Patents Assigned to ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
  • Publication number: 20200202176
    Abstract: A method for learning deep convolutional features specifically designed for correlation filter based visual tracking includes the steps of, selecting a first image from a first image patch; selecting a second image from a second image patch; forward propagating selected first image by a convolutional neural network model formula, the formula has random weights with zero mean for the parameters; forward propagating selected second image by the convolutional neural network model formula; computing correlation filter using forward propagated second image and centered correlation response; circularly correlating forward propagated first image and computed correlation filter to generate predicted response map; calculating the loss by comparing the predicted response map with desired correlation corresponding selected first image and second image and updating the parameters of the convolutional neural network model formula according to calculated loss.
    Type: Application
    Filed: May 12, 2017
    Publication date: June 25, 2020
    Applicants: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI, ORTA DOGU TEKNIK UNIVERSITESI
    Inventors: Erhan GUNDOGDU, Abdullah Aydin ALATAN
  • Publication number: 20200162292
    Abstract: An all digital outphasing transmitter includes, at least one decomposition unit for decomposing an input signal to generate a first sub-signal and a second sub-signal; at least one outphasing signal generator to convert said first sub-signal to an outphasing signal; at least one delta sigma modulator to convert said second sub-signal to a delta sigma modulated signal; at least one mixing unit for mixing the outphasing signal and delta sigma modulated signal to generate a first and second mixed signal; at least one first amplifier for amplifying the first mixed signal; at least one second amplifier for amplifying the second mixed signal; at least one combiner for combining the first and second amplified mixed signals to generate a delta sigma modulated output signal and at least one band pass filter for filtering the delta sigma modulated output signal to recover the input signal envelope back on to the output signal.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 21, 2020
    Applicant: ASELSAN ELEKTRONÍK SANAYI VE TICARET ANONIM SIRKETI
    Inventor: Bulent SEN
  • Patent number: 10652057
    Abstract: An all digital outphasing transmitter includes, at least one decomposition unit for decomposing an input signal to generate a first sub-signal and a second sub-signal; at least one outphasing signal generator to convert said first sub-signal to an outphasing signal; at least one delta sigma modulator to convert said second sub-signal to a delta sigma modulated signal; at least one mixing unit for mixing the outphasing signal and delta sigma modulated signal to generate a first and second mixed signal; at least one first amplifier for amplifying the first mixed signal; at least one second amplifier for amplifying the second mixed signal; at least one combiner for combining the first and second amplified mixed signals to generate a delta sigma modulated output signal and at least one band pass filter for filtering the delta sigma modulated output signal to recover the input signal envelope back on to the output signal.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: May 12, 2020
    Assignee: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventor: Bulent Sen
  • Patent number: 10637120
    Abstract: A phase shifter capable of withstanding very high average RF power, which enables directing of the beam in radar systems, it includes a waveguide, a ferrite toroid, composite dielectric plate including a dielectric plate in high thermal conductivity and a dielectric plate with the high dielectric constant, which increases the amount of phase shift per the unit length by directing the electric field and the transfer of heat generated on the ferrite toroids to the waveguide, a twin-toroid ferrite-dielectric structure including a combination of ferrite toroids and composite dielectric plates.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 28, 2020
    Assignee: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventor: Hakki Ilhan Altan
  • Patent number: 10637119
    Abstract: A reduced size phase shifter provides the orientation of the microwave beams. The phase shifter includes RF connector (4) that provides the entrance of the coaxial transmission line (8) into the phase shifter (1), dielectric plate (7) with high dielectric constant that provides the gradual transformation of the quasi TEM mode carried by means of the micro-strip transmission line (6) into TE10 mode carried on the twin-toroid structure (5).
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 28, 2020
    Assignee: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Hakki Ilhan Altan, Remzi Köksal
  • Publication number: 20200118910
    Abstract: A chip structure, suitable to be used in radar applications includes, at least one gallium based first layer to perform RF applications; at least one gallium based second layer, placed on the first layer, to perform digital applications; at least two copper based pillars located between the first layer and the second layer, which provide electrical connection between the first layer and second layer and which ensure that there is a safe distance between the first layer and second layer.
    Type: Application
    Filed: January 30, 2018
    Publication date: April 16, 2020
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Ahmet AKTUG, Murat Erdal DAGDELEN
  • Publication number: 20200091872
    Abstract: An active limiting system that is suitable to protect a low noise amplifier against the high power signals received from a signal input includes, at least one first switch, source of which is connected to a gate voltage; at least first resistor which is connected between the gate and source of the first switch; at least one second resistor, which is connected between a drain voltage and drain of the first switch; at least one second switch, source of which is connected to said drain voltage and drain of which is connected to a signal input; at least one third resistor which is connected between the drain of the first switch and gate of the second switch; at least one first filtering element, which blocks DC currents/voltages and which is connected between the source of the second switch and ground.
