Abstract: Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.

Abstract: A control device performs reading of data from a recording medium or writing of data into the recording medium. The control device includes a plurality of processing sections for performing at least any one of encrypting and decrypting processes, a plurality of interface sections serving as an interface to the recording medium respectively, and a controlling section for allocating one of the plurality of processing sections and one of the plurality of interface sections to each type of contents read from the recording medium or each type of contents written into the recording medium respectively. The control device encrypts or decrypts a plurality of contents in parallel.

Abstract: A cylindrical roller-incorporated roller chain, which can reduce wear of the side plates and also can reduce radial wear. A roller chain for a conveyor in which a plurality of cylindrical rollers are composed of either a casehardened steel cylindrical roller 4 or an oil-impregnated sintered alloy cylindrical roller 5. The casehardened steel cylindrical rollers 4 and the oil-impregnated sintered alloy cylindrical rollers 5 are alternately disposed in a circumferential direction. A pair of side plates 6, 6 are each composed of an oil-impregnated sintered alloy having a collar portion 6a and a cylindrical portion 6b. One axial end surface of each collar portion 6a abuts on an end surface of the hollow roller 3 (having no collar), and each cylindrical portion 6b is fitted between the inner circumferential surface of the roller 3 and the outer circumferential surface of the bushing 2.

Abstract: A bus arbitration apparatus according to this invention appropriately arbitrates bus rights of use between a plurality of masters and a plurality of slaves so as to efficiently perform requested data transfer. An arbiter A 5 receives data transfer requests with respect to a slave A 3 generated by masters A 1 and B 2. The arbiter A 5 cooperates with an arbiter B 4, and arbitrates a contention of the data transfer requests with respect to the slave A 3 generated by the masters A 1 and B 2.

Abstract: In a target apparatus which stores at least one piece of domain key information in a first area and a plurality of pieces of content key information each associated with any one of the domain key information in a second area, a method for generating data for detecting tampering of the content key information. The method comprises the steps of encrypting the content key information associated with one of the domain key information using a chain encryption technique; extracting data at predetermined positions in the encrypted content key information, concatenating the pieces of data extracted at the predetermined positions in the encrypted content key information to obtain concatenated data, performing a hash calculation with respect to the concatenated data to obtain a hash value, storing check values corresponding to the data at the predetermined positions in plain text, in the target apparatus, and storing the hash value in the target apparatus.

Abstract: A control device performs the reading of data from a recording medium that is authenticated mutually or the writing of data into the recording medium. The control device includes an interface section which interfaces with the recording medium, a storing section which stores key information and authentication information produced in an authentication operation, and a controlling section which controls a supply of power based on whether or not the control device performs either the reading of data from the recording medium or the writing of data into the recording medium. While the control device performs neither the reading of data from the recording medium nor the writing of data into the recording medium, the controlling section controls so as to supply only to the storing section. Therefore, in the control device, a reduction in the number of times of mutual authentication with a recording medium is compatible with low power consumption.

Abstract: To provide an aperture mechanism and an optical apparatus which are reduced in size. The aperture mechanism comprising: a driving member to be driven in accordance with an aperture operation; an aperture member having an aperture to be driven by the driving member; a first engagement section connected to one of the driving member and the aperture member; a second engagement section connected to another one of the driving member and the aperture member and engaged with the first engagement section; and a biasing member connected to at least one of the driving member and the aperture member to provide a bias in a direction in which the first engagement section and the second engagement section are facing to each other.

Abstract: In a target apparatus which stores at least one piece of domain key information in a first area and a plurality of pieces of content key information each associated with any one of the domain key information in a second area, a method for generating data for detecting tampering of the content key information. The method comprises the steps of encrypting the content key information associated with one of the domain key information using a chain encryption technique, extracting data at predetermined positions in the encrypted content key information, concatenating the pieces of data extracted at the predetermined positions in the encrypted content key information to obtain concatenated data, performing a hash calculation with respect to the concatenated data to obtain a hash value, storing check values corresponding to the data at the predetermined positions in plain text, in the target apparatus, and storing the hash value in the target apparatus.

Abstract: The invention relates to a self-lubricating chain which includes a connecting pin which is used to connect inner and outer link portions. The connecting pin includes a lubricating hole and a hollow portion where a lubricating oil supply may be disposed and held in place by a lid member, which provides a press fit and tight seal so as to provide a reliable lubricating oil supply and a durable chain which has improved durability.

