Inductive Patents (Class 340/941)
  • Patent number: 11947404
    Abstract: An electronic device control method includes obtaining position information of a specific object in a detection area, determining a movement direction of the specific object based on the position information, setting the electronic device to a first operating state in response to the specific object moving out of the detection area from a first direction, or setting the electronic device to a second operating state in response to the specific object moving out of the detection area from a second direction, the first operating state being different from the second operating state when the first direction is different form the second direction.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: April 2, 2024
    Assignee: LENOVO (BEIJING) LIMITED
    Inventors: Zhen Qin, Qihua Xiao
  • Patent number: 11948110
    Abstract: A system for managing performance of a service establishment, the service establishment having multiple servers and multiple customers. Each server has a server queue with zero or more customers. Servers take orders from customers when they reach the head of the server's queue. The system includes: an order input interface for obtaining orders from the servers as the servers take orders from the customers; one or more digital video cameras positioned and configured to capture video of the server queues; a public view monitor viewable by the customers; a management monitor viewable by one or more managers of the service establishment; and a customer tracking processor. The customer tracking processor is configured to: receive video of server queues; identify customers in the video data; track customer progress in the server queues; and calculate and display expected wait times of the server queues on the public view monitor.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: April 2, 2024
    Inventors: Jack Hoang, Andrew Hoang
  • Patent number: 11926227
    Abstract: In a moving-object power supply system, a control unit selects, as a power transmission segment, one of segments included in at least one power transmission section. The control unit supplies, through a power supply circuit, power to the power transmission segment to thereby generate a magnetic field through a power transmission coil of the power transmission segment. The control unit determines, based on an ascertained first electrical characteristic of the power transmission segment and an ascertained second electrical characteristic of at least one power non-transmission segment, whether there is a malfunction in each of the power transmission segment and the at least one power non-transmission segment.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: March 12, 2024
    Assignee: DENSO CORPORATION
    Inventors: Kouji Mazaki, Nobuhisa Yamaguchi, Eisuke Takahashi, Mitsuru Shibanuma, Shinpei Takita, Masaya Takahashi, Hayato Sumiya, Masaki Kanesaki, Takuya Kiguchi, Kazuhiro Uda, Yuusei Nakayashiki
  • Patent number: 11912282
    Abstract: A method for generating a magnetic field, a method for detecting a lane by using a magnetic field, and a vehicle using same are disclosed. According to the present invention, magnetic fields outputted from lanes coated with road-marking paint containing magnetic particles are detected with a magnetic sensor attached to a vehicle, and a plurality of lanes can be detected on the basis of the detected magnetic fields.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: February 27, 2024
    Assignee: Jeongseok Chemical Corporation
    Inventors: Jong-Ill Hong, Yong-Hyun Kim, Young-Gil Ma, Dae-Won Kim
  • Patent number: 11756420
    Abstract: A vehicle detection system 200 comprises: a receiver 202 arranged to receive data transmissions from a vehicle 210; a camera 204 arranged to capture an image of the vehicle 210; and a processing subsystem 206 arranged to implement a trained model for detecting and/or classifying vehicles in an image. The system 200 is arranged to operate in a first mode wherein: the camera 204 captures an image of a vehicle 210 and the receiver 202 receives a data transmission from the vehicle 210; and the processing subsystem 206 is arranged to use information resulting from the data transmission received and the image to train the model further. The system 200 is also arranged to operate in a second mode wherein: the camera 204 captures an image of a vehicle 210 and the receiver 202 does not receive a data transmission; and the processing subsystem 206 is arranged to use the image and the trained model to detect and/or classify the vehicle 210 in the image.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: September 12, 2023
    Assignee: Q-FREE ASA
    Inventor: Ola Martin Lykkja
  • Patent number: 11670165
    Abstract: A system and method that enables individual travelers, including pedestrians or individuals on smaller conveyances, to communicate their location and direction of travel to signal light controllers at an intersection, enables traffic networks to receive this communication and output the detected data to the corresponding intersection traffic-signal controller to allow for individuals not in standard motor vehicles to be detected by traffic detection systems and to allow for priority of traveler flow either independent of vehicle use, or based on specifics of the vehicle used. The system also provides feedback to the traveler to provide information about the actions of the system or to alter the movement of the traveler.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: June 6, 2023
    Assignee: STC, Inc.
