Patents by Inventor Ahmed Ragab
Ahmed Ragab 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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Patent number: 9107126Abstract: According to an aspect of an embodiment, a base station includes a first interface, a second interface, a third interface, and an allocator. The first interface communicates with a plurality of terminals via a licensed radio spectrum. The second interface communicates with the plurality of terminals via an unlicensed radio spectrum. The third interface receives from a central controller a licensed radio spectrum assignment including a set of assigned physical resource blocks associated with the licensed radio spectrum. The allocator allocates unlicensed radio spectrum resources and the physical resource blocks among the plurality of terminals.Type: GrantFiled: April 13, 2013Date of Patent: August 11, 2015Assignee: FUJITSU LIMITEDInventors: Ahmed Ragab Elsherif, Wei-Peng Chen
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Publication number: 20150078161Abstract: According to an aspect of an embodiment, a method of controlling radio resources includes calculating multiple sets of scaled load estimates based on a single set of initial load estimates associated with estimated radio resource loads of multiple base stations. Each of the sets of scaled load estimates includes the single set of initial load estimates scaled by one of multiple scale factors. The method further includes determining multiple objective function results. Each objective function result is based at least in part on a result of an objective function for an individual set of scaled load estimates of the multiple sets of scaled load estimates. The method further includes determining an operating set of radio resources for multiple base stations based at least in part on the multiple objective function results.Type: ApplicationFiled: September 13, 2013Publication date: March 19, 2015Applicant: FUJITSU LIMITEDInventors: Ahmed Ragab ELSHERIF, Wei-Peng CHEN, Akira ITO
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Publication number: 20140307552Abstract: According to an aspect of an embodiment, a base station includes a first interface, a second interface, a third interface, and an allocator. The first interface communicates with a plurality of terminals via a licensed radio spectrum. The second interface communicates with the plurality of terminals via an unlicensed radio spectrum. The third interface receives from a central controller a licensed radio spectrum assignment including a set of assigned physical resource blocks associated with the licensed radio spectrum. The allocator allocates unlicensed radio spectrum resources and the physical resource blocks among the plurality of terminals.Type: ApplicationFiled: April 13, 2013Publication date: October 16, 2014Applicant: FUJITSU LIMITEDInventors: Ahmed Ragab ELSHERIF, Wei-Peng CHEN
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Publication number: 20140080483Abstract: A small cell controller for switching and aggregating wireless data between a cellular network and a noncellular network is disclosed. The small cell controller may include a cellular interface to communicate data with the cellular network, a noncellular interface to communicate data with the noncellular network, and an analyzer configured to determine whether a portion of the wireless data may be transferred from the cellular network to the noncellular network, and determine a first portion of the noncellular network to be allocated to the portion of the wireless data when the portion of the wireless data may be transferred.Type: ApplicationFiled: September 15, 2012Publication date: March 20, 2014Applicant: FUJITSU LIMITEDInventors: Ahmed Ragab Elsherif, Wei-Peng Chen
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Patent number: 8675137Abstract: An apparatus and a method for adaptive filtering includes an antenna that receives analog video broadcast signal data; an analog-to-digital converter coupled to the antenna and converting the received analog video broadcast signal data to digital video signal data; a frame buffer memory storing the digital video signal data; an instruction memory storing adaptive filtering instructions; and an adaptive filter coupled to the memory and the analog-to-digital converter, wherein the adaptive filter: reads the adaptive filter instructions from the memory; executes the adaptive filter instructions; averages an input pixel with a corresponding pixel stored in the frame buffer memory; calculates a forgetting factor for each pixel in the plurality of pixel values stored in the frame buffer memory; and filters noise from each pixel of the plurality of pixel values stored in the frame buffer memory based on the forgetting factor.Type: GrantFiled: April 13, 2010Date of Patent: March 18, 2014Assignee: Newport Media, Inc.Inventors: Ahmed Ragab Elsherif, Mohamed Abd El-Salam Ali, Nabil Yousef Wasily
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Patent number: 8305498Abstract: An apparatus and method for equalizing analog TV signals includes an antenna that receives the signal data, wherein the signal data comprises a luminance carrier comprising a luminance channel and a chrominance carrier comprising a chrominance channel; an analog-to-digital converter coupled to receiving antenna that converts the received signal data to digital signal data; an instruction memory storing digital equalizer instructions; and a digital equalizer system, coupled to the memory and the analog-to-digital converter, wherein the digital equalizer system processes the digital equalizer instructions to estimate a noise variation of the luminance channel; equalize the luminance channel; and equalize the chrominance channel, wherein the equalization of the chrominance channel is separate and distinct from the equalization of the luminance channel.Type: GrantFiled: April 13, 2010Date of Patent: November 6, 2012Assignee: Newport Media, Inc.Inventors: Ahmed Ragab Elsherif, Mohamed Abd El-Salam Ali, Nabil Yousef Wasily
