×

Digital-storage filter

  • US 4,046,997 A
  • Filed: 05/04/1976
  • Issued: 09/06/1977
  • Est. Priority Date: 05/04/1976
  • Status: Expired due to Term
First Claim
Patent Images

1. A storage device for receiving a device input and processing it to produce a device output comprising:

  • a. a digital-to-analog converter, having an output port and a plurality of input terminals;

    b. means, having an input port, for maintaining a digital representation of a signal occurring at its input port at the most recent of a series of periodically occurring discrete times as an input to the terminals of the digital-to-analog converter, the signal at the output of the digital-to-analog converter thereby being equal to
    
    
    space="preserve" listing-type="equation">K.sub.3 e + E.sub.A,where K3 is a first constant, e is the input, at the most recent of the discrete times, to the means for maintaining a digital representation, and EA is a second constant; and

    c. means having an output port and first and second input ports, the output port being connected to the input port of the means for maintaining a digital representation, the first input port receiving the device input, and the second input port being connected to the output port of the digital-to-analog converter, for producing a signal at its output port equal to the sum of a first quantity proportional to signals occurring at its first input port, a second quantity proportional to signals occurring at its second input port, and a third constant.

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