    Inventor: Brad Cross
  • Patent number: 11516042
    Abstract: In-vehicle detection system includes nonvolatile memory, a controller (SoC) that reads and writes data from and in nonvolatile memory, and detector that outputs detection information to SoC. SoC changes a control signal of nonvolatile memory in accordance with the output of detector.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: November 29, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Kunisato Yamaoka
  • Patent number: 11479067
    Abstract: This disclosure relates to an approach for monitoring a tire for a puncture based on a change in a voltage established based on a resistance of a material disposed within the tire. In one example, the material is a conductive material layer. In another example, the material is a resistive strip. The systems and methods described herein can monitor for a change in an established voltage over time that is a function of parameters including the resistance of the conductive material layer or the resistive strip, and an applied voltage, to provide an indication of the change in the resistance in the material. The change in resistance of the material can be indicative of the puncture within the tire. The systems and methods described herein can alert a vehicle operator of the puncture within the tire.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: October 25, 2022
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Benjamin E. Rimai, Bradley S. Plotner, Jared J. Griebel, Cameron L. Reynolds
  • Patent number: 11373523
    Abstract: A method for vehicle detection based on single-axis geomagnetic sensor is disclosed. The method includes the following: arranging two geomagnetic sensors in tandem at a fixed distance in the same lane, and acquiring, by the two geomagnetic sensors, data when a vehicle passes by; performing data cleansing and denoising on the data acquired by the geomagnetic sensors; detecting, by the geomagnetic sensors, the vehicle by using an state machine algorithm based on a fixed threshold, and extracting moments when the vehicle enters and leaves detection ranges of the sensors; and collecting statistics on traffic flow in a predetermined period of time, and calculating the velocity and length of the vehicle. The presently disclosed method and apparatus can be independently used to obtain vehicle parameters at important traffic sections or intersections, or can be used in combination with other traffic detection devices to obtain more comprehensive traffic information.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: June 28, 2022
    Assignee: Nanjing University of Science and Technology
    Inventors: Yong Qi, Xian Lv, PengZhen Du, WeiBin Zhang
  • Patent number: 11240070
    Abstract: A digital isolator provided includes a pair of transceiver circuits and a control circuit. Each transceiver circuit includes a transmitter circuit, a receiver circuit, and a DC isolation circuit. When the control circuit controls one of the pair of transceiver circuits to operate in a transmitting mode and the other of the pair of transceiver circuits to operate in a receiving mode, the transmitting circuit of the transceiver circuit operating in the transmitting mode receives a square wave signal to generate a pair of differential square wave signals, the connected DC isolation circuits receive the pair of differential square wave signals to generate a pair of differential coupling signals, and the transceiver circuit operating in the receiving mode uses the pair of differential coupling signals to output the square wave signal through the design of a pair of feedback voltage divider circuits and a differential comparison circuit included therein.
    Type: Grant
    Filed: December 6, 2020
    Date of Patent: February 1, 2022
    Assignee: Feature Integration Technology Inc.
    Inventors: Hung-Hao Lin, Tsung-Wei Li
  • Patent number: 11087049
    Abstract: Example implementations described herein facilitate an interactive environment for companies and personals to validate and develop autonomous driving systems. Such implementations apply to, but are not limited to, applications such as sensor data collection for deep learning model training; validation and development of various detection algorithms; sensor fusion (e.g., radar, lidar, camera) algorithm development and validation, trajectory/motion planning algorithm validation; and control algorithm validation.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: August 10, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Yuan Xiao, Sujit Phatak, Heming Chen, Sanketh Shetty
  • Patent number: 10989768
    Abstract: A magnetic sensor, comprising: a substrate having a groove; two conductive magnetic wires for magnetic field detection arranged adjacent and substantially parallel to one another and at least partially recessed in the groove on the substrate, the two conductive magnetic wires electrically coupled at one end; a coil surrounding the two magnetic wires; two electrodes coupled to the two conductive magnetic wires for wire energization; and two electrodes coupled to the coil for coil voltage detection.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: April 27, 2021
    Assignee: ASAHI INTECC CO., LTD.
