G11B20/00804 - CPC Classification Index

ClassID:

198752 ⎘

G11B20/00804 - 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 digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of users or devices that are allowed to access a given content

Recent Application in this class:

20140324705

SYSTEM AND METHOD FOR EXCHANGING PHYSICAL MEDIA FOR A SECURED DIGITAL COPY

20120315017

CONTENT LIST AND CONTENT DELIVERY APPARATUS AND METHOD

20120102329

Content distribution and aggregation

20120102317

Secure content distribution

20090265278

Digital rights management of content when content is a future live event

20080262841

APPARATUS AND METHOD FOR RENDERING CONTENTS, CONTAINING SOUND DATA, MOVING IMAGE DATA AND STATIC IMAGE DATA, HARMLESS

20050198214

Information transmission method, information processing method, information transmission system, and data processing apparatus

20050193194

Contents transmitting apparatus and method of transmitting contents

20050193126

Information transmission method, information processing method, information transmission system, and data processing apparatus

20050188058

Information transmission method, information processing method, information transmission system, and data processing apparatus

20050005151

Optical jukebox with copy protection caching and methods of caching copy protected data