Youssef, US
Adel Amin Youssef, Milpitas, CA US
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20100020776 | Wireless network-based location approximation - The invention pertains to location approximation of devices, e.g., wireless access points and client devices in a wireless network. Location estimates may be obtained by observation/analysis of packets transmitted or received by the access point. For instance, data rate information associated with a packet is used to approximate the distance between a client device and the access point. This may be coupled with known positioning information to arrive at an approximate location for the access point. Confidence information and metrics about whether a device is an access point and the location of that device may also be determined. Accuracy of the location determination may be affected by factors including propagation and environmental factors, transmit power, antenna gain and diversity, etc. A location information database of access points may employ measurements from various devices over time. Such information may identify the location of client devices and provide location-based services to them. | 01-28-2010 |
Adel Amin Youssef, Santa Clara, CA US
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20150189464 | Disambiguation of Wireless Data Clusters Using Preclassification - Systems and methods for determining the geographic location of a user based on limited and ambiguous information available from the user's mobile electronic communication device are provided. In an embodiment, a computer-based system estimates a device's physical location based on partial identification information collected from the device such as the local area code and cell identification number, and numerous non-locational attributes. When the system determines that the collected information from the device corresponds to more than one single geographic location the system may use additional techniques of iterative disambiguation and filtering to determine a predicted location. Additional techniques may be used to increase the confidence level of the predicted location. | 07-02-2015 |
Adel Amin Abdel Azim Youssef, Santa Clara, CA US
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20130321646 | METHODS AND APPARATUS FOR USE IN MAPPING IDENTIFIED VISUAL FEATURES OF VISUAL IMAGES TO LOCATION AREAS - In one example, a computer device includes one or more processors and a camera module coupled to the one or more processors. The camera module is configured to capture visual images. The one or more processors are configured to analyze image data of a visual image for identifying whether the visual image includes a visual feature, and produce a message which includes a visual feature indication and a location indication. The visual feature indication indicates whether the visual image includes the visual feature, and the location indication indicates a location at which the visual image was captured. | 12-05-2013 |
Ahmed Youssef, Mt. Vernon, IN US
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20140121417 | RECOVERY OF MATERIALS FROM A MOTHER LIQUOR RESIDUE - 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. | 05-01-2014 |
Ahmed A. Youssef, San Diego, CA US
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20140240048 | AMPLIFIERS WITH MULTIPLE OUTPUTS AND CONFIGURABLE DEGENERATION INDUCTOR - 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. | 08-28-2014 |
20140253242 | AMPLIFIERS WITH INDUCTIVE DEGENERATION AND CONFIGURABLE GAIN AND INPUT MATCHING - 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. | 09-11-2014 |
20140266461 | SPLIT AMPLIFIERS WITH IMPROVED LINEARITY - 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. | 09-18-2014 |
20140302802 | ROUTING AND SHIELDING OF SIGNAL LINES TO IMPROVE ISOLATION - Techniques for routing and shielding signal lines to improve isolation between the signal lines are disclosed. In an exemplary design, an apparatus includes first, second, and third signal lines and a switch. The first, second, and third signal lines are configurable to carry first, second, and third signals, respectively. The switch is coupled between the second signal line and AC ground and is closed when the second signal line is not carrying the second signal. The second signal line isolates the first and third signal lines when the switch is closed. Adjacent signal lines are not active at the same time. A signal line may include positive and negative signal lines, which may have at least one cross over in order to cancel coupling between the positive and negative signal lines. | 10-09-2014 |
20140347142 | TRANSFORMER WITH INTEGRATED NOTCH FILTER - 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. | 11-27-2014 |
20140348274 | RECEIVER FRONT END FOR CARRIER AGGREGATION - 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. | 11-27-2014 |