    Inventors: Yoshinobu Honkura, Shinpei Honkura
  • Patent number: 10891758
    Abstract: A method includes receiving geometric data to be encoded, generating a signature for the geometric data based on the at least one property associated with the geometric data, enumerating a set of first options, enumerating a set of second options, encoding the geometric data using the enumerated first option and the enumerated second option, decoding the encoded geometric data, selecting one of the enumerated second options based on a cost function, and training a classifier based on the signature, the enumerated first option and the selected second option.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: January 12, 2021
    Assignee: GOOGLE LLC
    Inventor: Michael Hemmer
  • Patent number: 10664706
    Abstract: The present disclosure provides for a method, device, and computer-readable storage medium for performing a method for discerning a vehicle at an access control point. The method including obtaining a video sequence of the access control point; detecting an object of interest from the video sequence; tracking the object from the video sequence to obtain tracked-object data; classifying the object to obtain classified-object data; determining that the object is a vehicle based on the classified-object data; and determining that the vehicle is present in a predetermined detection zone based on the tracked-object data.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 26, 2020
    Assignee: AVIGILON FORTRESS CORPORATION
    Inventors: Don Madden, Ethan Shayne
  • Patent number: 10101460
    Abstract: A pet-locating device adapted for embedding under the skin of an animal that includes: a micro global positioning transmitter; a rechargeable battery, where the rechargeable battery supplies power to the global positioning transmitter; a voltage regulator, where the voltage regulator controls the power supply to the global positioning transmitter; and a power generator, where the power generator charges the rechargeable battery. The power generator uses mechanical motion as the mechanism to generate power.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 16, 2018
    Inventor: Kevin Macz
  • Patent number: 10089878
    Abstract: Methods and systems are described for providing improved detection of a motor vehicle traveling against a designated direction of travel in a roadway. Multiple signals among various system constituents are checked against each other to ensure the lack of a false wrong way indication otherwise possible by use of a single detector. An alert is provided to the wrong way motor vehicle operator and other vehicle operators in the vicinity of detection. A long-range or cellular communication may be broadcast to further provide an alert of a wrong way event and to dispatch emergency personnel to the vicinity.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: October 2, 2018
    Assignee: MDR Manufacturing Corporation
    Inventors: Kenneth R Cummings, II, John Lloyd Ragan, Chris Beaty
  • Patent number: 10069696
    Abstract: The present application discloses a data acquisition method and apparatus for a driverless vehicle. A specific implementation of the method comprises: selecting a sensor having the highest importance level among at least one sensor of the driverless vehicle as a first sensor and at least one sensor other than the first sensor to forma second sensor set; acquiring a start time of a current time window, and executing the following data processing steps: executing real-time acquiring and storing operations on data packets collected by each sensor among the at least one sensor after the start time of the current time window; determining whether any condition in the following condition group is met; and in response to determining that any condition in the condition group is met, setting the start time of the current time window to the current time, and continuing executing the data processing steps.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: September 4, 2018
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Yibing Liang, Bocong Liu, Zhuo Chen, Wei He, Chengliang Deng, Kaiwen Feng
  • Patent number: 9370041
    Abstract: A system for communicating information facilitates wireless communication between electronic devices. The system includes a transceiver provided in a vehicle. The transceiver communicates with an electronic device located external to the transceiver using a Bluetooth communications standard.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: June 14, 2016
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Todd R. Witkowski, Kurt A. Dykema, Steven L. Geerlings, Mark L. Zeinstra
  • Patent number: 9177469
    Abstract: Method and apparatus receiving reports from at least two wireless vehicular sensor nodes and stepping through a process of comparing filtered queues to determine the first and the second waveform in time, leading to counting the vehicles passing the magnetic sensors of the wireless vehicular sensor nodes.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: November 3, 2015
    Assignee: Sensys Netoworks, Inc.
    Inventor: Karric Kwong
  • Patent number: 9024789
    Abstract: A method for determining the sequence of vehicle tagged with and without an RFID, comprises: f1. carrying out multiple receiving and transmitting communications with an RFID tag in a read-write region by using an RFID reader-writer, recording success and failure operations; f2. setting a time window, moving the time window from left to right on a time axis, adding the success times of the receiving and transmitting communications to obtain a curve a; f3. detecting vehicles in the read-write region by using a ground induction coil to obtain a curve b; f4: when detecting a square wave in the curve b, indicating there is at least one vehicle driving through the coil, judging whether the driven through vehicle is installed with an RFID tag according to the wave time relationship between the curves a and b, judging whether there is a vehicle without an RFID tag among the vehicles with RFID tags driving through.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: May 5, 2015
    Assignee: Digican (Shanghai) Corp., Ltd.
