Patents by Inventor Mohammed Alam
Mohammed Alam 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: 20240171111Abstract: Apparatus and techniques for analyzing a capacitance value in an electric motor inverter are disclosed. A processor is coupled to a DC-AC inverter, which includes a capacitor across its terminals and is powered by a battery. The processor performs resistor switching to enable singular, periodic measurement of the capacitance. The measured value is compared with a nominal or beginning of life (BOL) value. An alert may be sent if the capacitance has degraded beyond a threshold. In other aspects, the DC torque ripple envelop is used to measure capacitance. The outcome is compared with the other tests to assess consistency. An inconsistent outcome may identify potential resistor degradation.Type: ApplicationFiled: November 18, 2022Publication date: May 23, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Muhammad H. Alvi, Khorshed Mohammed Alam, Jiyu Zhang, Chunhao J. Lee, Brian A. Welchko
-
Patent number: 11956855Abstract: A system enables a home operator to establish an automated monitoring process which identifies outage events on competitor wireless networks (e.g., peer operators) operating in the same geographies as home operator. The home operator then is able to selectively offer, in near real-time, to open roaming to the peer operator, or implement roaming automatically based on predefined and mutually agreed upon rule sets. The monitoring process may observe non-customer attach request volumes in order to identify outage events on competitor wireless networks.Type: GrantFiled: October 12, 2021Date of Patent: April 9, 2024Assignees: AT&T Intellectual Property I, L.P., AT&T Mobility II LLCInventors: Robert S. Klein, Mohammed Yousuffi, Nathan Stowell, Senthil Raj Dhandapani, Daniel Powell, Iftekhar Alam, Slawomir Stawiarski, William Turczyn, Ngwane Maina
-
Publication number: 20240113711Abstract: A system includes an electronic device including a circuit having a semiconductor switch, and a switching control system operably connected to the semiconductor switch. The switching control system is configured to control a switching speed of the semiconductor switch based on a received voltage by altering at least one of a gate resistance and a gate capacitance of the semiconductor switch.Type: ApplicationFiled: September 30, 2022Publication date: April 4, 2024Inventors: Muhammad Hussain Alvi, Khorshed Mohammed Alam, Yilun Luo, Chandra S. Namuduri, Suresh Gopalakrishnan, Junghoon Kim, Mohamed Kamel
-
Publication number: 20240022161Abstract: A variable current gate driver for a transistor includes a first current control device having a first controllable output current. The first current control device is electrically connected between a first bus and an activator of the transistor, and a second current control device having a second controllable output current. The second current control device is electrically connected between the activator of the transistor and a second bus. A controller is operatively connected to the first and second current control devices to control the first and second controllable output currents to control the first and second current control devices to control activation of the transistor via the activator. The controller is operative to control the first and second current control devices to control a slew rate of the transistor.Type: ApplicationFiled: July 15, 2022Publication date: January 18, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Hong Nguyen, Michael Z. Pieszala, Yilun Luo, Khorshed Mohammed Alam, Sanjeev M. Naik, Benjamin S. Ngu
-
Publication number: 20240022946Abstract: A slew rate controllable system for powering an electric machine. The system may include a plurality of power transistors operable for converting a direct current (DC) input into an alternating current (AC) output suitable for electrically powering the electric machine. The system may further include a gate drive system operable for controlling a slew rate associated with transitioning the power transistors between the opened and closed states.Type: ApplicationFiled: September 28, 2023Publication date: January 18, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Yilun Luo, Khorshed Mohammed Alam, Eric B. Gach, Hong Nguyen, Chandra S. Namuduri, Rashmi Prasad, Junghoon Kim
-
Patent number: 11356126Abstract: An apparatus of user equipment (UE) includes a radio integrated circuit (IC), an adjustable external low noise amplifier (eLNA) external to the radio IC, and processing circuitry. The radio IC includes a receive signal circuit path including an adjustable gain internal low noise amplifier (iLNA), and a transmit signal circuit path including a digital-to-analog converter (DAC) circuit configured to convert digital signals to analog baseband signals for transmitting. The processing circuitry is configured to provide digital values of the digital signals to the DAC circuit and initiate adjusting gain of one or both of the iLNA and the eLNA according to the digital values.Type: GrantFiled: March 30, 2018Date of Patent: June 7, 2022Assignee: Intel CorporationInventors: Mohammed Alam, David Graham, Jorge Ivonnet, Hasham Khushk, James Gregory Mittel, John J. Parkes, Jr.
