Patents Assigned to Sharif University of Technologies
  • Publication number: 20240086154
    Abstract: A logic circuit for anti-circular shift-and-add multiplication of an input vector and a binary vector. The logic circuit includes a plurality of input array pairs, a plurality of shift-and-add units, and an output datapath. A shift-and-add unit of the plurality of shift-and-add units is configured to generate a shift-and-add output of a plurality of shift-and-add outputs from an input array pair of the plurality of input array pairs at each clock cycle of the logic circuit. The output datapath is configured to generate an output vector by merging the plurality of shift-and-add outputs into the output vector. The output vector includes a segment of a multiplication result of the input vector and the binary vector.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Applicant: Sharif University of Technology
    Inventors: Siavash Bayat-sarmadi, Shahriar Hadayeghparast, Shahriar Ebrahimi
  • Patent number: 11923612
    Abstract: An antenna comprises a substantially circular ground plane with an upper surface and a defined center. A plurality of radiating elements are placed radially on the upper surface, arranged at constant angles around the defined center to, when electrically excited, create a plurality of circularly polarized electromagnetic emissions. Each radiating element of the plurality of radiating elements is in electrical communication with an electromagnetic source via an electrically conductive feed, the electromagnetic source configured, when in use, to create a radial excitation current on the radiating element, and further configured, when in use, to provide phase and amplitude control of the excited current on the radiating element for both beam forming and 360 degree beam steering by superposing omnidirectional circularly polarized electromagnetic emissions.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: March 5, 2024
    Assignee: Sharif University of Technology
    Inventors: Fatemeh Akbar, Behzad Yektakhah
  • Patent number: 11887279
    Abstract: A method for denoising an image. The method includes training a fully convolutional neural network (FCN) and generating a reconstructed image by applying the FCN on the image. Training the FCN includes generating an nth training image of a plurality of training images, initializing the FCN with a plurality of initial weights, and repeating a first iterative process. The nth training image includes a training array In. The first iterative process includes extracting an nth denoised training image from the FCN, generating a plurality of updated weights, and replacing the plurality of initial weights with the plurality of updated weights. The nth denoised training image may be extracted by applying the FCN on the nth training image. In an exemplary embodiment, the nth denoised training image may include a denoised array În. The plurality of updated weights is generated by minimizing a loss function including ?n=1N|In?În|.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: January 30, 2024
    Assignee: SHARIF UNIVERSITY OF TECHNOLOGY
    Inventors: Seyedeh Sahar Sadrizadeh, Hatef Otroshi Shahreza, Farokh Marvasti
  • Publication number: 20240028379
    Abstract: A method for cache management in a hyperconverged infrastructure (HCI). The HCI includes a plurality of physical nodes (PNs). The method includes receiving a primary plurality of input/output (I/O) requests at a plurality of virtual machines (VMs), allocating a plurality of local caches (LCs) and a plurality of remote caches (RCs) to the plurality of VMs, receiving a secondary plurality of I/O requests at the plurality of VMs, and serving the secondary plurality of I/O requests. Each of the plurality of VMs runs on a respective corresponding PN of the plurality of PNs. The plurality of LCs and the plurality of RCs are allocated based on the primary plurality of I/O requests. The secondary plurality of I/O requests is served based on the plurality of LCs and the plurality of RCs.
    Type: Application
    Filed: July 25, 2023
    Publication date: January 25, 2024
    Applicants: High Performance Data Storage, Sharif University of Technology
    Inventors: Hossein Asadi, Mostafa Kishani Farahani, Saba Ahmadian Khameneh, Sina Ahmadi
  • Publication number: 20240003437
    Abstract: A pilot operated hydraulic directional control valve. The hydraulic directional control valve comprises a valve body, a spool, a spring and a control piston. The valve body comprises four top ports and four bottom ports. When a spring force which is applied to a first end of the spool is less than a piston force which is applied to a second end of the spool, the hydraulic directional control valve is in working position. When the spring force is greater than the piston force, the hydraulic directional control valve is in shutdown position.