    Inventor: Jeffrey C Zhu
  • Patent number: 9026283
    Abstract: Occupancy of a railroad track detection zone by one or more trains is determined using sensor devices located at gateways into and out of the track detection zone. Each sensor device has a sensing range that includes a portion of the railroad track in the detection zone and the sensor device generates data used to uniquely identify each train passing through a gateway and thus the sensing range of one or more sensor devices. Data from the detection zone's sensor device array is collected and evaluated to monitor or track the status of any detected trains and the occupancy of the zone. In some embodiments, the sensor devices utilize anisotropic magnetoresistive sensor elements whose analog waveform data is the basis of magnetic flux peak detection and mapping to generate unique train identification signature data that is transmitted to and evaluated by a detection zone processor, which in some cases can control crossing signals and/or other control apparatus related to the railroad track detection zone.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: May 5, 2015
    Assignee: Central Signal, LLC
    Inventors: David E. Baldwin, Ahtasham Ashraf
  • Patent number: 9013327
    Abstract: The invention includes a vehicular sensor node, circuit apparatus and their operations. Power from power source is controlled for delivery to radio transceiver and magnetic sensor, based upon a task trigger and task identifier. The radio transceiver and the magnetic sensor are operated based upon the task identifier, when the task trigger is active. The power source, radio transceiver, magnetic sensor, and circuit apparatus are enclosed in vehicular sensor node, placed upon pavement and operating for at least five years without replacing the power source components. Magnetic sensor preferably uses the magnetic resistive effect to create magnetic sensor state. Radio transceiver preferably implements version of a wireless communications protocol. The circuit apparatus may further include light emitting structure to visibly communicate during installation and/or testing, and second light emitting structure used to visibly communicate with vehicle operators.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: April 21, 2015
    Inventor: Robert Kavaler
  • Patent number: 8937560
    Abstract: A system of communicating vehicle detection is provided. The system may include a probe having at least a probe controller and a magnetic sensor for detecting the Earth's magnetic fields, and a control system having a main controller, an output port and a two-wire interface for communicating with the probe. The probe controller may be configured to quantify detected magnetic fields into a sensor output value per iteration at a predefined frequency, and initiate an interrupt per iteration the sensor output value is determined to exceed a predefined sensor value. The main controller of the control system may be configured to communicate a supply signal to the probe over a first line of the two-wire interface, monitor a return signal from the probe over a second line of the two-wire interface for interrupts, and generate a call signal on the output port indicative of confirmed vehicle detection if the number of consecutive interrupts in the return signal exceed a predefined interrupt limit.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: January 20, 2015
    Assignee: Diablo Controls, Inc.
    Inventor: Thomas W. Seabury
  • Patent number: 8836539
    Abstract: Provided are a loop type automobile sensing device formed integrally with a small loop coil, which has the automobile sensing sensitivity of a related art loop type automobile sensing device using a large loop coil, so as to greatly facilitate installing and maintaining of the loop type automobile sensing device and to expand the application scope of the loop type automobile sensing device, and a parking information system using the loop type automobile sensing device. In addition, the loop type automobile sensing device integrally formed with the loop coil is provided in plurality as automobile sensors to detect the presence and moving state of an automobile according to a signal from the automobile sensors, to control operations of a plurality of cameras, warning lamps, and display devices installed to a parking lot, and to notify parking information and automobile movement information.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: September 16, 2014
    Assignee: Moru Inven Co., Ltd.
    Inventor: Jeong Jun Lee
  • Publication number: 20140253347
    Abstract: In an example embodiment, a Vehicle sensor senses the arrival and departure of vehicles in a drive-through lane. In particular embodiments, the system can calculate and store time data corresponding to each vehicle. Time data can be processed to determine the duration of transaction activity in the drive-through lane.
    Type: Application
    Filed: May 6, 2014
    Publication date: September 11, 2014
    Inventors: Neil GROMLEY, Dustin CAIRNS, Mike LAWVER, Rodney J. REESE, B. Scott HARROFF
  • Patent number: 8830089
    Abstract: The invention includes using multiple wireless vehicular sensor nodes to wirelessly receive multiple, time-interleaved vehicular waveform reports from the nodes. Each vehicular waveform report approximates a raw vehicular sensor waveform observed by a magnetic sensor at the node based upon the presence of a vehicle. The vehicular waveform reports are products of this wirelessly receiving process. The invention includes apparatus supporting the above outlined process. The vehicular waveform reports may be time synchronized.
