×

Electric charge storage apparatus and method for an intelligent electronic device

  • US 6,687,627 B1
  • Filed: 06/29/2001
  • Issued: 02/03/2004
  • Est. Priority Date: 08/09/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. An electricity meter comprising:

  • an input for receiving operating power from an external power source;

    a metering circuit for measuring delivery of electrical energy; and

    a communications device coupled with said input and operative to receive said operating power;

    said communications device including a power supply, said power supply including;

    at least one capacitor operative to store energy from said input when said operating power is received and supply said stored energy to said communications device when said operating power is not received;

    logic coupled with said at least one capacitor and operative to monitor said power supply and signal said communications device when said stored energy runs low.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×