Patents by Inventor Ahmed A. Youssef
Ahmed A. Youssef 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: 10567063Abstract: Systems and methods for providing phase shifting in antenna arrays, such as phased antenna arrays of 5G cellular technology, are disclosed. In one aspect, an example phase shift module may include a phase shifter and a frequency multiplier. The phase shifter is configured to receive an LOcal oscillator (LO) signal and output a signal that is phase-shifted by a desired phase shift with respect to the LO signal. The frequency multiplier may be an enhanced frequency multiplier, configured to use not only the phase-shifted signal but also an inverted version of the phase-shifted signal to generate a frequency-multiplied signal having a frequency that is a multiple of the LO signal frequency. In another aspect, an example phase shift module may be configured to apply to an LO signal a phase shift that takes into consideration variations of phase shift over temperature.Type: GrantFiled: March 20, 2019Date of Patent: February 18, 2020Assignee: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANYInventors: Hany Gamal Eldin Mohamed Bakeer, Ahmed Mohamed Attia Zamzam, Mohamed Ahmed Youssef Abdalla, Ahmed I. Khalil
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Publication number: 20200028477Abstract: Aspects of this disclosure relate to an adaptive biasing circuit for a power amplifier. The adaptive biasing circuit can include a shunt resistor arrangement and/or a floating gate linearizer arrangement.Type: ApplicationFiled: July 23, 2018Publication date: January 23, 2020Inventors: Mohamed Moussa Ramadan Esmael, Mohamed Ahmed Youssef Abdalla
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Patent number: 10525130Abstract: The present invention provides stable pharmaceutical antibody formulations, including liquid drug product formulations and lyophilized drug product formulations, comprising an IgG4 binding agent and a citrate buffer, wherein the pH of the formulation is at or below both pH 6 and the pI of the binding agent. The formulations can be used in the treatment of chronic bowel diseases or rheumatoid arthritis.Type: GrantFiled: January 26, 2017Date of Patent: January 7, 2020Assignee: SanofiInventors: Julia Schnieders, Dirk Usener, Sabrina Ruggeberg, Ahmed Youssef, Martina Kirsch, Annika Hagendorf
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Publication number: 20190267707Abstract: Aspects of this disclosure relate to an antenna array system and method of calibration using one or more probes disposed equidistant between antenna elements. In certain embodiments, calibration is performed between a probe and antenna elements, between a plurality of antenna elements, and/or between antenna elements on different antenna arrays.Type: ApplicationFiled: February 23, 2018Publication date: August 29, 2019Inventors: Ahmed I. Khalil, Mohamed Ahmed Youssef Abdalla, Islam A. Eshrah, Mohamed Mobarak
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Publication number: 20190255173Abstract: High concentration antibody formulations capable of stable long-term storage are disclosed.Type: ApplicationFiled: July 5, 2017Publication date: August 22, 2019Inventors: Donny FRANCIS, Ahmed YOUSSEF, Stefaniya KORUEVA, Martina KIRSCH
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Publication number: 20190162555Abstract: The invention relates to a display for 3D aircraft visualisation and flight path features. The display system is for use on the flight deck of an aircraft and comprises a display operable for graphical display of data, and a processor operatively coupled to the display and configured to receive terrain data from at least a terrain data base, flight plan data from a source of navigational data, and aircraft position data from one or more aircraft sensors. The processor is configured to operate the display to display a representation of the flight plan on the display screen, display a representation of the terrain proximate the flight plan representation, and display a representation of the aircraft relative to the flight plan and the terrain.Type: ApplicationFiled: October 6, 2016Publication date: May 30, 2019Inventor: Ahmed YOUSSEF
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Publication number: 20180040649Abstract: Methods and devices that monolithically integrate thin film elements/devices, e.g., environmental sensors, batteries and biosensors, with high performance integrated circuits, i.e., integrated circuits formed in a high quality device layer. Preferred embodiments further monolithically integrate a solar cell array. Preferred embodiments provide pin-size and integrated solar powered wearable electronic, ionic, molecular, radiation, etc. sensors and circuits.Type: ApplicationFiled: March 10, 2016Publication date: February 8, 2018Inventors: Shadi A. Dayeh, Yun Goo Ro, Namseok Park, Atsunori Tanaka, Siarhei Vishniakou, Ahmed Youssef, James Buckwalter, Cooper Levy
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Publication number: 20170232104Abstract: The present invention provides stable pharmaceutical antibody formulations, including liquid drug product formulations and lyophilized drug product formulations, comprising an IgG4 binding agent and a citrate buffer, wherein the pH of the formulation is at or below both pH 6 and the pI of the binding agent. The formulations can be used in the treatment of chronic bowel diseases or rheumatoid arthritis.Type: ApplicationFiled: January 26, 2017Publication date: August 17, 2017Inventors: Julia Schnieders, Dirk Usener, Sabrina Ruggeberg, Ahmed Youssef, Martina Kirsch, Annika Hagendorf
