Patents by Inventor Cherif Jazra

Cherif Jazra 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: 8441965
    Abstract: Methods and apparatus for reducing data transmission. In one embodiment, rather than immediately transmitting first data, a first device postpones opening a data connection; any subsequently arriving data is queued with the first data, and transmitted together. Connection overhead is optimized by delaying connection establishment until it is necessary, and in some cases eliminating idle mode operation altogether. Stochastic embodiments are also disclosed for adjusting transmission behavior to maximize one or more desirable outcomes. For example, one such embodiment queues data for a stochastically determined period of time, prior to opening a data connection. The stochastically determined time interval balances the likelihood of efficiently servicing successively arriving data, and overall performance. Mechanisms for receiving and utilizing device user and/or receiver (e.g., base station) feedback are also disclosed.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: May 14, 2013
    Assignee: Apple Inc.
    Inventor: Cherif Jazra
  • Publication number: 20120309377
    Abstract: Methods, program products, and systems of over-the-air device configuration are disclosed. In general, in one aspect, a mobile device can determine, in an application subsystem of the mobile device, that the mobile device requests an initial setup. The application subsystem can send a request to a baseband subsystem of the mobile device. The request can include an indicator specifying that the baseband subsystem is to operate in a service configuration mode. The mobile device can request the configuration information from a registration server using the baseband subsystem that operates under the service configuration mode. Requesting the configuration information from the server can include connecting to the server over the air using a cellular network, through a specified carrier and under a specified data transfer cap. The mobile device can then configure the mobile device using configuration information received from the server.
    Type: Application
    Filed: June 1, 2012
    Publication date: December 6, 2012
    Inventors: Dallas De Atley, Arun G. Mathias, George R. Dicker, Jerry Hauck, Cherif Jazra, Andre Boule
  • Publication number: 20120033563
    Abstract: A method and apparatus for packet classification and prioritization using an internet protocol (IP) header in a mobile wireless device. The mobile wireless device includes an application processor and a transceiver. The transceiver in the mobile wireless device receives a higher layer packet from the application processor and reads a value of a field embedded in the higher layer packet. The transceiver creates at least one lower layer protocol data unit from the higher layer packet and maps the at least one lower layer protocol data unit to a wireless access channel having a quality of service property. The mapping of the lower layer protocol data unit is based on the value of the field read by the transceiver. In representative embodiments, the higher layer packet is an internet protocol datagram, and the field is a differentiated services code point field.
    Type: Application
    Filed: August 27, 2010
    Publication date: February 9, 2012
    Applicant: Apple Inc.
    Inventors: Cherif JAZRA, Sundararaman V. SHIVA, Thanigaivelu ELANGOVAN, Tong LIU, Madhusudan CHAUDHARY
  • Publication number: 20120033612
    Abstract: Methods and apparatus for reducing data transmission. In one embodiment, rather than immediately transmitting first data, a first device postpones opening a data connection; any subsequently arriving data is queued with the first data, and transmitted together. Connection overhead is optimized by delaying connection establishment until it is necessary, and in some cases eliminating idle mode operation altogether. Stochastic embodiments are also disclosed for adjusting transmission behavior to maximize one or more desirable outcomes. For example, one such embodiment queues data for a stochastically determined period of time, prior to opening a data connection. The stochastically determined time interval balances the likelihood of efficiently servicing successively arriving data, and overall performance. Mechanisms for receiving and utilizing device user and/or receiver (e.g., base station) feedback are also disclosed.
    Type: Application
    Filed: August 5, 2010
    Publication date: February 9, 2012
    Inventor: Cherif Jazra
  • Publication number: 20120033590
    Abstract: A method and apparatus for packet classification and prioritization using a user datagram protocol (UDP) header in a mobile wireless device. The mobile wireless device includes an application processor and a transceiver. The application processor sets a value of a field embedded in a higher layer packet and transfers the higher layer packet to the transceiver. The transceiver receives the higher layer packet from the application processor and reads the set value of the embedded field. The transceiver clears the value in the embedded field and creates at least one lower layer protocol data unit from the higher layer packet. The transceiver maps the lower layer protocol data unit to a wireless access channel having a transmission property based on the read value of the embedded field. In representative embodiments, the embedded field is an optional checksum in a UDP header.
