Abstract: A compact and highly efficient hybrid magnetic refrigerator includes a hybrid refrigerating apparatus wherein an evaporator of a vapor compression refrigeration cycle and a heat exchanger of a magnetic refrigeration cycle are thermally connected. The magnetic refrigeration cycle is provided with a magnetic refrigeration unit in which a magnetic substance dissipates and absorbs heat according to the increase and decrease of a magnetic field in order to heat and cool a refrigerant circulating in its vicinity. The heated refrigerant is cooled by the evaporator of the vapor compression refrigeration cycle and the cooled refrigerant is supplied to the heat exchanger cooling the outside air.

Abstract: User keys make sensitive management of users which are different per type of services. A SD card SDq may store plural kinds of service user keys Kus which are different per type of services. The service user key Kus is encrypted by a medium unique key Kmu and is stored in a protection area 3. The protection area 3 stores a master user key Kumst encrypted by the medium unique key Kmu, as well as the service user keys Kus. The master user key Kumst is a key used for encrypting the service user key Kus when obtaining a service user key Kus.

Abstract: Each embodiment of this invention implements step-by-step and empirical authentication of devices upon digital authentication among a plurality of devices. Each of a plurality of authentication devices of each embodiment can unidirectionally generate a hash value of a low experience rank from a hash value of a high experience rank, and receives a set of high experience rank and hash value in accordance with an experience. Upon receiving a certification request of the experience rank from another authentication device, the authentication device transmits a corresponding hash value to the authentication device as a request source. Upon sending a certification request of an experience rank to another authentication device, the authentication device verifies a hash value obtained from the other authentication device on the basis of a self hash value. In this way, the authentication devices authenticate each other's experience ranks.

Abstract: A biological material detection apparatus which detects a charged biological material such as a gene or protein contained in a sample liquid is disclosed. A biological material detection element includes a substrate, at least one first electrode formed on the substrate, and a plurality of second electrodes which are arrayed at predetermined intervals around the first electrode on the substrate along the circumferential direction and to which ligands that react with predetermined biological materials are respectively immobilized. A sample liquid is introduced toward the first electrode on the substrate. The introduced sample liquid is moved radially toward the second electrodes by electrical control.

Abstract: When settling a purchase price, a troublesome input is omitted and an input mistake or the like is prevented. The content data delivery server 42 makes the QR code generation unit 49 generate a QR code including encoded URL data of the settlement unit 70, a medium identifier data IDm and so forth. The QR code is displayed on a display 26. After imaging the displayed QR code by a CCD camera 58, the QR code is analyzed and a data is read therefrom. It is transmitted to a settlement server 71 and a settlement request is performed.

Abstract: Data in a storage medium not using an encryption double key scheme is transferred to a storage medium using an encryption double key scheme. A title key Kt encrypting content data C in an SD audio card SDa is further encrypted by a user key Kua generated in a key generating unit 23e, and is stored in a user data area 4 in an SD card SDq. The generated user key Kua is encrypted by a medium unique key Kmuq in the SD card SDq, and is stored in a protection area 3.

Abstract: There is provided a content data reproducing system that allows, in a user terminal adapted to be able to read a recording medium storing a content data encrypted with a predetermined encrypted key data, the content data to be reproduced after a CM data is reproduced. The system includes a CM data transmission portion that transmits the CM data to the user terminal in response to a request from the user terminal. When the sensing portion senses that the reproducing of the CM data has been completed in the user terminal, a permission portion permits the user terminal to use the encrypted key data to decrypt and reproducing the content data.

Abstract: In a heat transporting apparatus, a cylinder is filled with a refrigerant and pistons are arranged in the cylinder, which compress and expand the refrigerant in the cylinder. A magnet unit is movably provided around the cylinder to apply a magnetic field to the cylinder, which is alternately increased and decreased in accordance with a movement of the magnet unit. A thermal accumulator is received in the cylinder, which produces heat depending on one of the increasing and decreasing of the magnetic field at the compression of the refrigerant, and absorbs heat depending on the other of the increasing and decreasing of the magnetic field at the expansion of the refrigerant. Heat exchangers are located in the cylinder, which radiates the heat from the refrigerant and thermal accumulator to an exterior of the apparatus, and absorbs external heat and transfers the heat to the refrigerant and thermal accumulator.

Abstract: In a magnetic refrigerator, a permanent magnet unit shaped like a hub is so rotated as to face an annular magnetic unit having magnetic blocks arranged in a circumferential direction. The permanent magnet unit is also arranged to be concentric with a magnetic unit and has an inner and outer diameters substantially equal to those of the magnetic unit. Each of the magnetic blocks has positive and negative magnetic segments alternately arranged with predetermined gaps. As the permanent magnet unit rotates, heat conducting members are inserted into and removed from the gaps between the magnetic segments of the magnetic block. This allows heat generated from the magnetic segments to conduct in one direction.

Abstract: A method of delivering content data is provided that makes content data able to be reproduced at a user terminal by delivering content key data necessary to decrypt the content data. Specifically, portable storage media storing in advance the content data encrypted with the content key data is connected to the user terminal having a unique terminal ID. User key data that is provided with a predetermined expiration date and is necessary to encrypt the content key data is transmitted from a server to the user terminal. The user key data is stored in an internal memory in the user terminal in such a way that the user key data is unable to be read out of the internal memory. The content key data necessary to decrypt the content data stored in the portable storage media is encrypted with the user key data, and the encrypted content key data is stored in the user terminal or the portable storage media.

