Patents by Inventor Hirotaka Morita

Hirotaka Morita 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: 20020089996
    Abstract: A communication node comprises a backplane transmission circuit capable of accomplishing transmission of a signal between communication units installed in a plurality of slots and a signal waveform control unit for controlling a waveform of the signal in accordance with a transmission distance of the signal between the communication units in the backplane transmission circuit. This arrangement achieves stable fast backplane transmission of a main signal without increasing the degree of parallelism for the main signal, thus realizing a high-extensibility small-sized communication node capable of dealing with as a very-high large-capacity bit rate as 40 Gbps, 160 Gbps or a bit rate exceeding these values.
    Type: Application
    Filed: March 28, 2001
    Publication date: July 11, 2002
    Inventors: Chiyoko Komatsu, Yoshinobu Takagi, Hirotaka Morita
  • Publication number: 20020018261
    Abstract: In order to increase the efficiency of large-capacity transmission, the continuity of divided signals generated by dividing a multiplexed signal is maintained and the original large-capacity multiplexed signal is restored. A signal dividing section divides a multiplexed signal to generate a plurality of divided signals in the STS or STM transmission interface format. A guarantee information adding section adds guarantee information for guaranteeing the continuity of the divided signals to each of the divided signals to generate transmission signals. A signal sending section sends the transmission signals via a transmission line in the transmission interface format. A signal receiving section receives the transmission signals. A signal restoring section restores the multiplexed signal by constructing the divided signals on the basis of the guarantee information.
    Type: Application
    Filed: June 21, 2001
    Publication date: February 14, 2002
    Inventors: Koji Takeguchi, Ryuichi Moriya, Nobuhiro Rikitake, Kideki Matsui, Hirotaka Morita
  • Publication number: 20020012318
    Abstract: In a mesh-type network, a managing section manages QoS (Quality of Service) information, which is accumulated QoS information (inter-neighboring-node QoS information q) between neighboring node apparatuses, about QoS for candidate signal transmission routes in the network at the individual node apparatuses. And a control section controls a signal transmission route selection operation at the self node apparatus based on the network QoS information Q being managed by the managing section. With this construction, it is possible to set/manage a line route satisfying a desired QoS independently at the individual node apparatuses with maximum ease and flexibleness.
    Type: Application
    Filed: March 2, 2001
    Publication date: January 31, 2002
    Inventors: Ryuichi Moriya, Hideki Matsui, Koji Takeguchi, Nobuhiro Rikitake, Hirotaka Morita
  • Patent number: 6317699
    Abstract: A calibrating device is composed of a movable portion having a degree of freedom movable in three axis directions orthogonal to each other, a displacement detector for detecting displacement of said movable portion as per degree of freedom, a universal joint having a three-axis rotating degree of freedom, which is attached to the tip end portion of said movable portion, a fixture attached to a free end of the universal joint, which is capable of being easily connected to the tip end portion of the wrist of the robot. The calibrating device measures displacement of the wrist tip end portion. That is, the invention provides a comparatively simple calibrating device and a calibrating method, in which automation is easy without requiring any complicated operations, using the calibrating device.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: November 13, 2001
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Shinsuke Watanabe, Yasuyuki Inoue, Hirotaka Morita, Hideo Nagata, Youichi Tanaka
  • Patent number: 6212443
    Abstract: A direct teaching apparatus which allows an operator to perform the direct teaching of a robot in safety. The apparatus includes a force detector and a teaching tool. The tool includes a working tool or handle fixed to the first detector and held by the operator to lead the robot. It also includes a device for computing the position or speed directive based on the force detector data and a motion model. It further includes a device for computing the generation torque of a motor for driving a robot depending on the position or speed directive and a controller to control the generated torque.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: April 3, 2001
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Hideo Nagata, Youichi Tanaka, Yasuyuki Inoue, Hirotaka Morita