Patents by Inventor Vladimir Pelekhaty
Vladimir Pelekhaty 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: 20150172040Abstract: An optical transceiver includes N transmitters each transmitting one of N transmitted optically bound channels; a clock forwarding mechanism to transmit a transmitted optical clock signal to an opposing optical receiver; N receivers each receiving one of N received optically bound channels; and a clock recovery mechanism to receive a received optical clock signal from the opposing optical transmitter. A method and photonically integrated system are also disclosed. The optical transceiver, method, and system optimize system design of WDM highly parallelized transceivers with optical bound channels, a simplified clocking architecture, and boosted receiver sensitivity. The optical transceiver, method, and system include clock recovery followed by data recovery and can utilize integrate-and-dump optical receivers with a recovered clock.Type: ApplicationFiled: December 12, 2013Publication date: June 18, 2015Applicant: CIENA CORPORATIONInventors: Vladimir Pelekhaty, Michael Y. Frankel
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Patent number: 9007921Abstract: The present disclosure provides systems and methods for noise tolerant signal processing in a pilot assisted data receiver, including: given received pilots with common pilot components and individual pilot components, computing coefficients associated with the individual pilot components of the received pilots; and applying the computed coefficients to the received pilots to obtain conditioned pilots. The individual pilot components result from relatively slow changes of the received pilots relative to the common pilot components. The common pilot components result from relatively fast changes of the received pilots relative to the individual pilot components.Type: GrantFiled: September 3, 2014Date of Patent: April 14, 2015Assignee: Ciena CorporationInventors: Vladimir Pelekhaty, Michael Y. Frankel
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Patent number: 8977125Abstract: A method and apparatus for simultaneous processing of signals impressed on a horizontal polarization of a light wave and on a vertical polarization of the light wave is provided. In one embodiment, a horizontal polarization pilot tone is impressed on a data signal carried by the horizontal polarization and a vertical polarization pilot tone is impressed on a data signal carried by the vertical polarization. A receiver processes the dual-polarized light wave and converts it to an X channel signal and a Y channel signal. The X and Y channel signals are processed in separate channels to recover a phase and frequency offset between them and a local oscillator. The phase and frequency recovered and frequency de-multiplexed signals are further processed to polarization de-multiplex the data signal carried by the horizontal polarization and the data signal carried by the vertical polarization.Type: GrantFiled: August 11, 2010Date of Patent: March 10, 2015Assignee: Ciena CorporationInventors: Vladimir S. Grigoryan, Vladimir Pelekhaty, Michael Y. Frankel
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Publication number: 20140369686Abstract: The present disclosure provides systems and methods for noise tolerant signal processing in a pilot assisted data receiver, including: given received pilots with common pilot components and individual pilot components, computing coefficients associated with the individual pilot components of the received pilots; and applying the computed coefficients to the received pilots to obtain conditioned pilots. The individual pilot components result from relatively slow changes of the received pilots relative to the common pilot components. The common pilot components result from relatively fast changes of the received pilots relative to the individual pilot components.Type: ApplicationFiled: September 3, 2014Publication date: December 18, 2014Applicant: CIENA CORPORATIONInventors: Vladimir PELEKHATY, Michael Y. FRANKEL
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Patent number: 8908745Abstract: The present invention provides a transmission system, including: a transmitter including a transmitter filter; a receiver including a receiver filter; and a communicative coupling between the transmitter and the receiver; wherein the transmitter filter and the receiver filter are matched for noise reduction, and wherein the combined responses of the transmitter filter and the receiver filter satisfy the Nyquist criteria. Optionally, the transmitter filter includes a pulse shaping quasi digital finite impulse response filter. Optionally, the receiver filter includes an inductor-capacitor ladder based filter.Type: GrantFiled: January 18, 2011Date of Patent: December 9, 2014Assignee: Ciena CorporationInventors: Vladimir Pelekhaty, Michael Y. Frankel, Michael J. Wingrove
