H04N7/169 - CPC Classification Index

ClassID:

229868 ⎘

H04N7/169 - CPC Classification

Classification description:

Television systems; Analogue secrecy systems; Analogue subscription systems; Systems rendering the television signal unintelligible and subsequently intelligible Systems operating in the time domain of the television signal

Sub-classes:

H04N7/1693 » {by displacing synchronisation signals relative to active picture signals or vice versa} 2
H04N7/1696 » {by changing or reversing the order of active picture signal portions} 4

Recent Application in this class:

20230276027

2023-08-31

Method and system for synchronizing playback of two recorded videos of the same surgical procedure

20220217305

2022-07-07

Method and system for synchronizing playback of two recorded videos of the same surgical procedure

20210006752

2021-01-07

Method and system for synchronizing procedure videos for comparative learning

20130216041

2013-08-22

Efficient broadcast entitlement management message delivery mechanism using a scheduled delivery window

20120159534

2012-06-21

SIGNAL MODIFICATION VIA MEDIA GUIDANCE APPLICATION DATA AND/OR METADATA

20090190757

2009-07-30

Efficient broadcast entitlement management message delivery mechanism using a scheduled delivery window

20090174820

2009-07-09

Multichannel Quadrature Modulation

20090052471

2009-02-26

Digital visual interface with audio and auxiliary data

20080080622

2008-04-03

Multichannel quadrature modulation

#10

20080056662

2008-03-06

Receiving apparatus

#11

20060093140

2006-05-04

Content management for a video signal

#12

20060093139

2006-05-04

Defeat method and apparatus for content management for high definition television

#13

16440647

2020-09-29

Method and system for synchronizing procedure videos for comparative learning