Patents by Inventor Arieh Sher
Arieh Sher 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: 8885985Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: GrantFiled: August 29, 2012Date of Patent: November 11, 2014Assignee: Kailight Photonics, Inc.Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Publication number: 20120321298Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: ApplicationFiled: August 29, 2012Publication date: December 20, 2012Applicant: Kailight Photonics, Inc.Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Patent number: 8260092Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: GrantFiled: February 21, 2011Date of Patent: September 4, 2012Assignee: Kailight Photonics, Inc.Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Patent number: 8229254Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: GrantFiled: November 14, 2008Date of Patent: July 24, 2012Assignee: Kailight Photonics, Inc.Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Patent number: 8195012Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: GrantFiled: November 14, 2008Date of Patent: June 5, 2012Assignee: Kailight Photonics, Inc.Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Publication number: 20120116205Abstract: An imaging guidewire having at its distal tip at least a first Imaging sensor of a forward looking imaging system directed towards an area to be treated and configured to provide imaging data to a processing system, an optical imaging system directed towards an area that has already been treated and configured to provide imaging data of a treated area to the image processing system and at least one display device for displaying images processed by the image processing system. Operating the imaging guidewire during a medical procedure includes the steps of: Generating an image of an area to be treated; Upon completion of at least a portion of the medical treatment, generating an image of an area that has been treated; and displaying at least the first and second images; wherein each one of the first and second images can be generated by one or more imaging modalities.Type: ApplicationFiled: July 26, 2010Publication date: May 10, 2012Applicant: ARIOMEDICA LTD.Inventor: Arieh Sher
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Publication number: 20110142445Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: ApplicationFiled: February 21, 2011Publication date: June 16, 2011Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Patent number: 7907798Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: GrantFiled: November 17, 2008Date of Patent: March 15, 2011Assignee: Kailight Photonics, Inc.Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Publication number: 20100280534Abstract: Systems and methods of increasing blood flow in a blood vessel with intraluminal plaque. One disclosed method includes inserting an imaging guidewire into the blood vessel to the intraluminal plaque, propelling a catheter with a working head over the guidewire towards the distal end of the guidewire, scanning with the imaging guidewire to generate a cross-section image, radially positioning the catheter using a positioning element, monitoring the image to ascertain that the working head is properly positioned and operating the working head to remove the plaque.Type: ApplicationFiled: April 27, 2010Publication date: November 4, 2010Applicant: ArioMedica Ltd.Inventor: Arieh SHER
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Publication number: 20100174238Abstract: A method for expelling blood and preventing blood from entering portions of an atherectomy system that includes the passage of infusion fluid through a passageway configured in the atherectomy system so as to provide a flow of infusion fluid through an operational mechanism of the atherectomy system and exit the atherectomy system at a higher pressure and higher velocity than that of the blood flow within the blood vessel in which the atherectomy system is operating. The method includes lubricating portions of the atherectomy system by bringing infusion fluid into contact with components of the operational mechanism of the atherectomy system, wherein a relative position of the two components one to another varies during operation.Type: ApplicationFiled: June 12, 2008Publication date: July 8, 2010Applicant: ArioMedica Ltd.Inventor: Arieh Sher
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Patent number: 7734332Abstract: Systems and methods of increasing blood flow in a blood vessel with ultraluminal plaque. One disclosed method includes inserting an imaging guidewire into the blood vessel to the intraluminal plaque, propelling a catheter with a working head over the guidewire towards the distal end of the guidewire, scanning with the imaging guidewire to generate a cross-section image, radially positioning the catheter using a positioning element, monitoring the image to ascertain that the working head is properly positioned and operating the working head to remove the plaque. A computerized system designed, constructed and configured to perform the methods is further disclosed.Type: GrantFiled: October 8, 2003Date of Patent: June 8, 2010Assignee: Ariomedica Ltd.Inventor: Arieh Sher
