Patents by Inventor Yasuaki Sakanishi
Yasuaki Sakanishi 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: 9178709Abstract: A wireless communication system performs high-quality communication using Multicast communication where re-transmission processing is performed. The wireless communication system includes a program distribution unit for distributing a program using the Multicast communication; a first communication path for transmitting the program distributed from the program distribution unit; first communication units; user terminals; and a second and the user terminal and is also a wireless communication path where the re-transmission of a frame is performed, wherein the first communication unit selects a Multicast frame of a program requested by the user terminal from the first communication path, converts the selected Multicast frame into a Unicast frame, and transmits the converted Unicast frame to the user terminal.Type: GrantFiled: March 29, 2005Date of Patent: November 3, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masaaki Higashida, Shotaro Tanaka, Yasuaki Sakanishi, Seiji Horita, Tadayuki Inoue, Kenshi Taniguchi, Toshihiro Ezaki
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Patent number: 8477723Abstract: The present invention includes a receiving antenna receiving information while changing plural different wireless base stations; a seat information acquiring unit acquiring position information of a destination seat paired; a wireless base station selecting unit selecting a wireless base station to be connected on the basis of position information; and a directivity switching unit changing directivity of the receiving antenna on the basis of position information, which transmits at least one of video information and audio information from a wireless base station to a user seated on the seat.Type: GrantFiled: March 12, 2008Date of Patent: July 2, 2013Assignee: Panasonic CorporationInventors: Takashi Watanabe, Toshihiro Ezaki, Yasuaki Sakanishi, Wataru Noguchi
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Publication number: 20110176432Abstract: A radio communication system includes radio terminal apparatuses each arranged at a previously determined position, radio base station apparatuses for holding radio communications with these apparatuses, and a communication system controller for communicating with the respective radio terminal apparatus via the respective radio base station apparatuses connected thereto via a LAN.Type: ApplicationFiled: December 10, 2004Publication date: July 21, 2011Inventors: Seiji Horita, Shotaro Tanaka, Yasuaki Sakanishi, Masaaki Higashida, Tadayuki Inoue, Kenshi Taniguchi, Toshihiro Ezaki
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Publication number: 20100182977Abstract: The present invention includes a receiving antenna receiving information while changing plural different wireless base stations; a seat information acquiring unit acquiring position information of a destination seat paired; a wireless base station selecting unit selecting a wireless base station to be connected on the basis of position information; and a directivity switching unit changing directivity of the receiving antenna on the basis of position information, which transmits at least one of video information and audio information from a wireless base station to a user seated on the seat.Type: ApplicationFiled: March 12, 2008Publication date: July 22, 2010Applicant: Panasonic CorporationInventors: Takashi Watanabe, Toshihiro Ezaki, Yasuaki Sakanishi, Wataru Noguchi
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Patent number: 7682028Abstract: An image transmission system enabling a user to recognize a communication status between a PC and a projector, and including a PC (300) as an image generating apparatus and a projector (400) as an image projecting apparatus. The projector (400) monitors a status of communication with the PC (300), and includes a status monitoring unit (402) generating information related to the communication status being monitored, and also a projector communication unit transmitting the generated information related to the communication status to the PC (300). The PC (300) includes a PC communication unit (301) receiving information related to the communication status from the projector (400), a beacon analyzing unit (302) analyzing the received information and a display output unit (303) displaying a result of the analysis by the beacon analyzing unit (302).Type: GrantFiled: March 8, 2005Date of Patent: March 23, 2010Assignee: Panasonic CorporationInventors: Tsuyoshi Maeda, Takashi Watanabe, Yasuaki Sakanishi
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Patent number: 7680454Abstract: A wireless network system arranges a plurality of access points along the aisles in a vehicle having two or more aisles. The positions of the access points on the first aisle and the positions of the access points on the second aisle are arranged in a zigzag pattern. The distance between neighboring access points is thus great, and there is no signal interference between adjacent access points.Type: GrantFiled: April 4, 2006Date of Patent: March 16, 2010Assignee: Panasonic CorporationInventors: Keiji Mori, Masaaki Higashida, Yasuaki Sakanishi, Toshihiro Ezaki
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Wireless transmission system and method for wirelessly transmitting data signals in a flight vehicle
Patent number: 7620364Abstract: Changing the seating configuration when there are wired connections to each seat is difficult. A wireless transmission system and method communicate wirelessly while also preventing interference with the ground communication system. The wireless transmission system wirelessly transmits data signals inside the aircraft, and has an altitude zone identification arrangement for determining in which of N altitude zones the aircraft is flying, access points that can transmit the data signals wirelessly on any one frequency band selected from among M frequency bands, client units for receiving the data signals, and a selection unit for selecting one of the M frequency bands based on the altitude zone in which the aircraft is flying. The altitude zone identification arrangement includes an aircraft altitude detection unit and system control unit, and the selection unit includes the system control unit.Type: GrantFiled: March 27, 2006Date of Patent: November 17, 2009Assignee: Panasonic CorporationInventors: Masaaki Higashida, Yasuaki Sakanishi, Toshihiro Ezaki -
