Patents by Inventor Itaru Maekawa
Itaru Maekawa 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: 9025513Abstract: In the game device, a period coefficient acquirer 102 extracts a first period coefficient as a factor for determining a communication period from game data. A communication manager 108 manages the status of connection with at least one communication terminal and a period coefficient deriving unit 106 derives a second period coefficient as a factor for determining a communication period from the status of connection. A period determiner 104 determines a communication period for communication with a game controller based on the first period coefficient and the second period coefficient. A correspondence table holder 120 retains a correspondence table of the status of connection and the second period coefficient, and a period coefficient deriving unit 106 refers to the correspondence table and derives the second period coefficient.Type: GrantFiled: July 2, 2007Date of Patent: May 5, 2015Assignees: Sony Corporation, Sony Computer Entertainment Inc.Inventor: Itaru Maekawa
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Patent number: 8934468Abstract: Each station makes a transition to a power saving state autonomously in response to the reception of signals from the other stations in the same group and the transmission of its own signal. Each station sets its transmission timing such that it does not overlap the transmission timing of the other stations, by referring to data elements included in a beacon signal. The transmission timing in the stations is determined for each transmission.Type: GrantFiled: April 14, 2005Date of Patent: January 13, 2015Assignees: Sony Corporation, Sony Computer Entertainment Inc.Inventor: Itaru Maekawa
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Patent number: 8819430Abstract: There is provided a communication device, which includes a physical layer which performs close-range one-to-one communication with a device B through electric field coupling or magnetic field coupling, an authentication information changing unit which dynamically changes device information for mutual authentication according to a type of data selected on an application, a protocol selection unit which selects one protocol that can be utilized by the communication device and the device B, a start information transmission unit which transmits the device information and information showing the selected protocol to the device B in order to make the device B start an application corresponding to the type of data and the selected protocol, and a protocol conversion unit which converts a protocol utilized by the application into a protocol utilized by the physical layer in order to transfer data between the applications of the communication device and the device B.Type: GrantFiled: November 22, 2010Date of Patent: August 26, 2014Assignee: Sony CorporationInventors: Akihiro Ihori, Itaru Maekawa
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Patent number: 8725074Abstract: A communication device of the present invention includes a physical layer for performing close-range one-to-one communication with a device of a communication counterpart by electric field coupling or magnetic field coupling; one or a plurality of PCL Emulations for converting a protocol of a higher level application to a protocol for communicating at the physical layer; and a PCL common for performing negotiation with the device of the communication counterpart without the higher level application started after the connection with the communication counterpart is established or at the same time as the connection establishment to select one PCL Emulation.Type: GrantFiled: August 19, 2009Date of Patent: May 13, 2014Assignee: Sony CorporationInventors: Tsutomu Ito, Itaru Maekawa, Hidemasa Yoshida, Akihiro Ihori, Shinsuke Tashiro
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Patent number: 8619666Abstract: A wireless communications system for performing data communications between a data transmission side wireless communications device and a data receiving side wireless communications device. In the system, random back-off access control is performed until a connection is established between the data transmission side wireless communications device and the data receiving side wireless communications device. Then, after the connection is established, asymmetric IFS access control is performed.Type: GrantFiled: September 17, 2007Date of Patent: December 31, 2013Assignee: Sony CorporationInventors: Fumihiro Nishiyama, Yasunori Maeshima, Satoshi Konya, Nobuo Namekawa, Tomonari Yamagata, Yuhei Hashimoto, Itaru Maekawa
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Patent number: 8533370Abstract: There is provided a radio communication device including: a host connection interface which is connected to a host apparatus and receives commands input from the host apparatus; a radio communication interface which performs radio communication with another radio communication device; and a controlling unit which controls operation of the host connection interface and the radio communication interface, wherein the controlling unit controls the host connection interface to output device information indicating that the device itself is a peripheral device capable of accessing a storage medium to the host apparatus in response to a command indicating inquiry about information regarding the device.Type: GrantFiled: October 21, 2010Date of Patent: September 10, 2013Assignee: Sony CorporationInventors: Minoru Tanaka, Itaru Maekawa, Hidemasa Yoshida
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Patent number: 8423041Abstract: A game apparatus according to a preferred embodiment includes a first wireless communication module and a second wireless communication module. The first wireless communication module performs communication utilizing Bluetooth protocols, whereas the second wireless communication module performs communication utilizing IEEE protocols. The first radio communication module and the second radio module have a common reference communication cycle, and each communicates in communication cycles of an integral multiple of the reference communication cycle. A control unit sets offset time between the start time of a communication by the first wireless communication module until the start time of a communication by the second wireless communication module. In so doing, the control unit monitors the communication load of the first wireless communication module and sets the offset time based on a monitored result.Type: GrantFiled: March 23, 2012Date of Patent: April 16, 2013Assignees: Sony Computer Entertainment Inc., Sony Corporation, Sony Electronics Inc.Inventors: Itaru Maekawa, Andrew Xavier Estrada
