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1535 results about "Signalling system" patented technology

Signalling Systems. Railway signalling is the system used on railways to direct rail traffic and to keep trains a safe distance apart from each other, as well as to ensure trains run according to schedule. Signalling ensures safe and smooth operation by separating trains, ensuring they have enough braking distance to stop,...

Method for software driven generation of multiple simultaneous high speed pulse width modulated signals

Systems and methods can provide, in one aspect, a method for modulating the pulse width of control signals generated on a plurality of separate channels. In one practice, the methods described herein are suitable for execution on a microprocessor or micro controller platform that includes a timer interrupt mechanism which will generate an interrupt in response to a timer counting down a selected time interval or time period. In one practice, the timer is set to count down a period of time that is representative of a portion, or sub period, of the PWM cycle. Upon expiration of that time period, the timer executes an interrupt that causes the micro controller to enter an interrupt service routine (ISR) that can further modulate the PWM cycle of one or more signals.
Owner:PHILIPS SOLID STATE LIGHTING SOLUTIONS

Improving signal integrity in differential signal systems

Over-terminating the differential mode impedance of a differential transmission line, such as an INFINIBAND™ cable, at the receiving end, improves the differential signal integrity for typical variations in termination network impedance component (e.g., resistor) and transmission line characteristics. Eye opening of the differential signal can be made larger with reduced attenuation but increased jitter compared to under-terminating the differential mode impedance. Because the differential signal quality (larger eye opening) is improved, data can be transmitted over a longer transmission line with the same transmitter and receiver.
Owner:VALTRUS INNOVATIONS LTD

Method, apparatus and computer program product for determination of noise in mixed signal systems

A simulation system is described for computing the overall signal generated in a substrate by a digital system comprising a plurality of gates associated with the substrate, wherein each gate is configured to perform a switching event. Output of a transistor-level model is compared with output of a lumped circuit model for each gate and the substrate, and signal contributions from each gate and switching event are determined based on the comparison. The system determines switching event signals for each of the plurality of gates. The signal contributions and the switching event signals are combined, and a combined lumped circuit model is derived based on a combination of lumped circuit models of the plurality of gates. The overall signal is computed based on the combined gate signal contributions and switching event signals, which are configured as an input to the combined lumped circuit model.
Owner:INTERUNIVERSITAIR MICRO ELECTRONICS CENT (IMEC VZW)

Agent delivery systems and related methods under control of biological electrical signals

Systems and methods are disclosed for detecting neural, biological, or other electrical signals generated within a patient's body and processing those signals to generate a control signal that may control the delivery of a biologic, therapeutic, or other agent, such as a drug. Embodiments include a system having a sensor implanted in a patient's brain to detect neural signals used to control delivery of a drug to the patient. The system may also control an internal and / or external device, such as a prosthetic limb, and control delivery of a drug to increase the performance of the system and / or the controlled device.
Owner:CYBERKINETICS

Methods and systems for analysis of physiological signals

Systems and methods are provided for processing and analyzing signals reflecting, physiologic processes and events in a monitored subject, especially cardio-pulmonary signals. The input signals are analyzed by in a physiological domain by creating structured data representing the physiological events reflected in the signals. Preferably, first, primitive event objects are created representing physiologically-significant portions of these input signals; second, the primitive event objects are grouped into primary event objects representing actual physiologic processes and events. Next, all objects are stored in databases, and organized in containers for efficient searching. Information may be retrieved by creating view objects which associate physiologic event objects having selected properties specified directly in physiological terms. This invention includes methods for performing the above analysis, systems and program products for carrying out these methods, and databases configured with the stored objects and views.
Owner:VIVOMETRICS INC

Method and apparatus for processing electrochemical signals

Systems and methods are provided herein for improving the selectivity and productivity of sensors via digital signal processing techniques. According to one illustrative embodiment, in an electrochemical method for monitoring of a select analyte in a mixed sample with an interfering analyte, an improvement is provided that includes applying a large amplitude potential stimulus waveform to the sample to generate a nonlinear current signal; and resolving a signal contribution from the select analyte in the generated signal by a vector projection method with an analyte vector comprising a plurality of real and imaginary parts of one or more Fourier coefficients at one or more frequencies of a reference current signal for the select analyte.
Owner:AGAMATRIX INC

