Patent ID: 8451868
Filing Date: 2013-05-28
Classification: H04H,H04N

Abstract:
1. A digital radio broadcast transmitter system configured to encode and transmit first media content, second media content and triggering instructions to a digital radio broadcast receiver such that the triggering instructions arrive for immediate execution to trigger immediate rendering of the second media content in synchronization with the first media content, comprising: a processing system; and a memory coupled to the processing system, wherein the processing system is configured to execute steps comprising: determining at the processing system a first value corresponding to a time at which a frame including first media content is to be transmitted by a digital radio broadcast transmitter; determining at the processing system a second value corresponding to a time at which first media content transmitted in the frame is to be rendered by a digital radio broadcast receiver based on a first latency, wherein the first latency is based on an estimated time for processing the first media content via a first signal path through the digital radio broadcast transmitter; determining at the processing system a third value corresponding to a time at which second media content would be rendered by the digital radio broadcast receiver based on a second latency, wherein the second latency is based on an estimated time for processing the second media content via a second signal path through the digital radio broadcast transmitter, and wherein the second latency is different than the first latency; determining at the processing system a channel data capacity for broadcasting the second media content via digital radio broadcast transmission; processing the second media content at the processing system based on the first value, second value, third value and the channel data capacity to determine a time at which second media content is to be transmitted to the digital radio broadcast receiver, so as to be received at a digital broadcast radio receiver for rendering in synchronization with the first media content at the digital radio broadcast receiver; generating triggering instructions based on the first value, second value, third value and the channel data capacity to trigger the rendering of the second media content in synchronization with the first media content at the digital radio broadcast receiver, such that the triggering instructions arrive at the digital radio broadcast receiver for immediate execution to trigger immediate rendering of the second media content in synchronization with the first media content; and communicating to the digital radio broadcast transmitter, the first value, first media content, second media content, and the triggering instructions; wherein the triggering instructions are transmitted in an ID3 frame with program service data.