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Patent number: 8884649Abstract: A Field Programmable Gate Array (FPGA) to implement channel equalization to mitigate group velocity dispersion in an optical system. In one embodiment, a mapping is loaded into the FPGA whereby the in-phase and quadrature components of the baseband sequence to be filtered are routed to accumulators to form various sums, where each sum is multiplied by a corresponding distinct filter tap coefficient value according to the mapping to form various products, and where the products are summed to provide the in-phase and quadrature components of the filtered output.Type: GrantFiled: April 22, 2013Date of Patent: November 11, 2014Assignee: Ciena CorporationInventors: John P. Mateosky, Michael Y. Frankel, Vladimir Pelekhaty
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Publication number: 20140312931Abstract: A Field Programmable Gate Array (FPGA) to implement channel equalization to mitigate group velocity dispersion in an optical system. In one embodiment, a mapping is loaded into the FPGA whereby the in-phase and quadrature components of the baseband sequence to be filtered are routed to accumulators to form various sums, where each sum is multiplied by a corresponding distinct filter tap coefficient value according to the mapping to form various products, and where the products are summed to provide the in-phase and quadrature components of the filtered output.Type: ApplicationFiled: April 22, 2013Publication date: October 23, 2014Applicant: Ciena CorporationInventors: John P. MATEOSKY, Michael Y. Frankel, Vladimir Pelekhaty
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Patent number: 8867368Abstract: The present disclosure provides systems and methods for noise tolerant signal processing in a pilot assisted data receiver, including: given received pilots with common pilot components and individual pilot components, computing coefficients associated with the individual pilot components of the received pilots; and applying the computed coefficients to the received pilots to obtain conditioned pilots. The individual pilot components result from relatively slow changes of the received pilots relative to the common pilot components. The common pilot components result from relatively fast changes of the received pilots relative to the individual pilot components.Type: GrantFiled: September 5, 2012Date of Patent: October 21, 2014Assignee: Ciena CorporationInventors: Vladimir Pelekhaty, Michael Y. Frankel
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Patent number: 8790742Abstract: A method for manufacturing an electronic circuit in three-dimensional space provides for interconnecting electronic components within the circuit by directly writing conducting lines. The method may include observing a direct writing tool of a direct write system using a vision system, determining proper placement of the direct writing tool at least partially based on the step of observing, and directly writing conducting lines in three dimensions using the proper placement. The direct writing may be on a surface or in free space. The method may include stacking a plurality of chips to provide a stack having a top surface and edges extending away from the top and interconnecting connections of the chips by directly writing conducting lines along one of the edges.Type: GrantFiled: June 10, 2011Date of Patent: July 29, 2014Assignee: Nscrypt, Inc.Inventors: Kenneth H. Church, Patrick Clark, Dongjiang Xu, Lance Swan, Bryan Irwin, Vladimir Pelekhaty
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Publication number: 20140064102Abstract: The present disclosure provides systems and methods for noise tolerant signal processing in a pilot assisted data receiver, including: given received pilots with common pilot components and individual pilot components, computing coefficients associated with the individual pilot components of the received pilots; and applying the computed coefficients to the received pilots to obtain conditioned pilots. The individual pilot components result from relatively slow changes of the received pilots relative to the common pilot components. The common pilot components result from relatively fast changes of the received pilots relative to the individual pilot components.Type: ApplicationFiled: September 5, 2012Publication date: March 6, 2014Applicant: CIENA CORPORATIONInventors: Vladimir Pelekhaty, Michael Y. Frankel
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Publication number: 20120183092Abstract: The present invention provides a transmission system, including: a transmitter including a transmitter filter; a receiver including a receiver filter; and a communicative coupling between the transmitter and the receiver; wherein the transmitter filter and the receiver filter are matched for noise reduction, and wherein the combined responses of the transmitter filter and the receiver filter satisfy the Nyquist criteria. Optionally, the transmitter filter includes a pulse shaping quasi digital finite impulse response filter. Optionally, the receiver filter includes an inductor-capacitor ladder based filter.Type: ApplicationFiled: January 18, 2011Publication date: July 19, 2012Inventors: Vladimir Pelekhaty, Michael Y. Frankel, Michael J. Wingrove