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Patent number: 8264611Abstract: A system and method for downscaling signal data, where the system includes an antenna receiving video signal data; an analog-to-digital converter coupled to the antenna and converting the received analog signal data to digital signal data; a memory component storing video downscaling instructions; and a video downscaling processor, coupled to the memory component and the analog-to-digital converter, wherein the video downscaling processor, upon reading the video downscaling instructions from the memory component and executing the downscaling instructions: divides the digital video signal data into a plurality of blocks, wherein each block comprises a plurality of pixel elements; and cycles through the plurality of blocks, and for every block in the plurality of blocks, generates a new block, wherein the new block comprises a plurality of new pixels evenly spaced within the new block.Type: GrantFiled: March 27, 2010Date of Patent: September 11, 2012Assignee: Newport Media, Inc.Inventors: Mohamed Abd El-Salam Ali, Ahmed Ragab Elsherif, Nabil Yousef Wasily
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Patent number: 8165230Abstract: An apparatus and method for estimating Doppler frequency in a wireless communication network, wherein the method comprises determining a first correlation coefficient (c1) between a currently received Orthogonal Frequency Division Multiplexed (OFDM) symbol and an OFDM symbol received previous to the currently received OFDM symbol, and a second correlation coefficient (c2) between the currently received OFDM symbol and an OFDM symbol received immediately previous to the OFDM symbol received previous to the currently received OFDM symbol; performing a leaky integration across OFDM symbols of the resulting first and second correlation coefficients (c1, c2) to obtain an estimate of the first and second correlation coefficients; dividing the second correlation coefficient (c2) by the first correlation coefficient (c1) to obtain a correlation coefficient ratio; and using the correlation coefficient ratio as an estimate of the Doppler frequency in the wireless communication system.Type: GrantFiled: April 28, 2008Date of Patent: April 24, 2012Assignee: Newport Media, Inc.Inventors: Ahmed Ragab, Nabil Yousef
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Publication number: 20110249185Abstract: An apparatus and method for equalizing analog TV signals includes an antenna that receives the signal data, wherein the signal data comprises a luminance carrier comprising a luminance channel and a chrominance carrier comprising a chrominance channel; an analog-to-digital converter coupled to receiving antenna that converts the received signal data to digital signal data; an instruction memory storing digital equalizer instructions; and a digital equalizer system, coupled to the memory and the analog-to-digital converter, wherein the digital equalizer system processes the digital equalizer instructions to estimate a noise variation of the luminance channel; equalize the luminance channel; and equalize the chrominance channel, wherein the equalization of the chrominance channel is separate and distinct from the equalization of the luminance channel.Type: ApplicationFiled: April 13, 2010Publication date: October 13, 2011Applicant: NEWPORT MEDIA, INC.Inventors: Ahmed Ragab Elsherif, Mohamed Abd El-Salam Ali, Nabil Yousef Wasily
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Publication number: 20110249184Abstract: An apparatus and a method for adaptive filtering includes an antenna that receives analog video broadcast signal data; an analog-to-digital converter coupled to the antenna and converting the received analog video broadcast signal data to digital video signal data; a frame buffer memory storing the digital video signal data; an instruction memory storing adaptive filtering instructions; and an adaptive filter coupled to the memory and the analog-to-digital converter, wherein the adaptive filter: reads the adaptive filter instructions from the memory; executes the adaptive filter instructions; averages an input pixel with a corresponding pixel stored in the frame buffer memory; calculates a forgetting factor for each pixel in the plurality of pixel values stored in the frame buffer memory; and filters noise from each pixel of the plurality of pixel values stored in the frame buffer memory based on the forgetting factor.Type: ApplicationFiled: April 13, 2010Publication date: October 13, 2011Applicant: NEWPORT MEDIA, INC.Inventors: Ahmed Ragab Elsherif, Mohamed Abd El-Salam Ali, Nabil Yousef Wasily
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Publication number: 20110234895Abstract: A system and method for downscaling signal data, where the system includes an antenna receiving video signal data; an analog-to-digital converter coupled to the antenna and converting the received analog signal data to digital signal data; a memory storing video downscaling instructions; and a video downscaling processor, coupled to the memory and the analog-to-digital converter, wherein the video downscaling processor, upon reading the video downscaling instructions from the memory and executing the downscaling instructions: divides the digital video signal data into a plurality of blocks, wherein each block comprises a plurality of pixel elements; and cycles through the plurality of blocks, and for every block in the plurality of blocks, generates a new block, wherein the new block comprises a plurality of new pixels evenly spaced within the new block.Type: ApplicationFiled: March 27, 2010Publication date: September 29, 2011Applicant: NEWPORT MEDIA, INC.Inventors: Mohamed Abd El-Salam Ali, Ahmed Ragab Elsherif, Nabil Yousef Wasily
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Publication number: 20090323789Abstract: An apparatus and method for estimating Doppler frequency in a wireless communication network, wherein the method comprises determining a first correlation coefficient (c1) between a currently received Orthogonal Frequency Division Multiplexed (OFDM) symbol and an OFDM symbol received previous to the currently received OFDM symbol, and a second correlation coefficient (c2) between the currently received OFDM symbol and an OFDM symbol received immediately previous to the OFDM symbol received previous to the currently received OFDM symbol; performing a leaky integration across OFDM symbols of the resulting first and second correlation coefficients (c1, c2) to obtain an estimate of the first and second correlation coefficients; dividing the second correlation coefficient (c2) by the first correlation coefficient (c1) to obtain a correlation coefficient ratio; and using the correlation coefficient ratio as an estimate of the Doppler frequency in the wireless communication system.Type: ApplicationFiled: April 28, 2008Publication date: December 31, 2009Applicant: Newport Media, Inc.Inventors: Ahmed Ragab, Nabil Yousef