The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 1981
Filed:
Sep. 18, 1979
Thomas P Dagostino, Beaverton, OR (US);
Tektronix, Inc., Beaverton, OR (US);
Abstract
A signal-envelope display system for a digital oscilloscope includes a memory for storing minimum and maximum signal values in adjacent storage locations, an address counter for sequentially addressing the memory, and a control circuit for selecting the least significant bit of the address count signal arriving at the memory from the least significant bit of the address count signal, a fixed logical low, or a fixed logical high to there by select every address location of the memory, or only the even locations, or only the odd locations over a given count cycle. The values retrieved from memory are converted to analog values and a vector generator connects the analog values to provide connected minimum and maximum values, connected maximum values, and connected minimum values for display. A signal-envelope display is provided by superposing the three displays.