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I&M Society Member Patents

We would like to recognize I&M Society members’ technical achievements and innovations that have resulted in issued patents during the current calendar year. If you have already been issued a patent in 2018 we wish to add it to the list. To do so please fill out the form here and we will add the information to the website. In addition, if you are issued a patent in the future please use the same link to inform us and we will be happy to add it to the list as we intend to continuously update the information in this list. 


To see patents from previous years, see below:

I&M Society Member Patents - 2016

I&M Society Member Patents - 2017


I&M Society Member Patents - 2018


Patent Title
High-Reliability Holdover Method and Topologies

Patent Number & Issued Date
US 9362926
November 27, 2019

Inventor Names
William J. Dickerson*, Robert T. Dickerson
*Indicates IMS member

Abstract
System and methods for a clock system disciplined to an external reference. In one embodiment, the clock includes a flywheel oscillator controlled by the external reference and a free running holdover oscillator. The holdover oscillator provides increased accuracy during periods of holdover when the external reference is not available. In a further embodiment, the flywheel oscillator is additionally controlled by a phase-locked loop with the holdover oscillator frequency as input, and a control switch for switching the flywheel oscillator to analog control if the phase-locked loop exhibits a fault.
 
Assignee/Applicant
Arbiter Systems, Inc.
 
Link(s) to Patent
US Patent

Patent Title
Airborne Systems And Detection Methods Localisation And Production Of Images Of Buried Objects

Patent Number & Issued Date
US 20190033441
January 31, 2019

Inventor Names
Borja Gonzalez Valdes, Yuri Alvarez Lopez, Ana Arboleya, Yolanda Rodriguez Vaqueiro, Maria Garcia Fernandez, Fernando Las-Heras Andres, Antonio Garcia Pino|

Abstract
The invention relates to airborne systems and methods for the detection, localisation and production of images of buried objects and for the characterisation of the composition of the subsurface. The systems comprise at least one aerial module with a radar unit that emits and/or captures radar signals, a positioning and guidance system, the accuracy of which is equal to or less than 3 cm, and a ground station with a flight control system and a unit for processing radar signals where radar signal processing algorithms are applied. The invention also relates to a method for the detection, localisation and production of images of buried objects, and to a method for characterising the composition of the sub-surface. The invention is applicable in sectors where the detection of buried objects is required, for example in civil applications (detection of anti-personnel mines), inspection of tubing or in archeology.

Assignee/Applicant
University of Oviedo and Unviersity of Vigo (Spain)

Link(s) to Patent
US Patent


Patent Title
Electric Welding Machine Having A Power Circuit To Limit Voltage Fluctuations Induced In The Mains

Patent Number & Issued Date
EP 2329904 (B1)
August 7, 2015

Inventor Names
Gabrio Superti-Furga, Enrico Tironi, Sergio Toscani*
*Indicates IMS member

Abstract
The present invention concerns an electric welding machine having a power circuit for supplying power to the welding machine from the mains. The power circuit comprises: an AC/DC converter stage (2), designed to receive an AC voltage (V AC ) from said mains at its input and to generate a first DC voltage (V rect ) at its output; an up converter stage (3), designed to receive said first DC voltage (V rec t) at its input and to generate a second DC voltage (V DC ) at its output; an output stage (10) in electric communication with said up converter stage (3), and designed to generate an output voltage (V sal ) suitable for the welding process at its output, and a pair of output terminals (4A, 4B) designed to have a load connected thereto, said output voltage (V sal ) being available at said output terminals. The invention is characterized in that it comprises control means (6) for controlling said up converter stage (3) as a function of the value of a reference signal (Iref), check means (20) being provided for generating said reference signal (Iref), which are configured to receive at their input at least the value of said second voltage (V DC ) on said energy accumulation means (5), so that said energy accumulation means (5) are able to absorb power changes of said mains as said output voltage (V sal ) changes, due to the power absorbed by the load, to limit a voltage fluctuation induced in said mains.

