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. 01, 2015
Filed:
May. 04, 2011
Kaj Nummila, Espoo, FI;
Kaarle Jaakkola, Helsinki, FI;
Miika Huusko, Helsinki, FI;
Heikki Seppä, Helsinki, FI;
Juhani Virtanen, Tampere, FI;
Juha Vattulainen, Kangasala, FI;
Kaj Nummila, Espoo, FI;
Kaarle Jaakkola, Helsinki, FI;
Miika Huusko, Helsinki, FI;
Heikki Seppä, Helsinki, FI;
Juhani Virtanen, Tampere, FI;
Juha Vattulainen, Kangasala, FI;
SMARTRAC IP B.V., Amsterdam, NL;
Abstract
A method for determining a value of an environment variable using raw data from an energetically essentially passive remote-access apparatus. A value of a first measurable quantity indicative of the environment variable is obtained from the raw data. The value of the environment variable is determined using calibration data and the value of the first measurable quantity. The accuracy is enhanced by measuring the value of the measurable quantity with a measuring signal of which strength is regulated or by obtaining a value of a second measurable quantity. The second measurable quantity is indicative of the environment variable or measurement conditions of the first measurable quantity. A method for forming calibration data for the measurements. RFID reader devices arranged to carry out the methods and energetically essentially passive remote-access apparatuses for the methods. A database that may be used with the method and a computer product including the database.