Patents by Inventor Mohamed A. Khalifa

Mohamed A. Khalifa 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).

  • Patent number: 9860804
    Abstract: Methods, systems, apparatuses, and devices are described for transmitting a measurement report during wireless communications. When, for example, a low-power period (e.g., CDRX OFF period) is scheduled to begin during a time defined by a measurement event timer (TTT timer), a UE may modify the low-power period. The low-power period may be modified based, at least in part on determining the low-power period of the UE will begin during a time defined by a measurement event timer, a duration of the measurement event timer, and a duration of the low-power period. Modifying the low-power period may include delaying the start of the low-power state until after transmission of the MR associated with the measurement event timer or skipping the low-power period altogether. The UE may transmit the MR based, at least in part, on the modification.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: January 2, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Yongle Wu, Vishu Kumar, Amit Mahajan, Udayan Murli Bhawnani, Won-Joon Choi, Shivratna Giri Srinivasan, Osama Nafeth Saleem Alrabadi, Dominique Francois Bressanelli, Marian Madan, Mohamed Khalifa, Florina Andreea Prisecaru
  • Patent number: 9647231
    Abstract: Disclosed is a method for the production of an organic light emitting device of the OLED type, the method including the following sequences of steps: a step of forming a stack of layers on a substrate; the stack including, successively and in the following order, a first electrode, an organic layer and a second electrode; a step of positioning a cover; a step of forming a connection pad. The method also includes: a step of fixing a first end of at least one elongated electrical connection member to an area of the connection pad covering a portion of the second face of the cover and a step of forming a layer of resist, the layer of resist being so configured as to preserve an electrical access to a second end of the elongated electrical connection member above the layer of resist.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: May 9, 2017
    Assignee: ASTRON FIAMM SAFETY
    Inventors: Mohamed Khalifa, Bruno Dussert-Vidalet, Vincent Michalcik
  • Patent number: 9574916
    Abstract: A vortex flowmeter may utilize a ring-shaped bluff body as the vortex generator or shedder. The ring shape and size of the vortex ring generator may be optimized to produce linear and stable toroidal vortex outputs that may outperform the conventional shedder bar. In comparison to the conventional vortex shedder bar, the ring may have a slimmer configuration and a higher K-factor, and hence, a higher resolution.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: February 21, 2017
    Assignee: YOKOGAWA CORPORATION OF AMERICA
    Inventor: Mohamed Khalifa
  • Patent number: 9515293
    Abstract: The invention relates to an organic light-emitting diode (OLED) comprising a stack comprising, in sequence and in the following order, a substrate (2), a first electrode (3), an organic layer (4), and a second electrode (5), characterized in that it comprises a layer of adhesive (6) and a cover (7) fixed onto said stack using said layer of adhesive (6), and the cover (7) comprises at least one through-opening (8), wherein electrical access to an electrode (3, 5) is possible through said opening (8). The present invention can be more specifically used in electronic devices having screens and lighting.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: December 6, 2016
    Assignee: Astron Flamm Safety Sarl
    Inventors: Bruno Dussert-Vidalet, Mohamed Khalifa, Claire Vacher
  • Publication number: 20160276621
    Abstract: Disclosed is a method for the production of an organic light emitting device of the OLED type, the method including the following sequences of steps: a step of forming a stack of layers on a substrate; the stack including, successively and in the following order, a first electrode, an organic layer and a second electrode; a step of positioning a cover; a step of forming a connection pad. The method also includes: a step of fixing a first end of at least one elongated electrical connection member to an area of the connection pad covering a portion of the second face of the cover and a step of forming a layer of resist, the layer of resist being so configured as to preserve an electrical access to a second end of the elongated electrical connection member above the layer of resist.
