Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Futoshi Nakabe

Shinji Kawano

Eiji Ueda

Hiromi Ebara

Tadakatsu Masaki

Hideo Oozeki

Mami Kuramitsu

Toshitaka Hanaura

Motoji Ohmori

Masahiro Kawasaki

Shizuka Sakamoto

Yuta Kiyosawa

Hideki Fujimori

Yuka Matsushita

A method of moving a rights object according to the present invention includes the following steps. First, a rights object in the memory card is disabled. Then, the rights object is copied from the memory card in response to a retrieval request and installed to a content player. After the installation, a removal request is transmitted to the memory card and the rights object in the memory card is removed (deleted). After transmitting the removal request, second state information is generated and held in the content player to indicate that the removal of the rights object in the memory card has not yet been completed and that the rights object installed in the content player is conditionally enabled. When the memory card receives the removal request, the memory card removes the rights object from the memory card and transmits a removal response for notifying completion of the removal to the content player.

Rights object moving method, content player, and semiconductor device

A mobile terminal apparatus is provided to process a copyright-protected content based on rights that permit the processing of the content. The mobile terminal apparatus includes a priority information selecting unit selecting a piece of priority information associated with one of many processing conditions for the content to be processed, from among pieces of priority information for determining a priority for each of the rights. The mobile terminal apparatus also includes a right selecting unit determining a priority of each of the rights based on the selected piece of priority information, and selecting a right having a highest priority among the rights, according to the determined priority. The mobile terminal apparatus also includes a content processing unit processing the content based on the selected right.

Processing of content with rights associated priority information based on conditions

A semiconductor memory card that has a sufficient storage capacity when an EC application writes data to a storage is provided. A usage area for the EC application in an EEPROMin a TRMis expanded. The expansion is such that a partition generated in a flash memoryoutside the TRMis assigned to the EC application while a partition table is allocated in the internal EEPROM. Because the partition table is in the TRM, only a CPUin the TRMis able to access the generated partition table. Secrecy of stored contents increases because the access to the expanded area is limited to the CPUin the TRM

Semiconductor memory card, and program for controlling the same

The present invention aims at providing a contactless card that enables a reader/writer to identify which card such reader/writer is communicating with in a set of card identification processes and that improves the possibility of protecting the cardholder's privacy. Contactless card () includes: power detection unit (); random number ID generation unit () that determines an identifier that identifies card (), every time power detection unit () detects that electric power has been supplied; ID storage unit () that holds the determined identifier; sending/receiving circuit () that receives a command requesting that the identifier that identifies card () should be sent to reader/writer (), and sending/receiving circuit () sends, to reader/writer (), the determined identifier in the case where the received command is a first-received command, and the held identifier in the case where the received command is a second- or later-received command.

Contactless card

A contactless integrated circuit (IC) card () is comprised of the following: a first antenna coil () and a second antenna coil () for generating an electromotive force by receiving electromagnetic waves from a reader/writer; a first electromotive force measuring unit () and a second electromotive force measuring unit () for respectively measuring the electromotive force generated by each of the antenna coils; an electromotive force comparing unit () for comparing the characteristics of the electromotive forces which are respectively generated by the respective antenna coils and then measured; and an application selecting/executing unit () for selecting one application from a program storing unit () based on the comparison made by the electromotive force comparing unit () and executing the selected application.

Contactless IC card

A semiconductor memory card that has a sufficient storage capacity when an EC application writes data to a storage is provided. A usage area for the EC application in an EPPROMin a TRMis expanded. The expansion is such that a partition generated in a flash memoryoutside the TRMis assigned to the EC application while a partition table is allocated in the internal EEPROM. Because the partition table is in the TRM, only a CPUin the TRMis able to access the generated partition table. Secrecy of stored contents increases because the access to the expanded area is limited to the CPUin the TRM

A data distribution system is provided which generates outputs attribute data about multimedia data in advance and broadcasts the output attribute data together with the multimedia data so that the receiving terminal can grasp the outlines of the entire multimedia data and improve the visibility. A data broadcasting device () generates output attribute data about multimedia data in a data analyzing portion (). The output attribute data exists alone or is embedded in the multimedia data. The multimedia data and the output attribute data are encoded in a protocol encoder () and broadcast from a transmitter (). A receiving terminal device () receives the broadcast data in a tuner () and obtains the multimedia data and output attribute data in a tuner (). When a data display portion () displays the obtained multimedia data, the output attribute data is referred to and information related to the multimedia data is displayed together with the multimedia data. A data analyzing portion () analyzes the multimedia data and extracts the output attribute data embedded therein.

