitter and a replica receiver. The first transmitter is coupled to the first receiver, and the replica receiver is coupled to an output terminal of the first transmitter. The second driving circuit, coupled to the first driving circuit, includes a second receiver and a second transmitter. The second receiver is coupled to the first transmitter, and the second transmitter is coupled to the second receiver.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: October 25, 2022
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu, Yi-Yang Tsai, Po-Hsiang Fang
  • Patent number: 11430382
    Abstract: A LED driving apparatus with differential signal interfaces is introduced, including: N-stages LED drivers, wherein the first stage LED driver receives a first data packet differential signal and a first clock differential signal and outputs a second data packet differential signal and a second clock differential signal, the Mth stage LED driver receives a Mth data packet differential signal and a Mth clock differential signal and outputs a (M+1)th data packet differential signal and a (M+1)th clock differential signal.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: August 30, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Po-Hsiang Fang, Ju-Lin Huang
  • Publication number: 20220254305
    Abstract: A LED driving apparatus with clock embedded cascaded LED drivers is introduced, including: a plurality of LED drivers, wherein the first stage LED driver receives an original data signal and outputs a first data signal, the Nth stage LED driver receives a (N?1)th data signal and outputs a Nth data signal. The Nth stage LED driver includes a clock data recovery circuit generating a recovery clock signal and a recovery data signal according to the (N?1)th data signal; and a first transmitter outputting the Nth data signal according to the recovery clock signal and the recovery data signal.
    Type: Application
    Filed: April 14, 2022
    Publication date: August 11, 2022
    Applicant: Novatek Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu
  • Publication number: 20220220644
    Abstract: A warp scheduling method includes: storing plural of first warps issued to a streaming multiprocessor in an instruction buffer module; marking plural of second warps which are able to be scheduled in the first warps by a schedulable warp indication window, wherein the number of the marked second warps is the size of the schedulable warp indication window; sampling the read/storage unit stall cycle in each time interval to obtain a read/storage unit stall cycle proportion; comparing the read/storage unit stall cycle proportion with the stall cycle threshold, and adjusting the size of the schedulable warp indication window and determining the second warps according to the comparison result; issuing the second warps from the instruction buffer module to a corresponding one of the processing modules for execution.
    Type: Application
    Filed: April 12, 2021
    Publication date: July 14, 2022
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Chung-ho CHEN, Chien-ming CHIU, Yu-hsiang WANG
  • Patent number: 11367390
    Abstract: A display apparatus and a method for noise reduction are introduced. The method comprises steps of sensing a first pixel signal being superimposed by noises from a first pixel through a first sensing line in a first phase of a sensing operation and sensing a first noise signal from the first sensing line in a second phase of the sensing operation. The method further comprises steps of sensing a second noise signal from a second sensing line in the first phase of the sensing operation, and sensing a third noise signal from the second sensing line in the second phase of the sensing operation. The method further removes the noises that are superimposed to the first pixel signal according to a difference between the first pixel signal and the first noise signal and a difference between the second noise signal and the third noise signal to generate a denoised sensing value of the first pixel.
    Type: Grant
    Filed: June 2, 2019
    Date of Patent: June 21, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Keko-Chun Liang, Yu-Hsiang Wang, Jhih-Siou Cheng, Yi-Chuan Liu, Ju-Lin Huang
  • Patent number: 11341904
    Abstract: A LED driving apparatus with clock embedded cascaded LED drivers is introduced, including: a plurality of LED drivers, wherein the first stage LED driver receives an original data signal and outputs a first data signal, the Nth stage LED driver receives a (N?1)th data signal and outputs a Nth data signal. The Nth stage LED driver includes a clock data recovery circuit generating a recovery clock signal and a recovery data signal according to the (N?1)th data signal; and a first transmitter outputting the Nth data signal according to the recovery clock signal and the recovery data signal.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: May 24, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu
  • Publication number: 20220044748
    Abstract: A control system includes a plurality of driving circuits coupled in series, which includes a first driving circuit and a second driving circuit. The first driving circuit includes a first receiver, a first transmitter and a replica receiver. The first transmitter is coupled to the first receiver, and the replica receiver is coupled to an output terminal of the first transmitter. The second driving circuit, coupled to the first driving circuit, includes a second receiver and a second transmitter. The second receiver is coupled to the first transmitter, and the second transmitter is coupled to the second receiver.
