Abstract: A data recording apparatus capable of preventing easily copying of information is disclosed with which, even if information is copied, the copied information cannot be reproduced, the data recording apparatus having a terminal to which encoder ID specific for the data recording apparatus is input, a recording unit for recording at least the encoder ID on an optical disk, and an encoding circuit for, in accordance with the encoder ID, encoding data supplied through a terminal and required to be recorded so that encoded data is, together with the encoder ID, recorded on the optical disk.

Abstract: A data recording apparatus capable of preventing easily copying of information is disclosed with which, even if information is copied, the copied information cannot be reproduced; the data recording apparatus having a terminal to which encoder ID specific for the data recording apparatus is input, a recording unit for recording at least the encoder ID on an optical disk, and an encoding circuit for, in accordance with the encoder ID, encoding data supplied through a terminal and required to be recorded so that encoded data is, together with the encoder ID, recorded on the optical disk.

Abstract: A data recording apparatus capable of preventing easily copying of information is disclosed with which, even if information is copied, the copied information cannot be reproduced, the data recording apparatus having a terminal to which encoder ID specific for the data recording apparatus is input, a recording unit for recording at least the encoder ID on an optical disk, and an encoding circuit for, in accordance with the encoder ID, encoding data supplied through a terminal and required to be recorded so that encoded data is, together with the encoder ID, recorded on the optical disk.

Abstract: Disclosed is an information providing apparatus comprising first reception control means for controlling the reception, from a first information processing apparatus, of user identification data for identifying a user of the first information processing apparatus and a request for purchasing a content, first transmission control means for controlling in response to the request for purchasing the content the transmission of the request for purchasing the content to a second information processing apparatus, second reception control means for controlling the reception of the content and usage conditions thereof supplied from the second information processing apparatus, storage control means for controlling the storing of the content and usage conditions thereof in correlation with the user identification data, third reception control means for controlling the reception of the user identification data and a request for sending the content supplied from the first information processing apparatus, and second trans

Abstract: The present invention is intended to quickly download contents while preventing unauthorized contents usage. PD authentication program authenticates telephone-integrated terminal device. Server authentication program authenticate key server. Server LCM controls the reception of a request for data for identifying key server and a key from telephone-integrated terminal device. On the basis of the data for identifying key server, server LCM sends a request for the key to key server and receives the requested key from key server. Key distribution program sends the key to telephone-integrated terminal device.

Abstract: The present invention relates to an information processing apparatus by which a communication channel providing a high degree of privacy is established between a PDA and a data communication server. Data encrypted with a temporary key is shared by a PDA and a memory card. The memory card decrypts the data by the shared temporary key, and then stores the data in the memory card. Data encrypted with a temporary key shared by a PC and the memory card. The PC decrypts the data by the shared temporary key, and then stores the data in the PC. The PC and the data communication server are connected to each other, and perform mutual authentication. The data encrypted with a temporary key shared by the PC and the data communication server as a result of the authentication is transmitted from the PC to the data communication server via a broadband network.

Abstract: Disclosed is an information providing apparatus comprising first reception control means for controlling the reception, from a first information processing apparatus, of user identification data for identifying a user of the first information processing apparatus and a request for purchasing a content, first transmission control means for controlling in response to the request for purchasing the content the transmission of the request for purchasing the content to a second information processing apparatus, second reception control means for controlling the reception of the content and usage conditions thereof supplied from the second information processing apparatus, storage control means for controlling the storing of the content and usage conditions thereof in correlation with the user identification data, third reception control means for controlling the reception of the user identification data and a request for sending the content supplied from the first information processing apparatus, and second trans

Abstract: The present invention relates to an information processing apparatus by which a communication channel providing a high degree of privacy is established between a PDA and a data communication server. Data encrypted with a temporary key is shared by a PDA and a memory card The memory card decrypts the data by the shared temporary key, and then stores the data in the memory card. Data encrypted with a temporary key shared by a PC and the memory card The PC decrypts the data by the shared temporary key, and then stores the data in the PC. The PC and the data communication server are connected to each other, and perform mutual authentication. The data encrypted with a temporary key shared by the PC and the data communication server as a result of the authentication is transmitted from the PC to the data communication server via a broadband network.

Abstract: A signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus, whereby a signal recorded on a signal record medium can be identified as being an original signal or a copied signal. A CPU 11 generates, at a pe-set time interval, an identification signal having a meaning at a pre-set time interval, and an identification signal addition circuit 3 adds the identification signal to the video signals and/or the audio signals. A sector forming circuit 5 and circuit components up to a recording/reproducing head 14 record the video signals and/or the audio signals and the ancillary identification signal on an optical disc 12.

