Patents by Inventor Dan Charash
Dan Charash 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: 11983607Abstract: A quantum computing system, method and computer readable storage medium involve tuning a whispering-gallery mode optical resonator to support a resonance frequency associated with a transition frequency of an atom. Operation of a laser is controlled to cause the atom to be trapped adjacent the optical resonator and within the evanescent field portion. Based on an atom presence signal from an optical atom presence detector, an indication is provided that the atom is trapped adjacent the optical resonator. A frequency of a cooling laser is controlled to cool the atom, and the optical resonator is configured to define a closed loop-like mode including an evanescent field portion. The trapping laser is configured to cause the atom to be trapped adjacent the whispering-gallery mode resonator, and the cooling laser is configured to manipulate a state of the atom to thereby cool the atom.Type: GrantFiled: April 14, 2023Date of Patent: May 14, 2024Assignees: Yeda Research and Development Co. Ltd., Quantum Source Labs Ltd.Inventors: Gil Semo, Ziv Aqua, Oded Melamed, Dan Charash, Serge Rosenblum, Barak Dayan
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Patent number: 11977955Abstract: A quantum computing system comprises a plurality of photonic cavities, a plurality of coupling locations for quantum emitter positioning, a photon generator configured to supply photons to the plurality of photonic cavities, and a plurality of photon output channels downstream of the plurality of cavities to output a graph state. Each coupling location is associated with a differing one of the plurality of photonic cavities. Quantum emitters associated with each coupling location are configured to mediate interactions between consecutive incoming photonic qubits to generate the graph state, and the photonic cavities are configured to couple photonic qubits to the quantum emitters.Type: GrantFiled: April 13, 2023Date of Patent: May 7, 2024Assignees: Yeda Research and Development Co. Ltd., Quantum Source Labs Ltd.Inventors: Gil Semo, Ziv Aqua, Oded Melamed, Dan Charash, Serge Rosenblum, Barak Dayan
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Patent number: 11972324Abstract: Generating photonic graph states includes positioning a plurality of quantum emitters at a plurality of coupling sites associated with a plurality of cavities and initializing a state of a quantum emitter qubit associated with each of the plurality of quantum emitters. Photonic qubits are transmitted toward the plurality of the quantum emitters a first instance transmission for generating an entangling gate between the photonic qubits and the quantum emitter qubit in order to entangle the quantum emitter qubit and the photonic qubits. Following the first instance transmission, photonic qubits are transmitted toward the plurality of quantum emitters in a one second instance transmission for generating a SWAP gate between the photonic qubits and the quantum emitter qubits to map the quantum emitter qubits to photonic qubits.Type: GrantFiled: April 13, 2023Date of Patent: April 30, 2024Assignees: Yeda Research and Development Co. Ltd., Quantum Source Labs Ltd.Inventors: Gil Semo, Ziv Aqua, Oded Melamed, Dan Charash, Serge Rosenblum, Barak Dayan
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Publication number: 20240127099Abstract: A quantum computing system includes a first resonator couplable to a first alkali atom, a second resonator couplable to a second alkali atom, and lasers for trapping, cooling, and manipulating the first alkali atom and the second alkali atom. Detectors detect a presence of the trapped first alkali atom and the trapped second alkali atom, and a processor is configured to receive at least one input signal from at least one of the detectors, the input signal indicating a presence of the trapped first alkali atom and the trapped second alkali atom, and, based on the received input, control at least some of the lasers to manipulate at least one of the trapped first alkali atom and the trapped second alkali atom to thereby generate photonic qubits using the trapped first alkali atom or generate entanglement between photonic qubits transmitted to the trapped second alkali atom.Type: ApplicationFiled: October 10, 2023Publication date: April 18, 2024Applicants: QUANTUM SOURCE LABS LTD., YEDA RESEARCH AND DEVELOPMENT CO. LTD.Inventors: Gil SEMO, Ziv AQUA, Oded MELAMED, Dan CHARASH, Serge ROSENBLUM, Barak DAYAN
