Patents by Inventor Akihiko Matsuoka
Akihiko Matsuoka 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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Patent number: 11469929Abstract: Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)? obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.Type: GrantFiled: May 19, 2021Date of Patent: October 11, 2022Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Yutaka Murakami, Kiyotaka Kobayashi, Masayuki Orihashi, Akihiko Matsuoka
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Patent number: 11223457Abstract: A transmission apparatus includes a plurality of orthogonal frequency division multiplexing (OFDM) modulation signal generators, which generate a first OFDM modulation signal and a second OFDM modulation signal. The transmission apparatus also includes a transmitter that transmits the first OFDM modulation signal from a first antenna and the second OFDM modulation signal from a second antenna, in an identical frequency band.Type: GrantFiled: October 21, 2019Date of Patent: January 11, 2022Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka
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Patent number: 11218266Abstract: A plurality of multicarrier signals is generated. Each of the plurality of multicarrier signals includes a pilot symbol sequence at a same temporal point in each multicarrier signal. Each pilot symbol sequence includes a plurality of pilot symbols with non-zero amplitude. The pilot symbol sequences are orthogonal to each other at the same temporal point. A quantity of the plurality of pilot symbols in each pilot symbol sequence is greater than or equal to a quantity of the plurality of multicarrier signals to be transmitted. The plurality of multicarrier signals are transmitted in an identical frequency band from a plurality of antennas. The plurality of antennas includes two, three, or four antennas.Type: GrantFiled: January 13, 2021Date of Patent: January 4, 2022Assignee: Redwood Technologies, LLCInventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka
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Publication number: 20210376982Abstract: A radio transmission apparatus determines information indicative of an estimated communications channel condition and generates a single modulation signal or a plurality of modulation signals based on the estimated communications channel condition information. The single modulation signal is transmitted from a first antenna of a plurality of antenna or the plurality of modulation signals are transmitted from the first antenna and at least a second antenna of the plurality of antenna. The plurality of modulation signals include different information from each other and are transmitted over an identical frequency band and at an identical temporal point. The single modulation signal and the plurality of modulation signals contain parameter information indicating a number of modulation signals transmitted at the same time.Type: ApplicationFiled: August 17, 2021Publication date: December 2, 2021Inventors: Yutaka MURAKAMI, Masayuki ORIHASHI, Akihiko MATSUOKA
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Patent number: 11153974Abstract: A connector device that includes a circuit board; a connector attached to the circuit board; a plurality of collars for external attachment; a first molded resin that is made of a first resin material whose melting point or softening point is 230° C. or less, and covers the entire circuit board and part of the connector; and a second molded resin that is welded to the first molded resin, is made of a second resin material whose melting point or softening point is higher than that of the first resin material for the first molded resin, and covers outer circumferences of the collars.Type: GrantFiled: March 13, 2020Date of Patent: October 19, 2021Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yu Muronoi, Naomichi Kawashima, Masayuki Kato, Takeo Uchino, Akihiko Matsuoka, Tatsuo Hirabayashi
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Patent number: 11115166Abstract: A radio transmission apparatus determines information indicative of an estimated communications channel condition and generates a single modulation signal or a plurality of modulation signals based on the estimated communications channel condition information. The single modulation signal is transmitted from a first antenna of a plurality of antenna or the plurality of modulation signals are transmitted from the first antenna and at least a second antenna of the plurality of antenna. The plurality of modulation signals include different information from each other and are transmitted over an identical frequency band and at an identical temporal point. The single modulation signal and the plurality of modulation signals contain parameter information indicating a number of modulation signals transmitted at the same time.Type: GrantFiled: March 19, 2020Date of Patent: September 7, 2021Assignee: Wi-Fi One, LLCInventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka
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Publication number: 20210273832Abstract: Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)? obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.Type: ApplicationFiled: May 19, 2021Publication date: September 2, 2021Inventors: Yutaka Murakami, Kiyotaka Kobayashi, Masayuki Orihashi, Akihiko Matsuoka