Assignee/Applicant
CEA Costruzioni Elettromeccaniche Annettoni S.p.A., Politecnico di Milano

Link(s) to Patent
European Patent


Patent Title
Device For Monitoring A Current Of A Primary Conductor With Respect To A Predetermined Current Threshold, And Related Trip Assembly And Switching Device  

Patent Number & Issued Date
US 10043627 (B2)
August 7, 2018

Inventor Names
Emanuele Dorella, Tatiana Escallada Casas, Sergio Toscani*
*Indicates IMS member

Abstract
A device for monitoring a current in a primary conductor with respect to a predetermined current threshold, comprising: - a magnetic circuit associable to the primary conductor and comprising a fixed part and an element which can rotate about a rotation axis; - at least one spring operatively connected to the rotating element for keeping it in a first position, the spring being elastically deformable along a linear axis; and - sensing means operatively associated to the magnetic circuit. The magnetic circuit is configured in such a way that the rotating element rotates from the first position to a second position when the current in the primary conductor exceeds the predetermined current threshold, so as to at least reduce one or more air gaps between the rotating element and the fixed part and to elongate the spring from a first length to a second length. The sensing means are configured for generating an output electrical signal caused by the rotation of the rotating element from the first position to the second position. The at least one spring is operatively connected to the rotating element in such a way to tilt towards the rotation axis moving above a surface of the rotating element which is transversal to the rotation axis, during the rotation of the rotating element from the first position to the second position.

Assignee/Applicant
ABB S.p.A.

Link(s) to Patent
US Patent


Patent Title
Airborne System and Method for the Characterisation and Measurement of Radiating Systems or Antennas

Patent Number & Issued Date
ES 2639687B8
Issued July 9, 2018

Inventor Names
Yuri Alvarez Lopez *, Maria Garcia Fernandez, Fernando Las-Heras Andres, Ana Arboleya Arboleya, Borja Gonzalez Valdez, Yolanda Rodriguez Vaqueiro, Antonio Garcia Pino
*Indicates IMS member

Abstract
The invention relates to an airborne system and method for the characterization and measurement of radiating systems or antennas, comprising: an aerial module including a unit for measuring electromagnetic emissions, which captures the electromagnetic field radiated by the radiating system or antenna, and a positioning and guiding system with an accuracy equal to or less than 3 cm; and a ground station including a unit for processing the electromagnetic emission measurements, which processes the measurements using a set of algorithms for processing electromagnetic emission measurements. The invention also relates to a method for measuring and characterising radiating systems or antennas. The invention is suitable for use in sectors that require antennas to be characterised and measured, such as, for example, radar and radio navigation facilities, terrestrial- and satellite-based telecommunications systems, or terrestrial broadcasting facilities.

Assignee/Applicant
University of Oviedo and Unviersity of Vigo (Spain)

Link(s) to Patent

Spanish Patent


Patent Title
IR Detector Array Device

Patent Number & Issued Date
US 20170221959A1
Issued August 3, 2017

Inventor Names
Florin Udrea, Syed Zeeshan ALI, Richard Henry Hopper, Julian Gardner, Andrea De Luca*
*Indicates IMS member

Abstract
We disclose herein a thermal IR detector array device comprising a dielectric membrane, supported by a substrate, the membrane having an array of IR detectors, where the array size is at least 3 by 3 or larger, and there are tracks embedded within the membrane layers to separate each element of the array, the tracks also acting as heatsinks and/or cold junction regions.

Assignee/Applicant
Ams Sensors Uk Ltd

Link(s) to Patent
US Patent


Patent Title
External Hollow Antenna

Patent Number & Issued Date
US 9,995,132
June 12, 2018

Inventor Names
Michael F. Gard*, Brian K. Bailey, Richard F. Sharp
*Indicates IMS member

Abstract
A beacon assembly located at a downhole end of a drill string proximate a boring tool. The beacon assembly transmits data to an above-ground receiver. The beacon has a housing with a housing wall located between its sensors, such as gradiometers, accelerometers, and other orientation sensors, and an antenna assembly. The antenna assembly has a protective covering made of electromagnetically transparent material.

Assignee/Applicant
The Charles Machine Works, Inc.

