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Apparatus and method for transmitting and realizing control instruction of receiver reference function

A transmission device and control command technology, which is applied in the branch office to provide special service devices, transmission systems, digital transmission systems, etc., can solve problems such as manual operation, and achieve the effect of enhancing safety and great flexibility

Inactive Publication Date: 2003-01-01
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The disadvantage of distributing permissions over the network is that they are exposed to the risk of table theft, as well as to the deceptive consequences of remote control of false permission tables aimed at non-normally accessible functions of receivers
Also, each update requires a series of human operations on both the receiving and sending sides, and in some environments repeating these operations

Method used

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  • Apparatus and method for transmitting and realizing control instruction of receiver reference function
  • Apparatus and method for transmitting and realizing control instruction of receiver reference function
  • Apparatus and method for transmitting and realizing control instruction of receiver reference function

Examples

Experimental program
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Embodiment Construction

[0068] Sending and receiving components include ( figure 1 ) One or more senders 1 of MSG messages are connected to one or more receivers 2 via a network 5 . In the detailed example below, network 5 is a broadcast unidirectional transmission network, and we focus on a general broadcast server (connected to sender 1 ) that transmits to multiple users (connected to receiver 2 respectively). For simplicity, we only focus on one sender 1 and one receiver 2 .

[0069] Very roughly, a sender 1 receives a message M0 and converts it into information to be sent by adding various items of information to be transmitted over the network 5 and MSG messages to be read by the appropriate receiver 2 and possibly subsequent messages . Correspondingly, the provided receiver 2 extracts the meaningful content represented by the message M0 from the received message MSG. The message M0 is preferably a message of a particular type (Service Announcement Message), and as will be detailed further be...

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PUM

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Abstract

The present invention relates to a device and to a process for transmitting control instructions for access to functionalities of receivers (2), as well as to a corresponding device and process for implementing control instructions. The transmission device comprises means (14) for registering permission identifiers (PERM) in service announcement messages (MSG) intended for the receivers, preferably ATVEF service or system service announcement messages. The permission identifiers, which consist of indicators each having a value chosen from an authorization value and a prohibition value relating to access to at least one of the functionalities of the receivers, are advantageously registered in variable-length authentication fields of the messages. The implementation device comprises means (24) for reading these permission identifiers from the service announcement messages received.

Description

technical field [0001] The present invention relates to a control instruction for transmitting and realizing the function of an access receiver and a corresponding device. Background technique [0002] In order to be able to control the accessibility of receivers connected to a network, it is known to determine a set of authorized and prohibited actions and communicate this to the receiver. For this purpose, an allow list known as a "white list" and, in contrast, a prohibit list known as a "black list" are transmitted. The receiver records these messages in memory and then determines on a per message basis received over the network whether to heed the action requested by the message. [0003] Therefore, this technique can assign variable permissions to a series of receivers, and then send messages collectively, especially by broadcasting. The word "broadcast" refers to the transmission of the same data to a series of terminals whether specifically by radio, cable or the In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/00G06F21/62H04L12/18H04N5/00H04N5/445H04N7/167
CPCH04N21/4334H04N21/6334H04N21/478H04N21/858H04N21/443H04N21/4383H04N7/1675H04N21/43H04N21/8166H04N21/8352H04N21/418
Inventor 洛朗-勒塞内弗雷德里克·帕基耶
Owner INTERDIGITAL CE PATENT HLDG