    Type: Grant
    Filed: July 14, 2013
    Date of Patent: September 9, 2014
    Assignee: Sensys Networks, Inc.
    Inventor: Robert Kavaler
  • Patent number: 8823553
    Abstract: The invention concerns a traffic detector (200) comprising: a hermetically closed tube (202); the said tube (202) delimiting at least one chamber (218), each chamber (218) extending from one of the ends of the said tube (202), for each chamber (218), a piezoelectric sensor placed at the corresponding end of the tube (202) and suitable for transforming the shock waves received into an electrical signal; the traffic detector (200) being characterised in that it comprises an elastic band (204) and fixing devices (208, 210) intended to keep the said elastic band (204) tensioned between the ends of the said tube (202).
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: September 2, 2014
    Assignee: Eco Compteur
    Inventors: Christophe Milon, Jean-Claude Dubois
  • Patent number: 8803708
    Abstract: A method and apparatus for continuous, non-intermittent, detection of vehicles based on a light detector for detecting a change in illumination when a vehicle arrives or departs, and on a use of the light detection to activate a magnetic sensor, a sensitivity of which is adjusted to detect only those magnetic disturbances sufficiently large to be able to be attributed to a vehicle which is over the sensor. Both the light detector and the magnetic sensor are connected directly to a digital controller without a need for active electronic components or their own or a shared power supply source. The light detector may be fixed or portable, wireless or connected by cables, and may operate independently or as part of a sensor network.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: August 12, 2014
    Assignee: Universitat Politecnica de Catalunya
    Inventors: Ramon Pallàs Areny, Jaime Oscar Casas Piedrafita, Ernesto Sifuentes De La Hoya
  • Patent number: 8797188
    Abstract: The present invention relates to a low power operated loop type vehicle detecting apparatus, and particularly, to a low power operated loop type vehicle detecting apparatus that comprises an LC resonator with a loop coil installed in a detecting area, a resonance oscillation circuit unit, and a vehicle behavior determination unit. The vehicle detecting apparatus further comprises: a behavior determination clock generator for generating a behavior determination clock; a count controller for setting clock count time in a steady-state period; a behavior determination clock counter for counting the behavior determination clock during the clock count time set by the count controller; and a vehicle behavioral state determiner for determining a vehicle behavioral state in a detecting area, based on the counting value of the behavior determination clock counter. Power consumption can thereby be reduced.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: August 5, 2014
    Assignee: Moru Inven Co., Ltd.
    Inventor: Jeong Jun Lee
  • Patent number: 8779942
    Abstract: A vehicle detector detects bicycles and discriminates between a bicycle and a motorized vehicle using a specific signature analysis technique when operated in the bicycle detect mode and the bicycle only detect mode. The signature analysis technique employs two sets of rules: one set for a bicycle which produces a signature having at least two peaks and two valleys when passing over a loop connected to the vehicle detector; the other for a bicycle which produces a signature having two peaks and only one valley when passing over a marginal side region of a loop connected to the vehicle detector. Peak and valley searches are conducted sequentially, with a peak search being conducted first upon start-up.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: July 15, 2014
    Assignee: Reno A & E
    Inventors: Thomas Ray Potter, Jason Zhen-Yu Lu
  • Patent number: 8773287
    Abstract: A vehicle detector (10) comprises a vehicle sensor (14) arranged for sensing disturbances caused by a vehicle, a digitizer of a microprocessor (20) connected to the vehicle sensor (14). The vehicle detector (10) further comprises a memory (18) connected to the digitizer and arranged for storing the digital representation, an antenna (12) and a transmitter of a radio unit (40). The microprocessor (20) also comprises a controller arranged for controlling operation of the vehicle sensor (14), and the transmitter. The vehicle detector has a housing (49) enclosing the vehicle sensor (14), the digitizer, the memory, the transmitter and the controller. The housing (49) provides protection against mechanical damage and moisture, thereby enabling the housing to be placed under ground. The antenna (12) is provided outside the housing (49) and at a distance from the housing (49) for enabling placement of the antenna (12) within a roadway surface coating.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: July 8, 2014
    Assignee: Sensebit AB
    Inventors: Fredrik Zettergren, Patrik Söderberg, Karl Nilvér, David Kulander
  • Patent number: 8711006
    Abstract: The vehicle detection apparatus includes a communication unit, a magnetic sensing unit, a calibration information generation unit, a vehicle detection unit, and a control unit. The communication unit receives information about movement of a reference vehicle from a central management center. The magnetic sensing unit senses the change in a magnetic field attributable to the movement of a vehicle, and generates a magnetic signal. The calibration information generation unit generates calibration information. The vehicle detection unit calibrates the change in the magnetic signal attributable to movement of an actual vehicle based on the calibration information, and detects the movement of the actual vehicle. The control unit controls the above units, and sets the mode to calibration information generation mode in order to generate the calibration information and to vehicle detection mode in order to sense the movement of the actual vehicle.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: April 29, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-Jun Yoo, Do-Hyun Kim, Jong-Hyun Park, Kyong-Ho Kim, Jong-Woo Choi
  • Publication number: 20140028475
    Abstract: A traffic information detection system and method. According to the traffic information detection method of the present invention, at least one loop coil on a road transmits a signal indicative of electric change induced in the loop coil by a vehicle, at least one loop detection device installed at the garden or escape zone of the road receives the signal transmitted from the loop coil and wirelessly transmits a signal indicative of whether or not a vehicle exists on a road, the velocity of and type of the vehicle, and a traffic signal controller wirelessly receives the signal transmitted from the loop detection device, thereby acquiring traffic information.