    Type: Application
    Filed: August 27, 2010
    Publication date: February 9, 2012
    Applicant: APPLE INC.
    Inventors: Cherif JAZRA, Sundararaman V. SHIVA, Thanigaivelu ELANGOVAN, Tong LIU, Madhusudan CHAUDHARY
  • Patent number: 8009519
    Abstract: Various embodiments for maintaining a reliable time clock on a mobile computing device are described. In one embodiment, a mobile computing device may optionally enable and disable acquisition of time data from multiple sources including a mobile network and a global positioning system (GPS) satellite. The mobile computing device may comprise a time clock to display local time information derived from stored time data and may prioritize the multiple sources for writing and overwriting the stored time data to converge to the most reliable time data available. Other embodiments are described and claimed.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: August 30, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Cherif Jazra, Jianxiong Shi
  • Publication number: 20090248178
    Abstract: A mobile computing device comprises a memory, a processor and a transceiver. The memory is configured to store at least one type of position assist data. The processor is configured to provide a position fix based on the position assist data. The transceiver is configured for wireless communication. The memory is configured to store updated position assist data for the type of position assist data. The processor is operable in a first operating mode in which the type of position assist data is not updated and operable in a second operating mode in which the type of position assist data is updated in response to at least one triggering event.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 1, 2009
    Inventors: Janell Paulson, Isabel Ge Mahe, Craig C. Hamilton, Sachin S. Kansal, Gurunath Ramaswamy, Dante Russo, Cherif Jazra, Vivek Shah
  • Publication number: 20090219205
    Abstract: Various embodiments for maintaining a reliable time clock on a mobile computing device are described. In one embodiment, a mobile computing device may optionally enable and disable acquisition of time data from multiple sources including a mobile network and a global positioning system (GPS) satellite. The mobile computing device may comprise a time clock to display local time information derived from stored time data and may prioritize the multiple sources for writing and overwriting the stored time data to converge to the most reliable time data available. Other embodiments are described and claimed.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Applicant: PALM, INC.
    Inventors: Cherif Jazra, Jianxiong Shi
  • Publication number: 20090156253
    Abstract: Various embodiments for providing fully qualified domain name (FDQN) resolution for a home network realm based on an International Mobile Subscriber Identity (IMSI) are described. In one embodiment, a mobile computing device may be arranged to retrieve an IMSI including a Mobile Country Code (MCC) and a Mobile Network Code (MNC) and to derive an initial FQDN from the IMSI using an initial MNC rule. The mobile computing device may transmit an initial domain name system (DNS) request comprising the initial FQDN. The mobile computing device may be arranged to derive an alternate FQDN from the IMSI using an alternate MNC rule and to transmit a subsequent DNS request comprising the alternate FQDN when a DNS error message is received in response to the initial DNS request. Other embodiments are described and claimed.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 18, 2009
    Applicant: PALM, INC.
    Inventors: Jianxiong Shi, Cherif Jazra, Qin Zhang
  • Publication number: 20080268815
    Abstract: A system (and a method) are disclosed to access to secured services that are located behind a firewall. In one embodiment, the system receives at an authentication server a request to access the secured services. The request includes an identification of a mobile telephony device. The system transmits the identification of a mobile telephony device to a mobile telephone network server. The mobile telephone network server generates and transmits at least one security challenge that is forwarded to the mobile telephony device. In response, the mobile telephony device generates at least one response to the at least one security challenge, which gets forwarded to the mobile telephone network server. The mobile telephone network server notifies the authentication server if the response has been appropriately verified, and if so, the system allows the authentication server to allow access to the secured services, e.g., through an authenticated session.
    Type: Application
    Filed: April 26, 2007
    Publication date: October 30, 2008
    Applicant: PALM, INC.
    Inventors: Cherif Jazra, Jianxiong Shi, Isabel Mahe