摘要:
A broadcasting device and a receiver excellent in responsiveness are obtainable through transmitting program information, organized by condition and including a program satisfying a search condition, from a broadcasting station.
摘要:
A content management system which increases the degree of freedom with which a broadcast station can manage content. In the content management system, a client terminal apparatus includes: a terminal ID acquisition unit which holds a terminal ID for identifying that client terminal apparatus; a copy allowance inquiry unit which inquires, with a broadcast station system, whether or not transferring recorded content stored in a secondary storage unit of a server terminal apparatus is allowed; and a copy processing unit which makes a request to the server terminal apparatus to transfer the recorded content in the case where the broadcast station system has allowed the transfer, and records the transferred recorded content into a storage medium.
摘要:
The invention relates to properly protecting broadcast contents stored on a receiver side from copying without permission and illegal use in server type broadcasting. According to the invention, contents are sent from a broadcast sending side in a state in which copyright information for the contents is added to the contents. On the other hand, on a receiving client side applicable to server type digital broadcasting, it is possible to perform appropriate control for reproduction of contents and recording reservation on the basis of copyright information for contents such as the number of times of reproduction of contents, restriction of display resolution at the time of reproduction of contents, and an expiration date of content reproduction. According to this copyright information, it is possible to perform detailed control for a display device incorporated in or connected to a receiver.
摘要:
In order to protect audio signals against copying, it is proposed to mix the audio signal with at least one non-audible disturbance signal. A first disturbance signal may be a low-frequency signal which is added to the audio signal, while a second disturbance signal may be a high-frequency disturbance signal which is multiplied with the audio signal. Additionally, the second disturbance signal may be modulated by a modulating signal comprising either the original or inverted original signal, or spoken messages indicative of an illegal copy.
摘要:
A contents provider stores contents data in a container in a format which can only be decoded with a key distributed from an EMD service center, and transmits the container to a service provider. The service provider adds pricing information and the like and distributes this to a user home network. The user home network pays charges to the EMD service center based on the pricing information, receives the key, and decodes the contents data. Information regarding the number of times which copying is permitted is contained in the secure container, and the number of times permitted is increased each time charges are paid, thereby enabling copying to other media and the like. It is impossible to make copies from a container simply copied, or in cases where in the number of permitted times of copies has been used up. Thus, contents data can be distributed in a format wherein copying of contents data can be controlled including the number of copies made.
摘要:
A SAM receives a secure container in which content data encrypted with content key data, the encrypted content key data, and UCP data designating a handling policy of the content data are stored, and determines at least one of the purchase mode and the usage mode of the content data based on the UCP data. The SAM serves as a slave for a host CPU, and is also provided with a common memory shared with the host CPU.
摘要:
An encoded digital signal having frames of different lengths is decoded to obtain a wideband digital signal. The decoder converts frames having information packets, where the number of packets in a frame is related to the sampling frequency of the wideband digital signal, the bitrate of the encoded digital signal, the number of bits in the information packets, and the number of samples of the wideband digital signal whose corresponding information is the encoded digital signal in the frame. A receiver for such a signal includes a decoder for converting the frames.
摘要:
A digital broadcast receiving apparatus capable of executing a function with a higher added value is provided. A broadcast receiving apparatus configured to receive contents includes: a receiving unit configured to receive the contents; an interface through which the contents received by the receiving unit are outputted; and a control unit configured to control an output state of the contents from the interface. The control unit is configured to determine an output state of the contents from the interface in accordance with a combination of control information indicating a copy control state of the contents, control information for specifying whether protection is required or not when the contents are to be outputted, information indicating resolution of video of the contents, and information indicating transmission characteristics of the video of the contents, which are received by the receiving unit together with the contents.
摘要:
In a broadcast receiving apparatus including: a broadcast receiving unit configured to receive control information regarding contents of digital broadcasting and content protection for the contents; an accumulation unit configured to accumulate the contents received by the broadcast receiving unit; a video output unit configured to output video of the contents received by the broadcast receiving unit or video of the contents accumulated by the accumulation unit to external equipment; an interface; and a control unit, switching of content protecting processes are executed in accordance with the number of pixels of video of contents in a first video outputting process state to output contents to external equipment without accumulation, a second video outputting process state to output contents to external equipment after an accumulating process, a copying process state, and a moving process state, and control is executed.
摘要:
A broadcasting device and a receiver excellent in responsiveness are obtainable through transmitting program information, organized by condition and including a program satisfying a search condition, from a broadcasting station.