Patent number: 7565143Abstract: Because wired connections make changing the seating configuration difficult, a wireless client device enables stable wireless transmission. The wireless client device wirelessly transmits to and receives data signals from an access point inside an aircraft. The wireless client device has a seat unit with a seat portion on which aircraft passengers sit, an antenna for sending and receiving the data signals, a signal processing arrangement operable to handle data signal receiving and transmitting processes, and a signal output arrangement operable to output processed reception signals. The antenna arrangement, signal processing arrangement, and signal output arrangement are disposed to the seat unit.Type: GrantFiled: March 28, 2006Date of Patent: July 21, 2009Assignee: Panasonic CorporationInventors: Tomotaka Takeuchi, Masaaki Higashida, Toshihiro Ezaki, Yasuaki Sakanishi
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Patent number: 7551175Abstract: An image transmission system which enables to perform various types of presentations and also to reduce a transmission path is provided. A PC includes a display image generation unit, a layer capture unit for sorting a layer composing a display image into a layer to be transmitted to a projector and a layer not to be transmitted, transmission layer adjustment unit for performing adjustment on the captured layer, and a PC communication unit for transmitting the adjusted layer to the projector, the projector includes a determines adjustment description put for a projector communication unit for receiving a transmission layer, an output layer adjustment unit for determining the content of the adjustment performed on the received layer and readjusting the received layer based on the judgment, and a display output unit for projecting the received layer onto a screen.Type: GrantFiled: March 8, 2005Date of Patent: June 23, 2009Assignee: Panasonic CorporationInventors: Yasuaki Sakanishi, Takashi Watanabe, Tsuyoshi Maeda
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Publication number: 20090141718Abstract: High-quality communication using Multicast is realized in wireless communication where re-transmission processing is performed. The present invention includes: a program distribution unit (100) for distributing a program using the Multicast communication; a first communication path (Y1) for transmitting the program distributed from the program distribution unit (100); first communication units (102a, 102b); user terminals (105a to 105h); and a second communication path (103) which is a communication path between the first communication unit (102a, 102b) and the user terminal and is also a wireless communication path where the re-transmission of a frame is performed, wherein the first communication unit (102a or 102b) selects a Multicast frame of a program requested by the user terminal (105a to 105h) from the first communication path (Y1), converts the selected Multicast frame into a Unicast frame, and transmits the converted Unicast frame to the user terminal (105a to 105h).Type: ApplicationFiled: March 29, 2005Publication date: June 4, 2009Inventors: Masaaki Higashida, Shotaro Tanaka, Yasuaki Sakanishi, Seiji Horita, Tadayuki Inoue, Kenshi Taniguchi, Toshihiro Ezaki
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Publication number: 20080158438Abstract: An image transmission system, which enables for a user to know a communication status between a PC and a projector, is provided. The image transmission system includes a PC (300) as an image generating apparatus and a projector (400) as an image projecting apparatus. The projector (400) monitors a status of communication with the PC (300), and includes a status monitoring unit (402) for generating information related to the communication status which is being monitored, and also a projector communication unit for transmitting the generated information related to the communication status to the PC (300). The PC (300) includes a PC communication unit (301) for receiving information related to the communication status from the projector (400), a beacon analyzing unit (302) for analyzing the received information and a display output unit (303) for displaying a result of the analysis by the beacon analyzing unit (302).Type: ApplicationFiled: March 8, 2005Publication date: July 3, 2008Inventors: Tsuyoshi Maeda, Takashi Watanabe, Yasuaki Sakanishi
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Publication number: 20080129837Abstract: In a case where a thumbnail image is displayed at the time of insertion of an image file storage medium including an automatic reproduction file, the thumbnail image is displayed only for the image file which contains description of automatic reproduction in an automatic reproduction file. Also, a thumbnail image of an image file which contains description of non-automatic reproduction in the automatic reproduction file is replaced with a dummy image or displayed as a thumbnail image not apparently capable of being recognized in response to a user request.Type: ApplicationFiled: November 5, 2007Publication date: June 5, 2008Inventors: Junji Masumoto, Yasuaki Sakanishi
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Patent number: 7369262Abstract: In a case where a thumbnail image is displayed at the time of insertion of an image file storage medium including an automatic reproduction file, the thumbnail image is displayed only for the image file which contains description of automatic reproduction in an automatic reproduction file. Also, a thumbnail image of an image file which contains description of non-automatic reproduction in the automatic reproduction file is replaced with a dummy image or displayed as a thumbnail image not apparently capable of being recognized in response to a user request.Type: GrantFiled: March 31, 2003Date of Patent: May 6, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Junji Masumoto, Yasuaki Sakanishi
