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. 28, 2016
Filed:
Dec. 21, 2012
Petri Heliö, Tampere, FI;
Johannes Petrus Antonius Frambach, Nijmegen, NL;
Petri Korpi, Kangasala, FI;
Paavo Väänänen, Nokia, FI;
Petri Heliö, Tampere, FI;
Johannes Petrus Antonius Frambach, Nijmegen, NL;
Petri Korpi, Kangasala, FI;
Paavo Väänänen, Nokia, FI;
ST-Ericsson SA, Plan-les-Ouates, CH;
Abstract
A resistive/residual Charge to Digital Timer (RCDT) provides efficient, accurate measurement of short time delay between two signals, by converting the time delay to current, and measuring the charge integrated by a capacitor over a duration. In one embodiment, in quantizing this charge (measured as voltage), a residual charge is maintained cycle-to-cycle. This allows for implementation of a Noise shaping Charge to Digital Timer (NCDT), providing improved resolution over a plurality of measurement cycles. The RCDT/NCDT is particularly (but not exclusively) well suited for phase error detection in a Digital Phase Locked Loop.