    Type: Application
    Filed: November 8, 2013
    Publication date: September 22, 2016
    Inventors: Mohamed KHALIFA, Bruno DUSSERT-VIDALET, Vincent MICHALCIK
  • Patent number: 9424656
    Abstract: To increase the timeliness, objectivity, and efficiency in evaluating surgical procedures such as those performed by ophthalmology residents' learning of cataract surgery, an automatic analysis system for surgeries such as cataract surgery is provided to assess performance, particularly in the capsulorrhexis step on the Kitaro simulator. Computer vision technologies are employed to measure performance of this critical step including duration, centrality, circularity, size, as well as motion stability during the capsulorrhexis procedure. Consequently, a grading mechanism is established based on either linear regression or non-linear classification via Support Vector Machine (SVM) of those computed measures. Comparisons of expert graders to the computer vision based approach have demonstrated the accuracy and consistency of the computerized technique.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: August 23, 2016
    Assignee: University of Rochester
    Inventors: Jiebo Luo, Junhuan Zhu, Yousuf Mohamed Khalifa
  • Patent number: 9419238
    Abstract: Provided is a PIN type organic light emitting diode that includes a first electrode of a first electrode type, a first transport layer of a first type of charge carrier, an emission layer, a second transport layer of a second type of charge carrier, and a second electrode of a second type of electrode. At least one of the transport layers includes at least two elementary transport layers and each elementary transport layer of the same transport layer has, in relation to an adjacent elementary transport layer, a decreasing mobility of charge carriers a farther distance from the emission layer, and consequently providing a decreasing conductivity based on a distance of the elementary transport layer from the adjacent electrode, with the elementary transport layers of the same transport layer having the same dopant concentration.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: August 16, 2016
    Assignee: Astron Fiamm Safety
    Inventors: Mohamed Khalifa, Hakim Choukri, Hélène Cloarec, Bruno Dussert-Vidalet, Phiippe Taillepierre
  • Publication number: 20160084686
    Abstract: A vortex flowmeter may utilize a ring-shaped bluff body as the vortex generator or shedder. The ring shape and size of the vortex ring generator may be optimized to produce linear and stable toroidal vortex outputs that may outperform the conventional shedder bar. In comparison to the conventional vortex shedder bar, the ring may have a slimmer configuration and a higher K-factor, and hence, a higher resolution.
    Type: Application
    Filed: November 25, 2015
    Publication date: March 24, 2016
    Inventor: Mohamed Khalifa
  • Patent number: 9279706
    Abstract: Certain embodiments herein relate to configurations for reducing the flow area for fluids traveling through a Vortex flowmeter. Such configurations may establish a minimum required Reynolds number consistent with optimized performance of the Vortex flowmeter. Various configurations for achieving optimized performance may include inserting one or more segments or a streamlined, torpedo-shaped body into a bore of a meter body of the Vortex flowmeter to block a certain cross-sectional area of the bore. By reducing the cross-sectional area of the bore, the Reynolds number of fluids may be increased to the optimized level. Another configuration may include reducing the diameter of the bore of the meter body. Any of these configurations may be implemented to achieve a desired Reynolds number, and hence, optimized performance. Certain embodiments herein also relate to determining or calculating precise or near precise sizes for segment insertions, torpedo body diameters, and diameters of the meter body.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: March 8, 2016
    Assignee: Yokogawa Corporation of America
    Inventor: Mohamed Khalifa
  • Patent number: 9243940
    Abstract: A vortex flowmeter may utilize a ring-shaped bluff body as the vortex generator or shedder. The ring shape and size of the vortex ring generator may be optimized to produce linear and stable toroidal vortex outputs that may outperform the conventional shedder bar. In comparison to the conventional vortex shedder bar, the ring may have a slimmer configuration and a higher K-factor, and hence, a higher resolution.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: January 26, 2016
    Assignee: YOKOGAWA CORPORATION OF AMERICA
    Inventor: Mohamed Khalifa
  • Patent number: 9194729
    Abstract: Certain embodiments herein relate to configurations for reducing the flow area for fluids traveling through a Vortex flowmeter. Such configurations may establish a minimum required Reynolds number consistent with optimized performance of the Vortex flowmeter. Various configurations for achieving optimized performance may include inserting one or more segments or a streamlined, torpedo-shaped body into a bore of a meter body of the Vortex flowmeter to block a certain cross-sectional area of the bore. By reducing the cross-sectional area of the bore, the Reynolds number of fluids may be increased to the optimized level. Another configuration may include reducing the diameter of the bore of the meter body. Any of these configurations may be implemented to achieve a desired Reynolds number, and hence, optimized performance. Certain embodiments herein also relate to determining or calculating precise or near precise sizes for segment insertions, torpedo body diameters, and diameters of the meter body.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: November 24, 2015
    Assignee: YOKOGAWA CORPORATION OF AMERICA
    Inventor: Mohamed Khalifa
  • Publication number: 20150320510
    Abstract: To increase the timeliness, objectivity, and efficiency in evaluating surgical procedures such as those performed by ophthalmology residents' learning of cataract surgery, an automatic analysis system for surgeries such as cataract surgery is provided to assess performance, particularly in the capsulorrhexis step on the Kitaro simulator. Computer vision technologies are employed to measure performance of this critical step including duration, centrality, circularity, size, as well as motion stability during the capsulorrhexis procedure. Consequently, a grading mechanism is established based on either linear regression or non-linear classification via Support Vector Machine (SVM) of those computed measures. Comparisons of expert graders to the computer vision based approach have demonstrated the accuracy and consistency of the computerized technique.
