Patents by Inventor Guangbing Chen

Guangbing Chen 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: 20180054168
    Abstract: The present invention provides a frequency-compensated transconductance amplifier, includes an input stage consisting of NMOS transistors M1 and M2, a first-stage active load consisting of PMOS transistors M3 and M4, a first-stage tail current source consisting of a constant current source Iss, a second-stage input transistor consisting of a PMOS transistor M5, a second-stage constant current source consisting of an NMOS transistor M6, a load capacitor consisting of a capacitor CL, and a frequency compensation network formed by sequentially connecting a gain stage GAIN, a compensating resistor Rc and a compensating capacitor Cc in series.
    Type: Application
    Filed: January 26, 2016
    Publication date: February 22, 2018
    Inventors: DAIGUO XU, GANGYI HU, RUZHANG LI, JIAN'AN WANG, GUANGBING CHEN, YUXIN WANG, TAO LIU, LU LIU, MINMING DENG, HANFU SHI, XU WANG
  • Publication number: 20180037705
    Abstract: Provided in the present invention are a resin composition and a pre-preg and a laminate using the composition. The resin composition comprises: (A) a prepolymer of a polyolefin resin and a bifunctional maleimide or a multifunctional maleimide; and, (B) vinyl thermosetting polyphenylene ether, where with the weight of the prepolymer of the polyolefin resin and the bifunctional maleimide or the multifunctional maleimide being 100 parts by weight, the weight of the vinyl thermosetting polyphenylene ether is 200 to 1000 parts by weight. The present invention, by employing the prepolymer of the polyolefin resin and the bifunctional maleimide or the multifunctional maleimide, solves the problem of incompatibility of the bifunctional maleimide or the multifunctional maleimide with the polyolefin resin and vinyl thermosetting polyphenylene ether. An aqueous glue solution so mixed is uniform and consistent, the pre-preg has a uniform expression, and a substrate resin area is free of a phase-separation problem.
    Type: Application
    Filed: September 18, 2015
    Publication date: February 8, 2018
    Inventors: Xianping ZENG, Guangbing CHEN, Chiji GUAN, Wenhua YANG
  • Publication number: 20180041221
    Abstract: An analog-to-digital converter of non-binary capacitor array with redundancy bits and its chip. The non-binary capacitor array with redundancy bits comprises a common-mode voltage, analog signal input, no less than one redundancy bit capacitor and multiple capacitors; each capacitor of capacitors with redundancy bits and multiple capacitors is connected in parallel between common-mode voltage and analog signal input and marked in a sequence from highest to lowest/lowest to highest bit; the sum of the capacitance of capacitors from the lowest bit capacitor to an random capacitor must be no less than the capacitance of the higher bit capacitor adjacent to the random capacitor. The ratio of the capacitance of each capacitor to the capacitance of unit capacitor is set to be positive. The capacitor array is applied into an analog-to-digital converter or fabricated as a chip.
    Type: Application
    Filed: April 9, 2015
    Publication date: February 8, 2018
    Applicant: No. 24 Research Institute of China Electronics Technology Group Corporation
    Inventors: Daiguo Xu, Shiliu Xu, Gangyi Hu, Guangbing Chen, Lu Liu
  • Publication number: 20180037736
    Abstract: The present invention relates to the technical field of copper clad laminates and relates to a resin composition and a pre-preg and a laminate using the composition. The resin composition comprises: (A) a prepolymer of vinyl thermosetting polyphenylene ether and a bifunctional maleimide or a multifunctional maleimide; and, (B) a polyolefin resin. The present invention, by employing the prepolymer of vinyl thermosetting polyphenylene ether and the bifunctional maleimide or the multifunctional maleimide, solves the problem of incompatibility of the bifunctional maleimide or the multifunctional maleimide with the vinyl thermosetting polyphenylene ether and the polyolefin resin. An aqueous glue solution so mixed is uniform and consistent, the prepreg has a uniform expression, and a substrate resin area is free of a phase-separation problem.
    Type: Application
    Filed: September 18, 2015
    Publication date: February 8, 2018
    Inventors: Xianping ZENG, Guangbing CHEN, Chiji GUAN, Wenhua YANG
  • Publication number: 20170214397
    Abstract: The invention provides a clock delay adjusting circuit based on edge addition and an integrated chip thereof.
