Patent ID: 8607357
Filing Date: 2013-12-10
Classification: H04H,H04L,H04N

Abstract:
1. A receiving apparatus, comprising: a memory unit having a first predetermined memory area accessible by a first provider providing first contents and a second predetermined memory area accessible by a second provider providing second contents; a receiving unit for receiving a first access right file transmitted along with the first contents from the first provider and receiving a second access right file transmitted along with the second contents from the second provider, the first access right file indicating whether the first predetermined memory area is accessible by the second provider, the second access right file indicating whether the second predetermined memory area is accessible by the first provider; an output controller for outputting the first contents or the second contents; a memory control unit for storing first information associated with the first contents in the first predetermined memory area and storing second information associated with the second contents in the second predetermined memory area; and a switching unit for switching from outputting tile first contents to outputting the second contents, wherein the switching unit includes: wherein a first certificate to validate the first access right file and a second certificate to validate the second access right file are stored in the memory, unit, wherein the receiving unit receives first signature data transmitted along with the first contents for guaranteeing validity of the first contents and receives second signature data transmitted along with the second contents for guaranteeing validity of the second contents, wherein the switching unit further includes a validating unit for validating the first access right file using, the first certificate and the first signature data and validating the second access right file using the second certificate and the second signature data, and wherein the determining unit performs the determining when the first access right file is valid.