On Thursdays the USPTO publishes new pending patent applications. Both of today's Spotlight Patent Applications address various aspects of conditional access systems. Assigned to Vudu (nee Vvond), the first application discloses techniques for access control of media services over an open network. Assigned to LG Electronics (KR), the second application discloses a host device interface with a point of deployment (POD) and a method of processing broadcast data.
To ensure that media services are only provided to those authorized users or receiving devices, various conditional access mechanisms are provided to secure that media services are only received in those authorized. Different from a prior art conditional access system, an entitlement control message containing a master key can be sent directly to an ordering box. Depending on implementation, a secure session may be established between a server and an ordering box, such that all secured information including a master key may be transported. Further an ordering box does not need to possess a key or keys needed to decrypt an entitlement control message, such key(s) may be transported from time to time in a secure session established between the server and the ordering box.
20090016349, "Host device interface with a point of deployment (POD) and a method of processing broadcast data," assigned to LG Electronics (KR).
A host device interfacing with a point of deployment (POD) and a method of processing broadcast data are disclosed. Herein, an Internet Protocol (IP) physical interface unit receives an Ethernet frame including broadcast data; and a routing engine transforms the Ethernet frame to an IP packet when a destination address included in the Ethernet frame matches with an address of a pod and routs the transformed IP packet to an extended channel connected to the POD. Accordingly, it is possible to protect contents using a conditional access provided by the existing cable card and process broadcast data received on all types of transmission protocols including an IP protocol over a wired/wireless network using a channel provided for connection between the existing cable card and the host device.