Patents by Inventor Roberto Marcoccia
Roberto Marcoccia 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: 9438350Abstract: In some embodiments, an apparatus includes an optical transmitter module that can be electrically coupled to an electrical serializer/deserializer and a controller. The optical transmitter module can include an electrical detector that can receive an in-band signal. The electrical detector can send to the controller a first power error signal and a second power error signal based on the in-band signal. The controller can send a correction control signal to the electrical serializer/deserializer based on the first power error signal and the second power error signal such that the electrical serializer/deserializer sends a pre-emphasized signal to the optical transmitter module based on the correction control signal. In such embodiments, the first power error signal, the second power signal and the correction control signal are out-of-band signals.Type: GrantFiled: July 31, 2013Date of Patent: September 6, 2016Assignee: Juniper Networks, Inc.Inventors: Theodore J. Schmidt, Bo Zhang, Murat Arabaci, Roberto Marcoccia, Christian Malouin, Steven William Keck
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Publication number: 20160233953Abstract: In some embodiments, an apparatus includes an optical detector that can sample asynchronously an optical signal from an optical component that can be either an optical transmitter or an optical receiver. In such embodiments, the apparatus also includes a processor operatively coupled to the optical detector, where the processor can calculate a metric value of the optical signal without an extinction ratio of the optical signal being measured. The metric value is proportional to the extinction ratio of the optical signal. In such embodiments, the processor can define an error signal based on the metric value of the optical signal and the processor can send the error signal to the optical transmitter such that the optical transmitter modifies an output optical signal.Type: ApplicationFiled: January 28, 2016Publication date: August 11, 2016Applicant: Juniper Networks, Inc.Inventors: Christian MALOUIN, Roberto MARCOCCIA, George R. SOSNOWSKI, Theodore J. SCHMIDT
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Patent number: 9350453Abstract: An access network includes an access device having an optical interface module that outputs a plurality of pairs of optical communication signals, each of the pairs of optical communication signals comprising a modulated optical transmit signal and an unmodulated optical receive signal, each of the pairs of optical communication signals having a different wavelength. A customer premise equipment (CPE) comprises an optical interface module to receive the modulated optical transmit signal and the unmodulated optical receive signal for any of the plurality of pairs of optical communication signals. The optical interface module includes a receive module to demodulate the modulated optical transmit signal into inbound symbols and a transmit module having an optical modulator and reflective optics to modulate the unmodulated optical receive signal in accordance with a data signal and reflect a modulated optical receive signal to communicate outbound data symbols to the access device.Type: GrantFiled: March 31, 2014Date of Patent: May 24, 2016Assignee: Juniper Networks, Inc.Inventors: Pradeep Sindhu, Jayabharat Boddu, Roberto Marcoccia, Theodore John Schmidt, Christian Malouin, Abhijit Kumar Choudhury, James Michael Murphy
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Patent number: 9350445Abstract: In some embodiments, an apparatus includes an optical transceiver system that includes a set of optical transmitters and a backup optical transmitter. In such embodiments, each optical transmitter from the set of optical transmitter can transmit at a unique wavelength from a set of wavelengths. The backup optical transmitter can transmit at a wavelength from the set of wavelengths when an optical transmitter from the set of optical transmitters associated with that wavelength fails. In other embodiments, an apparatus includes an optical transceiver system that includes a set of optical receivers and a backup optical receiver. The backup optical receiver can receive at a wavelength from the set of wavelengths when an optical receiver from the set of optical receivers associated with that wavelength fails.Type: GrantFiled: August 24, 2015Date of Patent: May 24, 2016Assignee: Juniper Networks, Inc.Inventors: Theodore J. Schmidt, Pradeep Sindhu, George R. Sosnowski, Christian Malouin, Roberto Marcoccia, Valery Kugel, Gunes Aybay
