Patents by Inventor Ding Lu

Ding Lu 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: 20080198153
    Abstract: A method and system for reading data from a link buffer for output to a display device. A link buffer read period is determined which balances a write throughput over a source video frame time and a read throughput over a display frame time. A threshold is determined indicating a required number of pixels stored in a link buffer prior to starting to read data out of the link buffer for a next line display. A read signal is issued when the link buffer read period ends and the threshold is reached.
    Type: Application
    Filed: February 15, 2007
    Publication date: August 21, 2008
    Inventors: Qing Yu, Ding Lu
  • Patent number: 5627737
    Abstract: A power inverter for use in the system interconnection of a direct-current supply with a commercial alternating-current supply includes an inverter circuit and a filter circuit. Feedback signals affecting the frequency of an output to be produced by the inverter circuit are taken from the filter circuit having frequency response characteristics such that the phase angle is reduced to 0.degree. at three frequencies consisting of a higher frequency, lower frequency and commercial frequency, the last of which lies halfway between the first and second. Under the normal condition, the frequency of the output produced by the inverter circuit is equal to the commercial frequency. In the event of a power failure or power cut in the commercial alternating-current supply system, deviation from the commercial frequency is caused by the characteristics of the filter circuit.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: May 6, 1997
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masahiro Maekawa, Yasuhiro Makino, Etsuko Yamamoto, Masaki Yugo, Wataru Horio, Takehito Ike, Ding Lu