Patents by Inventor Ahmad Mohammad

Ahmad Mohammad 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: 20120127075
    Abstract: A portable electronic device includes a first segment including a first display and a second segment coupled to the first segment. The second segment includes a first input device on a first side of the second segment and a second display on a second side of the second segment. The second segment is rotatable relative to the first segment between a first orientation in which the first display is adjacent to the first input device, and a second orientation in which the first display is adjacent to the second display such that information is displayed continuously from the first display onto the second display.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 24, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventor: Ahmad Mohammad, Mohammad KHOLAIF
  • Publication number: 20110280230
    Abstract: An Access Point (AP) advertises the availability of notifications, and this advertisement may be received and interpreted by stations (STAs), both by associated STAs and by non-associated STAs. Upon being informed of the availability of the notification message, a STA may be able to identify the notification message by analyzing the advertisement. If the contents of the notification message comprise a control message, the STA may act on the control message in a way that influences the STA's behavior. If the contents of the notification message indicate restrictions imposed by the AP, the STA may determine, in view of the restrictions, not to attempt association with the AP.
    Type: Application
    Filed: May 14, 2010
    Publication date: November 17, 2011
    Applicant: Research in Motion Limited
    Inventors: Rudy Rawlins, Ahmad Mohammad Kholaif, Stephen McCann
  • Publication number: 20110110282
    Abstract: Example methods and apparatus to manage wireless device power consumption are disclosed. In accordance with a disclosed example method a data frame exchange is initiated with an access point of a wireless network. In response to not successfully completing the frame exchange with the access point, the access point is designated as providing the wireless terminal with fringe wireless signal coverage.
    Type: Application
    Filed: November 9, 2009
    Publication date: May 12, 2011
    Inventors: Yan Wu, Ahmad Mohammad Kholaif, Scott P. Gammon, Rudy Rawlins, Michael Montemurro
  • Publication number: 20110111726
    Abstract: An emergency locator component for a mobile communication device enables the mobile communication device to obtain location information from other neighbouring mobile devices in the event that the mobile communication device is unable to determine its own location. The mobile communication device employs a short-range radiofrequency transceiver to broadcast a request for location information to the neighbouring mobile devices. A response containing location information may be received from another mobile device equipped with a similar emergency locator component. Accordingly, this technology enables mobile devices to exchange location information by setting up an ad-hoc network. The location information can be included, for example, in an emergency phone call to an emergency services call center.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 12, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Ahmad Mohammad Mohammad Kholaif, Sasan Adibi, Nayef Mendahawi
  • Publication number: 20110085447
    Abstract: A power reduction mechanism in a mobile communications device detects the use of a wrong WEP encryption key in the establishment of a WLAN connection between the mobile device and an access point for both static and dynamic IP WLAN profiles. The power reduction mechanism detects an incorrect WEP key; authentication failure; failure to acquire an IP address for dynamic IP WLAN profiles; decryption errors; and broadcast/multicast frames from the handset not being redirected back to the BSS by the AP. Upon such detection, the mobile device takes one or more power conserving actions, e.g., adding the AP/profile to a ban list; attempting WLAN association for a banned AP/profile at longer intervals than for a non-banned AP/profile; skipping an AP/profile on the ban list for a time duration defined by a timer to conserve power; and flagging the banned AP/profile with a special mark to indicate it is banned.
    Type: Application
    Filed: April 13, 2010
    Publication date: April 14, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Ahmad Mohammad Kholaif, Ion Barbu, Nayef Fawaz Mendahawi, Krishna Kumar Bakthavathsalu
  • Publication number: 20110088078
    Abstract: In the event of an authentication process failure, a mobile station bans a connection profile storing the credentials provided by the mobile station when initiating the failed authentication process, thus affecting how subsequent scans—other than discovery scans—and connection attempts are handled. In the event of an authentication process failure, a mobile station bans or suppresses an access point with which the mobile station initiated the failed authentication process. The mobile station refrains from transmitting any communications addressed to the unique identifier of any banned access point. The mobile station may ignore any communications received from a banned access point. Suppressed access points are occasionally not made available to the mobile station for selection as a target for a connection attempt.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 14, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Ahmad Mohammad Kholaif, Ion Barbu, Krishna Kumar Bakthavathsalu, Nayef Fawaz Mendahawi, Denis Fedotenko
  • Publication number: 20110075578
    Abstract: Disclosed are a method and a system for setting a routing path in consideration of hidden nodes and carrier sense interference.
