Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Sovereign Peak Ventures, LLC

Yoshiaki Nakanishi

Hisashi Takayama

Osamu Sasaki

Kyoko Kawaguchi

Atsushi Ando

Tetsuo Matsuse

Yoshihiko Takagi

Kazunori Inoue

Tsutomu Sekibe

Kazuo Sakushima

Junko Furuyama

The present invention provides an electronic wallet having a higher level of anonymity, security and convenience, which is capable of efficient electronizing of value information as well as which allows the user to efficiently manage the electronic value information. A presentation card indicating the fixed property of an electronic value is digitally signed by the service provider; a variable property is digitally signed with the private key of that electronic value. A service control, security information, representation control and representation resource are digitally signed by the service provider. These digital signature will be authenticated each time an electronic value object is generated.

Communication terminal and communication method using plural wireless communication schemes

The present invention provides an electronic wallet having a higher level of anonymity, security and convenience, which is capable of efficient electronizing of value information as well as which allows the user to efficiently manage the electronic value information. A presentation cardindicating the fixed property of an electronic value is digitally signed by the service provider; a variable propertyis digitally signed with the private key of that electronic value. A service control, security information, representation controland representation resourceare digitally signed by the service provider. These digital signature will be authenticated each time an electronic value object is generated.

The present invention provides mobile terminals with various types of services such as electronic commerce service, music delivery service, and position information service. User applications required for the electronic commerce service, music delivery service, and position information service are respectively configured as service objects each having a server facility, and further a local gateway is provided, whereby various types of services can be used through a browser.

Information terminal

A memory device includes a memory area directly inaccessible from an electronic device; a secure control section that manages access to this memory area; and a device control section that communicates with the electronic device and transfers a request of the electronic device to the secure control section. The secure control section temporarily delegates, to a device control section, access rights to the memory area if there is write/read request of large capacity data from an authenticated electronic device, and the device control section to which this access rights have been delegated write/read data sent from the electronic device into/from the memory area by burst transfer.

Memory device

A network electronic ticketis provided in an electronic ticket. Start page data, a ticket owner secret key, an electronic ticket possession certificate, and a network service programare provided in the network electronic ticket, the network service programcontrols various types of processing and an electronic ticket storage terminal, and the ticket owner secret keyand the electronic ticket possession certificateare used for authentication processing with an information providing apparatus on a network, whereby it is made possible to connect to the network from the electronic ticket itself and receive information service.

Electronic ticket, electronic wallet, and information terminal

An IC module (secure element with an IC card function) mounted on a portable device executes a process relating to a service, via contactless communication with a service terminal located at a certain place. At least one of the IC module and the portable device judges whether a change, made in state data related to the service and made by the process with a user's check eliminated, satisfies a condition set as requiring an attraction of a user's attention. According to the result of the judgment, a user interface function of the portable device notifies a user.

Portable device, IC module, IC card, and method for using services

An electronic information backup system for safely back up electronic value information about electronic money and electronic ticket through communication in a server so as to exclude unauthorized actions when backup and restoring are performed and for restoring the electronic value information from the backup in case of emergency such as loss of key information. In this system, electronic value information is encrypted, the encrypted electronic value information is registered in an electronic safe server, and the user receives the registration, presents the registration to the server to receive the encrypted electronic value information, and decrypts the electronic value information with decrypting key data. The decrypting key can be kept in another server. The electronic value information and the decrypting key can be kept separately in different servers. It is possible to keep the sequence of number of the cryptogram to serve as the basic the decrypting key in the server, and to generate a decrypting key according to a decrypting key generation algorithm on the terminal side. In case of loss of the decrypting key, the possessor certificate information is verified and then the user can receive the decrypting key from the server.

Electronic information backup system

A file management method, whereby inconsistencies can be prevented between a file recorded in a memory card and the file management information that a terminal apparatus manages, without leaking the information of a file made and stored in an in-card processing system. According to this method, a flash memory accessible from two processing systemsandis provided. First processing systemrequests a reservation of an use area of flash memoryto second processing system, which, upon receiving the request, implements a reservation processing for an area of the memory section and reflects the information of the reserve area upon file management section. First processing systemperforms the processing of writing data into the area reserved by second processing system. Inconsistencies between the file management information that a terminal manages and a file actually recorded into the memory section of a secure card can be prevented. Furthermore, exclusive control can be implemented, whereby there will be no direct access from a terminal to the area used for a card-dedicated file recorded therein by means of processing that takes place inside the card.

File management method, and memory card and terminal apparatus that make use of the method

Contents of each of nodes indicating a plurality of hyper-text documents are prepared and revised in a node managing unit as node information. A connection-relationship between two nodes is established and revised for each of the nodes in a hierarchy structure managing unit as hierarchy structure information, and a hierarchy structure of the nodes is established. In this hierarchy structure, one node ranked to the top level is set as a parent node, and the other nodes are set to child nodes. Thereafter, a plurality of hyper-text documents arranged in the hierarchy structure are prepared from the node information and the hierarchy structure information. Therefore, because the contents of each node is managed in dependence of the preparation of the hierarchy structure, the hyper-text documents arranged in the hierarchy structure can be easily prepared.

Growing community of inventors

Tokyo, Japan

Yoshiaki Nakanishi