Patents by Inventor Walid Ahmed
Walid Ahmed 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: 20240211720Abstract: There is described a method for decomposing a layer in an artificial intelligence (AI) model. A rank of decomposition is calculated based on a performance function of a processor. The layer is decomposed into a plurality of matrices based on the rank of decomposition. The layer is replaced in the AI model with the plurality of matrices to produce a compressed AI model.Type: ApplicationFiled: December 23, 2022Publication date: June 27, 2024Inventors: Habib HAJIMOLAHOSEINI, Walid AHMED, Yang LIU
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Publication number: 20190050935Abstract: A method for implementing an exchange market involves gathering, from a multitude of users, a multitude of wish lists including a multitude of marketable products and gathering, from a multitude of users, a multitude of offer lists including a multitude of marketable products. The method continues by matching, using a data structure, a selection of marketable products from the multitude of offer lists stored in the data structure to a selection of marketable products from the multitude of wish lists stored in the data structure to identify a multitude of matches, assigning a ranking value to each of the multitude of matches based on information stored in the data structure, positioning the multitude of matches according to the ranking value to obtain an ordered list, and presenting the multitude of matches according the ordered list.Type: ApplicationFiled: February 8, 2017Publication date: February 14, 2019Inventor: Walid Ahmed Fouad Ahmed Rashwan
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Patent number: 8854145Abstract: Methods and systems are provided to calibrate an oscillator circuit to reduce frequency pulling as a result of a change in power to a portion of the oscillator circuit. In an embodiment, an oscillator is coupled to a clock buffer circuit and a tuning capacitor configured to tune a frequency of the oscillator to a baseline frequency required for cellular communications. A change in power to the clock buffer circuit initiates a change in an amount of capacitance seen by the oscillator, which negatively impacts the tuning of the oscillator. A register stores a frequency offset caused by the change in power, and the tuning capacitor is adjusted, using the frequency offset, in response to the change in power, such that the total amount of capacitance seen by the oscillator is not changed when the change in power occurs.Type: GrantFiled: January 14, 2013Date of Patent: October 7, 2014Assignee: Broadcom CorporationInventors: Yuyu Chang, John Leete, Walid Ahmed, Wei Luo
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Patent number: 8843094Abstract: Aspects of a method and system for integrated blocker detection and automatic gain control are provided. In this regard, a communication device may generate one or more first signal strength indications based on a strength of a received signal at a first point in the analog front-end of the communication device. The communication device may generate one or more second signal strength indications based on a strength of the received signal at a second point in a digital processing module of the communication device. The first point in the analog front-end may be an input or an output of a down-conversion mixer. The second point in the digital processing module may be an output of an analog-to-digital converter or an output of a channel selection filter. The communication device may control, utilizing the first signal strength indication(s) and the second signal strength indication(s), a gain of one or more components of the communication device.Type: GrantFiled: August 9, 2010Date of Patent: September 23, 2014Assignee: Broadcom CorporationInventors: Walid Ahmed, John Leung, Theodoros Georgantas, Morten Damgaard, Nelson Sollenberger
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Patent number: 8354890Abstract: Methods and systems are provided to calibrate an oscillator circuit to reduce frequency pulling as a result of a change in power to a portion of the oscillator circuit. In an embodiment, an oscillator is coupled to a clock buffer circuit and a tuning capacitor configured to tune a frequency of the oscillator to a baseline frequency required for cellular communications. A change in power to the clock buffer circuit initiates a change in an amount of capacitance seen by the oscillator, which negatively impacts the tuning of the oscillator. A register stores a frequency offset caused by the change in power, and the tuning capacitor is adjusted, using the frequency offset, in response to the change in power, such that the total amount of capacitance seen by the oscillator is not changed when the change in power occurs.Type: GrantFiled: October 28, 2010Date of Patent: January 15, 2013Assignee: Broadcom CorporationInventors: Yuyu Chang, John Leete, Walid Ahmed, Wei Luo
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Patent number: 8295249Abstract: A data transmission includes a sequence of information symbols followed by zero or more non-information symbols, which carry no power. A receiver determines the size of a data block, i.e., the number of information symbols in the transmission, by calculating a series of transition indicators. Each transition indicator represents a likelihood that a particular symbol position corresponds to a transition between the information symbols and non-information symbols of the transmission.Type: GrantFiled: April 22, 2002Date of Patent: October 23, 2012Assignee: Alcatel LucentInventor: Walid Ahmed
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Patent number: 8279782Abstract: The present invention provides systems and methods for the assignment of a plurality of processors to a plurality of data servers. An exemplary embodiment of the present invention provides systems and methods for addressing the problem of transmitter/receiver assignment for softer handoff in CDMA systems as well as any other system that requires variable size allocation of processors in a resource sharing environment. An exemplary embodiment of a system for processing data received from data servers according to the present invention comprises a shared medium, a plurality of processors and a smaller plurality of intermediate nodes partitioned into K sets, wherein at the kth set, every “k” processors are associated with one intermediate node. The shared medium couples the data servers to the intermediate nodes.Type: GrantFiled: July 19, 2002Date of Patent: October 2, 2012Assignee: Alcatel LucentInventors: Hisham S. Abdel-Ghaffar, Walid Ahmed, Sanjiv Nanda, Ashwin Sampath
