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: 20070248119
    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: May 15, 2007
    Publication date: October 25, 2007
    Inventors: Koji Takeguchi, Ryuichi Moriya, Nobuhiro Rikitake, Hideki Matsui, Hirotaka Morita
  • Patent number: 7252439
    Abstract: A blade-type optical transmission apparatus includes a plurality of main-signal blades, each of which is provided with an external optical signal interface unit, a cross-connect unit, and an internal optical signal interface unit, a blade enclosure in which the plurality of main-signal blades are enclosed, and a back plane which is situated inside the blade enclosure and provides a ring connection for the internal optical signal interface unit between the main-signal blades.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: August 7, 2007
    Assignee: Fujitsu Limited
    Inventors: Osamu Takeuchi, Hirotaka Morita
  • Patent number: 7239649
    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: Grant
    Filed: June 21, 2001
    Date of Patent: July 3, 2007
    Assignee: Fujitsu Limited
    Inventors: Koji Takeguchi, Ryuichi Moriya, Nobuhiro Rikitake, Hideki Matsui, Hirotaka Morita
  • Patent number: 7065504
    Abstract: Fee imposition system and method for application software, in which a software providing corporation can collect the fee without fail and charge a fair fee to a customer, and thereby the customer can use the application software with a paying method easy to estimate. The fee imposition system includes a server machine installed in a management center for managing the software, a client machine installed in a customer's office and connected with the server machine through a communication means, a ticket issue unit for issuing a ticket file on the basis of a predetermined fee schedule, and a data copy/writing unit for copying data corresponding to the information designated by the ticket file from a data source memory unit and recording the copied data on a data target memory unit.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: June 20, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Toshiyuki Sakuma, Haruhisa Nakamura, Masaki Honma, Yuichi Kaneko, Hirotaka Morita, Mitsuhiro Enomoto
  • Publication number: 20060129261
    Abstract: While a base model has been determined for a product, in a system for performing a configuration designing operation of the product by setting a specification value to a specification item of the product, a product configuration design aiding system aids that a configuration designer can easily perform the configuration designing operation while following a restriction condition of a specification value of a specification item. A specification configuration information database is constructed which describes restriction conditions available for the specification values with respect to the specification item, and a configuration designing screen for inputting the specification values with respect to the specification item is displayed so as to conduct an input by the configuration designer.
    Type: Application
    Filed: November 4, 2005
    Publication date: June 15, 2006
    Inventors: Hirotaka Morita, Shingo Akasaka, Atsuhiro Ishida, Hiroshi Sora
  • Patent number: 7053573
    Abstract: A motor drive apparatus which drives a motor by controlling conduction/non-conduction of a drive transistor for causing a current to flow through a drive coil of the motor based on a pulse signal indicating a relative position between the rotor and stator of the motor, generated by a position detector, and on a rotation speed setting voltage for setting the rotation speed of the motor. The apparatus comprises a control circuit that generates a pulse-delayed signal by delaying the pulse signal by delay time according to the voltage level of the rotation speed setting voltage.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 30, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takekiyo Okumura, Hirotaka Morita
  • Publication number: 20060085278
    Abstract: A renewal proposal support system that performs communication with a sales terminal device includes a configuration information storage unit for storing information on components of a product provided for a customer, a component information storage unit for storing the components, a configuration rule storage unit for storing information on advisability of combination between the components, and a control unit for performing processing on a change of one of the components. The control means refers to the configuration information storage unit, thereby displaying the components on the sales terminal device, and notifies an operator of the sales terminal device of other component that cannot be combined with the one of the components targeted for the change, upon receipt of a command for the change of the one of the components from the sales terminal device.
    Type: Application
    Filed: September 6, 2005
    Publication date: April 20, 2006
    Inventors: Atsushi Shimoda, Atsuhiro Ishida, Hirotaka Morita
  • Patent number: 7024121
    Abstract: Proposed is an optical clock distribution system in the WDM network, which particularly relates to a system to control clock synchronization between optical transmission devices constituting an optical communication network. The optical clock distribution system includes an optical clock generator converting a clock signal of PRC (Primary Reference Clock) level into an optical clock signal having a wavelength ?0; a wavelength multiplexer wavelength-multiplexing the optical clock signal having wavelength ?0 together with other optical wavelength data; and a wavelength-demultiplexer provided in a unit of the network, wavelength-demultiplexing the optical clock signal having wavelength ?0, wherein the other optical wavelength data are processed in the unit of the network using the wavelength-demultiplexed optical clock signal having wavelength ?0 as a reference clock.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: April 4, 2006
    Assignee: Fujitsu Limited
    Inventors: Nobuhiro Rikitake, Hirotaka Morita, Koji Takeguchi, Ryuichi Moriya, Hideki Matsui
  • Publication number: 20060064663
    Abstract: When carrying out placement and routing processing on a layout object circuit using circuit connectivity information and power supply information, a first step of specifying a power supply terminal corresponding to a signal terminal designated for input level fixation by the circuit connectivity information on the basis of terminal correspondence information, a second step of specifying a power supply voltage corresponding to the power supply terminal specified at the first step on the basis of the power supply information, and a third step of routing a power supply line of the power supply voltage specified at the second step to the signal terminal for input level fixation and thus connecting them, are carried out. Thus, connection processing to connect the signal terminal for input level fixation and the power supply line can be automatically carried out and a design period for a multi-power supply semiconductor integrated circuit can be reduced.
