Claims
- 1-32. (Canceled).
- 33. In a copy protection system including a receiver interconnected to a descrambler module via a link, a method of copy protecting signals flowing from the descrambler module to the receiver via a link, comprising the steps of:
(a) receiving a digital signal in the receiver, said digital signal including a scrambled signal; (b) generating a copy protection data signal by utilizing a scheme which uses random number generation; (c) transmitting said digital signal from the receiver to the descrambler module via the link; (d) descrambling said scrambled signal in the descrambler module to obtain a descrambled signal; (e) converting said descrambled signal in the descrambler module into a copy protected signal using a copy protection data signal; (f) transmitting said copy protected signal from the descrambler to the receiver via the link; and (g) reconverting said copy protected signal to the descrambled signal in the receiver using said copy protection data signal.
- 34. The method of claim 33, wherein the step (b) of generating said copy protection data signal includes generating the copy protection data signal in the receiver.
- 35. The method of claim 34, further comprising the step of transmitting said copy protection data signal from the receiver to the descrambler module via the link.
- 36. The method of claim 33, wherein said digital signal in step (a) is encoded and scrambled.
- 37. The method of claim 33, wherein the descrambler module comprises a PCMIA card.
- 38. The method of claim 33, wherein the link comprises one or more communication mediums configured for carrying digital signals.
- 39. The method of claim 33, wherein the receiver and the descrambler module utilize IS679 compatible interfaces for communication via the link.
- 40. The method of claim 33, further comprising the step of decoding the descrambled signal in the receiver after the step of reconverting.
RELATED APPLICATION
[0001] This application claims the benefit of U.S. Provisional Application No. 60/070,764, filed Jan. 8, 1998.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60070764 |
Jan 1998 |
US |
Divisions (1)
|
Number |
Date |
Country |
Parent |
09226577 |
Jan 1999 |
US |
Child |
10856172 |
May 2004 |
US |