Mapping function and method of transmitting signaling system 7(SS7) telecommunications messages over data networks

A mapping function and method for mapping a Signaling System 7 (SS7) telecommunication signaling message from a Signaling Connection Control Part (SCCP) protocol layer to an Internet Protocol (IP) protocol layer in order to transmit the SS7 signaling message over a data network from an origination node to a destination node. The mapping function receives the SS7 signaling message from the SCCP protocol layer by sending and receiving Message Transfer Protocol (MTP) primitives from the mapping function to the SCCP protocol layer. The mapping function then maps the received SS7 signaling message into an IP message by mapping MTP primitives into IP primitives, mapping the SS7 message address into an IP message address, and utilizing a user interface to set IP protocol parameters that cannot be transferred by the SCCP protocol layer. The mapping function then sends the mapped IP message to the IP protocol layer by sending and receiving IP primitives from the mapping function to the IP protocol layer.
Owner:TELEFON AB LM ERICSSON (PUBL)

Smart car with automatic signalling

InactiveUS20140309855A1Reduces cost and size and complexity and wire count and weightEnhanced signalDigital data processing detailsOptical signallingDriver/operatorEngineering
An intelligent turn signaling system is disclosed which uses trip information and global positioning system data to automatically activate the turn lights for a vehicle. In one implementation, the system can optimize vehicular flow by receiving trip information from nearby vehicles and prepare the vehicle and driver accordingly. In other implementations, the system can also optimize insurance premium for drivers who allow the system to recommend conservative driving techniques.
Owner:TRAN BAO

Power signaling based technique for detecting islanding conditions in electric power distribution systems

A signaling system for detecting power line discontinuity in a power distribution system having a local power generator in a feeder line employs a signal generator that provides a local generator control signal with a preset protocol continuously and is located in the power distribution system upstream of said local power generator. A power detector terminates the local generator control signal and a signal detector in said feeder line detects the presence of the signal and triggers the shutdown of the local generator when the signal is not detected by the signal detector for a predefined period of time.
Owner:ALBERTA UNIV OF

Method and apparatus for evaluating and calibrating a signaling system

A method and apparatus for evaluating and calibrating a signaling system is described. Evaluation is accomplished using the same circuits actually involved in normal operation of the signaling system. Capability for in-situ testing of a signaling system is provided, and information may be obtained from the actual perspective of a receive circuit in the system. A pattern of test information is generated in a transmit circuit of the system and is transmitted to a receive circuit. A similar pattern of information is generated in the receive circuit and used as a reference. The receive circuit compares the patterns. Any differences between the patterns are observable. Preferably, the patterns are repeating patterns that allow many iterations of testing to be performed. In one embodiment, a linear feedback shift register (LFSR) is implemented to produce patterns. Information obtained from testing may be used to assess the effects of various system parameters, including but not limited to output current, crosstalk cancellation coefficients, and self-equalization coefficients, and system parameters may be adjusted to optimize system performance. An embodiment of the invention may be practiced with various types of signaling systems, including those with single-ended signals and those with differential signals. An embodiment of the invention may be applied to systems communicating a single bit of information on a single conductor at a given time and to systems communicating multiple bits of information on a single conductor simultaneously.
Owner:RAMPART ASSET MANAGEMENT LLC

Apparatus and method for signaling system information

The present disclosure relates to a communication method and system for converging a 5th-generation (5G) communication system for supporting higher data rates beyond a 4th-generation (4G) system with a technology for internet of things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method for receiving system information (SI) by a user equipment (UE) in a wireless communication system is provided. The method includes receiving, from a base station (BS), first type SI associated with SI which is essential for communication with the BS, transmitting, to the BS, a physical random access channel (PRACH) preamble based on the first type SI, receiving, from the BS, a random access response (RAR) message, and receiving, from the BS, second type SI associated with at least one SI which the UE needs.
Owner:SAMSUNG ELECTRONICS CO LTD

Terminal -to-terminal communication connection control method using IP transfer network

