Patents by Inventor Koji Akita

Koji Akita 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: 20150065042
    Abstract: According to one embodiment, a communication apparatus includes a communication unit that establishes at least one proximity wireless connection with a communication partner apparatus. The communication apparatus includes a connection monitoring unit that monitors the communication unit and detect establishment of the wireless connection. The communication apparatus includes an execution control unit that identifies an establishment history of a plurality of the wireless connections based on a result of monitoring by the connection monitoring unit and, based on the establishment history, controls a process execution unit that executes at least one process.
    Type: Application
    Filed: August 25, 2014
    Publication date: March 5, 2015
    Inventors: Koji AKITA, Hiroyasu UCHIDA, Takayoshi ITO
  • Publication number: 20150065050
    Abstract: A wireless communication system has a first communication apparatus and a second communication apparatus. The first communication apparatus has an information generator to generate first information associated with a mobile terminal, an encoder to encode the first information, and a first wireless communication module to transmit the encoded first information to the mobile terminal by close range wireless communication. The second communication apparatus has a second wireless communication module to receive the encoded first information transmitted by the mobile terminal and second information, a decoder to decode the encoded first information, a verification module to verify validity of the first information, and an information processing module to process the second information received by the second wireless communication module when the validity is confirmed by the verification module.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 5, 2015
    Inventors: Takayoshi ITO, Ariyuki KISHIMOTO, Koji AKITA
  • Publication number: 20150063511
    Abstract: According to one embodiment, a transmitting device includes a wireless transmitting unit which wirelessly transmits data. The transmitting device includes a wireless receiving unit which receives the data wirelessly transmitted by the wireless transmitting unit. The transmitting device includes a synchronization signal outputting unit which outputs a synchronization signal to a signal transmitting medium of an electric conductor. The transmitting device includes a synchronization outputting unit which receives the synchronization signal from the signal transmitting medium and outputs a signal including the data received by the wireless receiving unit according to the synchronization signal.
    Type: Application
    Filed: August 21, 2014
    Publication date: March 5, 2015
    Inventors: Koji AKITA, Takayoshi ITO, Koichiro BAN, Takeshi TOMIZAWA
  • Patent number: 8971427
    Abstract: According to one embodiment, a wireless transceiver system includes a transmitter and a receiver. The transmitter includes a first generator, a second generator, a third generator. The second generator generates fixed data item that has bit values corresponding to the clock signal. The third generator performs OFDM modulation for the fixed data item. The receiver includes a first detector, a second detector, a PLL, a controller. The first detector is configured to detect an envelope that indicates amplitude in a time waveform. The controller is configured to control to operate the PLL from a first time point when the head part is detected to a second time point when a first period is elapsed.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: March 3, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Koji Akita, Takahiro Sekiguchi, Toshiyuki Nakanishi
  • Patent number: 8947091
    Abstract: According to one embodiment, an MRI apparatus includes a probe unit and a control/imaging unit. The probe unit includes a probe, a converter, a compressor and a transmitter. The control/imaging unit includes a receiver, an expander and a reconstructor. The probe detects an RF echo signal generated in a subject by a magnetic resonance phenomenon. The converter digitizes the detected signal. The compressor compresses the digitized signal in accordance with a predetermined compression parameter to obtain a compressed signal. The transmitter generates a transmission signal to wirelessly transmit the compressed echo signal and sends the transmission signal to a radio channel. The receiver receives the transmission signal and extracts the compressed signal from the received signal. The expander expands the extracted compressed signal in accordance with the parameter to obtain the RF echo signal. The reconstructor generates a video signal regarding the subject on the basis of the obtained signal.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: February 3, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Toshiyuki Nakanishi, Koji Akita, Takahiro Sekiguchi, Kazuya Okamoto, Sojuro Kato
  • Patent number: 8891664
    Abstract: The transmitter includes a first bit generator, a modulator, a second bit generator and a bit converter. The first bit generator generates bits to be transmitted based on the first wireless scheme. The modulator for the first wireless scheme performs at least amplitude modulation of a multiple level on the bits generated by the first bit generator. The second bit generator generates a bit to be transmitted based on the second wireless scheme. The bit converter converts the bit generated by the second bit generator and inputs converted bits to the modulator wherein the bit converter converts the bit generated by the second bit generator so that a signal showing High in the second wireless scheme is modulated to amplitude of a high level in the multiple level in the modulator.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: November 18, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tsuyoshi Kogawa, Koji Akita, Koji Ogura, Takafumi Sakamoto
  • Patent number: 8885767
