Patents by Inventor Naohiro Matsushita
Naohiro Matsushita 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: 20230367981Abstract: A reader apparatus includes a transmission circuit, a cancellation circuit, and a decoding circuit. The transmission circuit is configured to transmit a query wave that is obtained by modulating a carrier wave with a modulation signal representing a command to be transmitted to a first responder. The cancellation circuit is configured to cancel a modulation component corresponding to the modulation signal from a response wave transmitted using a backscattering method from a second responder different from the first responder. The decoding circuit is configured to decode data represented by the response wave from which the modulation component is canceled by the cancellation circuit.Type: ApplicationFiled: November 21, 2022Publication date: November 16, 2023Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Naohiro MATSUSHITA, Sadatoshi OISHI
-
Patent number: 11695446Abstract: According to an embodiment, a communication apparatus creates a prediction model taking into consideration of the actual fluctuation of a self-interference signal. The communication apparatus selects, where the self-interference signal has largely fluctuated, a prediction model in accordance with a fluctuation pattern at an early stage of the fluctuation. The communication apparatus generates a cancel signal by control applying a gain and an amount of phase shift represented by the prediction model.Type: GrantFiled: February 16, 2022Date of Patent: July 4, 2023Assignee: Toshiba Tec Kabushiki KaishaInventor: Naohiro Matsushita
-
Publication number: 20230137527Abstract: A communication device according to an embodiment includes a first generator, a second generator, a signal sharer, a combiner, a first measurement circuit, a second measurement circuit, a first control circuit, a second control circuit, and a third control circuit. The first and second measurement circuits measure levels of self-jammer signals, respectively. Each of the self-jammer signals is extracted in corresponding one of a first bandwidth and a second bandwidth larger than the first bandwidth from a signal output from the combiner. The first control circuit sets change values of an amplitude and a phase in the second generator during a period of a first time width. The second control circuit sets change values of the amplitude and the phase in the second generator. The third control circuit causes the first control unit to set the change values of the amplitude and the phase in the second generator.Type: ApplicationFiled: August 15, 2022Publication date: May 4, 2023Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventor: Naohiro MATSUSHITA
-
Publication number: 20220416839Abstract: According to an embodiment, a communication apparatus creates a prediction model taking into consideration of the actual fluctuation of a self-interference signal. The communication apparatus selects, where the self-interference signal has largely fluctuated, a prediction model in accordance with a fluctuation pattern at an early stage of the fluctuation. The communication apparatus generates a cancel signal by control applying a gain and an amount of phase shift represented by the prediction model.Type: ApplicationFiled: February 16, 2022Publication date: December 29, 2022Inventor: Naohiro MATSUSHITA
-
Patent number: 11196886Abstract: An image processing device includes a printing unit printing an image on a sheet including first and second tags. The first and second tags have first and second antennas extending along first and second directions. The device further includes a tag reading unit including a third antenna and configured to transmit, towards the sheet from the third antenna, first radio waves polarized in the first direction and second radio waves polarized in the second direction in each of a first period during which the sheet is conveyed towards the third antenna and a second period during which the sheet is conveyed away from the third antenna, and determine an orientation of the sheet based on intensities of third radio waves polarized in the first direction and fourth radio waves polarized in the second direction, which have been received by the third antenna in each of the first and second periods.Type: GrantFiled: December 23, 2020Date of Patent: December 7, 2021Assignee: TOSHIBA TEC KABUSHIKI KAISHAInventor: Naohiro Matsushita
-
Publication number: 20210234982Abstract: An image processing device includes a printing unit printing an image on a sheet including first and second tags. The first and second tags have first and second antennas extending along first and second directions. The device further includes a tag reading unit including a third antenna and configured to transmit, towards the sheet from the third antenna, first radio waves polarized in the first direction and second radio waves polarized in the second direction in each of a first period during which the sheet is conveyed towards the third antenna and a second period during which the sheet is conveyed away from the third antenna, and determine an orientation of the sheet based on intensities of third radio waves polarized in the first direction and fourth radio waves polarized in the second direction, which have been received by the third antenna in each of the first and second periods.Type: ApplicationFiled: December 23, 2020Publication date: July 29, 2021Inventor: Naohiro MATSUSHITA
-
Publication number: 20190171922Abstract: According to one embodiment, an RFID tag includes a plurality of antenna elements, a switch, and a control circuit. The switch is inserted between the plurality of antenna elements. The control circuit turns off the switch until a specified time elapsed after responding to radio waves from a reader device.Type: ApplicationFiled: November 27, 2018Publication date: June 6, 2019Inventor: Naohiro Matsushita
