Telecommunications – Receiver or analog modulated signal frequency converter – Measuring or testing of receiver
Patent
1997-07-09
2000-08-08
Tsang, Fan S.
Telecommunications
Receiver or analog modulated signal frequency converter
Measuring or testing of receiver
455 77, 4551582, 455345, 455115, 455 99, 3404255, 340434, 340431, 334 86, 116263, H04Q 734, H04Q 732
Patent
active
061013773
ABSTRACT:
A method for improving multi-channel radio communication. Firstly, providing a motor vehicle having a multi-channel radio. Secondly, mounting a visual display device to the motor vehicle in such a manner that the visual display device is visible from a distance to persons observing the motor vehicle. Thirdly, displaying a number representing a channel frequency to which the multi-channel radio is tuned on the visual display device.
REFERENCES:
patent: 3750138 (1973-07-01), Burgan et al.
patent: 4112376 (1978-09-01), Fosnough et al.
patent: 4264979 (1981-04-01), Gutowski
patent: 4468814 (1984-08-01), Field
Rochette Gaetan
Weiss Kelly
Wengreniuk Greg
Ferguson Keith
Moller John Garfield
Rochette Gaetan
Tsang Fan S.
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