Patents by Inventor Alon Webman
Alon Webman 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: 10522977Abstract: An electro-optical link is provided. In an example embodiment, the electro-optical link includes a number of vertical cavity surface emitting lasers (VCSELs); one or more drivers that operate the VCSELs such that each of the VCSELs selectively emits an optical signal; one or more multiplexers that multiplex a number of optical signals into an optical fiber, each optical signal emitted by one of the VCSELs; and one or more optical fibers. At least two optical signals are multiplexed into each optical fiber of the one or more optical fibers. In some example configurations eight or sixteen optical signals are multiplexed into one optical fiber.Type: GrantFiled: November 2, 2018Date of Patent: December 31, 2019Assignee: Mellanox Technologies, Ltd.Inventors: Elad Mentovich, Itshak Kalifa, Sylvie Rockman, Eyal Waldman, Alon Webman, Isabelle Cestier
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Patent number: 10462075Abstract: A switching device includes a plurality of ports and a switching core, which is coupled to transfer data packets between ingress and egress ports. Switching logic maintains a descriptor queue containing respective descriptors corresponding to the data packets that have been received and queued by the ports, and responsively to the respective descriptors, instructs the switching core to transfer the queued data packets between the ports. Port logic, which is associated with each port, is configured, upon receipt of a data packet from the network at the port, to signal the switching logic to place a descriptor corresponding to the data packet in the descriptor queue and, upon identifying the data packet as meeting a predefined criterion, to convey a request to the switching logic, bypassing the descriptor queue, to instruct the switching core to transfer the data packet immediately to an egress port.Type: GrantFiled: March 28, 2017Date of Patent: October 29, 2019Assignee: Mellanox Technologies, Ltd.Inventors: Freddy Gabbay, Ido Bukshpan, Alon Webman, Miriam Menes, George Elias, Noam Katz Abramovich
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Patent number: 10203366Abstract: A transducer reliability testing and VCSEL failure prediction method are provided. The method includes applying a testing temperature and a constant current to a VCSEL for a testing time. The method monitors a forward voltage of the VCSEL and determines if a first change in forward voltage is above a first predetermined threshold over the testing time and if a second change in forward voltage is above a second predetermined threshold over a portion of the testing time. The method determines failure of the VCSEL if either of these predetermined thresholds are exceeded. The method determines passage of the VCSEL if the first change in the forward voltage and the second change in the forward voltage are both below the first predetermined threshold and the second predetermined threshold, respectively.Type: GrantFiled: June 30, 2016Date of Patent: February 12, 2019Assignee: MELLANOX TECHNOLOGIES, LTD.Inventors: Alex Burlak, Lion Bassat, Itshak Kalifa, Kfir Margalit, Morees Ghandour, Alon Webman, Elad Mentovich, Sylvie Rockman, Evelyn Landman
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Patent number: 10177841Abstract: An electro-optic transceiver module, method of manufacturing, and method of transmitting signals are provided that allow multiple optical signals at different wavelengths (e.g., according to CWDM) to be combined for transmission via a number of optical fibers that is smaller than the number of electrical channels according to which the optical signals were generated. Thus, CWDM may be used in connection with lower-cost VCSEL technology (e.g., as opposed to higher-cost edge-emitting lasers) by providing for wavelength compensation at the VCSEL driver to offset any changes in wavelength that may have otherwise occurred at the VCSELs. In particular, a microcontroller of the electro-optic transceiver module correlates a monitored temperature of the VCSELs to an actual wavelength of the corresponding optical signals transmitted by the respective VCSELS and determined an adjustment in a current supplied by the VCSEL driver to each VCSEL to achieve more precise and consistent wavelengths at the VCSELs.Type: GrantFiled: March 31, 2016Date of Patent: January 8, 2019Assignee: MELLANOX TECHNOLOGIES, LTD.Inventors: Elad Mentovich, Itshak Kalifa, Sylvie Rockman, Alon Webman, Dalit Kimhi, Alex Dikopoltsev
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Patent number: 10088639Abstract: An opto-mechanical coupler and corresponding method are provided. The coupler may include a first end and a second end configured to receive optical fibers and a top surface and bottomed surface defining a through hole extending between the top and bottom surfaces. The coupler may include a reflective surface that redirects the optical signals between a first direction and a second direction substantially perpendicular to the first direction. The coupler may position one or more optical fibers along a second direction such that an optical signal from the plurality of optoelectronic transceivers is directed into one or more optical fibers or an optical signal from the one or more optical fibers is directed into a plurality of the optoelectronic transceivers, with the coupler accommodating different diameters of optical fiber including POF, SMF, and/or MMF fiber.Type: GrantFiled: June 28, 2016Date of Patent: October 2, 2018Assignee: Mellanox Technologies, Ltd.Inventors: Elad Mentovich, Itshak Kalifa, Sylvie Rockman, Alon Webman, Amir Prescher, Evelyn Landman, Anna Sandomirsky, Eitan Zahavi, Yaakov Gridish