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Publication number: 20230419150Abstract: A quantum computing system, method and computer readable storage medium involve tuning a whispering-gallery mode optical resonator to support a resonance frequency associated with a transition frequency of an atom. Operation of a laser is controlled to cause the atom to be trapped adjacent the optical resonator and within the evanescent field portion. Based on an atom presence signal from an optical atom presence detector, an indication is provided that the atom is trapped adjacent the optical resonator. A frequency of a cooling laser is controlled to cool the atom, and the optical resonator is configured to define a closed loop-like mode including an evanescent field portion. The trapping laser is configured to cause the atom to be trapped adjacent the whispering-gallery mode resonator, and the cooling laser is configured to manipulate a state of the atom to thereby cool the atom.Type: ApplicationFiled: April 14, 2023Publication date: December 28, 2023Applicants: QUANTUM SOURCE LABS LTD., YEDA RESEARCH AND DEVELOPMENT CO. LTD.Inventors: Gil SEMO, Ziv AQUA, Oded MELAMED, Dan CHARASH, Serge ROSENBLUM, Barak DAYAN
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Publication number: 20230419149Abstract: A quantum computing system comprises a plurality of photonic cavities, a plurality of coupling locations for quantum emitter positioning, a photon generator configured to supply photons to the plurality of photonic cavities, and a plurality of photon output channels downstream of the plurality of cavities to output a graph state. Each coupling location is associated with a differing one of the plurality of photonic cavities. Quantum emitters associated with each coupling location are configured to mediate interactions between consecutive incoming photonic qubits to generate the graph state, and the photonic cavities are configured to couple photonic qubits to the quantum emitters.Type: ApplicationFiled: April 13, 2023Publication date: December 28, 2023Applicants: QUANTUM SOURCE LABS LTD., YEDA RESEARCH AND DEVELOPMENT CO. LTD.Inventors: Gil SEMO, Ziv AQUA, Oded MELAMED, Dan CHARASH, Serge ROSENBLUM, Barak DAYAN
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Patent number: 11847535Abstract: A quantum computing system includes a first silicon nitride resonator couplable to a first alkali atom, a second silicon resonator couplable to a second alkali atom, and a plurality of lasers for trapping, cooling, and manipulating the first alkali atom and the second alkali atom. Detectors detect a presence of the trapped first alkali atom and the trapped second alkali atom, and a processor is configured to receive at least one input signal from at least one of the detectors, the input signal indicating a presence of the trapped first alkali atom and the trapped second alkali atom, and, based on the received input, control at least some of the plurality of lasers to manipulate at least one of the trapped first alkali atom and the trapped second alkali atom to thereby generate photonic qubits using the trapped first alkali atom or generate entanglement between photonic qubits transmitted to the trapped second alkali atom.Type: GrantFiled: April 14, 2023Date of Patent: December 19, 2023Assignees: Yeda Research and Development Co. Ltd., Quantum Source Labs Ltd.Inventors: Gil Semo, Ziv Aqua, Oded Melamed, Dan Charash, Serge Rosenblum, Barak Dayan
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Publication number: 20230297872Abstract: A quantum computing system includes a first silicon nitride resonator couplable to a first alkali atom, a second silicon resonator couplable to a second alkali atom, and a plurality of lasers for trapping, cooling, and manipulating the first alkali atom and the second alkali atom. Detectors detect a presence of the trapped first alkali atom and the trapped second alkali atom, and a processor is configured to receive at least one input signal from at least one of the detectors, the input signal indicating a presence of the trapped first alkali atom and the trapped second alkali atom, and, based on the received input, control at least some of the plurality of lasers to manipulate at least one of the trapped first alkali atom and the trapped second alkali atom to thereby generate photonic qubits using the trapped first alkali atom or generate entanglement between photonic qubits transmitted to the trapped second alkali atom.Type: ApplicationFiled: April 14, 2023Publication date: September 21, 2023Applicants: QUANTUM SOURCE LABS LTD., YEDA RESEARCH AND DEVELOPMENT CO. LTD.Inventors: Gil SEMO, Ziv AQUA, Oded MELAMED, Dan CHARASH, Serge ROSENBLUM, Barak DAYAN
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Publication number: 20230267359Abstract: Generating photonic graph states includes positioning a plurality of quantum emitters at a plurality of coupling sites associated with a plurality of cavities and initializing a state of a quantum emitter qubit associated with each of the plurality of quantum emitters. Photonic qubits are transmitted toward the plurality of the quantum emitters a first instance transmission for generating an entangling gate between the photonic qubits and the quantum emitter qubit in order to entangle the quantum emitter qubit and the photonic qubits. Following the first instance transmission, photonic qubits are transmitted toward the plurality of quantum emitters in a one second instance transmission for generating a SWAP gate between the photonic qubits and the quantum emitter qubits to map the quantum emitter qubits to photonic qubits.Type: ApplicationFiled: April 13, 2023Publication date: August 24, 2023Applicants: QUANTUM SOURCE LABS LTD., YEDA RESEARCH AND DEVELOPMENT CO. LTD.Inventors: Gil SEMO, Ziv AQUA, Oded MELAMED, Dan CHARASH, Serge ROSENBLUM, Barak DAYAN