Both a connection server and a relay connection server are installed in an IP transfer network; a function similar to a line connection control of a subscriber exchanger is applied to a connection server; a function similar to a line connection control of a relay exchanger is applied to the relay connection server; and a terminal-to-terminal communication connection control method with using the IP transfer network is realized in such a manner that a telephone set and a terminal such as an IP terminal and a video terminal transmit / receive an initial address message, an address completion message, a call pass message, a response message, a release message and a release completion message, which can be made in a 1-to-1 correspondence relationship with line connection control messages of the common line signal system. Furthermore, while an address administration table is set to a network node apparatus of an IP transfer network, means for registering addresses of the terminals into this address administration table is employed, so that an IP packet communication by a multicast manner can be realized with improving information security performance.
Owner:DISTRIBUTION SYST RES INST THE AN UNDIVIDED 60 INTEREST +1

Systems and methods for indoor geolocation based on yield of RF signals

Systems and methods are disclosed herein for determining a user's location within an indoor environment. In particular, the system receives a location request including a set of radio frequency signal data collected by a mobile device inside of an indoor environment. Using this data set, the system first selects a map from a plurality of maps stored in a map database. The system then processes the data to identify the user's location on the selected map. The system uses yield information associated with the received signals in determining the map that the user is on, the user's location on the map, or both the map and the user's location to filter out transient signals and identify those signals that are reliably indicative of the user's location.
Owner:LIGHTHOUSE SIGNAL SYST

Adaptive receivers for bit rate agile (BRA) and modulation demodulation (modem) format selectable (MFS) signals

Systems, apparatus, and methods for new generations of wireless systems, including multiple standard, interoperable Third-Generation (3G) and Second-Generation (2G), Spread Spectrum CDMA, WCDMA, GSM, Enhanced GSM systems and CSMA, TDMA and OFDM. Bit Rate Agile (BRA), Modulation and Code Selectable processing techniques of Gaussian Minimum Shift Keying (GMSK), Quadrature Phase Shift Keying (QPSK), Quadrature Amplitude Modulation (QAM), and of Mis-Matched demodulator filters in which the demodulator filter set is mismatched to the filter set of the signal modulator.
Owner:FEHER KAMILO

Method for a changing safety signaling system

The present invention provides a method for a changing safety signaling system. The safety signaling system can change as a result of changing driving conditions that stem from changes in the weather or changes in vehicle velocity. As a vehicle brakes, coasts, turns, or accelerates, front-facing, side-facing, top-facing, and / or rear facing indicators can communicate vehicular acceleration, coasting, and braking to a pedestrian or other vehicles. A distance sensor can be used to trigger a signal to alert a second vehicle that the first vehicle is braking hard and slowing fast or can be used to warn the operator of the first car that a collision may be imminent and can be used to warn the operator of a second car that measures can be taken to avoid a collision or minimize damage from a collision. The instant invention can be utilized by either a first car or a second car.
Owner:SONG WON MOO

Systems and methods for flyback power converters with switching frequency and peak current adjustments based on changes in feedback signals

System and method for regulating a power converter. The system includes a first comparator configured to receive a first input signal and a second input signal and generate a first comparison signal based on at least information associated with the first input signal and the second input signal, a pulse-width-modulation generator configured to receive at least the first comparison signal and generate a modulation signal based on at least information associated with the first comparison signal, a driver component configured to receive the modulation signal and output a drive signal to a switch to adjust a primary current flowing through a primary winding of the power converter, and a voltage-change-rate detection component configured to sample the feedback signal to generate a first sampled signal for a first modulation period and to sample the feedback signal to generate a second sampled signal for a second modulation period.
Owner:ON BRIGHT ELECTRONICS SHANGHAI

Detection of heart failure decompensation based on cumulative changes in sensor signals

Systems, devices and methods provide for evaluation of heart failure symptoms. Sensor data associated with one or more symptoms of heart failure are acquired and trended. Statistical features, such as slope, are extracted from the data trend in a moving window and are used to develop a cumulative sum. The cumulative sum is compared to a threshold value or V-mask to detect a shift in cumulative sum indicating changes in heart failure symptoms. A shift beyond the threshold value may trigger an alert or implementation of therapy.
Owner:CARDIAC PACEMAKERS INC

Door signaling system

A door signaling system can warn a forklift driver on one side of a closed door that a pedestrian may be on the other side, thereby averting a collision between the forklift and the pedestrian. In some embodiments, the signaling system includes an elongate light prominently disposed along a perimeter of the doorway. In response to the pedestrian being at the door or in response to some other predetermined door-related event, the light warns the forklift driver of the situation or event. In some embodiments, the signaling system warns the driver by sounding a horn on the driver's vehicle or by shining a light upon tile door or against the floor.
Owner:RITE HITE HLDG CORP

