H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/04 (2006.01) H04H 20/67 (2009.01) H04J 3/06 (2006.01) H04H 3/00 (2006.01)
Patent
CA 2072364
A method is described for synchronizing message transmissions in a multi-re- gional simulcast transmitter system. A master controller (116) couples to regional controllers (106) for enabling regional message trans- missions. The master con- troller (116) also generates a first delay measurement sig- nal which is coupled to a first regional controller (106) which initiates the trans- mission and then measures the propagation delay within the first transmission region. The master controller (116) next generates a second de- lay measurement signal which is coupled to a second regional controller (106'), in an adjacent transmission region. The first regional controller (106) also measures the propagation delay within the second trans- mission region. An intra-regional differential propagation delay is computed from the measurements of the propagation delays measured from the first and second transmission regions. The transmission delays for each regional transmitter (104) are then ad- justed to equalize both inter-regional and intra-regional differential transmission delays.
Gowling Lafleur Henderson Llp
Motorola Inc.
LandOfFree
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