    Type: Application
    Filed: November 2, 2009
    Publication date: March 31, 2011
    Applicant: KAIST (Korea Advanced Institute of Science and Technology)
    Inventors: Myungchul KIM, Sungwon KANG, Hammash Deema Ahmad MOHAMMAD
  • Patent number: 7914282
    Abstract: Apparatus for reducing pollution from a flare stack includes a platform disposed on or near the top of the flare stack and a plurality of baffles and filters disposed on the platform. A first plurality of upwardly extending stainless steel baffles is disposed around the flare stack while a second plurality of baffles is disposed about the outer periphery of the platform. A first and a second plurality of filters are disposed between the first and second plurality of baffles. The first plurality of filters associated with a fan, blower or pump for drawing flare gas into and out of the filter.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: March 29, 2011
    Inventors: Khaled Jafar Al-Hasan, Ahmad Mohammad Al-Ali
  • Publication number: 20100260051
    Abstract: A method is presented for adapting the packet size for VoIP communications, determined on-the-fly by the total network delay inherent at the time of packet transmission. If network delays are small relative to the maximum permissible latency for VoIP communications, the payload size per packet may be increased to maximize efficiency for the transmitted call. Alternatively, if network delays are large, the payload size per packet may be decreased in order to assure that the perceived quality of the transmitted call is acceptable.
    Type: Application
    Filed: June 14, 2010
    Publication date: October 14, 2010
    Applicant: MCMASTER UNIVERSITY
    Inventors: Terence Douglas Todd, Ahmad Mohammad Mohammad Kholaif
  • Publication number: 20100246460
    Abstract: Methods and apparatus for controlling a wireless access point (AP) (e.g. a battery-powered wireless AP) for reduced power consumption are provided. In one illustrative example, the AP is adapted to provide communication access for end stations in one or more activated service intervals of each superframe. During operation, the AP changes the number of activated service intervals that are available to end stations for the communication access, as well as the durations of their active subinterval durations, in accordance with a change in traffic requirements. The AP regularly broadcasts data which indicates the activated service intervals that are made available to the mobile devices. A wireless transceiver of the AP is enabled during each activated service interval made available to the mobile devices, but the AP is placed in a power conservation mode during each deactivated service interval provided in between the activated service intervals.
    Type: Application
    Filed: March 27, 2009
    Publication date: September 30, 2010
    Applicant: MCMASTER UNIVERSITY
    Inventors: Ahmad Mohammad Kholaif, Mohammed N. Smadi, Polychronis Koutsakis, Terence Douglas Todd
  • Patent number: 7796516
    Abstract: A method is presented for adapting the packet size for VoIP communications, determined on-the-fly by the total network delay inherent at the time of packet transmission. If network delays are small relative to the maximum permissible latency for VoIP communications, the payload size per packet may be increased to maximize efficiency for the transmitted call. Alternatively, if network delays are large, the payload size per packet may be decreased in order to assure that the perceived quality of the transmitted call is acceptable.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: September 14, 2010
    Assignee: McMaster University
    Inventors: Terence Douglas Todd, Ahmad Mohammad Mohammad Kholaif
  • Publication number: 20080163594
    Abstract: Apparatus for reducing pollution from a flare stack includes a platform disposed on or near the top of the flare stack and a plurality of baffles and filters disposed on the platform. A first plurality of upwardly extending stainless steel baffles is disposed around the flare stack while a second plurality of baffles is disposed about the outer periphery of the platform. A first and a second plurality of filters are disposed between the first and second plurality of baffles. The first plurality of filters associated with a fan, blower or pump for drawing flare gas into and out of the filter.
    Type: Application
    Filed: January 4, 2007
    Publication date: July 10, 2008
    Inventors: Khaled Jafar Al-Hasan, Ahmad Mohammad Al-Ali
  • Patent number: 6315265
    Abstract: The invention involves a variable valve timing actuator that allows the opening and closing of engine valves to be variably and individually controlled without using a camshaft. The invention utilizes energy regeneration so energy delivered to a valve while accelerating it is recovered while it is decelerating. Regeneration is preferably provided by potential energy storage devices such as springs. Energy losses are made up by adding energy to the actuator while the valve is stationary (or nearly so) in an open or closed state. This is done by (1) moving the spring seats in relation to the valve, thereby “charging” the springs in relation to the valve, and/or by (2) moving the valve with respect to the spring seats to “charge” the springs with respect to the valve. This energy addition is extremely efficient because it is performed after the potential energy within the springs has already been expended and the valve is sitting stationary in its open and closed positions.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: November 13, 2001
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Scott Peter Adler, Norman Henry Beachley, Frank John Fronczak, Ahmad Mohammad Sabri