Title:
AUTOMATIC DELAY COMPENSATED SIMULCASTING SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO2008042694
Kind Code:
A9
Abstract:
A system and method of synchronizing transmissions in a simulcast system by continuously adjusting the signal transmission delay. Timing information that includes a GPS timestamp is continuously generated at a source site, encoded into a timing packet which along with a content signal can be transported over a network link such as T1/E1 or a packet switched network to multiple transmitter sites. Once received at a transmitter site, the timing packet along with the content signal is delayed by an adjustable delay. The GPS timestamp in the received timing packet is compared to a GPS timestamp that: is generated at the transmitter site upon arrival of the timing packet. Based on a variance between that comparison and the value of a user-specified target delay, the delay of the received signal is adjusted to synchronize signal transmissions in the simulcast system.
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Inventors:
KIM JUNIUS A (US)
PARIKH KEYUR R (US)
PARIKH KEYUR R (US)
Application Number:
PCT/US2007/079677
Publication Date:
September 04, 2008
Filing Date:
September 27, 2007
Export Citation:
Assignee:
HARRIS CORP (US)
International Classes:
H04J3/06; H04H20/67; H04H3/00
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