Patents by Inventor Yasushi Sogabe
Yasushi Sogabe 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: 8675628Abstract: A demultiplexing apparatus includes, in each of n stages, 2n FC+RXHBFs that down-sample a signal, from which a high-frequency component is removed after frequency conversion is carried out, and output the signal. The demultiplexing apparatus extracts, from an input signal including a plurality of band signals, the band signals to thereby demultiplex the input signal. The demultiplexing apparatus includes a reception-filter-bank control unit that calculates, based on channel information including bands and frequency arrangement of the band signals, a dividing position on a frequency axis and a frequency offset value indicating a frequency conversion value and instructs the FC+RXHBF, which is set as a target of output of divided signals of the input signal, about the calculated values. The FC+RXHBF carries out frequency conversion based on the frequency offset value.Type: GrantFiled: September 30, 2009Date of Patent: March 18, 2014Assignee: Mitsubishi Electric CorporationInventors: Akinori Fujimura, Yasushi Sogabe
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Patent number: 8542785Abstract: A communication apparatus that can suppress an increase in circuit size and reduce influence of interference, includes reception array antenna elements, a reception digital beam forming (DBF) network that generates a reception beam signal for forming M reception beams using a reception signal, and reception filter banks (FBs) that generate frequency split reception beam signals obtained by frequency-splitting the reception beam signal. The communication apparatus includes an interference-source detecting unit that stores, for each reception beam, an interference candidate beam area estimated based on an initial reception beam characteristic, calculates, based on the frequency split reception beam signals, a reception spectrum, and calculates, based on the reception spectrum and a reception spectrum of a reception beam to the interference candidate beam area, an interference source area.Type: GrantFiled: July 2, 2009Date of Patent: September 24, 2013Assignee: Mitsubishi Electric CorporationInventors: Akinori Fujimura, Kazunari Kihira, Yasushi Sogabe
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Patent number: 8379758Abstract: When transmitting an RF signal for power supply or a pulse signal for data transmission, amplification is made in such a manner that the peak power of the RF signal becomes greater than the peak power of the pulse signal. Thus transmitting the RF signal with the greater peak power enables charging of a capacitor 23 of noncontact wireless communication equipment 2 even if the distance to the noncontact wireless communication equipment 2 is long.Type: GrantFiled: September 10, 2010Date of Patent: February 19, 2013Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Noriharu Suematsu, Kouji Tsutsumi, Yasushi Sogabe, Toshihisa Kamemaru, Yoshihiko Konishi, Masataka Otsuka, Ryoji Hayashi, Akinori Taira
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Patent number: 8346161Abstract: When a transmission request for new data is issued under a situation where a plurality of data are transmitted to a specific service area from a plurality of service areas, a feeder link station searches an available frequency to be allocated to the new data in a down-link frequency band of the specific service area, and when any of data communications is completed, allocates a down-link frequency band used in the data communication as a down-link frequency band for the new data. A satellite repeater arranges the new data on the down-link frequency band right after the data communication is completed following a relay control by the feeder link station.Type: GrantFiled: May 15, 2007Date of Patent: January 1, 2013Assignee: Mitsubishi Electric CorporationInventors: Yasushi Sogabe, Akinori Fujimura, Takashi Kuwahara, Futaba Ejima
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Patent number: 8311146Abstract: A transmission device (10) includes: a series/parallel converter (11); an MSK modulator (31) for modulating a signal on a channel basis; a D/A converter (13); a frequency converter (14a) for conversion into different carrier frequencies; a synchronization circuit (32); an amplifier (15); a multiplexer (16) for multiplexing amplification signals; and an antenna (19).Type: GrantFiled: March 4, 2008Date of Patent: November 13, 2012Assignees: Mitsubishi Electric Corporation, Tohoku UniversityInventors: Akinori Fujimura, Yasushi Sogabe, Fumio Ishizu, Tadashi Takagi, Hiroyuki Nakase, Kazuo Tsubouchi, Suguru Kameda, Shoichi Oshima
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Publication number: 20110222467Abstract: A demultiplexing apparatus includes, in each of n stages, 2n FC+RXHBFs that down-sample a signal, from which a high-frequency component is removed after frequency conversion is carried out, and output the signal. The demultiplexing apparatus extracts, from an input signal including a plurality of band signals, the band signals to thereby demultiplex the input signal. The demultiplexing apparatus includes a reception-filter-bank control unit that calculates, based on channel information including bands and frequency arrangement of the band signals, a dividing position on a frequency axis and a frequency offset value indicating a frequency conversion value and instructs the FC+RXHBF, which is set as a target of output of divided signals of the input signal, about the calculated values. The FC+RXHBF carries out frequency conversion based on the frequency offset value.Type: ApplicationFiled: September 30, 2009Publication date: September 15, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Akinori Fujimura, Yasushi Sogabe