    Type: Application
    Filed: June 30, 2021
    Publication date: February 10, 2022
    Applicant: NOVATEK Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu, Yi-Yang Tsai, Po-Hsiang Fang
  • Publication number: 20220006608
    Abstract: A transmitter is configured to transmit a series of command signals and a series of data signals. The transmitter includes a serializer and a multiplexer. The serializer is configured to generate the series of data signals.
    Type: Application
    Filed: January 31, 2021
    Publication date: January 6, 2022
    Inventors: Yong-Ren Fang, Yu-Hsiang Wang, Che-Wei Yeh
  • Publication number: 20210383749
    Abstract: A LED driving apparatus with differential signal interfaces is introduced, including: N-stages LED drivers, wherein the first stage LED driver receives a first data packet differential signal and a first clock differential signal and outputs a second data packet differential signal and a second clock differential signal, the Mth stage LED driver receives a Mth data packet differential signal and a Mth clock differential signal and outputs a (M+1)th data packet differential signal and a (M+1)th clock differential signal.
    Type: Application
    Filed: August 24, 2021
    Publication date: December 9, 2021
    Applicant: Novatek Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Po-Hsiang Fang, Ju-Lin Huang
  • Patent number: 11170702
    Abstract: A LED driving apparatus with differential signal interfaces is introduced, including: N-stages LED drivers, wherein the first stage LED driver receives a first data packet differential signal and a first clock differential signal and outputs a second data packet differential signal and a second clock differential signal, the Mth stage LED driver receives a Mth data packet differential signal and a Mth clock differential signal and outputs a (M+1)th data packet differential signal and a (M+1)th clock differential signal.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: November 9, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Po-Hsiang Fang, Ju-Lin Huang
  • Patent number: 11088818
    Abstract: A receiver is configured to receive a series of command signals and a series of data signals. The receiver includes a first clock and data recovery (CDR) circuit, a control circuit and a second CDR circuit. The first CDR circuit is configured to process the series of command signal to generate a clock signal. The control circuit, coupled to the first CDR circuit, is configured to generate a control signal according to the series of command signals and the clock signal received from the first CDR circuit. The second CDR circuit, coupled to the control circuit, is configured to process the series of data signals according to the control signal received from the control circuit.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: August 10, 2021
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Yong-Ren Fang, Yu-Hsiang Wang, Che-Wei Yeh
  • Patent number: 11010136
    Abstract: A random bit stream generator which includes a pseudo-random bit stream generator and a multi-stage noise shaping (MASH) delta-sigma modulator is introduced. The pseudo-random bit stream generator may generate a first random bit stream according to a first clock signal. The MASH delta-sigma modulator is coupled to the first random bit stream generator to receive the first random bit stream and output a second random bit stream according to the first random bit stream and a second clock signal. A frequency of the second clock signal is greater than a frequency of the first clock signal, and the random bit stream has bell-shaped distribution. A method of generating a random bit stream having bell-shaped distribution adapted to a random bit stream generator is also introduced.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: May 18, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang
  • Publication number: 20210118359
    Abstract: A LED driving apparatus with clock embedded cascaded LED drivers is introduced, including: a plurality of LED drivers, wherein the first stage LED driver receives an original data signal and outputs a first data signal, the Nth stage LED driver receives a (N?1)th data signal and outputs a Nth data signal. The Nth stage LED driver includes a clock data recovery circuit generating a recovery clock signal and a recovery data signal according to the (N?1)th data signal; and a first transmitter outputting the Nth data signal according to the recovery clock signal and the recovery data signal.
