Sensing device for monitoring conditions at a remote...

Details Sensing device for monitoring conditions at a remote... Sensing device for monitoring conditions at a remote...

2003-08-21

2008-11-25

Woo, Stella L (Department: 2614)

Telephonic communications

Telephone line or system combined with diverse electrical...

Remote indication over telephone line

C379S106030

Reexamination Certificate

active

07457399

ABSTRACT:
The present invention is for a sensing device that monitors the conditions of a remote location. The device has a detecting means which detects the conditions at the remote location; a transmitting module that reads and remotely transmits information containing the detected conditions and the power level of a power source powering the transmitting module; a base module that receives, selectively processes and conveys the information telephonically; and an identifying means that identifies the remote location of the call before the call is completed, and thus the information can be passed without completing a call. The invention is also directed to a method of sensing conditions at a remote location in the least possible time. The invention is further improved by devising a system and technique which enables the transfer data (1 bit or more) from a remote location to a primary location utilizing, in one example, only a single telephone line at the remote location and as few as only two telephone lines at the primary location.

REFERENCES:
patent: 5303642 (1994-04-01), Durbin et al.
patent: 7221746 (2007-05-01), Onken et al.

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