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1.发明专利
公开(公告)号：ES2346134T3
公开(公告)日：2010-10-11
申请号：ES03257604
申请日：2003-12-03
Applicant: SONY CORP
Inventor： FUJII KUNIHIDE , MORITA TADASHI , ARISAWA SHIGERU , TAKAYAMA YOSHIHISA
Abstract: Un aparato de comunicación (1) para enviar y recibir datos mediante ondas electromagnéticas, que comprende: medios de generación (18) de ondas electromagnéticas, destinados a formar un campo de radiofrecuencia mediante la generación de ondas electromagnéticas; medios de modulación (19), destinados a enviar datos a una de una pluralidad de velocidades de transmisión mediante la modulación de ondas electromagnéticas; y medios de desmodulación (13), destinados a desmodular ondas electromagnéticas con el fin de captar o adquirir datos enviados desde otro aparato (2) a una de una pluralidad de velocidades de transmisión; caracterizado por que comprende, adicionalmente: un detector (23), configurado para llevar a cabo un procedimiento de detección para detectar un campo de radiofrecuencia dentro de un primer periodo de tiempo antes de que el aparato de comunicación (1) inicie una comunicación con otro aparato de comunicación (2), y dentro de un segundo periodo de tiempo después de que el aparato de comunicación (1) haya recibido una petición procedente de dicho otro aparato de comunicación (2) y antes de que el aparato de comunicación (1) responda a la petición de dicho otro aparato de comunicación (2), de tal manera que el primer periodo de tiempo se define por TIDT + nxTRFW, donde TIDT es un primer tiempo de retardo inicial, n es un primer número aleatorio y TRFW es un primer tiempo de espera de radiofrecuencia, y dicho aparato de comunicación (1) está configurado para generar un primer campo de radiofrecuencia cuando no se detecta un campo de radiofrecuencia por el detector (23) dentro del primer periodo de tiempo, el segundo periodo de tiempo se define por TADT +n''xTRFW, donde TADT es un segundo tiempo de retardo activo, n'' es un segundo número aleatorio; TIDT + nxTRFW es mayor que TADT +n''xTRFW, y dicho aparato de comunicación (1) está configurado para generar un segundo campo de radiofrecuencia cuando no se detecta un campo de radiofrecuencia por el detector (23) dentro del segundo periodo de tiempo, de tal modo que el aparato de comunicación (1) está configurado para enviar datos con el fin de solicitar una identificación ID para identificar el otro aparato (2) mediante la modulación de dicho primer campo de radiofrecuencia, y cesar de generar dicho primer campo de radiofrecuencia cuando se han enviado dichos datos para solicitar una identificación ID, y para captar o adquirir la ID enviada desde el otro aparato (2) en contestación a la petición de ID, de tal modo que la ID enviada desde el otro aparato (2) incluye un número aleatorio generado en el otro aparato (2); de tal forma que el aparato de comunicación (1) está configurado de manera que: los datos que incluyen la ID del otro aparato (2) se envían como datos para el otro aparato (2) mediante la modulación de dicho segundo campo de radiofrecuencia tras haber adquirido la ID del otro aparato (2), y los datos para solicitar la ID se envían de nuevo si la ID del otro aparato (2) no se ha captado adecuadamente.
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公开(公告)号：SG134287A1
公开(公告)日：2007-08-29
申请号：SG2007005895
申请日：2007-01-25
Applicant: SONY CORP
Inventor： TAKAYAMA YOSHIHISA
Abstract: A communication device for performing near field communication, includes: a near field communication device having a near field communication section for performing near field communication in either one of an active mode and a passive mode, and an interface section for supplying the near field communication section with data from a data processing device for processing data targeted by communication of the near field communication section, and supplying the data processing device with data from the near field communication section; and one or more of the data processing devices connected to the interface section by one output bus on which the data output by the interface section is transmitted, and one input bus on which the data input to the interface section is transmitted, wherein the data processing device includes bus right management means.
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公开(公告)号：CA2509617A1
公开(公告)日：2004-07-01
申请号：CA2509617
申请日：2003-12-08
Applicant: SONY CORP
Inventor： TAKAYAMA YOSHIHISA , MORITA TADASHI , ARISAWA SHIGERU , FUJII KUNIHIDE
Abstract: A communication system, communication apparatus and communication method for easily solving a problem of "hidden terminal". Communication apparatuses (1, 3) determine whether or not there has been detected any electromagnetic wave having a level that is equal to or greater than TH1 of carrier output suppression decision magnetic flux density, and if not, they begin to output electromagnetic waves. On the other hand, in order to acquire data via electromagnetic waves, a communication apparatus (2) requires an electromagnetic wave having a level that is equal to or greater than TH2 of operation limit carrier magnetic flux density that is greater than TH1 of carrier output suppression decision magnetic flux density. The present invention is applicable to, for example, IC (Integrated Circuit) card system s and the like.