20150035600 | AMPLIFIERS WITH CONFIGURABLE MUTUALLY-COUPLED SOURCE DEGENERATION INDUCTORS - 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. | 02-05-2015 |
Ahmed Abdel Monem Youssef, San Diego, CA US
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20150070803 | ELECTRO-STATIC DISCHARGE PROTECTION FOR INTEGRATED CIRCUITS - Techniques for improving electro-static discharge (ESD) performance in integrated circuits (IC's). In an aspect, one or more protective diodes are provided between various nodes of the IC. For example, protective diode(s) may be provided between the drain and gate of an amplifier input transistor, and/or between the drain and ground, etc. In certain exemplary embodiments, the amplifier may be a cascode amplifier. Further aspects for effectively dealing with ESD phenomena are described. | 03-12-2015 |
20150200690 | INTER CARRIER-AGGREGATION ISOLATION IN A RECEIVER - A device includes a first amplifier circuit coupled to a first transformer and a second transformer, the first transformer selectively coupled to a first shared power distribution network through a first switch, the second transformer selectively coupled to a second shared power distribution network through a second switch. | 07-16-2015 |
20150280651 | SPURIOUS SIGNAL MITIGATION FOR CARRIER AGGREGATION AMPLIFIER - A device includes an amplifier circuit comprising a plurality of amplification paths, and at least one switchable bypass capacitance coupled to an associated shared power distribution network, the at least one switchable bypass capacitance and at least one of the plurality of amplification paths responsive to a control signal configured to selectively ground the at least one switchable bypass capacitance and selectively enable the at least one of the amplification paths based on a selected operating mode. | 10-01-2015 |
20150280661 | SINGLE-INPUT MULTIPLE-OUTPUT AMPLIFIERS WITH SIMULTANEOUS MULTIPLE GAIN MODES - A device includes at least one first amplifier circuit configurable to receive and amplify an input radio frequency (RF) signal having a first carrier at a first input signal level and provide a first amplified RF signal, and at least one second amplifier circuit configurable to receive and amplify the input RF signal having a second carrier at a second input signal level and provide a second amplified RF signal, the at least one first amplifier circuit having a first input impedance, the at least one second amplifier circuit having a second input impedance. | 10-01-2015 |
20150341007 | CARRIER AGGREGATION AMPLIFIER WITH DUAL GAIN CONTROL - An apparatus includes a first amplification stage configured to amplify a first carrier signal and a second amplification stage configured to amplify a second carrier signal. The first amplification stage is direct-current (DC) coupled to the second amplification stage. First circuitry is coupled to the first amplification stage and configured to control a first gain of the first amplification stage. The first circuitry includes a first gain control transistor configured to selectively divert a first bleed current from a first output of the first amplification stage. Second circuitry is coupled to the second amplification stage and configured to control a second gain of the second amplification stage independently of the first gain. The second circuitry includes a second gain control transistor configured to selectively divert a second bleed current from a second output of the second amplification stage. | 11-26-2015 |
20150341859 | MULTI-STAGE AMPLIFIER WITH RC NETWORK - An apparatus includes a first amplifier stage configured to amplify a first carrier signal. The apparatus includes a second amplifier stage configured to amplify a second carrier signal. A resistive-capacitive (RC) network is coupled to the first amplifier stage and to the second amplifier stage. The RC network includes a resistive element coupled to a capacitive element. | 11-26-2015 |
20150346743 | BIAS TECHNIQUES AND CIRCUIT ARRANGEMENTS TO REDUCE LEAKAGE CURRENT IN A CIRCUIT - An apparatus includes an input/output (I/O) pin and an electrostatic discharge device. The electrostatic discharge device is coupled to the I/O pin and to a voltage regulator. | 12-03-2015 |
Ayman Adib Youssef, Hopkinton, MA US
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20080275791 | System for managing inventory - A system for managing customer inventory includes a plurality of customers which electronically communicate with a plurality of vendors through a server located at a centralized hub. A retrievable look-up table is utilized by the server to limit communication to only those customers and vendors that have an authorized business relationship. Each customer includes an inventory of items, the inventory level being self-monitored by the customer. When a particular product is required, the customer transmits a purchase order to the server using a handheld compute device which is then forwarded to the vendor designated in the purchase order. In addition, each vendor is capable of sending real-time information, such as product updates and purchase order reminders, to the server which is in turn sent to the handheld device for each customer with which it has an authorized relationship. | 11-06-2008 |