    Type: Application
    Filed: December 4, 2017
    Publication date: March 19, 2020
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Ahmet AKTUG, Cagdas YAGBASAN
  • Patent number: 10581556
    Abstract: An uplink multiple access method based on the user-specific frozen bit patterns of polar codes assigned to users and relevant transmitter-receiver embodiments. The method includes encoding the information bits with a polar encoder by using the binary-valued, user-specific frozen bit patterns in frozen bit locations during encoding operation. The method further includes mapping of coded bits with symbols to be transmitted and baseband-to-RF processing performed on the symbol sequence. The generated signals of each user are transmitted by using the same time-frequency resources. The method further includes to receive the superposed signal of multiple users transmitted by means of relevant uplink radio channels. The method further includes an RF-to-baseband conversion on the received signal and detecting and decoding each user data by using an interference cancellation multiuser detector and a polar decoder that uses binary-valued pattern sequences assigned to the users in the frozen bit locations.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: March 3, 2020
    Assignee: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Onur D{dot over (i)}zdar, Çağri Göken, Alptek{dot over (i)}n Yilmaz
  • Publication number: 20200067203
    Abstract: An antenna array having wide frequency band, broad scanning volume and high polarization purity. The antenna array includes a ground plane (2), at least two antenna elements (1) located opposite to each other on the ground plane (2), at least one protrusion (4) located between the at least two antenna elements (1) and extending outward from the plane (2).
    Type: Application
    Filed: December 6, 2018
    Publication date: February 27, 2020
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Mert KALFA, Erhan HALAVUT, Hilal HILYE CANBEY
  • Publication number: 20200049947
    Abstract: A method for optimizing focus of an optical system passively fundamentally includes the following steps: discretizing optical positions (focus distances) with respect to precision requirements; initializing an idle counter to zero, going to the initial optical position, initializing a best position to current position, clearing a sharpness array; calculating correspondence in 2-tuple format; adding a sharpness value to a sharpness array; calculating a longest increasing subsequence on the sharpness array; checking if the longest increasing subsequence length increases; clearing the idle counter; setting the best position to the current position; incrementing the idle counter; checking if the termination threshold is reached; checking if the current position corresponds to the end of discrete optical positions if the termination threshold is not reached; driving motors to the next position; optionally improving the best position; going to the best position and terminating the method.
    Type: Application
    Filed: May 25, 2016
    Publication date: February 13, 2020
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Erkan OKUYAN, Murat GEVREKCI, Berk ULKER, Cevdet AYKANAT
  • Publication number: 20200029157
    Abstract: A method for acoustic detection of shooter location includes the following steps: receiving acoustic signals by a microphone array; detecting muzzle blast (MB) and shock wave (SW) signals through matched filter and cross correlation processes; transforming the detected MB and SW signals from time domain into frequency domain; beamforming the signals by means of the Delay and Sum method in frequency domain; estimating the direction of arrival (DOA) for the MB and SW signals by finding the azimuth and elevation which give the maximum power of the beamforming response; performing range estimation using the difference between the arrival time of the MB and SW signals together with the DOA estimations.
    Type: Application
    Filed: December 26, 2018
    Publication date: January 23, 2020
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: ALPER BEREKETLI, SINAN AVSAR, EMIR DOGAN, MEHMET DONUS
  • Publication number: 20200014088
    Abstract: A foldable antenna system particularly suitable for use in a radar system includes a first antenna and a second antenna providing signaling; a body part; at least an actuator connected to the body part; a first connection element; a second connection element configured to connect the second antenna to the first antenna; a third connection element movably connected to the first antenna and a carriage part fixing the actuator to a surface. One end of the first connection element is movably connected to the body part distal from the actuator and a second end is connected to the first antenna.
    Type: Application
    Filed: October 24, 2018
    Publication date: January 9, 2020
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Hunkar Kemal YURT, Ekrem FIRTINAOGLU, Ismail GULER
  • Patent number: 10531521
    Abstract: A heater circuit track pattern designed to be coated on a heater plate in order to achieve high uniform heat distribution and fast heating up, low power consumption and prevent current crowding with high fill factor. The heater plate includes a substrate layer which is an electrically insulative, highly thermally conductive, low heat capacity substrate where the heater circuit track pattern has a conductive layer and a resistive layer. The conductive layer has conductive parts such that power pads, main power lines, electrical transfer pads, sub-conductor lines are formed by a highly conductive material to distribute power equally to the resistive layer. The resistive layer has resistive portions including resistive parts formed by a resistive ink to heat up the heater plate.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: January 7, 2020
    Assignee: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Nuri Gokhan Korkusuz, Birce Gulec Boyaci
  • Publication number: 20190348741
    Abstract: An RF crossover apparatus provides low transmission and return losses for microwave systems and meets the requirement for the RF signals to leap over each other as in an insulated state. The RF crossover apparatus contains a body produced from ceramic material, at least two RF strips placed inside the body in a way to intersect each other and at least one insulation layer insulating the RF strips placed on the body at least from the external environment. The body produced from ceramic material enables operation on high frequencies and this provides low transmission and return losses. The RF crossover apparatus also contains matching circuits on the tips of the RF strips for the RF strips to be passed to chip devices during use.