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Publication number: 20070257927Abstract: An image transmission system which enables to perform various types of presentations and also to reduce a transmission path is provided. A PC (500) includes a display image generation unit (502), a layer capture unit (503) for sorting a layer composing a display image into a layer to be transmitted to a projector (600) and a layer not to be transmitted, transmission layer adjustment unit (507) for performing adjustment on the captured layer, and a PC communication unit (504) for transmitting the adjusted layer to the projector (600), the projector (600) includes a determines adjustment description put for a projector communication unit (601) for receiving a transmission layer, an output layer adjustment unit (603) for determining the content of the adjustment performed on the received layer and readjusting the received layer based on the judgment, and a display output unit (602) for projecting the received layer onto a screen.Type: ApplicationFiled: March 8, 2005Publication date: November 8, 2007Inventors: Yasuaki Sakanishi, Takashi Watanabe, Tsuyoshi Maeda
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Publication number: 20070217622Abstract: Because wired connections make changing the seating configuration difficult, a wireless client device enables stable wireless transmission. The wireless client device wirelessly transmits to and receives data signals from an access point inside an aircraft. The wireless client device has a seat unit with a seat portion on which aircraft passengers sit, an antenna for sending and receiving the data signals, a signal processing arrangement operable to handle data signal receiving and transmitting processes, and a signal output arrangement operable to output processed reception signals. The antenna arrangement, signal processing arrangement, and signal output arrangement are disposed to the seat unit.Type: ApplicationFiled: March 28, 2006Publication date: September 20, 2007Inventors: Tomotaka Takeuchi, Masaaki Higashida, Toshihiro Ezaki, Yasuaki Sakanishi
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Publication number: 20070213009Abstract: Changing the seating configuration when there are wired connections to each seat is difficult. A wireless transmission system and method communicate wirelessly while also preventing interference with the ground communication system. The wireless transmission system wirelessly transmits data signals inside the aircraft, and has an altitude zone identification arrangement f or determining in which of N altitude zones the aircraft is flying, access points that can transmit the data signals wirelessly on any one frequency band selected from among M frequency bands, client units for receiving the data signals, and a selection unit for selecting one of the M frequency bands based on the altitude zone in which the aircraft is flying. The altitude zone identification arrangement includes an aircraft altitude detection unit and system control unit, and the selection unit includes the system control unit.Type: ApplicationFiled: March 27, 2006Publication date: September 13, 2007Inventors: Masaaki Higashida, Yasuaki Sakanishi, Toshihiro Ezaki
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Publication number: 20060221895Abstract: A wireless network system arranges a plurality of access points along the aisles in a vehicle having two or more aisles. The positions of the access points on the first aisle and the positions of the access points on the second aisle are arranged in a zigzag pattern. The distance between neighboring access points is thus great, and there is no signal interference between adjacent access points.Type: ApplicationFiled: April 4, 2006Publication date: October 5, 2006Inventors: Keiji Mori, Masaaki Higashida, Yasuaki Sakanishi, Toshihiro Ezaki
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Publication number: 20050200725Abstract: In a case where a thumbnail image is displayed at the time of insertion of an image file storage medium including an automatic reproduction file, the thumbnail image is displayed only for the image file which contains description of automatic reproduction in an automatic reproduction file. Also, a thumbnail image of an image file which contains description of non-automatic reproduction in the automatic reproduction file is replaced with a dummy image or displayed as a thumbnail image not apparently capable of being recognized in response to a user request.Type: ApplicationFiled: March 31, 2003Publication date: September 15, 2005Inventors: Junji Masumoto, Yasuaki Sakanishi
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Patent number: 6172711Abstract: A synchronize processing circuit offers a stable supply of synchronizing signal to control circuits in display devices.Type: GrantFiled: February 17, 1998Date of Patent: January 9, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Junji Masumoto, Yasuaki Sakanishi
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Patent number: 5734233Abstract: The invention presents a digital convergence apparatus of high precision, relating to a digital convergence apparatus applicable to a color display device for displaying various image information in various signal formats, and capable of correcting convergence at high precision to correct color deviation of color image, comprising frequency detecting means for detecting frequency of synchronizing signal included in input signal in every input signal entered from outside, digital convergence correction data operating means for operating digital convergence correction data for display means for displaying the input signal as image, corresponding to the frequency detected by the frequency detecting means, using horizontal synchronizing signal or vertical synchronizing signal of the synchronizing signal as timing signal, and pattern signal generating means for generating a convergence adjusting pattern corresponding to the digital convergence correction data from the correction data operating means, wherein the dType: GrantFiled: July 19, 1996Date of Patent: March 31, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Junji Masumoto, Hideyuki Go, Yasuaki Sakanishi