20090149239 | System and method of managing both instant and online lottery ticket sales - A lottery accounting system includes a system management bureau that is electronically linked with a plurality of independent lottery vendors, each vendor being preferably supplied with a handheld compute device. In use, the compute device is programmed by the system management bureau to receive selected ticket information from every active instant lottery ticket book offered for sale by the vendor and, in turn, calculate gross instant lottery ticket sales made by the vendor during a specified period. The compute device is also programmed to calculate the compiled net revenue of instant and online lottery ticket sales accrued during a particular time period and, in turn, reconcile the compiled net revenue with the actual amount of cash collected by the vendor. The resultant data can then be reviewed by authorized personnel to track cash discrepancies. | 06-11-2009 |
Biadillah Youssef, Sunnyvale, CA US
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20080208121 | Method for creating a channel through a foreign material - A method for creating a channel through a foreign material located in a body of a patient, the foreign material defining a material first surface and a substantially opposed material second surface, the channel extending through the foreign material between the material first and second surfaces, the method using an apparatus including a substantially elongated member defining a proximal end region and a substantially longitudinally opposed distal end region, the apparatus including an electrode located about the distal end region, the method comprising: introducing the distal end region into the body of the patient; positioning the electrode substantially adjacent to the material first surface; energizing the electrode with a radiofrequency current; and using the electrode energized with the radiofrequency current to deliver energy into the foreign material to create the channel. | 08-28-2008 |
Bradly Youssef, San Diego, CA US
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20110073612 | Method and Apparatus for Door Handle Hygiene - A restroom hygiene apparatus includes a plurality of generally rectangular hygiene sheets secured together along a first edge to form a hygiene pad and means for securing and suspending the hygiene pad from a door handle to enable at least one of the plurality of hygiene sheets to be removed to shield a user from direct contact with the door handle. | 03-31-2011 |
Emad Youssef, Tempe, AZ US
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20130131434 | DOSIMETRICALLY CUSTOMIZABLE BRACHYTHERAPY CARRIERS AND METHODS THEREOF IN THE TREATMENT OF TUMORS - Brachytherapy radioisotope carrier systems and methodology for providing real-time customized brachytherapy treatment to subjects with tumors difficult to control using conventional radiation therapy techniques. The invention generally relates to devices, methods and kits for providing customized radionuclide treatments, to help cure, slow progression or regrowth, or ameliorate the symptoms associated with tumors. | 05-23-2013 |
20130338423 | APPARATUS FOR LOADING DOSIMETRICALLY CUSTOMIZABLE BRACHYTHERAPY CARRIERS - A device for loading and customizing brachytherapy carriers based on the principles of optimizing a more precise and predictable dosimetry, and adaptable to the geometric challenges of a tumor bed in a real-time setting. The present invention relates to a specialized loading device designed to enable a medical team to create a radionuclide carrier for each patient and tumor reliably, reproducibly and efficiently. | 12-19-2013 |
20140275715 | DOSIMETRICALLY CUSTOMIZABLE BRACHYTHERAPY CARRIERS AND METHODS THEREOF IN THE TREATMENT OF TUMORS - Brachytherapy radioisotope carrier systems and methodology for providing real-time customized brachytherapy treatment to subjects with tumors difficult to control using conventional radiation therapy techniques. The invention generally relates to devices, methods and kits for providing customized radionuclide treatments, to help cure, slow progression or regrowth, or ameliorate the symptoms associated with tumors. | 09-18-2014 |