-
Publication number: 20180349655Abstract: A wireless communication apparatus, which communicates wirelessly with a host terminal, includes a power supply circuit, a communication circuit, a wireless tag, and a control circuit. The power supply circuit includes a battery. The communication circuit outputs a carrier wave to the host terminal using electric power of the battery, and performs wireless communication with the host terminal. The wireless tag is a passive-type wireless tag which is activated by the carrier wave which is output from the host terminal, and performs the wireless communication with the host terminal. The control circuit switches from a sleep state, where the electric power from the battery is not supplied to the communication circuit, to an activated state where the electric power from the battery is supplied to the communication circuit, if the wireless tag is activated.Type: ApplicationFiled: May 14, 2018Publication date: December 6, 2018Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Sunao TSUCHIDA, Naohiro MATSUSHITA
-
Publication number: 20180335338Abstract: A reader device includes a reception unit and a control unit. The reception unit receives sensor data transmitted from a sensor device. The control unit detects an abnormal sound from input sound data. When the control unit detects the abnormal sound, the control unit detects the sensor data including vibration data indicating a correlation with the sound data from which the abnormal sound is detected among the sensor data received by the reception unit. The control unit estimates a three-dimensional position of the sensor device of a transmission source of the detected sensor data.Type: ApplicationFiled: April 30, 2018Publication date: November 22, 2018Applicant: Toshiba Tec Kabushiki KaishaInventor: Naohiro MATSUSHITA
-
Patent number: 9771316Abstract: The invention provides a compound having a selective inhibitory activity against highly-expressed LAT-1 in tumor cell. The compound is represented by the formula (I): wherein each symbol is as defined in the specification, or a salt thereof, and a LAT-1 inhibitor comprising the same.Type: GrantFiled: January 21, 2014Date of Patent: September 26, 2017Assignees: Osaka University, KNC Laboratories Co., Ltd.Inventors: Yoshikatsu Kanai, Shushi Nagamori, Yoshihiko Kitaura, Masahiro Neya, Naohiro Matsushita
-
Patent number: 9402115Abstract: Generally, in accordance with one embodiment, a monitoring system comprises a sensor, a wireless tag, a reader and a notification apparatus. The sensor is correspondingly arranged in a structure. The wireless tag is a passive wireless tag which is correspondingly arranged in the structure to send identification information and measurement information of the sensor by using received electromagnetic wave as a drive source. The reader communicates with the wireless tag to acquire the identification information and the measurement information. The notification apparatus acquires the identification information and the measurement information from the reader, detects a wireless tag or a structure serving as a notification target based on the identification information and the measurement information, and notifies the notification target.Type: GrantFiled: March 17, 2014Date of Patent: July 26, 2016Assignee: TOSHIBA TEC KABUSHIKI KAISHAInventors: Naohiro Matsushita, Shinji Saegusa, Hiroshi Hashidume
-
Publication number: 20150336876Abstract: The invention provides a compound having a selective inhibitory activity against highly-expressed LAT-1 in tumor cell. The compound is represented by the formula (I): wherein each symbol is as defined in the specification, or a salt thereof, and a LAT-1 inhibitor comprising the same.Type: ApplicationFiled: January 21, 2014Publication date: November 26, 2015Inventors: Yoshikatsu KANAI, Shushi NAGAMORI, Yoshihiko KITAURA, Masahiro NEYA, Naohiro MATSUSHITA
-
Publication number: 20150061838Abstract: Generally, in accordance with one embodiment, a monitoring system comprises a sensor, a wireless tag, a reader and a notification apparatus. The sensor is correspondingly arranged in a structure. The wireless tag is a passive wireless tag which is correspondingly arranged in the structure to send identification information and measurement information of the sensor by using received electromagnetic wave as a drive source. The reader communicates with the wireless tag to acquire the identification information and the measurement information. The notification apparatus acquires the identification information and the measurement information from the reader, detects a wireless tag or a structure serving as a notification target based on the identification information and the measurement information, and notifies the notification target.Type: ApplicationFiled: March 17, 2014Publication date: March 5, 2015Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Naohiro Matsushita, Shinji Saegusa, Hiroshi Hashidume
-
Patent number: 8436782Abstract: A communication antenna device for use in radio communication between a moving body and an access point comprises an antenna main body for transmitting and receiving a signal, a base side member of the moving body for supporting the antenna main body, and a damping mechanism provided between the base side member and the antenna main body and suppressing high frequency vibration of the antenna main body that has an impact on the radio communication. The damping mechanism includes an elastic member for absorbing high frequency vibration that has an impact on the radio communication. The elastic member has such characteristics as absorbing high frequency vibration of the antenna main body that makes changes in amplitude or frequency of a transmission signal from the antenna main body to the extent of inducing a demodulation error when the transmission signal is received at an antenna of the other party.Type: GrantFiled: February 5, 2009Date of Patent: May 7, 2013Assignee: Toshiba Tec Kabushiki KaishaInventors: Tomonori Sugiyama, Naohiro Matsushita, Masakazu Kato, Sadatoshi Oishi, Jun Yaginuma, Sunao Tsuchida
