Patent ID: 8526613

Claim:
A method of providing a transport stream, which includes a group of PID streams, wherein a PID stream is a stream of packets having a common packet identifier (PID) associated therewith, with a predetermined maximum bit rate, the method is implemented in a receiver-transmitter adapted to receive and transmit transport streams, the method comprising: receiving an input transport stream having a plurality of PID streams included therein, wherein packets in each of the PID streams have a respective PID value; determining at the receiver-transmitter whether to decrypt a first at least one PID stream of the plurality of received PID streams based on the PID value of the first at least one PID stream and an encrypt/decrypt look-up table; decrypting at the receiver-transmitter the first at least one PID stream based on the determination of whether to decrypt; statistically multiplexing at the receiver-transmitter a second at least one PID stream of the plurality of received PID streams into a group of PID streams, wherein the bit rate of the group of PID streams does not exceed the predetermined maximum bit rate; encrypting a third at least one PID stream of the plurality of received PID streams; transmitting from the receiver-transmitter a fourth at least one PID stream of the plurality of received PID streams from at least one transmitter; determining at the receiver-transmitter whether to statistically multiplex the second at least one PID stream; and the statistically multiplexing at the receiver-transmitter being based on the determination of whether to statistically multiplex; wherein the determining whether to statistically multiplex is based on the PID value of the second at least one PID stream and a stat-mux lookup table.