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Publication number: 20110206155Abstract: A communication apparatus that can suppress an increase in circuit size and reduce influence of interference, includes reception array antenna elements, a reception DBF network that generates a reception beam signal for forming M reception beams using a reception signal, and reception FBs that generate frequency split reception beam signals obtained by frequency-splitting the reception beam signal. The communication apparatus includes an interference-source detecting unit that stores, for each reception beam, an interference candidate beam area estimated based on an initial reception beam characteristic, calculates, based on the frequency split reception beam signals, a reception spectrum, and calculates, based on the reception spectrum and a reception spectrum of a reception beam to the interference candidate beam area, an interference source area. The reception DFB network generates a reception beam signal to perform null formation in the direction of the interference source area.Type: ApplicationFiled: July 2, 2009Publication date: August 25, 2011Applicant: Mitsubishi Electric CorporationInventors: Akinori Fujimura, Kazunari Kihira, Yasushi Sogabe
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Publication number: 20110205024Abstract: An inspection system according to the present invention includes a sensor (2) that obtains a position of a delivery vehicle (6) that carries an item (7) attached with an electric tag; a communication control device (4) that calculates a communication area using the position that is obtained by the sensor (2), the communication area configured to cover an area between the delivery vehicle (6) and a carry-in/out entrance of the item (7); and an antenna device (1) that produces the communication area by controlling an antenna and performs, via the antenna, wireless communications with the electric tag (8) that is within the communication area. The inspection system automatically inspects all the items that are present between the delivery vehicle (6) and the carry-in/out entrance.Type: ApplicationFiled: August 6, 2008Publication date: August 25, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Yasushi Sogabe
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Publication number: 20100329385Abstract: When transmitting an RF signal for power supply or a pulse signal for data transmission, amplification is made in such a manner that the peak power of the RF signal becomes greater than the peak power of the pulse signal. Thus transmitting the RF signal with the greater peak power enables charging of a capacitor 23 of noncontact wireless communication equipment 2 even if the distance to the noncontact wireless communication equipment 2 is long.Type: ApplicationFiled: September 10, 2010Publication date: December 30, 2010Inventors: Noriharu Suematsu, Kouji Tsutsumi, Yasushi Sogabe, Toshihisa Kamemaru, Yoshihiko Konishi, Masataka Otsuka, Ryoji Hayashi, Akinori Taira
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Patent number: 7817742Abstract: When transmitting an RF signal for power supply or a pulse signal for data transmission, amplification is made in such a manner that the peak power of the RF signal becomes greater than the peak power of the pulse signal. Thus transmitting the RF signal with the greater peak power enables charging of a capacitor 23 of noncontact wireless communication equipment 2 even if the distance to the noncontact wireless communication equipment 2 is long.Type: GrantFiled: July 30, 2004Date of Patent: October 19, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Noriharu Suematsu, Kouji Tsutsumi, Yasushi Sogabe, Toshihisa Kamemaru, Yoshihiko Konishi, Masataka Otsuka, Ryoji Hayashi, Akinori Taira
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Publication number: 20100135424Abstract: A communication apparatus includes: a plurality of antennas; a pre-processing unit that, according to an instruction from a higher-level layer, performs processing on each zone generated by time-division of a transmission frame and generates a transmitting signal; and post-processing units that transmit the transmitting signal generated corresponding to each zone via one or more of the antennas. Each post-processing unit includes transmission of a preamble via each of the antennas. Thus, each post-processing unit transmits the preamble in a format that enables a receiving side to correctly determine AGC power control amount.Type: ApplicationFiled: March 10, 2008Publication date: June 3, 2010Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tsutomu Usui, Fumio Ishizu, Yasushi Sogabe, Tsuyoshi Tominaga
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Publication number: 20100054357Abstract: A transmission device (10) includes: a series/parallel converter (11); an MSK modulator (31) for modulating a signal on a channel basis; a D/A converter (13); a frequency converter (14a) for conversion into different carrier frequencies; a synchronization circuit (32); an amplifier (15); a multiplexer (16) for multiplexing amplification signals; and an antenna (19).Type: ApplicationFiled: March 4, 2008Publication date: March 4, 2010Applicants: MITSUBISHI ELECTRIC CORPORATION, TOHOKU UNIVERSITYInventors: Akinori Fujimura, Yasushi Sogabe, Fumio Ishizu, Tadashi Takagi, Hiroyuki Nakase, Kazuo Tsubouchi, Suguru Kameda, Shoichi Oshima
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Publication number: 20090191810Abstract: When a transmission request for new data is issued under a situation where a plurality of data are transmitted to a specific service area from a plurality of service areas, a feeder link station searches an available frequency to be allocated to the new data in a down-link frequency band of the specific service area, and when any of data communications is completed, allocates a down-link frequency band used in the data communication as a down-link frequency band for the new data. A satellite repeater arranges the new data on the down-link frequency band right after the data communication is completed following a relay control by the feeder link station.Type: ApplicationFiled: May 15, 2007Publication date: July 30, 2009Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yasushi Sogabe, Akinori Fujimura, Takashi Kuwahara, Futaba Ejima