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Patent number: 7844217Abstract: A communication terminal includes first and second antennas for respectively communicating with first and second remote terminals and a single up-converter that is arranged to up-convert an input signal to produce an RF transmit signal. The communication terminal further includes a switching circuit, which is arranged to couple the single up-converter to the first antenna in order to transmit the RF transmit signal to the first remote terminal during first time intervals, and to couple the single up-converter to the second antenna in order to transmit the RF transmit signal to the second remote terminal during second time intervals, which do not overlap the first time intervals.Type: GrantFiled: October 1, 2007Date of Patent: November 30, 2010Assignee: Provigent Ltd.Inventor: Dan Charash
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Publication number: 20090088103Abstract: A communication terminal includes first and second antennas for respectively communicating with first and second remote terminals and a single up-converter that is arranged to up-convert an input signal to produce an RF transmit signal. The communication terminal further includes a switching circuit, which is arranged to couple the single up-converter to the first antenna in order to transmit the RF transmit signal to the first remote terminal during first time intervals, and to couple the single up-converter to the second antenna in order to transmit the RF transmit signal to the second remote terminal during second time intervals, which do not overlap the first time intervals.Type: ApplicationFiled: October 1, 2007Publication date: April 2, 2009Inventor: Dan Charash
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Patent number: 7501982Abstract: A method for antenna alignment includes defining a first link budget for wireless communication between first and second communication systems via respective first and second antennas in a normal operational mode in which a main lobe of the first antenna points toward the second antenna. The first antenna is aligned to point to the second antenna responsively to an alignment indication provided by communicating between the first and second communication systems in an alignment operational mode having a second link budget greater than the first link budget.Type: GrantFiled: October 16, 2006Date of Patent: March 10, 2009Assignee: Provigent Ltd.Inventors: Dan Charash, Ahikam Aharony
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Publication number: 20080088518Abstract: A method for antenna alignment includes defining a first link budget for wireless communication between first and second communication systems via respective first and second antennas in a normal operational mode in which a main lobe of the first antenna points toward the second antenna. The first antenna is aligned to point to the second antenna responsively to an alignment indication provided by communicating between the first and second communication systems in an alignment operational mode having a second link budget greater than the first link budget.Type: ApplicationFiled: October 16, 2006Publication date: April 17, 2008Applicant: PROVIGENT LTD.Inventors: Dan Charash, Ahikam Aharony
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Point-to-point link using partial transmit time periods on separate transmit and receive frequencies
Publication number: 20080019336Abstract: A communication system includes a directional antenna. The system includes a transmitter, which is arranged to transmit first signals in a first frequency band to a remote communication system over a point-to-point communication link via the directional antenna during first time intervals. The system further includes a receiver, which is arranged to receive second signals in a second frequency band, different from the first frequency band, from the remote communication system over the point-to-point communication link via the directional antenna only during second time intervals that do not overlap the first time intervals.Type: ApplicationFiled: July 24, 2006Publication date: January 24, 2008Applicant: PROVIGENT LTD.Inventor: Dan Charash -
