Patents by Inventor Chao Zeng

Chao Zeng 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: 20170347416
    Abstract: An indicator circuit (10) includes a first light emission device (R1 and D1) configured to be driven by a first voltage (Von) to emit light; a second light emission device (R2 and D2) configured to be driven by a second voltage (Vstb) to emit light; and a control device (Q1, D3 and R3) configured to be driven by the first voltage (Von) and the second voltage (Vstb) to allow the first light emission device (R1 and D1) to be driven when the first voltage (Von) is active but the second voltage (Vstb) is not active and not to allow the first light emission device (R1 and D1) to be driven when the first voltage (Von) and the second voltage (Vstb) are active.
    Type: Application
    Filed: December 10, 2014
    Publication date: November 30, 2017
    Inventors: Zhijun LIAO, Chao ZENG, Ren ZHANG
  • Publication number: 20170303360
    Abstract: The present invention discloses a television backlight driving device and the driving method thereof, the said television backlight driving device comprises: an AC-DC module and an LED driving module; when a power is on, the said AC-DC module transforms an input supplied AC power into a DC power before supplying to the backlight LED lightstrip; comparing to the existing backlight driving methods, there is no second process of DC-DC needed, saving a system cost of the power, and improving an efficiency of the system; when the LED driving module determines the detection current larger than the preset current but smaller than the first threshold, a constant-current output for LED current is controlled by adjusting the duty ratio; when the detection current is larger than the first threshold or smaller than the preset current, the LED driving module feeds back the detection current to the AC-DC module; the AC-DC module then controls the DC voltage according to the detection current; different methods for adjustme
    Type: Application
    Filed: January 6, 2016
    Publication date: October 19, 2017
    Inventors: Xiangfeng HU, Chao ZENG
  • Publication number: 20170102751
    Abstract: The present disclosure provides a tablet computer. The tablet computer includes a battery and a voltage regulator circuit, wherein the voltage regulator circuit includes a step-up circuit for raising a voltage supplied by the battery in order to utilizing the raised voltage to charge an external device connected with the tablet computer.
    Type: Application
    Filed: September 25, 2015
    Publication date: April 13, 2017
    Inventor: Chao ZENG
  • Patent number: 8087817
    Abstract: Disclosed is an auto-diluting and rinsing apparatus, comprising: a concentrated detergent container for holding concentrated detergent to be diluted; a diluter container for holding diluter, which is used to dilute the concentrated detergent; and a diluted detergent container for holding diluted detergent for rinsing, which are formed by mixing the concentrated detergent and the diluter; wherein the concentrated detergent container and the diluter container are communicated with a high pressure gas source, respectively, and the apparatus further comprising: a gas path controller, configured to control the diluted detergent container to be communicated with a low pressure gas source via a first gas path during a dilution process; and to be communicated with a high pressure gas source during a rinsing process.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: January 3, 2012
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Xueping Jiang, Zhigang Zhong, Bo Liu, Chao Zeng
  • Patent number: 7626697
    Abstract: The present invention provides a grating photometer comprising a light splitting box, a preamplifier box, a photodiode array and optical assembly. The light splitting box has a light splitting chamber. There are provided a first extinction hole and second extinction hole respectively on the side wall of the light splitting chamber and on the preamplifier box to correspond to zero order spectrum line. The first hole is a through hole and the second hole is a blind hole. The configuration of the first and second extinction holes direct the zero order spectrum to go into the second extinction hole, as a result, generates a rather small number of stray light in the light splitting chamber coming from the scattering of the zero order spectrum from the second extinction hole, thus suppresses effectively the stray light and improves the signal-to-noise ratio of the photometer.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: December 1, 2009
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Jinhong Qiu, Chao Zeng, Jing Cao
  • Publication number: 20080125910
    Abstract: Disclosed is an auto-diluting and rinsing apparatus, comprising: a concentrated detergent container for holding concentrated detergent to be diluted; a diluter container for holding diluter, which is used to dilute the concentrated detergent; and a diluted detergent container for holding diluted detergent for rinsing, which are formed by mixing the concentrated detergent and the diluter; wherein the concentrated detergent container and the diluter container are communicated with a high pressure gas source, respectively, and the apparatus further comprising: a gas path controller, configured to control the diluted detergent container to be communicated with a low pressure gas source via a first gas path during a dilution process; and to be communicated with a high pressure gas source during a rinsing process.
    Type: Application
    Filed: November 28, 2007
    Publication date: May 29, 2008
    Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD
    Inventors: Xueping Jiang, Zhigang Zhong, Bo Liu, Chao Zeng
  • Publication number: 20080102528
    Abstract: An automatic biochemical analyzing method is described, in which a row of reaction containers is cyclically arrayed such that an operating cycle is formed that is defined between dispensing the preceding sample and the sequent sample. In each cycle, the reaction containers are transferred so as to motivate at least one reaction container to pass across an optical detecting channel and cause the reaction containers to make an intermediate pause when no sample is dispensed. When the reaction containers pause, the sample is dispensed to a reaction container at a sample dispensing position. When the reaction containers are at the intermediate pause, the first reagent is dispensed to a reaction container at a first reagent dispensing position. In each reaction container, the operation cycle when the sample is dispensed follows the operation cycle when the first reagent is dispensed. An automatic biochemical analyzing apparatus is also disclosed.
    Type: Application
    Filed: October 24, 2007
    Publication date: May 1, 2008
    Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Zhi Xu, Chuanfen Xie, Chao Zeng
  • Publication number: 20080068598
    Abstract: The present invention provides a grating photometer comprising a light splitting box a preamplifier box, a photodiode array and optical assembly. The light splitting box has a light splitting chamber. There are provided a first extinction hole and second extinction hole respectively on the side wall of the light splitting chamber and on the preamplifier box to correspond to zero order spectrum line. The first hole is a through hole and the second hole is a blind hole the configuration of the first and second extinction holes direct the zero order spectrum to go into the second extinction hole, as a result, generates a rather small number of stray light in the light splitting chamber coming from the scattering of the zero order spectrum from the second extinction hole, thus suppresses effectively the stray light and improves tho signal-to-noise ratio of the photometer.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 20, 2008
    Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Jinhong Qiu, Chao Zeng, Jing Cao