Patent ID: 7991997

Claim:
A packetized transport stream stored in a non-transitory computer readable medium and suitable for transmitting preselected viewing content in accordance with a predetermined frame sequence, comprising: a plurality of content frames having a uniform type, each of said content frames including: a transport frame payload being encrypted and including the preselected viewing content; and an unencrypted transport frame header for enabling a selected content frame to be extracted without decrypting said transport frame payload of the selected content frame and including a packet identifier field for indicating whether said transport frame payload is encrypted, a payload unit start indicator field for indicating whether said transport frame payload has a packetized elementary stream header, and a transport priority field for indicating whether the selected content frame comprises an index frame and for supporting smooth jump operations within the packetized transport stream by enabling searches for index frames among said content frames within the predetermined frame sequence without decoding said transport frame payloads of said content frames, none of the preselected viewing content being included in said transport frame header, said transport frame payload following said transport frame header and comprising a remainder of each content frame, wherein all of the preselected viewing content in the packetized transport stream remains in an encrypted format during transmission such that the preselected viewing content is protected against unauthorized access without impairing presentation of the preselected viewing content.