TH40488A3 - Mechanisms for matching between receiver and safety module - Google Patents

Abstract

DC60 (16/03/55) A system for controlling the transmission of information between the receiver and the safety module. This is especially true for pre-subscription TV systems where the information sent is encrypted and decrypted. By means of the encryption key available A unique characteristic stored implicitly in the receiver and the other in the safety module. A system for controlling the transmission of information between the receiver and the safety module. This is especially true for pre-subscription TV systems where the information transmitted is encrypted, swapped and decrypted. By means of the toggle encryption key available A unique characteristic stored in a receiver, receiver, and another in a safety module.

Claims (9)

1. TV receiver system that has to be paid for membership It consists of a receiver device (A) which is connected to a security device (C, D, F), where the receiver (A) receives the unencrypted data (Descrambling information) from the security device (C, D, F) It is especially characteristic that some of the data (4,6) sent from the security device (C, D, F) to the receiver (A) is encrypted by a unique encryption key. 2. A subscription-based TV receiver system, according to claim 1, is characterized by a unique encryption key that can be shared between groups of receiver devices. 3. The TV receiver system, which has a subscription fee according to claim 1 or 2, is characterized by that some data (3,5) is sent from the receiver (A) to the security device (C, D, F) It will be encrypted by a unique secret key. 4. The TV receiver system, which has a subscription fee of 1 to 3, is characterized by a receiver device (A) as well as a personal number, which may be recorded in The security device (C, D, F) can enable the receiving device (A) to verify the validity of the private number recorded on the security device (C, D, F) at any time. 5. A subscription-based TV receiver system, according to claim 4, is characterized by a personal number consisting of sections specific to a group of tuners. And part specific to one receiver And will be checked for compatibility From the section specific to the group of receiver devices 6. TV signal receiving system that has to pay membership fee according to claim 1 to 5 has special characteristics which are The receiver (A) includes the control unit (B) and the treatment device. Security, which consists of a removable security module (C) in which confidential information (4) and / or information (4) required for the control unit (B) operation is stored. 7. A TV receiver system that has to pay membership fee according to claims 1 to 5 has special characteristics. Security devices consist of security modules that Used to adjust and Check the decoding of the detachable signal (F), which has a control unit (B) and a security unit (C). This unit is responsible for modulating the receiving signal. And to examine the audio and video data signals 8. A subscription-based TV receiver system consists of a receiver. (A) which is connected to the security device (C, D, F) by the receiver (A) receives unencrypted data from the security device (C, D, F) with a special characteristic. Is such a security device consisting of Detachable security module (C) and detachable receiver decoding module (D), which includes the control unit (B) and is characterized by confidential information (4) and / or The information (4) required for the operation of the control unit (B) is encrypted before being sent to the decoder module. Detachable receiver signal (D) by detachable security module (C) by means of a unique encryption key. 9. A subscription-based TV receiver system according to claim 8 is characterized by that some information (3) is transmitted from a detachable receiver module (D) to the maintenance module. Security (C), which will be encrypted by an available encryption key Unique 1 0. The TV receiver system, which has a subscription fee of 8 or 9, is characterized by a detachable receiver module (D) as well as a personal number. This may be recorded in a detachable security module (C), it can enable the detachable receiver decoding module (D) to verify the matching condition of this recorded private number. In a security module Such removable safety all the time (C) 1 1. The system for receiving a TV signal, subject to claim 10, is characterized by a private number consisting of sections specific to a group of modules. A removable receiver code (D) and a section specific to the decoder module. Which can be removed one (D) and has a special effect is to check the match. Compatible only with a specific group of receiver decoding modules, which can remove 1 2. The TV receiver system, which has a subscription fee according to claims 9 to 11, is characterized by at least part of the information (5) is transmitted from the receiver (A) to the receiver module. Which can be removed (D), which is encrypted by the unwrapped key. With a unique identity 1 3. Transmission control system according to claims 9 to 12, with special characteristics as follows: Some of the data (6), sent from the detachable receiver decoder module (D) to the receiver (A), is encrypted by a unique encryption key 1. 4. A TV receiver system that has one of the subscription fees for Claims 12 and 13, characterized by a receiver (A), including a personal number which may It is recorded in the receiver decoder module which can be removed. (D) can make The receiving device (A) checks the matched condition of this registered personal number. The receiver decoder module can be removed as such (D) all the time. 5. How to control data transmission in a paid TV receiver system Between the receiver (A) and the security devices (C, D, F) that the The security serves to transmit decrypted data to the receiver (A) to decode the video and audio signals, with a special feature of the encryption key. At least one identity can be stored in the receiver (A) or in a security device. It is especially characteristic that the data transmitted between the receiver (A) and the security device is encrypted and decrypted by means of Such unique encryption key 1 6. The method according to claim 15 has special characteristics. The personal number that the receiver device (A) is recorded in the security device during the organization of the system. Work and has a special characteristic is the receiver device (A) may check number match This private can be saved in such a security device at any time. 7. Detachable security module (C) intended to be connected to a receiver device (A) as part of a paid TV receiver system, including a unit. A permanent recordable memory to store confidential and / or otherwise It is necessary for the operation of the decoding system and the transmission method between Receiver device (A) with special characteristics The detachable security module (C) includes a method for encryption in transmitting data and this memory. Including at least a set of encryption keys to encrypt such transmission 1 8. Detachable receiver decoder module (D) as part of the A signaling system consisting of a control unit (B), a first transmitter (3,4) with a removable security module (C), a second transmitter (5,6) with a receiver. Signal (A) and a memory that can be permanently recorded with The special characteristics are Including the first encryption method and the effect that this memory This includes the encryption key, which follows the first encryption method made for encryption. Data transmission according to the first transmission method (3,4) 1 9. Detachable receiver decoder module (D) according to claim 18 has the following characteristics: Incorporates a second encryption method. And has special characteristics This memory includes at least one of the swap cipher keys that follow the last encryption method. Second, intended for the encryption of the second transmission method (5,6) 2. 0. Tuner receiver A television that has a subscription fee that includes a transmission method. To security devices (C, D, F) as well as non-replaceable memory modules. There are some special characteristics that include methods for encrypting / decrypting the transmission of data to and from security devices (C, D, F) and there are some special characteristics. In this memory Including having the encryption key Which acts by means of encryption or Decrypt transmission