Patents by Inventor Hiroaki Sudo
Hiroaki Sudo 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).
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Publication number: 20170127425Abstract: An object is to suppress a decrease in communication quality and improve the communication quality even when interference is present in some of a frequency band in use in a case where a turbo coding scheme is combined with multicarrier communication using some of a frequency band shared with another system. A frequency selector (107) selects a band not used by another system, based on a measurement value of a reception level, then selects a subband for systematic-bit mapping from among subbands having a measurement value of the reception level lower than a threshold, and selects a subband for parity-bit mapping from among subbands other than the subband for systematic-bit mapping, for each subband (carrier frequency) of the selected band. A carrier-mapper (110) maps a systematic bit and parity bit to each subband based on the result of selection by the frequency selector (107).Type: ApplicationFiled: October 24, 2016Publication date: May 4, 2017Applicant: PANASONIC CORPORATIONInventors: Hiroaki SUDO, Mitsuru UESUGI
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Publication number: 20170066269Abstract: An ink ribbon includes a core and a mounting section. The core is configured to be wound with an ink ribbon tape. The mounting section is mounted with an identification information recording part in which identification information of the ink ribbon tape is recorded to be inputtable and outputtable. The mounting section includes at least one hole section which supports at least one end portion of the core to be rotatable. The mounting section covers at least a part of the core via the ink ribbon tape wound around the core in a state where the core is rotatable.Type: ApplicationFiled: September 7, 2016Publication date: March 9, 2017Inventors: Takayuki EHARA, Hiroaki SUDO
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Publication number: 20160380795Abstract: An OFDM signal transmission apparatus is provided, which includes a mapping unit configured to map first signals into N subcarriers and second signals into M subcarrier(s) to form an OFDM signal, wherein N is larger than M. The first signals are each indicating a same bit of retransmission information and the second signals are each indicating a same bit of information other than retransmission information. The OFDM signal transmission apparatus further includes a transmitting unit configured to transmit the formed OFDM signal.Type: ApplicationFiled: September 9, 2016Publication date: December 29, 2016Inventor: Hiroaki Sudo
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Patent number: 9479377Abstract: An OFDM signal transmission apparatus is provided, which includes a mapping unit configured to map first signals into N subcarriers and second signals into M subcarrier(s) to form an OFDM signal, wherein N is larger than M. The first signals are each indicating a same bit of retransmission information and the second signals are each indicating a same bit of information other than retransmission information. The OFDM signal transmission apparatus further includes a transmitting unit configured to transmit the formed OFDM signal.Type: GrantFiled: October 1, 2014Date of Patent: October 25, 2016Assignee: Godo Kaisha IP Bridge 1Inventor: Hiroaki Sudo
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Patent number: 9418710Abstract: A hard disk drive (HDD) filter assembly may include an inlet for receiving an input gas, a cyclonic particle separator configured for separating certain sized particulates from the gas, and a trap chamber for securing the particulates separated from the gas. Such a filter assembly may be designed and configured to separate and secure nanoparticulates from the input gas, such as nanoparticulates with diameters less than around 100 nm. A filter assembly may further include a desiccant chamber for controlling the humidity of the cleaned gas and a membrane for absorbing and/or adsorbing some remaining particulates from the gas before the gas enters the main chamber of the HDD.Type: GrantFiled: June 17, 2015Date of Patent: August 16, 2016Assignee: HGST Netherlands B.V.Inventors: Seong-Hun Choe, Jr., Hiroaki Sudo, Keio Wakabayashi
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Patent number: 9270511Abstract: An OFDM signal transmission apparatus is provided, which includes a mapping unit configured to map first signals into N subcarriers and second signals into M subcarrier(s) to form an OFDM signal, wherein N is larger than M. The first signals are each indicating a same bit of retransmission information and the second signals are each indicating a same bit of information other than retransmission information. The OFDM signal transmission apparatus further includes a transmitting unit configured to transmit the formed OFDM signal.Type: GrantFiled: April 9, 2014Date of Patent: February 23, 2016Assignee: Godo Kaisha IP Bridge 1Inventor: Hiroaki Sudo
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Publication number: 20160029236Abstract: The present invention aims to perform sensing of a frequency with high accuracy by securing a sufficient amount of time to measure a reception level of a guard time while avoiding a decrease in transmission rate as much as possible even when the distance between a terminal and a base station is short. To this end, a base station is disclosed which is configured to set a guard time based on the measured reception level of a UL signal during a period other than a period when it is time to measure an interference amount. Meanwhile, the base station sets a guard time so as to secure a predetermined length required for measurement of a reception level when it is time to measure the interference amount.Type: ApplicationFiled: July 24, 2015Publication date: January 28, 2016Applicant: PANASONIC CORPORATIONInventor: Hiroaki SUDO
