Patent ID: 7660982

Claim:
A method for preventing piracy of a subscription broadcast intended for reception by authorized subscribers comprising the steps of: a) providing a program source including an analog audio signal and a digital video signal; b) generating a program datagram from the program source; c) embedding hidden decoding instructions within the analog audio signal; d) formatting the program datastream; e) providing an encryption program for encrypting the formatted datastream; f) coordinating the decoding instructions with the encryption program; g) transmitting the encrypted datastream to authorized subscribers having unique subscriber identification codes; h) providing a decoder including a detection chip, a decryption chip and an identification chip for decoding the subscriber received datastream by: i. utilizing the detection chip for detecting the embedded decoding instructions within the analog audio signal; ii. utilizing the decoding instructions for reconfiguring a decryption code within the decryption chip; iii. further utilizing the decoding instructions for reconfiguring an identification code within the identification chip; and iv. communicating information received by the identification chip from the program source to the decryption chip for completing the decryption code to enable access to the datastream.