×

Multiplier and neural network synapse using current mirror having low-power mosfets

  • US 5,914,868 A
  • Filed: 09/29/1997
  • Issued: 06/22/1999
  • Est. Priority Date: 09/30/1996
  • Status: Expired due to Term
First Claim
Patent Images

1. A multiplier producing a first current and a second current and then outputting a linear output current by subtracting said second current from said first current, said multiplier comprising:

  • first input means having a first MOS transistor which generates said first current in response to a first input voltage, wherein said first MOS transistor operates in a nonsaturation region thereof;

    a first current mirror including a plurality of MOS transistors to output said first current, being coupled to said first MOS transistor;

    a second current mirror including a plurality of MOS transistors to output a second current which is out of phase with said first current;

    second input means having a second MOS transistor which generates said second current in response to a second input voltage, wherein said second MOS transistor operates in a nonsaturation region thereof; and

    a third current mirror including a plurality of MOS transistors to output said second current, being coupled to said second MOS transistor wherein said third current mirror is coupled to said second current mirror.

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