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Patent number: 9983371Abstract: An apparatus and method of assembly are described that provide improved mechanisms for cooling an optoelectronic transducer in a fiber optic system. The apparatus includes a thermoelectric cooler (TEC) secured to the optoelectronic transducer for removing heat from the optoelectronic transducer in response to instructions from a TEC driver, as well as a microcontroller electrically connected to the TEC driver for monitoring temperature and communicating with the TEC driver to selectively activate and deactivate the TEC at least partially based on the monitored temperature and/or other measured/detected data to effect a more efficient cooling mechanism for optoelectronic transducers, such as VCSELs. In addition, the user may be able to configure the system to maintain the optoelectronic transducer within a user-defined range of temperatures.Type: GrantFiled: March 8, 2016Date of Patent: May 29, 2018Assignee: Mellanox Technologies, Ltd.Inventors: Morees Ghandour, Elad Mentovich, Itshak Kalifa, Sylvie Rockman, Dalit Kimhi, Alon Webman
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Method of configuring an optoelectronic system for accommodating different fiber optic cable lengths
Patent number: 9948386Abstract: An optoelectronic configuration method is provided. The method includes determining a baseline link budget value for the VCSEL. The method applies a constant input value to a VCSEL and monitors the output of the VCSEL. The method calculates a first link budget value from the inputs and outputs of the VCSEL and compares the first link budget value with the baseline link budget value to determine either a pass state of the VCSEL or a fail state of the VCSEL. If a fail state of the VCSEL is determined, the method may iteratively apply modified inputs to the VCSEL until the desired relationship between the first link budget value and the baseline link budget value is obtained.Type: GrantFiled: December 30, 2016Date of Patent: April 17, 2018Assignee: Mellanox Technologies, Ltd.Inventors: Alon Webman, Elad Mentovich, Sylvie Rockman, Vadim Balakhovski -
Publication number: 20180003762Abstract: A transducer reliability testing and VCSEL failure prediction method are provided. The method includes applying a testing temperature and a constant current to a VCSEL for a testing time. The method monitors a forward voltage of the VCSEL and determines if a first change in forward voltage is above a first predetermined threshold over the testing time and if a second change in forward voltage is above a second predetermined threshold over a portion of the testing time. The method determines failure of the VCSEL if either of these predetermined thresholds are exceeded. The method determines passage of the VCSEL if the first change in the forward voltage and the second change in the forward voltage are both below the first predetermined threshold and the second predetermined threshold, respectively.Type: ApplicationFiled: June 30, 2016Publication date: January 4, 2018Inventors: Alex Burlak, Lion Bassat, Itshak Kalifa, Kfir Margalit, Morees Ghandour, Alon Webman, Elad Mentovich, Sylvie Rockman, Evelyn Landman
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Publication number: 20170371114Abstract: An opto-mechanical coupler and corresponding method are provided. The coupler may include a first end and a second end configured to receive optical fibers and a top surface and bottomed surface defining a through hole extending between the top and bottom surfaces. The coupler may include a reflective surface that redirects the optical signals between a first direction and a second direction substantially perpendicular to the first direction. The coupler may position one or more optical fibers along a second direction such that an optical signal from the plurality of optoelectronic transceivers is directed into one or more optical fibers or an optical signal from the one or more optical fibers is directed into a plurality of the optoelectronic transceivers, with the coupler accommodating different diameters of optical fiber including POF, SMF, and/or MMF fiber.Type: ApplicationFiled: June 28, 2016Publication date: December 28, 2017Inventors: Elad Mentovich, Itshak Kalifa, Sylvie Rockman, Alon Webman, Amir Prescher, Evelyn Landman, Anna Sandomirsky, Eitan Zahavi, Yaakov Gridish