20140316187 | DOSIMETRICALLY CUSTOMIZABLE BRACHYTHERAPY CARRIERS AND METHODS THEREOF IN THE TREATMENT OF TUMORS - Brachytherapy radioisotope carrier systems and methodology for providing real-time customized brachytherapy treatment to subjects with tumors difficult to control using conventional radiation therapy techniques. The invention generally relates to devices, methods and kits for providing customized radionuclide treatments, to help cure, slow progression or regrowth, or ameliorate the symptoms associated with tumors. | 10-23-2014 |
20150057487 | DOSIMETRICALLY CUSTOMIZABLE BRACHYTHERAPY CARRIERS AND METHODS THEREOF IN THE TREATMENT OF TUMORS - Brachytherapy radioisotope carrier systems and methodology for providing real-time customized brachytherapy treatment to subjects with tumors difficult to control using conventional radiation therapy techniques. The invention generally relates to devices, methods and kits for providing customized radionuclide treatments, to help cure, slow progression or regrowth, or ameliorate the symptoms associated with tumors. | 02-26-2015 |
20150196778 | APPARATUS FOR LOADING DOSIMETRICALLY CUSTOMIZABLE BRACHYTHERAPY CARRIERS - A device for loading and customizing brachytherapy carriers based on the principles of optimizing a more precise and predictable dosimetry, and adaptable to the geometric challenges of a tumor bed in a real-time setting. The present invention relates to a specialized loading device designed to enable a medical team to create a radionuclide carrier for each patient and tumor reliably, reproducibly and efficiently. | 07-16-2015 |
Emad Youssef, Peoria, AZ US
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20150321024 | DOSIMETRICALLY CUSTOMIZABLE BRACHYTHERAPY CARRIERS AND METHODS THEREOF IN THE TREATMENT OF TUMORS - Brachytherapy radioisotope carrier systems and methodology for providing real-time customized brachytherapy treatment to subjects with tumors difficult to control using conventional radiation therapy techniques. The invention generally relates to devices, methods and kits for providing customized radionuclide treatments, to help cure, slow progression or regrowth, or ameliorate the symptoms associated with tumors. | 11-12-2015 |
George Youssef, Newhall, CA US
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20110042971 | Electronic Door Chain - An electronic door chain which has a receiving hole drilled into the slotted keeper for a electric solenoid shaft to be inserted into which will prevent sliding of the chain out of the groove unless the solenoid is released by entering a pre-programmed access number on the access keypad in which case the solenoid shaft is retracted in response to the access keypad output. Concurrently, the solenoid shaft will retract to the open position and a short beep will be generated to announce to anyone within hearing distance that the electronic door chain is disengaged. | 02-24-2011 |
George H. Youssef, La Mesa, CA US
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20160037851 | MATERIAL FOR MITIGATING IMPACT FORCES WITH COLLISION DURATIONS IN NANOSECONDS TO MILLISECONDS RANGE - Material for mitigating impact forces with collision durations in nanoseconds to milliseconds range is disclosed. According to one embodiment, an object wearable on or against a human body comprises one of a layer of polyurea material and plug of polyurea material, and the layer of polyurea material or plug of polyurea material is positioned within the object or on the object between the human body and an outer structure of the object. | 02-11-2016 |
George H. Youssef, Newhail, CA US
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20130312287 | MATERIAL FOR MITIGATING IMPACT FORCES WITH COLLISION DURATIONS IN NANOSECONDS TO MILLISECONDS RANGE - Material for mitigating impact forces with collision durations in nanoseconds to milliseconds range is disclosed. According to one embodiment, an object wearable on or against a human body comprises one of a layer of polyurea material and plug of polyurea material, and the layer of polyurea material or plug of polyurea material is positioned within the object or on the object between the human body and an outer structure of the object. | 11-28-2013 |
Jim Youssef, Durango, CO US
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20090012620 | Implantable Cervical Fusion Device - The present invention relates to an implantable intervertebral device that is made of a bone body substantially conforming in size and shape with the enplates of adjacent vertebrae. The bone body has a top surface, a bottom surface, and, a cavity, which extends from the top surface to the bottom surface. The cavity is filled with osteoconductive or osteoinductive graft material. | 01-08-2009 |