-
Patent number: 11233536Abstract: A wireless communication device can include an antenna array configured to receive a plurality of radio frequency (RF) signals, RF circuitry, and digital baseband receive circuitry. The RF circuitry is configured to process the plurality of RF signals received via the antenna array to generate a single RF signal. The digital baseband receive circuitry is coupled to the RF circuitry and is configured to generate a downconverted signal based on the single RF signal, amplify the downconverted signal to generate an amplified downconverted signal, and convert the amplified downconverted signal to generate a digital output signal for processing by a wireless modem. The digital baseband receive circuitry further includes at least a first filtering system configured to filter the downconverted signal prior to amplification.Type: GrantFiled: March 28, 2018Date of Patent: January 25, 2022Assignee: Intel CorporationInventors: Mohammed Alam, Yiwen Chen, Ricardo Fernandez, John J. Parkes, Jr., James Riches, Werner Schelmbauer, Daniel Schwartz, Michael David Vicker, Dong-Jun Yang
-
Publication number: 20210376797Abstract: A radio-frequency (RF) amplifier circuit facilites carrier-aggregation (CA) operation in a wireless communication network. A first amplifier subcircuit is coupled to an input node, and a second amplifier subcircuit is coupled to the input node. An amplifier subcircuit selector is to selectively enable operation of the first amplifier subcircuit, the second amplifier subcircuit, or the first and the second amplifier subcircuits together, in response to a selection indication. A reactive coupling network is arranged to selectively adjust the input impedance at the input node in response to the selection indication to reduce the input impedance variation.Type: ApplicationFiled: March 30, 2018Publication date: December 2, 2021Inventors: Mohammed ALAM, Yiwen CHEN, Ricardo FERNANDEZ, Dong-Jun YANG
-
Patent number: 11146276Abstract: A wireless communication device can include an antenna configured to sense a radio frequency (RF) signal. The wireless communication device can include signal estimation circuitry configured to generate estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include multi-tone generator circuitry coupled to the signal estimation circuitry and configured to generate a composite spur cancellation signal based on the estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include adder circuitry configured to subtract the spur cancellation signal from the RF signal to generate a spur cancelled signal.Type: GrantFiled: March 30, 2018Date of Patent: October 12, 2021Assignee: Intel CorporationInventors: Niranjan Karandikar, Mohammed Alam, Gregory Chance, Armando Cova, Michael Milyard, John J. Parkes, Jr., Ashoke Ravi, Daniel Schwartz, Dong-Jun Yang
-
Publication number: 20210067163Abstract: A wireless communication device can include an antenna configured to sense a radio frequency (RF) signal. The wireless communication device can include signal estimation circuitry configured to generate estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include multi-tone generator circuitry coupled to the signal estimation circuitry and configured to generate a composite spur cancellation signal based on the estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include adder circuitry configured to subtract the spur cancellation signal from the RF signal to generate a spur cancelled signal.Type: ApplicationFiled: March 30, 2018Publication date: March 4, 2021Inventors: Niranjan Karandikar, Mohammed Alam, Gregory Chance, Armando Cova, Michael Milyard, John J. Parkes, JR., Ashoke Ravi, Daniel Schwartz, Dong-Jun Yang
-
Publication number: 20200358463Abstract: An apparatus of user equipment (UE) includes a radio integrated circuit (IC), an adjustable external low noise amplifier (eLNA) external to the radio IC, and processing circuitry. The radio IC includes a receive signal circuit path including an adjustable gain internal low noise amplifier (iLNA), and a transmit signal circuit path including a digital-to-analog converter (DAC) circuit configured to convert digital signals to analog baseband signals for transmitting. The processing circuitry is configured to provide digital values of the digital signals to the DAC circuit and initiate adjusting gain of one or both of the iLNA and the eLNA according to the digital values.Type: ApplicationFiled: March 30, 2018Publication date: November 12, 2020Inventors: Mohammed ALAM, David GRAHAM, Jorge IVONNET, Hasham KHUSHK, James Gregory MITTEL, John J. PARKES, JR.
