Patents by Inventor Jonathan J. Stinehelfer

Jonathan J. Stinehelfer 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: 5583821
    Abstract: A storage cell includes a first bit line, a storage circuit, and a pass transistor. The storage circuit has a first storage node for holding a logic state indicative of a logic value. The pass transistor is coupled to the first bit line and the first storage node for establishing a conduction path therebetween. The pass transistor receives a bias voltage to switch the pass transistor into a substantially nonconducting state when the storage cell is not being accessed. The reverse bias on the first transistor substantially reduces the leakage current through the pass transistor.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: December 10, 1996
    Assignee: Sun Microsystems, Inc.
    Inventors: James W. Rose, Godfrey P. D'Souza, Jonathan J. Stinehelfer, James F. Testa
  • Patent number: 5471421
    Abstract: A storage cell includes a first bit line, a storage circuit, and a pass transistor. The storage circuit has a first storage node for holding a logic state indicative of a logic value. The pass transistor is coupled to the first bit line and the first storage node for establishing a conduction path therebetween. The pass transistor receives a bias voltage to switch the pass transistor into a substantially nonconducting state when the storage cell is not being accessed. The reverse bias on the first transistor substantially reduces the leakage current through the pass transistor.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: November 28, 1995
    Assignee: Sun Microsystems, Inc.
    Inventors: James W. Rose, Godfrey P. D'Souza, Jonathan J. Stinehelfer, James F. Testa
  • Patent number: 4488263
    Abstract: A current bypass for a microelectric memory, such as a static RAM, diverts word line discharge current such that the current does not flow through the memory cells of a selected word line or along an upper word line conductor. In a first embodiment, the bypass comprises a resistor R1 (R2) and a diode D10 (D20) in series and coupled between an upper word line conductor 50 and word line discharge current source V.sub.CC, and a lower word line conductor 51 and word line discharge current sink 42. In another embodiment of the invention, a transistor Q10 (Q20) is used in lieu of the diode. By bypassing current from the upper word line conductor and word line memory cells, metal migration is eliminated and narrower metal lines may be used to form the word lines. By eliminating a flow of steady state discharge current through the memory cells, memory cell current saturation is eliminated.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: December 11, 1984
    Assignee: Fairchild Camera & Instrument Corp.
    Inventors: William H. Herndon, Jonathan J. Stinehelfer
  • Patent number: 4409675
    Abstract: An address gate for a random access memory includes a pair of emitter-coupled and collector-coupled transistors, and another transistor emitter-coupled to the pair of transistors. Complimentary outputs are read at the coupled emitters of the pair of transistors and the collector of the other transistor respectively, there being an input signal applied to the base of one of the pair of transistors, and a control signal applied to the base of the other of the pair of transistors, which overrides the operation of one of the pair of transistors when the control signal is in its high state.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: October 11, 1983
    Assignee: Fairchild Camera & Instrument Corporation
    Inventor: Jonathan J. Stinehelfer
  • Patent number: 4231110
    Abstract: An electronic memory comprises a plurality of memory cells arranged in an array of rows and column, row address circuitry, column address circuitry, circuitry for sensing the logic states of the cells, and circuitry for delaying addressing of a selected column until after an addressed row has achieved a voltage level suitable for the sensing circuitry to sense. By so delaying the addressing of the selected column, the time required to read information out is reduced substantially--typically by a factor of two for a 1K or 2K.times.8-bit static memory.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: October 28, 1980
    Assignee: Fairchild Camera and Instrument Corp.
    Inventor: Jonathan J. Stinehelfer
  • Patent number: 4168490
    Abstract: Computer circuitry for rapidly discharging the deselected word lines in high-speed very low power random access memories that may be accidentally triggered by noise pulses if permitted to decay at the normal rate.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: September 18, 1979
    Assignee: Fairchild Camera and Instrument Corporation
    Inventor: Jonathan J. Stinehelfer