    Type: Application
    Filed: January 23, 2013
    Publication date: January 30, 2014
    Inventor: Jeong Jun LEE
  • Patent number: 8587455
    Abstract: An RFID system for determining the location of a vehicle or mobile object that passes thereover is presented. The system comprises a tag arrangement having at least one tag where the arrangement having a width of between approximately 0.5 m and 2 m.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: November 19, 2013
    Assignee: Psion, Inc.
    Inventors: Philippe Porte, Pierre Bonnefoy
  • Publication number: 20130300585
    Abstract: A method for determining the sequence of vehicle tagged with and without an RFID, comprises: f1. carrying out multiple receiving and transmitting communications with an RFID tag in a read-write region by using an RFID reader-writer, recording success and failure operations; f2. setting a time window, moving the time window from left to right on a time axis, adding the success times of the receiving and transmitting communications to obtain a curve a; f3. detecting vehicles in the read-write region by using a ground induction coil to obtain a curve b; f4: when detecting a square wave in the curve b, indicating there is at least one vehicle driving through the coil, judging whether the driven through vehicle is installed with an RFID tag according to the wave time relationship between the curves a and b, judging whether there is a vehicle without an RFID tag among the vehicles with RFID tags driving through.
    Type: Application
    Filed: December 14, 2011
    Publication date: November 14, 2013
    Inventor: Jeffrey C. Zhu
  • Patent number: 8487784
    Abstract: The application discloses using multiple wireless vehicular sensor nodes to wirelessly receive multiple, time-interleaved vehicular waveform reports from the nodes. Each vehicular waveform report approximates a raw vehicular sensor waveform observed by a magnetic sensor at the node based upon the presence of a vehicle. The vehicular waveform reports are products of this wirelessly receiving process. The application discloses apparatus supporting the above outlined process. The vehicular waveform reports may be time synchronized.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: July 16, 2013
    Assignee: Sensys Networks, Inc.
    Inventor: Robert Kavaler
  • Patent number: 8466804
    Abstract: A system to identify junctions of restricted areas to approaching vehicles, including at least one warning signal generator adapted to transmit the warning signal into areas traversed by the vehicles approaching the restricted areas, a receiver in each of the vehicles receiving the transmitted warning signals when the vehicle approaches one of the restricted areas, and an alarm responsive to the warning signal, which produces an alarm signal detectable by a vehicle operator.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: June 18, 2013
    Inventor: George Vickas
  • Publication number: 20130063282
    Abstract: Power efficient, modular sensor devices utilize magnetic sensor elements, wireless data communication and sensor device level processing to detect, evaluate and classify roadway vehicles. Sensor devices are configured in a network enabling data sharing between sensor devices. Earth generated magnetic fields are monitored within the range of each sensor device with reliability and stability over a wide range of environmental conditions and sensor device placements to detect field distortions specifically caused by a variety of roadway vehicles. Multiple sensor devices configured as a network, communicating with other sensor devices and one or more substations, collect, generate, share and evaluate data to determine multiple attributes of roadway vehicle events. Analog field distortion (waveform) measurements are converted to digital format and analysis on the detected waveform to classify the waveform event as a roadway vehicle of particular type and to determine a unique signature for the waveform event.
