Digital signal processing apparatus

Digital signal processing apparatus

  • CN 1,774,061 A
  • Filed: 07/28/1999
  • Published: 05/17/2006
  • Est. Priority Date: 07/28/1998
  • Status: Abandoned Application
First Claim
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1. digital signal processing apparatus comprises:

  • The digital signal bus input/output circuitry is connected with digital signal bus, to or send or receiving digital signals from the external digital signal dispensing device that is connected in described digital signal bus;

    Controller generates the instruction to described external digital signal dispensing device, and carries out the instruction from described external digital signal dispensing device;

    Decipher is decrypted the signal from described external digital signal dispensing device;

    The bag treatment circuit, to become to send bag from the instruction map of described controller, and will be from an instruction that receives the paired described controller of packet transform of described external digital signal dispensing device, and, will receive the digital signal that packet transform becomes to give described decipher from of described external digital signal dispensing device;

    AndBus control circuit by described digital signal bus input/output circuitry, sends to described digital signal bus to described transmission bag, and receives described reception bag from described digital signal bus;

    Wherein, by generating an instruction that is used to the request of differentiating, described controller asks to differentiate at the fixed time, and to described external digital signal dispensing device execution discriminating, and by described instruction and described transmission bag with receive bag and exchange and shared key information, and described decipher is deciphered described digital signal according to described key information.

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