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Patent number: 8331859Abstract: A communication apparatus includes: a communication circuit section that processes a high-frequency signal for transferring data; a transfer path for the signal connected to the circuit section; a ground; a coupling electrode supported opposite and away in height from the ground; a resonance section that increases a current flowing into the electrode via the path; and a main body housing that assumes a plurality of placement postures and houses the respective components, one end surface of the housing serving as a reading surface in which the electrode is disposed offset from a center of the reading surface. An infinitesimal dipole is formed from a line segment connecting between a center of a charge in the electrode and a center of an image charge in the ground. The signal is transferred toward a communication partner disposed oppositely to form an angle of substantially 0 degrees with a direction of the dipole.Type: GrantFiled: April 9, 2010Date of Patent: December 11, 2012Assignee: Sony CorporationInventor: Itaru Maekawa
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Publication number: 20120177024Abstract: A game apparatus according to a preferred embodiment includes a first wireless communication module and a second wireless communication module. The first wireless communication module performs communication utilizing Bluetooth protocols, whereas the second wireless communication module performs communication utilizing IEEE protocols. The first radio communication module and the second radio module have a common reference communication cycle, and each communicates in communication cycles of an integral multiple of the reference communication cycle. A control unit sets offset time between the start time of a communication by the first wireless communication module until the start time of a communication by the second wireless communication module. In so doing, the control unit monitors the communication load of the first wireless communication module and sets the offset time based on a monitored result.Type: ApplicationFiled: March 23, 2012Publication date: July 12, 2012Applicant: SONY COMPUTER ENTERTAINMENT INC.Inventors: Itaru Maekawa, Andrew Xavier Estrada
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Patent number: 8180363Abstract: A game apparatus according to a preferred embodiment includes a first wireless communication module and a second wireless communication module. The first wireless communication module performs communication utilizing Bluetooth protocols, whereas the second wireless communication module performs communication utilizing IEEE protocols. The first radio communication module and the second radio module have a common reference communication cycle, and each communicates in communication cycles of an integral multiple of the reference communication cycle. A control unit sets offset time between the start time of a communication by the first wireless communication module until the start time of a communication by the second wireless communication module. In so doing, the control unit monitors the communication load of the first wireless communication module and sets the offset time based on a monitored result.Type: GrantFiled: January 6, 2006Date of Patent: May 15, 2012Assignees: Sony Computer Entertainment Inc., Sony Corporation, Sony Electronics Inc.Inventors: Itaru Maekawa, Andrew Xavier Estrada
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Publication number: 20110131631Abstract: There is provided a communication device, which includes a physical layer which performs close-range one-to-one communication with a device B through electric field coupling or magnetic field coupling, an authentication information changing unit which dynamically changes device information for mutual authentication according to a type of data selected on an application, a protocol selection unit which selects one protocol that can be utilized by the communication device and the device B, a start information transmission unit which transmits the device information and information showing the selected protocol to the device B in order to make the device B start an application corresponding to the type of data and the selected protocol, and a protocol conversion unit which converts a protocol utilized by the application into a protocol utilized by the physical layer in order to transfer data between the applications of the communication device and the device B.Type: ApplicationFiled: November 22, 2010Publication date: June 2, 2011Applicant: Sony CorporationInventors: Akihiro Ihori, Itaru Maekawa
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Patent number: 7949376Abstract: Each station makes a transition to a power saving state autonomously in response to the reception of signals from the other stations in the same group and the transmission of its own signal. Each station sets its transmission timing such that it does not overlap the transmission timing of the other stations, by referring to data elements included in a beacon signal. The transmission timing in the stations is determined for each transmission.Type: GrantFiled: April 14, 2005Date of Patent: May 24, 2011Assignee: Sony Computer Entertainment Inc.Inventor: Itaru Maekawa
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Publication number: 20110106984Abstract: There is provided a radio communication device including: a host connection interface which is connected to a host apparatus and receives commands input from the host apparatus; a radio communication interface which performs radio communication with another radio communication device; and a controlling unit which controls operation of the host connection interface and the radio communication interface, wherein the controlling unit controls the host connection interface to output device information indicating that the device itself is a peripheral device capable of accessing a storage medium to the host apparatus in response to a command indicating inquiry about information regarding the device.Type: ApplicationFiled: October 21, 2010Publication date: May 5, 2011Applicant: Sony CorporationInventors: Minoru Tanaka, Itaru Maekawa, Hidemasa Yoshida
