Patents Examined by Oladimeji Oyegunle
-
Patent number: 11662243Abstract: A guided wave radar level gauge comprising an explosion proof housing with an intrinsically safe (IS) output, a resistor having a first terminal connected to the IS output and a second terminal connected to the housing ground potential, and a transmission line probe connected to the IS output. The housing encloses radar level gauge (RLG) circuitry and a microwave unit having a floating ground potential, and a set of blocking capacitors connected between the microwave unit and the IS output. The microwave unit includes a differential receiver, having a first terminal connected to the IS output via the set of blocking capacitors, and a second terminal connected to the housing ground potential via the set of blocking capacitors, a voltage between the first and second terminals forming an input signal to the differential receiver.Type: GrantFiled: June 8, 2020Date of Patent: May 30, 2023Assignee: ROSEMOUNT TANK RADAR ABInventors: Mikael Eriksson, Leif Nilsson, Håkan Nyberg
-
Patent number: 11641303Abstract: An orthogonal frequency-division multiplexing (OFDM) based radar signal comprising Q sub-carriers adapted to push an IQ-imbalance component out of a subset of L contiguous range bins of range profiles derived out of the received radar signal and wherein L is at most Q/2, is disclosed.Type: GrantFiled: September 20, 2019Date of Patent: May 2, 2023Assignee: IMEC vzwInventors: Andre Bourdoux, Marc Bauduin, Claude Desset
-
Patent number: 11638362Abstract: A vehicular radar sensing system includes a radar sensor disposed at a vehicle so as to sense exterior of the vehicle. The radar sensor includes a housing and at least one printed circuit board (PCB). The housing includes a front housing portion and a rear housing portion. The front housing portion includes side walls with a slot therealong. The PCB is received in the slot of the front housing portion. After the PCB is received in the slot, the front housing portion and the rear housing portion are joined to establish a cavity in which the PCB is disposed.Type: GrantFiled: October 28, 2019Date of Patent: April 25, 2023Assignee: MAGNA ELECTRONICS INC.Inventor: Wilhelm Johann Wolfgang Wöhlte
-
Patent number: 11635488Abstract: A self-diagnosis device of a module including a general-purpose multi-channel IC and a reception phase shifter IC having a plurality of transmission output terminals and reception terminals is configured to perform a self-diagnosis of the reception phase shifter IC by utilizing a signal that is generatable by the general-purpose multi-channel IC, which is enabled by a self-diagnosis signal generation unit that generates a self-diagnosis signal by using (a) a first output signal supplied to a multi-channel receiver of the general-purpose multi-channel IC and (b) a third output signal and a self-diagnosis clock signal synchronously output from a single PLL.Type: GrantFiled: December 29, 2020Date of Patent: April 25, 2023Assignee: DENSO CORPORATIONInventor: Masato Kohtani
-
Patent number: 11579248Abstract: The present application provides a method, apparatus and electronic equipment for recognizing a posture of a target, a first receiving signal and a second receiving signal upon scattering of a transmitting signal from a target to be recognized are acquired, a first baseband signal is determined according to the first receiving signal and the transmitting signal, and a second baseband signal is determined according to the second receiving signal and the transmitting signal; and a category of the posture of the target to be recognized is finally determined according to the first baseband signal and the second baseband signal. The first baseband signal and the second baseband signal carry various feature values related to the posture of the target, including but not limited to transversal velocity information and radial velocity information, etc.Type: GrantFiled: November 6, 2020Date of Patent: February 14, 2023Assignee: BEIHANG UNIVERSITYInventors: Xiangrong Wang, Huaiyuan Liang
-
Patent number: 11544691Abstract: A radar system for monitoring shelves in a retail environment, where the system monitors the occupancy of the shelves and/or the dynamics of the customers in front of the shelves. The radar is preferably a wideband 3D imaging MIMO radar.Type: GrantFiled: April 30, 2020Date of Patent: January 3, 2023Assignee: VAYYAR IMAGING LTD.Inventors: Shay Moshe, Albert Jacob, Michael Mendelovich
-
Patent number: 11529067Abstract: A security check method includes: pre-creating at least four concurrently operating threads, one thread being responsible for movement control and data acquisition, one thread being responsible for imaging processing, one thread being responsible for interface displaying, and one thread being responsible for target detection and recognition; then the four concurrently operating threads divide original echo data of a human body to be checked into data of a plurality of adjacent overlapped azimuthal segments during data processing and perform individual processing on the data of each azimuthal segment. The security check system includes a thread creating unit, a first thread parallel unit, a second thread parallel unit, a third thread parallel unit, a fourth thread parallel unit, and a thread loop control unit. Because subsequent data processing is not required to be performed after the acquisition of all data is completed, the time for a security check process is reduced.Type: GrantFiled: August 4, 2017Date of Patent: December 20, 2022Assignees: CHINA COMMUNICATION TECHNOLOGY CO., LTD., SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATIONInventors: Chunchao Qi, Aixian Wang, Hanjiang Chen, Tiansheng Zhang, Zhihui Feng, Hu Yuan, Shukai Zhao