Multiplexed digital assays with combinatorial use of signals

System, including methods, apparatus, and compositions, for performing a multiplexed digital assay on a greater number of targets through combinatorial use of signals.
Owner:BIO RAD LAB INC

Method for detecting the extent of clear, intact track near a railway vehicle

A method is provided for detecting broken rail, track continuity, and track occupancy ahead of or behind a railroad vehicle traveling in fixed-block territory equipped with an AC track code wayside signal system or cab signal overlay system, and a communications link. This method, when used as an integral part of a communications-based train control (CBTC) or positive train control (PTC) system, allows immediate, automatic detection of broken rail, track occupancies, or open turnouts ahead of or behind a train in an occupied block. It also facilitates true moving-block or virtual block CBTC or PTC, thereby enabling higher efficiency and track utilization.
Owner:TRANSPORTATION TECH CENT

Wireless traffic signal system and method thereof cooperated with vehicle tracks at intersections

The invention relates to the technical field of traffic control, in particular to a wireless traffic signal system and a method thereof cooperated with vehicle tracks at intersections. The invention adopts a special short-range communication mechanism. The system comprises intersection transmitting equipment, vehicle receiving equipment, a singlechip, voice output equipment, GPS (Global Position System) equipment and a vehicle display. The singlechip carries out data fusion processing on real-time traffic information and the longitude and the latitude of vehicles to obtain information of traffic signal lamps on the vehicle tracks and outputs the information to the vehicle display. The method comprises the step that the singlechip carries out data fusion on information of an electronic map, a real-time traffic lamp signal, vehicle track positioning and traveling direction and displays the traffic signal on the electronic map when the vehicles enter the communication range of a special short-range communication technology. The invention can ensure that the traffic signal is transmitted to the vehicles through the system under the condition that a driver cannot clearly see the front signal lamps and thereby the driver can clearly know about the current contents displayed by the traffic signal lamps by using a display or voice prompt system.
Owner:WUHAN UNIV OF TECH

Method and device for calculating bit error rate of received signal

System and method of estimating radio channel bit error rate (BER) in a digital radio telecommunications system wherein the soft output of the turbo decoder is used as pointer or index to look-up-tables containing the bit-wise BER of a certain bit in the data field of the received frame. A quantizer quantizes the received data frame and the quantized bit operates on a switch which selects the appropriate look-up-table. By means of accumulation and scaling the average BER of a certain amount of bits are calculated. Decoding bit-errors may occur but as they are submitted to posterior probability estimation, systematic errors which normally happen at low SNR are avoided.
Owner:UNWIRED PLANET

Methods, systems, and computer program products for organizing, managing, and selectively distributing routing information in a signaling message routing node

Methods, systems, and computer program products for managing and selectively distributing routing information in a routing node are disclosed. In one implementation, a method for selectively distributing routing information in a routing node includes organizing internal signaling resources are organized so as to facilitate the efficient mapping of signaling system 7 (SS7) message transfer part (MTP) signaling protocol attributes to Internet protocol (IP)-based signaling resources. A routing status information sharing hierarchy is defined, which enables routing status information to be efficiently shared among members of a signaling mateset group. Members of a signaling mateset replicate and distribute SS7 MTP network management information across non-MTP signaling connections, such as IP connections.
Owner:TEKELEC GLOBAL INC

Driving skill recognition based on vehicle left and right turns

A system that classifies driver driving skill based on left / right turning maneuvers. The system reads sensor signals for vehicle speed and vehicle yaw rate. The system determining that the vehicle has made a left / right-turn maneuver using the vehicle speed signal and the yaw-rate signal and then classifies the driver's driving skill using selected discriminant features obtained or derived from the left / right-turn maneuver.
Owner:GM GLOBAL TECH OPERATIONS LLC

Methods and systems for off-loading a-interface short message service (SMS) message traffic in a wireless communications network

