Patents by Inventor Raviv Weber
Raviv Weber 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: 10411433Abstract: An integrated photonic module includes a semiconductor substrate configured to serve as an optical bench. Alternating layers of insulating and conducting materials are deposited on the substrate and patterned so as to define electrical connections. An optoelectronic chip is mounted on the substrate in contact with the electrical connections. A drive chip is mounted on the substrate so as to provide an electrical drive current to the optoelectronic chip via the electrical connections.Type: GrantFiled: April 25, 2018Date of Patent: September 10, 2019Assignee: APPLE INC.Inventor: Raviv Weber
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Patent number: 10247827Abstract: Optical apparatus (64) includes a stator assembly (47), which includes a core (78, 90, 91) containing an air gap and one or more coils (80, 92, 94, 116, 120) including conductive wire wound on the core so as to cause the core to form a magnetic circuit through the air gap in response to an electrical current flowing in the conductive wire. A scanning mirror assembly (45, 83, 85, 130) includes a support structure (68), a base (72), which is mounted to rotate about a first axis relative to the support structure, and a mirror (46), which is mounted to rotate about a second axis relative to the base. At least one rotor (76, 132) includes one or more permanent magnets, which are fixed to the scanning mirror assembly and which are positioned in the air gap so as to move in response to the magnetic circuit. A driver (82) is coupled to generate the electrical current in the one or more coils.Type: GrantFiled: June 7, 2018Date of Patent: April 2, 2019Assignee: APPLE INC.Inventors: Alexander Sromin, Naftali Chayat, Raviv Erlich, Yuval Gerson, Alexander Shpunt, Raviv Weber
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Publication number: 20180292537Abstract: Optical apparatus (64) includes a stator assembly (47), which includes a core (78, 90, 91) containing an air gap and one or more coils (80, 92, 94, 116, 120) including conductive wire wound on the core so as to cause the core to form a magnetic circuit through the air gap in response to an electrical current flowing in the conductive wire. A scanning mirror assembly (45, 83, 85, 130) includes a support structure (68), a base (72), which is mounted to rotate about a first axis relative to the support structure, and a mirror (46), which is mounted to rotate about a second axis relative to the base. At least one rotor (76, 132) includes one or more permanent magnets, which are fixed to the scanning mirror assembly and which are positioned in the air gap so as to move in response to the magnetic circuit. A driver (82) is coupled to generate the electrical current in the one or more coils.Type: ApplicationFiled: June 7, 2018Publication date: October 11, 2018Inventors: Alexander Sromin, Naftali Chayat, Raviv Erlich, Yuval Gerson, Alexander Shpunt, Raviv Weber
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Publication number: 20180241174Abstract: An integrated photonic module includes a semiconductor substrate configured to serve as an optical bench. Alternating layers of insulating and conducting materials are deposited on the substrate and patterned so as to define electrical connections. An optoelectronic chip is mounted on the substrate in contact with the electrical connections. A drive chip is mounted on the substrate so as to provide an electrical drive current to the optoelectronic chip via the electrical connections.Type: ApplicationFiled: April 25, 2018Publication date: August 23, 2018Inventor: Raviv Weber
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Patent number: 10018723Abstract: Optical apparatus (64) includes a stator assembly (47), which includes a core (78, 90, 91) containing an air gap and one or more coils (80, 92, 94, 116, 120) including conductive wire wound on the core so as to cause the core to form a magnetic circuit through the air gap in response to an electrical current flowing in the conductive wire. A scanning mirror assembly (45, 83, 85, 130) includes a support structure (68), a base (72), which is mounted to rotate about a first axis relative to the support structure, and a mirror (46), which is mounted to rotate about a second axis relative to the base. At least one rotor (76, 132) includes one or more permanent magnets, which are fixed to the scanning mirror assembly and which are positioned in the air gap so as to move in response to the magnetic circuit. A driver (82) is coupled to generate the electrical current in the one or more coils.Type: GrantFiled: July 25, 2013Date of Patent: July 10, 2018Assignee: APPLE INC.Inventors: Alexander Sromin, Naftali Chayat, Raviv Erlich, Yuval Gerson, Alexander Shpunt, Raviv Weber
