Patents Examined by Ming Jung
  • Patent number: 9078258
    Abstract: A control point device that reduces delay in a power-saving wireless network includes a normal data generating unit that generates 1st-type data, a preferential data generating unit that generates 2nd-type data different from the 1st-type data, a determining unit that determines an active period length, a beacon generating unit that generates a broadcasting signal including information corresponding to the determined length of the active period, and a transmitting unit that transmits the broadcasting signal to the terminal on a frame basis. The determining unit shortens the length of the active period when the preferential data generating unit generates the 2nd-type data, and a preferential data period is set in an ex-active period obtained by the shortening of the active period, the preferential data period being a period during which the 2nd-type data is transmitted. The transmitting unit transmits the 2nd-type data to the terminal during the preferential data period.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: July 7, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yosuke Ukita, Hironori Nakae, Hiroshi Hayashino
  • Patent number: 7023883
    Abstract: The present invention relates to a method for providing synthesized clock synchronization reference signals in an asynchronous packet based network. Specifically, the present invention pertains to a method of using a timing reference signal as a synchronization reference for a synthesized signal of the same frequency for the purpose of providing synchronous analog communications, such as Voice Over Internet Protocol (VoIP). More specifically, the invention transmits reference signals in Ethernet packets which are then used by recipient devices to synthesize timing signals for synchronization purposes.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: April 4, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Albert S. Lui, David Haidong Fu, Uzoma Anozie