Patents by Inventor Hajime Imazeki

Hajime Imazeki 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).

  • Signal analyzing apparatus
    Patent number: 8074127
    Abstract: The present invention is to provide a signal analyzing apparatus which can easily identify a pattern high in error rate and a pattern causing bit errors in comparison with the conventional device.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: December 6, 2011
    Assignee: Anritsu Corporation
    Inventors: Takeshi Wada, Hajime Imazeki, Takashi Miyamoto
  • SIGNAL ANALYZING APPARATUS
    Publication number: 20110050705
    Abstract: The present invention is to provide a signal analyzing apparatus which can easily identify a pattern high in error rate and a pattern causing bit errors in comparison with the conventional device.
    Type: Application
    Filed: March 29, 2007
    Publication date: March 3, 2011
    Applicant: ANRITSU CORPORATION
    Inventors: Takeshi Wada, Hajime Imazeki, Takashi Miyamoto
  • Transmission state indicating system indicating pointer values for evaluating transmission state of communication network having a plurality of channels at the same time corresponding to the respective channels
    Patent number: 7619978
    Abstract: High capacity data is divided into the plurality of low capacity virtual containers and transmitted via the plurality of channels which configure a communication network based on clocks at the respective channels. A multiplexed frame acquiring unit acquires a multiplexed frame in which mapping, accompanying delay absorption processings corresponding to transmission states at respective channels, has been carried out based on a reference clock with respect to the virtual containers at the respective channels included in a plurality of frames including the plurality of low capacity virtual containers.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: November 17, 2009
    Assignee: Anritsu Corporation
    Inventor: Hajime Imazeki
  • OTU frame data generating apparatus and method in which multiframe structured data to be inserted into overhead portion can be easily edited
    Patent number: 7424037
    Abstract: An overhead data generating unit stores and generates the non-multiframe structured data and the multiframe structured data to be inserted into the overhead portion of an OTU frame. The overhead data generating unit includes a memory which stores the multiframe structured data corresponding to sequence numbers in each multiframe unit of 256 frames (or the number of frames of ½ or ¼ thereof) from 0 to 255 which are needed for completing a set of meaningful data for each predetermined data item. An editing unit reads at least the multiframe structured data corresponding to the sequence numbers, and causes to list-display each multiframe in order of the sequence numbers to a display unit, and carries out editing processing in each multiframe unit with respect to the multiframe structured data in accordance with an arbitrary setting by an operating unit.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: September 9, 2008
    Assignee: Anritsu Corporation
    Inventors: Hajime Imazeki, Koichi Kibe
  • OTU frame data generating apparatus and method in which multiframe structured data to be inserted into overhead portion can be easily edited
    Publication number: 20050013296
    Abstract: An overhead data generating unit stores and generates the non-multiframe structured data and the multiframe structured data to be inserted into the overhead portion of an OTU frame. The overhead data generating unit includes a memory which stores the multiframe structured data corresponding to sequence numbers in each multiframe unit of 256 frames (or the number of frames of ½ or ¼ thereof) from 0 to 255 which are needed for completing a set of meaningful data for each predetermined data item. An editing unit reads at least the multiframe structured data corresponding to the sequence numbers, and causes to list-display each multiframe in order of the sequence numbers to a display unit, and carries out editing processing in each multiframe unit with respect to the multiframe structured data in accordance with an arbitrary setting by an operating unit.
    Type: Application
    Filed: July 7, 2004
    Publication date: January 20, 2005
    Applicant: Anritsu Corporation
    Inventors: Hajime Imazeki, Koichi Kibe
  • Transmission state indicating system indicating pointer values for evaluating transmission state of communication network having a plurality of channels at the same time corresponding to the respective channels
    Publication number: 20040190561
    Abstract: High capacity data is divided into the plurality of low capacity virtual containers and transmitted via the plurality of channels which configure a communication network based on clocks at the respective channels. A multiplexed frame acquiring unit acquires a multiplexed frame in which mapping, accompanying delay absorption processings corresponding to transmission states at respective channels, has been carried out based on a reference clock with respect to the virtual containers at the respective channels included in a plurality of frames including the plurality of low capacity virtual containers.
    Type: Application
    Filed: March 22, 2004
    Publication date: September 30, 2004
    Applicant: Anritsu Corporation
    Inventor: Hajime Imazeki