Abstract: 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 EPPROM 3 in a TRM 1 is expanded. The expansion is such that a partition generated in a flash memory 2 outside the TRM 1 is assigned to the EC application while a partition table is allocated in the internal EEPROM 3. Because the partition table is in the TRM 1, only a CPU 7 in the TRM 1 is able to access the generated partition table. Secrecy of stored contents increases because the access to the expanded area is limited to the CPU 7 in the TRM 1.

Abstract: 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 (1) generates output attribute data about multimedia data in a data analyzing portion (13). 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 (14) and broadcast from a transmitter (15). A receiving terminal device (2) receives the broadcast data in a tuner (21) and obtains the multimedia data and output attribute data in a tuner (21). When a data display portion (26) 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.

Abstract: A memory control device according to an example of the invention comprises an allocation section allocating a plurality of memory regions of a memory module, an available space storage section storing data in available space of a first memory region that is one of the plurality of memory regions and, when no more space becomes available in the first memory region, store data in available space of a following second memory region, and a copying section copying a plurality of items of to-be-copied data that is stored in the first memory region but not in the second memory region to the second memory region after no more space becomes available in the first memory region in such a manner that a copying operation is divided into a plurality of times.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A semiconductor memory card that has a sufficient storage capacity when an electronic commerce (EC) application writes data to a storage is provided. A usage area for the EC application in EEPROM 3 in a tamper resistant module (TRM) 1 is expanded. The expansion is such that a partition generated in a flash memory 2 outside the TRM 1 is assigned to the EC application while a partition table is allocated in the internal EEPROM 3. Because the partition table is in the TRM 1, only a CPU 7 in the TRM 1 is able to access the generated partition table. Secrecy of stored contents increases because the access to the expanded area is limited to the CPU in the TRM 1.

Abstract: 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.

Abstract: 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.

Abstract: An IC card provided with a contact-type interface and a non-contact-type interface as the communication interface, and other electronic devices. The IC card identifies the kind of communication data communicated with an external device such as reader-writer, and decides on a communication interface that follows the identified communication data. Then, it is judged whether to switch the communication interface used communication for with the external device between the contact-type interface and the non-contact-type interface. And if it is decided to switch, the communication interface used for communication with the external device is switched.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The invention has an object to Provide an illegal access monitoring apparatus which prevents a predetermined memory area from illegal accessing by an application, and also prevents a reverse engineering, an IC card, and an illegal access monitoring method. The invention provides an illegal access monitoring apparatus of which an access monitoring means monitors an access to a predetermined memory area and of which a detection signal generating means generates an illegality detecting signal showing a presence of the illegal access on the basis of the monitoring result by the access monitoring means and illegal information, an IC card, and an illegal access monitoring method.

Abstract: An IC card provided with a contact-type interface and a non-contact-type interface as the communication interface, and other electronic devices. The IC card identifies the kind of communication data communicated with an external device such as reader-writer, and decides on a communication interface that follows the identified communication data. Then, it is judged whether to switch the communication interface used communication for with the external device between the contact-type interface and the non-contact-type interface. And if it is decided to switch, the communication interface used for communication with the external device is switched.

Abstract: Provision of a high-grade random number by means of a simple configuration enables to provide a contactless IC card, a responding method, and a program therefore; those can control the collision of the initial responses in minimum. The contactless IC card, the responding method and the program comprise the provisional random number generating means for generating a provisional random number according to a part of operations to be used for the generation of a random number, the provisional random number storage means for storing the provisional random number generated by the provisional random number storage means, and the random number generating means for generating a random number on the basis of the provisional random number at receiving the request from the reader/writer.