-
Patent number: 11525889Abstract: A non-contact method for detecting and distinguishing a human and an animal based on IR-UWB bio-radar signals includes: step 1, transmitting a radar pulse to a target by a transmitting antenna of an IR-UWB bio-radar; and obtaining, by a receiving antenna of the IR-UWB bio-radar, a radar echo signal E(n,m) generated from the radar pulse reflected on the target; step 2: performing signal preprocessing on the radar echo signal E(n,m) obtained in step 1, to obtain a first energy signal E6(l); step 3: removing a direct wave from E6(l) obtained in step 2 to obtain a second energy signal E7(l), and obtaining a maximum amplitude E7max of E7(l) and a position lmax corresponding to the maximum amplitude in a slow time direction; step 4: calculating a peak-to-background ratio VEtoB of E7(l), calculating an average correlation coefficient rm, and determining a type of the target through a target detection and distinction rule.Type: GrantFiled: December 23, 2020Date of Patent: December 13, 2022Assignee: AIR FORCE MEDICAL UNIVERSITYInventors: Yang Zhang, Jianqi Wang, Fulai Liang, Zhao Li, Hao Lv, Ziqi Zhang, Xiao Yu, Huijun Xue, Teng Jiao
-
Patent number: 11493644Abstract: A method of identifying item selection by a user, the method comprising: receiving signals at a receiver of a fixed terminal from a transmitter of a mobile terminal associated with the user, generating a signature at the receiver of the fixed terminal of the movement of the user based on changes in the signals received from the transmitter, matching the signature with prior stored movement information to determine the movement of the user, and identifying the item being selected by the user based on the determined movement of the user.Type: GrantFiled: March 15, 2019Date of Patent: November 8, 2022Assignee: Kabushiki Kaisha ToshibaInventors: Timothy David Farnham, Zubeir Bocus
-
Patent number: 11460542Abstract: Multi-channel radio frequency (RF) transmitter (100) and method of calibrating the transmitter are provided.Type: GrantFiled: October 31, 2019Date of Patent: October 4, 2022Assignee: NXP USA, INC.Inventors: Olivier Vincent Doare, Stephane Damien Thuries, Gilles Montoriol
-
Patent number: 11428776Abstract: A system for measuring phase coherence between two modulated radio frequency signals comprises at least two measurement receivers coupled with each other and a processing module assigned to the at least two measurement receivers. Each of the at least two measurement receivers is configured to acquire a radio frequency signal and to convert the respective radio frequency signal acquired into digital samples. The processing module is configured to receive the digital samples and to transform the digital samples into a frequency domain to obtain a respective transformed dataset assigned to each measurement receiver. The processing module is also configured to calculate a phase in dependency of the frequency from the respective transformed dataset. Moreover, the processing module is configured to determine a phase difference over frequency based on the transformed datasets. Further, a method of measuring phase coherence between two modulated radio frequency signals is described.Type: GrantFiled: March 18, 2019Date of Patent: August 30, 2022Assignee: ROHDE & SCHWARZ GMBH & CO. KGInventor: Thomas Braunstorfinger
-
Patent number: 11415665Abstract: An ultra-wideband radar transceiver and an operating method thereof are provided. The ultra-wideband radar transceiver includes a receiving module. The receiving module includes an I/Q signal generator, a first sensing circuit and a second sensing circuit. The I/Q signal generator receives M consecutive echo signals and generates M consecutive in-phase signals and M consecutive quadrature-phase signals accordingly, wherein M is an integer greater than 1. The first sensing circuit is coupled to the I/Q signal generator to receive the M consecutive in-phase signals and is configured to perform integration and analog-to-digital conversion on the M consecutive in-phase signals to generate a first digital data. The second sensing circuit is coupled to the I/Q signal generator to receive the M consecutive quadrature-phase signals and is configured to perform integration and analog-to-digital conversion on the M consecutive quadrature-phase signals to generate a second digital data.Type: GrantFiled: September 19, 2019Date of Patent: August 16, 2022Assignee: RichWave Technology Corp.Inventor: Hsiang-Feng Chi
-
Patent number: 11397239Abstract: In an embodiment, a method of operating a radar includes: transmitting a radiation pulse with the radar during an active mode; asserting a sleep flag after transmitting the radiation pulse; turning off a crystal oscillator circuit of the radar after the sleep flag is asserted; clocking a counter of the radar with a low power oscillator during a low power mode after the sleep flag is asserted; asserting a timer flag when the counter reaches a first threshold; and transitioning into the active mode after the timer flag is asserted.Type: GrantFiled: September 26, 2019Date of Patent: July 26, 2022Assignee: Infineon Technologies AGInventors: Reinhard-Wolfgang Jungmaier, Christoph Rumpler, Saverio Trotta
