Patents by Inventor Reza Mahmoodi
Reza Mahmoodi 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: 20240086347Abstract: Systems and methods disclosed herein provide for an improved termination leg unit design and method of trimming impedance thereof, which provides for improved impedance matching for process variations, along with variations in temperature and voltage. Example implementation provide for a leg unit circuit design that includes a first circuit compensating for temperature and voltage variations and a second circuit, connected in series with the first circuit, compensating for process variations. Furthermore, disclosed herein is ZQ calibration method that provides for calibrating of the impedance of each of an on-die termination, a pull-up driver, and a pull-down driver using a single calibration circuit.Type: ApplicationFiled: September 9, 2022Publication date: March 14, 2024Inventors: MOHAMMAD REZA MAHMOODI, MARTIN LUEKER-BODEN
-
Publication number: 20240077902Abstract: Systems and methods are provided for generating a stable reference current that has low sensitivity to operating temperature and supply voltage variations and is stable across process corners. In an example implementation, an improved reference current generator circuit is provided that includes a first circuit generating a first current that is proportional to absolute temperature and a second circuit generating a second current that is complementary to absolute temperature based on first transistors operating in respective triode regions. The second current compensates for process, voltage, and temperature variations in the first current at a node. According to some examples, the second current is also generated based on second transistors operating in respective saturation regions. The first current may be generated using a forward biased PN junction diode.Type: ApplicationFiled: September 6, 2022Publication date: March 7, 2024Inventors: MOHAMMAD REZA MAHMOODI, MARTIN LUEKER-BODEN
-
Publication number: 20240077903Abstract: Systems and methods are provided for generating a stable DC reference voltage that has low sensitivity to operating temperature and supply voltage variations and is stable across process corners using complimentary metal-on-semiconductor field-effect transistors (MOSFETS). In an example implementation, a reference voltage generator circuit is provided that includes complimentary MOSFETs including a first complimentary MOSFET connected to a first node and having a first threshold voltage, and a second complimentary MOSFET connected to a second node and having a second threshold voltage that is greater than the first threshold voltage. The reference voltage generator circuit feeds the first node a first current based on mirroring a second current at the second node and outputs a stable DC reference voltage based on the first and second complimentary MOSFETs and configured operating in respective saturation regions.Type: ApplicationFiled: September 6, 2022Publication date: March 7, 2024Inventors: MOHAMMAD REZA MAHMOODI, Martin Lueker-Boden
-
Patent number: 11176782Abstract: A device communicates with a scanner, such as a barcode scanner in a retail environment, and with a point-of-sale (POS) register. The device can process different types of machine-readable codes, such as scanned UPCs and unique barcodes associated with individual scratcher cards and/or other items. Data captured by the scanner passes through the device before reaching the POS register; such data may be selectively retransmitted (with or without modification) to the POS register and/or to a server or other device, or it may be blocked from reaching the POS register, server, and/or other device, depending on the current mode of operation. For example, the device can selectively relay some information (such as UPC data) to the POS register to process sales transactions, and/or can relay other information (such as unique barcode data) to server(s) to perform inventory tracking functions, while blocking such unique barcode data from reaching the POS register.Type: GrantFiled: September 10, 2020Date of Patent: November 16, 2021Assignee: OneFabric TechnologiesInventor: Reza Mahmoodi
-
Patent number: 11061336Abstract: A device manufacturing method includes: exposing a first substrate using a lithographic apparatus to form a patterned layer having first features; processing the first substrate to transfer the first features into the first substrate; determining displacements of the first features from their nominal positions in the first substrate; determining a correction to at least partly compensate for the displacements; and exposing a second substrate using a lithographic apparatus to form a patterned layer having the first features, wherein the correction is applied for or during the exposing the second substrate.Type: GrantFiled: March 28, 2018Date of Patent: July 13, 2021Assignee: ASML Netherlands B.V.Inventors: Hubertus Johannes Gertrudus Simons, Everhardus Cornelis Mos, Xiuhong Wei, Reza Mahmoodi Baram, Hadi Yagubizade, Yichen Zhang
-
Publication number: 20210104115Abstract: A device communicates with a scanner, such as a barcode scanner in a retail environment, and with a point-of-sale (POS) register. The device can process different types of machine-readable codes, such as scanned UPCs and unique barcodes associated with individual scratcher cards and/or other items. Data captured by the scanner passes through the device before reaching the POS register; such data may be selectively retransmitted (with or without modification) to the POS register and/or to a server or other device, or it may be blocked from reaching the POS register, server, and/or other device, depending on the current mode of operation. For example, the device can selectively relay some information (such as UPC data) to the POS register to process sales transactions, and/or can relay other information (such as unique barcode data) to server(s) to perform inventory tracking functions, while blocking such unique barcode data from reaching the POS register.Type: ApplicationFiled: September 10, 2020Publication date: April 8, 2021Inventor: Reza Mahmoodi
