Patents by Inventor Jia Du

Jia Du 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).

  • ACTIVE PILLOW SYSTEM AND A METHOD FOR MANIPULATING A PERSON'S RESTING CONDITIONS
    Publication number: 20120142999
    Abstract: The present invention relates to a an active pillow system and a method for manipulating a person's resting conditions, wherein the actual resting conditions of the person are determined by a sensor unit, an actigraph, a temperature sensor and/or a humidity sensor for instance, and wherein an acoustic synthetic jet cooling mechanism, is triggered by the determined actual resting conditions for manipulating the person's resting conditions.
    Type: Application
    Filed: May 11, 2010
    Publication date: June 7, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Mirela Alina Albu, Philip Steven Newton, Pedro Fonseca, Dmitry Chestakov, Jia Du, Vincentius Paulus Buil, Liesbeth Scholten, Serverius Petrus Paulus Pronk, Fiona Rees
  • CLOCK DEVICE AND METHOD FOR PROCESSING A CLOCK DEVICE
    Publication number: 20120092966
    Abstract: The present invention relates to a clock device and a method for processing a clock device, wherein the clock device comprises a control unit which operates a display unit in a first operating mode or in a second operating mode, wherein the display unit displays the exact current time in the second operating mode and fades out the exact current time in the first operating mode.
    Type: Application
    Filed: June 10, 2010
    Publication date: April 19, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Jia Du, Adrianus Sempel, Petronella Hendrika Zwartkruis-pelgrim, Vicentius Paulus Buil
  • Charging device for camera flash
    Patent number: 7522831
    Abstract: A charging device (1) for a camera flash includes a digital signal processor (10) providing a pulse width modulation signal and receiving a feedback signal, a voltage boosting circuit (20) electrically connected with the digital signal processor for outputting an induced current under the control of the pulse width modulation signal, a flash capacitor (40), and a charging circuit (30) electrically connected with the voltage boosting circuit and the flash capacitor for charging the flash capacitor by the induced current. The charging circuit includes a protection circuit (310) for protecting the flash capacitor and a feedback circuit (320) for outputting the feedback signal to the digital signal processor.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: April 21, 2009
    Assignee: Asia Optical Co., Inc.
    Inventors: Wang Chang Feng, Wei-Jia Du
  • Charging device for camera flash
    Publication number: 20060159441
    Abstract: A charging device (1) for a camera flash includes a digital signal processor (10) providing a pulse width modulation signal and receiving a feedback signal, a voltage boosting circuit (20) electrically connected with the digital signal processor for outputting an induced current under the control of the pulse width modulation signal, a flash capacitor (40), and a charging circuit (30) electrically connected with the voltage boosting circuit and the flash capacitor for charging the flash capacitor by means of the induced current. The charging circuit includes a protection circuit (310) for protecting the flash capacitor and a feedback circuit (320) for outputting the feedback signal to the digital signal processor.
    Type: Application
    Filed: June 29, 2005
    Publication date: July 20, 2006
    Inventors: Wang Feng, Wei-Jia Du