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Patent number: 9732022Abstract: A process for recovery of materials from a mother liquor residue comprising cracking a mother liquor residue with an aromatic sulfonic acid catalyst to form a cracked product mixture and separating phenol from the cracked product mixture wherein the mother liquor residue results from distillation of a mother liquor resulting from bisphenol A synthesis and isolation.Type: GrantFiled: October 28, 2013Date of Patent: August 15, 2017Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Ahmed Youssef, Mohan Khadilkar, Martin Oyevaar
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Patent number: 9592289Abstract: The present invention provides stable pharmaceutical antibody formulations, including liquid drug product formulations and lyophilized drug product formulations, comprising an IgG4 binding agent and a citrate buffer, wherein the pH of the formulation is at or below both pH 6 and the pI of the binding agent. The formulations can be used in the treatment of chronic bowel diseases or rheumatoid arthritis.Type: GrantFiled: March 26, 2013Date of Patent: March 14, 2017Assignee: SANOFIInventors: Julia Schnieders, Dirk Usener, Sabrina Ruggeberg, Ahmed Youssef, Martina Kirsch, Annika Hagendorf
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Publication number: 20170044313Abstract: Systems and methods for treatment of an effluent stream are disclosed. In an aspect, a system can comprise an input configured to receive a brine solution, a purification component in communication with the input and configured to receive the brine solution therefrom, the purification component comprising activated carbon, wherein the brine solution is caused to pass through the activated carbon to produce a purified solution, and an output in communication with the purification component to receive the purified solution therefrom.Type: ApplicationFiled: April 29, 2015Publication date: February 16, 2017Inventor: Ahmed A. YOUSSEF
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Patent number: 9350310Abstract: Techniques for providing a receiver front end supporting carrier aggregation with gain alignment and improved matching across modes. In an aspect, auxiliary circuitry is configurable to selectively enable or disable mutual coupling between a source degeneration inductor of an LNA input transistor and an auxiliary inductor. A negative turns ratio coupling is provided between the inductors, such that the effective inductance of the source degeneration inductor is lowered when mutually coupled to the auxiliary inductor. In a non-carrier aggregation (non-CA) mode, the auxiliary inductor is disabled, while in a carrier aggregation (CA) mode, the auxiliary inductor is enabled. In this manner, using a single transistor, gain alignment across non-CA and CA modes is achieved. Furthermore, matching is preserved across non-CA and CA modes using a single external matching component.Type: GrantFiled: May 24, 2013Date of Patent: May 24, 2016Assignee: Qualcomm IncorporatedInventors: Ahmed A Youssef, Li-Chung Chang
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Patent number: 9166731Abstract: Techniques for providing low-cost and effective jammer rejection for a radio receiver. In an aspect, a notch filter is provided between a transformer and a differential mixer in the receiver. The notch frequency of the notch filter may be selected to correspond to an expected jammer frequency to effectively attenuate the jammer signal prior to down-conversion mixing by the mixer. The notch filter may be implemented using various techniques, e.g., an L-C combination having adjustable capacitance, and/or elliptic or Chebyshev filters.Type: GrantFiled: May 23, 2013Date of Patent: October 20, 2015Assignee: Qualcomm IncorporatedInventors: Li-Chung Chang, Ehab A Abdel Ghany, Ahmed A Youssef
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Patent number: 9154087Abstract: Amplifiers with configurable mutually-coupled source degeneration inductors are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a gain transistor and a plurality of inductors, which may implement an amplifier. The gain transistor receives an input signal and provides an amplified signal. The plurality of inductors are mutually coupled, are coupled to the gain transistor, and provide a programmable source degeneration inductance for the gain transistor. The inductors may have a positive coupling coefficient and may provide a larger source degeneration inductance. Alternatively, the inductors may have a negative coupling coefficient and may provide a smaller source degeneration inductance.Type: GrantFiled: August 1, 2013Date of Patent: October 6, 2015Assignee: Qualcomm IncorporatedInventors: Zhang Jin, Ahmed A. Youssef, Li-Chung Chang