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4.发明公开
公开(公告)号：EP1845632A4
公开(公告)日：2012-12-12
申请号：EP06712475
申请日：2006-01-27
Applicant: SONY CORP
Inventor： TAKAYAMA YOSHIHISA
CPC classification number: H04B5/0031 , H04B5/0037 , H04B5/0056 , H04B5/02 , H04W8/18 , H04W88/02
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公开(公告)号：EP1770900A4
公开(公告)日：2013-09-11
申请号：EP05765153
申请日：2005-06-27
Applicant: SONY CORP
Inventor： TAKAYAMA YOSHIHISA , MORITA TADASHI
CPC classification number: H04L9/0825 , H04L9/0838 , H04L9/14 , H04L63/045 , H04L63/0492 , H04L63/18 , H04L2209/805 , H04W76/023
Abstract: A communication apparatus capable of easily identifying a communication partner and securely sharing a session key between the communication apparatus and the communication partner even if the communication apparatus has a processing power that is not so high includes a short-range active communication unit 101 transmitting an inquiry signal to a short-range external communication apparatus by electromagnetic waves and waiting for a response to the inquiry signal; a long-range communication unit 104 capable of communication by the electromagnetic waves in a range wider than the communication area of the short-range active communication means; a switching unit 111 switching to either the short-range active communication unit or the long-range communication unit; and an asymmetric key generator 102 generating a pair of an encryption key and a decryption key corresponding to the encryption key. The communication apparatus is characterized by using the decryption key to decrypt an encrypted session key transmitted from the external communication apparatus and transmitting to the external communication apparatus a communication switching request signal to request the switching to the long-range communication unit and communication by using the long-range communication unit.
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Patent Agency Ranking6.发明公开COMMUNICATION SYSTEM, COMMUNICATION DEVICE, COMMUNICATION METHOD, AND PROGRAM 审中-公开通信系统，通信装置，通信方法和程序
公开(公告)号：EP1633104A4
公开(公告)日：2011-11-02
申请号：EP04736125
申请日：2004-06-04
Applicant: SONY CORP
Inventor： TAKAYAMA YOSHIHISA , KUSAKABE SUSUMU
CPC classification number: H04B5/0031 , H04W28/18 , H04W36/14 , H04W84/18 , H04W88/06
Abstract: The present invention relates to a communication system, a communication apparatus, and a communication method as well as to a program for acquiring the advantages of a plurality of communication protocols. An NFC communication is executed between an NFC communication unit 51 of a communication apparatus 1 and an NFC communication unit 61 of a communication apparatus 2, thereby it is recognized that a communication (BT communication) by Bluetooth (registered trademark) is possible, and further the BD addresses of a BT communication units 52 and 62 are exchanged as communication information necessary to the BT communication. Then, in the communication apparatuses 1 and 2, the NFC communication between the NFC communication units 51 and 61 is switched (overhanded) to the BT communication between BT communication units 52 and 62, and the BT communication is executed based on the BD addresses of the B-T communication units 52 and 62.
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公开(公告)号：SG11201908180UA
公开(公告)日：2019-10-30
申请号：SG11201908180U
申请日：2018-03-30
Applicant: SONY CORP
Inventor： TAKAYAMA YOSHIHISA
Abstract: CONTACTLESS COMMUNICATION DEVICE AND COMMUNICATION SYSTEM The present technology relates to a contactless 5 communication device and communication system capable of achieving further reduction of communication processing time. A reader/writer includes a controller that transmits an advanced message specifying a processing target and a 10 processing content as parameters to a contactless IC card on the other side by contactless communication, and causes a contactless IC card to execute the processing content using data as the processing target. The contactless IC card includes a controller that receives 15 an advanced message specifying a processing target and a processing content as parameters from the reader/writer on the other side by contactless communication, and executes the processing content using data as the processing target. The present technology can be applied 20 to a contactless communication system or the like that performs contactless communication, for example. Fig.1 25
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公开(公告)号：DE60333621D1
公开(公告)日：2010-09-16
申请号：DE60333621
申请日：2003-12-03
Applicant: SONY CORP
Inventor： FUJII KUNIHIDE , MORITA TADASHI , ARISAWA SHIGERU , TAKAYAMA YOSHIHISA
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公开(公告)号：HK1114706A1
公开(公告)日：2008-11-07
申请号：HK08104485
申请日：2008-04-23
Applicant: SONY CORP
Inventor： TAKAYAMA YOSHIHISA
Abstract: The present invention relates to a communication apparatus capable of using near field communication from various protocols, a communication method for use therewith, and a program for use therewith. NFC communication apparatuses 1 to 3 capsulize an LLC packet of an LLC layer of a data link layer in an MAC packet of an MAC layer, capsulize the MAC packet in a physical layer packet of a physical layer, and transmit and receive the packet. In that case, the maximum length of the LLC packet is limited so as to be smaller than or equal to a length that is determined on the basis of the maximum length of the physical layer packet and the maximum number of MAC packets that can be transmitted continuously from the MAC layer to the LLC layer without making a response. The present invention can be applied to, for example, an IC card system or the like.
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公开(公告)号：DE69836849T2
公开(公告)日：2007-10-18
申请号：DE69836849
申请日：1998-09-11
Applicant: SONY CORP
Inventor： TAKAYAMA YOSHIHISA
Abstract: A tape streaming drive capable of unloading and loading a tape in a shorter time. To this end, the tape streaming drive includes a motor driving and servo circuit 150 having the running controlling function of controlling the running of a magnetic tape, and a system controller 161 having the controlling function of controlling the motor driving and servo circuit 150 for moving the magnetic tape to an ejection area provided in the last position in the partition directly previous to the current partition.
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