    Type: Application
    Filed: May 30, 2011
    Publication date: March 14, 2013
    Applicant: CENTRAL SIGNAL, LLC
    Inventors: David E. Baldwin, Ahtasham Ashraf
  • Patent number: 8390478
    Abstract: The present invention providing a system and installation method of wireless vehicle detection based on earth magnetic induction a signal collection module, a signal conditioning module, a MCU control module, a wireless communication module, a battery module and a signal receiver module includes.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: March 5, 2013
    Assignee: Shanghai Super Electronics Technology Co. Ltd
    Inventors: Zhong Qin, Keyi Wang, Shengyang Wang, Rushan Pan
  • Patent number: 8390477
    Abstract: Disclosed is an inventory control system or parking space detector including an inductive loop technology that is either embedded in the concrete or located atop the concrete, or any other feasible method of setting an inductive loop. By monitoring the change in inductance of the magnetic field that is generated by the loop as cars of various sizes and weights enter the looped area, a determination of whether or not the inventory is controlled or the parking spaces are all full is made when the inductance value reaches a certain predetermined level. This predetermined level will be determined by calibration in the initial installation in order to determine the exact inductance values when a group of parking spaces are full.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: March 5, 2013
    Inventor: Phares A. Noel, II
  • Patent number: 8374573
    Abstract: An automatic vehicle identification (AVI) system signal processing technique which provides improved performance and reliability and which substantially eliminates the adverse effect of ambient noise signals on the detection of permissible code sequences by an AVI receiver. Input signals to an AVI receiver are filtered to strip off all frequency components except those at the carrier frequency. The filtered signals are subjected to variable gain amplification over a substantially linear operating range with the maximum amplitude of the amplified signals limited to a maximum value below the supply voltage and within the linear range of the variable gain amplifier. The amplified signals are converted to a binary pulse train signifying the temporal length of each active carrier period and the temporal length of each quiescent carrier period. The binary pulse train is decoded and a valid vehicle signal is generated if the decoded binary pulse train matches a permissible code sequence.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: February 12, 2013
    Assignee: Reno A & E
    Inventor: Thomas R. Potter, Sr.
  • Patent number: 8331621
    Abstract: A toll violation enforcement system that contains a capture unit that receives a trigger signal and takes vehicle images of passing vehicles. A lighting unit configured to operate continuously is provided to establish a major lighting source incident on the vehicle. A processing unit is provided that processes the vehicle image and controls the settings employed by the capture unit. The processing unit preferably contains a plate location module for extracting an original resolution license plate area image from a first vehicle image; an exposure control module for controlling the exposure setting on the capture unit to provide consistent intensity of the license plate area; a resolution reset module for changing the image resolution for a second vehicle image; an image enhancement module for brightening pixels of the second vehicle image; and an image compression module for compressing the license plate area image and second vehicle image to a predetermined format.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: December 11, 2012
    Assignee: United Toll Systems, Inc.
    Inventors: Jim Allen, Sheng Zhong, Raghavan Venugopal, Balaraju Banna, Xidong Zheng
  • Patent number: 8328143
    Abstract: A method and system for reducing, in a centralized train control system, the portion of a centralized server application that is considered vital while not reducing the overall vitality of the system.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: December 11, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Robert B. Groves, Jr., Richard A. Allshouse
  • Patent number: 8319664
    Abstract: A vehicular sensor node, circuit apparatus and their operations. Power from power source is controlled for delivery to radio transceiver and magnetic sensor, based upon a task trigger and task identifier. The radio transceiver and the magnetic sensor are operated based upon the task identifier, when the task trigger is active. The power source, radio transceiver, magnetic sensor, and circuit apparatus are enclosed in vehicular sensor node, placed upon pavement and operating for at least five years without replacing the power source components. Magnetic sensor preferably uses the magnetic resistive effect to create magnetic sensor state. Radio transceiver preferably implements version of a wireless communications protocol. The circuit apparatus may further include light emitting structure to visibly communicate during installation and/or testing, and second light emitting structure used to visibly communicate with vehicle operators. Making filled shell and vehicular sensor node from circuit apparatus.
    Type: Grant
    Filed: June 14, 2008
    Date of Patent: November 27, 2012
    Assignee: Sensys Networks, Inc.