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Patent number: 7312810Abstract: In a wide-angle image-generating device for obtaining a developed image by picking up a wide-angle image of about ±90 degrees using a reflecting mirror having a rotary-symmetrical convex shape, and performing computational processing, the contents of the developed image thus obtained are tilted by the amount commensurate with the inclination of the central rotational axis of the reflecting plane, which produces the drawback of giving a sense of discomfort to the viewer when the central rotational axis of the reflecting plane is tilted from a vertical direction within a plane perpendicular to a 0-degree direction. In the present invention, an angle sensor (12) is provided in the imaging device for picking up a wide-angle image of about ±90 degrees using a reflecting mirror (1), and the tilt within the plane perpendicular to the 0-degree direction is measured.Type: GrantFiled: May 20, 2002Date of Patent: December 25, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenichi Hayashi, Yasushi Sogabe, Shigeki Murata
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Publication number: 20070081585Abstract: When transmitting an RF signal for power supply or a pulse signal for data transmission, amplification is made in such a manner that the peak power of the RF signal becomes greater than the peak power of the pulse signal. Thus transmitting the RF signal with the greater peak power enables charging of a capacitor 23 of noncontact wireless communication equipment 2 even if the distance to the noncontact wireless communication equipment 2 is long.Type: ApplicationFiled: July 30, 2004Publication date: April 12, 2007Inventors: Noriharu Suematsu, Kouji Tsutsumi, Yasushi Sogabe, Toshihisa Kamemaru, Yoshihiko Konishi, Masataka Otsuka, Ryoji Hayashi, Akinori Taira
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Patent number: 6891906Abstract: A demodulator is constituted by: a clock recovery circuit for generating a recovered clock from the series of received data and outputting the recovered clock; a state estimation circuit for making an estimation about a reception state such as waveform distortion or the like from the series of received data, and outputting waveform information based on the result of the estimation; and a correlator for correcting a reference and/or sample points on the basis of the recovered clock and the waveform information, obtaining a correlation value between the series of received data and the reference from a plurality of the sample points, and outputting demodulated data on the basis of the correlation value.Type: GrantFiled: September 9, 1998Date of Patent: May 10, 2005Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yasushi Sogabe, Fumio Ishizu, Keishi Murakami
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Patent number: 6847497Abstract: A wide-angle imaging device suitable for a monitor area of about 180 degrees. A first reflection mirror (1) is provided that has, around the rotation center axis (6) of a rotary symmetrical body, a reflection surface having an approximately ±90-degree convex shape with respect to a reference optical axis direction, an image forming lens (2) that has a principal point (7) on the rotation center axis of the first reflection mirror (1) and forms the image of a reflection beam from the first reflection mirror (1) and an imaging element (3) are disposed, and an object within approximately ±90 degrees around the rotation center axis of the first reflection mirror (1) is imaged.Type: GrantFiled: October 4, 2001Date of Patent: January 25, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasushi Sogabe, Shigeki Murata
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Patent number: 6762789Abstract: An omnidirectional video apparatus that operates when an image at an arbitrary view point is cut out from an omnidirectional image for reproduction, to minimize the amount of information transferred if all directions are stored in another apparatus is provided. Only positional information from an omnidirectional image position storage means (3) is displayed on an image pickup position display means (4) of a terminal device via a bidirectional communication means (10). A view point position indicating means (5) specifies a required view point position. An image converting means (6) of a supply center extracts required images from the omnidirectional image position storage means (3) depending on the view point position indicated by the view point position indicating means (5) and transmits the images via the bidirectional communication means (10) to the terminal device for display.Type: GrantFiled: February 20, 2001Date of Patent: July 13, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasushi Sogabe, Hiroshi Ishiguro, Shigeki Murata, Kenichi Hayashi
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Publication number: 20040104996Abstract: In a wide-angle image-generating device for obtaining a developed image by picking up a wide-angle image of about ±90 degrees using a reflecting mirror having a rotary-symmetrical convex shape, and performing computational processing, the contents of the developed image thus obtained are tilted by the amount commensurate with the inclination of the central rotational axis of the reflecting plane, which produces the drawback of giving a sense of discomfort to the viewer when the central rotational axis of the reflecting plane is tilted from a vertical direction within a plane perpendicular to a 0-degree direction. In the present invention, an angle sensor (12) is provided in the imaging device for picking up a wide-angle image of about ±90 degrees using a reflecting mirror (1), and the tilt within the plane perpendicular to the 0-degree direction is measured.Type: ApplicationFiled: November 14, 2003Publication date: June 3, 2004Inventors: Kenichi Hayashi, Yasushi Sogabe, Shigeki Murata
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Patent number: 6738569Abstract: To provide an omnidirectional visual camera having a simple configuration and which can pick up omnidirectional images covering an angle of 360° around an axis. This camera comprises a reflecting member and a camera section. The reflecting member is composed of a rotating surface portion, a cylindrical portion and a joining section, which are integrally formed of a transparent material.Type: GrantFiled: July 24, 2001Date of Patent: May 18, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasushi Sogabe, Shigeki Murata