Patents by Inventor Massimo Francescon
Massimo Francescon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9423275Abstract: The invention relates to a capacitive position encoder (1), comprising at least one capacitor with a first capacitor plate and a second capacitor plate, a dielectric modulator that is movably arranged between said first capacitor plate and said second capacitor plate, a signal source (11) for providing a phase-shifted excitation signal to the first capacitor plate of said at least one capacitor, and a charge amplifier (20) that is electrically connected to the second capacitor plate of said at least one capacitor, wherein a feedback loop (21) of the charge amplifier (20) comprises a feedback capacitor (Cf), wherein the capacitive position encoder (1) also comprises a shock cancellation circuit (30) that forms a parallel circuit with the feedback loop (21) including the feedback capacitor (Cf) and that the shock cancellation circuit (30) comprises a low pass filter (31).Type: GrantFiled: October 18, 2013Date of Patent: August 23, 2016Assignee: SICK STEGMANN GMBHInventor: Massimo Francescon
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Patent number: 9176162Abstract: Position encoder for measuring a position containing a sensor 2, providing electrical signals representing the angular position, a measuring device for measuring the electrical signals and outputting at least one electrical position signal representing the angular position and signal processing means 3, processing the position signal, the signal processing means 3 exhibiting an adaptive filter comprising at least a speed estimator 5 outputting an estimated speed and connected in parallel a speed limiter 7 that depending from the estimated speed limits a change in the position signal.Type: GrantFiled: May 9, 2013Date of Patent: November 3, 2015Assignee: SICK STEGMANN GMBHInventor: Massimo Francescon
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Patent number: 9098443Abstract: Phase information of a rotation system is obtained by a) reading the present output value Sk, (k=0, . . . , N?1) of the sensor at a sequence of N points of time during a first period of a periodic modulation function (PHA,PHB,PHC, PHD), b) storing read output values Sk or a value derived from this output value at least temporarily in a memory, c) extracting information on the phase of the rotating system, wherein said information is extracted based on evaluation of a function of the type, wherein=and, and d) sampling and storing sequentially further output values Sk, k=N,N+1, . . . of the sensor at corresponding points of time in the following periods of the periodic modulation function (PHA,PHB,PHC, PHD). Each reading information on the phase of the rotating system based on the function is extracted and a controller device (100) for application of this technique.Type: GrantFiled: January 11, 2013Date of Patent: August 4, 2015Assignee: SICK STEGMANN GMBHInventor: Massimo Francescon
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Publication number: 20140139243Abstract: The invention relates to a capacitive position encoder (1), comprising at least one capacitor with a first capacitor plate and a second capacitor plate, a dielectric modulator that is movably arranged between said first capacitor plate and said second capacitor plate, a signal source (11) for providing a phase-shifted excitation signal to the first capacitor plate of said at least one capacitor, and a charge amplifier (20) that is electrically connected to the second capacitor plate of said at least one capacitor, wherein a feedback loop (21) of the charge amplifier (20) comprises a feedback capacitor (Cf), wherein the capacitive position encoder (1) also comprises a shock cancellation circuit (30) that forms a parallel circuit with the feedback loop (21) including the feedback capacitor (Cf) and that the shock cancellation circuit (30) comprises a low pass filter (31).Type: ApplicationFiled: October 18, 2013Publication date: May 22, 2014Applicant: Sick Stegmann GmbHInventor: Massimo FRANCESCON
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Publication number: 20130335063Abstract: Position encoder for measuring a position containing a sensor 2, providing electrical signals representing the angular position, a measuring device for measuring the electrical signals and outputting at least one electrical position signal representing the angular position and signal processing means 3, processing the position signal, the signal processing means 3 exhibiting an adaptive filter comprising at least a speed estimator 5 outputting an estimated speed and connected in parallel a speed limiter 7 that depending from the estimated speed limits a change in the position signal.Type: ApplicationFiled: May 9, 2013Publication date: December 19, 2013Applicant: SICK STEGMANN GmbHInventor: Massimo FRANCESCON
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Patent number: 8135977Abstract: The invention relates to a process for digital, bidirectional data transmission between a processing unit and a position encoder, as based on the transmission of frames of a predetermined bit length, such that each frame is provided with at least an initial bit length for the transmission of data from the processing unit to the position encoder and at least a second bit length for the transmission of data from the position encoder to the processing unit; and such that the frame is provided with a time slot in which data is neither transmitted from the processing unit to the position encoder nor from the position encoder to the processing unit. In the time slot a triggering signal (external sync signal) is transmitted from the processing unit to the position encoder and this triggers the acquisition of position data.Type: GrantFiled: July 21, 2009Date of Patent: March 13, 2012Assignee: Sick Stegmann GmbHInventors: Massimo Francescon, Ulrich Armbruster, Simon Stein
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Patent number: 7984632Abstract: The invention relates to a method for synchronizing a bi-directional transmission of data between a transmitter and a receiver based on the transmission of frames (10) having a predefined bit length, with a predefined first bit length (20) being provided in each frame (10) for the transmission of data from the transmitter to the receiver and a predefined second bit length (30) for the transmission of data from the receiver to the transmitter, with a trigger pulse (40) being sent to the receiver parallel to and independently from the transmission of the data between the transmitter and receiver, which pulse triggers a data collection process at the receiver, wherein the frame (10) has a time slot (50), during which no information is transmitted from the transmitter to the receiver and also not from the receiver to the transmitter, and wherein the trigger pulse (40) is transmitted from the transmitter to the receiver during this time slot (50).Type: GrantFiled: May 10, 2007Date of Patent: July 26, 2011Assignee: Sick Stegman GmbHInventors: Massimo Francescon, Josef Siraky, Ulrich Armbruster
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Publication number: 20100023791Abstract: The invention relates to a process for digital, bidirectional data transmission between a processing unit and a position encoder, as based on the transmission of frames of a predetermined bit length, such that each frame is provided with at least an initial bit length for the transmission of data from the processing unit to the position encoder and at least a second bit length for the transmission of data from the position encoder to the processing unit; and such that the frame is provided with a time slot in which data is neither transmitted from the processing unit to the position encoder nor from the position encoder to the processing unit. In the time slot a triggering signal (external sync signal) is transmitted from the processing unit to the position encoder and this triggers the acquisition of position data.Type: ApplicationFiled: July 21, 2009Publication date: January 28, 2010Applicant: SICK STEGMANN GmbHInventors: Massimo Francescon, Ulrich Armbruster, Simon Stein
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Publication number: 20070263589Abstract: The invention relates to a method for synchronizing a bi-directional transmission of data between a transmitter and a receiver based on the transmission of frames (10) having a predefined bit length, with a predefined first bit length (20) being provided in each frame (10) for the transmission of data from the transmitter to the receiver and a predefined second bit length (30) for the transmission of data from the receiver to the transmitter, with a trigger pulse (40) being sent to the receiver parallel to and independently from the transmission of the data between the transmitter and receiver, which pulse triggers a data collection process at the receiver, wherein the frame (10) has a time slot (50), during which no information is transmitted from the transmitter to the receiver and also not from the receiver to the transmitter, and wherein the trigger pulse (40) is transmitted from the transmitter to the receiver during this time slot (50).Type: ApplicationFiled: May 10, 2007Publication date: November 15, 2007Inventors: Massimo Francescon, Josef Siraky, Ulrich Armbruster