    Type: Application
    Filed: December 29, 2004
    Publication date: March 23, 2006
    Applicant: Fujitsu Limited
    Inventors: Hirotaka Morita, Shinji Fukasawa
  • Publication number: 20050168181
    Abstract: A motor drive apparatus which drives a motor by controlling conduction/non-conduction of a drive transistor for causing a current to flow through a drive coil of the motor based on a pulse signal indicating a relative position between the rotor and stator of the motor, generated by a position detector, and on a rotation speed setting voltage for setting the rotation speed of the motor. The apparatus comprises a control circuit that generates a pulse-delayed signal by delaying the pulse signal by delay time according to the voltage level of the rotation speed setting voltage.
    Type: Application
    Filed: January 28, 2005
    Publication date: August 4, 2005
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Takekiyo Okumura, Hirotaka Morita
  • Publication number: 20050168962
    Abstract: A blade-type optical transmission apparatus includes a plurality of main-signal blades, each of which is provided with an external optical signal interface unit, a cross-connect unit, and an internal optical signal interface unit, a blade enclosure in which the plurality of main-signal blades are enclosed, and a back plane which is situated inside the blade enclosure and provides a ring connection for the internal optical signal interface unit between the main-signal blades.
    Type: Application
    Filed: May 20, 2004
    Publication date: August 4, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Osamu Takeuchi, Hirotaka Morita
  • Publication number: 20050152349
    Abstract: A packet transmission system is disclosed. The system serves between terminal apparatuses that include a supervisory control circuit configured to transmit a supervisory signal in a direction opposite to the transmission direction of a main signal on each of and both of an upstream circuit and a downstream circuit. The packet transmission system transmits overhead information of a packet frame of the main signal of the upstream circuit and the downstream circuit using the supervisory control circuit of the downstream circuit and the upstream circuit, respectively.
    Type: Application
    Filed: January 18, 2005
    Publication date: July 14, 2005
    Inventors: Osamu Takeuchi, Yuuji Kamura, Hideaki Arao, Hirotaka Morita, Hiroyuki Ohgaki
  • Patent number: 6567422
    Abstract: A network synchronization controller and method for effectively preventing a timing loop from happening in a synchronous network. A clock status message controller, disposed in each network element on the network, produces and sends clock status messages which are each composed of clock quality data and synchronization control data. The clock quality data indicates the quality level of a clock signal that each network element supplies to its neighboring network elements. The synchronization control data contains information to be used to make the network synchronized with a single reference timing source. A clock selector chooses one of the clock signals received from other network elements, based on the clock status messages received along with the clock signals.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: May 20, 2003
    Assignee: Fujitsu Limited
    Inventors: Koji Takeguchi, Hirotaka Morita, Nobuhiro Rikitake, Ryuichi Moriya, Ken Mizukura
  • Publication number: 20030091057
    Abstract: In a method for transmitting data from a first node to a second node through an interlinking network including data transmission equipments: the data is transmitted from the first node to one of the data transmission equipments together with a first request for storage of the data in the one of the data transmission equipments; the data is stored in a storage unit provided in the one of the data transmission equipments in response to the first request; a second request for the data is transmitted from the second node to the one of the data transmission equipments; the data is read out from the storage unit in response to the second request; and the data is transmitted from the one of the data transmission equipments to the second node.
