Patents by Inventor Tzyuan Shiu

Tzyuan Shiu 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: 10637523
    Abstract: A method for avoiding inter-modulation distortion in a communications apparatus capable of supporting carrier aggregation and communicating with a peer communications apparatus in a wireless network via at least a first CC and a second CC includes: determining a frequency adjustment value for adjusting a first oscillating frequency of a first local oscillation signal utilized for processing an RF signal of the first CC or a second oscillating frequency of a second LO signal utilized for processing an RF signal of the second CC when an RF signal or a baseband signal of the second CC is interfered with by an inter-modulation distortion signal contributed by any signal component related to the first CC; and adjusting the first oscillating frequency or the second oscillating frequency according to the frequency adjustment value.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: April 28, 2020
    Assignee: MEDIATEK INC.
    Inventors: Tzyuan Shiu, Sheng-Che Tseng, Shih-Chieh Yen, Chi-Yao Yu
  • Publication number: 20180269912
    Abstract: A method for avoiding inter-modulation distortion in a communications apparatus capable of supporting carrier aggregation and communicating with a peer communications apparatus in a wireless network via at least a first CC and a second CC includes: determining a frequency adjustment value for adjusting a first oscillating frequency of a first local oscillation signal utilized for processing an RF signal of the first CC or a second oscillating frequency of a second LO signal utilized for processing an RF signal of the second CC when an RF signal or a baseband signal of the second CC is interfered with by an inter-modulation distortion signal contributed by any signal component related to the first CC; and adjusting the first oscillating frequency or the second oscillating frequency according to the frequency adjustment value.
    Type: Application
    Filed: May 11, 2018
    Publication date: September 20, 2018
    Inventors: Tzyuan SHIU, Sheng-Che TSENG, Shih-Chieh YEN, Chi-Yao YU
  • Patent number: 9998160
    Abstract: A method for avoiding inter-modulation distortion in a communications apparatus capable of supporting carrier aggregation and communicating with a peer communications apparatus in a wireless network via at least a first CC and a second CC includes: determining a frequency adjustment value for adjusting a first oscillating frequency of a first local oscillation signal utilized for processing an RF signal of the first CC or a second oscillating frequency of a second LO signal utilized for processing an RF signal of the second CC when an RF signal or a baseband signal of the second CC is interfered with by an inter-modulation distortion signal contributed by any signal component related to the first CC; and adjusting the first oscillating frequency or the second oscillating frequency according to the frequency adjustment value.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: June 12, 2018
    Assignee: MEDIATEK INC.
    Inventors: Tzyuan Shiu, Sheng-Che Tseng, Shih-Chieh Yen, Chi-Yao Yu
  • Patent number: 9985590
    Abstract: According to at least one aspect, a communication system is provided. The communication system includes a power amplifier configured to amplify an input signal to generate an amplified output signal and provide the amplified output signal to an antenna, a power supply coupled to the power amplifier and configured to provide power to the power amplifier based on a power supply control signal, and a controller coupled to the power supply. The controller is configured to identify a target transmit power level for transmission of a wireless signal, generate the power supply control signal based on the target transmit power level using information indicative of a relationship between the target transmit power level and a setting of the power supply, generate performance information indicative of a characteristic of the communication system when the wireless signal is transmitted, and update the information indicative of the relationship using the performance information.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: May 29, 2018
    Assignee: MediaTek Inc.
    Inventors: Po-Sen Tseng, Wei-Kai Chang, I-No Liao, Tzyuan Shiu, Hsin-Hung Chen, Caiyi Wang
  • Publication number: 20180131398
    Abstract: A method for avoiding inter-modulation distortion in a communications apparatus capable of supporting carrier aggregation and communicating with a peer communications apparatus in a wireless network via at least a first CC and a second CC includes: determining a frequency adjustment value for adjusting a first oscillating frequency of a first local oscillation signal utilized for processing an RF signal of the first CC or a second oscillating frequency of a second LO signal utilized for processing an RF signal of the second CC when an RF signal or a baseband signal of the second CC is interfered with by an inter-modulation distortion signal contributed by any signal component related to the first CC; and adjusting the first oscillating frequency or the second oscillating frequency according to the frequency adjustment value.
    Type: Application
    Filed: March 22, 2017
    Publication date: May 10, 2018
    Inventors: Tzyuan SHIU, Sheng-Che TSENG, Shih-Chieh YEN, Chi-Yao YU
  • Publication number: 20170265146
    Abstract: A control method for a radio frequency (RF) receiver of a user equipment (UE) and UE are provided. The control method includes the steps of detecting whether at least one blocker exists; determining a current scenario of the UE when the blocker does not exist; obtaining a signal-to-noise-ratio (SNR) target corresponding to the current scenario; and selecting an operation mode from a plurality of power modes according to the SNR target to operate the RF receiver.
    Type: Application
    Filed: March 9, 2017
    Publication date: September 14, 2017
    Inventors: Tzyuan SHIU, Tzung-Han WU, Shih-Chieh YEN, Wei-Nan SUN, Wei Yu LAI, Caiyi WANG
  • Publication number: 20170214370
    Abstract: According to at least one aspect, a communication system is provided. The communication system includes a power amplifier configured to amplify an input signal to generate an amplified output signal and provide the amplified output signal to an antenna, a power supply coupled to the power amplifier and configured to provide power to the power amplifier based on a power supply control signal, and a controller coupled to the power supply. The controller is configured to identify a target transmit power level for transmission of a wireless signal, generate the power supply control signal based on the target transmit power level using information indicative of a relationship between the target transmit power level and a setting of the power supply, generate performance information indicative of a characteristic of the communication system when the wireless signal is transmitted, and update the information indicative of the relationship using the performance information.
    Type: Application
    Filed: December 9, 2016
    Publication date: July 27, 2017
    Applicant: MediaTek Inc.
    Inventors: Po-Sen Tseng, Wei-Kai Chang, I-No Liao, Tzyuan Shiu, Hsin-Hung Chen, Caiyi Wang
  • Patent number: 9503302
    Abstract: The present invention provides a method for calibrating a communication circuit. In an embodiment, the method may include: cooperating start of a calibration procedure, and, by the communication circuit, signaling a calibration signal between a test equipment and the communication circuit. The calibration signal may include a plurality of coexisting component signals respectively at a plurality of calibration frequencies. Associated communication circuit is also disclosed.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: November 22, 2016
    Assignee: MEDIATEK INC.
    Inventors: Yu-Te Lin, Tzyuan Shiu
  • Publication number: 20150055691
    Abstract: The present invention provides a method for calibrating a communication circuit. In an embodiment, the method may include: cooperating start of a calibration procedure, and, by the communication circuit, signaling a calibration signal between a test equipment and the communication circuit. The calibration signal may include a plurality of coexisting component signals respectively at a plurality of calibration frequencies. Associated communication circuit is also disclosed.
    Type: Application
    Filed: July 14, 2014
    Publication date: February 26, 2015
    Inventors: Yu-Te Lin, Tzyuan Shiu