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Patent number: 9106281Abstract: In MIMO communication, a communication device is provided that transmits a transfer rate request signal while reducing it and reducing the interference and power consumption when the transfer rate request signal is transmitted substantially without lowering the transmission efficiency. A modulation encoding unit encodes and modulates transmission data transmitted to a communication partner and the transfer rate request signal is the plurality of transmission antennas. A transmission unit and a transmission antenna transmit a signal from the modulation encoding unit. A transmission control unit controls transmission of a signal transmitted from the transmission antenna and transmits a transfer rate request signal of one transmission antenna via the transmission antenna according to a comparison result between a difference of the transfer rate request signal in the respective transmission antenna of the communication partner and a predetermined value.Type: GrantFiled: February 19, 2015Date of Patent: August 11, 2015Assignee: Godo Kaisha IP Bridge 1Inventor: Hiroaki Sudo
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Patent number: 9077600Abstract: An OFDM signal transmission apparatus is provided, which includes a mapping unit configured to map first signals into N subcarriers and second signals into M subcarrier(s) to form an OFDM signal, wherein N is larger than M. The first signals are each indicating a same bit of retransmission information and the second signals are each indicating a same bit of information other than retransmission information. The OFDM signal transmission apparatus further includes a transmitting unit configured to transmit the formed OFDM signal.Type: GrantFiled: November 11, 2013Date of Patent: July 7, 2015Assignee: Godo Kaisha IP Bridge 1Inventor: Hiroaki Sudo
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Publication number: 20150171938Abstract: In MIMO communication, a communication device is provided that transmits a transfer rate request signal while reducing it and reducing the interference and power consumption when the transfer rate request signal is transmitted substantially without lowering the transmission efficiency. A modulation encoding unit encodes and modulates transmission data transmitted to a communication partner and the transfer rate request signal is the plurality of transmission antennas. A transmission unit and a transmission antenna transmit a signal from the modulation encoding unit. A transmission control unit controls transmission of a signal transmitted from the transmission antenna and transmits a transfer rate request signal of one transmission antenna via the transmission antenna according to a comparison result between a difference of the transfer rate request signal in the respective transmission antenna of the communication partner and a predetermined value.Type: ApplicationFiled: February 19, 2015Publication date: June 18, 2015Inventor: Hiroaki SUDO
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Publication number: 20150163040Abstract: In MIMO communication, a communication device is provided that transmits a transfer rate request signal while reducing it and reducing the interference and power consumption when the transfer rate request signal is transmitted substantially without lowering the transmission efficiency. A modulation encoding unit encodes and modulates transmission data transmitted to a communication partner and the transfer rate request signal is the plurality of transmission antennas. A transmission unit and a transmission antenna transmit a signal from the modulation encoding unit. A transmission control unit controls transmission of a signal transmitted from the transmission antenna and transmits a transfer rate request signal of one transmission antenna via the transmission antenna according to a comparison result between a difference of the transfer rate request signal in the respective transmission antenna of the communication partner and a predetermined value.Type: ApplicationFiled: February 19, 2015Publication date: June 11, 2015Inventor: Hiroaki SUDO
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Patent number: 9001915Abstract: In MIMO communication, a communication device is provided that transmits a transfer rate request signal while reducing it and reducing the interference and power consumption when the transfer rate request signal is transmitted substantially without lowering the transmission efficiency. A modulation encoding unit encodes and modulates transmission data transmitted to a communication partner and the transfer rate request signal in the plurality of transmission antennas. A transmission unit and a transmission antenna transmit a signal from the modulation encoding unit. A transmission control unit controls transmission of a signal transmitted from the transmission antenna and transmits a transfer rate request signal of one transmission antenna via the transmission antenna according to a comparison result between a difference of the transfer rate request signal in the respective transmission antenna of the communication partner and a predetermined value.Type: GrantFiled: October 12, 2011Date of Patent: April 7, 2015Assignee: Godo Kaisha IP Bridge 1Inventor: Hiroaki Sudo
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Publication number: 20150016565Abstract: An OFDM signal transmission apparatus is provided, which includes a mapping unit configured to map first signals into N subcarriers and second signals into M subcarrier(s) to form an OFDM signal, wherein N is larger than M. The first signals are each indicating a same bit of retransmission information and the second signals are each indicating a same bit of information other than retransmission information. The OFDM signal transmission apparatus further includes a transmitting unit configured to transmit the formed OFDM signal.Type: ApplicationFiled: October 1, 2014Publication date: January 15, 2015Inventor: Hiroaki Sudo