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Patent number: 9258056Abstract: In some embodiments, an apparatus includes an optical detector that can sample asynchronously an optical signal from an optical component that can be either an optical transmitter or an optical receiver. In such embodiments, the apparatus also includes a processor operatively coupled to the optical detector, where the processor can calculate a metric value of the optical signal without an extinction ratio of the optical signal being measured. The metric value is proportional to the extinction ratio of the optical signal. In such embodiments, the processor can define an error signal based on the metric value of the optical signal and the processor can send the error signal to the optical transmitter such that the optical transmitter modifies an output optical signal.Type: GrantFiled: January 8, 2014Date of Patent: February 9, 2016Assignee: Juniper Networks, Inc.Inventors: Christian Malouin, Roberto Marcoccia, George R. Sosnowski, Theodore J. Schmidt
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Patent number: 9240843Abstract: In some embodiments, an apparatus includes a coherent optical receiver that can receive during a first time period a set of in-phase signals and a set of quadrature signals having a skew from the set of in-phase signals. The coherent receiver can blindly determine a delay between the set of in-phase signals and the set of quadrature signals based on the set of in-phase signals and the set of quadrature signals. The delay includes an intersymbol portion and an intrasymbol portion. The coherent optical receiver can apply the delay at a second time after the first time period such that a skew after the second time is less than the skew at the first time period.Type: GrantFiled: December 28, 2012Date of Patent: January 19, 2016Assignee: Juniper Networks, Inc.Inventors: Christian Malouin, Philip A. Thomas, Murat Arabaci, Bo Zhang, Theodore J. Schmidt, Roberto Marcoccia
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Patent number: 9225431Abstract: This disclosure describes the Fast Chromatic Dispersion Estimation (FCDE) techniques which corrects for chromatic dispersion in high data rate optical communications systems such as some coherent optical communications systems. FCDE may utilize transform such as fast-Fourier transforms to estimate the chromatic dispersion. From an estimate of the chromatic dispersion, the techniques may determine filter tap coefficients for compensating the chromatic dispersion.Type: GrantFiled: March 29, 2013Date of Patent: December 29, 2015Assignee: Juniper Networks, Inc.Inventors: Murat Arabaci, Christian Malouin, Philip A. Thomas, Theodore John Schmidt, Roberto Marcoccia
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Patent number: 9118411Abstract: In some embodiments, an apparatus includes an optical transceiver system that includes a set of optical transmitters and a backup optical transmitter. In such embodiments, each optical transmitter from the set of optical transmitter can transmit at a unique wavelength from a set of wavelengths. The backup optical transmitter can transmit at a wavelength from the set of wavelengths when an optical transmitter from the set of optical transmitters associated with that wavelength fails. In other embodiments, an apparatus includes an optical transceiver system that includes a set of optical receivers and a backup optical receiver. The backup optical receiver can receive at a wavelength from the set of wavelengths when an optical receiver from the set of optical receivers associated with that wavelength fails.Type: GrantFiled: September 30, 2013Date of Patent: August 25, 2015Assignee: Juniper Networks, Inc.Inventors: Theodore J. Schmidt, Pradeep Sindhu, George R. Sosnowski, Christian Malouin, Roberto Marcoccia, Valery Kugel, Gunes Aybay
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Publication number: 20150236795Abstract: This disclosure describes techniques to sample electrical data streams in coherent receivers. For instance, an analog-to-digital converter (ADC) samples the received electrical data stream at a sampling rate that is nominally twice or greater than twice the symbol rate of the electrical data stream that the ADC receives. A digital filter receives the digital data stream from the ADC, and digitally filters the digital data streams to output a filtered digital electrical data stream at an effective sampling rate that is less than the sampling rate and less than twice the symbol rate, and greater than or equal to the symbol rate.Type: ApplicationFiled: April 29, 2015Publication date: August 20, 2015Inventors: Christian Malouin, Theodore John Schmidt, Bo Zhang, Elias Simpson, Roberto Marcoccia
