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Your search returned 238 patents.
( 380/239 in Current US Classification ) |
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| 1 2 3 |
| Patent ID | Title | Date Filed |
| 7185369 | Motor vehicle navigation system having a protected storage medium
| March 30, 2001 |
| 6714650 | Recording of scrambled digital data
| August 11, 2000 |
| 6697489 | Method and apparatus for securing control words
| February 3, 2000 |
| 6691228 | Signal reproducing/recording/transmitting method and apparatus and signal recording medium
| January 7, 2000 |
| 6690797 | Descrambling device for the use of several conditional access sub-systems
| July 28, 1999 |
| 6690796 | Rolling code security system
| January 21, 2000 |
| 6683955 | Method for receiving a secured transmission of information through a plurality of frequency orthogonal subchannels
| December 17, 1998 |
| 6674858 | Receiving device, recording and reproducing device and receiving/recording-reproducing system for digital broadcast signal
| December 10, 1998 |
| 6650753 | System for encrypting broadcast programs in the presence of compromised receiver devices
| June 20, 2000 |
| 6633644 | Conditional access system for controlling the access to a data content
| December 20, 2000 |
| 6591420 | Remote control system for audio and video content
| August 25, 1999 |
| 6564324 | Reprogrammable subscriber terminal
| December 22, 2000 |
| 6560340 | Method and apparatus for geographically limiting service in a conditional access system
| January 28, 2000 |
| 6560339 | Electronic watermarking method, digital information distribution system using such method, and storage medium storing program of such method
| February 12, 1999 |
| 6543050 | Method and apparatus for enlarging DVB-CI functionality by enabling a direct access to the conditional access module
| June 10, 1999 |
| 6510519 | Conditional access system
| June 14, 2001 |
| 6510515 | Broadcast service access control
| August 11, 1998 |
| 6490356 | Broadcast receiving system comprising a computer and a decoder
| September 21, 1999 |
| 6477547 | Processing system comprised of data processing device and data access device each converting data and mutually communicating the converted data
| September 21, 1999 |
| 6477431 | Watermark detection
| November 4, 1999 |
| 6427013 | Information broadcasting method, receiver, and information processing apparatus
| December 4, 1998 |
| 6424717 | Encryption devices for use in a conditional access system
| December 16, 1999 |
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