20130060288 | METHODS AND INSTRUMENTATION FOR ORTHOPEDIC SURGERY - Surgical instruments and methods aimed at the proper placement and installation of textile-based orthopedic implants. More specifically, the surgical instruments include a flexible template, insertion instrument and multi-pronged awl. The flexible template may be formed of a combination of rigid and flexible materials and is deformable to match the contour of the target anatomy for subsequent placement of a textile-based orthopedic implant. The insertion instrument has a handle and a template end used for holding the flexible template and textile-based implant. The template end has one or apertures with hollow cylindrical extensions for holding the flexible template or textile-based implant and one or more cutout regions for better visualization and affixation of fixation screws. An awl is also provided with one or more prongs to initiate channels for the fixation screws. A method of implanting a textile-based orthopedic implant is also disclosed. | 03-07-2013 |
Jim A. Youssef, Durango, CO US
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20080234824 | Interspinous dynamic stabilization implant and method of implanting - Devices and methods for treating spinal disorders and associated discomfort therefrom. In one embodiment, an interspinous implant device is configured for distracting an adjacent pair of spinous processes while permitting relative flexion, lateral bending and side rotation motions between the vertebrae joined to the adjacent pair of spinous processes. A method of treating spinal disorders and associated discomfort therefrom, includes inserting an interspinous device between a pair of adjacent spinous processes such that a superior portion of the device contacts an inferior surface of the relatively superior spinous process of the pair, and an inferior portion of the of the device contacts a superior surface of the relatively inferior spinous process of the pair; and distracting the superior and inferior portions, relative to one another, thereby distracting the spinous processes, whereby vertebrae integral with the spinous processes retain capability of flexion, lateral bending and side rotation motions, relative to one another, after the distraction has been performed. | 09-25-2008 |
20090264934 | Bone plate system configurable as static or dynamic implant - Bone plate systems and methods for implanting. A bone plate system includes a bone plate having a first surface, a second, bone contacting surface opposed to the first surface, and at least one aperture extending through the first and second surfaces. The system includes a bone screw having a threaded shank along a distal end portion thereof, the threaded shank configured to pass through the aperture. A dynamic member is configured to fit between portions of the screw and the bone plate and allow movement of the dynamic member and the screw relative to the bone plate in a first direction, while preventing movement of the dynamic member relative to the bone plate in a direction opposite to the first direction. | 10-22-2009 |
20110313467 | Interspinous Dynamic Stabilization Implant and Method of Implanting - Devices and methods for treating spinal disorders and associated discomfort therefrom. In one embodiment, an interspinous implant device is configured for distracting an adjacent pair of spinous processes while permitting relative flexion, lateral bending and side rotation motions between the vertebrae joined to the adjacent pair of spinous processes. A method of treating spinal disorders and associated discomfort therefrom, includes inserting an interspinous device between a pair of adjacent spinous processes such that a superior portion of the device contacts an inferior surface of the relatively superior spinous process of the pair, and an inferior portion of the of the device contacts a superior surface of the relatively inferior spinous process of the pair; and distracting the superior and inferior portions, relative to one another, thereby distracting the spinous processes, whereby vertebrae integral with the spinous processes retain capability of flexion, lateral bending and side rotation motions, relative to one another, after the distraction has been performed. | 12-22-2011 |
John Youssef, Bethesda, MD US
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20130177155 | Method and System for Generating Normal Distributed Random Variables Based On Cryptographic Function - A method of generating normally distributed random variables for communication channel simulation comprising generating, by a processor, a stream of uniformly distributed random variables using a cryptographic algorithm, applying a mathematical transform to the uniformly distributed random variables using the processor to create a signal comprised of normally distributed random variables, adjusting a mean and variance of the signal using the processor, and outputting, by the processor, an output noise signal. | 07-11-2013 |