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Patent number: 9100139Abstract: An optical system may include: a demultiplexer to receive an optical signal and to demultiplex the optical signal into a plurality of optical channels; a detector circuit to: receive the plurality of optical channels, and identify a predetermined channel identification trace tone frequency for an optical channel of the plurality of optical channels; and a receiver to: receive the optical channel with the identified predetermined channel identification trace tone frequency from the detector circuit, and process the optical channel.Type: GrantFiled: April 30, 2012Date of Patent: August 4, 2015Assignee: Juniper Networks, Inc.Inventors: Theodore J. Schmidt, Roberto Marcoccia
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Publication number: 20150180570Abstract: In some embodiments, an apparatus includes an optical detector that can sample asynchronously an optical signal from an optical component that can be either an optical transmitter or an optical receiver. In such embodiments, the apparatus also includes a processor operatively coupled to the optical detector, where the processor can calculate a metric value of the optical signal without an extinction ratio of the optical signal being measured. The metric value is proportional to the extinction ratio of the optical signal. In such embodiments, the processor can define an error signal based on the metric value of the optical signal and the processor can send the error signal to the optical transmitter such that the optical transmitter modifies an output optical signal.Type: ApplicationFiled: January 8, 2014Publication date: June 25, 2015Applicant: JUNIPER NETWORKS, INC.Inventors: Christian Malouin, Roberto Marcoccia, George R. Sosnowski, Theodore J. Schmidt
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Patent number: 9025963Abstract: This disclosure describes techniques to sample electrical data streams in coherent receivers. For instance, an analog-to-digital converter (ADC) samples the received electrical data stream at a sampling rate that is nominally twice or greater than twice the symbol rate of the electrical data stream that the ADC receives. A digital filter receives the digital data stream from the ADC, and digitally filters the digital data streams to output a filtered digital electrical data stream at an effective sampling rate that is less than the sampling rate and less than twice the symbol rate, and greater than or equal to the symbol rate.Type: GrantFiled: March 29, 2012Date of Patent: May 5, 2015Assignee: Juniper Networks, Inc.Inventors: Christian Malouin, Theodore John Schmidt, Bo Zhang, Elias Simpson, Roberto Marcoccia
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Patent number: 8948614Abstract: This disclosure describes techniques to utilize pluggable photonics module in high data rates optical communications systems such as some coherent optical communications system. The pluggable photonics module plugs into a host board. The host board includes a processor that compensates for distortion caused by data streams traveling across the pluggable interfaces that the pluggable photonics module and host board use to couple to one another.Type: GrantFiled: March 29, 2012Date of Patent: February 3, 2015Assignee: Juniper Networks, Inc.Inventors: Theodore John Schmidt, Christian Malouin, Roberto Marcoccia, Steven Keck, Bo Zhang
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Publication number: 20140212138Abstract: An access network includes an access device having an optical interface module that outputs a plurality of pairs of optical communication signals, each of the pairs of optical communication signals comprising a modulated optical transmit signal and an unmodulated optical receive signal, each of the pairs of optical communication signals having a different wavelength. A customer premise equipment (CPE) comprises an optical interface module to receive the modulated optical transmit signal and the unmodulated optical receive signal for any of the plurality of pairs of optical communication signals. The optical interface module includes a receive module to demodulate the modulated optical transmit signal into inbound symbols and a transmit module having an optical modulator and reflective optics to modulate the unmodulated optical receive signal in accordance with a data signal and reflect a modulated optical receive signal to communicate outbound data symbols to the access device.Type: ApplicationFiled: March 31, 2014Publication date: July 31, 2014Applicant: Juniper Networks, Inc.Inventors: Pradeep Sindhu, Jayabharat Boddu, Roberto Marcoccia, Theodore John Schmidt, Christian Malouin, Abhijit Kumar Choudhury, James Michael Murphy
