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| Number | Title | Issue Date |
| 6182891 | Electronic bankbook, and processing system for financial transaction information using electronic bankbook The object of the present invention is to propose an account bankbook, a money transfer card, a receipt file, and a checkbook utilizing an optical card, an IC card, or a hybrid optical/IC card. On the surface of a resin card base board 1 are formed an IC ... | 02/06/2001 |
| 6052695 | Accurate completion of transaction in cooperative type distributed system and recovery procedure for same The transaction processing throughput of a system in which a plurality of servers cooperatively perform distributed processing of transactions is improved. The servers (1a, 1b, 1c, . . .) are connected to each other through a communication network (2), an... | 04/18/2000 |
| 6029887 | Electronic bankbook and processing system for financial transaction information using electronic bankbook The object of the present invention is to propose an account bankbook, a money transfer card, a receipt file, and a checkbook utilizing an optical card, an IC card, or a hybrid optical/IC card. On the surface of a resin card base board 1 are formed an IC ... | 02/29/2000 |
| 5903553 | Enhanced signal collision detection method in wireless communication system A wireless communication system includes a repeater and a terminal device. The terminal device is connected to the repeater via a wireless communication channel. The terminal device includes a first section for converting a first electric signal into a fi... | 05/11/1999 |
| 5752039 | Executable file difference extraction/update system and executable file difference extraction method A header analyzing unit extracts a header area and each table unit area in each of an old and a new executable files, and calls a difference extracting unit for each area. A segment data associating unit associates a segment data in the old executable fil... | 05/12/1998 |
| 5715462 | Updating and restoration method of system file Operating Systems (OS's) of the same form are stored in first and second memory areas. The executing Operating System in the first memory area is terminated and the Operating System in the second area is initiated. After system files stored in the first a... | 02/03/1998 |
| 5640390 | Wireless communication network system A wireless communication network system includes a communication controller, and a plurality of terminal devices which can communicate with the communication controller by wireless. The communication controller includes a first section for detecting absen... | 06/17/1997 |
| 5353434 | Non-contact IC recording medium An IC recording medium for executing data transmission/reception without contact with a reader/writer. The non-contact IC recording medium comprises a first circuit for detecting a synchronization (sync) signal sent from a reader/writer to generate a firs... | 10/04/1994 |
| 5349463 | Optical radio repeater with signal quality detection An optical radio system includes a host device, an end device, and a repeater. The host device and the end device communicate with each other via the repeater by use of optical radio. The repeater includes a section for receiving a first light signal from... | 09/20/1994 |
| 5289306 | Repeater system A repeater for packet data optical communication between terminal devices includes a first section and a second section. The first section includes a first device for receiving a first optical signal transmitted from a terminal device and for converting t... | 02/22/1994 |
| 5204512 | Device for controlling communication between electronic information cards and host computer to be kept in secret System for controlling communication between electronic information cards, such as IC-cards and a host computer, to be kept in secret. In order to protect the data, various countermeasures have been proposed in which the data are enciphered to be sent and... | 04/20/1993 |
| 5199071 | Modem mode matching method with PBX dial-in A method and apparatus for matching operation modes of modems for connection of terminals to a telephone line, i.e., matching operation forms determined by a communication speed, a coding format, a synchronizing format, etc., on both the calling and answe... | 03/30/1993 |
| 5185798 | IC card system having a function of authenticating destroyed data An IC card includes, in addition to an ordinary data recording processing circuit, an IC chip area including an encrypting circuit, and a magnetic or optical data recording unit mounted thereon. Those items of data at an initialization and final transacti... | 02/09/1993 |
| 5179561 | Totally self-checking checker A totally self-checking checker checks the faults of a logical circuit and also checks faults inside itself. The totally self-checking checker does not require a large number of gate circuits and minimizes the number of test code words that are used. The ... | 01/12/1993 |
| 5153897 | Automatically controlling the operation mode of data circuit terminating equipment in a communication system The operation modes of a plurality of modems in a communication system are matched with each other for connection of digital terminals to an analog telephone line on both the calling and answering sides of the analog telephone line. For example, operation... | 10/06/1992 |
