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:
May. 08, 2007
Filed:
Mar. 19, 2003
Maria Agoston, Beaverton, OR (US);
William Bruce Harrington, Beaverton, OR (US);
Scott L. Halsted, Tigard, OR (US);
Maria Agoston, Beaverton, OR (US);
William Bruce Harrington, Beaverton, OR (US);
Scott L. Halsted, Tigard, OR (US);
Tektronix, Inc., Beaverton, OR (US);
Abstract
A variable persistence waveform database is generated by defining a First-In-First-Out (FIFO) time-ordered queue buffer for maintaining a selected number of waveform records. Digital data samples of a measurement signal are acquired and stored in a plurality of waveform records in the FIFO time-ordered queue buffer. Counts of the digital data samples for the plurality of waveform records are accumulated in a waveform database. Upon filling FIFO time-ordered queue buffer with waveform records, the digital data samples of the oldest acquired waveform record are subtracted from the accumulated counts of the waveform database and deleted from the FIFO time-ordered queue buffer and the digital data samples of the newest acquired waveform record are stored in the FIFO time-ordered queue buffer and added to the accumulated counts in the waveform database.