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Publication number: 20120068780Abstract: Methods and systems are provided to calibrate an oscillator circuit to reduce frequency pulling as a result of a change in power to a portion of the oscillator circuit. In an embodiment, an oscillator is coupled to a clock buffer circuit and a tuning capacitor configured to tune a frequency of the oscillator to a baseline frequency required for cellular communications. A change in power to the clock buffer circuit initiates a change in an amount of capacitance seen by the oscillator, which negatively impacts the tuning of the oscillator. A register stores a frequency offset caused by the change in power, and the tuning capacitor is adjusted, using the frequency offset, in response to the change in power, such that the total amount of capacitance seen by the oscillator is not changed when the change in power occurs.Type: ApplicationFiled: October 28, 2010Publication date: March 22, 2012Applicant: Broadcom CorporationInventors: Yuyu Chang, John Leete, Walid Ahmed, Wei Luo
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Publication number: 20120004005Abstract: Aspects of a method and system for integrated blocker detection and automatic gain control are provided. In this regard, a communication device may generate one or more first signal strength indications based on a strength of a received signal at a first point in the analog front-end of the communication device. The communication device may generate one or more second signal strength indications based on a strength of the received signal at a second point in a digital processing module of the communication device. The first point in the analog front-end may be an input or an output of a down-conversion mixer. The second point in the digital processing module may be an output of an analog-to-digital converter or an output of a channel selection filter. The communication device may control, utilizing the first signal strength indication(s) and the second signal strength indication(s), a gain of one or more components of the communication device.Type: ApplicationFiled: August 9, 2010Publication date: January 5, 2012Inventors: Walid Ahmed, John Leung, Theodoros Georgantas, Morten Damgaard, Nelson Sollenberger
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Patent number: 7502422Abstract: A transmitter comprises a baseband processor, a wideband phase modulator and an amplitude modulated amplifier. A signal is provided through the baseband processor and is converted into polar coordinates, comprised of amplitude and phase components, with the amplitude component being transmitted to the amplitude modulated amplifier. The amplitude modulated amplifier being comprised of independently controllable current sources, and with the phase component being transmitted to the wideband phase modulator, for modulation upon a carrier wave, and subsequent transmission to the amplitude modulated amplifier for amplification according to control imposed by the amplitude component upon the current sources.Type: GrantFiled: June 4, 2003Date of Patent: March 10, 2009Assignee: M/A—COM, Inc.Inventors: Anthony Dennis, Yongwen Yang, Walid Ahmed, Radwan Husseini, David Bengtson
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Patent number: 7502361Abstract: A new protocol layer is provided as part of a protocol stack associated with a packet-based multiaccess mobile communications system. The protocol layer is preferably located above a medium access control (MAC) protocol layer and a physical protocol layer of the system and below a transport/network protocol layer. Such a subnetwork protocol layer provides, inter alia, the communications system with various mobility management functions, for example, tracking mobile user stations throughout the system, mobile station access to the system, and connection/call continuity within the system. The subnetwork protocol layer of the invention also performs packet routing functions associated with the system. Routing can be accomplished in many ways, for example, via source routing, connectionless routing, or tunneling. Further, the new protocol layer of the invention is preferably located above a data link layer with respect to the protocol stack associated with communications between network nodes.Type: GrantFiled: January 15, 2003Date of Patent: March 10, 2009Assignee: Alcatel-Lucent USA Inc.Inventors: Walid Ahmed, Bharat Tarachand Doshi, Subrahmanyam Dravida, Hong Jiang, Kiran M. Rege
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Patent number: 7395493Abstract: The present invention provides systems and methods for adaptively decoding transmitted frames efficiently in non-Gaussian, non-stationary environments. One such system comprises a decoder adapted to decode a received transmission frame using a decoding scheme, a channel assessment unit for sensing channel characteristics, and a tuning unit for adjusting the decoding scheme based, at least in part, on channel characteristics sensed by the channel assessment unit.Type: GrantFiled: June 4, 2002Date of Patent: July 1, 2008Assignee: Lucent Technologies Inc.Inventors: Walid Ahmed, Juan G. Gonzalez, Salim Manji, Jose Luis Paredes
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Patent number: 7386779Abstract: The present invention provides systems and methods for correcting errors in a received frame. The present invention introduces diversity into an error detection and correction system at the receiver side by decoding a received frame using a plurality of decoding schemes. Each of these schemes are optimized for a different set of underlying assumptions. The schemes may be optimized to account for various types of noise including, not limited to, Gaussian noise and impulsive noise. The plurality of decoded frames are then validated using an outer decoder to choose a valid frame from candidate decoded frames. By including a plurality of decoders using a plurality of decoding schemes, the error detection and correction system may accurately detect and correct errors in a constantly changing environment having constantly changing noise patterns.Type: GrantFiled: May 31, 2002Date of Patent: June 10, 2008Assignee: Lucent TechnologiesInventors: Walid Ahmed, Juan G. Gonzalez, Salim Manji, Jose Luis Paredes