Abstract: Disclosed is an information providing apparatus comprising first reception control means for controlling the reception, from a first information processing apparatus, of user identification data for identifying a user of the first information processing apparatus and a request for purchasing a content, first transmission control means for controlling in response to the request for purchasing the content the transmission of the request for purchasing the content to a second information processing apparatus, second reception control means for controlling the reception of the content and usage conditions thereof supplied from the second information processing apparatus, storage control means for controlling the storing of the content and usage conditions thereof in correlation with the user identification data, third reception control means for controlling the reception of the user identification data and a request for sending the content supplied from the first information processing apparatus, and second trans

Abstract: Contents and its key are supplied in different procedures. License management program authenticates telephone-integrated terminal device and authenticates first server or second server. Server LCM controls the reception of contents and key transmission requests and of data for identifying first server or second server. If data for identifying first server are received, contents and its key are received from first server in a procedure corresponding to first server. If data for identifying said server are received, contents and its key are received from second server in a procedure corresponding to second server. Server LCM controls the transmission of contents and its key to telephone-integrated terminal device.

Abstract: Contents and its key are supplied in different procedures. License management program authenticates telephone-integrated terminal device and authenticates first server or second server. Server LCM controls the reception of contents and key transmission requests and of data for identifying first server or second server. If data for identifying first server are received, contents and its key are received from first server in a procedure corresponding to first server. If data for identifying said server are received, contents and its key are received from second server in a procedure corresponding to second server. Server LCM controls the transmission of contents and its key to telephone-integrated terminal device.

Abstract: The present invention relates to an information processing apparatus and method, a recording medium, and a program for allowing items in usage conditions set for digital content to be easily added, deleted, and replaced. A data acquisition section 91 requests a content distribution apparatus to supply digital content, and outputs to a data storage section 95 the digital content and usage-condition information corresponding thereto supplied in response to this request. Furthermore, in response to a request from a usage-condition determination section 93, the data acquisition section 91 makes a request to the content distribution apparatus for a usage-condition plug-in module 94.

Abstract: A signal transmission method applicable to prevention of modification or alteration of the playback mode information, such as copying management information or charging information. The playback mode information form a terminal is data-converted for ciphering by a playback mode information appendage circuit in a header appendage circuit responsive to the key information from a terminal and the resulting information comprised of the data and the playback mode information is outputted. The reproducing side effects data conversion on the ciphered playback mode information for deciphering, by a playback mode information detection circuit in a header separation circuits, using the key information from a terminal, for taking out the original playback mode information at a terminal.

Abstract: A signal transmission method applicable to prevention of modification or alteration of the playback mode information, such as copying management information or charging information. The playback mode information form a terminal 15P is data-converted for ciphering by a playback mode information appendage circuit 14 in a header appendage circuit 13 responsive to the key information from a terminal 15K and the resulting information comprised of the data and the playback mode information is outputted. The reproducing side effects data conversion on the ciphered playback mode information for deciphering, by a playback mode information detection circuit 26 in a header separation circuit 25, using the key information from a terminal 27K, for taking out the original playback mode information at a terminal 27P.

Abstract: The present invention relates to a content-providing system, information-processing apparatus, information-processing methods and programs which are capable of keeping up with changes in content value. A license server 221 transmits a utilization condition and a price table to a terminal 211. The terminal 211 has set contents stored in advance in a database 212. In an offline environment, the terminal 211 is capable of utilizing desired contents by using an electronic point count. The terminal 211 transmits information on contents used by the terminal 211 to the license server 221. The license server 221 collects a history of utilizations of contents in the terminal 211, extracts apparatus favorite contents for the terminal 211 from a database and properly transmits the favorite contents as well as price data reflecting changes in price to the terminal 211. The present invention is thus suitable for a system for providing contents.

Abstract: Contents and its key are supplied in different procedures. License management program authenticates telephone-integrated terminal device and authenticates first server or second server. Server LCM controls the reception of contents and key transmission requests and of data for identifying first server or second server. If data for identifying first server are received, contents and its key are received from first server in a procedure corresponding to first server. If data for identifying second server are received, contents and its key are received from second server in a procedure corresponding to second server. Server LCM controls the transmission of contents and its key to telephone-integrated terminal device.

Abstract: The present invention is intended to quickly download contents while preventing unauthorized contents usage. PD authentication program authenticates telephone-integrated terminal device. Server authentication program authenticate key server. Server LCM controls the reception of a request for data for identifying key server and a key from telephone-integrated terminal device. On the basis of the data for identifying key server, server LCM sends a request for the key to key server and receives the requested key from key server. Key distribution program sends the key to telephone-integrated terminal device.

Abstract: The present invention is intended to quickly download contents while preventing unauthorized contents usage. PD authentication program authenticates telephone-integrated terminal device. Server authentication program authenticate key server. Server LCM controls the reception of a request for data for identifying key server and a key from telephone-integrated terminal device. On the basis of the data for identifying key server, server LCM sends a request for the key to key server and receives the requested key from key server. Key distribution program sends the key to telephone-integrated terminal device.

Abstract: A data recording apparatus capable of preventing easily copying of information is disclosed with which, even if information is copied, the copied information cannot be reproduced, the data recording apparatus having a terminal to which encoder ID specific for the data recording apparatus is input, a recording unit for recording at least the encoder ID on an optical disk, and an encoding circuit for, in accordance with the encoder ID, encoding data supplied through a terminal and required to be recorded so that encoded data is, together with the encoder ID, recorded on the optical disk.