    Type: Application
    Filed: April 3, 2002
    Publication date: May 15, 2003
    Inventors: Takuya Miyashita, Chiyoko Komatsu, Yoshinobu Takagi, Hirotaka Morita
  • Publication number: 20030076857
    Abstract: Disclosed herein is a SONET/SDH transmitter provided in a transmission system in which a SONET/SDH network and an IP network are connected with optical LAN-IF. The SONET/SDH transmitter has a redundancy transmission line structure consisting of two transmission lines, a K-packet processing section, and a transmitting section. The K-packet processing section is used for generating a specific byte (SONET K1/K2 byte) of data representing transmission-line switching control information about the transmission lines, packetizing the generated data, and outputting a packet. The transmitting section is used for transmitting the packet to the transmitter provided opposite through the transmission lines. This SONET/SDH transmitter further has a redundancy line switching section.
    Type: Application
    Filed: March 26, 2002
    Publication date: April 24, 2003
    Inventors: Hirotaka Morita, Yoshinobu Takagi, Takuya Miyashita, Chiyoko Komatsu
  • Publication number: 20030059160
    Abstract: Proposed is an optical clock distribution system in the WDM network, which particularly relates to a system to control clock synchronization between optical transmission devices constituting an optical communication network. The optical clock distribution system includes an optical clock generator converting a clock signal of PRC (Primary Reference Clock) level into an optical clock signal having a wavelength &lgr;0; a wavelength multiplexer wavelength-multiplexing the optical clock signal having wavelength &lgr;0 together with other optical wavelength data; and a wavelength-demultiplexer provided in a unit of the network, wavelength-demultiplexing the optical clock signal having wavelength &lgr;0, wherein the other optical wavelength data are processed in the unit of the network using the wavelength-demultiplexed optical clock signal having wavelength &lgr;0 as a reference clock.
    Type: Application
    Filed: October 17, 2002
    Publication date: March 27, 2003
    Inventors: Nobuhiro Rikitake, Hirotaka Morita, Koji Takeguchi, Ryuichi Moriya, Hideki Matsui
  • Publication number: 20030055788
    Abstract: Fee imposition system and method for application software, in which a software providing corporation can collect the fee without fail and charge a fair fee to a customer, and thereby the customer can use the application software with a paying method easy to estimate. The fee imposition system includes a server machine installed in a management center for managing the software, a client machine installed in a customer's office and connected with the server machine through a communication means, a ticket issue unit for issuing a ticket file on the basis of a predetermined fee schedule, and a data copy/writing unit for copying data corresponding to the information designated by the ticket file from a data source memory unit and recording the copied data on a data target memory unit.
    Type: Application
    Filed: March 19, 2002
    Publication date: March 20, 2003
    Inventors: Toshiyuki Sakuma, Haruhisa Nakamura, Masaki Honma, Yuichi Kaneko, Hirotaka Morita, Mitsuhiro Enomoto
  • Publication number: 20030055789
    Abstract: Fee imposition system and method for application software, in which a software providing corporation can collect the fee without fail and charge a fair fee to a customer, and thereby the customer can use the application software with a paying method easy to estimate. The fee imposition system includes a server machine installed in a management center for managing the software, a client machine installed in a customer's office and connected with the server machine through a communication means, a ticket issue unit for issuing a ticket file on the basis of a predetermined fee schedule, and a data copy/writing unit for copying data corresponding to the information designated by the ticket file from a data source memory unit and recording the copied data on a data target memory unit.
    Type: Application
    Filed: July 30, 2002
    Publication date: March 20, 2003
    Applicant: HITACHI, LTD.
    Inventors: Toshiyuki Sakuma, Haruhisa Nakamura, Masaki Honma, Yuichi Kaneko, Hirotaka Morita, Mitsuhiro Enomoto
  • Patent number: 6498664
    Abstract: A wavelength division multiplexing transmission device includes a multiplexer part which multiplexes a plurality of first signals having a first bit rate and different wavelengths into a second signal having a second bit rate higher than the first bit rate and inserts wavelength data information concerning the different wavelengths into the second signal.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: December 24, 2002
    Assignee: Fujitsu Limited
    Inventor: Hirotaka Morita
  • Publication number: 20020101865
    Abstract: A transmission apparatus includes an input port part having a plurality of input ports, an output window part having a plurality of buffers, a switch part making connections between the plurality of input ports and the plurality of buffers, a selection control circuit controlling the switch part so that data from the plurality of input ports are stored in buffers that have available areas among the plurality of buffers in accordance with data storage states of the plurality of buffers, and a time division multiplexing part multiplexing the data read from the plurality of buffers in time division multiplexing for transmission.
    Type: Application
    Filed: July 13, 2001
    Publication date: August 1, 2002
    Inventors: Yoshinobu Takagi, Hirotaka Morita, Chiyoko Komatsu, Miyashita Takuya, Atsuki Taniguchi