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Publication number: 20170288770Abstract: An electro-optic transceiver module, method of manufacturing, and method of transmitting signals are provided that allow multiple optical signals at different wavelengths (e.g., according to CWDM) to be combined for transmission via a number of optical fibers that is smaller than the number of electrical channels according to which the optical signals were generated. Thus, CWDM may be used in connection with lower-cost VCSEL technology (e.g., as opposed to higher-cost edge-emitting lasers) by providing for wavelength compensation at the VCSEL driver to offset any changes in wavelength that may have otherwise occurred at the VCSELs. In particular, a microcontroller of the electro-optic transceiver module correlates a monitored temperature of the VCSELs to an actual wavelength of the corresponding optical signals transmitted by the respective VCSELS and determined an adjustment in a current supplied by the VCSEL driver to each VCSEL to achieve more precise and consistent wavelengths at the VCSELs.Type: ApplicationFiled: March 31, 2016Publication date: October 5, 2017Inventors: Elad Mentovich, Itshak Kalifa, Sylvie Rockman, Alon Webman, Dalit Kimhi, Alex Dikopoltsev
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Publication number: 20170261712Abstract: An apparatus and method of assembly are described that provide improved mechanisms for cooling an optoelectronic transducer in a fiber optic system. The apparatus includes a thermoelectric cooler (TEC) secured to the optoelectronic transducer for removing heat from the optoelectronic transducer in response to instructions from a TEC driver, as well as a microcontroller electrically connected to the TEC driver for monitoring temperature and communicating with the TEC driver to selectively activate and deactivate the TEC at least partially based on the monitored temperature and/or other measured/detected data to effect a more efficient cooling mechanism for optoelectronic transducers, such as VCSELs. In addition, the user may be able to configure the system to maintain the optoelectronic transducer within a user-defined range of temperatures.Type: ApplicationFiled: March 8, 2016Publication date: September 14, 2017Inventors: Morees Ghandour, Elad Mentovich, Itshak Kalifa, Sylvie Rockman, Dalit Kimhi, Alon Webman
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Publication number: 20170201468Abstract: A switching device includes a plurality of ports and a switching core, which is coupled to transfer data packets between ingress and egress ports. Switching logic maintains a descriptor queue containing respective descriptors corresponding to the data packets that have been received and queued by the ports, and responsively to the respective descriptors, instructs the switching core to transfer the queued data packets between the ports. Port logic, which is associated with each port, is configured, upon receipt of a data packet from the network at the port, to signal the switching logic to place a descriptor corresponding to the data packet in the descriptor queue and, upon identifying the data packet as meeting a predefined criterion, to convey a request to the switching logic, bypassing the descriptor queue, to instruct the switching core to transfer the data packet immediately to an egress port.Type: ApplicationFiled: March 28, 2017Publication date: July 13, 2017Inventors: Freddy Gabbay, Ido Bukshpan, Alon Webman, Miriam Menes, George Elias, Noam Katz Abramovich
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Patent number: 9692511Abstract: A reconfigurable and redundant electro-optical connector and corresponding method are provided. The connector may include a first plurality of transducers in communication with a first port and a second plurality of transducers in communication with a second port, the first port and the first transducers defining a first channel and the second port and the second transducers defining a second channel. The connector may include a selective combiner to combine the first optical signals and the second optical signals, and a controller in communication with each of the transducers. The controller may transmit at least a first portion of a first datalink on at least the first channel in a first configuration. The controller may redistribute the first portion of the first datalink onto at least the second channel in a second configuration.Type: GrantFiled: March 28, 2016Date of Patent: June 27, 2017Assignee: Mellanox Technologies, Ltd.Inventors: Alon Webman, Evelyn Landman, Eyal Waldman, Elad Mentovich, Sylvie Rockman, Itshak Kalifa, Yaakov Gridish
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Patent number: 9641465Abstract: A switching device includes a plurality of ports and a switching core, which is coupled to transfer data packets between ingress and egress ports. Switching logic maintains a descriptor queue containing respective descriptors corresponding to the data packets that have been received and queued by the ports, and responsively to the respective descriptors, instructs the switching core to transfer the queued data packets between the ports. Port logic, which is associated with each port, is configured, upon receipt of a data packet from the network at the port, to signal the switching logic to place a descriptor corresponding to the data packet in the descriptor queue and, upon identifying the data packet as meeting a predefined criterion, to convey a request to the switching logic, bypassing the descriptor queue, to instruct the switching core to transfer the data packet immediately to an egress port.Type: GrantFiled: August 22, 2013Date of Patent: May 2, 2017Assignee: Mellanox Technologies, LtdInventors: Freddy Gabbay, Ido Bukshpan, Alon Webman, Miriam Menes, George Elias, Noam Katz Abramovich