    Type: Application
    Filed: October 20, 2014
    Publication date: July 27, 2017
    Applicant: NO. 24 RESEARCH INSTITUTE OF CHINA ELECTRONIC TECHNOLOGY CORPORATION
    Inventors: Rongbin HU, Can ZHU, Yonglu WANG, Zhengping ZHANG, Lei ZHANG, Yuhan GAO, Rongke YE, Guangbing CHEN, Yuxin WANG, Dongbing FU
  • Patent number: 9455735
    Abstract: A high-speed sampling front-end circuit is presented that includes a MDAC sampling network, a reference voltage generator circuit, a comparator array, an operational amplifier, an output short-circuit switch, an adjustable clock duty cycle stabilizer, a status control module and a feedback control module. The circuit features low power, high sampling rate and high input bandwidth of sampling network. The time constant of the MDAC sampling network and the comparator array is precisely matched one another to improve input bandwidth of the sampling network. Sampling capacitors are designed as feedback capacitors and DAC calculation capacitors, thereby the operational amplifier doubles feedback coefficient and features 50% bandwidth and 50% power. The cycle stabilizer is adopted to shorten sampling time and extend amplification phase to greatly improve sampling rate. One input reference voltage tends to simplify the design of the reference voltage generator circuit.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: September 27, 2016
    Assignee: NO. 24 RESEARCH INSTITUTE OF CHINA ELECTRONIC TECHNOLOGY CORPORATION
    Inventors: Ting Li, Gangyi Hu, Ruzhang Li, Yan Wang, Lu Liu, Yong Zhang, Xu Wang, Yuxin Wang, Dongbing Fu, Guangbing Chen
  • Publication number: 20160244610
    Abstract: The present invention discloses a resin composition, comprising an unsaturated thermosetting modified polyphenylether resin and an MQ organosilicon resin containing unsaturated double bonds and having a three-dimensional network structure and hydrolytically condensed from monofunctional siloxane unit (M unit) and tetrafunctional silica unit (Q unit). The present invention further discloses a high-frequency circuit substrate prepared from the aforesaid resin composition and the uses of the aforesaid resin composition in the art. The high frequency circuit substrate of the present invention has a high glass transition temperature, a high thermal decomposition temperature, a high interstratified adhesive force, a low dielectric constant and a low dielectric loss tangent, and are very suitable as the circuit substrates of high frequency electronic equipments.
    Type: Application
    Filed: August 11, 2014
    Publication date: August 25, 2016
    Inventors: Guangbing CHEN, Xianping ZENG
  • Publication number: 20150313012
    Abstract: Disclosed in the present invention is a resin composition, comprising a modified polyphenylene ether resin and an organic silicon compound containing unsaturated double bonds. Also disclosed is a method for preparing a high-frequency circuit substrate using the resin composition as described above and a high-frequency circuit substrate obtained by the preparation method. The high-frequency circuit substrate of the present invention has a high glass transition temperature, a high thermal decomposition temperature, a high interlayer adhesive force, a low dielectric constant and a low dielectric loss tangent, and is very suitable as a circuit substrate in a high-frequency electronic device.
    Type: Application
    Filed: January 21, 2013
    Publication date: October 29, 2015
    Inventors: Guangbing CHEN, Xianping ZENG
  • Patent number: 9054681
    Abstract: The present invention pertains to a high speed duty cycle correction and double to single ended conversion circuit for PLL, comprising a reshaper stage, a single-edge detection circuit and a duty cycle restorer. The present invention introduces a way to convert double-ended output of PLL VCO into single-ended signal and adjust duty cycle of PLL VCO's output waveform by 50%, so that the circuit can output single ended clock signal with 50% duty cycle.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: June 9, 2015
    Assignee: China Electronic Technology Corporation, 24th Research Institute
    Inventors: Youhua Wang, Junan Zhang, Dongbing Fu, Gangyi Hu, Jun Liu, Ruzhang Li, Guangbing Chen
  • Publication number: 20150137854
    Abstract: A high-speed sampling front-end circuit is presented that includes a MDAC sampling network, a reference voltage generator circuit, a comparator array, an operational amplifier, an output short-circuit switch, an adjustable clock duty cycle stabilizer, a status control module and a feedback control module. The circuit features low power, high sampling rate and high input bandwidth of sampling network. The time constant of the MDAC sampling network and the comparator array is precisely matched one another to improve input bandwidth of the sampling network. Sampling capacitors are designed as feedback capacitors and DAC calculation capacitors, thereby the operational amplifier doubles feedback coefficient and features 50% bandwidth and 50% power. The cycle stabilizer is adopted to shorten sampling time and extend amplification phase to greatly improve sampling rate. One input reference voltage tends to simplify the design of the reference voltage generator circuit.
    Type: Application
    Filed: April 15, 2013
    Publication date: May 21, 2015
    Inventors: Ting Li, Gangyi Hu, Ruzhang Li, Yan Wang, Lu Liu, Yong Zhang, Xu Wang, Yuxin Wang, Dongbing Fu, Guangbing Chen
  • Publication number: 20130257499
    Abstract: The present invention pertains to a high speed duty cycle correction and double to single ended conversion circuit for PLL, comprising a reshaper stage, a single-edge detection circuit and a duty cycle restorer. The present invention introduces a way to convert double-ended output of PLL VCO into single-ended signal and adjust duty cycle of PLL VCO's output waveform by 50%, so that the circuit can output single ended clock signal with 50% duty cycle.
    Type: Application
    Filed: August 23, 2011
    Publication date: October 3, 2013
    Applicant: China Electronic Technology Corporation
    Inventors: Youhua Wang, Junan Zhang, Dongbing Fu, Gangyi Hu, Jun Liu, Ruzhang Li, Guangbing Chen