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Publication number: 20100267336Abstract: A communication apparatus includes: a communication circuit section that processes a high-frequency signal for transferring data; a transfer path for the signal connected to the circuit section; a ground; a coupling electrode supported opposite and away in height from the ground; a resonance section that increases a current flowing into the electrode via the path; and a main body housing that assumes a plurality of placement postures and houses the respective components, one end surface of the housing serving as a reading surface in which the electrode is disposed offset from a center of the reading surface. An infinitesimal dipole is formed from a line segment connecting between a center of a charge in the electrode and a center of an image charge in the ground. The signal is transferred toward a communication partner disposed oppositely to form an angle of substantially 0 degrees with a direction of the dipole.Type: ApplicationFiled: April 9, 2010Publication date: October 21, 2010Inventor: Itaru MAEKAWA
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Patent number: 7697896Abstract: A game apparatus according to a preferred embodiment includes a first wireless communication module and a second wireless communication module. The first wireless communication module performs communication utilizing Bluetooth protocols, whereas the second wireless communication module performs communication utilizing IEEE802.11 protocols. The first radio communication module and the second radio module have a common reference communication cycle, and each communicates in communication cycles of an integral multiple of a reference communication cycle. A control unit sets offset time between from the start time of a communication by the first wireless communication module until the start time of a communication by the second wireless communication module. In so doing, the control unit monitors the communication load of the first wireless communication module and sets the offset time based on a monitored result.Type: GrantFiled: March 10, 2006Date of Patent: April 13, 2010Assignee: Sony Computer Entertainment Inc.Inventors: Itaru Maekawa, Jun Nishihara
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Publication number: 20100048130Abstract: A communication device of the present invention includes a physical layer for performing close-range one-to-one communication with a device of a communication counterpart by electric field coupling or magnetic field coupling; one or a plurality of PCL Emulations for converting a protocol of a higher level application to a protocol for communicating at the physical layer; and a PCL common for performing negotiation with the device of the communication counterpart without the higher level application started after the connection with the communication counterpart is established or at the same time as the connection establishment to select one PCL Emulation.Type: ApplicationFiled: August 19, 2009Publication date: February 25, 2010Applicant: Sony CorporationInventors: Tsutomu ITO, Itaru Maekawa, Hidemasa Yoshida, Akihiro Ihori, Shinsuke Tashiro
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Patent number: 7535881Abstract: A communication terminal is provided with a transmission control unit for controlling a transmission mode in which a broadcast signal is transmitted a plurality of times, and a reception control unit for controlling a reception mode in which the broadcast signal transmitted from another communication terminal is monitored. The transmission control unit and the reception control unit execute the transmission mode and the reception mode cyclically and alternately. To achieve power saving, time reserved for execution of the transmission mode in a cycle is set to be longer than time reserved for execution of the reception mode in the cycle.Type: GrantFiled: July 29, 2005Date of Patent: May 19, 2009Assignee: Sony Computer Entertainment Inc.Inventors: Itaru Maekawa, Kazushige Taniguchi
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Publication number: 20080123582Abstract: In the game device, a period coefficient acquirer 102 extracts a first period coefficient as a factor for determining a communication period from game data. A communication manager 108 manages the status of connection with at least one communication terminal and a period coefficient deriving unit 106 derives a second period coefficient as a factor for determining a communication period from the status of connection. A period determiner 104 determines a communication period for communication with a game controller based on the first period coefficient and the second period coefficient. A correspondence table holder 120 retains a correspondence table of the status of connection and the second period coefficient, and a period coefficient deriving unit 106 refers to the correspondence table and derives the second period coefficient.Type: ApplicationFiled: July 2, 2007Publication date: May 29, 2008Applicant: SONY COMPUTER ENTERTAINMENT INC.Inventor: Itaru MAEKAWA
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Publication number: 20080095089Abstract: A wireless communications system for performing data communications between a data transmission side wireless communications device and a data receiving side wireless communications device. In the system, random back-off access control is performed until a connection is established between the data transmission side wireless communications device and the data receiving side wireless communications device. Then, after the connection is established, asymmetric IFS access control is performed.Type: ApplicationFiled: September 17, 2007Publication date: April 24, 2008Inventors: Fumihiro Nishiyama, Yasunori Maeshima, Satoshi Konya, Nobuo Namekawa, Tomonari Yamagata, Yuhei Hashimoto, Itaru Maekawa
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Publication number: 20070111790Abstract: A game apparatus according to a preferred embodiment includes a first wireless communication module and a second wireless communication module. The first wireless communication module performs communication utilizing Bluetooth protocols, whereas the second wireless communication module performs communication utilizing IEEE protocols. The first radio communication module and the second radio module have a common reference communication cycle, and each communicates in communication cycles of an integral multiple of the reference communication cycle. A control unit sets offset time between the start time of a communication by the first wireless communication module until the start time of a communication by the second wireless communication module. In so doing, the control unit monitors the communication load of the first wireless communication module and sets the offset time based on a monitored result.Type: ApplicationFiled: January 6, 2006Publication date: May 17, 2007Inventors: Itaru Maekawa, Andrew Estrada