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. 23, 2015
Filed:
Jun. 05, 2011
Dariusz Koscielnik, Krakow, PL;
Marek Miskowicz, Krakow, PL;
Dariusz Koscielnik, Krakow, PL;
Marek Miskowicz, Krakow, PL;
Abstract
The solution according to the invention consisting in conversion of a time interval to a digital word of a number of bits equal to n by the use of the array (A) of binary-scaled capacitors (C, . . . , C) is characterized in that the time interval whose both start and end are detected by the control module (CM) is first mapped to a portion of electric charge delivered by the current source (I) and successively accumulated in the capacitors ((C, . . . , C)) in the order of decreasing capacitances starting from the capacitor (C) having the highest capacitance value in the array, and when the control module (CM) detects the end of the time interval, the charge accumulated in the capacitor (C) charged recently is successively transferred by the use of the current source (I) to the capacitors of lower capacitance values. The process of charge transfer is controlled by the control module (CM) on the basis of the output signals of the comparators (K) and (K) without the use of a clock while the value one is assigned to these bits (b, . . . , b) in the digital output word that correspond to the capacitors (C, . . . , C) on which the reference voltage (U) of a desired value has been obtained, and the value zero is assigned to the other bits.