-
Publication number: 20210075023Abstract: Flexible air-breathing microscale fuel cells are produced using ion exchange polymer membranes without silicon substrates or other rigid components. The microscale fuel cells provide long-life energy supply sources in portable electronics due to reduced volume, high energy density, and low cost. More particularly, the microscale fuel cell has a direct hydrogen flow-through porous anode electrode with a pair of air-breathing cathodes.Type: ApplicationFiled: November 20, 2020Publication date: March 11, 2021Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Ronald Besser, Seyed Reza Mahmoodi
-
Publication number: 20210019609Abstract: Building blocks for implementing Vector-by-Matrix Multiplication (VMM) are implemented with analog circuitry including non-volatile memory devices (flash transistors) and using in-memory computation. In one example, improved performance and more accurate VMM is achieved in arrays including multi-gate flash transistors when computation uses a control gate or the combination of control gate and word line (instead of using the word line alone). In another example, very fast weight programming of the arrays is achieved using a novel programming protocol. In yet another example, higher density and faster array programming is achieved when the gate(s) responsible for erasing devices, or the source line, are re-routed across different rows, e.g., in a zigzag form. In yet another embodiment a neural network is provided with nonlinear synaptic weights implemented with nonvolatile memory devices.Type: ApplicationFiled: April 27, 2018Publication date: January 21, 2021Applicant: The Regents of the University of CaliforniaInventors: Dmitri Strukov, Farnood Merrikh Bayat, Mohammad Bavandpour, Mohammad Reza Mahmoodi, Xinjie Guo
-
Patent number: 10847807Abstract: Flexible air-breathing microscale fuel cells are produced using ion exchange polymer membranes without silicon substrates or other rigid components. The microscale fuel cells provide long-life energy supply sources in portable electronics due to reduced volume, high energy density, and low cost. More particularly, the microscale fuel cell has a direct hydrogen flow-through porous anode electrode with a pair of air-breathing cathodes.Type: GrantFiled: November 15, 2017Date of Patent: November 24, 2020Assignee: The Trustees of the Stevens Institute of TechnologyInventors: Ronald Besser, Seyed Reza Mahmoodi
-
Patent number: 10812084Abstract: A security primitive for an integrated circuit comprises an array of floating-gate transistors monolithically integrated into the integrated circuit and coupled to one another in a crossbar configuration. The floating-gate transistors have instance-specific process-induced variations in analog behavior to provide one or more reconfigurable physically unclonable functions (PUFs).Type: GrantFiled: November 6, 2019Date of Patent: October 20, 2020Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Dmitri Strukov, Hussein Nili Ahmadabadi, Mohammad Reza Mahmoodi, Zahra Fahimi
-
Publication number: 20200145008Abstract: A security primitive for an integrated circuit comprises an array of floating-gate transistors monolithically integrated into the integrated circuit and coupled to one another in a crossbar configuration. The floating-gate transistors have instance-specific process-induced variations in analog behavior to provide one or more reconfigurable physically unclonable functions (PUFs).Type: ApplicationFiled: November 6, 2019Publication date: May 7, 2020Inventors: Dmitri Strukov, Hussein Nili Ahmadabadi, Mohammad Reza Mahmoodi, Zahra Fahimi
-
Publication number: 20200081353Abstract: A device manufacturing method includes: exposing a first substrate using a lithographic apparatus to form a patterned layer having first features; processing the first substrate to transfer the first features into the first substrate; determining displacements of the first features from their nominal positions in the first substrate; determining a correction to at least partly compensate for the displacements; and exposing a second substrate using a lithographic apparatus to form a patterned layer having the first features, wherein the correction is applied for or during the exposing the second substrate.Type: ApplicationFiled: March 28, 2018Publication date: March 12, 2020Applicant: ASML NETHERLANDS B.V.Inventors: Hubertus Johannes Gertrudus SIMONS, Everhardus Cornelis MOS, Xiuhong WEI, Reza MAHMOODI BARAM, Hadi YAGUBIZADE, Yichen ZHANG
-
Publication number: 20180138516Abstract: Flexible air-breathing microscale fuel cells are produced using ion exchange polymer membranes without silicon substrates or other rigid components. The microscale fuel cells provide long-life energy supply sources in portable electronics due to reduced volume, high energy density, and low cost. More particularly, the microscale fuel cell has a direct hydrogen flow-through porous anode electrode with a pair of air-breathing cathodes.Type: ApplicationFiled: November 15, 2017Publication date: May 17, 2018Inventors: Ronald Besser, Seyed Reza Mahmoodi
-
Publication number: 20140346357Abstract: A photoconductive device that includes a semiconductor substrate, an antenna assembly, and a photoconductive assembly with one or more plasmonic contact electrodes. The photoconductive assembly can be provided with plasmonic contact electrodes that are arranged on the semiconductor substrate in a manner that improves the quantum efficiency of the photoconductive device by plasmonically enhancing the pump absorption into the photo-absorbing regions of semiconductor substrate. In one exemplary embodiment, the photoconductive device is arranged as a photoconductive source and is pumped at telecom pump wavelengths (e.g., 1.0-1.6 ?m) and produces milliwatt-range power levels in the terahertz (THz) frequency range.Type: ApplicationFiled: January 23, 2013Publication date: November 27, 2014Inventors: Mona Jarrahi, Christopher W. Berry, Ning Wang, Shang-Hua Yang, Mohammed Reza Mahmoodi Hashemi