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Patent number: 11050592Abstract: Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)? obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.Type: GrantFiled: December 10, 2019Date of Patent: June 29, 2021Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Yutaka Murakami, Kiyotaka Kobayashi, Masayuki Orihashi, Akihiko Matsuoka
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Publication number: 20210167915Abstract: A plurality of multicarrier signals is generated. Each of the plurality of multicarrier signals includes a pilot symbol sequence at a same temporal point in each multicarrier signal. Each pilot symbol sequence includes a plurality of pilot symbols with non-zero amplitude. The pilot symbol sequences are orthogonal to each other at the same temporal point. A quantity of the plurality of pilot symbols in each pilot symbol sequence is greater than or equal to a quantity of the plurality of multicarrier signals to be transmitted. The plurality of multicarrier signals are transmitted in an identical frequency band from a plurality of antennas. The plurality of antennas includes two, three, or four antennas.Type: ApplicationFiled: January 13, 2021Publication date: June 3, 2021Inventors: Yutaka MURAKAMI, Masayuki ORIHASHI, Akihiko MATSUOKA
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Patent number: 11018821Abstract: A first OFDM frame signal includes a grid of multiple frequency subcarriers and multiple time periods.—An OFDM symbol is transmitted using multiple frequency subcarriers during a time period and includes known reference OFDM symbols assigned to corresponding time-frequency resource elements in the grid. —Each resource element is defined by a one of the multiple frequency subcarriers and one of the multiple time periods. —A second OFDM frame signal is also generated, but the resource elements assigned to the known reference OFDM symbols are different from the time-frequency resource elements in the grid assigned to the known reference OFDM symbols in the first OFDM frame signal. The first and second OFDM frame signals are converted to a first and second radio signals. The first radio signal is transmitted from a first antenna and the second radio signal from a second, different antenna.Type: GrantFiled: February 26, 2019Date of Patent: May 25, 2021Assignee: Optis Wireless Technology, LLCInventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka, Yoichi Nakagawa
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Patent number: 10924241Abstract: A plurality of multicarrier signals is generated. Each of the plurality of multicarrier signals includes a pilot symbol sequence at a same temporal point in each multicarrier signal. Each pilot symbol sequence includes a plurality of pilot symbols with non-zero amplitude. The pilot symbol sequences are orthogonal to each other at the same temporal point. A quantity of the plurality of pilot symbols in each pilot symbol sequence is greater than or equal to a quantity of the plurality of multicarrier signals to be transmitted. The plurality of multicarrier signals are transmitted in an identical frequency band from a plurality of antennas. The plurality of antennas includes two, three, or four antennas.Type: GrantFiled: April 15, 2020Date of Patent: February 16, 2021Assignee: Wi-Fi One, LLCInventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka
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Publication number: 20200315027Abstract: A connector device that includes a circuit board; a connector attached to the circuit board; a plurality of collars for external attachment; a first molded resin that is made of a first resin material whose melting point or softening point is 230° C. or less, and covers the entire circuit board and part of the connector; and a second molded resin that is welded to the first molded resin, is made of a second resin material whose melting point or softening point is higher than that of the first resin material for the first molded resin, and covers outer circumferences of the collars.Type: ApplicationFiled: March 13, 2020Publication date: October 1, 2020Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yu MURONOI, Naomichi KAWASHIMA, Masayuki KATO, Takeo UCHINO, Akihiko MATSUOKA, Tatsuo HIRABAYASHI
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Publication number: 20200244416Abstract: A plurality of multicarrier signals is generated. Each of the plurality of multicarrier signals includes a pilot symbol sequence at a same temporal point in each multicarrier signal. Each pilot symbol sequence includes a plurality of pilot symbols with non-zero amplitude. The pilot symbol sequences are orthogonal to each other at the same temporal point. A quantity of the plurality of pilot symbols in each pilot symbol sequence is greater than or equal to a quantity of the plurality of multicarrier signals to be transmitted. The plurality of multicarrier signals are transmitted in an identical frequency band from a plurality of antennas. The plurality of antennas includes two, three, or four antennas.Type: ApplicationFiled: April 15, 2020Publication date: July 30, 2020Inventors: Yutaka MURAKAMI, Masayuki ORIHASHI, Akihiko MATSUOKA