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Patent number: 9985412Abstract: An integrated photonic module includes a semiconductor substrate configured to serve as an optical bench. Alternating layers of insulating and conducting materials are deposited on the substrate and patterned so as to define electrical connections. An optoelectronic chip is mounted on the substrate in contact with the electrical connections. A drive chip is mounted on the substrate so as to provide an electrical drive current to the optoelectronic chip via the electrical connections.Type: GrantFiled: March 30, 2017Date of Patent: May 29, 2018Assignee: APPLE INC.Inventor: Raviv Weber
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Publication number: 20170207601Abstract: An integrated photonic module includes a semiconductor substrate configured to serve as an optical bench. Alternating layers of insulating and conducting materials are deposited on the substrate and patterned so as to define electrical connections. An optoelectronic chip is mounted on the substrate in contact with the electrical connections. A drive chip is mounted on the substrate so as to provide an electrical drive current to the optoelectronic chip via the electrical connections.Type: ApplicationFiled: March 30, 2017Publication date: July 20, 2017Inventor: Raviv Weber
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Patent number: 9647419Abstract: An integrated photonic module includes a semiconductor substrate configured to serve as an optical bench. Alternating layers of insulating and conducting materials are deposited on the substrate and patterned so as to define electrical connections. An optoelectronic chip is mounted on the substrate in contact with the electrical connections. A drive chip is mounted on the substrate so as to provide an electrical drive current to the optoelectronic chip via the electrical connections.Type: GrantFiled: January 28, 2015Date of Patent: May 9, 2017Assignee: APPLE INC.Inventor: Raviv Weber
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Patent number: 9203356Abstract: A method for sensing includes connecting an input of a trans-impedance amplifier (TIA) to a first terminal of a sensor, which generates a current in response to an input signal that is incident on the sensor, the signal comprising pulses of a characteristic duration. A resistor is connected in series between a second terminal of the sensor and a power supply, which is set to drive the sensor at a selected voltage. A capacitor is connected to the second terminal in parallel with the sensor and the TIA and in series with the resistor. An upper limit is set on the current that is to be input to the TIA from the sensor, and respective values of the resistor and the capacitor are chosen, responsively to the characteristic duration of the pulses and the selected voltage, to prevent the current input to the TIA from exceeding the upper limit.Type: GrantFiled: October 20, 2013Date of Patent: December 1, 2015Assignee: APPLE INC.Inventor: Raviv Weber
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Publication number: 20150303649Abstract: An integrated photonic module includes a semiconductor substrate configured to serve as an optical bench. Alternating layers of insulating and conducting materials are deposited on the substrate and patterned so as to define electrical connections. An optoelectronic chip is mounted on the substrate in contact with the electrical connections. A drive chip is mounted on the substrate so as to provide an electrical drive current to the optoelectronic chip via the electrical connections.Type: ApplicationFiled: January 28, 2015Publication date: October 22, 2015Inventor: Raviv Weber
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Publication number: 20150260847Abstract: Optical apparatus (64) includes a stator assembly (47), which includes a core (78, 90, 91) containing an air gap and one or more coils (80, 92, 94, 116, 120) including conductive wire wound on the core so as to cause the core to form a magnetic circuit through the air gap in response to an electrical current flowing in the conductive wire. A scanning mirror assembly (45, 83, 85, 130) includes a support structure (68), a base (72), which is mounted to rotate about a first axis relative to the support structure, and a mirror (46), which is mounted to rotate about a second axis relative to the base. At least one rotor (76, 132) includes one or more permanent magnets, which are fixed to the scanning mirror assembly and which are positioned in the air gap so as to move in response to the magnetic circuit. A driver (82) is coupled to generate the electrical current in the one or more coils.Type: ApplicationFiled: July 25, 2013Publication date: September 17, 2015Inventors: Alexander Sromin, Naftali Chayat, Raviv Erlich, Yuval Gerson, Alexander Shpunt, Raviv Weber
