Weather data transmitting system

Details Weather data transmitting system Weather data transmitting system

1987-08-06

1989-06-13

Caldwell,, Sr.

Communications: electrical

Continuously variable indicating

Condition responsive

34087016, 455 39, 455 70, G08C 1912

Patent

active

048396451

ABSTRACT:
A system is disclosed for transmitting a sensed temperature from a transmitter to a remote receiver over a modulated carrier through the atmosphere. The transmitter and the receiver are battery powered and include timing circuitry having low power consumption. The transmitter and the receiver are both cyclically turned on for a relatively short period and off for a relative long period with the receiver's on cycle being synchronized with the occurrence of the transmission of the modulated carrier. The receiver further employs techniques to minimize the effect of noise on the reception of the transmitted data which can occur from extraneous signal sources broadcasting in the same frequency band or from environmental noise.

REFERENCES:
patent: 4163216 (1979-07-01), Arpino
patent: 4319241 (1982-03-01), Mount
patent: 4509199 (1985-04-01), Ichihara
patent: 4577315 (1986-03-01), Otsuka
patent: 4635055 (1987-01-01), Fernandes et al.
patent: 4680585 (1987-07-01), Fasching

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