Link(s) to Patent
US Patent


Patent Title
Chemical Sensor

Patent Number & Issued Date
US 9909926B2
March 6, 2018

Inventor Names
Richard Henry Hopper, Andrea De Luca*, Kaspars Ledins, Syed Zeeshan ALI, Mohamed Foysol Chowdhury
*Indicates IMS member

Abstract
We disclose a chemical sensing device for detecting a fluid. The sensing device comprises: at least one substrate region comprising at least one etched portion; a dielectric region formed on the at least one substrate region, the dielectric region comprising at least one dielectric membrane region adjacent to the at least one etched portion; an optical source for emitting an infra-red (IR) signal; an optical detector for detecting the IR signal emitted from the optical source; one or more further substrates formed on or under the dielectric region, said one or more further substrates defining an optical path for the IR signal to propagate from the optical source to the optical detector. At least one of the optical source and optical detector is formed in or on the dielectric membrane region.

Assignee/Applicant
Ams Sensors UK

Link(s) to Patent
US Patent


Patent Title
Two-Input Amplifier

Patent Number & Issued Date
US 9912304
Issued March 6, 2018

Inventor Names
Alexandru A. Ciubotaru*, Christoph M. Steinbrecher
*Indicates IMS member

Abstract
A two-input amplifier is disclosed. The amplifier can include an amplification path for a first input signal that can have adjustable flatness or high-frequency peaking, and an amplification path for a second input that can be substantially independent of the frequency-shaping aspect of the first-input path. The first-input amplification path can include an operational amplifier as an active device and a plurality of passive elements for frequency shaping. The second-input amplification path can include a device that injects its output current into a node of the first path. The signals of the two paths can be combined and appear substantially independently of each other at the output of the amplifier.

Assignee/Applicant
Analog Devices, Inc. (Norwood, MA)

Link(s) to Patent
US Patent


Patent Title
Vehicle operating state recognition based on vibration signal analysis

Patent Number & Issued Date
CN201511021941.4 
January 30, 2018

Inventor Names
Datong Liu, Guangxing Niu, Liansheng Liu, Yu Peng, Xiyuan Peng
*Indicates IMS member

Abstract
Based on the vehicle operating mode judgement method of the vibration signal analysis, belong to vehicle performance control field, invention purpose is for the method that provides online monitoring vehicle operating operating mode, on the one hand, can carry out the Intelligent Identify to the vehicle type, can identify the different operating conditions of vehicle on the other hand, is used for satisfying the demand to the vehicle state monitoring. The invention includes following step: step 1, gather the vibration signal of vehicle, and carries out the Denoise processing to it; Step 2, carry out the signal character value to the vibration signal after going to make an uproar and draw; The operating mode Intelligent Identify is carried out to step 3, the characteristic value of drawing according to step No. 2; Output vehicle operating mode type. The invention is used for monitoring the vehicle operating condition.

Assignee/Applicant
Harbin Institute of Technology

Link(s) to Patent
China Patent


Patent Title
Self-biased Multiple Cascode Current Mirror Circuit

Patent Number & Issued Date
USA  9,874,893
January 23, 2018

Inventor Names
Alexandru A. Ciubotaru

Abstract
A self-biased cascode current mirror/scaler circuit can include a bias FET biased with an input current to generate a gate-source voltage, which can be divided by a bias circuit into a first voltage component (e.g., at a threshold voltage) and a second voltage component (at a FET drain-source saturation voltage or edge of saturation voltage). An input FET of the current mirror/scaler circuit can receive approximately the input current or a function thereof. A gate of the input FET can be biased at the first voltage component in sum with a FET drain-source saturation voltage or edge of saturation voltage of the input FET. A gate of the output FET can be connected to the gate of the input FET. A gate of a cascode FET in series with the output FET can be biased at the first voltage component in sum with the second voltage component in sum with the FET drain-source saturation voltage or edge of saturation voltage of the input FET. Multiple cascode FETs, multiple output stages, high frequency bypass capacitors, and lowpass filters are also described.

Assignee/Applicant
Analog Devices, Inc. (Norwood, MA) 

Link(s) to Patent
US Patent