Pulse or digital communications – Transmitters
Reexamination Certificate
2008-10-27
2011-12-20
Ahn, Sam K (Department: 2611)
Pulse or digital communications
Transmitters
Reexamination Certificate
active
08081708
ABSTRACT:
A reradiation apparatus for terrestrial digital broadcasting includes plural antennas provided on a train and mutually spaced along the running direction of the train, plural receiving processing parts provided corresponding to the antennas, a master selecting part which sets the receiving processing part corresponding to the antenna provided at the rear of the train as a master receiving processing part, a monitoring part which monitors a received state of the terrestrial digital broadcasting signal received by the master receiving processing part and outputs a supervisory signal, a switching part, and a reradiation unit. The switching part chooses the terrestrial digital broadcasting signal received by the master receiving processing part or the terrestrial digital broadcasting signal received by another receiving processing part based on the supervisory signal output by the monitoring part. The reradiation unit reradiates the chosen terrestrial digital broadcasting signal in the train.
REFERENCES:
patent: 6738641 (2004-05-01), Elsasser
patent: 2004-56697 (2004-02-01), None
Office Action issued Feb. 24, 2011 in Canada Application No. 2,643,204.
Mitsuhashi Masaru
Ono Hideki
Ahn Sam K
Kabushiki Kaisha Toshiba
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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