John Youssef, Frederick, MD US
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20140080435 | AUTOMATIC GAIN CONTROL ALGORITHM FOR RECEIVER ARCHITECTURE - A logarithmic (LOG) based adaptive algorithm to track RF power received at a receiver is provided. The method includes: receiving, by a variable gain amplifier (VGA) having exponential gain characteristics, an input signal; and providing log-based gain control of the input signal by determining a power of the input signal, and generating, according to the determined power, a voltage control signal using a log-based function, wherein the VGA amplifies the input signal based on the voltage control signal. | 03-20-2014 |
John Youssef, Tempe, AZ US
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20160036585 | Method and System for Simulating a Noisy Communications Channel Based On a Cryptographic Function Implemented in FPGA or ASIC - A method of simulating communication channel noise comprising generating, by a FPGA or ASIC, a stream of uniformly distributed random variables using a cryptographic algorithm, applying a mathematical transform to the uniformly distributed random variables using the FPGA or ASIC to create a signal comprised of normally distributed random variables, adjusting a mean and variance of the signal using the FPGA or ASIC, outputting, by the FPGA or ASIC, an output noise signal, adding, by the FPGA or ASIC, I and Q samples of the output noise signal to I and Q symbols of a data carrier signal at complex baseband, modulating, using a modulator, the summed I and Q symbols to create a composite carrier signal, and upconverting using an upconverter, the composite carrier signal for transmission across a telecommunications channel to simulate a noisy telecommunications channel. | 02-04-2016 |
Michael Youssef, Newport Coast, CA US
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20110057731 | Feedback-Based Linearization of Voltage Controlled Oscillator - Embodiments of the present invention enable a feedback-based VCO linearization technique. Embodiments include a frequency locked loop formed by feeding back a VCO's output into the VCO's input in negative phase by means of a frequency-to-voltage (F/V) converter. Embodiments enable constant VCO gain over a wide input tuning range and across PVT variations. Further, embodiments can be nested within a PLL, for example, with negligible area and power consumption overhead. | 03-10-2011 |
20120068743 | Feedback-Based Linearization of Voltage Controlled Oscillator - Embodiments of the present invention enable a feedback-based VCO linearization technique. Embodiments include a frequency locked loop formed by feeding back a VCO's output into the VCO's input in negative phase by means of a frequency-to-voltage (F/V) converter. Embodiments enable constant VCO gain over a wide input tuning range and across PVT variations. Further, embodiments can be nested within a PLL, for example, with negligible area and power consumption overhead. | 03-22-2012 |
Mohamed Youssef, Marion, IA US
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20140342755 | GEO-REFERENCE BASED POSITIONING OF A MOBILE DEVICE - A method of determining a location of a mobile device includes: detecting, at the mobile device, at least one Radio Frequency transmitter; receiving information associated with a number of Radio Frequency transmitters located within a geographical, area, the number of Radio Frequency transmitters being a subset of all Radio Frequency transmitters located within the geographical area, the information being decodable to provide global locations and identifiers of the number of Radio Frequency transmitters; comparing an identifier associated with the at least one detected Radio Frequency transmitter with the global locations and identifiers of the number of Radio Frequency transmitters; and determining the location of the mobile device within the geographical area; wherein the information is received in a reduced format. | 11-20-2014 |
20140349673 | GEO-PROXIMATE DEVICES-COUPLING SYSTEM AND METHOD - Disclosed system and method enable a location-unaware device to know its approximate location by wirelessly near-field coupling it to a geo-proximate location-aware device such as a Global Navigation Satellite System—(GNSS)-enabled mobile phone. The geo-location data are conveyed in accordance with a predefined signaling protocol. Request and response mechanisms within the devices take the form of predefined data packets that convey geo-location and the devices' unique identification (ID) information. | 11-27-2014 |
20150032371 | METHOD AND APPARATUS FOR GUIDED ACQUISITION AND TRACKING IN GLOBAL NAVIGATION SATELLITE SYSTEM RECEIVERS - Methods, systems, and apparatuses for a portable device capable of receiving satellite navigational system signals to retrieve visibility mask information corresponding to the portable device's current location and/or trajectory are described. | 01-29-2015 |
