Patent ID: 8254576
Filing Date: 2012-08-28
Classification: H04L,H04N

Abstract:
1. A method for using a hand-held remote control device to provide conditional access to secured content renderable by an appliance, wherein the hand-held remote control device has a library of command data for commanding functional operations of a plurality of appliances including the rendering appliance, comprising: transmitting from the hand-held remote control device to the appliance a data frame wherein the data frame comprises data used by the appliance to provide access to the secured content and wherein an encryption key is used by the hand-held remote control device to encrypt at least a part of the data frame that includes the data the appliance requires to provide access to the secure content prior to transmission of the data frame to the appliance; receiving the data frame at the appliance; using at the appliance a decryption key complimentary to the encryption key to decrypt the encrypted at least a part of the data frame received at the appliance from the hand-held remote control device; and allowing the secured content to be rendered by the appliance only after the appliance determines that the data in the received, decrypted data frame includes the data the appliance requires to provide access to the secured content; and allowing the appliance to perform operations in response to received data frames from the hand-held remote control device in accordance with command data selected from the library included in the data frames excluding an operation which allows the secured content to be rendered by the appliance at least until such time as the appliance determines that data in a received, decrypted data frame is the data the appliance requires to provide access to the secured content.