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Patent number: 9582440Abstract: An apparatus includes multiple data sources and arbitration circuitry. The data sources are configured to send to a common destination data items and respective arbitration requests, such that the data items are sent to the destination regardless of receiving any indication that the data items were served to the destination in response to the respective arbitration requests. The arbitration circuitry is configured to receive and buffer the data items, to perform arbitration on the buffered data items responsively to the arbitration requests, and to serve the buffered data items to the destination in accordance with the arbitration.Type: GrantFiled: February 10, 2013Date of Patent: February 28, 2017Assignee: Mellanox Technologies Ltd.Inventors: Freddy Gabbay, Amiad Marelli, Alon Webman, Zachy Haramaty
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Publication number: 20140229645Abstract: An apparatus includes multiple data sources and arbitration circuitry. The data sources are configured to send to a common destination data items and respective arbitration requests, such that the data items are sent to the destination regardless of receiving any indication that the data items were served to the destination in response to the respective arbitration requests. The arbitration circuitry is configured to receive and buffer the data items, to perform arbitration on the buffered data items responsively to the arbitration requests, and to serve the buffered data items to the destination in accordance with the arbitration.Type: ApplicationFiled: February 10, 2013Publication date: August 14, 2014Applicant: Mellanox Technologies Ltd.Inventors: Freddy Gabbay, Amiad Marelli, Alon Webman, Zachy Haramaty
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Patent number: 8644140Abstract: A communication apparatus includes a plurality of switch ports, each switch port including one or more port buffers for buffering data that traverses the switch port. A switch fabric is coupled to transfer the data between the switch ports. A switch control unit is configured to reassign at least one port buffer of a given switch port to buffer a part of the data that does not enter or exit the apparatus via the given switch port, and to cause the switch fabric to forward the part of the data to a destination switch port via the at least one reassigned port buffer.Type: GrantFiled: September 7, 2010Date of Patent: February 4, 2014Assignee: Mellanox Technologies Ltd.Inventors: Gil Bloch, Diego Crupnicoff, Michael Kagan, Ido Bukspan, Alon Webman, Itamar Rabenstein
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Patent number: 8576715Abstract: A method for communication includes routing a first packet, which belongs to a given packet flow, over a first routing path through a communication network. A second packet, which follows the first packet in the given packet flow, is routed using a time-bounded Adaptive Routing (AR) mode, by evaluating a time gap between the first and second packets, routing the second packet over the first routing path if the time gap does not exceed a predefined threshold, and, if the time gap exceeds the predefined threshold, selecting a second routing path through the communication network that is potentially different from the first routing path, and routing the second packet over the second routing path.Type: GrantFiled: October 25, 2010Date of Patent: November 5, 2013Assignee: Mellanox Technologies Ltd.Inventors: Gil Bloch, Diego Crupnicoff, Michael Kagan, Ido Bukspan, Itamar Rabenstein, Alon Webman, Amiad Marelli
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Publication number: 20110096668Abstract: A method for communication includes routing a first packet, which belongs to a given packet flow, over a first routing path through a communication network. A second packet, which follows the first packet in the given packet flow, is routed using a time-bounded Adaptive Routing (AR) mode, by evaluating a time gap between the first and second packets, routing the second packet over the first routing path if the time gap does not exceed a predefined threshold, and, if the time gap exceeds the predefined threshold, selecting a second routing path through the communication network that is potentially different from the first routing path, and routing the second packet over the second routing path.Type: ApplicationFiled: October 25, 2010Publication date: April 28, 2011Applicant: MELLANOX TECHNOLOGIES LTD.Inventors: Gil BLOCH, Diego CRUPNICOFF, Michael KAGAN, Ido BUKSPAN, Itamar RABENSTEIN, Alon WEBMAN, Amiad MARELLI
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Publication number: 20110058571Abstract: A communication apparatus includes a plurality of switch ports, each switch port including one or more port buffers for buffering data that traverses the switch port. A switch fabric is coupled to transfer the data between the switch ports. A switch control unit is configured to reassign at least one port buffer of a given switch port to buffer a part of the data that does not enter or exit the apparatus via the given switch port, and to cause the switch fabric to forward the part of the data to a destination switch port via the at least one reassigned port buffer.Type: ApplicationFiled: September 7, 2010Publication date: March 10, 2011Applicant: MELLANOX TECHNOLOGIES LTD.Inventors: Gil Bloch, Diego Crupnicoff, Michael Kagan, Ido Bukspan, Alon Webman, Itamar Rabenstein