    Inventor: Robert Kavaler
  • Publication number: 20120274483
    Abstract: A method and apparatus for continuous, non-intermittent, detection of vehicles based on a light detector for detecting a change in illumination when a vehicle arrives or departs, and on a use of the light detection to activate a magnetic sensor, a sensitivity of which is adjusted to detect only those magnetic disturbances sufficiently large to be able to be attributed to a vehicle which is over the sensor. Both the light detector and the magnetic sensor are connected directly to a digital controller without a need for active electronic components or their own or a shared power supply source. The light detector may be fixed or portable, wireless or connected by cables, and may operate independently or as part of a sensor network.
    Type: Application
    Filed: August 31, 2010
    Publication date: November 1, 2012
    Inventors: Ramon Pallàs Areny, Jaime Oscar Casas Piedrafita, Ernesto Sifuentes De La Hoya
  • Publication number: 20120200432
    Abstract: The present invention relates to a low power operated loop type, vehicle detecting apparatus, and particularly, to a low power operated loop type vehicle detecting apparatus that comprises an LC resonator with a loop coil installed in a detecting area, a resonance oscillation circuit unit, and a vehicle behavior determination unit. The vehicle detecting apparatus further comprises: a behavior determination clock generator for generating a behavior determination clock; a count controller for setting clock count time in a steady-state period; a behavior determination clock counter for counting the behavior determination clock during the clock count time set by the cont controller; and a vehicle behavioral state determiner for determining a vehicle behavioral state in a detecting area, based on the counting of the behavior determination clock counter. Power consumption can thereby be reduced.
    Type: Application
    Filed: January 26, 2010
    Publication date: August 9, 2012
    Applicant: MORU INVEN CO., LTD.
    Inventor: Jeong Jun Lee
  • Patent number: 8212690
    Abstract: A passive activator, used in combination with a vehicle sensing arrangement in a roadway, includes an electrically conductive material such as a wire mesh and placed inside or within a vehicle tire. The electrically conductive material portion forms a closed loop. The electrically conductive material portion may also include a protective layer or liner to prevent damage to the tire or to an inner tube of the tire. The passive activator causes sufficient disturbance of the electro-magnetic field to activate a vehicle detection sensor located in a roadway when a tire equipped with the passive activator passes over the roadway induction loop.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: July 3, 2012
    Inventor: Edwin Partin
  • Patent number: 8179282
    Abstract: A method, system and computer program product are provided for automating the task of data collection and reduction for highway vehicle detector testing. To evaluate the performance of each detector under test, a set of detection data is accumulated concurrently from each of the detectors. This data consists, at a minimum, of the time of arrival of each vehicle as reported by each detector and a digitized video image of the vehicle at the position-compensated time of detection. The data reduction process allows for applying weighting coefficients to each detection result in the formation of a consensus. These coefficients may be either fixed or adaptively adjusted based upon the learned accuracy of each detector under test. A ground truth reference data set is then generated using the weighted consensus determined from the data generated by all detectors under test.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: May 15, 2012
    Assignee: Cal Poly Corporation
    Inventor: Carl Arthur MacCarley
  • Patent number: 8144034
    Abstract: This application discloses using multiple wireless vehicular sensor nodes to wirelessly receive multiple, time-synchronized vehicular waveform reports from the nodes to create a time synchronized system report, and preferably a time synchronized vehicular report. Each vehicular waveform report approximates a raw vehicular sensor waveform observed by a magnetic sensor at the node based upon the presence of a vehicle. The vehicular waveform reports, the time-synchronized system report, and the time synchronized vehicular report are products of this wirelessly receiving process. Also disclosed are apparatus supporting the above outlined process. Reception of the vehicular waveform reports may be time interleaved.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: March 27, 2012
    Assignee: Sensys Networks
    Inventor: Robert Kavaler
  • Patent number: RE49641
    Abstract: Systems and methods are described for improving foreign object detection for ferromagnetic wire-like objects. In particular, aspects include increasing FOD sensitivity using at least one inductive sense loop in response to detecting a change in resistance that is substantially equal to the change in reactance of a sense coil. By increasing the FOD sensitivity, objects such as ferromagnetic wire-like objects can be detected that are potentially hazardous objects. Detecting these potentially hazardous objects that were previously undetectable can reduce the chances of damage to surrounding materials or harm to humans.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: September 5, 2023
    Assignee: WiTricity Corporation
    Inventors: Hans Peter Widmer, Andreas Daetwyler, Lukas Sieber