Patents by Inventor Daniel P. Greenberg

Daniel P. Greenberg 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).

  • Integrated interface structure
    Patent number: 9875956
    Abstract: The present disclosure relates to interface structures and, more particularly, to integrated interface structures with both parallel and serial interfaces and methods of manufacture. The integrated interface structure includes: a substrate; a plurality of serial interface connections integrated on the substrate; and a plurality of parallel interface connections on the integrated substrate and within spaces between sets of the plurality of serial interface connections.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: January 23, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Wolfgang Sauter, Mark W. Kuemerle, Daniel P. Greenberg, Eric W. Tremble
  • Test circuit for serial link receiver
    Patent number: 8363736
    Abstract: A test circuit for a serial link receiver includes a first current source coupled to a first input of the serial link receiver, and a second current source coupled to a second input of the serial link receiver. The first current source is symmetrically matched to the second current source. A first switch of the first current source is turned on to permit a charge-retaining mechanism thereof to be charged. A second switch of the first current source is turned on to permit the retained charge retained to be asserted on the first input. The charge turns on a control switch of the first current source, through which the charge is asserted on the first input. A charge-draining mechanism of the first current source is turned on to thereafter permit the charge to be drained in a controlled manner after the charge has been asserted.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: January 29, 2013
    Assignee: International Business Machines Corporation
    Inventors: Hayden C. Cranford, Daniel P. Greenberg, Joseph M. Stevens, Westerfield J. Ficken
  • TEST CIRCUIT FOR SERIAL LINK RECEIVER
    Publication number: 20110156663
    Abstract: A test circuit for a serial link receiver includes a first current source coupled to a first input of the serial link receiver, and a second current source coupled to a second input of the serial link receiver. The first current source is symmetrically matched to the second current source. A first switch of the first current source is turned on to permit a charge-retaining mechanism thereof to be charged. A second switch of the first current source is turned on to permit the retained charge retained to be asserted on the first input. The charge turns on a control switch of the first current source, through which the charge is asserted on the first input. A charge-draining mechanism of the first current source is turned on to thereafter permit the charge to be drained in a controlled manner after the charge has been asserted.
    Type: Application
    Filed: March 10, 2011
    Publication date: June 30, 2011
    Applicant: International Business Machines Corporation
    Inventors: Hayden C. Cranford, Daniel P. Greenberg, Joseph M. Stevens, Westerfield J. Ficken
  • Test circuit for serial link receiver
    Patent number: 7940846
    Abstract: A test circuit for a serial link receiver includes a first current source coupled to a first input of the serial link receiver, and a second current source coupled to a second input of the serial link receiver. The first current source is symmetrically matched to the second current source. A first switch of the first current source is turned on to permit a charge-retaining mechanism thereof to be charged. A second switch of the first current source is turned on to permit the retained charge retained to be asserted on the first input. The charge turns on a control switch of the first current source, through which the charge is asserted on the first input. A charge-draining mechanism of the first current source is turned on to thereafter permit the charge to be drained in a controlled manner after the charge has been asserted.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: May 10, 2011
    Assignee: International Business Machines Corporation
    Inventors: Hayden C. Cranford, Jr., Daniel P. Greenberg, Joseph M. Stevens, Westerfield J. Ficken
  • TEST CIRCUIT FOR SERIAL LINK RECEIVER
    Publication number: 20080165837
    Abstract: A test circuit for a serial link receiver includes a first current source coupled to a first input of the serial link receiver, and a second current source coupled to a second input of the serial link receiver. The first current source is symmetrically matched to the second current source. A first switch of the first current source is turned on to permit a charge-retaining mechanism thereof to be charged. A second switch of the first current source is turned on to permit the retained charge retained to be asserted on the first input. The charge turns on a control switch of the first current source, through which the charge is asserted on the first input. A charge-draining mechanism of the first current source is turned on to thereafter permit the charge to be drained in a controlled manner after the charge has been asserted.
    Type: Application
    Filed: January 8, 2007
    Publication date: July 10, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hayden C. Cranford, Daniel P. Greenberg, Joseph M. Stevens, Westerfield J. Ficken