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Class Information
Number: 380/215
Name: Cryptography > Video cryptography > Video electric signal modification (e.g., scrambling) > Nonstandard scan pattern of video information > Line cut and shuffle
Description: Subject matter wherein an individual scan line is segmented and then the order of the segments is rearranged.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8218764 System and method for media content collaboration throughout a media production process Jul. 10, 2012
7584511 Data processing apparatus, data processing method, program, program recording medium, data recording medium, and data structure Sep. 1, 2009
7218737 System and method for an adaptive state machine to control signal filtering in a serial link May. 15, 2007
6925181 Method of protecting high definition video signal Aug. 2, 2005
6888943 Multimedia adaptive scrambling system (MASS) May. 3, 2005
6859536 Video-signal output apparatus and video-signal input apparatus Feb. 22, 2005
6408077 Descrambling device of a security element and security element comprising such a device Jun. 18, 2002
5815572 Video scrambling Sep. 29, 1998
5598472 Charge-coupled-device based all-analog wave form scrambling with applications in audio, video, video-on-demand, and TV systems Jan. 28, 1997
5579391 TV scramble system for preventing illegal reception Nov. 26, 1996
5563948 Process for authentication of smart cards, and device for use of the process Oct. 8, 1996
5504815 Method and apparatus for scrambling and descrambling Apr. 2, 1996
5488658 Video signal scrambling and descrambling apparatus Jan. 30, 1996
5455860 Scramble codec Oct. 3, 1995
5452357 Method and apparatus for access control and/or identification Sep. 19, 1995
5410601 Video scramble system and equipment Apr. 25, 1995
5321748 Method and apparatus for television signal scrambling using block shuffling Jun. 14, 1994
5239582 Ramp generation for preventing transitions with infinite short rise time in a video scrambling system Aug. 24, 1993
5224161 Method of scrambling and of unscrambling composite video signals, and device for implementation Jun. 29, 1993
5212723 Burst phase correction system for video descrambling May. 18, 1993
5210608 Method for the correction of television signals at transmission, and implementation device May. 11, 1993
5208856 Scrambling and unscrambling method for composite video signals and implementing device May. 4, 1993
5204898 Method of protection against the unauthorized unscrambling of scrambled television broadcasts, and implementation method Apr. 20, 1993
5191609 Scrambling and unscrambling circuit Mar. 2, 1993
5177485 Method of scrambling PAL, SECAM and NTSC composite video signals and decoder of signals scrambled by this method Jan. 5, 1993
5144663 Method of interactive communication between a subscriber and a decoder of a system of pay-television and decoder thereof Sep. 1, 1992
5046091 Extended definition television transmission system Sep. 3, 1991
5014310 Video scrambling and descrambling by varying sequence of segments in adjacent video information lines May. 7, 1991
4964162 Secure television signal encoding and decoding system Oct. 16, 1990
4951314 Line tilt compensation method and apparatus Aug. 21, 1990
4945564 Process for the scrambling and descrambling of television images Jul. 31, 1990
4864614 Authorising coded signals Sep. 5, 1989
4827510 Minimization of amplitude gaps in a line-spin scrambled video signal May. 2, 1989
4796299 Video encoder apparatus Jan. 3, 1989
4777648 Line tilt compensation method and apparatus Oct. 11, 1988
4757531 Encryption of television signals Jul. 12, 1988
4747138 Method of scrambling television pictures and arrangement for descrambling the pictures thus scrambled May. 24, 1988
4742544 Television transmission network with scrambling and descrambling May. 3, 1988
4742543 Video transmission system May. 3, 1988
4736420 Video scrambling by segmenting video information lines Apr. 5, 1988
4731837 Method and device for secure transmission and of television pictures Mar. 15, 1988
4727579 Scrambled television signals Feb. 23, 1988
4723282 Method and apparatus of decoding and deciphering a rotated video signal Feb. 2, 1988
4691352 Arrangement for deciphering and decoding television pictures encoded in accordance with the MAC standard and scrambled at transmission by submitting the video signals to cyclic permutations Sep. 1, 1987
4673975 Television signal scrambling apparatus Jun. 16, 1987
4651205 Television transmission system Mar. 17, 1987
4649419 Pseudo-random binary sequency generator Mar. 10, 1987
4636851 Signal coding for secure transmission Jan. 13, 1987
4636854 Transmission system Jan. 13, 1987
4605961 Video transmission system using time-warp scrambling Aug. 12, 1986

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