摘要:
In one embodiment, a broadcast transmitter includes: a viewer information memory configured to store viewer information regarding a viewer who signs up for a subscription; a generator configured to generate individual information regarding a conditional access of a content including a first expiration time indicating an expiration time of the individual information and a second expiration time set independently of the first expiration time for each the viewer who signs up for the subscription based on the viewer information; and a transmitter configured to transmit a broadcast signal including the generated individual information.
摘要:
A decryptor includes a descrambler for descrambling the scrambled signals using a PN signal, a PN generator which shifts the state successively from its initial state setup by a scramble-key, generates PN signals based on a conversion logic at the shifted state and is capable of changing PNG altering information for generating PN signals and a controller for decrypting a scramble-key from the scrambled signal and giving information for specifying a scramble-key and PN signal generating logic.
摘要:
In one embodiment, a broadcast transmitter includes: a viewer information memory configured to store viewer information regarding a viewer who signs up for a subscription; a generator configured to generate individual information regarding a conditional access of a content including a first expiration time indicating an expiration time of the individual information and a second expiration time set independently of the first expiration time for each the viewer who signs up for the subscription based on the viewer information; and a transmitter configured to transmit a broadcast signal including the generated individual information.
摘要:
Channel selection unit selects a channel of a desired program from a digital broadcast signal in which an ECM and an EMM are multiplexed. Separation unit separates the ECM and the EMM. EMM decoder decodes the EMM. A first key is obtained from the decoded EMM. ECM decoder decodes the separated ECM using the first key. A second key is obtained from the decoded ECM. Viewing enabling determination unit determines whether or not to enable viewing of the program. A system controller communicates with an information server through a network interface part at the time of work key non-setting, and an OSD display processing unit is made to generate an image for displaying information provided.
摘要:
In a repeating device for sending chargeable satellite broadcasting received through a BS antenna to a connected cable, a scrambled video signal and an audio signal are separated from each other by a separation part from a satellite broadcast signal. Relevant information packets multiplexed upon the audio signal are separated from each other by a separating part, and common information packets of the relevant information packets are separated from each other by another separation part. Common information packets which are successively sent five times are judged in majority by a majority judgement part. Packets having errors corrected by an error correction part are temporarily stored in a buffer memory. The stored packets are read out three times by a thrice successive sending part wherein the stored packets are successively sent fewer times than the number of times the packets are sent from from an atmospheric transmission system. Subsequently, the packets are multiplexed in time sharing upon the other information packets. The packets are further superimposed by a VBI multiplexing part upon a specific line during a vertical blanking period of the scrambled video signal, and are then transmitted.
摘要:
In one embodiment, a broadcast transmitter includes: a viewer information memory configured to store viewer information regarding a viewer who signs up for a subscription; a generator configured to generate individual information regarding a conditional access of a content including a first expiration time indicating an expiration time of the individual information and a second expiration time set independently of the first expiration time for each the viewer who signs up for the subscription based on the viewer information; and a transmitter configured to transmit a broadcast signal including the generated individual information.
摘要:
In a digital broadcast receiver, an ECM and an EMM are separated from a digital signal of a selected channel. The separated ECM and EMM are decoded. The digital signal is scrambled using a scramble key obtained from the decoded ECM. Whether or not viewing the desired program is permitted is determined using the decoded ECM and the decoded EMM. Whether or not receiver is revoked is determined from the decoded EMM. When it is determined that the receiver is revoked, the receiver is connected to a revoke relevant information providing server for providing revoke relevant information and the revoke relevant information is acquired and the acquired revoke relevant information is output.
摘要:
According to one embodiment, a content reproduction device connected through a network to a content server comprises a content acquisition module configured to function as a server for a client computer which retrieves to select content registered in the content server and to acquire the content selected by the computer from the content server, and a signal processing module which decodes the content acquired by the content acquisition module, wherein the content acquisition module acquires a uniform resource locator (URL) of the selected content to be reported from the computer and acquires content registered in the URL from the content server.
摘要:
There is provided a method with which the expansion of CATV services and the diversity of subscribers' needs can be dealt with flexibly, it is easier to maintain and expand the apparatus, the system can be operated simply, and the parental control function is also simple. A head end and a subscriber terminal unit have two-way communication means and are connected to each other via a two-way transmission line. The HIB and subscriber remote control units each have two-way communication means. The output of HIB is supplied to various types of apparatuses. The HIB can also exchange data with an expansion unit. To control various types of apparatuses with a remote control unit, the remote control unit communicates with the HIB, receives the necessary data under the control of HIB, and together with HIB, controls various types of apparatuses.
摘要:
An air-conditioning equipment for a vehicle includes first and second local shutter control units each having a motor for moving a shutter, a drive circuit for driving the motor, a controlling device responsive to a heat load signal to control the drive circuit to thereby control the shutter in accordance with the heat load signal, and a blower control unit responsive to changes in opening of the shutter to control the rate of an air flow. Since separate shutter control units are provided, each shutter can be controlled independently, thus preventing all the air-conditioning functions from halting simutaneously otherwise occurred in conventional air-conditioning equipment having a central control unit or microcomputer.