    Type: Application
    Filed: July 4, 2023
    Publication date: January 4, 2024
    Applicants: Durali System Design & Automation Co., Sharif University of Technology
    Inventors: Mohammad Durali, Parastoo Ebrahimi, Maryam Sharifzadeh, Alireza Alem Rajabi, Seyed Mahdi Hosseini
  • Publication number: 20240003264
    Abstract: A system for calibrating the trip speed of a mechanical overspeed sensing device by manipulating the compression of a spring of the overspeed sensing device. The system may include a rotatable annular mount, on which the mechanical overspeed sensing device is mounted and a trip sensor. The system may drive a rotational movement of the annular mount with a varying speed over time during a test run. The system may designate a rotational speed of the annular device at which the trip sensor is struck by the mechanical overspeed sensing device as a measure trip speed. The measured trip speeds may be determined for various compressions of the spring of an exemplary mechanical overspeed sensing device and based on a desired tripping speed received from a user, a compression value of the spring may be selected for which the closest measured tripping speed to the desired tripping speed is obtained.
    Type: Application
    Filed: July 4, 2023
    Publication date: January 4, 2024
    Applicants: Durali System Design & Automation Co., Sharif University of Technology
    Inventors: Mohammad Durali, Mohammad Hossein Heydari, Amir Mahdi Soufi Enayati, Seyed Mahdi Hosseini
  • Publication number: 20240005071
    Abstract: A system for performing hardware-in-the-loop test of a turbine governor. The system includes a hydropower plant simulation subsystem and a signal interface. The hydropower plant simulation subsystem allows for simulating dynamic and kinematic behaviors of components of a hydropower plant. The hydropower plant simulation subsystem includes a memory having processor-readable instructions stored therein and a processor that accesses the memory and executes the processor-readable instructions, which, when executed by the processor configure the processor to perform a method. The method includes generating a plurality of output signals by solving mathematical models of the components of the hydropower plant for a plurality of inputs. The signal interface allows for communicating the plurality of output signals from the hydropower plant simulation subsystem to the turbine governor.
    Type: Application
    Filed: July 5, 2023
    Publication date: January 4, 2024
    Applicants: Durali System Design & Automation Co., Sharif University of Technology
    Inventors: Mohammad Durali, Seyed Mahdi Hosseini, Mohammad Reza Dehghani, Mahdi Eskandari, Ali Ghorbanpour
  • Publication number: 20230395996
    Abstract: An antenna comprises a substantially circular ground plane with an upper surface and a defined center. A plurality of radiating elements are placed radially on the upper surface, arranged at constant angles around the defined center to, when electrically excited, create a plurality of circularly polarized electromagnetic emissions. Each radiating element of the plurality of radiating elements is in electrical communication with an electromagnetic source via an electrically conductive feed, the electromagnetic source configured, when in use, to create a radial excitation current on the radiating element, and further configured, when in use, to provide phase and amplitude control of the excited current on the radiating element for both beam forming and 360 degree beam steering by superposing omnidirectional circularly polarized electromagnetic emissions.
    Type: Application
    Filed: June 2, 2022
    Publication date: December 7, 2023
    Applicant: Sharif University of Technology
    Inventors: Fatemeh Akbar, Behzad Yektakhah
  • Publication number: 20230395997
    Abstract: An antenna comprises a substantially circular ground plane with an upper surface and a defined center. A plurality of radiating elements are placed radially on the upper surface, arranged at constant angles around the defined center to, when electrically excited, create a plurality of circularly polarized electromagnetic emissions. Each radiating element of the plurality of radiating elements is in electrical communication with an electromagnetic source via an electrically conductive feed, the electromagnetic source configured, when in use, to create a radial excitation current on the radiating element, and further configured, when in use, to provide phase and amplitude control of the excited current on the radiating element for both beam forming and 360 degree beam steering by superposing omnidirectional circularly polarized electromagnetic emissions.
    Type: Application
    Filed: August 9, 2023
    Publication date: December 7, 2023
    Applicant: Sharif University of Technology
    Inventors: Fatemeh Akbar, Behzad Yektakhah
  • Publication number: 20230160498
    Abstract: A system for transporting equipment and individuals within a conduit and/or a pipeline. The system includes a ground floor, a first floor, a connecting rod, an ovality compensation mechanism, a couple of holding arms at a top end of the system, and a winch. The ground floor and the first floor are configured to receive and keep an operator onto them. The ovality compensation mechanism is attached to a lower side of the first floor by utilizing a couple of connecting chains. The ovality compensation mechanism is configured to increase a diameter of a pipe segment of the pipeline.
