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. 06, 2017
Filed:
Feb. 09, 2016
Controlling a switched capacitor bank in a voltage controlled oscillator for wireless sensor devices
Cognitive Systems Corp., Waterloo, CA;
Volodymyr Yavorskyy, Waterloo, CA;
Tajinder Manku, Waterloo, CA;
Cognitive Systems Corp., Waterloo, Ontario, CA;
Abstract
In some aspects, a wireless sensor device includes a voltage controlled oscillator. The voltage controlled oscillator includes a resonator circuit, a multiplexer and control logic. The resonator circuit includes a switched capacitor bank operable to tune the resonator circuit. The multiplexer is communicatively coupled to the switched capacitor bank to select combinations of capacitor bank elements based on input values representing digital capacitance levels. The multiplexer includes a first multi-bit input configured to receive a first set of values representing a first combination of the capacitor bank elements; a second multi-bit input configured to receive a second set of values representing a second combination of the capacitor bank elements; and a multi-bit output configured to communicate the first or second set of values to the switched capacitor bank. The control logic is configured to generate the first and second sets of values for each of the digital capacitance levels.