Patent ID: 7561897

Claim:
A broadcast transmitter, comprising: an input-output controller coupled to a wireless satellite input interface and coupled to a buffer memory; a control processor coupled to said input-output controller and coupled to a local input interface; a precision time base coupled to said control processor; an encoding engine coupled to said input-output controller, said control processor, and to a first memory; wherein the encoding engine: encodes a plurality of extracted data packets into a first portion of encoded data streams for transmission at a first latency and a second portion of encoded data streams for transmission at a second latency, wherein the second latency is lower than the first latency; and interleaves the first and second portions of encoded data streams over a broadcast frame that includes sub frames, wherein: each sub frame includes data associated with the first portion and data associated with the second portion, interleaved together, and each of the extracted data packets associated with the first portion is interleaved across multiple subframes; and a subcarrier signal generator, coupled to said encoding engine, said control processor, a second memory, and to a subcarrier output, wherein the subcarrier signal generator is configured to transmit a signal in response to a message scheduled to a mobile device.