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:
Sep. 08, 2020
Filed:
Nov. 21, 2016
Nokia Technologies Oy, Espoo, FI;
Michael Astley, Cambridge, GB;
Nokia Technologies Oy, Espoo, FI;
Abstract
An apparatus comprising: a passive array () of resistive elements (); a row selector switch () and a column selector switch () configured to respectively connect a particular row and a particular column of resistive elements to ground; and a feedback column selector switch () configured to connect all columns of resistive elements to a voltage source, except for the particular column connected to ground by the column selector switch; the voltage source configured to apply a voltage to the columns of resistive elements, the voltage matching a voltage dropped over the resistive element connected in circuit by the row and column selector switches; and further comprising: a row selector switch compensation circuit (), a column selector switch compensation circuit () and/or a feedback column selector switch compensation circuit () each configured to apply a voltage across a corresponding dummy element equal and opposite to a voltage dropped over the corresponding selector switch.