Patents by Inventor Sergio Walter
Sergio Walter 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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Publication number: 20230335659Abstract: A photovoltaic cell assembly positions lenses within a cell chamber lined with photovoltaic cells in an effort to foster multiple strikes of photons from a same beam of light onto different cells, thereby multiplying incidences of the photovoltaic effect and increasing the efficiency of power generation by the assembly.Type: ApplicationFiled: April 17, 2023Publication date: October 19, 2023Inventor: Sergio Walter Weffer
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Patent number: 11716102Abstract: An energy-efficient implementation of a WiFi transceiver is proposed in this disclosure. The WiFi transceiver comprises a receive chain comprising a variable receive (Rx) filter circuit and a variable Rx analog-to-digital converter (ADC) circuit. The receive chain is configured to receive a receive signal during a receive mode of operation, having a receive bandwidth associated therewith and receive a transmit signal associated with a transmit chain of the transceiver during a transmit mode of operation, having a transmit bandwidth associated therewith. The WiFi transceiver further comprises a control circuit configured to dynamically adapt a bandwidth of the variable Rx filter and the variable Rx ADC in the receive chain to the receive bandwidth or to the transmit bandwidth, based on the mode of operation.Type: GrantFiled: September 2, 2021Date of Patent: August 1, 2023Assignee: Intel CorporationInventors: Antonio Di Giandomenico, Vahur Kampus, Sergio Walter, Alexander Kahl, Steffen Trautmann
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Publication number: 20220390696Abstract: Production process of a submarine optical amplifier (99) for optical telecommunication systems, and relative submarine optical amplifier (99), comprising: covering at least a central body (3) for making a central portion (6) of a layer of electrically insulating material (60) which covers a vessel (50); inserting an apparatus for optical amplification (5) at least partially in an housing cavity (4) of the vessel (50); assembling the vessel (50) by fixing at least a first end body (1) to the central body (3) for closing said housing cavity (4); completing the electrically insulating material (60) by at least partially covering the first end body (1) with the electrically insulating material for making a first portion (6?) of the layer of electrically insulating material (60), wherein a first thermally insulating element (7) is interposed between the central body (3) and the first portion (6?) of the layer of electrically insulating material (60).Type: ApplicationFiled: November 9, 2020Publication date: December 8, 2022Applicant: SUBPHOTON S.R.L.Inventor: Sergio Walter GRASSI
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Publication number: 20220077932Abstract: An optical communication system is disclosed. The optical communication system may include a first fiber pump laser system having a first single mode (SM) fiber output configured to output a first pump laser radiation, a second fiber pump laser system having a second SM fiber output configured to output a second pump laser radiation, at least one combiner-splitter element configured to combine the first pump laser radiation and the second pump laser radiation and to transmit N portions of pump laser radiation, and N doped fiber amplifiers, where N is at least four, each doped fiber amplifier configured to receive one portion of the N portions of pump laser radiation and an input optical signal to be amplified, amplify the input optical signal into an amplified optical signal, and to transmit the amplified optical signal.Type: ApplicationFiled: December 20, 2019Publication date: March 10, 2022Applicant: IPG PHOTONICS CORPORATIONInventors: Ekatarina GOLOVCHENKO, Cristiano MORNATTA, Stephen G. EVANGELIDES, Jr., Sergio Walter GRASSI
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Publication number: 20210399751Abstract: An energy-efficient implementation of a WiFi transceiver is proposed in this disclosure. The WiFi transceiver comprises a receive chain comprising a variable receive (Rx) filter circuit and a variable Rx analog-to-digital converter (ADC) circuit. The receive chain is configured to receive a receive signal during a receive mode of operation, having a receive bandwidth associated therewith and receive a transmit signal associated with a transmit chain of the transceiver during a transmit mode of operation, having a transmit bandwidth associated therewith. The WiFi transceiver further comprises a control circuit configured to dynamically adapt a bandwidth of the variable Rx filter and the variable Rx ADC in the receive chain to the receive bandwidth or to the transmit bandwidth, based on the mode of operation.Type: ApplicationFiled: September 2, 2021Publication date: December 23, 2021Inventors: Antonio DI GIANDOMENICO, Vahur KAMPUS, Sergio WALTER, Alexander KAHL, Steffen TRAUTMANN
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Patent number: 11115066Abstract: An energy-efficient implementation of a WiFi transceiver is proposed in this disclosure. The WiFi transceiver comprises a receive chain comprising a variable receive (Rx) filter circuit and a variable Rx analog-to-digital converter (ADC) circuit. The receive chain is configured to receive a receive signal during a receive mode of operation, having a receive bandwidth associated therewith and receive a transmit signal associated with a transmit chain of the transceiver during a transmit mode of operation, having a transmit bandwidth associated therewith. The WiFi transceiver further comprises a control circuit configured to dynamically adapt a bandwidth of the variable Rx filter and the variable Rx ADC in the receive chain to the receive bandwidth or to the transmit bandwidth, based on the mode of operation.Type: GrantFiled: December 22, 2016Date of Patent: September 7, 2021Assignee: Intel CorporationInventors: Antonio Di Giandomenico, Vahur Kampus, Sergio Walter, Alexander Kahl, Steffen Trautmann
