38 results about "Emitter identification" patented technology

A system for detecting and locating overboard personnel of a vessel. The system includes a plurality of transmitter units and an onboard receiver. A transmitter is assigned to be worn by each person to be monitored by the system. Each transmitter provides a unique identifier signal to the onboard receiver. The onboard receiver is initialized to establish an initial identifier configuration. The onboard receiver then continuously monitors its reception to detect any change in said initial identifier configuration. The onboard receiver triggers an alert in the event of detection of a change in said initial identifier configuration. In a first embodiment the assigned transmitters are activated prior to establishing the initial identifier configuration and the initial identifier configuration consists of all active transmitter identifiers present. In this first embodiment, the alert condition is initiated upon a failure of receipt of one of the identifiers. In a second embodiment, none of the transmitters are activated until it is submerged, the initial identifier configuration consists of no transmitter identifiers present. In this second embodiment, the alert condition is initiated upon receipt of a transmitter identifier. The system can also include a real time clock to record the time of an alert condition and/or a satellite positioning system to record the location of an alert.

An apparatus and method to detect consumer choices of products by use of RFID tags associated with a product and RFID readers to detect movement of the tag, which can initiate a presentation of relevant digital media based on the event and tag detected. The present invention is a new method of utilizing digital merchandising software, and RFID tags or other similar emitter identification tags as a potential input technology. The concept of the present invention can be considered a concept of “reverse RFID”, where the RFID reader and supporting CPU keeps track of tags in proximity to the reader and then triggering events based on separation from reader (i.e. the RFID reader no longer detects the presence of an RFID tag because the tag has been moved out of the range of the reader). The movement of the tag out of the detection range of the reader can be the result of a potential customer picking up a product and removing it from the shelf, where the product has an RFID tag associated therewith.

An information providing method, comprises receiving a receiver identifier and an encrypted transmitter identifier from a receiver receiving the encrypted transmitter identifier from a transmitter by a relay equipment, decrypting the encrypted transmitter identifier by the relay equipment, determining an information providing equipment providing transmitter information with respect to the transmitter based on a decryption result of the encrypted transmitter identifier by the relay equipment, requesting the transmitter information from the information providing equipment by the relay equipment, receiving the transmitter information from the information providing equipment by the relay equipment, and transmitting the transmitter information to the receiver by the relay equipment.

A module for use in connection with a media content set-top box is described. The module may include a communications node configured to interface with the media content set-top box that receives media content, a receiver and/or transceiver and control logic. The control logic is configured so as to receive one or more first signals, via the receiver and/or transceiver, carrying corresponding one or more CMRS tower, wireless access point, and/or transmitter identifiers, to determine one or more signal strengths of the one or more first signals, and to obtain a location of the device. The location of the device can then be used to provide location specific media content or information alerts and/or to facilitate the determination of whether a use of the device, a use of an associated media content set-top box, etc., at the location is authorized.

The invention relates to an intelligent emitter identification method based on GRU depth convolution network, which mainly solves the problem that the serialization characteristics of radar emitter signals can not be extracted by the prior art. The scheme comprises the following steps: radar emitter signals are classified; the radar emitter signals are simulated and sliced, the sliced samples areconverted into two-dimensional real samples, and the two-dimensional real samples are normalized and divided into training sample set and test sample set, a depth neural network based on gated circulation unit GRU is constructed; the training sample set is inputted into the depth neural network, and the trained depth neural network model is obtained by optimizing the loss function, the test sampleset is input into the trained depth neural network model, and the recognition result of radar emitter signal is obtained. The invention can extract pre-and post-correlation features of signals, avoids manual feature extraction and prior knowledge, has low complexity and accurate classification result, and can be used for radar emitter identification under complex electromagnetic environment.

A method for use in operating a vehicle charging device based on an identifier provided to the charging device by a wireless transmission device. A registration device receives a first signal indicating a transmitter identifier from a wireless transmission device and an account identifier. The transmitter identifier is associated with the account identifier by the registration device. A second signal indicating the transmitter identifier is received from the wireless transmission device at a charging device. The charging device determines whether the account identifier associated with the received transmitter identifier is associated with an authorized account and provides electrical energy to a vehicle when the account identifier is associated with an authorized account. A financial transaction may be initiated against a payment account associated with the transmitter identifier based on the quantity of electrical energy provided.

The invention relates to an anti-collision algorithm for a frame time slot ultrahigh frequency RFID system based on blind separation. The anti-collision algorithm for the RFID system is put forward based on ICA and frame time slots according to ultrahigh-frequency radio-frequency signals ranging from 860MHz to 960MHz. According to the anti-collision algorithm, steps of an ICA algorithm in the RFID system are analyzed, an antenna system model with blind sources separated is established, the quantity of tags in each time slot is not larger than the quantity of antenna of a reader by means of specific selection of the quantity of the frame time slots, conditions of blind source separation identification tags are met, and synchronous identification can be performed on multiple tags through the ICA algorithm. A simulation result shows that compared with a traditional tag anti-collision algorithm and a blind separation and dynamic bit-slot grouping algorithm, the tag identification rate is high, identification time of the algorithm is less, and feasibility and high efficiency of the blind source separation technology applied to tag identification are verified further. The anti-collision algorithm has potential application value in the engineering field needing high efficiency and intelligent management.

