Transmission system

Transmission system

  • CN 1,295,763 B
  • Filed: 12/27/1999
  • Issued: 06/23/2010
  • Est. Priority Date: 01/28/1999
  • Status: Active Grant
First Claim
Patent Images

1. be used for sending to receiver (14) method of multiplex signal (12) from transmitter (10), this method comprises:

  • above-mentioned transmitter (10) makes described multiplex signal (12) comprise first and second sections, described first section comprises encrypted data packets, described second section comprises decrypt packet, described decrypt packet comprises decruption key (48), make that described first and second sections at least a portion is identical, described first and second sections are linked at together by described identical part, above-mentioned receiver (14) uses a filter obtaining encrypted data packets and decrypt packet from above-mentioned multiplex signal (12), and above-mentioned receiver (14) is also deciphered described encrypted data packets by decruption key (48).

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