    Type: Application
    Filed: January 23, 2023
    Publication date: May 25, 2023
    Applicants: Durali System Design & Automation Co., Sharif University of Technology Sharif University of Technology Sharif University of Technology
    Inventors: Amin Jamalimehr, Mohamad Ali Soleimani, Ashkan Sohbatloo, Farshad Fadakar Kourkah, Seyd Hossein Mousavi, Saed Khansari, Mohammad Durali
  • Publication number: 20230103227
    Abstract: Disclosed herein is an axial flux motor. The axial flux motor includes a rotating shaft, a rotor assembly, and a stator assembly. The rotor assembly includes a rotor disc, a plurality of rotor disc teeth provided on a first side of the rotor disc, and a cage. The stator assembly includes a stator base, a plurality of electromagnet assemblies, a supporting plate, and a bearing housing. An electromagnet assembly from the plurality of electromagnet assemblies comprising a core, a first fixture, a second fixture, a coil winding, and a couple of connecting screws. The yoke is configured to be secured between the first fixture and the second fixture.
    Type: Application
    Filed: December 6, 2022
    Publication date: March 30, 2023
    Applicants: Durali System Design & Automation Co., Sharif University of Technology
    Inventors: Mohammad Durali, Ali Nickandish
  • Patent number: 11566419
    Abstract: A method for changing acoustics of a performance space may include mounting a plurality of panel assemblies to a ceiling or a portion of a ceiling of the performance space. Each panel assembly of the plurality of panel assemblies may include one or more acoustic panels. The exemplary method may further include changing a distance of the one or more acoustic panels of each panel assembly of the plurality of panel assemblies from the ceiling by coupling the one or more acoustic panels of each panel assembly of the plurality of panel assemblies with a first actuating mechanism, and actuating a linear vertical movement of the one or more acoustic panels of each panel assembly of the plurality of panel assemblies along a first axis perpendicular to the ceiling utilizing the first actuating mechanism.
    Type: Grant
    Filed: June 9, 2019
    Date of Patent: January 31, 2023
    Assignees: DURALI SYSTEM DESIGN & AUTOMATION CO., SHARIF UNIVERSITY OF TECHNOLOGY
    Inventors: Mohammad Durali, Mohamad Ali soleimani, Farhad Fallah Shabani, Alireza Habibollahi, Ashkan Sohbatloo, Amir Mehdi Soufi Enayati
  • Patent number: 11566126
    Abstract: A polymeric composition for enhancing grip, including a modified solvent phase and a solid phase dispersed within the modified solvent phase. The modified solvent phase may include calcium-based gel, including calcium acetate particles partially dissolved in an alcoholic solution. The solid phase also includes a polymeric matrix and a plurality of desiccant particles encompassed by the polymeric matrix. The polymeric matrix includes polyvinyl acetate (PVAc) and a thickener.
    Type: Grant
    Filed: March 20, 2021
    Date of Patent: January 31, 2023
    Assignee: SHARIF UNIVERSITY OF TECHNOLOGY
    Inventors: Mina Bagherifard Sharabiani, Zeinab Sadat Ziabakhsh, Ali Pourjavadi
  • Publication number: 20220405372
    Abstract: A logic circuit for biometric authentication based on learning parity with noise. The logic circuit includes a sensor. The sensor is configured to acquire a biometric signal. The logic circuit is configured to generate a response signal from the biometric signal by implementing a finite state machine (FSM).
    Type: Application
    Filed: August 23, 2022
    Publication date: December 22, 2022
    Applicant: Sharif University of Technology
    Inventors: Siavash Bayat-Sarmadi, Shahriar Ebrahimi
  • Publication number: 20220381745
    Abstract: A method for super-resolution photoacoustic microscopy of an object. The method includes optically exciting the object according to a plurality of excitation patterns utilizing a digital micromirror device (DMD), receiving a plurality of acoustic waves propagated from the object due to optically exciting the object, reconstructing each of a plurality of photoacoustic (PA) images from a respective acoustic wave of the plurality of acoustic waves, and obtaining a super-resolution PA image of the object from the plurality of PA images by applying a frequency domain reconstruction method to the plurality of PA images. Each of the plurality of acoustic waves are associated with a respective excitation pattern of the plurality of excitation patterns.
