| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a signal processing apparatus capable of avoiding a prescribed inhibit code from being generated in an encrypted digital signal with a small development burden. <P>SOLUTION: A transmission section 25 encrypts a base band signal S24, generates an HD-SDI (High Definition bit Serial Digital Interface) signal S3 resulting from inverting the logical value of the MSB of a module causing the inhibit code when the inhibit code is generated after the encryption, and transmits the signal S3 to a projector 4 in a serial form. A reception section 31 particularizes the module the MSB of which is logically inverted on the basis of address data multiplexed with the HD-SDI signals S3 and decodes the received signal depending on the result. <P>COPYRIGHT: (C)2004,JPO</p> |