The invention provides a timing method, device and system, and the method comprises the steps: obtaining Bluetooth broadcast data in a set time period, wherein the Bluetooth broadcast data comprises a Bluetooth emitter identification and a Bluetooth signal intensity value; adding a time stamp for each piece of Bluetooth broadcast data, and obtaining the Bluetooth timing data, wherein the time stamps are used for recording the time when the Bluetooth broadcast data is obtained; determining one piece of reference Bluetooth timing data for each Bluetooth emitter in the set time period according to the Bluetooth signal intensity value; enabling the reference Bluetooth timing data to be transmitted to a server, so that the server determines the time when the user wearing the Bluetooth emitter passes by the timing device according to the reference Bluetooth timing data. According to the technical scheme of the invention, the method, device and system can achieve noninductive timing. Moreover, the Bluetooth emitter and the timing device are low in the cost, and are simple in deployment, thereby improving the user experience.

A hybrid radar receiver includes an antenna array for receiving an input signal having a radar signal from a signal emitter. Each array element outputs an analog signal on a respective data channel. For each data channel, an activatable A/D converter is provided. A dedicated hardware circuit, which typically includes a detector/log video amplifier that is coupled to a threshold/pulse digitizer, is included to determine when a radar pulse is being received. When the circuit determines that a pulse is being received, the circuit activates each A/D converter to generate a digital signal on each channel. When a pulse is not currently being received, the circuit deactivates each A/D converter and digital signals are not produced. Pulse parameter(s) generated by the hardware circuit and the digital signals on each channel are sent to a software equipped processor which implements a signal emitter identification algorithm.

A method is provided for determining a scan strategy to receive data for a digital unit associated with an electronic support measure receiver. The receiver scans a surrounding environment to detect and receive emitted signals while utilizing the digital unit to improve emitter identification. The digital unit is provided with the data according to requirements of digital signal processing algorithms implemented by the unit.

The invention provides a box dimension-based emitter fingerprint feature extracting method and relates to an emitter fingerprint feature extracting method. The method is aimed to solve the problem that conventional feature parameters cannot meet the requirements for the effectiveness and reliability of specific emitter identification and thus the accuracy of specific emitter identification is low.The box dimension-based emitter fingerprint feature extracting method comprises the steps of: firstly, performing segment treatment on a received one-dimensional emitter signal to obtain one-dimensional emitter signal segments; secondly, performing box dimension feature extracting on the one-dimensional emitter signal segments obtained in the first step to obtain a box dimension feature vector. The method is applicable to the field of specific emitter identification.

The invention relates to a method and an apparatus for position replacing and identification code changing of emitters of a TPMS system. The apparatus comprises a multimedia playing device and a receiver. The multimedia playing device outputs an emitter transposition protocol frame to the receiver when receiving an emitter position replacing instruction and selection of two emitters in need of replacing of positions. The multimedia playing device outputs an identification code changing protocol frame to the receiver when receiving an identification code changing instruction and a changed emitter identification code from an input device. A memory of the receiver stores a plurality of emitter positions and identification codes. Positions of the two emitters in the memory are replaced according to the emitter transposition protocol frame, and the identification code of one emitter in the memory is changed according to the identification code changing protocol frame. Compared with conventional operation modes, a scheme provided by the invention has the advantages of low cost and simplified operation.

The invention provides an image processing method. The method comprises the following steps that 1, for each pixel point of an image, grayscale frequency and coordinate information of the pixel pointare recorded; 2, the grayscales of all the pixel points in the image are clustered according to the gray level types to form a spatial gray level area position distribution diagram Ti with different gray level types as characteristics; 3, all gray level blocks in the gray level area position distribution diagram with different gray level types are screened, and target blocks are selected; the target blocks which are found from the gray level area position distribution diagram with different gray level types are combined, identified and subjected to image reconstruction. Compared with originaldeep leaning image identification, the image processing method has the advantages that another way is provided, a grayscale standard is adopted for conducting block division on the image, the restrictions of the learning capacity and the variable target edge gradient are removed, the data processing speed is greatly increased, the identification validity is greatly improved, the requirement for hardware is remarkably reduced, the high universality is achieved, and the difficult problems of complex environment, low contrast degree and tracking identification for a small target are solved.

The invention relates to a phase prediction error fingerprint feature extraction method and an identity detection method and an emitter identification and correction method based on the feature. The correction method includes the following steps: estimating the parameters of received signals in each time slot of burst data; acquiring the phase prediction error of each time slot in the burst data;aggregating the phase prediction error of multiple time slots in a set time period to obtain phase prediction error vectors; drawing a curve in ascending order of the error vectors, acquiring a detection threshold, and detecting the user identities of adjacent time slots; and correcting the original identification result of an emitter by taking the user identity detection result as priori information to obtain a final identification result of the emitter. The continuity of adjacent time slots on a carrier phase is proposed as a fingerprint feature, whether the user identities of adjacent timeslots are the same or not is judged based on the feature, and the original identification result is corrected by taking the user identity detection result as priori information. The identification rate is improved. The methods have high practical application value.