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Patent number: 7373151Abstract: A distributed dynamic channel allocation algorithm for a multi-carrier CDMA cellular system having at least one mobile base station. The distributed dynamic channel allocation algorithm uses channel power measurements from both the requesting mobile station and the mobile base station attempting to allocate an available resource to the mobile station. The distributed dynamic channel allocation algorithm attempts to allocate the best available resource for the requesting mobile station, in terms of interference, while minimizing the amount of interruption that the allocated resource may cause to existing connections in neighboring cells. Thus, the distributed dynamic channel allocation algorithm follows a “least-interference, least-interruption” strategy. The distributed dynamic channel allocation algorithm is load balancing, since it tends to assign new resources to mobile base station with lighter loads.Type: GrantFiled: August 24, 1999Date of Patent: May 13, 2008Assignee: Lucent Technologies Inc.Inventor: Walid Ahmed
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Publication number: 20070223621Abstract: A method and apparatus for signal power ramp-up in a communication transmission. Payload data is identified for transmission. A power reference signal is determined for transmission prior to the payload data. The power reference signal and the payload data are combined to form a data burst for transmission. The combined data burst is transmitted as, wherein the power reference signal is transmitted prior to the payload data within the data burst. A feedback signal is provided based on the power reference signal portion of the transmitted data burst, and a pre-distortion signal is calibrated based on the feedback signal.Type: ApplicationFiled: March 21, 2006Publication date: September 27, 2007Inventor: Walid Ahmed
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Publication number: 20070216554Abstract: An apparatus and method for characterizing an amplifier transmitting a band limited signal using a sample of the input signal to the amplifier and a sample of the output signal from the amplifier, where the output signal is sub-sampled. The sub-sampling frequency is chosen such that images of the band limited signal do not overlap. The input signal and the output signal in a polar format are processed to determine characteristics such AM/AM and AM/PM conversion nonlinearities.Type: ApplicationFiled: March 16, 2006Publication date: September 20, 2007Inventor: Walid Ahmed
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Publication number: 20070201535Abstract: A method and system for generating a frequency hopping electromagnetic signal based on a baseband data signal includes a frequency hopping pre-compensator. The frequency hopping pre-compensator determines a frequency hopping pre-compensation signal based on a desired frequency hopping sequence. The frequency hopping pre-compensation signal is combined with the baseband data signal to generate a pre-compensated baseband signal. An RF modulator modulates an RF carrier in accordance with the pre-compensated baseband signal to generate a modulated, frequency hopping RF carrier signal. An amplifier may then amplify the RF carrier signal as desired.Type: ApplicationFiled: February 16, 2006Publication date: August 30, 2007Inventor: Walid Ahmed
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Patent number: 7193981Abstract: In the method of processing soft handoff information at a base station, soft handoff information of a mobile station is received at the base station. The soft handoff information indicates at least a number of base stations in an active list of the mobile station. The active list is a list of base stations involved in a call of the mobile station. The base station applies a rules set to the soft handoff information to determine changes in the active list. The rules set requires more stringent conditions be met to add a base station to the active list when the active list includes a first number of base stations as compared to when the active list includes a second number of base stations; wherein the first number is greater than the second number. The determination results are then sent to the mobile station.Type: GrantFiled: July 25, 2000Date of Patent: March 20, 2007Assignee: Lucent Technologies Inc.Inventors: Walid Ahmed, Joe Huang, Sarath Kumar, Sanjiv Nanda, Devesh T. Patel, Melanie M. Wang
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Publication number: 20070040618Abstract: A system and method for modulating a phase component of an electromagnetic signal includes a phase/frequency detector having first and second inputs and an output. The first phase/frequency detector input may be configured to receive a reference signal. The system may include an oscillator having an input and an output. The oscillator may be configured to generate a desired oscillator output signal at its output. A divider may be configured to receive the oscillator output signal. The divider may have a divider count input and a divider carryout output that may be connected to the second phase/frequency detector input. A loop filter may be connected in series between the phase/frequency detector output and the oscillator input. The loop filter has a transfer function including at least two frequency response rate change points, where each of the frequency rate change points corresponds to a pole or a zero in the transfer function.Type: ApplicationFiled: August 17, 2005Publication date: February 22, 2007Inventors: Walid Ahmed, David Bengtson
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Patent number: 7181668Abstract: A method and system of decoding data including a padding unit, interleaver unit and decoder. A block of data symbols where each data symbol represents an encoded data bit, is received by the padding unit. The padding unit determines if the block data symbols has a number of data symbols equal to a threshold value M. If the number of data symbols is less than M, the padding unit pads the block of data symbols with at least one padding symbol. The decoder decodes the padded block of data symbols.Type: GrantFiled: March 29, 2002Date of Patent: February 20, 2007Assignee: Lucent Technologies Inc.Inventors: Walid Ahmed, Luis E. Caceres, Jin-Ghee Goh