-
Patent number: 8078214Abstract: A wireless communication system which includes a wireless base station; a plurality of leaky transmission lines that function as antennas of the wireless base station; and a selector for selecting each of the leaky transmission lines and thereby connecting the leaky transmission lines to the wireless base station, wherein only one leaky transmission line is selected and connected at any given time. The selector may select all of the leaky transmission lines cyclically, one at any given time. Alternatively, the selector may select one of the leaky transmission lines according to a control signal from a selection controller.Type: GrantFiled: July 10, 2008Date of Patent: December 13, 2011Assignee: Toshiba Tec Kabushiki KaishaInventors: Jun Yaginuma, Naohiro Matsushita, Tomonori Sugiyama
-
Publication number: 20110156985Abstract: A communication antenna device for use in radio communication between a moving body and an access point comprises an antenna main body for transmitting and receiving a signal, a base side member of the moving body for supporting the antenna main body, and a damping mechanism provided between the base side member and the antenna main body and suppressing high frequency vibration of the antenna main body that has an impact on the radio communication. The damping mechanism includes an elastic member for absorbing high frequency vibration that has an impact on the radio communication. The elastic member has such characteristics as absorbing high frequency vibration of the antenna main body that makes changes in amplitude or frequency of a transmission signal from the antenna main body to the extent of inducing a demodulation error when the transmission signal is received at an antenna of the other party.Type: ApplicationFiled: February 5, 2009Publication date: June 30, 2011Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Tomonori Sugiyama, Naohiro Matsushita, Masakazu Kato, Sadatoshi Oishi, Jun Yaginuma, Sunao Tsuchida
-
Publication number: 20100288837Abstract: According to one embodiment, a RFID tag reading/processing apparatus includes a reading device which reads data of the RFID tag, and transmits a radio wave from the antenna to the front to rear side of the container of the moving object, while the opening/closing door is being closed, and a checkout device which checks out for the merchandise based on the RFID tag data read by the reading device.Type: ApplicationFiled: May 12, 2010Publication date: November 18, 2010Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Takashi TOMIYAMA, Naohiro MATSUSHITA, Takafumi FUKUSHIMA, Tomonari KAKINO
-
Publication number: 20090186649Abstract: A mobile communication terminal according to the present invention has a leaky transmission line whose radiation direction faces opposite a radiation direction of a part or a whole of the leaky transmission line of a wireless base station, as at least a part of an antenna element, connected to the communication terminal. Here, preferably, when a difference in angle between the radiation directions falls within the range between 180±7.5 degrees, the radiation directions are considered to face opposite each other. With this configuration, even when the leaky transmission line of the wireless base station has a curved line portion, a curved portion or the like, it is possible to ensure satisfactory communications with the wireless base station without a complicated configuration of the system but by a simple process to build the system.Type: ApplicationFiled: January 15, 2009Publication date: July 23, 2009Applicants: TOSHIBA TEC KABUSHIKI KAISHA, FUJIKURA LTDInventors: Tomonori Sugiyama, Naohiro Matsushita, Jun Yaginuma, Fumio Suzuki, Kazuhiko Takano, Nobunao Ishii
-
Patent number: 7499672Abstract: A leaky coaxial cable is arranged to meander on a ceiling of an indoor space where a wireless LAN is to be worked. One end of the leaky coaxial cable is connected to a wireless base station unit and the other end thereof is connected to a terminator. The wireless base station unit makes wireless communication with a wireless terminal unit through the leaky coaxial cable by modulation and demodulation in orthogonal frequency division multiplex modulation (OFDM).Type: GrantFiled: October 16, 2007Date of Patent: March 3, 2009Assignee: Toshiba Tec Kabushiki KaishaInventor: Naohiro Matsushita
-
Publication number: 20090017862Abstract: The present invention provides a wireless communication system includes a plurality of leaky transmission lines and sufficiently increases a wireless area. The present invention relates to a wireless communication system which includes a wireless base station; a plurality of leaky transmission lines that function as antennas of the wireless base station; and a selector for selecting each of the leaky transmission lines and thereby connecting the leaky transmission lines to the wireless base station, wherein only one leaky transmission line is selected and connected at any given time. The selector may select all of the leaky transmission lines cyclically, one at any given time. Alternatively, the selector may select one of the leaky transmission lines according to a control signal from a selection controller.Type: ApplicationFiled: July 10, 2008Publication date: January 15, 2009Inventors: Jun YAGINUMA, Naohiro MATSUSHITA, Tomonori SUGIYAMA