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Publication number: 20140110566Abstract: A method for sensing includes connecting an input of a trans-impedance amplifier (TIA) to a first terminal of a sensor, which generates a current in response to an input signal that is incident on the sensor, the signal comprising pulses of a characteristic duration. A resistor is connected in series between a second terminal of the sensor and a power supply, which is set to drive the sensor at a selected voltage. A capacitor is connected to the second terminal in parallel with the sensor and the TIA and in series with the resistor. An upper limit is set on the current that is to be input to the TIA from the sensor, and respective values of the resistor and the capacitor are chosen, responsively to the characteristic duration of the pulses and the selected voltage, to prevent the current input to the TIA from exceeding the upper limit.Type: ApplicationFiled: October 20, 2013Publication date: April 24, 2014Applicant: PRIMESENSE LTD.Inventor: Raviv Weber
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Publication number: 20120307949Abstract: Burst mode clock and data recovery (BCDR) circuit and method capable of fast data recovery of passive optical network (PON) traffic. An over-sampled data stream is generated from an input burst data signal and a phase interpolator generates sampling clock signals using a reference clock and phase information. A phase estimation unit (PEU) determines a phase error in the over-sampled data streams; and a phase retrieval unit sets the phase interpolator with the respective phase information of the input burst data signal prior to reception of the input burst data signal.Type: ApplicationFiled: August 13, 2012Publication date: December 6, 2012Inventors: Amiad DVIR, Raviv WEBER, David AVlSHAI, Alex GOLDSTEIN, Igor ELKANOVlCH, Gal SITTON, Michael BALTER
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Patent number: 8243869Abstract: Burst mode clock and data recovery (BCDR) circuit and method capable of fast data recovery of passive optical network (PON) traffic. An over-sampled data stream is generated from an input burst data signal and a phase interpolator generates sampling clock signals using a reference clock and phase information. A phase estimation unit (PEU) determines a phase error in the over-sampled data streams; and a phase retrieval unit sets the phase interpolator with the respective phase information of the input burst data signal prior to reception of the input burst data signal.Type: GrantFiled: November 28, 2006Date of Patent: August 14, 2012Assignee: Broadlight Ltd.Inventors: Amiad Dvir, Raviv Weber, David Avishai, Alex Goldstein, Igor Elkanovich, Gal Sitton, Michael Balter
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Patent number: 7925156Abstract: Apparatus and method to measure the quality of burst signals and to perform optical line diagnostics in and optical passive optical network (PON). Statistical information about phase noise (jitter), signal distortion, clock distortions, and any other effects present in burst signals is generated. The statistics are based on phase and bit-length distortions, direction and length of the effect as detected by a phase error detector integrated in a burst mode clock and data recovery (BCDR) circuit. The invention can be further adapted to perform optical line diagnostics to detect the root cause performance degradation and failures in the PON, thereby providing an optical layer supervision tool for monitoring the PON. The statistical information can be used to estimate the quality of service (QoS) per customer connected to the PON. In addition, the generated statistic information can be used to calibrate transmission parameters of optical network unit (ONU) transmitters.Type: GrantFiled: December 20, 2007Date of Patent: April 12, 2011Assignee: Broadlight, Ltd.Inventors: Raviv Weber, Amiad Dvir, Eli Elmoalem, Alex Goldstein, Igor Elkanovich, David Avishai
