摘要:
To provide an optical disk device, an optical disk control method and an integrated circuit, which are capable of writing a recordable mark by changing the reflectance ratio of a reflective film formed on concave-convex pits without using an industrial special device or a high-power laser light source. A data reproduction controller (103) sets a first rotation speed in a disk rotation speed switching unit (108) and a first laser power in a laser power switching unit (107) when reproducing the concave-convex pits. When writing the recordable mark, a mark recording controller (104) sets in the disk rotation speed switching unit (108) a second rotation speed that is slower than the first rotation speed and the lowest rotation speed at which the concave-convex pits can be reproduced, and sets a second laser power greater than the first laser power in the laser power switching unit (107) in accordance with the emission timing.
摘要:
Setting and operation of a TV, a mobile terminal, and the like are extremely complex to an ordinary user. Even when part of the setting and operation is automatically done, still a change needs to be performed so as to meet the needs of the user according to a use status. In view of this, a RFID tag (8007) of a mobile AV terminal (8006) is brought into proximity of a RFID tag (8007) of a TV 1 to exchange the use status between the terminals, and then a command is generated on the basis of the use status and issued to a server apparatus or the like. Thus, by a simple touching operation (moving the terminal close to the other terminal), it is possible to communicate information for authentication and timing synchronization and thereby meet the needs of the user, with there being no need for the user to perform complex setting and operation.
摘要:
To provide an optical disk and an optical disk reproducing device capable of preventing sub information from being illegally copied and altered. An optical disk includes an optical disk substrate preliminarily provided with concave/convex recording marks in order to record the main information; and a reflection film which covers the optical disk substrate and of which the reflection coefficient is changed by irradiating laser light at or above a certain intensity. The reflection film is preliminarily provided with additional marks for recording the sub information by changing the reflection coefficient of the reflection film on a region where the concave/convex recording marks are formed and the sub information is recorded for every predetermined recording unit for recording the main information. The laser light at or above the certain intensity is irradiated onto the region where the sub information is recorded to reproduce the main information and delete the sub information.
摘要:
A position detection device, a position detection method, a position detection control device, a position detection control method, a position detection control program, an access authentication device, an access authentication method, an access authentication control device, an access authentication control method, an access authentication control program, an information storage device, and an optical disk are provided, all of which make it possible to prevent illegal copying of the information recorded in a recording medium.An information recording/playback device detects the position on an optical disk of an RFID tag provided to the optical disk, and writes the detected position on the optical disk of the RFID tag into the RFID tag as the position information.
摘要:
There is provided a program reservation recording device capable of reducing load on a server and performing program recording as is reserved by a user. Immediately before the reserved program is started and immediately before the end of it (S1), the program reservation recording device makes a request to an information providing server connected via a general-purpose network so as to acquire the latest program list (S2). The program reservation recording device compares the reservation information indicating the program reservation contents (start time, end time, etc.) to be stored in a memory with the latest program list acquired (S3). If any mismatch is present, the reservation information is updated according to the program list (S4).
摘要:
An information notification apparatus includes a first reception unit that receives a first state change notification indicating that the operating state of an electrical appliance has changed to a first state, a transmission unit that transmits a state notification indicating that the operating state of the electrical appliance is the first state to an information terminal, and a second reception unit that receives an acknowledgement notification. The first reception unit further receives a second state change notification indicating that the electrical appliance has been changed to a second state from the electrical apparatus. The transmission unit calculates a correlation value for each of information terminals and transmits the state notification to an information terminal having a calculated correlation value higher than a threshold value, the correlation value indicating a degree of likelihood that the owner of the information terminal has performed an operation corresponding to the second operating state.
摘要:
A radio frequency identification (RFID) device includes: a contact interface for wired communication with a host; a contactless interface for contactless communication with a reader/writer; a command processing unit that obtains a command from the reader/writer in the contactless communication and process the command, the command instructing a data access; and a memory that holds data. The command processing unit determines a communication mode, and (i) executes the data access instructed in the command between the reader/writer and the memory, when the communication mode is determined as a first communication mode, and (ii) executes the data access instructed in the command between the reader/writer and the host, when the communication mode is determined as a second communication mode.
摘要:
A relay device performs Near Field Communication with a terminal device that is a communication terminal device, and processes information received from the terminal device. A loop antenna receives radio waves from the terminal device; an NFC unit performs Near Field Communication with the terminal device via a loop antenna, and receives from the terminal device application identification information, which identifies an application that processes the information received from the terminal device. A controller acquires an application corresponding to the received application identification information, and causes the acquired application to run.
摘要:
A repeater apparatus includes a network communication unit that acquires, from a server through a network, first terminal identification information for identifying a terminal to be controlled and control information for controlling the terminal to be controlled, a near-field communication unit that acquires, by near-field communication from the terminal, second terminal identification information for identifying the terminal and stored in the terminal, and a comparison unit that decides whether the first terminal identification information agrees with the second terminal identification information. The near-field communication unit transmits the control information to the terminal by near-field communication, in the case where the comparison unit decides that the first terminal identification information agrees with the second terminal identification information.
摘要:
The communication device can easily serve as an extended user interface such as a remote controller of a target apparatus without causing any complicated operations to a user. The communication device includes the following units. An apparatus information obtainment unit (203) obtains apparatus information from an apparatus. A position information obtainment unit (206) obtains position information of the communication device (102). An operation information obtainment unit (212) obtains operation information based on the apparatus information. A storage unit (213) stores the position information as apparatus position information indicating as a position of the apparatus, in association with the operation information. A direction sensor unit (207) detects direction of the communication device (102). A directional space calculation unit (208) calculates a directional space of the communication device (102). A selection unit (209a) specifies the apparatus existing in the directional space based on the apparatus position information and selects the operation information associated with the specified apparatus. An operation information transmission unit (215) transmits, based on the selected operation information, a control signal to the specified apparatus so as to allow the communication device to operate the apparatus.