Patents by Inventor Mohamed Jamal Deen
Mohamed Jamal Deen 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: 20220187269Abstract: An electrochemical sensor array for detecting analytes in water, including a frame; a plurality of sensor electrodes each mounted to the frame, including a free chlorine working electrode including a gold thin film and having a free chlorine sensing surface to be exposed to the water; and a reference electrode including a silver thin film and a silver and silver chloride layer and having a reference sensing surface to be exposed to the water. A method of manufacturing an electrochemical sensor array for detecting analytes in water, including forming a free chlorine electrode, including forming a gold thin film on a first base layer; forming a reference electrode, including forming a silver thin film on a second base layer and applying a silver and silver chloride paste to a portion of the silver thin film; and arranging the free chlorine electrode and the reference electrode on a common frame.Type: ApplicationFiled: December 16, 2021Publication date: June 16, 2022Inventors: Arif UI ALAM, Mohamed Jamal DEEN
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Patent number: 9099956Abstract: A method, an apparatus and/or a system of injection locking based power amplifier is disclosed. A method includes inputting a reference signal through an injection circuit of an oscillator circuit that generates an output signal of high power that oscillates at an inherent frequency of oscillation of the oscillator circuit. The method also includes reducing a frequency of the reference signal through a differential transistor pair coupled to the injection circuit of the oscillator circuit. The method further includes locking through a tuning circuit of the oscillator circuit coupled to the differential transistor pair a frequency of the output signal to the reduced frequency of the reference signal based on the power of the reference signal to amplify the power of the reference signal through the oscillator circuit. The frequency of the reference signal is higher than the frequency of the output signal.Type: GrantFiled: April 26, 2011Date of Patent: August 4, 2015Assignee: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Munir Eldesouki, Mohamed Jamal Deen
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Patent number: 8859944Abstract: A method and apparatus of coordinated in-pixel light detection is provided. In one aspect, the method includes implementing an N-number of avalanche photodiodes inside a pixel circuit of a light detection circuit. The method also includes coordinating an output of the N-number of avalanche photodiodes through a counter circuit. The method further includes reducing a deadtime of the light detection circuit by a factor of āNā through the N-number of avalanche photodiodes and the counter circuit operating in concert. The method furthermore includes measuring an intensity of a light through the light detection circuit. N-number of avalanche photodiodes is in a common well of a semiconductor technology. N-number of avalanche photodiodes is fabricated on a deep submicron semiconductor technology. A fill factor of the pixel circuit improves and a deadtime reduces through fabrication of the avalanche photodiodes in a common well. Also, a photon count rate increases through reducing the deadtime.Type: GrantFiled: September 7, 2010Date of Patent: October 14, 2014Assignee: King Abdulaziz City Science and TechnologyInventors: Munir Eldesouki, Mohamed Jamal Deen, Qiyin Fang
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Patent number: 8716643Abstract: A single photon counting image sensor and method is provided. In one aspect, the method of an image sensor includes counting through a counter circuit a number of photons detected through a photodiode when a light is incident on the photodiode. The method also includes storing in a memory circuit a time a count of the number of photons take to match a reference count of the number of photons. In another aspect, an image sensor device includes a pixel circuit. The image sensor device also includes a photodiode circuit of the pixel circuit to detect photons when a light is incident on the photodiode circuit. The image sensor device further includes a counter circuit of the pixel circuit coupled to the photodiode circuit to count a number of photons detected when a light is incident on the avalanche photo diode.Type: GrantFiled: September 6, 2010Date of Patent: May 6, 2014Assignee: King Abdulaziz City Science and TechnologyInventors: Munir Eldesouki, Mohamed Jamal Deen, Qiyin Fang
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Patent number: 8581172Abstract: A high speed analog photon counter and method is provided. In one aspect, the method includes delivering an electric charge to a circuit of the high speed analog photon counter through a current source of the circuit. The method also includes accumulating the electric charge in a capacitor of the circuit electrically coupled to the current source. The method further includes comparing the electric charge accumulated in the capacitor of the circuit with a reference voltage through a comparator of the circuit electrically coupled to an output of the capacitor. The output of the capacitor of the circuit is coupled to an input of the comparator of the circuit, and the reference voltage is coupled to another input of the comparator of the circuit. The method furthermore includes resetting the capacitor of the circuit when the electric charge accumulated in the capacitor of the circuit matches the reference voltage.Type: GrantFiled: October 23, 2012Date of Patent: November 12, 2013Assignee: King Abdulaziz City Science and TechnologyInventors: Munir Eldesouki, Mohamed Jamal Deen, Qiyin Fang
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Patent number: 8410416Abstract: Disclosed are a system, a method and an apparatus of reduction of delay between subsequent capture operations of a light-detection device. In one embodiment, a light-detection circuit includes an avalanche photodiode implemented in a deep submicron CMOS technology. In addition, the light-detection circuit includes a passive quench control circuit to create an avalanche current that generates a high voltage at an output of a second inverter gate of the circuit. The light-detection circuit further includes an active quench control circuit to reduce a dead time of the circuit. The light-detection circuit also includes a reset circuit to create a low voltage at an output of the second inverter gate and to create an active reset through a PMOS transistor of the light-detection circuit.Type: GrantFiled: April 29, 2010Date of Patent: April 2, 2013Assignee: King Abdulaziz City for Science and TechnologyInventors: Munir Eldesouki, Mohamed Jamal Deen, Qiyin Fang
