Automated meter reader device having optical sensor with automatic gain control
First Claim
Patent Images
1. A device for coupling to a meter measuring product delivery, comprising:
- an interface module adapted to couple to the meter, the interface module having an optical transceiver comprising at least one photodiode adapted to optically ascertain readings of an analog meter face; and
an interface circuit adapted to process signals from the at least one photodiode, the interface circuit adapted to selectively process the photodiode signals, wherein the interface circuit comprises an automatic gain control (AGC) circuit adapted to selectively process the photodiode signals.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention achieves technical advantages as an AMR device and method of use having an optical transceiver adapted to read analog meter faces. The transceiver advantageously includes an optical receiver having an amplifier receiving signals from photodiodes and further including an automatic gain control. A gain of the optical receiver amplifier is programmable to compensate for parameters affecting the photodiodes in the optical receiver.
-
Citations
16 Claims
-
1. A device for coupling to a meter measuring product delivery, comprising:
-
an interface module adapted to couple to the meter, the interface module having an optical transceiver comprising at least one photodiode adapted to optically ascertain readings of an analog meter face; and an interface circuit adapted to process signals from the at least one photodiode, the interface circuit adapted to selectively process the photodiode signals, wherein the interface circuit comprises an automatic gain control (AGC) circuit adapted to selectively process the photodiode signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
Specification