-
Publication number: 20200321994Abstract: A wireless communication device can include an antenna array configured to receive a plurality of radio frequency (RF) signals, RF circuitry, and digital baseband receive circuitry. The RF circuitry is configured to process the plurality of RF signals received via the antenna array to generate a single RF signal. The digital baseband receive circuitry is coupled to the RF circuitry and is configured to generate a downconverted signal based on the single RF signal, amplify the downconverted signal to generate an amplified downconverted signal, and convert the amplified downconverted signal to generate a digital output signal for processing by a wireless modem. The digital baseband receive circuitry further includes at least a first filtering system configured to filter the downconverted signal prior to amplification.Type: ApplicationFiled: March 28, 2018Publication date: October 8, 2020Inventors: Mohammed Alam, Yiwen Chen, Ricardo Fernandez, John J. Parkes, JR., James Riches, Werner Schelmbauer, Daniel Schwartz, Michael David Vicker, Dong-Jun Yang
-
Publication number: 20190261679Abstract: A vaporizing device is provided for a vapor smoking device, includes a removable cartridge defining an internal cavity, and is configured to be disposed on the vapor smoking device. A plurality of porous granules is disposed within the internal cavity. The porous granules have a vaporizing liquid absorbed therein.Type: ApplicationFiled: February 28, 2019Publication date: August 29, 2019Inventor: Mohammed Alam AlShamma
-
Patent number: 9735894Abstract: A user equipment (UE), receiver and method are generally described herein. The UE may include a mixer, a local oscillator (LO) and an analog-to-digital converter (ADC). The mixer may downconvert a differential radio frequency (RF) signal using LO signals and provide downconverted signals to the ADC. The mixer may provide decoupled lowpass filtering. The lowpass filter capacitors may retain charge when discharging is completed. For each differential signal, the mixer may have an input pullup resistor, first switches receiving the signal and driven by different LO signals, second switches receiving signals from the first switches such that connected pairs of switches may have driven by different LO signals, an ADC input resistor, charging capacitors each connected between first switches driven by the same LO signal, and grounding capacitors each connected to second switches associated with different RF signal outputs and driven by different LO signals.Type: GrantFiled: March 23, 2015Date of Patent: August 15, 2017Assignee: Intel IP CorporationInventors: Mohammed Alam, Patrick Rakers
-
Publication number: 20160285567Abstract: A user equipment (UE), receiver and method are generally described herein. The UE may include a mixer, a local oscillator (LO) and an analog-to-digital converter (ADC). The mixer may downconvert a differential radio frequency (RF) signal using LO signals and provide downconverted signals to the ADC. The mixer may provide decoupled lowpass filtering. The lowpass filter capacitors may retain charge when discharging is completed. For each differential signal, the mixer may have an input pullup resistor, first switches receiving the signal and driven by different LO signals, second switches receiving signals from the first switches such that connected pairs of switches may have driven by different LO signals, an ADC input resistor, charging capacitors each connected between first switches driven by the same LO signal, and grounding capacitors each connected to second switches associated with different RF signal outputs and driven by different LO signals.Type: ApplicationFiled: March 23, 2015Publication date: September 29, 2016Inventors: Mohammed Alam, Patrick Rakers
-
Patent number: 8822450Abstract: Compounds of Formula (I), their preparation and use in preventing or treating bacterial infection is disclosed.Type: GrantFiled: August 24, 2012Date of Patent: September 2, 2014Assignee: Wockhardt Ltd.Inventors: Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Satish Bhawsar, Sachin Bhagwat, Mohammed Alam Jafri, Amit Mishra, Laxmikant Pavase, Sunil Gupta, Rajesh Kale, Sanjeev Joshi
-
Publication number: 20140148431Abstract: Compounds of Formula (I), their preparation and use in preventing or treating bacterial infection is disclosed.Type: ApplicationFiled: August 24, 2012Publication date: May 29, 2014Inventors: Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Satish Bhawsar, Sachin Bhagwat, Mohammed Alam Jafri, Amit Mishra, Laxmikant Pavase, Sunil Gupta, Rajesh Kale, Sanjeev Joshi
-
Publication number: 20070168745Abstract: An automated testing system is provided that includes a computer system, a handset, script and scripting interface, a test module, and a data comparison component. The handset has at least one application resident thereon to be tested. The handset is coupled to communicate with the computer system. The script executes on the computer system and is operable to generate an input to the application on the handset to test the application. The test module is embedded in a source code of the application. The test module is operable to monitor a response by the application to the input by the script. The data comparison component compares the response by the application monitored by the test module to an expected response.Type: ApplicationFiled: November 29, 2005Publication date: July 19, 2007Inventors: Mohammed Alam, Alexander Grabovsky, Sergiy Glushchak, Serge Spraiter, Nachiket Acharya, Madhu Gottumukkala, Maxim Ostrooukhov, Neeraj Tomar
-
Publication number: 20060223487Abstract: A multi-band high gain mixer and quadrature signal generator allows a receiver system to receive signals at multiple frequency bands without requiring significant hardware duplication. A single mixer directly receives any of three communication frequency bands such as Universal Mobile Telecommunication System (UMTS), Personal Communication Services (PCS), Digital Communication System (DCS), and Japan and US W-CDMA 800 bands without amplification. A Serial-Parallel Interface selectably forwards RF signals within the receiver's frequency channels to the mixer for demodulation into in-phase (I) and quadrature (Q) signals at a common IF output from the multi-mode receiver. Significant power and cost advantages are attained by elimination of duplicate mixers and amplifier stages.Type: ApplicationFiled: April 4, 2005Publication date: October 5, 2006Inventors: Mohammed Alam, Daniel Kaczman
-
Publication number: 20060065386Abstract: A self-actuating and self regulation heat exchange system comprising: evaporator 16, condenser 34, bladder sub-system 42, phase-change fluid 24 and connecting tubes, is a device and an apparatus useful to transport thermal energy from a relatively hot zone to a relatively cold zone, over distance, and around or through obstructions. The bladder sub system, consisting of an expandable bladder and two one-way check-valves, utilizes the pressure difference in the system created during evaporation and condensation to make the phase-change fluid circulate inside the closed loop system, transferring thermal energy from evaporator to condenser. The operation of the device is self started, self regulated and the device is almost independent of gravity, and the orientation.Type: ApplicationFiled: August 1, 2005Publication date: March 30, 2006Inventor: Mohammed Alam