    Type: Application
    Filed: December 30, 2020
    Publication date: April 22, 2021
    Applicant: Novatek Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu
  • Publication number: 20210049952
    Abstract: A LED driving apparatus with clock embedded cascaded LED drivers is introduced, including: a plurality of LED drivers, wherein the first stage LED driver receives an original display data signal and outputs a first display data signal, the Nth stage LED driver receives a (N?1)th display data signal and outputs a Nth display data signal. The Nth stage LED driver includes a clock data recovery circuit generating a recovery clock signal and a recovery data signal according to a first phase difference between the (N?1)th display data signal and the recovery clock signal; and a first transmitter outputting the Nth display data signal according to the recovery clock signal and the recovery data signal.
    Type: Application
    Filed: April 7, 2020
    Publication date: February 18, 2021
    Applicant: Novatek Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu
  • Publication number: 20210049956
    Abstract: A LED driving apparatus with differential signal interfaces is introduced, including: N-stages LED drivers, wherein the first stage LED driver receives a first data packet differential signal and a first clock differential signal and outputs a second data packet differential signal and a second clock differential signal, the Mth stage LED driver receives a Mth data packet differential signal and a Mth clock differential signal and outputs a (M+1)th data packet differential signal and a (M+1)th clock differential signal.
    Type: Application
    Filed: August 27, 2020
    Publication date: February 18, 2021
    Applicant: Novatek Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Po-Hsiang Fang, Ju-Lin Huang
  • Patent number: 10725486
    Abstract: A reference voltage generator includes a detecting voltage provider, a comparator, and a core circuit. The detecting voltage provider provides a detecting voltage with a first voltage level corresponding to a voltage coefficient. The comparator compares the first voltage level of the detecting voltage with a plurality of sampled amplitudes of an input signal to respectively generate a plurality of comparison results. The core circuit is used to: collect a plurality of first comparison results associated with a current received bit of a preset value from the comparison results; take the voltage coefficient as a first boundary voltage coefficient in response to the first comparison results satisfying a first condition; take the voltage coefficient as a second boundary voltage coefficient in response to the first comparison results satisfying a second condition. The reference circuit generates a reference voltage according to the first and second boundary voltage coefficients.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: July 28, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: Yong-Ren Fang, Shen-Iuan Liu, Ju-Lin Huang, Tzu-Chien Tzeng, Keko-Chun Liang, Yu-Hsiang Wang, Che-Wei Yeh
  • Publication number: 20200202776
    Abstract: A display apparatus and a method for noise reduction are introduced. The method comprises steps of sensing a first pixel signal being superimposed by noises from a first pixel through a first sensing line in a first phase of a sensing operation and sensing a first noise signal from the first sensing line in a second phase of the sensing operation. The method further comprises steps of sensing a second noise signal from a second sensing line in the first phase of the sensing operation, and sensing a third noise signal from the second sensing line in the second phase of the sensing operation. The method further removes the noises that are superimposed to the first pixel signal according to a difference between the first pixel signal and the first noise signal and a difference between the second noise signal and the third noise signal to generate a denoised sensing value of the first pixel.
    Type: Application
    Filed: June 2, 2019
    Publication date: June 25, 2020
    Applicant: Novatek Microelectronics Corp.
    Inventors: Keko-Chun Liang, Yu-Hsiang Wang, Jhih-Siou Cheng, Yi-Chuan Liu, Ju-Lin Huang
  • Publication number: 20190243612
    Abstract: A random bit stream generator which includes a pseudo-random bit stream generator and a multi-stage noise shaping (MASH) delta-sigma modulator is introduced. The pseudo-random bit stream generator may generate a first random bit stream according to a first clock signal. The MASH delta-sigma modulator is coupled to the first random bit stream generator to receive the first random bit stream and output a second random bit stream according to the first random bit stream and a second clock signal. A frequency of the second clock signal is greater than a frequency of the first clock signal, and the random bit stream has bell-shaped distribution. A method of generating a random bit stream having bell-shaped distribution adapted to a random bit stream generator is also introduced.
    Type: Application
    Filed: October 15, 2018
    Publication date: August 8, 2019
    Applicant: Novatek Microelectronics Corp.
    Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang