Patents by Inventor Mohammad A. Tassoudji
Mohammad A. Tassoudji 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).
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Publication number: 20200021010Abstract: Techniques are provided for improving the performance of a wideband antenna in a mobile device. An example of an apparatus according to the disclosure includes a first radiator formed on a first plane of a wireless device, a device cover including an inside surface formed on a second plane that is above and parallel to the first plane, and a second radiator disposed on the inside surface of the device cover, such that at least a portion the second radiator is located in an area that is orthogonal to the first radiator.Type: ApplicationFiled: July 13, 2018Publication date: January 16, 2020Inventors: Yu-Chin OU, Mohammad TASSOUDJI
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Publication number: 20190067219Abstract: An package and related methods are disclosed. The package may include an antenna, an insert made of low-loss material, and a mold, wherein the mold directly contacts and surrounds at least a portion of the insert, wherein the antenna is formed of conductive material disposed at least in part on a surface of the insert.Type: ApplicationFiled: August 24, 2017Publication date: February 28, 2019Inventors: Jon Bradley LASITER, Ravindra Vaman SHENOY, Donald William KIDWELL, JR., Mohammad TASSOUDJI, Mario Francisco VELEZ
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Patent number: 9905922Abstract: Techniques for improving coverage of an antenna system are disclosed. In an aspect, a wireless device includes a 3-D antenna system to improve coverage and enhance performance. The 3-D antenna system includes antenna elements formed on multiple planes pointing in different spatial directions. Antenna elements formed on the multiple planes are associated with different antenna beams, which can provide a larger line-of-sight (LOS) coverage for the wireless device. Beamforming may be performed for the antennas on a given plane to further improve LOS coverage. Non-LOS (NLOS) coverage may also improve since antenna beams pointing in different spatial directions may result in reflected signals of higher power levels due to better signal reflection for some antenna beams.Type: GrantFiled: August 31, 2011Date of Patent: February 27, 2018Assignee: QUALCOMM IncorporatedInventors: Cheol-Woong Lee, Mohammad A. Tassoudji, Roger Brockenbrough
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Patent number: 9848391Abstract: A method for ground to air communication includes receiving a first pilot signal on a first wide beam from a first ground base station by a first antenna element covering a first range of azimuth angles from an aircraft. Data is received on a directed data beam from the first ground base station by the first antenna element. A second pilot signal is received on a second wide beam from a second ground base station by a second antenna element covering a second range of azimuth angles different than the first range of azimuth angles. A signal strength of the second pilot signal is compared with a signal strength of the first pilot signal. Data reception is switched from the first antenna element to the second antenna element if the signal strength of the second pilot signal is greater than the signal strength of the first pilot signal.Type: GrantFiled: March 17, 2014Date of Patent: December 19, 2017Assignee: QUALCOMM IncorporatedInventors: Ahmad Jalali, Mohammad A. Tassoudji, Ernest T. Ozaki, William G. Ames, Leonard N. Schiff
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Patent number: 9295006Abstract: A method for real-time calibration of an air to ground two-way communication system. The method includes calibrating a ground base station antenna array according to forward link calibration coefficients received from an aircraft as part of a communication signaling protocol during operation of the air to ground two-way communication system. The method may also includes communicating between the ground base station antenna array and the aircraft over a narrow beam.Type: GrantFiled: June 24, 2011Date of Patent: March 22, 2016Assignee: QUALCOMM IncorporatedInventors: Ahmad Jalali, Mohammad A. Tassoudji, Ernest T. Ozaki, William G. Ames, Leonard N. Schiff
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Patent number: 8842050Abstract: An antenna is described. The antenna includes a planar circular structure. The antenna also includes a radiating element located at the center of the planar circular structure. The antenna further includes one or more parasitic elements located on a contour around the radiating element. The parasitic elements are aligned in parallel direction with the radiating element. The parasitic elements protrude from the planar circular structure. The antenna includes switches separating each of the one or more parasitic elements from ground. A switch in a first position creates a short between a parasitic element and ground. A switch in a second position creates an open circuit between the parasitic element and ground.Type: GrantFiled: March 11, 2013Date of Patent: September 23, 2014Assignee: QUALCOMM IncorporatedInventors: Noam Livneh, Raphael Kastner, Ernest Ozaki, Vered Bar Bracha, Mohammad A. Tassoudji
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Publication number: 20140200045Abstract: A method for ground to air communication includes receiving a first pilot signal on a first wide beam from a first ground base station by a first antenna element covering a first range of azimuth angles from an aircraft. Data is received on a directed data beam from the first ground base station by the first antenna element. A second pilot signal is received on a second wide beam from a second ground base station by a second antenna element covering a second range of azimuth angles different than the first range of azimuth angles. A signal strength of the second pilot signal is compared with a signal strength of the first pilot signal. Data reception is switched from the first antenna element to the second antenna element if the signal strength of the second pilot signal is greater than the signal strength of the first pilot signal.Type: ApplicationFiled: March 17, 2014Publication date: July 17, 2014Applicant: QUALCOMM IncorporatedInventors: Ahmad JALALI, Mohammad A. TASSOUDJI, Ernest T. OZAKI, William G. AMES, Leonard N. SCHIFF
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Patent number: 8676192Abstract: A method for ground to air communication includes receiving a first pilot signal on a first wide beam from a first ground base station by a first antenna element covering a first range of azimuth angles from an aircraft. Data is received on a directed data beam from the first ground base station by the first antenna element. A second pilot signal is received on a second wide beam from a second ground base station by a second antenna element covering a second range of azimuth angles different than the first range of azimuth angles. A signal strength of the second pilot signal is compared with a signal strength of the first pilot signal. Data reception is switched from the first antenna element to the second antenna element if the signal strength of the second pilot signal is greater than the signal strength of the first pilot signal.Type: GrantFiled: June 24, 2011Date of Patent: March 18, 2014Assignee: QUALCOMM IncorporatedInventors: Ahmad Jalali, Mohammad A. Tassoudji, Ernest T. Ozaki, William G. Ames, Leonard N. Schiff
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Patent number: 8421684Abstract: An antenna is described. The antenna includes a planar circular structure. The antenna also includes a radiating element located at the center of the planar circular structure. The antenna further includes one or more parasitic elements located on a contour around the radiating element. The parasitic elements are aligned in parallel direction with the radiating element. The parasitic elements protrude from the planar circular structure. The antenna includes switches separating each of the one or more parasitic elements from ground. A switch in a first position creates a short between a parasitic element and ground. A switch in a second position creates an open circuit between the parasitic element and ground.Type: GrantFiled: October 1, 2009Date of Patent: April 16, 2013Assignee: QUALCOMM IncorporatedInventors: Noam Livneh, Raphael Katsner, Ernest Ozaki, Vered Bar Bracha, Mohammad A. Tassoudji
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Publication number: 20130050056Abstract: Techniques for improving coverage of an antenna system are disclosed. In an aspect, a wireless device includes a 3-D antenna system to improve coverage and enhance performance. The 3-D antenna system includes antenna elements formed on multiple planes pointing in different spatial directions. Antenna elements formed on the multiple planes are associated with different antenna beams, which can provide a larger line-of-sight (LOS) coverage for the wireless device. Beamforming may be performed for the antennas on a given plane to further improve LOS coverage. Non-LOS (NLOS) coverage may also improve since antenna beams pointing in different spatial directions may result in reflected signals of higher power levels due to better signal reflection for some antenna beams.Type: ApplicationFiled: August 31, 2011Publication date: February 28, 2013Applicant: QUALCOMM INCORPORATEDInventors: Cheol-Woong Lee, Mohammad A. Tassoudji, Roger Brockenbrough
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Publication number: 20120202430Abstract: A method for ground to air communication includes receiving a first pilot signal on a first wide beam from a first ground base station by a first antenna element covering a first range of azimuth angles from an aircraft. Data is received on a directed data beam from the first ground base station by the first antenna element. A second pilot signal is received on a second wide beam from a second ground base station by a second antenna element covering a second range of azimuth angles different than the first range of azimuth angles. A signal strength of the second pilot signal is compared with a signal strength of the first pilot signal. Data reception is switched from the first antenna element to the second antenna element if the signal strength of the second pilot signal is greater than the signal strength of the first pilot signal.Type: ApplicationFiled: June 24, 2011Publication date: August 9, 2012Applicant: QUALCOMM IncorporatedInventors: Ahmad Jalali, Mohammad A. Tassoudji, Ernest T. Ozaki, William G. Ames, Leonard N. Schiff
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Publication number: 20120202418Abstract: A method for real-time calibration of an air to ground two-way communication system. The method includes calibrating a ground base station antenna array according to forward link calibration coefficients received from an aircraft as part of a communication signaling protocol during operation of the air to ground two-way communication system. The method may also includes communicating between the ground base station antenna array and the aircraft over a narrow beam.Type: ApplicationFiled: June 24, 2011Publication date: August 9, 2012Applicant: QUALCOMM IncorporatedInventors: Ahmad Jalali, Mohammad A. Tassoudji, Ernest T. Ozaki, William G. Ames, Leonard N. Schiff
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Publication number: 20120200458Abstract: A ground station antenna array includes a first array of antenna elements. A second array of antenna elements are vertically aligned with the first array of antenna elements. The first array of antenna elements and the second array of antenna elements are coupled to the digital beam forming circuitry and each cover a same sector of azimuth; the first array of antenna elements only covering a first elevation; the second array of antenna elements only covering a second lower elevation. The digital beam forming circuitry directs a radiation pattern of the first array of antenna elements in a first range of elevation angles, and directs a radiation pattern of the second array of antenna elements in a second range of elevation angles. The second array of antenna elements has higher gain than the first array. A respective transceiver is coupled to respective antenna elements of the first and second arrays.Type: ApplicationFiled: June 24, 2011Publication date: August 9, 2012Applicant: QUALCOMM IncorporatedInventors: Ahmad Jalali, Mohammad A. Tassoudji, Ernest T. Ozaki, William G. Ames, Leonard N. Schiff
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Publication number: 20110080325Abstract: An antenna is described. The antenna includes a planar circular structure. The antenna also includes a radiating element located at the center of the planar circular structure. The antenna further includes one or more parasitic elements located on a contour around the radiating element. The parasitic elements are aligned in parallel direction with the radiating element. The parasitic elements protrude from the planar circular structure. The antenna includes switches separating each of the one or more parasitic elements from ground. A switch in a first position creates a short between a parasitic element and ground. A switch in a second position creates an open circuit between the parasitic element and ground.Type: ApplicationFiled: October 1, 2009Publication date: April 7, 2011Applicant: QUALCOMM IncorporatedInventors: Noam Livneh, Raphael Katsner, Emest Ozaki, Vered Bar Bracha, Mohammad A. Tassoudji
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Publication number: 20110018780Abstract: The present disclosure provides techniques for configuring multiple element antenna arrays for use in multiple input multiple output (MIMO) communications. The antenna arrays include a ground plane and antenna elements. The ground plane forms an electrically conductive surface having a ground potential. The antenna elements, located near the ground plane, transmit and receive a wireless communication signals over a predetermined wireless channel.Type: ApplicationFiled: July 21, 2009Publication date: January 27, 2011Applicant: QUALCOMM IncoporatedInventors: Mohammad A. Tassoudji, Gregory A. Breit, Hemanth Sampath
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Publication number: 20110014959Abstract: A multi-channel wireless communication device includes first and second antenna elements. The first antenna element, being of a first type, transmits and receives a first wireless communication signal over a first predetermined wireless channel. The second antenna element, being of a second type different than the first type, transmits and receives a second wireless communication signal over a second predetermined wireless channel, different from the first predetermined wireless channel.Type: ApplicationFiled: July 17, 2009Publication date: January 20, 2011Applicant: QUALCOMM INCORPORATEDInventors: Mohammad A. Tassoudji, Hemanth Sampath
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Patent number: 6720929Abstract: The present invention represents an integrated antenna assembly comprising a cellular communications antenna and a satellite communications antenna. Such an antenna assembly can, therefore, be used for communications over either frequency range. A wireless telephone using this assembly can, therefore, operate with either a terrestrial cellular communications system or a satellite communications system. In a preferred embodiment of the invention, the satellite communications antenna is a quadrifilar helix antenna and the cellular communications antenna is a sleeve dipole. The whip portion of the sleeve dipole is positioned axially in the center of the quadrifilar helix antenna. This orientation permits operation in both the satellite and cellular frequency ranges without significant electromagnetic coupling.Type: GrantFiled: August 27, 2001Date of Patent: April 13, 2004Assignee: Qualcomm IncorporatedInventors: James L. Nybeck, Ernest T. Ozaki, Mohammad A. Tassoudji
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Patent number: 6344833Abstract: A dielectric resonator antenna having a resonator formed from a dielectric material mounted on a ground plane with a conductive skirt. The ground plane is formed from a conductive material. First and second probes are electrically coupled to the resonator for providing first and second signals, respectively, to or receiving from the resonator. The first and second probes are spaced apart from each other. The first and second probes are formed of conductive strips that are electrically connected to the perimeter of the resonator and are substantially orthogonal with respect to the ground plane. A dual band antenna can be constructed by positioning and connecting two dielectric resonator antennas together. Each resonator in the dual band configuration resonates at a particular frequency, thereby providing dual band operation. The resonators can be positioned either side by side or vertically. Further advantage is obtained by mounting the dual antenna stack within a radome.Type: GrantFiled: March 31, 2000Date of Patent: February 5, 2002Assignee: Qualcomm Inc.Inventors: Yi-Cheng Lin, Mohammad A. Tassoudji
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Patent number: 6320549Abstract: The present invention represents an integrated antenna assembly comprising a cellular communications antenna and a satellite communications antenna. Such an antenna assembly can, therefore, be used for communications over either frequency range. A wireless telephone using this assembly can, therefore, operate with either a terrestrial cellular communications system or a satellite communications system. In a preferred embodiment of the invention, the satellite communications antenna is a quadrifilar helix antenna and the cellular communications antenna is a sleeve dipole. The whip portion of the sleeve dipole is positioned axially in the center of the quadrifilar helix antenna. This orientation permits operation in both the satellite and cellular frequency ranges without significant electromagnetic coupling.Type: GrantFiled: September 22, 1999Date of Patent: November 20, 2001Assignee: Qualcomm Inc.Inventors: James L. Nybeck, Ernest T. Ozaki, Mohammad A. Tassoudji
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Patent number: 6107977Abstract: A helical antenna having a radiator portion formed on a flexible substrate and a rigid substrate with a center feed element electrically connected to the radiator portion. The flexible substrate is supported by a support assembly with the radiator portion spaced substantially equidistant from the center feed element. The support assembly includes a first non-conductive member mounted to one surface of the rigid substrate at a first location, a second non-conductive member mounted to a second surface at the first location, a third non-conductive member mounted to the one surface at a second location spaced from the first location, and a fourth non-conductive member mounted to the second surface at the second location. A tool for assembling the helical antenna is provided having a base member with a plurality of elongated members mounted thereon substantially equidistant from each other and extending outwardly therefrom.Type: GrantFiled: August 19, 1998Date of Patent: August 22, 2000Assignee: QUALCOMM IncorporatedInventors: Mohammad A. Tassoudji, Ronald Gulino