    Type: Application
    Filed: June 7, 2018
    Publication date: November 14, 2019
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Taylan EKER, Nihan OZNAZLI, Emrah KOC, Tuncay ERDOL
  • Publication number: 20190350087
    Abstract: A cleaning system and a cleaning method to clean the paste overflowing from at least one hole on the substrate on to at least one substrate during the production of ceramics sintered together at low temperature. The cleaning system includes at least one adhesive tape that adheres to the paste and is convenient for placing over the substrate and at least one pressing element which presses the adhesive tape towards the substrate in order for the adhesive tape to adhere to the overflowing paste. The cleaning method includes laying at least one adhesive tape over the substrate; pressing the adhesive tape towards the substrate by at least one pressing element and enabling the adhesion of the adhesive tape to the paste overflowing from the hole; and separation of the adhesive tape that adheres on the paste overflowing from the hole.
    Type: Application
    Filed: February 6, 2018
    Publication date: November 14, 2019
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Basar BOLUKBAS, Emre MERT
  • Patent number: 10470338
    Abstract: A cooling system for cooling circuit boards. The cooling system includes a casing, which includes at least two board slots and at least one cooling plate between the two board slots; at least one cover, which is placed on a circuit board to be secured to one of the board slots; and at least one wedge placed on the cover. The wedge provides thermal conductivity between the circuit board and the cooling plate when the circuit board is placed into the board slot; and at least one wedgelock that secures the circuit board to the board slot.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: November 5, 2019
    Assignee: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventor: Ali Murtaza Dalgic
  • Publication number: 20190269225
    Abstract: An electronic device carrying system used in military field in particular and providing carrying jammers and similar electronic devices (8) on back of user includes a waist belt (4) covering waist in a manner it sits onto hip bone of user and providing carrying of load through lower extremities, shoulder upper perlons (10) providing fixing shoulder hangers (2) above shoulder, preventing hanging of load and lying on to right-left side and connected from end in lower section to shoulder hangers (2) and mounted to electronic device (8) from end in upper section, chest band (12) providing shoulder hangers (2) to change pressure points on shoulders, carrying apparatus height adjustment mechanism (1) mounted onto electronic device (8), profile (5) having carrying apparatus height adjustment mechanism (1) and providing carrying electronic device (8) to desired height by means of fixing to holes in sequence provided thereon by pins.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 5, 2019
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: KiViLCiM ÇINAR OKUSLUG, MEHMET TURHAN, MUHAMMED EMIN DOGAN, HALIL YURTSEVEN
  • Publication number: 20190214696
    Abstract: A reduced size phase shifter provides the orientation of the microwave beams. The phase shifter includes RF connector (4) that provides the entrance of the coaxial transmission line (8) into the phase shifter (1), dielectric plate (7) with high dielectric constant that provides the gradual transformation of the quasi TEM mode carried by means of the micro-strip transmission line (6) into TE10 mode carried on the twin-toroid structure (5).
    Type: Application
    Filed: January 10, 2019
    Publication date: July 11, 2019
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: HAKKI ILHAN ALTAN, REMZI KÖKSAL
  • Publication number: 20190214697
    Abstract: A phase shifter capable of withstanding very high average RF power, which enables directing of the beam in radar systems, it includes a waveguide, a ferrite toroid, composite dielectric plate including a dielectric plate in high thermal conductivity and a dielectric plate with the high dielectric constant, which increases the amount of phase shift per the unit length by directing the electric field and the transfer of heat generated on the ferrite toroids to the waveguide, a twin-toroid ferrite-dielectric structure including a combination of ferrite toroids and composite dielectric plates.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 11, 2019
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventor: HAKKI ILHAN ALTAN
  • Publication number: 20190159295
    Abstract: A heater circuit track pattern designed to be coated on a heater plate in order to achieve high uniform heat distribution and fast heating up, low power consumption and prevent current crowding with high fill factor. The heater plate includes a substrate layer which is an electrically insulative, highly thermally conductive, low heat capacity substrate where the heater circuit track pattern has a conductive layer and a resistive layer. The conductive layer has conductive parts such that power pads, main power lines, electrical transfer pads, sub-conductor lines are formed by a highly conductive material to distribute power equally to the resistive layer. The resistive layer has resistive portions including resistive parts formed by a resistive ink to heat up the heater plate.
    Type: Application
    Filed: August 27, 2014
    Publication date: May 23, 2019
    Applicant: ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Nuri Gokhan KORKUSUZ, Birce GULEC BOYACI