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:
Dec. 02, 2014
Filed:
Sep. 11, 2012
Gregory S. Kanter, Chicago, IL (US);
Daniel Reilly, Chicago, IL (US);
Shawn X. Wang, Temple City, CA (US);
Gregory S. Kanter, Chicago, IL (US);
Daniel Reilly, Chicago, IL (US);
Shawn X. Wang, Temple City, CA (US);
Nucript LLC, Evanston, IL (US);
Abstract
An apparatus and method are disclosed to digitize an input electrical signal. A sequence of nonuniformly spaced optical pulses impinges an optical modulator, where the pulses are modulated by the electrical input signal, the optical pulses being detected by one or more photoreceivers, the photoreceiver outputs being electrically sampled in analog-to-digital converters and then processed in a digital signal processor (DSP) in order to measure the electrical input signal. The series of nonuniform pulses are formed by interleaving L uniformly spaced pulse streams each of repetition period T and where f, the maximum allowable spectral frequency of the input electrical signal, is greater than 4·L·f/2, where f=1/T.