20150124856 | METHOD AND APPARATUS FOR FRAME SYNCHRONIZATION IN A POSITIONING SYSTEM - A method for soft frame synchronization in a navigational receiver is provided. A distance between bits of a sync pattern received by the navigational receiver and a known sync pattern is computed. A probability of detection value for the received sync pattern based on the distance is assigned. A confidence level for the received sync pattern using the probability of detection value is computed. The confidence level is compared with a confidence threshold. If the confidence level is greater than or equal to the confidence threshold, the confidence level of the received sync pattern is updated to generate a credibility of the sync pattern. The credibility of the received sync pattern is compared with a predetermined credibility value and, if the credibility of the received sync pattern is greater than or equal to the predetermined credibility value, synchronization of the navigational receiver is performed using the received sync pattern. | 05-07-2015 |
Mohamed Youssef, Paso Robles, CA US
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20150345287 | DOWNHOLE MWD SIGNAL ENHANCEMENT, TRACKING, AND DECODING - A method for transmitting data from a MWD system at the BHA of a drill string may include transmitting the data in a MWD signal from the MWD system. The MWD signal may be modulated at a position closer to the surface onto a mud pulse modulated signal. The mud pulse modulated signal may be generated by a downhole friction reducing device. The downhole friction reducing device may include a mud motor. The mud motor may create pressure pulses based on its speed of rotation. The downhole friction reducing device may include a modulating valve. The modulating valve may be electromechanically or mechanically operated. The modulated signal may be detected at the surface by a receiver using one or more pressure or flow sensors. The receiver may use one or more harmonics of the modulated signal to receive the data. | 12-03-2015 |
Mohamed Abdelmoneim Youssef, Cary, NC US
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20150361630 | AUTOMATIC WATER CONTROL SYSTEM FOR OPEN DITCH DRAINAGE - An automatic water control system for open ditch drainage includes a drainage control apparatus that is designed to be disposed in a drainage ditch and to control the water level in the drainage ditch, as well as the water table level in the field. | 12-17-2015 |
Moustafa Youssef, Conway, AR US
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20150281910 | UNSUPERVISED INDOOR LOCALIZATION AND HEADING DIRECTIONS ESTIMATION - Systems and methods for unsupervised indoor localization are provided. Sensor data obtained from a device carried by a user can be used to simultaneously estimate the indoor location of a user and identify landmarks within the indoor environment based on their signatures. The landmarks can be used to reset the location estimate of the user, and the location estimate of the user can be used to improve the learned location of the landmarks. This recursive process leads to excellent accuracy in indoor localization. Systems and methods for estimating the heading direction of a user are also provided. Sensor data obtained from the user can be used to analyze the forces acting on the user in order to give an accurate heading direction estimate. | 10-01-2015 |
Moustafa Amin Youssef, Greenbelt, MD US
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20130202111 | WIRELESS SECURITY PROTOCOL - A method of encryption and decryption applied to a transmitted plaintext message in a communication network containing multiple subscriber nodes is provided. The method comprises the steps of: processing an Integrity check value (ICV); using a private key at the first subscriber node; providing a random initialization vector (W) executing a first operation on the random IV to obtain a sum IV; using the sum IV to process an encryption on the plaintext to obtain the ciphertext; transmitting the ciphertext to the second subscriber node wherein the second node receives the ciphertext; identifies the IV; utilizes the private key and the IV to process the decryption of the ciphertext to obtain the plaintext; generates a feedback message, the feedback message is then used to generate future sum IVs. | 08-08-2013 |
Natalie Youssef, New York, NY US
Patent application number | Description | Published |