Abstract: The remaining time period until the deadline of transfer by a device connected to a bus is measured, the remaining data size to be transferred by the device is detected, and the priority level of the device is set based on the remaining time period and the remaining data size.

Abstract: An development environment of a high security level is provided for a key-installed system. Development of a program for a system having an LSI device which includes a secure memory is performed by providing another LSI device having the same structure and setting the provided LSI device to a development mode which is different from a product operation mode. Alternatively, the provided LSI device is set to an administrator mode to perform development and encryption of a key-generation program. The LSI device is set to a key-generation mode to execute the encrypted key-generation program, thereby generating various keys.

Abstract: An optical waveguide structure has excellent heat resistance and a low water absorbing property and can be manufactured with a low material cost. Such an optical waveguide structure includes: an optical waveguide having two surfaces, a core layer including core portions and cladding portions each having a refractive index lower than that of each of the core portions, the core layer having two surfaces, and cladding layers provided so as to make contact with the two surfaces of the core layer and having a refractive index lower than that of each of the core portions; and conductor layers provided on the two surfaces of the optical waveguide. In the optical waveguide structure, each of the cladding layers is formed of a norbornene-based polymer as a major component thereof.

Abstract: Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.

Abstract: Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.

Abstract: An encrypted data production device (101) encrypts encryption object data including a plurality of frame data in a cipher block chaining mode using a cipher chaining unit of an arbitrary data length. A frame length/cipher chaining analysis section (114) produces, from AV data management information, additional information headers, each of which corresponds to one of the frame data and includes a frame header for the frame data. An encryption/decryption processing section (109) encrypts the frame data in a cipher block chaining mode to produce a series of a plurality of encrypted data. A header analysis/addition section (118) associates one of the plurality of encrypted data that includes therein a boundary between nth frame data and (n+1)th frame data with the additional information header corresponding to the (n+1)th frame data, and adding the additional information header at a predetermined position.

Abstract: A locking part structure for a vehicle, which includes a door, locking means for locking the door to a vehicle body when the door is closed, and an auxiliary plate that connects the door to the locking means. The locking means comprises a door side locking part that is set in a lock opening formed in the door, and a vehicle body side locking part that is disposed on a vehicle body side and engages with the door side locking part when the door is closed. The auxiliary plate comprises a door fixing part to be fixed to the door, a lock fixing part to be fixed to the door side locking part, and a bending part that is disposed between the door fixing part and the lock fixing part, and formed in a bending form so as to be stretchable.

Abstract: A wear resistant, heat resistant conveyor chain comprising a series of links, each having a heat resistant roller rotatably fitted onto a bush between inner plates. The links are interconnected in the longitudinal direction of the chain by outer plates, and connecting pins rotatably inserted into the bush. A wear resistant, heat resistant sleeve-shaped spacer protrudes beyond the end surfaces of the heat resistant rollers toward the right and left inner plates to eliminate any sliding contact between the end surface of the heat resistant roller and the inner side surface of the inner plate.

Abstract: Provided are an organic electroluminescent device having better performances in luminous efficiency, device life and driving voltage, a display unit equipped with the same and a lighting instrument equipped with the same. The organic electroluminescent device comprises an electron transport layer containing a specific arylamine-substituted coumarin compound.

Abstract: A conveyor chain with a side roller, in which both assembly of and replacement of the bearing and seal members in the side roller of the conveyor chain are facilitated, and the seal performance is improved so that a long life of the seal member is realized. The chain has a sleeve 180 is inserted between a projecting side roller shaft 188 and inner rings of anti-friction bearings 172 and 174, and a grease pocket is provided between an inner seal member 176 provided on a chain side adjacent to the bearing and an outer seal member 182 spaced from the inner seal member.

Abstract: A semiconductor integrated circuit includes: a first voltage line on which a specific one of a power-supply voltage and a reference voltage appears; a second voltage line; a plurality of circuit cells each receiving power generated as a difference between a voltage appearing on the second voltage line and the other one of the power-supply voltage and the reference voltage; a plurality of switch transistors connected in parallel between the first and second voltage lines to serve as switch transistors including switch transistors each having different conducting-state resistances; and a switch conduction control section for controlling a transition of each of the switch transistors from a non-conducting state to a conducting state by turning on the switch transistors at separate points of time.