Abstract: A user terminal converts stored contents of an SD card to contain second encrypted content key data equivalent to an encrypted title key of SD Audio, and encrypted content equivalent to encrypted content of the SD Audio. Accordingly, compatibility can be realized between an encryption dual key system as a first encryption system and an encryption (single) key system as a second encryption system.

Abstract: The data delivery system is adapted to be able to communicate via a network with a data communication terminal adapted to be able to access first portable storage media that stores content data to be able to be ripped to digital recording equipment and second portable storage media adapted to be able to store content key data with which the digital recording equipment encrypts and stores the content data. The system generates different content key data for each set of content data and stores the content key data in a content key database.

Abstract: A biological material detection apparatus which detects a charged biological material such as a gene or protein contained in a sample liquid is disclosed. A biological material detection element includes a substrate, at least one first electrode formed on the substrate, and a plurality of second electrodes which are arrayed at predetermined intervals around the first electrode on the substrate along the circumferential direction and to which ligands that react with predetermined biological materials are respectively immobilized. A sample liquid is introduced toward the first electrode on the substrate. The introduced sample liquid is moved radially toward the second electrodes by electrical control.

Abstract: There is provided a content data delivery system including a playback equipment that is adapted to be able to decrypt a content data encrypted with a content key data and to play back the decrypted content data and that holds an equipment ID to identify itself; a handheld device that is adapted to be able to communicate data with the playback equipment and holds a handheld device ID to identify itself; and a server that delivers the content key data to the playback equipment via the handheld device. The server generates a first random number and transmits the first random number to the playback equipment via the handheld device. The playback equipment generates a second random number. The handheld device transmits to the server the equipment ID, handheld device ID, and second random number to provide a request for delivery of the content key data. The server and playback equipment use the first random number and second random number as a basis to generate a session key.

Abstract: A handheld device is configured to be connectable to a storage media that holds a unique media identifier and holds a content key data used to decrypt an encrypted content data. A content data delivery system is provided that is configured to be able to deliver various data to the handheld device and to make a content data available to the handheld device. The system includes a member-registration information database that holds member-registration information including a data pair of a handheld-device identifier related to the relevant handheld device and the relevant media identifier. The media identifier held by the storage media is verified with the member-registration information database.

Abstract: First and second stationary members are arranged to face each other, and a movable member is arranged between these first and second stationary members so as to be movable in a predetermined direction. An electrode groups including a plurality of stationary electrodes having the same width and sequentially arranged at substantially the same pitch in a predetermined direction is formed on each of these stationary electrodes. Also, a movable electrode having a width in the predetermined direction, which is larger than the width of each of the stationary electrodes constituting the electrode group, is arranged on the movable member. First and second voltage signal patterns differing from each other in the timing are applied to the stationary electrodes constituting the electrode group. When the movable member is driven in the predetermined direction by one of the first and second voltage signal patterns, the voltage signal pattern serving to drive the movable member is determined as the driving signal.

Abstract: One aspect of the present invention is to provide a login system and method which can be easily applied to corporate members, and which can prevent unauthorized use even if authentication information is copied. Because of a configuration in which login is carried out by using service right data for each medium identifier of a secure storage medium, unless a dishonest person uses the secure storage medium, it is impossible to log in even if the dishonest person copies authentication information. Further, provided that the secure storage medium is distributed to every signal person belonging to a corporate body, it can be applied to corporate users in the same way as individual users.

Abstract: A personal computer PC transmits to a server encoded user information and encoded license information, etc. contained in a secure recording medium. The server decodes the encoded license information to obtain license information. Then, the server deletes the encoded license information contained in the secure recording medium via the personal computer PC. The server decodes the decoded user information contained in a secure recording medium to obtain user information. Then, the server encodes the license information based on the user information to write the obtained encoded license information into the secure recording medium via the personal computer PC. In this manner, license information can be moved between two secure media and convenience can be improved.

Abstract: First and second stationary members are arranged to face each other, and a movable member is arranged between these first and second stationary members so as to be movable in a predetermined direction. An electrode groups including a plurality of stationary electrodes having the same width and sequentially arranged at substantially the same pitch in a predetermined direction is formed on each of these stationary electrodes. Also, a movable electrode having a width in the predetermined direction, which is larger than the width of each of the stationary electrodes constituting the electrode group, is arranged on the movable member. First and second voltage signal patterns differing from each other in the timing are applied to the stationary electrodes constituting the electrode group. When the movable member is driven in the predetermined direction by one of the first and second voltage signal patterns, the voltage signal pattern serving to drive the movable member is determined as the driving signal.

Abstract: A content distribution method distributes a package containing a content from a content distribution apparatus to a terminal of a content distribution destination and causes the terminal to expand and display the content contained in the distributed package by using expansion software provided in the terminal. Update data of the expansion software is inserted in the package in addition to the content. When the terminal cannot expand the content by using the expansion software provided in it, the terminal updates the expansion software provided in it by using the update data contained in the distributed package and expands the content by using the updated expansion software.