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20150048081 | CLOTHES CATCHER - The present invention is directed to a clothes catcher for facilitating movement of clothing and other goods during the laundering process. A user can transfer clothes or other goods between the clothes catcher and the washer or dryer much more easily than present day loading or unloading. The clothes catcher of the present invention includes a means for attaching to the opening created by an open door to a washer or dryer and also includes a basket. | 02-19-2015 |
Ramey Youssef, Horsham, PA US
Patent application number | Description | Published |
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20140242731 | SYSTEM AND METHOD FOR PERFORMING A WET ETCHING PROCESS - A system and method for performing a wet etching process is disclosed. The system includes multiple processing stations accessible by a transfer device, including a measuring station to optically measure the thickness of a substrate, a controller to calculate an etch recipe for the substrate, in real time, and cause a single wafer wet etching station to etch the substrate according to the recipe. In addition, the system can measure the after etch thickness and calculate etch recipes, in real time, as a function of the final measurements of a previous substrate. The system can also include an in situ end point detection device for detecting the TSV reveal point while etching TSVs substrates. The system provides an automated solution to adjust etch recipe parameters in real time according to feedback concerning previously etched wafers and precisely control the TSV reveal height and etch duration using end point detection. | 08-28-2014 |
20140377951 | Apparatus and Method for Removing Challenging Polymer Films and Structures from Semiconductor Wafers - The present apparatus and method are configured to remove challenging polymer films and structures from semiconductor wafers. This technique involves the use of a double soak and spray sequence with unique parameters and can be varied depending upon the application. The initial immersion step is used to initiate the swelling and dissolution of the polymer. The first spray step may include a high pressure needle to pierce through the top layer allowing more solvent to penetrate in the subsequent soak process. The second immersion can then penetrate further and faster allowing substantial penetration of the polymer by the solvent. The final high pressure spray proceeds to remove all of the polymer coating. The process ends with a final rinse and dry sequence. | 12-25-2014 |
Tim Youssef, New York, NY US
Patent application number | Description | Published |
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20150048081 | CLOTHES CATCHER - The present invention is directed to a clothes catcher for facilitating movement of clothing and other goods during the laundering process. A user can transfer clothes or other goods between the clothes catcher and the washer or dryer much more easily than present day loading or unloading. The clothes catcher of the present invention includes a means for attaching to the opening created by an open door to a washer or dryer and also includes a basket. | 02-19-2015 |
Tom Youssef, Frisco, TX US
Patent application number | Description | Published |
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20130063195 | DIGITAL INPUT BUFFER - A digital input buffer and method. The input buffer includes a voltage regulator configured for operating in weak inversion and outputting a regulated potential, an inverter having as its power source the regulated potential and configured for receiving an input signal, a first latch having its input coupled to the inverter input, and a second latch having its input coupled to the inverter's output, having its output coupled to the first latch's enable input, and having its enable input coupled to the first latch's output. A first latch output signal from the first latch output and a second latch output signal from the second latch output enable switching the first latch output signal to the complement of the input signal and switching the second latch output signal to that of the input signal. | 03-14-2013 |
20150323944 | CURRENT MODULATION CIRCUIT - A modulated digital input signal is passed through a conditioning circuit to generate a first input signal. An error amplifier circuit receives the first input signal and a second input signal, and controls the operation of a MOS transistor to generate an output signal that is current modulated. The output signal is sensed to generate a feedback signal. A switching circuit selectively applies the feedback signal as the second input signal in response to a transition of the modulated digital input signal from a first logic state to a second logic state. The switching circuit alternatively selectively applies a fixed reference signal as the second input signal to the error amplifier in response to a transition of the modulated digital input signal from the second logic state to the first logic state. | 11-12-2015 |