Patents Assigned to Marconi Instruments, Inc.
  • Data logging apparatus
    Patent number: 5010560
    Abstract: In data logging applications an apparatus for real-time stamping data includes a reference time base, a short stopwatch circuit operative for generating a short-time stamp, and a long stopwatch circuit operative for generating at intervals a long-time stamp. Data to be logged with the short-time stamp is combined therewith and stored. A controller circuit controls the storage of the data and of the long-time and the short-time stamps. The controller circuit stores the long-time stamp at predetermined intervals.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: April 23, 1991
    Assignee: Marconi Instruments, Inc.
    Inventors: Mark A. Janney, Roger Newey, Irwin J. Robinson, III