Patents-Review.com
ClassID:

198741 ⎘

G11B20/00724 - CPC Classification

Classification description:

Signal processing not specific to the method of recording or reproducing; Circuits therefor; Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a purchase action wherein a prepaid credit balance is registered on the recording medium

Recent Application in this class:
#1
20100169222
2010-07-01

Method for Secure Storage and Delivery of Media Content

 #2
20100161633
2010-06-24

Method for providing a suggested read list of digital data to a host device

 #3
20100138673
2010-06-03

Method for Secure Storage and Delivery of Media Content

 #4
20100131775
2010-05-27

Method for Secure Storage and Delivery of Media Content

 #5
20100131774
2010-05-27

Method for Secure Storage and Delivery of Media Content

 #6
20100131411
2010-05-27

Method for Secure Storage and Delivery of Media Content

 #7
20100115026
2010-05-06

CONTENT DISTRIBUTION SYSTEM AND METHOD, AND SERVER DEVICE, AND CLIENT DEVICE

 #8
20080232220
2008-09-25

Optical disk and optical disk reproducing device

 #9
20080163326
2008-07-03

Portable Video Hard-Disk Drive (pVHDD) System

 #10
20080089664
2008-04-17

Recording medium and apparatus for protecting copyrighted digital data

 #11
20080013200
2008-01-17

Recording medium and apparatus for protecting copyrighted digital data

 #12
20070269185
2007-11-22

Method, apparatus, and recording medium for recording multimedia content

 #13
20070124603
2007-05-31

Content reproduction system

 #14
20070118480
2007-05-24

Information recording apparatus, control program and recording medium

 #15
20070098159
2007-05-03

Method and apparatus for providing prepaid music card for deciphering recorded broadcast audio signals

 #16
20070071420
2007-03-29

Recording medium and apparatus for protecting copyrighted digital data

 #17
20070056042
2007-03-08

Mobile memory system for secure storage and delivery of media content

 #18
20070043667
2007-02-22

Method for secure storage and delivery of media content

 #19
20060217829
2006-09-28

Music player

 #20
20060136340
2006-06-22

Post-paid billing system and method for multimedia files

 #21
20050265549
2005-12-01

Recording medium and apparatus for protecting copyrighted digital data

 #22
20050232595
2005-10-20

Information signal recording device having accounting function, and accounting terminal device

 #23
20050169472
2005-08-04

Prepaid card type data recording medium, recording apparatus thereof, apparatus for providing contents, and method used for authenticating the data recording medium

 #24
20050080877
2005-04-14

Data recording medium, data recording method, data processing device, data distribution method, data distribution device, data transmission method, data transmission device, data distribution system, and data communication system

 #25
20050005148
2005-01-06

Contents processing system