    Abstract: A transmitter includes first generator to generate pilot source signal by modulating pilot sequence, second generator to generate data source signal with time length longer than that of pilot source signal by modulating data sequence, first cyclic shifter to perform cyclic shift of first shift amount to pilot source signal to generate first pilot signal, second cyclic shifter to performs cyclic shift of second shift amount to data source signal to generate first data signal, third cyclic shifter to perform cyclic shift of third shift amount to pilot source signal to generate second pilot signal, fourth cyclic shifter to perform cyclic shift of fourth shift amount to data source signal to generate second data signal, first transmit antenna to transmit first pilot signal and first data signal, and second transmit antenna to transmit second pilot signal and second data signal.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: November 11, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ren Sakata, Koji Akita
  • Patent number: 8874048
    Abstract: According to one embodiment, a wireless device includes a board, a semiconductor chip, a radiation element, a sealing resin, a conductive layer, and a first conductive wall. The semiconductor chip is mounted on the board and includes a transmission/reception circuit. The radiation element is formed on the board. The sealing resin seals the semiconductor chip. The conductive layer covers at least a portion of a surface of the sealing resin. The first conductive wall is provided between the semiconductor chip and the radiation element and is connected to the conductive layer.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: October 28, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yukako Tsutsumi, Koh Hashimoto, Takayoshi Ito, Koji Akita, Keiju Yamada
  • Publication number: 20140301189
    Abstract: An information providing apparatus has a first communication part to perform communication with a communication apparatus, a main-information storage to store main information to be transmitted to the communication apparatus via the first communication part, a sub-information acquisition part to acquire sub-information reproducible separately from the main information and related to the main information, and a communication controller to control so that the main information and the corresponding sub-information is transmitted from the first communication part to the communication apparatus, when a transmission request for the main information is acquired from the communication apparatus.
    Type: Application
    Filed: March 6, 2014
    Publication date: October 9, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Seiichiro Horikawa, Takayoshi Ito, Koji Akita
  • Publication number: 20140297788
    Abstract: Apparatus for content distribution includes a distribution processor configured to distribute first data to a terminal of a visitor at a first site of an event, the first data comprising first information regarding a content related to the event and a content distribution processor configured to distribute, at a second site other than the first site, the content to the terminal when second data is determined as valid in relation to the first data by the content distribution processor, the second data originating from the terminal and comprising second information.
    Type: Application
    Filed: December 10, 2013
    Publication date: October 2, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takayoshi Ito, Seiichiro Horikawa, Koji Akita
  • Publication number: 20140246778
    Abstract: According to one embodiment, a semiconductor device includes a substrate, a first semiconductor chip, a second semiconductor chip, and a discrete element part. The first semiconductor chip is arranged on the substrate and includes a first electrode group. The second semiconductor chip is arranged on the substrate and includes a second electrode group, at least one of electrodes included in the second electrode group being connected to at least one of electrodes included in the first electrode group via at least one bonding wire. The discrete element part is arranged on the substrate and under the at least one bonding wire.
    Type: Application
    Filed: February 20, 2014
    Publication date: September 4, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hidenori OKUNI, Yukako TSUTSUMI, Koji AKITA
  • Publication number: 20140246787
    Abstract: According to one embodiment, a semiconductor apparatus includes a substrate, a first semiconductor chip, a second semiconductor chip and a first converter. The first semiconductor chip includes a first surface and a second surface and is mounted on the substrate, the first surface is opposed to the substrate, the second surface is opposed to the first surface. The second semiconductor chip includes a first area and is stacked on the second surface. The first converter is arranged in the first area, the first converter is configured to perform at least one of analog-to-digital conversion and digital-to-analog conversion and arranged in the first area. A part of the first area does not overlap the first semiconductor chip when viewed from a direction perpendicular to the second surface.
    Type: Application
    Filed: November 27, 2013
    Publication date: September 4, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yukako TSUTSUMI, Hidenori OKUNI, Koji AKITA
  • Publication number: 20140204753
    Abstract: A wireless communication device has a first wireless communication unit capable of performing wireless communication within a first communication distance, a second wireless communication unit capable of performing wireless communication within a second communication distance greater than the first communication distance, and a controller configured to assign at least a part of the wireless communication performed by the second wireless communication unit to the first wireless communication unit instead of the second wireless communication unit, based on a communication history of the second wireless communication unit stored after the wireless communication using the first wireless communication unit becomes available.
