Delivery of information related to digital rights management (DRM) in a terrestrial broadcast system

Patent metadata

Field	Value
Publication number	US-10743069-B2
Application number	US-201816214933-A
Country	US
Kind code	B2
Filing date	Dec 10, 2018
Priority date	Dec 10, 2018
Publication date	Aug 11, 2020
Grant date	Aug 11, 2020

Abstract

Techniques are described for efficient delivery and reception of information, such as an Entitlement Management Message (EMM), that is related to Digital Rights Management (DRM) in a terrestrial broadcast system such as ATSC 3.0.

First claim

What is claimed is:

1. A method comprising:
calculating, at a reception apparatus, one or more entitlement reception opportunity periods based at least in part on combining an identification of the reception apparatus with information received from a service provider associated with a broadcast signal;
based on determining one or more entitlement reception opportunity periods, configuring a receiver in the reception apparatus to receive the broadcast signal during at least one of the entitlement reception opportunity periods;
accessing at least one digital rights management (DRM) element in the broadcast signal during the at least one of the entitlement reception opportunity periods; and
using the DRM element to configure the reception apparatus to play content from the service provider.

2. The method of claim 1 , wherein the information received from the service provider comprises transmission scheduling information.

3. The method of claim 2 , wherein the transmission scheduling information comprises a number of days with entitlement refresh windows during which the DRM element is broadcast.

4. The method of claim 2 , wherein the transmission scheduling information comprises a duration of at least one entitlement refresh window during which DRM element is broadcast.

5. The method of claim 2 , wherein the transmission scheduling information comprises a period of at least one repetition cycle of DRM element broadcast.

6. The method of claim 2 , wherein the broadcast signal comprises an advanced television systems committee (ATC) 3.0 signal.

7. The method of claim 1 , wherein the DRM element comprises at least one Entitlement Management Message (EMM).

8. A computer memory that is not a transitory signal and that comprises instructions executable by at least one processor to:
calculate, at a reception apparatus, one or more entitlement reception opportunity periods based at least in part on combining an identification of the reception apparatus with information received from a service provider associated with a broadcast signal;
based on determining one or more entitlement reception opportunity periods, configure a receiver in the reception apparatus to receive the broadcast signal during at least one of the entitlement reception opportunity periods;
access at least one digital rights management (DRM) element in the broadcast signal during the at least one of the entitlement reception opportunity periods; and
use the DRM element to configure the reception apparatus to play content from the service provider.

9. The computer memory of claim 8 , wherein the information received from the service provider comprises a number of days with entitlement refresh windows during which the DRM element is broadcast.

10. The computer memory of claim 8 , wherein the information received from the service provider comprises a duration of at least one entitlement refresh window during which the DRM element is broadcast.

11. The computer memory of claim 8 , wherein the information received from the service provider comprises a period of at least one repetition cycle of DRM element broadcast, or a duration of at least one entitlement refresh window during which a DRM element is broadcast, or both a period of at least one repetition cycle of DRM element broadcast and a duration of at least one entitlement refresh window during which a DRM element is broadcast.

Assignees

• Sony Corp

Inventors

• Hearty Paul Joseph
• Eyer Mark Kenneth

Classifications

• H04N21/4627 Primary

  Rights management {associated to the content (security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08)} · CPC title

• H04N21/26606 Primary

  for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM] (arrangements for conditional access to broadcast information or to broadcast-related services H04H60/14) · CPC title

• H04N21/4623

  Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message] {(arrangements for conditional access to broadcast information or to broadcast-related services H04H60/14)} · CPC title