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:
Jun. 21, 2005
Filed:
Feb. 21, 2003
Ronnie E. Owens, Fort Collins, CO (US);
Barbara J. Duffner, Fort Collins, CO (US);
Ronnie E. Owens, Fort Collins, CO (US);
Barbara J. Duffner, Fort Collins, CO (US);
Agilent Technologies, Inc., Palo Alto, CA (US);
Abstract
Variable delay circuits and methods for delaying a waveform by an adjustable time delay are disclosed herein. One such variable delay circuit comprises a delay range limitation circuit having a first differential input, a first differential output, and a second differential output. The first differential input is configured to receive an input waveform. The first differential output is configured to output the waveform with a maximum delay, and the second differential output is configured to output the waveform with a minimum delay. The variable delay circuit further comprises a delay mixing circuit having second and third differential inputs, first and second control inputs, and a third differential output. The second differential input is connected to the first differential output. The third differential input is connected to the second differential output. The first and second control inputs are configured to receive control voltages Vand V, which are related to a selected time delay. The differential output is configured to output the waveform with the selected time delay.