Patents by Inventor David J. Block

David J. Block 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).

  • Power efficient overshoot control for magnetic recording write driver
    Patent number: 6271978
    Abstract: A circuit for a write driver including a blanking circuit to output a blanking signal to interrupt a current path. The current path is for first and second currents used to drive an inductive load in an H-bridge circuit. The blanking signal may be delayed by a programmable amount.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: August 7, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: David J. Block, Timothy G. Moran
  • Ultrasound system and method for variable transmission of ultrasonic signals
    Patent number: 5935069
    Abstract: An ultrasound system and method for variable transmission of ultrasonic signals are presented. With this method and system, ultrasonic beams can be transmitted into a region in response to a selected event in a reference signal by predicting a future occurrence of a selected event in a reference signal, transmitting a first set of ultrasonic beams into the region at the predicted future occurrence, and transmitting a second set of ultrasonic beams into the region at a selected time interval preceding the predicted future occurrence. Additional applications of the method and system are presented.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: August 10, 1999
    Assignee: Acuson Corporation
    Inventors: Paul E. Chandler, David J. Block