Patent number: 7046753Abstract: A receiver includes an input circuit, which is coupled to at least one antenna so as to receive, process and digitize first and second signals, thus generating first and second streams of input samples. An interference cancellation circuit includes first and second processing chains, which are reaspectively coupled to filter the first and second streams of input samples using respective first and second adaptive coefficients to generate respective first and second filter outputs, at least one of the first and second processing chains being further adapted to apply a variable phase shift so as to compensate for a phase deviation between the first and second signals. An adder sums the first and second filter outputs so as to generate a third stream of output samples, which is representative of the first signal. A coefficient controller is operative to set the first and second adaptive coefficients and to separately set the variable phase shift responsively to the output samples.Type: GrantFiled: June 29, 2004Date of Patent: May 16, 2006Assignee: Provigent Ltd.Inventors: Guy Resheff, Dan Charash
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Patent number: 7037261Abstract: The fundamental frequency of EIG events is determined directly, without first detecting the events themselves. Use is made of an analysis window containing more than one event (3–5). Techniques (1–8) are utilized which are somewhat similar to those utilized to detect, and estimate pitch in speech processing. The invention is based on two important biological discoveries. The first is that the EIG is generated by a functional pace maker. The second is that the EIG signal is quasi-periodic most of the time. The use of pitch detection algorithms is based on the essentially quasi-periodic nature of the EIG signal. Quasi-periodic means that the intervals between successive events are not exactly identical, but may vary slightly, that the amplitude and shape of successive events may also exhibit some variance.Type: GrantFiled: September 15, 2004Date of Patent: May 2, 2006Assignee: Carmel Biosensors Ltd.Inventor: Dan Charash
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Publication number: 20050286665Abstract: A receiver includes an input circuit, which is coupled to at least one antenna so as to receive, process and digitize first and second signals, thus generating first and second streams of input samples. An interference cancellation circuit includes first and second processing chains, which are reaspectively coupled to filter the first and second streams of input samples using respective first and second adaptive coefficients to generate respective first and second filter outputs, at least one of the first and second processing chains being further adapted to apply a variable phase shift so as to compensate for a phase deviation between the first and second signals. An adder sums the first and second filter outputs so as to generate a third stream of output samples, which is representative of the first signal. A coefficient controller is operative to set the first and second adaptive coefficients and to separately set the variable phase shift responsively to the output samples.Type: ApplicationFiled: June 29, 2004Publication date: December 29, 2005Applicant: PROVIGENT LTD.Inventors: Guy Resheff, Dan Charash
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Patent number: 6884215Abstract: The fundamental frequency of EIG events is determined directly, without first detecting the events themselves. Use is made of an analysis window containing more than one event (3-5). Techniques (1-8) are utilized which are somewhat similar to those utilized to detect, and estimate pitch in speech processing. The invention is based on two important biological discoveries. The first is that the EIG is generated by a functional pace maker. The second is that the EIG signal is quasi-periodic most of the time. The use of pitch detection algorithms is based on the essentially quasi-periodic nature of the EIG signal. Quasi-periodic means that the intervals between successive events are not exactly identical, but may vary slightly, that the amplitude and shape of successive events may also exhibit some variance.Type: GrantFiled: May 28, 1999Date of Patent: April 26, 2005Assignee: Carmel Biosensors Ltd.Inventor: Dan Charash
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Publication number: 20050033126Abstract: The fundamental frequency of EIG events is determined directly, without first detecting the events themselves. Use is made of an analysis window containing more than one event (3-5). Techniques (1-8) are utilized which are somewhat similar to those utilized to detect, and estimate pitch in speech processing. The invention is based on two important biological discoveries. The first is that the EIG is generated by a functional pace maker. The second is that the EIG signal is quasi-periodic most of the time. The use of pitch detection algorithms is based on the essentially quasi-periodic nature of the EIG signal. Quasi-periodic means that the intervals between successive events are not exactly identical, but may vary slightly, that the amplitude and shape of successive events may also exhibit some variance.Type: ApplicationFiled: September 15, 2004Publication date: February 10, 2005Inventor: Dan Charash