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Publication number: 20120039606Abstract: A method and apparatus for simultaneous processing of signals impressed on a horizontal polarization of a light wave and on a vertical polarization of the light wave is provided. In one embodiment, a horizontal polarization pilot tone is impressed on a data signal carried by the horizontal polarization and a vertical polarization pilot tone is impressed on a data signal carried by the vertical polarization. A receiver processes the dual-polarized light wave and converts it to an X channel signal and a Y channel signal. The X and Y channel signals are processed in separate channels to recover a phase and frequency offset between them and a local oscillator. The phase and frequency recovered and frequency de-multiplexed signals are further processed to polarization de-multiplex the data signal carried by the horizontal polarization and the data signal carried by the vertical polarization.Type: ApplicationFiled: August 11, 2010Publication date: February 16, 2012Applicant: CIENA CORPORATIONInventors: Vladimir S. GRIGORYAN, Vladimir PELEKHATY, Michael Y. FRANKEL
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Publication number: 20110237002Abstract: A method for manufacturing an electronic circuit in three-dimensional space provides for interconnecting electronic components within the circuit by directly writing conducting lines. The method may include observing a direct writing tool of a direct write system using a vision system, determining proper placement of the direct writing tool at least partially based on the step of observing, and directly writing conducting lines in three dimensions using the proper placement. The direct writing may be on a surface or in free space. The method may include stacking a plurality of chips to provide a stack having a top surface and edges extending away from the top and interconnecting connections of the chips by directly writing conducting lines along one of the edges.Type: ApplicationFiled: June 10, 2011Publication date: September 29, 2011Applicant: NSCRYPT, INC.Inventors: KENNETH H. CHURCH, PATRICK CLARK, DONGJIANG XU, LANCE SWAN, BRYAN IRWIN, VLADIMIR PELEKHATY
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Patent number: 7972650Abstract: A method for manufacturing an electronic circuit in three-dimensional space provides for interconnecting electronic components within the circuit by directly writing conducting lines. The method may include observing a direct writing tool of a direct write system using a vision system, determining proper placement of the direct writing tool at least partially based on the step of observing, and directly writing conducting lines in three dimensions using the proper placement. The direct writing may be on a surface or in free space. The method may include stacking a plurality of chips to provide a stack having a top surface and edges extending away from the top and interconnecting connections of the chips by directly writing conducting lines along one of the edges.Type: GrantFiled: July 13, 2006Date of Patent: July 5, 2011Assignee: nScrypt, Inc.Inventors: Kenneth H. Church, Patrick Clark, Dongjiang Xu, Lance Swan, Bryan Irwin, Vladimir Pelekhaty
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Patent number: 7342712Abstract: The present invention provides an optical telecommunications network that includes at least one of a filter having equal group delay ripple and minimized phase non-linearity which is formed by the process including limiting at least one of the group delay ripple and the phase non-linearity of the filter between a predetermined upper boundary and a predetermined lower boundary, wherein such limiting includes selecting a baseline filter of a predetermined order having a given transmission at a given frequency from a center frequency of the baseline filter; deriving a scaling factor by, where the given transmission of the baseline filter is equal to a predetermined transmission of the filter, comparing the given frequency from the center frequency of the baseline filter to a predetermined frequency from a center frequency of the filter; applying the scaling factor to a denominator polynomial of the baseline filter to obtain a denominator polynomial of the filter; and performing simplex-type multi-parameter optimType: GrantFiled: October 7, 2005Date of Patent: March 11, 2008Assignee: Ciena CorporationInventor: Vladimir Pelekhaty