A multimedia terminal comprises a receiver adapted to receive a multimedia signal from a network transmitter, the multimedia signal including a transmitter identifier corresponding to the network transmitter. The multimedia terminal also comprises a processor operatively coupled to the receiver, adapted to evaluate the transmitter identifier included in the multimedia signal. The multimedia terminal also comprises a multimedia processor operatively coupled to the receiver and the processor, adapted to processor the multimedia signal based on the evaluation of the transmitter identifier by the processor. The evaluation of the transmitter identifier by the processor comprises determining whether the transmitter identifier may correspond to a fee-based transmitter. The multimedia terminal may further comprise a display operatively coupled to the multimedia processor, adapted to display a multimedia service associated with the multimedia signal based on the evaluation of the transmitter identifier by the processor.

System and method for optimizing the transmissions of data associated to an impersonal identifier of the receiver, made of an architecture on which the computer software implementing the optimization method runs, including an emitter which “is made aware” by several possible means of the receiver's impersonal identifier II, and which transmits the relevant data to the receiver, an input device for the II, and the various types of data transmitted by the emitter, an operative memory OM where every bijective pair of personally identifiable information PII is stored, respectively impersonal identifier II, a central computer with server function receiving II and data from the emitter and using the PII associated with II transmits the data together with PIT to the receiver by a Communication Service Provider CSP, an output device to transmit data to a receiver, known in itself, and in order to optimize the technical functional parameters of the system, a sub-system called Personal Data Manager PDM running on the said server.

A specific emitter identification (SEI) method and apparatus is capable of identifying and tracking objects within a geographical area of interest wherein the system and method has not been preprogrammed to look for particular signals. The system and method receives all of the emitted electromagnetic signals emitted from area of interest. The system and method next performs high order statistical analysis on the received signals and determines which signals emanate from possible targets of interest and which likely emanate from background clutter/noise by comparing the relative degrees of Gaussianness of the signals (for example using entropy measurements). The least Gaussian signals are deemed to likely be signals from potential targets of interest while those which are more Gaussian are deemed to be likely from background clutter or noise.

The invention belongs to the technical field of communication, and particularly relates to a specific emitter identification method based on an Allan variance. According to the specific emitter identification method based on the Allan variance, different nonlinear characteristics brought by a nonlinear device in an actual radiation source are utilized. In fact, different radiation sources are taken as different nonlinear systems in the method, and the Allan variance is used for extracting characteristics of the nonlinear systems based on the principle, so that different systems are identified.An Allan standard deviation obtained by calculation under different correlation time has different meanings, a characteristic vector is formed by using the Allan standard deviation under three correlation time, and the identification effectiveness is enhanced.

Techniques are described to collect data via a client device, such as a mobile phone. The data, referred to as “lifespace data,” comprises one or more measurements of an individual's functionality, a transmitter identification associated with a transmitter positioned in a discrete area (e.g., a room in a subject's residence), and a timestamp indicating when the transmitter identification was transmitted or received. One or more transmitters can be positioned in one or more discrete areas (e.g., throughout an individual's residence or workspace), with each transmitter configured to transmit a unique transmitter identification. In implementations, a transmitter comprises a Bluetooth beacon, and a transmitter identification comprises a Bluetooth identification number. The client device may be configured to provide the lifespace data to a server for storage, analysis, and intervention functionalities.

The invention discloses an automatic forging temperature collection system which comprises temperature sensors, a computer, an emitter and a receiver. The temperature sensors are connected with the emitter to collect tapping temperature data of a forging and temperature data of the forging after forging; the emitter is wirelessly connected with the receiver, and sends the tapping temperature data of the forging and the temperature data of the forging after forging to the receiver wirelessly; and the computer is in communication connection with the receiver via a USB interface to collect the temperature data of the forging and an identification of the emitter, mark the temperature data and identification with time, and pack and store the data and identification into the database. According to the invention, the tapping temperature and the temperature after forging of the forging can be collected and recorded automatically, help is provided for automatic temperature control, the measuring data is accurate, errors are low, and the temperature data is sent and received wirelessly and can be displayed in real time in a host computer.

The invention discloses a multi-level regulating switch based on the start of iris identification. The switch includes a multi-level regulating switch and an iris identifier which is connected to the multi-level regulating switch. The iris identifier includes: (1) a sampling module; (2) a pre-processing module; (3) a feature coding module which is intended for extracting and coding the features of an iris image and includes a first LBP operator processing sub-module, a second LBP operator processing sub-module, a third LBP operator processing sub-module and a fourth LBP operator processing sub-module; and (4) a coding matching module. According to the invention, the switch increases the association between a center point and other neighboring domains in the periphery thereof, and can meet the demands of image textures having different sizes and frequencies. The switch does not effect the association between the center point and the neighboring domains in the periphery thereof, can continuously reduce coding length, saves storage space, reduce computing amount, increases identification speed, improves identification accuracy, and obtains higher robustness.