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Patent number: 10827650Abstract: The systems and methods described herein provide a submarine optical repeater in which a plurality of thermally conductive, electrically insulative, ceramic members form a hollow structure having an interior volume that is maintained at a relatively high first voltage when compared to a relatively low second voltage maintained external to the hollow structure. A conductive element at the first voltage disposed in the interior volume provides power to optical repeaters disposed on the interior surface of the hollow structure. Power flows radially outward from the conductive element to the optical repeaters to the surrounding environment about the submarine optical repeater. The thermally conductive ceramic members electrically isolate the optical repeaters from the second voltage while providing a thermally conductive pathway for the heat generated during the operation of the optical repeaters to dissipate into the surrounding environment.Type: GrantFiled: April 5, 2019Date of Patent: November 3, 2020Assignee: IPG PHOTONICS CORPORATIONInventor: Sergio Walter Grassi
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Publication number: 20190313547Abstract: The systems and methods described herein provide a submarine optical repeater in which a plurality of thermally conductive, electrically insulative, ceramic members form a hollow structure having an interior volume that is maintained at a relatively high first voltage when compared to a relatively low second voltage maintained external to the hollow structure. A conductive element at the first voltage disposed in the interior volume provides power to optical repeaters disposed on the interior surface of the hollow structure. Power flows radially outward from the conductive element to the optical repeaters to the surrounding environment about the submarine optical repeater. The thermally conductive ceramic members electrically isolate the optical repeaters from the second voltage while providing a thermally conductive pathway for the heat generated during the operation of the optical repeaters to dissipate into the surrounding environment.Type: ApplicationFiled: April 5, 2019Publication date: October 10, 2019Inventor: Sergio Walter Grassi
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Publication number: 20190288721Abstract: An energy-efficient implementation of a WiFi transceiver is proposed in this disclosure. The WiFi transceiver comprises a receive chain comprising a variable receive (Rx) filter circuit and a variable Rx analog-to-digital converter (ADC) circuit. The receive chain is configured to receive a receive signal during a receive mode of operation, having a receive bandwidth associated therewith and receive a transmit signal associated with a transmit chain of the transceiver during a transmit mode of operation, having a transmit bandwidth associated therewith. The WiFi transceiver further comprises a control circuit configured to dynamically adapt a bandwidth of the variable Rx filter and the variable Rx ADC in the receive chain to the receive bandwidth or to the transmit bandwidth, based on the mode of operation.Type: ApplicationFiled: December 22, 2016Publication date: September 19, 2019Inventors: Antonio Di Giandomenico, Vahur Kampus, Sergio Walter, Alexander Kahl, Steffen Trautmann
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Patent number: 10020816Abstract: Systems, methods, and circuitries for converting an analog voltage to a digital signal are provided. In one example a method to convert an analog voltage into a binary sequence that represents the voltage includes two modes. In the first mode, in each cycle, values for a next two or more of consecutive most significant bits (MSBs) in the sequence are determined using M comparators, wherein M is equal to or greater than 3. In a second mode, in each cycle, M redundant comparison results are determined using the M comparators. A value for the LSB is determined based on the M redundant values. At an end of conversion, the sequence of N bit values is generated based on the MSBs and the LSB.Type: GrantFiled: August 23, 2017Date of Patent: July 10, 2018Assignee: Intel IP CorporationInventors: Mauro Cleris, Sergio Walter
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Patent number: 8604895Abstract: Analogue filter for filtering out a high-frequency switching noise in a pulse-width-modulated transmit signal, which is fed into a line by a line driver by means of a transformer, wherein at least one capacitor is connected in parallel to a secondary winding of the transformer and, together with a stray inductivity of the transformer, forms the analogue filter.Type: GrantFiled: June 26, 2006Date of Patent: December 10, 2013Assignee: Lantiq Deutschland GmbHInventors: Sergio Walter, Andreas Wiesbauer, Giacomo Veranu, Thomas Potscher
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Patent number: 8310793Abstract: A DC-to-DC converter includes a switching control circuit adapted to provide a control signal having a duty cycle. A switching regulator is adapted to receive both a supply voltage having the first voltage level and the control signal. The switching regulator is further adapted to provide an output signal at the second voltage level as a function of both the supply voltage and the control signal. In addition, a current sensing circuit is adapted to provide at least one alarm signal based the duty cycle of the time-varying signal. Other systems and methods are also disclosed.Type: GrantFiled: July 21, 2009Date of Patent: November 13, 2012Assignee: Infineon Technologies AGInventors: Christian Jenkner, Sergio Walter
