Patents by Inventor Mohamed Mostafa

Mohamed Mostafa 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).

  • Publication number: 20140308361
    Abstract: The composition for management of periodontal diseases includes a gel matrix having a polymer system and a plurality of microspheres dispersed in the polymer system. The polymer system contains about one-half a dose of medicament, while the micro spheres contain the remainder. Upon administration of the composition into the periodontal cavity, the medicament in the polymer system provides an initial therapeutic benefit, while the remainder of the medication is released over time via degradation of the microspheres. This biphasic pattern of medicament delivery provides increased efficacy of the medicament through sustained delivery of the same.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 16, 2014
    Inventors: NOHA MOHAMED ZAKI RAYAD, Ibrahim Maghrabi, Mohamed Mostafa Hafez Mahmoud
  • Publication number: 20140310358
    Abstract: A context-driven publication option is received over a network at an adaptive publish subscribe broker from a publishing network device. The context driven publication options are presented over the network to a subscribing network device. A selection of a context-driven subscription is received over the network at the adaptive publish/subscribe broker from the subscribing network device. A publication configured for network management and operations is received at the adaptive publish/subscribe broker. Publications are filtered at the adaptive publish/subscribe broker for the subscribing network device according to the selection of the context-driven subscription.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 16, 2014
    Applicant: Cisco Technology, Inc.
    Inventors: Carlos M. Pignataro, Joseph M. Clarke, Rajesh Kumar, Mohammed Baseer Khan, Michel Khouderchah, Mohamed Mostafa
  • Publication number: 20140266106
    Abstract: A novel architecture and method to maintain stability of a low drop-out (LDO)/load switch linear voltage regulator (LVR). The architecture and method also support optionally determining, during a power-up phase and by a capacitance sensing circuit, an estimated output capacitance value at an output node of the LDO/load switch LVR, and adjusting, based on the estimated output capacitance value, an adaptive RC network in the LDO/load switch LVR, wherein the adaptive RC network produces an adaptive zero in a feedback network transfer function of the LDO/load switch LVR, wherein the adaptive zero reduces an effect of a non-dominant pole in the open loop transfer function of the LDO/load switch LVR, and wherein a frequency of the adaptive zero is inversely proportional to the estimated output capacitance value.
    Type: Application
    Filed: June 12, 2013
    Publication date: September 18, 2014
    Inventors: Mohamed Ahmed Mohamed El-Nozahi, Mohamed Mostafa Saber Aboudina, Sameh Assem Ibrahim, Faisal Abdellatif Elseddeek Ali Hussien, Moises Emanuel Robinson
  • Publication number: 20140266104
    Abstract: A method to maintain stability of a low drop-out (LDO)/load switch linear voltage regulator (LVR). The method includes determining, during a power-up phase and by a capacitance sensing circuit, an estimated output capacitance value at an output node of the LDO/load switch LVR, and adjusting, based on the estimated output capacitance value, an adaptive RC network in the LDO/load switch LVR, wherein the adaptive RC network produces an adaptive zero in a feedback network transfer function of the LDO/load switch LVR, wherein the adaptive zero reduces an effect of a non-dominant pole in the open loop transfer function of the LDO/load switch LVR, and wherein a frequency of the adaptive zero is inversely proportional to the estimated output capacitance value.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: VIDATRONIC, INC.
    Inventors: Mohamed Ahmed Mohamed El-Nozahi, Mohamed Mostafa Saber Aboudina, Sameh Assem Ibrahim, Faisal Abdellatif Elseddeek Ali Hussien, Moises Emanuel Robinson
  • Publication number: 20140253072
    Abstract: A soft-start/soft-stop (SS) controller for a voltage regulator. The SS controller includes a power up/down detector configured to perform at least one selected from a group consisting of detecting a power on condition of the voltage regulator to determine a start-up time period and detecting a power off condition of the voltage regulator to determine a shut-down time period, and a ramped reference voltage signal generator configured to perform at least one selected from a group consisting of increasing a voltage level of a ramped reference voltage signal using a pre-determined ramp-up rate during the start-up time period and decreasing the voltage level of the ramped reference voltage signal using a pre-determined ramp-down rate during the shut-down time period, wherein the ramped reference voltage signal is supplied to the voltage regulator for controlling an output voltage level of the voltage regulator.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 11, 2014
    Applicant: VIDATRONIC, INC.
