Patents by Inventor Gang Zha

Gang Zha 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: 12004150
    Abstract: Embodiments of this application disclose a transmission processing method and apparatus, a device, and a storage medium. The method is applied to a first device, and includes: receiving a pre-scheduling message that is transmitted by a second device through a first channel; reading, from the pre-scheduling message, a pre-scheduling moment and a pre-scheduling frequency band that are used for pre-scheduling transmission between the first device and the second device; and transmitting, before the pre-scheduling moment is reached, uplink target data and indication information to the second device by using any band other than the pre-scheduling band, the indication information being used for indicating cancellation of the pre-scheduling transmission.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: June 4, 2024
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Yunbo Han, Yiyong Zha, Binhui Ning, Gang Wu, Xing Meng
  • Patent number: 8947060
    Abstract: An embodiment of the invention relates to a power converter formed with an error amplifier and a related method. In an embodiment, a first switch is coupled in series with an error amplifier compensation capacitor. Upon detection of a current level greater than a threshold level, the compensation capacitor is decoupled from the error amplifier by opening the first switch. In an embodiment, a second switch is coupled in parallel with the compensation capacitor, and the current-sensing circuit enables conductivity of the second switch to discharge the compensation capacitor upon detection of the current level greater than the threshold level. The second switch is opened upon detection of the current level less than the threshold level. In an embodiment, the current-sensing circuit controls an output current of the power converter at a current-limit level upon detection of the internal current level greater than the threshold level.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: February 3, 2015
    Assignee: STMicroelectronics (Shenzhen) R&D Co., Ltd.
    Inventors: Da Song Lin, Ni Zeng, Gang Zha, Xianfeng Xiong, Yiwei Zhang
  • Patent number: 8648641
    Abstract: A voltage controlled variable resistor circuit is configured to variably attenuate a variable source signal. A fixed attenuation circuit is coupled to receive the variable source signal and output an attenuated variable source signal. The variable source signal is further applied across a variable resistive divider formed of a fixed resistive circuit and a variable resistive circuit. The variable resistive circuit has a first input configured to receive the attenuated variable source signal and a second input configured to receive a variable resistance control signal. The variable resistive circuit is configured to have a resistance which is variable in response to the attenuated variable source signal and the variable resistance control signal.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: February 11, 2014
    Assignee: STMicroelectronics (Shenzhen) R&D Co. Ltd.
    Inventor: Gang Zha
  • Publication number: 20110156688
    Abstract: An embodiment of the invention relates to a power converter formed with an error amplifier and a related method. In an embodiment, a first switch is coupled in series with an error amplifier compensation capacitor. Upon detection of a current level greater than a threshold level, the compensation capacitor is decoupled from the error amplifier by opening the first switch. In an embodiment, a second switch is coupled in parallel with the compensation capacitor, and the current-sensing circuit enables conductivity of the second switch to discharge the compensation capacitor upon detection of the current level greater than the threshold level. The second switch is opened upon detection of the current level less than the threshold level. In an embodiment, the current-sensing circuit controls an output current of the power converter at a current-limit level upon detection of the internal current level greater than the threshold level.
    Type: Application
    Filed: November 23, 2010
    Publication date: June 30, 2011
    Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd
    Inventors: Da Song Lin, Ni Zeng, Gang Zha, Xianfeng Xiong, Yiwei Zhang
  • Publication number: 20100123508
    Abstract: A first switching circuit has an input for receiving a first input signal, and a second switching circuit has an input for receiving a second input signal. A node is connected to receive outputs from both the first and second switching circuits. A filter receives an unfiltered signal from the node to generate an output signal. A circuit is provided to alternately actuate the first and second switching circuits during a transition time period so as to smoothly transition the output of the filter between the first and second input signals. At least one of the first and second input signals is a time-varying analog signal. The smooth transition between the first and second input signals has a shape determined by pulse width and frequency characteristics of pulses output by the circuit to alternately actuate the first and second switching circuits. The shape may include a linear ramp, an S-shaped curve, a parabolic curve and a hyperbolic curve.
    Type: Application
    Filed: October 13, 2009
    Publication date: May 20, 2010
    Applicants: STMicroelectronics (Shenzhen) R&D Co. Ltd., STMicroelectronics Design & Application GmbH
    Inventors: Gang Zha, Guenter Neidhardt, Peter Kirchlechner
  • Patent number: 7573246
    Abstract: A compensated regulator includes a transconductance stage having a positive input for receiving a reference voltage, a negative input, and an output, an adjustable compensation block coupled between the output of the transconductance stage and ground, a feedback circuit having a first node coupled to the output of the compensated regulator, a second node coupled to the negative input of the transconductance stage, and a third node coupled to ground, and a driver stage having an input coupled to the output of the transconductance stage, a current output coupled to the output of the compensated regulator, and a sense output coupled to the adjustable compensation block.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: August 11, 2009
    Assignee: Shenzhen STS Microelectronics Co., Ltd.