    Type: Application
    Filed: August 6, 2022
    Publication date: December 1, 2022
    Applicant: Sharif University of Technology
    Inventors: Mohammadreza Amjadian, Seyed Masood Mostafavi, Zahra Kavehvash
  • Patent number: 11435283
    Abstract: A method for optically detecting mutations in a sequence of DNA is disclosed. The method includes generating an optically coded input sequence by optically coding an input sequence, generating an optically coded reference sequence by optically coding a reference sequence, generating an aligned sequence by overlapping the optically coded input sequence with the optically coded reference sequence, and determining a mutation in the input sequence with respect to the reference sequence. The input sequence includes an input arrangement of a plurality of elements. Each of the plurality of elements includes an element value of a plurality of element values. The reference sequence includes a reference arrangement of the plurality of elements. Each element of the aligned sequence includes one of a low-value element or a high-value element. The mutation is determined responsive to detecting the low-value element in the aligned sequence.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: September 6, 2022
    Assignee: SHARIF UNIVERSITY OF TECHNOLOGY
    Inventors: Somayyeh Koohi, Zahra Kavehvash, Ehsan Maleki, Hossein Babashah
  • Patent number: 11370014
    Abstract: A method and apparatus for passive pin positioning of a reconfigurable forming die is disclosed. The apparatus may include a plurality of pins disposed within a frame, and a bolt that when tightened can secure or lock the pins into position. When the bolt is loosened, the position of the pins can be adjusted. A preliminary model of a contoured surface that is to be imparted to an article by the reconfigurable forming die can be used to help define a forming surface of the reconfigurable die.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 28, 2022
    Assignee: SHARIF UNIVERSITY OF TECHNOLOGY
    Inventors: Behnam Gomari, Farzam Farahmand, Hassan Farkhondeh
  • Patent number: 11343241
    Abstract: A method for multi-connectivity communication in an application layer of a communication network. The method includes generating a plurality of decision elements and repeating a first iterative process. An ith iteration of the first iterative process includes generating an ith transmit message set by executing an application, transmitting the ith transmit message set from a transmitter to a receiver, receiving an ith receive message set of a plurality of receive message sets, and updating the plurality of decision elements. The ith transmit message set is transmitted over a plurality of networks. The ith transmit message set is transmitted based on the plurality of decision elements. Each transmit message in the ith transmit message set is associated with at least one respective network of the plurality of networks. The plurality of decision elements are updated based on a jth receive message set in the plurality of receive message sets.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: May 24, 2022
    Assignees: SHARIF UNIVERSITY OF TECHNOLOGY, MOBILE TELECOMMUNICATION COMPANY OF IRAN (MCI)
    Inventors: Azad Ravanshid, Alireza Mohammadi, Ali Farahbakhsh, Niusha Moshrefi, Babak Hosein Khalaj
  • Patent number: 11308598
    Abstract: A method for quality assessment of an image. The method includes generating an (i+1)th plurality of feature maps from an image, obtaining an (i+1)th feature set of a plurality of feature sets from the (i+1)th plurality of feature maps, and extracting a score distribution for a plurality of scores from the plurality of feature sets. The plurality of scores are associated with the image. The score distribution is extracted by feeding the plurality of feature sets to a first (1st) fully connected layer of a plurality of fully connected layers. The plurality of fully connected layers are associated with a convolutional neural network.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: April 19, 2022
    Assignee: SHARIF UNIVERSITY OF TECHNOLOGY
    Inventors: Hatef Otroshi Shahreza, Arash Amini, Hamid Behroozi
  • Patent number: 11287721
    Abstract: A method for reconfigurable optical signal processing. The method includes generating a first pump pulse by propagating a first input pump through a first dispersive medium, generating a first modulated signal by applying a parametric nonlinear wave mixing process on an input optical signal and the first pump pulse, generating a first transformed signal of the input optical signal by propagating the first modulated signal through a second dispersive medium, generating a multiplied signal by multiplying the first transformed signal by a Green's function, generating a second pump pulse by propagating a second input pump through a third dispersive medium, generating a second modulated signal by applying the parametric nonlinear wave mixing process on the multiplied signal utilizing the second pump pulse, and generating a second transformed signal of the multiplied signal by propagating the second modulated signal through a fourth dispersive medium.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: March 29, 2022
    Assignee: SHARIF UNIVERSITY OF TECHNOLOGY
    Inventors: Zahra Kavehvash, Somayyeh Koohi, Hossein Babashah