    Type: Application
    Filed: May 12, 2015
    Publication date: November 12, 2015
    Inventors: Jiebo Luo, Junhuan Zhu, Yousuf Mohamed Khalifa
  • Patent number: 9171477
    Abstract: A Method and System For Recognizing and Assessing Surgical Procedures from a video or series of still images is described. Evaluation of surgical techniques of residents learning skills in areas such as cataract surgery is an important aspect of the learning process. The use of videos has become common in such evaluations, but is a time consuming manual process. The present invention increases the efficiency and speed of the surgical technique evaluation process by identifying and saving only information that is relevant to the evaluation process. Using image processing techniques of the present invention, an anatomic structure of a surgical procedure is located on a video, timing of predefined surgical stages is determined, and measurements are taken from frames of the predefined surgical stages to allow the performance of a surgeon to be assessed in an automated and efficient manner.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: October 27, 2015
    Assignee: UNIVERSITY OF ROCHESTER
    Inventors: Jiebo Luo, Junhuan Zhu, Yousuf Mohamed Khalifa
  • Publication number: 20150171361
    Abstract: Provided is a PIN type organic light emitting diode that includes a first electrode of a first electrode type, a first transport layer of a first type of charge carrier, an emission layer, a second transport layer of a second type of charge carrier, and a second electrode of a second type of electrode. At least one of the transport layers includes at least two elementary transport layers and each elementary transport layer of the same transport layer has, in relation to an adjacent elementary transport layer, a mobility of charge carriers corresponding to a decreasing transport layer and consequently providing a decreasing conductivity based on a distance of the elementary transport layer from the adjacent electrode, with the elementary transport layers of the same transport layer having the same dopant concentration.
    Type: Application
    Filed: June 14, 2013
    Publication date: June 18, 2015
    Inventors: Mohamed Khalifa, Hakim Choukri, Hélène Cloarec, Bruno Dussert-Vidalet, Phiippe Taillepierre
  • Publication number: 20150133061
    Abstract: Methods, systems, apparatuses, and devices are described for transmitting a measurement report during wireless communications. When, for example, a low-power period (e.g., CDRX OFF period) is scheduled to begin during a time defined by a measurement event timer (TTT timer), a UE may modify the low-power period. The low-power period may be modified based, at least in part on determining the low-power period of the UE will begin during a time defined by a measurement event timer, a duration of the measurement event timer, and a duration of the low-power period. Modifying the low-power period may include delaying the start of the low-power state until after transmission of the MR associated with the measurement event timer or skipping the low-power period altogether. The UE may transmit the MR based, at least in part, on the modification.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 14, 2015
    Inventors: Yongle WU, Vishu KUMAR, Amit MAHAJAN, Udayan Murli BHAWNANI, Won-Joon CHOI, Shivratna Giri SRINIVASAN, Osama Nafeth Saleem ALRABADI, Dominique Francois BRESSANELLI, Marian MADAN, Mohamed KHALIFA, Florina Andreea PRISECARU
  • Publication number: 20150027234
    Abstract: Certain embodiments herein relate to configurations for reducing the flow area for fluids traveling through a Vortex flowmeter. Such configurations may establish a minimum required Reynolds number consistent with optimized performance of the Vortex flowmeter. Various configurations for achieving optimized performance may include inserting one or more segments or a streamlined, torpedo-shaped body into a bore of a meter body of the Vortex flowmeter to block a certain cross-sectional area of the bore. By reducing the cross-sectional area of the bore, the Reynolds number of fluids may be increased to the optimized level. Another configuration may include reducing the diameter of the bore of the meter body. Any of these configurations may be implemented to achieve a desired Reynolds number, and hence, optimized performance. Certain embodiments herein also relate to determining or calculating precise or near precise sizes for segment insertions, torpedo body diameters, and diameters of the meter body.