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Patent number: 8687976Abstract: An access network includes an access device having an optical interface module that outputs a plurality of pairs of optical communication signals, each of the pairs of optical communication signals comprising a modulated optical transmit signal and an unmodulated optical receive signal, each of the pairs of optical communication signals having a different wavelength. A customer premise equipment (CPE) comprises an optical interface module to receive the modulated optical transmit signal and the unmodulated optical receive signal for any of the plurality of pairs of optical communication signals. The optical interface module includes a receive module to demodulate the modulated optical transmit signal into inbound symbols and a transmit module having an optical modulator and reflective optics to modulate the unmodulated optical receive signal in accordance with a data signal and reflect a modulated optical receive signal to communicate outbound data symbols to the access device.Type: GrantFiled: March 15, 2013Date of Patent: April 1, 2014Assignee: Juniper Networks, Inc.Inventors: Pradeep Sindhu, Jayabharat Boddu, Roberto Marcoccia, Theodore John Schmidt, Christian Malouin, Abhijit Kumar Choudhury, James Michael Murphy
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Publication number: 20130286847Abstract: An optical system may include: a demultiplexer to receive an optical signal and to demultiplex the optical signal into a plurality of optical channels; a detector circuit to: receive the plurality of optical channels, and identify a predetermined channel identification trace tone frequency for an optical channel of the plurality of optical channels; and a receiver to: receive the optical channel with the identified predetermined channel identification trace tone frequency from the detector circuit, and process the optical channel.Type: ApplicationFiled: April 30, 2012Publication date: October 31, 2013Applicant: Juniper Networks, Inc.Inventors: Theodore J. SCHMIDT, Roberto Marcoccia
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Publication number: 20130259490Abstract: This disclosure describes techniques to sample electrical data streams in coherent receivers. For instance, an analog-to-digital converter (ADC) samples the received electrical data stream at a sampling rate that is nominally twice or greater than twice the symbol rate of the electrical data stream that the ADC receives. A digital filter receives the digital data stream from the ADC, and digitally filters the digital data streams to output a filtered digital electrical data stream at an effective sampling rate that is less than the sampling rate and less than twice the symbol rate, and greater than or equal to the symbol rate.Type: ApplicationFiled: March 29, 2012Publication date: October 3, 2013Applicant: JUNIPER NETWORKS, INC.Inventors: Christian Malouin, Theodore John Schmidt, Bo Zhang, Elias Simpson, Roberto Marcoccia
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Patent number: 7986878Abstract: Techniques, apparatus and systems to provide adjustable bit rate optical transmission using programmable signal modulation in optical communication systems.Type: GrantFiled: February 5, 2008Date of Patent: July 26, 2011Assignee: Opnext Subsystems, Inc.Inventors: Ross Alexander Saunders, Roberto Marcoccia, Steven Keck, Theodore J. Schmidt, Christian Malouin
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Publication number: 20090196602Abstract: Techniques, apparatus and systems to provide adjustable bit rate optical transmission using programmable signal modulation in optical communication systems.Type: ApplicationFiled: February 5, 2008Publication date: August 6, 2009Inventors: Ross Saunders, Roberto Marcoccia, Steven Keck, Theodore J. Schmidt, Christian Malouin
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Patent number: 5691922Abstract: A golf ranging system is provided where a golfer positions a ranging unit at a ball position, indicates which hole is being played and the ranging unit reports the distance to the pin for that hole and/or the distance from the tee for that hole. The ranging signal is a direct sequence spread-spectrum signal and the ranging is repeated many times and an average taken, to improve the accuracy of the distance measurement. Optionally, the ranging system could operate over multiple frequencies to avoid interference. The multiple frequencies are scanned until an interference-free channel is found, or measurements are made at several frequencies and averaged. The pin unit might be housed just beyond the pin and include an offset to the pin. The offset can be set by simply sending an offset signal from a standard ranging unit, or a specially configured course management unit, held at the pin or manually entered via a serial port.Type: GrantFiled: November 14, 1995Date of Patent: November 25, 1997Assignee: Airwave Technology, Inc.Inventors: Charles McEwan, Michael Maietta, Robert Pompeani, Roberto Marcoccia