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Patent number: 7646990Abstract: A circuit for detecting optical failures in a passive optical network (PON) wherein digital burst data transmitted by an optical transmitter is monitored by a photodiode, includes a power determination unit coupled to the photodiode for providing measurements of an output optical power of a high logic level and a low logic level of the digital burst data during ON times of the optical transmitter and for providing a measurement of an output optical power during OFF times of the optical transmitter. A logic unit coupled to the power determination unit is responsive to the measurements for generating control and calibration signals. Such a circuit may be used for detecting rogue optical network unit (ONU) failure or eye safety hazards in a passive optical network (PON) wherein digital burst data transmitted by an optical transmitter is monitored by a photodiode.Type: GrantFiled: September 5, 2006Date of Patent: January 12, 2010Assignee: Broadlight Ltd.Inventors: Raviv Weber, Asaf Koren
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Patent number: 7583904Abstract: A transimpedance amplifier (TIA) circuit usable for burst mode communications is provided. The TIA circuit includes a TIA stage, a limiter-amplifier, and a DC restoration loop. The invention overcomes problems of the prior art relating to burst communications, such as a DC level in the output signal which can change from burst to burst and a duty-cycle distortion in large signals. This is achieved by using a DC restoration loop that ensures achieving zero DC potential within variable acquisition periods.Type: GrantFiled: June 12, 2006Date of Patent: September 1, 2009Assignee: Broadlight Ltd.Inventors: Raviv Weber, Moshe Levy, Rafi Dvir
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Publication number: 20080193125Abstract: Apparatus and method to measure the quality of burst signals and to perform optical line diagnostics in and optical passive optical network (PON). Statistical information about phase noise (jitter), signal distortion, clock distortions, and any other effects present in burst signals is generated. The statistics are based oil phase and bit-length distortions, direction and length of the effect as detected by a phase error detector integrated in a burst mode clock and data recovery (BCDR) circuit. The invention can be further adapted to perform optical line diagnostics to detect the root cause performance degradation and failures in the PON, thereby providing an optical layer supervision tool for monitoring the PON. The statistical information can be used to estimate the quality of service (QoS) per customer connected to the PON. In addition, the generated statistic information can be used to calibrate transmission parameters of optical network unit (ONU) transmitters.Type: ApplicationFiled: December 20, 2007Publication date: August 14, 2008Applicant: Broadlight Ltd.Inventors: Raviv WEBER, Amiad Dvir, Eli Elmoalem, Alex Goldstein, Igor Elkanovich, David Avishai
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Publication number: 20080124092Abstract: Burst mode clock and data recovery (BCDR) circuit and method capable of fast data recovery of passive optical network (PON) traffic. An over-sampled data stream is generated from an input burst data signal and a phase interpolator generates sampling clock signals using a reference clock and phase information. A phase estimation unit (PEU) determines a phase error in the over-sampled data streams; and a phase retrieval unit sets the phase interpolator with the respective phase information of the input burst data signal prior to reception of the input burst data signal.Type: ApplicationFiled: November 28, 2006Publication date: May 29, 2008Applicant: Broadlight Ltd.Inventors: Amiad Dvir, Raviv Weber, David Avishai, Alex Goldstein, Igor Elkanovich, Gal Sitton, Michael Balter
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Publication number: 20080056731Abstract: A circuit for detecting optical failures in a passive optical network (PON) wherein digital burst data transmitted by an optical transmitter is monitored by a photodiode, includes a power determination unit coupled to the photodiode for providing measurements of an output optical power of a high logic level and a low logic level of the digital burst data during ON times of the optical transmitter and for providing a measurement of an output optical power during OFF times of the optical transmitter. A logic unit coupled to the power determination unit is responsive to the measurements for generating control and calibration signals. Such a circuit may be used for detecting rogue optical network unit (ONU) failure or eye safety hazards in a passive optical network (PON) wherein digital burst data transmitted by an optical transmitter is monitored by a photodiode.Type: ApplicationFiled: September 5, 2006Publication date: March 6, 2008Applicant: BROADLIGHT LTD.Inventors: Raviv Weber, Asaf Koren