    Type: Application
    Filed: February 5, 2014
    Publication date: January 29, 2015
    Applicant: Yokogawa Corporation of America
    Inventor: Mohamed Khalifa
  • Publication number: 20150027233
    Abstract: Certain embodiments herein relate to configurations for reducing the flow area for fluids traveling through a Vortex flowmeter. Such configurations may establish a minimum required Reynolds number consistent with optimized performance of the Vortex flowmeter. Various configurations for achieving optimized performance may include inserting one or more segments or a streamlined, torpedo-shaped body into a bore of a meter body of the Vortex flowmeter to block a certain cross-sectional area of the bore. By reducing the cross-sectional area of the bore, the Reynolds number of fluids may be increased to the optimized level. Another configuration may include reducing the diameter of the bore of the meter body. Any of these configurations may be implemented to achieve a desired Reynolds number, and hence, optimized performance. Certain embodiments herein also relate to determining or calculating precise or near precise sizes for segment insertions, torpedo body diameters, and diameters of the meter body.
    Type: Application
    Filed: February 5, 2014
    Publication date: January 29, 2015
    Applicant: Yokogawa Corporation of America
    Inventor: Mohamed Khalifa
  • Publication number: 20150027235
    Abstract: A vortex flowmeter may utilize a ring-shaped bluff body as the vortex generator or shedder. The ring shape and size of the vortex ring generator may be optimized to produce linear and stable toroidal vortex outputs that may outperform the conventional shedder bar. In comparison to the conventional vortex shedder bar, the ring may have a slimmer configuration and a higher K-factor, and hence, a higher resolution.
    Type: Application
    Filed: January 14, 2014
    Publication date: January 29, 2015
    Applicant: Yokogawa Corporation of America
    Inventor: Mohamed Khalifa
  • Publication number: 20140286533
    Abstract: A Method and System For Recognizing and Assessing Surgical Procedures from a video or series of still images is described. Evaluation of surgical techniques of residents learning skills in areas such as cataract surgery is an important aspect of the learning process. The use of videos has become common in such evaluations, but is a time consuming manual process. The present invention increases the efficiency and speed of the surgical technique evaluation process by identifying and saving only information that is relevant to the evaluation, process. Using image processing techniques of the present invention, an anatomic structure of a surgical procedure is located on a video, timing of predefined surgical stages is determined, and measurements are taken from frames of the predefined surgical stages to allow the performance of a surgeon to be assessed in an automated and efficient manner.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 25, 2014
    Inventors: Jiebo Luo, Junhuan Zhu, Yousuf Mohamed Khalifa
  • Publication number: 20140217377
    Abstract: The invention relates to an organic light-emitting diode (OLED) comprising a stack comprising, in sequence and in the following order, a substrate (2), a first electrode (3), an organic layer (4), and a second electrode (5), characterized in that it comprises a layer of adhesive (6) and a cover (7) fixed onto said stack using said layer of adhesive (6), and the cover (7) comprises at least one through-opening (8), wherein electrical access to an electrode (3, 5) is possible through said opening (8). The present invention can be more specifically used in electronic devices having screens and lighting.
    Type: Application
    Filed: June 15, 2012
    Publication date: August 7, 2014
    Inventors: Bruno Dussert-Vidalet, Mohamed Khalifa, Claire Vacher