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Patent number: 8338773Abstract: A high speed analog photon counter and method is provided. In one aspect, the method includes delivering an electric charge to a circuit of the high speed analog photon counter through a current source of the circuit. The method also includes accumulating the electric charge in a capacitor of the circuit electrically coupled to the current source. The method further includes comparing the electric charge accumulated in the capacitor of the circuit with a reference voltage through a comparator of the circuit electrically coupled to an output of the capacitor. The output of the capacitor of the circuit is coupled to an input of the comparator of the circuit, and the reference voltage is coupled to another input of the comparator of the circuit. The method furthermore includes resetting the capacitor of the circuit when the electric charge accumulated in the capacitor of the circuit matches the reference voltage.Type: GrantFiled: September 6, 2010Date of Patent: December 25, 2012Assignee: King Abdulaziz City for Science and Technology.Inventors: Munir Eldesouki, Mohamed Jamal Deen, Qiyin Fang
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Publication number: 20120321020Abstract: A method, an apparatus and/or a system of complementary differential input based mixer circuit is disclosed. In one aspect, the method includes inputting a single ended signal to a mixer circuit comprising a differential input circuit through a complementary differential transistor pair of the differential input circuit of the mixer circuit. The method also includes converting the signal ended signal to a differential signal through the complementary differential transistor pair of the differential input circuit to drive the mixer circuit.Type: ApplicationFiled: June 14, 2011Publication date: December 20, 2012Applicant: King Abdulaziz City Science and TechnologyInventors: MUNIR ELDESOUKI, Mohamed Jamal Deen
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Publication number: 20120056078Abstract: A method and apparatus of coordinated in-pixel light detection is provided. In one aspect, the method includes implementing an N-number of avalanche photodiodes inside a pixel circuit of a light detection circuit. The method also includes coordinating an output of the N-number of avalanche photodiodes through a counter circuit. The method further includes reducing a deadtime of the light detection circuit by a factor of āNā through the N-number of avalanche photodiodes and the counter circuit operating in concert. The method furthermore includes measuring an intensity of a light through the light detection circuit. N-number of avalanche photodiodes is in a common well of a semiconductor technology. N-number of avalanche photodiodes is fabricated on a deep submicron semiconductor technology. A fill factor of the pixel circuit improves and a deadtime reduces through fabrication of the avalanche photodiodes in a common well. Also, a photon count rate increases through reducing the deadtime.Type: ApplicationFiled: September 7, 2010Publication date: March 8, 2012Applicant: King Abdulaziz City Science and TechnologyInventors: Munir Eldesouki, Mohamed Jamal Deen, Qiyin Fang
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Publication number: 20120057059Abstract: A single photon counting image sensor and method is provided. In one aspect, the method of an image sensor includes counting through a counter circuit a number of photons detected through a photodiode when a light is incident on the photodiode. The method also includes storing in a memory circuit a time a count of the number of photons take to match a reference count of the number of photons. In another aspect, an image sensor device includes a pixel circuit. The image sensor device also includes a photodiode circuit of the pixel circuit to detect photons when a light is incident on the photodiode circuit. The image sensor device further includes a counter circuit of the pixel circuit coupled to the photodiode circuit to count a number of photons detected when a light is incident on the avalanche photo diode.Type: ApplicationFiled: September 6, 2010Publication date: March 8, 2012Applicant: King Abdulaziz City Science and TechnologyInventors: MUNIR ELDESOUKI, Mohamed Jamal Deen, Qiyin Fang
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Publication number: 20120057152Abstract: A high speed analog photon counter and method is provided. In one aspect, the method includes delivering an electric charge to a circuit of the high speed analog photon counter through a current source of the circuit. The method also includes accumulating the electric charge in a capacitor of the circuit electrically coupled to the current source. The method further includes comparing the electric charge accumulated in the capacitor of the circuit with a reference voltage through a comparator of the circuit electrically coupled to an output of the capacitor. The output of the capacitor of the circuit is coupled to an input of the comparator of the circuit, and the reference voltage is coupled to another input of the comparator of the circuit. The method furthermore includes resetting the capacitor of the circuit when the electric charge accumulated in the capacitor of the circuit matches the reference voltage.Type: ApplicationFiled: September 6, 2010Publication date: March 8, 2012Applicant: King Abdulaziz City Science and TechnologyInventors: MUNIR ELDESOUKI, Mohamed Jamal Deen, Qiyin Fang
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Publication number: 20110304758Abstract: Disclosed are a system, a method and an apparatus of high speed imaging through in-pixel storage. In one embodiment, an image sensor includes an event sensor to detect events in a process. In addition, the image sensor includes an in-pixel storage to increase an event capture rate of the events through a separation of an event capture operation from other operations of the image sensor.Type: ApplicationFiled: June 12, 2010Publication date: December 15, 2011Inventors: Munir Eldesouki, Mohamed Jamal Deen, Qiyin Fang
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Publication number: 20110266420Abstract: Disclosed are a system, a method and an apparatus of reduction of delay between subsequent capture operations of a light-detection device. In one embodiment, a light-detection circuit includes an avalanche photodiode implemented in a deep submicron CMOS technology. In addition, the light-detection circuit includes a passive quench control circuit to create an avalanche current that generates a high voltage at an output of a second inverter gate of the circuit. The light-detection circuit further includes an active quench control circuit to reduce a dead time of the circuit. The light-detection circuit also includes a reset circuit to create a low voltage at an output of the second inverter gate and to create an active reset through a PMOS transistor of the light-detection circuit.Type: ApplicationFiled: April 29, 2010Publication date: November 3, 2011Inventors: MUNIR ELDESOUKI, Mohamed Jamal Deen, Qiyin Fang