Patents by Inventor Robert Harrison Reed

Robert Harrison Reed has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6011422
    Abstract: A multiplier and corresponding method are provided for amplifying a voltage difference between a first input voltage and a second input voltage, the multiplier being implemented with Bipolar Junction Transistor technology having high emitter resistance. The multiplier includes a first bipolar input transistor having high emitter resistance that receives the first input voltage and a second bipolar input transistor having high emitter resistance that receives the second input voltage. The multiplier also includes a first current source for generating a first current that flows through said first bipolar input transistor, a current mirror for producing a second current that is substantially equal to said first current and flows through said second bipolar input transistor.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: January 4, 2000
    Assignee: Delco Electronics Corporaiton
    Inventors: Dennis Michael Koglin, Robert Harrison Reed
  • Patent number: 5966039
    Abstract: A supply and temperature dependent linear signal generating circuit includes four transistors each having a unique current flowing therethrough and connected together to form a current multiplier. A first one of the currents is designed to be supply dependent and preferably adjustable in magnitude, a second one is designed to exhibit a specific temperature dependence, the third is designed to be both supply and temperature independent and the fourth current is defined as a ratio of the first three. The fourth current is, in one embodiment, impressed upon a network defined by a resistor divider and a voltage source to thereby define an output voltage V(T) that is both supply and temperature dependent according to the following equation:V(T)=KX*(T-TN),wherein KX is the slope of V(T) over temperature, T is the operating temperature and TN is a reference temperature at which V(T) is equal to zero. Preferably, TN is adjustable via the adjustable magnitude of the first current.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: October 12, 1999
    Assignee: Delco Electronics Corpooration
    Inventors: Dennis Michael Koglin, Robert Harrison Reed
  • Patent number: 5796655
    Abstract: A memory cell having programming voltage margin verification is provided. The memory cell includes a voltage comparator having a differential input with first and second inputs and bias circuitry for generating a differential input voltage. A voltage offset is applied to the second input of the comparator to provide an input offset voltage. A programming voltage is received for programming the memory cell and the memory cell provides an output signal. To verify an unprogrammed state voltage margin of the memory cell, a margin detection circuitry receives a verification check signal and the output is monitored to determine whether the unprogrammed state voltage margin is proper. To verify a proper programmed state voltage margin of the memory cell, current is sensed through the programming input and a determination of a proper programmed state voltage margin is determined as a function of the sensed current.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: August 18, 1998
    Assignee: Delco Electronics Corporation
    Inventors: Robert Harrison Reed, Dennis Michael Koglin, Mark Billings Kearney