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.:

US 6956409 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 18, 2005

Filed:

Aug. 28, 2003
Applicants:

Harald Streif, Burlington, VT (US);

Oliver Kiehl, Charlotte, VT (US);

Mike Killian, Richmond, VT (US);

Inventors:

Harald Streif, Burlington, VT (US);

Oliver Kiehl, Charlotte, VT (US);

Mike Killian, Richmond, VT (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K005/153 ;
U.S. Cl.
CPC ...
Abstract

System and method for detecting a reference signal. A preferred embodiment comprises a latch (such as the latch) and a filter (such as the filter). The latch tracks a reference signal at its input and reflects the reference signal at its output. The filter can be coupled to the output of the latch and may inject a delay to help eliminate the effects of glitches and noise. When the reference signal reaches a specified value, a control signal from the filter causes the latch to store the reference signal. A delay imparted by the filter ensures that the latch does not store the reference signal until a finite amount of time after the reference signal reaches the specified value.


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