Patents by Inventor Duanduan Jian

Duanduan Jian 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).

  • Power supply device, a processing chip for a digital microphone and related digital microphone
    Patent number: 8810220
    Abstract: A power supply device, a processing chip for a digital microphone and related digital microphone are described herein. In one aspect, a power supply device includes: at least two cascaded low-dropout linear regulators. In another aspect, a processing chip for digital microphone includes a processing module and a power supply module, wherein the power supply modules includes at least two cascaded low dropout linear regulators. In another aspect, a digital microphone includes a microphone and a processing chip, wherein the processing chip includes a processing module and a power supply module, wherein the power module includes at least two cascaded low-dropout linear regulators. Embodiments described herein provide a power supply device with higher PSRR.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: August 19, 2014
    Assignee: Beijing KT Micro, Ltd.
    Inventors: Rongrong Bai, Jianting Wang, Duanduan Jian, Wenjing Wang, Jing Cao
  • Power Supply Device, A Processing Chip for a Digital Microphone and related Digital Microphone
    Publication number: 20120086419
    Abstract: A power supply device, a processing chip for a digital microphone and related digital microphone are described herein. In one aspect, a power supply device includes: at least two cascaded low-dropout linear regulators. In another aspect, a processing chip for digital microphone includes a processing module and a power supply module, wherein the power supply modules includes at least two cascaded low dropout linear regulators. In another aspect, a digital microphone includes a microphone and a processing chip, wherein the processing chip includes a processing module and a power supply module, wherein the power module includes at least two cascaded low-dropout linear regulators. Embodiments described herein provide a power supply device with higher PSRR.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 12, 2012
    Applicant: BEIJING KT MICRO, LTD.
    Inventors: Rongrong Bai, Jianting Wang, Duanduan Jian, Wenjing Wang, Jing Cao