Patents by Inventor Jinghua Ye

Jinghua Ye 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).

  • HEADPHONE AMPLIFIER CIRCUIT
    Publication number: 20110095829
    Abstract: A class G headphone amplifier circuit with improved power efficiency and low EMI. It may use an automatic signal level detector to detect the signal level of incoming signals and determine positive and negative power supplies for headphone amplifiers accordingly. A voltage generator may generate pairs of differential output voltages at a plurality of amplitude steps, and supply to headphone amplifiers the pair with the amplitude determined by the automatic signal level detector. As a result, headphone amplifiers are biased according to the input signal level, and the multiple voltage rails may improve power efficiency and avoid clipping.
    Type: Application
    Filed: January 3, 2011
    Publication date: April 28, 2011
    Applicant: ANALOG DEVICES, INC.
    Inventors: Jinghua YE, Hui SHEN, Danny LI
  • Headphone amplifier circuit
    Patent number: 7880548
    Abstract: A class G headphone amplifier circuit with improved power efficiency and low EMI. It may use an automatic signal level detector to detect the signal level of incoming signals and determine positive and negative power supplies for headphone amplifiers accordingly. A voltage generator may generate pairs of differential output voltages at a plurality of amplitude steps, and supply to headphone amplifiers the pair with the amplitude determined by the automatic signal level detector. As a result, headphone amplifiers are biased according to the input signal level, and the multiple voltage rails may improve power efficiency and avoid clipping.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: February 1, 2011
    Assignee: Analog Devices, Inc.
    Inventors: Jinghua Ye, Hui Shen, Danny Li
  • Headphone Amplifier Circuit
    Publication number: 20100097148
    Abstract: A class G headphone amplifier circuit with improved power efficiency and low EMI. It may use an automatic signal level detector to detect the signal level of incoming signals and determine positive and negative power supplies for headphone amplifiers accordingly. A voltage generator may generate pairs of differential output voltages at a plurality of amplitude steps, and supply to headphone amplifiers the pair with the amplitude determined by the automatic signal level detector. As a result, headphone amplifiers are biased according to the input signal level, and the multiple voltage rails may improve power efficiency and avoid clipping.
    Type: Application
    Filed: October 21, 2008
    Publication date: April 22, 2010
    Applicant: ANALOG DEVICES, INC.
    Inventors: Jinghua Ye, Hui Shen, Danny Li