    Inventors: DaSong Lin, Gang Zha
  • Publication number: 20070216382
    Abstract: A compensated regulator includes a transconductance stage having a positive input for receiving a reference voltage, a negative input, and an output, an adjustable compensation block coupled between the output of the transconductance stage and ground, a feedback circuit having a first node coupled to the output of the compensated regulator, a second node coupled to the negative input of the transconductance stage, and a third node coupled to ground, and a driver stage having an input coupled to the output of the transconductance stage, a current output coupled to the output of the compensated regulator, and a sense output coupled to the adjustable compensation block.
    Type: Application
    Filed: March 9, 2007
    Publication date: September 20, 2007
    Applicant: Shenzhen STS Microelectronics Co., Ltd.
    Inventors: DaSong Lin, Gang Zha
  • Patent number: 6891437
    Abstract: A circuit structure for performing current amplification. The circuit structure may be standardized as a current amplifier cell such that many types of applications requiring current amplification may be created. The basic amplifier cell, which may accept voltage or current sources as an input signal, produces two identical output signals which may be used for feedback or serve as input to additional amplifier stages. This simple structure may be extended to perform current amplification with variable gain or AC or DC voltage-to-current conversion through the use of appropriately selected resistive elements.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: May 10, 2005
    Assignee: Shenzhen STS Microelectronics Co., Ltd.
    Inventors: Gang Zha, Solomon Ng
  • Patent number: 6542027
    Abstract: A bandgap reference circuit has a pre-regulator that achieves a low temperature coefficient through the use of a first component that generates a first voltage having a negative temperature coefficient and a second component coupled in series to the first component and which generates a second voltage having a positive temperature coefficient. This low temperature coefficient in the pre-regulator allows the bandgap reference circuit to output the bandgap voltage VBG with a low temperature coefficient.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: April 1, 2003
    Assignee: Shenzhen STS Microelectronics Co. Ltd
    Inventors: Gang Zha, Solomon K. Ng
  • Publication number: 20020167344
    Abstract: A circuit structure for performing current amplification. The circuit structure may be standardized as a current amplifier cell such that many types of applications requiring current amplification may be created. The basic amplifier cell, which may accept voltage or current sources as an input signal, produces two identical output signals which may be used for feedback or serve as input to additional amplifier stages. This simple structure may be extended to perform current amplification with variable gain or AC or DC voltage-to-current conversion through the use of appropriately selected resistive elements.
    Type: Application
    Filed: February 8, 2002
    Publication date: November 14, 2002
    Inventors: Gang Zha, Solomon Ng
  • Patent number: 6456058
    Abstract: A temperature stable, integrated circuit full wave level detector incorporating a single stage operational amplifier design which does not require, as in prior art implementations, two operational amplifiers to perform a full wave rectification function on an input alternating current (“AC”) signal followed by a comparator to detect the resultant signal level. The full wave level detector of the present invention utilizes but a single amplifier and some additional peripheral components resulting in a saving in on-chip die area in an integrated circuit (“IC”) implementation while also exhibiting excellent temperature stability characteristics.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: September 24, 2002
    Assignee: Shenzhen STS Microelectronics Co. Ltd.
    Inventor: Gang Zha
  • Publication number: 20020050854
    Abstract: A bandgap reference circuit has a pre-regulator that achieves a low temperature coefficient through the use of a first component that generates a first voltage having a negative temperature coefficient and a second component coupled in series to the first component and which generates a second voltage having a positive temperature coefficient. This low temperature coefficient in the pre-regulator allows the bandgap reference circuit to output the bandgap voltage VBG with a low temperature coefficient.
    Type: Application
    Filed: November 20, 2001
    Publication date: May 2, 2002
    Inventors: Gang Zha, Solomon K. Ng
  • Patent number: 6344770
    Abstract: A bandgap reference circuit has a pre-regulator that achieves a low temperature coefficient through the use of a VBE multiplier and feedback from the output bandgap voltage VBG. This low temperature coefficient in the pre-regulator allows the bandgap reference circuit to output the bandgap voltage VBG with a low temperature coefficient.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: February 5, 2002
    Assignee: Shenzhen STS Microelectronics Co. LTD
    Inventors: Gang Zha, Solomon K. Ng