Patent ID: 8281359

Claim:
A method of transcoding packetized media data (PMD) for a personal computer-based rendering device for presentation on a display, comprising the steps of: receiving, in a dongle removably coupled to the rendering device, the PMD encrypted according to a first encryption technique complying with a broadcast encryption standard; further encrypting, in the dongle, the encrypted PMD, according to a second encryption technique; transmitting the further encrypted PMD from the dongle to the rendering device; receiving the further encrypted PMD in the dongle; decrypting, in the dongle, the further encrypted PMD to produce the received encrypted PMD; decrypting, in the dongle, the received encrypted PMD to produce decrypted PMD; transcoding, in the dongle, the decrypted PMD into a rendering device-compatible format; encrypting, in the dongle, the transcoded PMD according to a second encryption technique using an identifier unique to the dongle; and transmitting the encrypted and transcoded PMD from the dongle to the rendering device having a decryptor configured to decrypt the encrypted and transcoded PMD to produce the decrypted PMD.