×

Receiver particularly for a meter-bus

  • US 7,973,561 B2
  • Filed: 04/05/2006
  • Issued: 07/05/2011
  • Est. Priority Date: 04/05/2006
  • Status: Active Grant
First Claim
Patent Images

1. A receiver for sensing current changes on a bus where data is transmitted on the bus by modulating a voltage on the bus, comprising:

  • first means coupled to the bus for converting the current changes on the bus to an input signal;

    second means for amplifying the input signal coupled to the first means;

    a pair of capacitors each having a first and second terminal, coupled in series between the first means and second mean the first terminal of one of the capacitors coupled to received the input signal from the first means and the second terminal of the other capacitor coupled to provide the input signal to the second means; and

    a gating circuit activated by transmissions on the bus, for disabling the receiver during transmissions by grounding a node between the pair of capacitors comprising the second terminal of the one capacitor and the first terminal of the other capacitor, and for reestablishing bias points in the receiver following a transmission.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×