Broadcast data receiving device and method for receiving a plurality of multimedia data

The present invention provides a semiconductor memory card which no longer allows an illegal practice of acquiring contents of a deleted file. Here, when a deletion event is generated, a deletion handler gives a priority to a null-clear operation of a file entry and a FAT for a file to be deleted over a null-clear operation to other constituents of the file. A null-clear operation to a file entity of the file is distributed to a plurality of event handlers including the deletion handler.

Semiconductor memory card and computer readable program

The memory card with a simple configuration is provided with more reliable security. When the memory card receives the access request to the memory from the external connecting device, the access unit accesses the memory based on the access request. At this time, the switch composing the memory card indicates the propriety of the access right to the memory, and the access limitation unit limits that the access unit accesses the memory.

Memory card

A contactless IC card comprises a plurality of random number generation units that are separate from applications to be executed and operable independently to generate a random number for setting a card slot. A random number generation instruction unit designates the random number generation unit to be used for a response from a request from among the plurality of random number generation units. The random number generated by the designated generation unit is used by a slot setting unit to perform a response.

A contactless integrated circuit (IC) card for providing a high-grade random number with a simple configuration. A plurality of provisional random numbers are generated according to a part of calculations to be used for generation of a random number. The plurality of provisional random numbers generated are stored. A random number is generated on the basis of one of the provisional random numbers selected in sequential order.

Contactless IC card, responding method, and program therefor

This invention provides a reader/writer, ID method and program comprising a response-detection unit of detecting normal responses and collisions from IC cards in response to a request; and a response-invalidation unit of sending a response-invalidation command, which is a command not to respond to requests in the future, to IC cards that sent normal responses when the response-detection unit received normal responses from IC cards even though collisions were detected.

IC card reader/writer, identification method and program

The IC card is capable of providing a plurality of services to an external device on one card, and comprises: a interface for the external device; a switch disposed on the IC card and that selects a service; a memory unit recording a information corresponding to a plurality of services and having a plurality areas each storing different information from another areas in security level; a CPU reading/writing information from/to the memory unit based on the service selected by the switch, and provides the selected service to the external device by way of the interface; a security level judgment unit judging the security level on an access status by the application to the memory areas; and a display unit displaying a kind of selected service or a security level of the service.

IC card

A reception display apparatus for receiving data blocks repeatedly transmitted from a broadcasting station at regular intervals and displaying a screen image based on the received data blocks. Each of the data blocks including a data section. Data to be displayed as the screen image is divided into a plurality of data sections. The reception display apparatus comprises: a reception means for receiving the data blocks; a data judgment means for judging whether the data section in each received data block is normal; a storage means for storing every data section judged as normal by the data judgment means without storing data sections judged as abnormal; a condition judgment means for judging, before all data sections to be displayed as the screen image are stored in the storage means, whether a condition for displaying the screen image is satisfied; and a display means for displaying, when the condition judgment means judges that the condition is satisfied, a part of the screen image using data sections currently stored in the storage means.

Reception display apparatus and method for displaying screen partially with certain timing even when all data for the screen has not been received, and computer-readable record medium recording such reception display program

The contactless IC card, the responding method, and the program that control the collision of response to the minimum, wherein the response judgment unit judges whether there is an initial response of the other contactless IC card at a specific time, and the response slot changing unit change the specific time based on the judgment result of the response judgment unit.

Growing community of inventors

Hiroshima, Japan

Futoshi Nakabe