-
Patent number: 11380995Abstract: The present disclosure provides a two-dimensional antenna system. The two-dimensional antenna system includes a transmitting antenna array and a receiving antenna array. The transmitting antenna array includes one or more circularly polarized transmitting antennas having a first direction of rotation. The receiving antenna array includes two or more first circularly polarized receiving antennas having a second direction of rotation arranged in a first direction, and two or more second circularly polarized receiving antennas having the second direction of rotation arranged in a second direction. The first direction is perpendicular to the second direction, and the first direction of rotation is opposite to the second direction of rotation.Type: GrantFiled: July 19, 2019Date of Patent: July 5, 2022Assignee: SZ DJI TECHNOLOGY CO., LTD.Inventors: Xiaying Zou, Xueming Peng, Qiang Gu, Han Huang
-
Patent number: 11329377Abstract: A coupling device includes a plurality of couplers. Each coupler includes a transmission main line and a coupling subline. The transmission main line is used for providing an input end and an output end. The coupling subline is coupled with the transmission main line to provide two coupling ends. The coupling subline includes two first parts located on opposite sides of the transmission main line and a second part connected between the two first parts. The coupling sublines of the plurality of couplers are connected in series to provide a first coupling output port and a second coupling output port. The first part of the coupling subline of at least one of the plurality of couplers has a shared section with the second part of the coupling subline of an adjacent one of the plurality of couplers.Type: GrantFiled: May 28, 2019Date of Patent: May 10, 2022Assignee: CommScope Technologies LLCInventors: Bo Wu, Ligang Wu, Runmiao Wu, Jian Zhang
-
Patent number: 11320528Abstract: A monopulse secondary surveillance radar is configured to integrate replies to active interrogations and passive squitter reception into a single surveillance system, and includes: a three-channel antenna arrangement; a redundant ADS-B antenna arrangement including a first and second omnidirectional ADS-B antenna, each having a low noise amplifier, and each being integrated with a GPS antenna; and a pair of redundant four-channel interrogators. The three-channel antenna arrangement is configured to transmit interrogations, and to receive corresponding replies from an aircraft transponder. The first ADS-B antenna is coupled to a first of the pair of redundant four-channel interrogators, and the second ADS-B antenna is coupled to a second of said pair of redundant four-channel interrogators, for the monopulse secondary surveillance radar to provide real-time passive detection of ADS-B-equipped aircraft and active radar detection of aircraft to each of the pair of redundant four-channel interrogators.Type: GrantFiled: November 4, 2020Date of Patent: May 3, 2022Assignee: Telephonics CorporationInventors: Frank D. Messina, Bhavesh M. Patel
-
Patent number: 11300651Abstract: A system for augmenting 360-degree aspect monostatic radar cross section of an aircraft. The system may comprise a pair of pods mountable on opposing wing tips of an aircraft and each having a pod housing with an elongate body tapering forwardly to a nose and rearwardly to a tail. Each pod may comprise a forward SDL disposed within the nose, a rear SDL disposed within the tail, and a pair of mid-body SDLs disposed within a mid-section of the pod housing. The SDLs may be arranged within the pods to reflect radiation and provide coverage around the aircraft over a region of about 360 azimuth degrees. Each SDL may comprise radar absorbing material located on an interior reflective surface, and portions of the elongate bodies may be constructed of radome material. The SDLs may be Luneburg lens having diameters of at least approximately 8-inches.Type: GrantFiled: March 14, 2019Date of Patent: April 12, 2022Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Yogeshkumar M. Patel, Robert Barreto, Christopher F. Calderon, Nathan Andrew Alday, Andrew Hamilton Kay, Paul Nelson, Donald Patrick Hilliard, Dean Lucian Mensa, Leroy Francis Mumma
-
Patent number: 11280893Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for multistatic radar communications. In one aspect, a wireless communication device may determine a distance and direction of one or more receiving devices. The wireless communication device may transmit, to the one or more receiving devices, timing information indicating a timing relationship between a codeword sequence and one or more pulses. The wireless communication device may transmit a respective codeword of the codeword sequence in the direction of each of the one or more receiving devices. The wireless communication device may further transmit the one or more pulses in a plurality of directions. The wireless communication device may receive feedback from at least one of the one or more receiving devices and determine ranging information about an object based on the feedback and the distance or direction of at least one receiving device.Type: GrantFiled: September 14, 2020Date of Patent: March 22, 2022Assignee: QUALCOMM IncorporatedInventors: Solomon Trainin, Alecsander Petru Eitan, Assaf Kasher