    Inventors: Faisal Abdellatif Elseddeek Ali Hussien, Mohamed Mostafa Saber Aboudina, Moises E. Robinson
  • Publication number: 20140242554
    Abstract: System for enabling a visually impaired or blind person to use an input device having at least one key, comprising: at least one tactile sensor array, in particular a pressure sensor array, attachable to a fingertip of a visually impaired or blind person for acquiring a pressure distribution image of a key slightly touched by a finger of said person when attached to said finger, a pressure distribution image processing and character recognition unit that is connected to said tactile sensor array for processing said pressure distribution image and for recognizing the key label of the touched key and an audio output device that is connected to said unit for outputting and acoustic reproduction of said key label.
    Type: Application
    Filed: January 30, 2014
    Publication date: August 28, 2014
    Applicant: KING SAUD UNIVERSITY
    Inventor: Abdelhamid Mohamed MOSTAFA
  • Patent number: 8812560
    Abstract: The present disclosure includes techniques for storing indexed values that may increase computing performance. In one example, a method includes receiving a request to store an input value in a data structure. The method also includes determining the input value is not represented by an index value of the first group of index values, generating an index value that represents the input value, and determining the generated index value is not included in the first group of representations. The method also includes generating a second group of index values wherein a first size of index values of the first group is different than a second size of index values of the second group. The method also includes modifying a storage capacity of the data structure to store the index values of the second group of the second size and storing the second group of index values in the data structure.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: August 19, 2014
    Assignee: International Business Machines Corporation
    Inventors: Mohammed Mostafa, Graham A. Watts
  • Patent number: 8793673
    Abstract: An illustrative embodiment provides a computer-implemented process for algorithm complexity identification through inter-procedural data flow analysis receives a call graph to form a set of received nodes in a static analysis framework, identifies a parent node in the set of received nodes to form an identified parent, traverses the call graph from the identified parent node to a node to identify a function within the node to form an identified function. Each identified function is analyzed to form a complexity value in a set of complexity values. Responsive to a determination that node analysis is complete, and responsive to a determination that path analysis is complete, determines whether path analysis for the identified parent is complete. Responsive to a determination that path analysis for the identified parent is complete, sum the complexity values in the set of complexity values for the identified parent and return the complexity value for the identified parent to a requester.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: July 29, 2014
    Assignee: International Business Machines Corporation
    Inventors: Steven J. Gutz, Mohammed Mostafa, Joshua P. Tessier
  • Publication number: 20140194116
    Abstract: A method and system are provided in which a device comprising a first or main phase locked loop (PLL) and a second or reference PLL, is operable to communicate utilizing a first and a second receiving antenna. The first PLL may generate a first signal based on a reference signal generated by the second PLL. A second signal may also be generated based on the reference signal. Data associated with a first radio access technology (RAT) may be received via the first receiving antenna utilizing the generated first signal. The first RAT or another RAT may be scanned via the second receiving antenna utilizing the generated second signal. The scan via the second receiving antenna may be performed concurrently with the reception of data via the first receiving antenna. A switch may be utilized to enable or disable scanning operations via the second receiving antenna.
