Patent application number | Description | Published |
20080232176 | Portable Information Terminal - The present invention provides a portable information terminal having installed therein an IC chip. The portable information terminal includes an internal memory disposed within the IC chip driven by using power supplied via a reader/writer, which is impossible to be accessed from outside the IC chip, an external memory driven by using power from an external power source installed outside the IC chip and a data management unit that controls data write processing or data read processing executed to write data into or read data from the internal memory or the external memory in correspondence to the power supply state pertaining to the external memory. The data management unit selects data with a high access frequency or a high priority among a plurality of sets of data recorded in the external memory and records the selected data into the internal memory. | 09-25-2008 |
20080259830 | Wireless communication system, information and communication terminal, portable telephone, reader/writer, communication method and computer program - There is provided a wireless communication system that includes two information communication terminals with built-in IC chips engaged in alternating wireless communication with each other through noncontact communication, wherein one of the information communication terminals includes a reception unit that receives a packet originating from the other information communication terminal, a transmission unit that wirelessly transmits a single packet or a plurality of packets to the other information communication terminal by transmitting all packets that can be transmitted to the other information communication terminal instead of engaging in alternating wireless communication if a specific condition is satisfied and an identifier appending unit that appends a last packet identifier to a packet to be transmitted last from the transmission unit among all the packets that can be transmitted to the other information communication terminal. | 10-23-2008 |
20090168807 | INFORMATION PROCESSING DEVICE, COMMUNICATION METHOD, AND PROGRAM PRODUCT - An information processing device includes a transmission portion that transmits repeatedly, at a specified time interval, one combination packet that is created such that it includes, within a packet that is compatible with one format, a packet that is compatible with another format. It is therefore possible for the information processing device to perform non-contact communication in a plurality of formats without repeatedly transmitting in succession a plurality of copies of the same packet, each copy being compatible with a different format. | 07-02-2009 |
20090282154 | CONTROL SYSTEM AND CONTROL METHOD, METHOD AND APPARATUS FOR PROCESSING INFORMATION, INFORMATION PROCESSING TERMINAL AND METHOD THEREOF, STORAGE MEDIUM, AND PROGRAM - A client (such as a PC, portable telephone, PDA, electrical appliances), to which a device such as a IC card is connected, starts a handshake protocol to request a server to start communication. When communication is established via the handshake protocol, the initiative of communication is transferred to the server, and the state changes into a neutral state. In this neutral state, a control packet including a particular number of messages and a finished message is transmitted from the server to the client. If the client receives the control packet, the client performs a process according to the messages included in the control packet. This makes it possible to remotely control a device via a network in a highly reliable and efficient manner. | 11-12-2009 |
20100155469 | DATA COMMUNICATION SYSTEM, DEVICE FOR EXECUTING IC CARD FUNCTION, CONTROL METHOD FOR THE DEVICE, AND INFORMATION PROCESSING TERMINAL - An information processing terminal defines a data transfer state for permitting a contactless data communication through an IC card and a data not transfer state for not permitting the contactless data communication so that the IC card manages the communication state of the information processing terminal. The IC card can transfer data to the terminal side depending on whether it is in any of the data transfer state and the data not transfer state without depending on the notification from the information processing terminal, synchronization can be easily established, a transfer speed can be increased, and a large amount of data can be transmitted. | 06-24-2010 |
20110114720 | DATA COMMUNICATIONS SYSTEM, INFORMATION PROCESSING TERMINAL, IC CARD, READER/WRITER, AND PROGRAM - Disclosed herein is a data communications system configured to execute data communication between three parties of a reader/writer, an integrated circuit card wirelessly communicable with the reader/writer in a non-contact manner, and an information processing terminal connected to the intergraded circuit card via a wired interface, the data communications system including: the reader/writer having a read/write wireless control block; the integrated circuit card having an integrated circuit card wireless control block; and the information processing terminal having a request acceptance block, a data storage block, and a data transmission block. | 05-19-2011 |
20110254666 | DATA COMMUNICATION SYSTEM, DEVICE FOR EXECUTING IC CARD FUNCTION, CONTROL METHOD FOR THE DEVICE, AND INFORMATION PROCESSING TERMINAL - An information processing terminal defines a data transfer state for permitting a contactless data communication through an IC card and a data not transfer state for not permitting the contactless data communication so that the IC card manages the communication state of the information processing terminal. The IC card can transfer data to the terminal side depending on whether it is in any of the data transfer state and the data not transfer state without depending on the notification from the information processing terminal, synchronization can be easily established, a transfer speed can be increased, and a large amount of data can be transmitted. | 10-20-2011 |
20120042043 | CONTROL SYSTEM AND CONTROL METHOD, METHOD AND APPARATUS FOR PROCESSING INFORMATION, INFORMATION PROCESSING TERMINAL AND METHOD THEREOF, STORAGE MEDIUM, AND PROGRAM - A client (such as a PC, portable telephone, PDA, electrical appliances), to which a device such as a IC card is connected, starts a handshake protocol to request a server to start communication. When communication is established via the handshake protocol, the initiative of communication is transferred to the server, and the state changes into a neutral state. In this neutral state, a control packet including a particular number of messages and a finished message is transmitted from the server to the client. If the client receives the control packet, the client performs a process according to the messages included in the control packet. This makes it possible to remotely control a device via a network in a highly reliable and efficient manner. | 02-16-2012 |