    Type: Application
    Filed: December 30, 2013
    Publication date: July 24, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koji AKITA, Tsuyoshi KOGAWA, Takayoshi ITO, Seiichiro HORIKAWA
  • Patent number: 8761678
    Abstract: A radio transmitting apparatus includes a storage unit configured to store a plurality of weight sequence sets, which are each assigned to a plurality of transmission blocks sectioned by time axes and frequency axes, by associating the plurality of weight sequence sets with the plurality of transmission blocks, a first selecting unit configured to select one transmission block from the plurality of transmission blocks, a second selecting unit configured to select one weight sequence from one weight sequence set assigned to the one transmission block signal, a converting unit configured to convert a data signal by using the one weight sequence to generate a converted signal, and a transmitting unit configured to transmit the converted signal by using the one transmission block.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: June 24, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Akita, Noritaka Deguchi, Ren Sakata, Koichiro Ban
  • Publication number: 20140170980
    Abstract: A stationary proximity wireless communication apparatus has an electromagnetic-wave transmitting and receiving part comprising a first indicator that indicates a zone to place a portable proximity wireless communication apparatus and an antenna that is installed in the zone to emit electromagnetic waves having directivity in a direction of a recommended optimum position suitable to place the portable proximity wireless communication apparatus in the zone from a position different from the recommended optimum position, and a wireless communication part configured to perform modulation and demodulation processes of electromagnetic waves transmitted and received at the antenna.
    Type: Application
    Filed: November 6, 2013
    Publication date: June 19, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koji OGURA, Koji AKITA, Yukako TSUTSUMI, Takayoshi ITO
  • Patent number: 8744514
    Abstract: A wireless communication device has a first wireless communication unit configured to wirelessly communicate with an external network, a management information storage configured to store application management information received through the first wireless communication unit, a second wireless communication unit configured to wirelessly communicate with an external communication device, and a management unit configured to control, based on the application management information stored in the management information storage, information wirelessly transmitted and received between the second wireless communication unit and the external communication device.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: June 3, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayoshi Ito, Koji Akita, Makoto Kamoi
  • Patent number: 8704522
    Abstract: In one embodiment, an MRI apparatus includes first and second clock generators, a pulse generator, transmission and reception coils, pulse and phase detectors, and a corrector. The pulse generator generates an excitation pulse signal based on a clock signal generated by the first clock generator. The reception coil outputs a radio frequency signals corresponding to an excitation pulse transmitted from the transmission coil or an MR echo. The converter digitizes, synchronously with a clock signal generated by the second clock generator, the radio frequency signal, to obtain radio frequency data. The pulse detector detects excitation pulse data corresponding to the excitation pulse from the radio frequency data. The phase detector detects a phase of a pulse indicated by the detected excitation pulse data. The corrector corrects the radio frequency data based on the detected phase, to compensate for a phase offset which occurs in the echo during the digitization.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: April 22, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Koji Akita, Takahiro Sekiguchi, Toshiyuki Nakanishi, Kazuya Okamoto, Sojuro Kato
  • Publication number: 20140073247
    Abstract: A mobile wireless device has a first communication unit configured to perform proximity wireless communication with a communication device, a certification unit configured to perform a certification process between the mobile wireless device and the communication device via the proximity wireless communication using the first communication unit, a second communication unit configured to perform proximity wireless communication with an extra mobile wireless device, and an operation controller configured to control the extra mobile wireless device via the proximity wireless communication using the second communication unit, after the certification process is normally completed.
    Type: Application
    Filed: March 4, 2013
    Publication date: March 13, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koji AKITA, Ariyuki KISHIMOTO, Shinichi WARAGAI, Ryoko MATSUO, Takayoshi ITO, Makoto KAMOI, Masashi SUZUKI
  • Publication number: 20140073248
    Abstract: A mobile wireless device has a power receiver configured to wirelessly receive power, a first communication unit configured to sequentially perform information transmission, waiting operation, information reception, and internal processing for a certification process, by using the received power, a second communication unit configured to perform wireless communication for data communication during the certification process, by using the received power, and a communication controller configured to control performing the data communication by the second communication unit within a period after the first communication unit starts information transmission for the certification process until the first communication unit completes information reception for the certification process.
    Type: Application
    Filed: March 4, 2013
    Publication date: March 13, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koji AKITA, Mitsuaki SATSUKAWA, Takayoshi ITO
  • Publication number: 20140062657
    Abstract: According to one embodiment, when a control unit is notified of information in at least one second signal received by one of first and second wireless communication units after the control unit provides the second wireless communication unit with a command to transmit a first signal containing first address information and before a waiting time elapses and when the at least one second signal contains second address information assigned to an authentication apparatus having received the first signal, then the control unit provides the first wireless communication unit with a command to transmit a third signal for a connection request with the second address information set in a destination address.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 6, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoko ADACHI, Seiichiro HORIKAWA, Koji AKITA, Ryoko MATSUO