    Type: Application
    Filed: March 12, 2014
    Publication date: July 10, 2014
    Inventors: Louay JALLOUL, Mohamed Mostafa
  • Patent number: 8774738
    Abstract: Embodiments of the present disclosure provide systems and methods for estimating gain and phase error in a wireless transmitter. Embodiments of the present disclosure provide a gain and phase controller that uses a digital gain and phase estimator to jointly estimate both gain and phase. The forward and feedback signals of a wireless transmitter are digitized using analog to digital (ADC) converters. The digital signals are correlated with each other to dynamically extract gain and phase estimates of the loop. The gain and phase estimates are used to correct gain and phase errors in the wireless transmitter.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: July 8, 2014
    Assignee: Broadcom Corporation
    Inventors: Sriraman Dakshinamurthy, Mohamed Mostafa, Derek Shaeffer, Dennis Pu, Peter Capofreddi
  • Patent number: 8751542
    Abstract: The present disclosure includes techniques for storing indexed values that may increase computing performance. In one example, a method includes receiving a request to store an input value in a data structure. The method also includes determining the input value is not represented by an index value of the first group of index values, generating an index value that represents the input value, and determining the generated index value is not included in the first group of representations. The method also includes generating a second group of index values wherein a first size of index values of the first group is different than a second size of index values of the second group. The method also includes modifying a storage capacity of the data structure to store the index values of the second group of the second size and storing the second group of index values in the data structure.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: June 10, 2014
    Assignee: International Business Machines Corporation
    Inventors: Mohammed Mostafa, Graham A. Watts
  • Publication number: 20140130002
    Abstract: A method for using a breadboard involves receiving a circuit wiring connection layout, in which the circuit wiring connection layout includes a visual representation of circuit elements. The method further involves sending, to the breadboard, the circuit wiring connection layout, receiving a selection of a circuit element from the circuit elements to obtain a selected circuit element, sending, to the breadboard and based on the selected circuit element, a signal to activate an alert device on the breadboard indicating where a user should place the selected circuit element on the breadboard, receiving a circuit characteristic to measure from the selected circuit element, sending, to the breadboard, the circuit characteristic to measure from the selected circuit element, receiving, from the breadboard, a measurement of the circuit characteristic to obtain a measured circuit characteristic, and displaying the measured circuit characteristic.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 8, 2014
    Applicant: Integreight, Inc.
    Inventors: Amr Nasr ElDin AbdelAzim, Amr Ahmed Elsayed Mohamed Saleh, Mohamed Sami Ali Hassan, Mohamed Nashat Salman Ahmed, Islam Mohamed Mostafa Ahmed Mostafa, Ramy Ali Ibrahim, Ahmed Mohamed AbdelHamid Mohamed Metwally, Ahmed Mohamed Fahmy Abdel Aziz, Mahmoud Mohamed Attia ElMesalawy
  • Patent number: 8694039
    Abstract: A method and system are provided in which a device comprising a first or main phase locked loop (PLL) and a second or reference PLL, is operable to communicate utilizing a first and a second receiving antenna. The first PLL may generate a first signal based on a reference signal generated by the second PLL. A second signal may also be generated based on the reference signal. Data associated with a first radio access technology (RAT) may be received via the first receiving antenna utilizing the generated first signal. The first RAT or another RAT may be scanned via the second receiving antenna utilizing the generated second signal. The scan via the second receiving antenna may be performed concurrently with the reception of data via the first receiving antenna. A switch may be utilized to enable or disable scanning operations via the second receiving antenna.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: April 8, 2014
    Assignee: Broadcom Corporation
    Inventors: Louay Jalloul, Mohamed Mostafa
  • Patent number: 8623220
    Abstract: A simple, room-temperature method of producing CuO-doped zinc oxide nanoparticles was established by reacting zinc nitrate hexahydrate, copper nitrate trihydrate and cyclohexylamine (CHA) at room temperature. These nanoparticles may be used for photocatalytic degradation of cyanide in aqueous solutions. The degradation of cyanide is effective because electrons transfer from the p-type copper oxide to the n-type zinc oxide.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: January 7, 2014
    Assignee: King Abdulaziz City for Science and Technology (KACST)
    Inventors: Abdulaziz A Bagabas, Ahmed S. Alshammari, Mohamed F. Aboud, Mohamed Mokhtar Mohamed Mostafa, Emad Addurihem, Zeid A. Al-Othman, Musaed A Alangari
  • Publication number: 20130205203
    Abstract: An example method includes receiving a first input indicating user activity at a first position in a document in a document editing application. The document editing application is navigable among different partial views of the document. The document editing application displays a frame element that indicates a position of a presently displayed partial view of the document is with reference to an entirety of the document. The method further includes displaying, in response to the first input indicating user activity, a first marker, in or proximate to the frame element, indicating where the first position of user activity is located with reference to the entirety of the document.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 8, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Thomas A. MacDougall, Mohammed Mostafa
  • Publication number: 20130168328
    Abstract: A simple, room-temperature method of producing CuO-doped zinc oxide nanoparticles was established by reacting zinc nitrate hexahydrate, copper nitrate trihydrate and cyclohexylamine (CHA) at room temperature. These nanoparticles may be used for photocatalytic degradation of cyanide in aqueous solutions. The degradation of cyanide is effective because electrons transfer from the p-type copper oxide to the n-type zinc oxide.