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Publication number: 20200220687Abstract: A radio transmission apparatus determines information indicative of an estimated communications channel condition and generates a single modulation signal or a plurality of modulation signals based on the estimated communications channel condition information. The single modulation signal is transmitted from a first antenna of a plurality of antenna or the plurality of modulation signals are transmitted from the first antenna and at least a second antenna of the plurality of antenna. The plurality of modulation signals include different information from each other and are transmitted over an identical frequency band and at an identical temporal point. The single modulation signal and the plurality of modulation signals contain parameter information indicating a number of modulation signals transmitted at the same time.Type: ApplicationFiled: March 19, 2020Publication date: July 9, 2020Inventors: Yutaka MURAKAMI, Masayuki ORIHASHI, Akihiko MATSUOKA
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Patent number: 10651993Abstract: A plurality of multicarrier signals is generated. Each of the plurality of multicarrier signals includes a pilot symbol sequence at a same temporal point in each multicarrier signal. Each pilot symbol sequence includes a plurality of pilot symbols with non-zero amplitude. A quantity of the plurality of pilot symbols in each pilot symbol sequence is greater than or equal to a quantity of the plurality of multicarrier signals to be transmitted. The plurality of multicarrier signals are transmitted in an identical frequency band from a plurality of antennas.Type: GrantFiled: June 5, 2019Date of Patent: May 12, 2020Assignee: Wi-Fi One, LLCInventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka
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Patent number: 10630443Abstract: A radio transmission apparatus determines information indicative of an estimated communications channel condition and generates a single modulation signal or a plurality of modulation signals based on the estimated communications channel condition information. The single modulation signal from a first antenna or the plurality of modulation signals is(are) transmitted from the first antenna and a second antenna. The plurality of modulation signals include different information from each other and are transmitted over an identical frequency band and at an identical temporal point. The single modulation signal and the plurality of modulation signals contain parameter information indicating a number of modulation signals transmitted at the same time.Type: GrantFiled: May 16, 2019Date of Patent: April 21, 2020Assignee: Wi-Fi One, LLCInventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka
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Publication number: 20200112463Abstract: Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)? obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.Type: ApplicationFiled: December 10, 2019Publication date: April 9, 2020Inventors: Yutaka MURAKAMI, Kiyotaka Kobayashi, Masayuki Orihashi, Akihiko Matsuoka
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Patent number: 10578713Abstract: A processor generates first position information on a relative position between a camera and a radar, acquires, from the radar, second position information on a relative position between the radar and a reflector, the second position information being generated by using an arrival direction of the radar transmission wave, and calculates a displacement amount by comparing the first position information and the second position information with each other.Type: GrantFiled: May 26, 2016Date of Patent: March 3, 2020Assignee: Panasonic CorporationInventors: Hidekuni Yomo, Akihiko Matsuoka
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Publication number: 20200052851Abstract: A transmission apparatus includes a plurality of orthogonal frequency division multiplexing (OFDM) modulation signal generators, which generate a first OFDM modulation signal and a second OFDM modulation signal. The transmission apparatus also includes a transmitter that transmits the first OFDM modulation signal from a first antenna and the second OFDM modulation signal from a second antenna, in an identical frequency band.Type: ApplicationFiled: October 21, 2019Publication date: February 13, 2020Inventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka
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Patent number: RE49244Abstract: A communication apparatus includes a reference signal generating section, a transmitting section, a propagation estimating section, a first data acquiring section, and a decoding section. The reference signal generating section generates a first reference signal to enable a communicating party to estimate a propagation environment. The transmitting section transmits the first reference signal. The propagation estimating section estimates a first propagation estimation value of the propagation environment using a second reference signal transmitted from the communicating party. The first data acquiring section generates first data using the first propagation estimation value. The decoding section decodes a transmission signal encoded using a second propagation estimation value that is estimated by the communicating party using the first reference signal, to obtain second data using the first data.Type: GrantFiled: March 7, 2019Date of Patent: October 11, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Masayuki Orihashi, Yutaka Murakami, Katsuaki Abe, Akihiko Matsuoka