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Publication number: 20090101002Abstract: A mechanism transforms a longitudinal reciprocation movement of a piston in a cylinder into a combined unidirectional rotation and reciprocating movement of the piston. In order to achieve this transformation the piston includes a closed wave shaped groove on its circumference. The closed wave shaped groove has recesses at its apexes. The recesses break the symmetry of the groove. Balls that are located in the cylinder protrude into the groove. When the piston is reciprocating, the groove slides on the balls. A flexible heat shrink ring secures the balls in place and assures that the balls are constantly biased toward the face of the groove.Type: ApplicationFiled: March 15, 2007Publication date: April 23, 2009Applicant: ARIOMEDICA LTD.Inventor: Arieh Sher
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Publication number: 20090080883Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: ApplicationFiled: November 17, 2008Publication date: March 26, 2009Applicant: Kailight Photonics, Inc.Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Publication number: 20090073561Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: ApplicationFiled: November 14, 2008Publication date: March 19, 2009Applicant: Kailight Photonics, Inc.Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Publication number: 20090073560Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: ApplicationFiled: November 14, 2008Publication date: March 19, 2009Applicant: Kailight Photonics, Inc.Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Patent number: 7454092Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: GrantFiled: October 24, 2006Date of Patent: November 18, 2008Assignee: Kailight Photonics, Inc.Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Publication number: 20080100846Abstract: System and methods for all-optical signal regeneration based on free space optics are described. In one exemplary embodiment, a method for regenerating an optical signal comprises counter-propagating an input signal and a regenerating signal within an all-optical signal regenerator based on free space optics, where the all-optical signal regenerator based on free space optics comprises a Sagnac loop interferometer, and extracting a regenerated output signal from the Sagnac loop interferometer. In another exemplary embodiment, an all-optical signal regenerator based on free space optics comprises a Sagnac loop interferometer, an optical signal input path coupled to a semiconductor optical amplifier of the Sagnac loop interferometer, a regenerating optical signal path coupled to the semiconductor optical amplifier of the Sagnac loop interferometer, and a regenerated optical output path coupled to the Sagnac loop interferometer.Type: ApplicationFiled: October 26, 2006Publication date: May 1, 2008Applicant: Kailight Photonics, Inc.Inventors: Sagie Tsadka, Niv Narkiss, Haim Chayet, Shalva Ben-Ezra, Er'el Granot, Reuven Zaibel, Arieh Sher, Shai Tzadok, Nir Shachar
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Publication number: 20080095538Abstract: Optical transponders with reduced sensitivity to PMD and CD are described. In one embodiment, an optical transponder comprises a differential group delay (DGD) mitigator integrated within the transponder and optically coupled to an optical input port of the optical transponder, an optical receiver integrated within the optical transponder and optically coupled to the DGD mitigator and to an electrical output port of the transponder, and a multi-level transmitter integrated within the optical transponder, where the multi-level transmitter is electrically coupled to an electrical input port and optically coupled to an optical output port of the transponder.Type: ApplicationFiled: October 24, 2006Publication date: April 24, 2008Applicant: Kailight Photonics, Inc.Inventors: Er'el Granot, Roni Dadon, Motti Caspi, Reuven Zaibel, Shai Tzadok, Shalva Ben-Ezra, Yaniv Sadka, Arieh Sher, Sagie Tsadka
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Publication number: 20080095487Abstract: In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.Type: ApplicationFiled: October 24, 2006Publication date: April 24, 2008Applicant: Kailight Photonics, Inc.Inventors: Er'el Granot, Shalva Ben-Ezra, Gil Blecher, Shai Tzadok, Reuven Zaibel, Roni Dadon, Motti Caspi, Haim Chayet, Yehuda Ganz, Arieh Sher
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Publication number: 20060015126Abstract: Systems and methods of increasing blood flow in a blood vessel with ultraluminal plaque. One disclosed method oncludes inserting an imaging guidewire into the blood vessel to the inraluminal plaque, propelling a catheter with a wokring head over the guidewire towards the distal end of the guidewire, scanning with the imaging guidewire to generate a cross-section image, radially positioning the catheter using a positioning element, monitoring the image to ascertain that the working head is properly positioned and operating the workong head to remove th plaque. A computerized system designed, constructed and configured to perform the methods is further disclosed.Type: ApplicationFiled: October 8, 2003Publication date: January 19, 2006Inventor: Arieh Sher