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Patent number: 9106185Abstract: Amplifiers with inductive degeneration and configurable gain and input matching are disclosed. In an exemplary design, an apparatus includes a gain transistor, an inductor, and an input matching circuit for an amplifier. The gain transistor has a variable gain determined based on its bias current. The inductor is coupled between the gain transistor and circuit ground. The input matching circuit is selectively coupled to the gain transistor based on the variable gain of the gain transistor. For example, the input matching circuit may be coupled to the gain transistor in a low-gain mode and decoupled from the gain transistor in the high-gain mode. In an exemplary design, the input matching circuit includes a resistor, a capacitor, and a second transistor coupled in series. The resistor is used for input matching of the amplifier. The second transistor couples or decouples the resistor to or from the gain transistor.Type: GrantFiled: March 11, 2013Date of Patent: August 11, 2015Assignee: Qualcomm IncorporatedInventors: Ahmed A Youssef, Sherif Abdelhalem, Ehab A Abdel Ghany, Li-Chung Chang
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Patent number: 9059665Abstract: Multi-output amplifiers with configurable source degeneration inductance and having good performance are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a gain transistor and a configurable degeneration inductor for an amplifier. The gain transistor receives an input signal and provides an amplified signal. The amplifier provides a single output signal in a first operating mode or a plurality of output signals in a second operating mode. The configurable degeneration inductor is coupled to the gain transistor and provides a first source degeneration inductance in the first operating mode or a second source degeneration inductance in the second operating mode. The second source degeneration inductance is less than the first source degeneration inductance and may be dependent on the number of output signals generated in the second operating mode.Type: GrantFiled: February 22, 2013Date of Patent: June 16, 2015Assignee: Qualcomm IncorporatedInventors: Ahmed A. Youssef, Li-Chung Chang
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Patent number: 9035697Abstract: Split amplifiers with configurable gain and linearization circuitry are disclosed. In an exemplary design, an apparatus includes first and second amplifier circuits and a linearization circuit, which may be part of an amplifier. The first and second amplifier circuits are coupled in parallel and to an amplifier input. The linearization circuit is also coupled to the amplifier input. The first and second amplifier circuits are enabled in a high-gain mode. One of the first and second amplifier circuits is enabled in a low-gain mode. The linearization circuit is enabled in the second mode and disabled in the first mode. The amplifier is split into multiple sections. Each section includes an amplifier circuit and is a fraction of the amplifier. High linearly may be obtained using one amplifier circuit and the linearization circuit in the low-gain mode.Type: GrantFiled: March 15, 2013Date of Patent: May 19, 2015Assignee: Qualcomm IncorporatedInventors: Ahmed A Youssef, Li-Chung Chang
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Publication number: 20150035600Abstract: Amplifiers with configurable mutually-coupled source degeneration inductors are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a gain transistor and a plurality of inductors, which may implement an amplifier. The gain transistor receives an input signal and provides an amplified signal. The plurality of inductors are mutually coupled, are coupled to the gain transistor, and provide a programmable source degeneration inductance for the gain transistor. The inductors may have a positive coupling coefficient and may provide a larger source degeneration inductance. Alternatively, the inductors may have a negative coupling coefficient and may provide a smaller source degeneration inductance.Type: ApplicationFiled: August 1, 2013Publication date: February 5, 2015Applicant: QUALCOMM IncorporatedInventors: Zhang Jin, Ahmed A. Youssef, Li-Chung Chang
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Publication number: 20140348274Abstract: Techniques for providing a receiver front end supporting carrier aggregation with gain alignment and improved matching across modes. In an aspect, auxiliary circuitry is configurable to selectively enable or disable mutual coupling between a source degeneration inductor of an LNA input transistor and an auxiliary inductor. A negative turns ratio coupling is provided between the inductors, such that the effective inductance of the source degeneration inductor is lowered when mutually coupled to the auxiliary inductor. In a non-carrier aggregation (non-CA) mode, the auxiliary inductor is disabled, while in a carrier aggregation (CA) mode, the auxiliary inductor is enabled. In this manner, using a single transistor, gain alignment across non-CA and CA modes is achieved. Furthermore, matching is preserved across non-CA and CA modes using a single external matching component.Type: ApplicationFiled: May 24, 2013Publication date: November 27, 2014Applicant: QUALCOMM INCORPORATEDInventors: Ahmed A Youssef, Li-Chung Chang
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Patent number: D846932Type: GrantFiled: November 22, 2017Date of Patent: April 30, 2019Assignee: Office Depot, Inc.Inventors: Johannes Lampela, Andre de Salis, Tim Chuang, Jirawat Jeamvigite, Alexandra McGill, Mike Trump, Ross Carmichael, Ahmed Youssef