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Publication number: 20120063589Abstract: A driver circuit for driving a transmit signal for a line includes a signal amplifier configured to deliver a transmit signal, present at a signal input of the signal amplifier, amplified with a gain to a signal output, a line interface circuit connected between the signal output of the signal amplifier and the line, and a hybrid circuit connected to the line interface circuit, the hybrid circuit configured to suppress the transmit signal and couple a received signal received via the line to a signal input of the signal amplifier to provide impedance synthesis.Type: ApplicationFiled: November 16, 2011Publication date: March 15, 2012Inventors: Andreas Wiesbauer, Sergio Walter, Alexander Kahl, David San Segundo Bello
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Patent number: 8079215Abstract: System for controlling the motion of an actuator of a hydraulic system that may be embodied as a circuit or device that, interposed between a pump and the actuator, controls the motion of the actuator, causing the actuator to follow the movement of the pump. The present invention relates both to a system and a device providing such result just on the basis of the measures of the fluid circulating within the hydraulic circuit or device. The system according to the present invention is suited both with opposing loads and dragging loads.Type: GrantFiled: April 24, 2006Date of Patent: December 20, 2011Assignee: Inova SRLInventor: Sergio Walter Grassi
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Patent number: 8077856Abstract: Driver circuit for driving a transmit signal for a line comprising a signal amplifier which delivers a transmit signal, present at a signal input of the signal amplifier, amplified with a gain to a signal output, a line interface circuit which is connected between the signal output of the signal amplifier and the line, and comprising a hybrid circuit which is connected to the line interface circuit, wherein the hybrid circuit suppresses the transmit signal and couples a received signal received via the line to a signal input of the signal amplifier for the purpose of impedance synthesis.Type: GrantFiled: June 26, 2006Date of Patent: December 13, 2011Assignee: Lantiq Deutschland GmbHInventors: Andreas Wiesbauer, Sergio Walter, Alexander Kahl, David San Segundo Bello
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Publication number: 20110019315Abstract: A DC-to-DC converter includes a switching control circuit adapted to provide a control signal having a duty cycle. A switching regulator is adapted to receive both a supply voltage having the first voltage level and the control signal. The switching regulator is further adapted to provide an output signal at the second voltage level as a function of both the supply voltage and the control signal. In addition, a current sensing circuit is adapted to provide at least one alarm signal based the duty cycle of the time-varying signal. Other systems and methods are also disclosed.Type: ApplicationFiled: July 21, 2009Publication date: January 27, 2011Applicant: Infineon Technologies AGInventors: Christian Jenkner, Sergio Walter
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Patent number: 7869475Abstract: The present invention relates to an external-cavity laser module comprising a thermoelectric cooler (TEC) including an upper carrier plate having an upper surface, said TEC being configured to stabilize the temperature of the upper surface at a substantially constant temperature. The laser module further comprises a laser assembly mounted on an optical bench, which is in thermal coupling with said upper surface, said laser assembly comprising a gain medium for emitting an optical beam into the external cavity and an end mirror.Type: GrantFiled: July 12, 2006Date of Patent: January 11, 2011Assignee: PGT Photonics S.p.A.Inventors: Giacomo Antonio Rossi, Sergio Walter Grassi
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Publication number: 20100223923Abstract: System for controlling the motion of an actuator of a hydraulic system that may be embodied as a circuit or device that, interposed between a pump and the actuator, controls the motion of the actuator, causing the actuator to follow the movement of the pump. The present invention relates both to a system and a device providing such result just on the basis of the measures of the fluid circulating within the hydraulic circuit or device. The system according to the present invention is suited both with opposing loads and dragging loads.Type: ApplicationFiled: April 24, 2006Publication date: September 9, 2010Applicant: INOVA SRLInventor: Sergio Walter Grassi
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Patent number: 7729491Abstract: A method and a device for amplifying a reception signal are provided, involving the adjustment of a gain by which the reception signal is amplified, in particular as a function of a signal level of the reception signal. For example, lowpass filtering with a variable cutoff frequency is used to filter out a gain-dependent frequency range of the reception signal, which may especially contain an undesirable echo signal. Such a method and such a device are suitable in particular for the reception of ADSL signals in a central office.Type: GrantFiled: February 11, 2005Date of Patent: June 1, 2010Assignee: Infineon Technologies AGInventors: Alexander Kahl, Peter Pessl, Sergio Walter
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Patent number: 7642877Abstract: A self-oscillating pulse-width modulator comprises an input, an output and a control loop. The control loop comprises a forward branch and a feedback loop. The forward branch is connected between the input and the output and comprises a comparator and a delay element. The feedback loop loops back to the input a feedback signal which depends on an output signal present at the output. The phase shift of the open control loop is 180° at the frequency of an oscillation to be generated by the modulator. At least a part of the phase shift is realized in the forward branch by means of the at least one delay element.Type: GrantFiled: September 8, 2006Date of Patent: January 5, 2010Assignee: Infineon Technologies AGInventors: Martin Clara, Thomas Poetscher, Sergio Walter, Andreas Wiesbauer