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Publication number: 20140254535Abstract: In a transmitting apparatus, a transmission rate request signal generating unit (102) generates, for each of a plurality of frequencies, a transmission rate request signal that is used for requesting a transmission rate for each of the plurality of frequencies and that is constituted by a plurality of bits. A higher-order-bit transmission control unit (104) establishes frequencies for transmitting higher-order bits of a CQI such that a first frequency interval in which the higher-order bits are transmitted is longer than a second frequency interval in which the lower-order bits of the CQI are transmitted. A lower-order-bit transmission control unit (105) establishes frequencies for transmitting the lower-order bits of the CQI. The transmitting apparatus (100) uses the frequencies, which have been established by the higher-order-bit transmission control unit (104) and lower-order-bit transmission control unit (105), to transmit the higher-order bits and lower-order bits of the CQI.Type: ApplicationFiled: October 10, 2012Publication date: September 11, 2014Applicant: Panasonic CorporationInventor: Hiroaki Sudo
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Publication number: 20140219222Abstract: An OFDM signal transmission apparatus is provided, which includes a mapping unit configured to map first signals into N subcarriers and second signals into M subcarrier(s) to form an OFDM signal, wherein N is larger than M. The first signals are each indicating a same bit of retransmission information and the second signals are each indicating a same bit of information other than retransmission information. The OFDM signal transmission apparatus further includes a transmitting unit configured to transmit the formed OFDM signal.Type: ApplicationFiled: April 9, 2014Publication date: August 7, 2014Applicant: GODO KAISHA IP BRIDGE 1Inventor: Hiroaki SUDO
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Patent number: 8737192Abstract: The degree of multiplexing of a code division multiplexed signal transmitted by subcarriers is selected on a subcarrier-by-subcarrier basis. As a result, inter-code interference on the propagation path and degradation on the propagation path are lower for a code division multiplexed signal allocated to subcarriers with a low degree of signal multiplexing (G1) than for transmit signals allocated to subcarriers with a high degree of multiplexing. By this technique, it is possible to prevent degradation of the error rate characteristics of important information without lowering spectral efficiency significantly as compared with the case in which the degree of signal multiplexing is decided uniformly for all subcarriers, and to achieve compatibility between spectral efficiency and error rate characteristics.Type: GrantFiled: December 20, 2011Date of Patent: May 27, 2014Assignee: Panasonic CorporationInventor: Hiroaki Sudo
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Publication number: 20140078994Abstract: An OFDM signal transmission apparatus is provided, which includes a mapping unit configured to map first signals into N subcarriers and second signals into M subcarrier(s) to form an OFDM signal, wherein N is larger than M. The first signals are each indicating a same bit of retransmission information and the second signals are each indicating a same bit of information other than retransmission information. The OFDM signal transmission apparatus further includes a transmitting unit configured to transmit the formed OFDM signal.Type: ApplicationFiled: November 11, 2013Publication date: March 20, 2014Applicant: Panasonic CorporationInventor: Hiroaki Sudo
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Patent number: 8593937Abstract: An OFDM signal transmission apparatus is provided, which includes a mapping unit configured to map first signals into N subcarriers and second signals into M subcarrier(s) to form an OFDM signal, wherein N is larger than M. The first signals are each indicating a same bit of retransmission information and the second signals are each indicating a same bit of information other than retransmission information. The OFDM signal transmission apparatus further includes a transmitting unit configured to transmit the formed OFDM signal.Type: GrantFiled: April 3, 2013Date of Patent: November 26, 2013Assignee: Panasonic CorporationInventor: Hiroaki Sudo
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Patent number: 8526297Abstract: An OFDM signal transmission apparatus is provided, which includes a mapping unit configured to map first signals into N subcarriers and second signals into M subcarrier(s) to form an OFDM signal, wherein N is larger than M. The first signals are each indicating a same bit of retransmission information and the second signals are each indicating a same bit of information other than retransmission information. The OFDM signal transmission apparatus further includes a transmitting unit configured to transmit the formed OFDM signal.Type: GrantFiled: April 12, 2012Date of Patent: September 3, 2013Assignee: Panasonic CorporationInventor: Hiroaki Sudo
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Patent number: 8363632Abstract: The degree of multiplexing of a code division multiplexed signal transmitted by subcarriers is selected on a subcarrier-by-subcarrier basis. As a result, inter-code interference on the propagation path and degradation on the propagation path are lower for a code division multiplexed signal allocated to subcarriers with a low degree of signal multiplexing (G1) than for transmit signals allocated to subcarriers with a high degree of multiplexing. By this technique, it is possible to prevent degradation of the error rate characteristics of important information without lowering spectral efficiency significantly as compared with the case in which the degree of signal multiplexing is decided uniformly for all subcarriers, and to achieve compatibility between spectral efficiency and error rate characteristics.Type: GrantFiled: September 16, 2009Date of Patent: January 29, 2013Assignee: Panasonic CorporationInventor: Hiroaki Sudo