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Patent number: 7254327Abstract: A universal in-service monitoring scheme to monitor performances of optical networks, including elements that make up the optical network, is proposed. The elements may be a wavelength selective switch or an optical cross connect. In this scheme, a small tunable probe signal is injected into the optical network via an input of the network. An output signal is received at the output and processed to determine if the probe signal is contained within the output signal. The scheme is such that probe signal injection and detection devices need not be physically co-located. Thus, the scheme is useful to test even optical network that spans thousands of miles. The probe signal is non-interfering with the network traffic so the network can be providing service while its performance is monitored. As examples of the probe signal detection mechanisms include lock-in amplification and coherent detection.Type: GrantFiled: February 2, 2004Date of Patent: August 7, 2007Assignee: CIENA CorporationInventors: Shan Zhong, Vladimir Pelekhaty, Jean-Luc Archambault
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Publication number: 20070081247Abstract: The present invention provides an optical telecommunications network that includes at least one of a filter having equal group delay ripple and minimized phase non-linearity which is formed by the process including limiting at least one of the group delay ripple and the phase non-linearity of the filter between a predetermined upper boundary and a predetermined lower boundary, wherein such limiting includes selecting a baseline filter of a predetermined order having a given transmission at a given frequency from a center frequency of the baseline filter; deriving a scaling factor by, where the given transmission of the baseline filter is equal to a predetermined transmission of the filter, comparing the given frequency from the center frequency of the baseline filter to a predetermined frequency from a center frequency of the filter; applying the scaling factor to a denominator polynomial of the baseline filter to obtain a denominator polynomial of the filter; and performing simplex-type multi-parameter optimType: ApplicationFiled: October 7, 2005Publication date: April 12, 2007Applicant: CIENA CORPORATIONInventor: Vladimir Pelekhaty
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Patent number: 7184215Abstract: An exemplary embodiment of the invention is an optical filter including a mirror including a plurality of first dielectric layers having a first index of refraction and a plurality of second dielectric layers having a second index of refraction. A plurality of the first dielectric layers have an integer quarter wave optical thickness and at least one of the first dielectric layers has a non-integer quarter wave optical thickness. A plurality of the second dielectric layers have an integer quarter wave optical thickness and at least one of the second dielectric layers has a non-integer quarter wave optical thickness. In an exemplary embodiment, the non-integer quarter wave optical thickness first layer and the non-integer quarter wave optical thickness second layer are determined so as to enhance transmission at a predetermined wavelength.Type: GrantFiled: June 22, 2004Date of Patent: February 27, 2007Assignee: Ciena CorporationInventor: Vladimir Pelekhaty
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Publication number: 20050024728Abstract: An exemplary embodiment of the invention is an optical filter including a mirror including a plurality of first dielectric layers having a first index of refraction and a plurality of second dielectric layers having a second index of refraction. A plurality of the first dielectric layers have an integer quarter wave optical thickness and at least one of the first dielectric layers has a non-integer quarter wave optical thickness. A plurality of the second dielectric layers have an integer quarter wave optical thickness and at least one of the second dielectric layers has a non-integer quarter wave optical thickness. In an exemplary embodiment, the non-integer quarter wave optical thickness first layer and the non-integer quarter wave optical thickness second layer are determined so as to enhance transmission at a predetermined wavelength.Type: ApplicationFiled: June 22, 2004Publication date: February 3, 2005Inventor: Vladimir Pelekhaty
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Patent number: 6844977Abstract: An exemplary embodiment of the invention is an optical filter including a mirror including a plurality of first dielectric layers having a first index of refraction and a plurality of second dielectric layers having a second index of refraction. A plurality of the first dielectric layers have an integer quarter wave optical thickness and at least one of the first dielectric layers has a non-integer quarter wave optical thickness. A plurality of the second dielectric layers have an integer quarter wave optical thickness and at least one of the second dielectric layers has a non-integer quarter wave optical thickness. In an exemplary embodiment, the non-integer quarter wave optical thickness first layer and the non-integer quarter wave optical thickness second layer are determined so as to enhance transmission at a predetermined wavelength.Type: GrantFiled: January 25, 2002Date of Patent: January 18, 2005Assignee: Ciena CorporationInventor: Vladimir Pelekhaty