H04N2005/91385 - CPC Classification Index

ClassID:

229747 ⎘

H04N2005/91385 - CPC Classification

Classification description:

Details of television systems; Television signal recording; Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video frame number being modulated

Recent Application in this class:

20120321279

2012-12-20

METHOD AND APPARATUS FOR PROVIDING AN INTERACTIVE AND OR ELECTRONIC PROGRAMMING GUIDE

20120224145

2012-09-06

METHOD AND APPARATUS FOR INHIBITING THE PIRACY OF MOTION PICTURES

20100329639

2010-12-30

APPARATUS AND METHOD FOR PROTECTING COPYRIGHT FOR MOTION PICTURE AND RECORD MEDIUM

20100021133

2010-01-28

METHOD FOR COPY PROTECTION FOR VIDEO SIGNAL WITH ADDED PULSES

20090129746

2009-05-21

Camcorder jamming techniques using high frame rate displays

20090092375

2009-04-09

Systems and methods for robust video signature with area augmented matching

20080309883

2008-12-18

Method and apparatus for inhibiting the piracy of motion pictures

20080276325

2008-11-06

Method and apparatus for providing content control via detection of modifications to a signal

20080025696

2008-01-31

VIDEO COPY PROTECTION PROCESS ENHANCEMENT TO INTRODUCE HORIZONTAL AND VERTICAL PICTURE DISTORTIONS

#10

20070211899

2007-09-13

Copy protection for video signal using narrowed horizontal synchronization signals

#11

20070211898

2007-09-13

Copy protection for video signal using added negative amplitude pulse

#12

20070206794

2007-09-06

Copy protection for video signal added pulses

#13

20060045266

2006-03-02

Copy protection for video signal using narrowed horizontal synchronization signals and amplitude modulation

#14

20050129230

2005-06-16

Image display method and image display processor

#15

20050091498

2005-04-28

Method and apparatus for content protection