A signaling message processing and routing node intercepts and routes signaling system 7 (SS7)-based signaling messages received from the base station controller (BSC) component of a base station system (BSS) via an A-interface link interface. The A-interface normally connects a BSC node to a mobile switching center (MSC) node. Upon determining that a signaling message received from a BSC node via an A-interface link is an SMS-related message, the SMS message is routed towards the appropriate destination without involving the MSC node connected to the BSC. The SMS message may be encapsulated within an Internet protocol (IP)-based transport adapter layer interface (TALI) protocol packet and transmitted into an IP network. As a result, MSC resources are conserved.
Owner:TEKELEC GLOBAL INC

Automatic test system and method for intelligent substation interval device

ActiveCN102291277ASimplify field signal-to-pointComprehensive verification of functional signalsData switching networksControl layerElectric power system
The invention discloses an automatic test system for an intelligent substation spacing apparatus in the technical field of power systems, comprising: a test system control module and a test terminal connected with the same. In the system, signal authentication and input and output of test data are finished by establishing an input / output signal system at outside of the apparatus; signal pair point test of an apparatus station control layer is finished by a simulated MMS (Multimedia Messaging Service), analog input of the input signal of the apparatus is finished by a Goose / SMV process layer simulator, and behavior result of the apparatus is judged by monitoring a test closed loop network message; and different target test data object test cases are configured, the test data is input via the simulator so as to monitor behavior and response of the apparatus.
Owner:上海思源弘瑞自动化有限公司

Test system and method of data-driven vehicle-mounted operation control system

The invention discloses a test system and method of a data-driven rail traffic vehicle-mounted operation control system, belonging to the technical field of rail traffic signal system test. The test system comprises a test management module, a test execution module, a test interface adaption module and a test analysis and assessment module and is connected with a tested vehicle-mounted operation control system by the test interface adaption module, wherein the test management module finishes the functions of storing, modifying and configuring test data, the test execution module finishes the function of executing the test data, the test analysis and assessment module finishes the functions of recording, treating, analyzing and assessing the test data, and the test interface adaption module finishes the functions of adapting to the interface characteristics of real tested vehicle-mounted equipment and interacting practical information with the tested equipment. The invention can be conveniently used for various types of tests on the vehicle-mounted equipment of a train operation control system, wherein the tests comprise function test, interconnection test and the like; and in addition, the invention has good popularity and flexibility.
Owner:BEIJING JIAOTONG UNIV

CBTC (Communications Based Train Control) signal system simulation testing platform

The invention provides a CBTC (Communications Based Train Control) signal system simulation testing platform, which comprises a signal bus, a simulation vehicle-mounted and simulation vehicle system, a simulation station, a simulation rail side system, a three-dimensional vision system and a testing platform management system, wherein the simulation vehicle-mounted and simulation vehicle system, the simulation station, the simulation rail side system, the three-dimensional vision system and the testing platform management system are mutually connected through the signal bus. By applying the invention, an integral solution including vehicle, scheduling and signal systems can be checked and demonstrated; a signal system can be subjected to function and performance tests indoors, and failure injection conditions which can not be simulated in various sites can be carried out indoors, thus testing means are enriched and safety of the system is improved; and simulation checking under the condition of multiple vehicles can be passed, a method for analyzing the railway operation capability is deeply researched, and the reference is provided for the layout of signal devices.
Owner:TRAFFIC CONTROL TECH CO LTD

Signaling safety system

The present invention is a signaling system for a motorcycle or bicycle providing a light indication to other motorists. An indication mechanism is attached to a garment of the rider. The indication mechanism has at least two banks of LEDs arrays and a wireless radio receiver. A signal interface is linked to the wiring system of the motorcycle light system. The signal interface intercepts signals transmitted on the wiring system of the motorcycle light system. The system also includes a wireless radio transmitter in communication with the signal interface. When the signal interface detects a signal sent through the wiring system of the motorcycle, the signal interface sends a signal via the transmitter to the receiver of the indication mechanism. The indication mechanism then illuminates the appropriate bank of LED arrays to provide a light indication to warn other motorists. In an alternate embodiment of the present invention, the indication mechanism may be worn by a cyclist. The signal interface may communicate with a sensing device which receives signals from a braking mechanism of the bicycle. When the braking mechanism is actuated, the sensing device senses the braking action and sends a signal via the transmitter to the receiver of the indication mechanism, which in turn illuminates the LED arrays. Alternately, rather than utilizing a signal interface, the indication mechanism may include an accelerometer to detect deceleration of the bicycle.
Owner:PERKINS BARRY +1
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