    Type: Application
    Filed: July 13, 2012
    Publication date: July 4, 2013
    Applicant: King Abdulaziz City for Science and Technology (KACST)
    Inventors: ABDULAZIZ A. BAGABAS, Ahmed S. ALSHAMMARI, Mohamed F. Aboud, Mohamed Mokhtar Mohamed Mostafa, EMAD ADDURIHEM, Zeid A. AL-Othman, MUSAED A. ALANGARI
  • Patent number: 8473899
    Abstract: Access is obtained to an input object-oriented computer program. In the input object-oriented computer program, semantically equivalent objects are identified, which exist in different memory locations. If at least one of: a number of occurrences for the semantically equivalent objects exceeds a first threshold value, the threshold value being at least two; and a number of equality tests on the semantically equivalent objects exceeds a second threshold value, then a further step includes identifying an application program interface to reduce the semantically equivalent objects to a single object in a single memory location.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: June 25, 2013
    Assignee: International Business Machines Corporation
    Inventors: Paolina Centonze, Mohammed Mostafa, Marco Pistoia, Takaaki Tateishi
  • Patent number: 8362302
    Abstract: Isopropyl alcohol is a very useful chemical that is widely used in the industry as a solvent. Economical and easy process to make ispopropyl alcohol using novel composite catalyst is described in the instant application. Production of isopropyl alcohol (IPA) from dimehtyl ketone (DMK) and hydrogen (H2) in gas-phase using a ruthenium nano-particle-supported on activated charcoal/nano-zinc oxide composite catalyst is described. Gas phase production of isopropyl alcohol using DMK and hydrogen is also described using optimal time on stream, temperature, catalyst ratio and DMK/H2 ratio. Ruthenium nano-zinc oxide composite catalyst is formulated using different ratios of ruthenium activated charcoal and n-ZnO is described. CAT-IV is shown to be the best performer for the efficient production of isopropyl alcohol.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: January 29, 2013
    Assignee: King Abdulaziz City for Science and Technology (KACST)
    Inventors: Abdulaziz A Bagabas, Mohamed Mokhtar Mohamed Mostafa, Abdulrahman A Al-Rabiah, Vagif Malik Akhmedov
  • Publication number: 20120327097
    Abstract: The present disclosure includes techniques for storing indexed values that may increase computing performance. In one example, a method includes receiving a request to store an input value in a data structure. The method also includes determining the input value is not represented by an index value of the first group of index values, generating an index value that represents the input value, and determining the generated index value is not included in the first group of representations. The method also includes generating a second group of index values wherein a first size of index values of the first group is different than a second size of index values of the second group. The method also includes modifying a storage capacity of the data structure to store the index values of the second group of the second size and storing the second group of index values in the data structure.
    Type: Application
    Filed: June 24, 2011
    Publication date: December 27, 2012
    Applicant: International Business Machines Corporation
    Inventors: Mohammed Mostafa, Graham A. Watts
  • Publication number: 20120270511
    Abstract: Embodiments of the present disclosure provide systems and methods for estimating gain and phase error in a wireless transmitter. Embodiments of the present disclosure provide a gain and phase controller that uses a digital gain and phase estimator to jointly estimate both gain and phase. The forward and feedback signals of a wireless transmitter are digitized using analog to digital (ADC) converters. The digital signals are correlated with each other to dynamically extract gain and phase estimates of the loop. The gain and phase estimates are used to correct gain and phase errors in the wireless transmitter.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: Broadcom Corporation
    Inventors: Sriraman DAKSHINAMURTHY, Mohamed Mostafa, Derek Shaeffer, Dennis Pu, Peter Capofreddi