46results about How to "Optimize system design" patented technology

The gap indicator includes a surround sensor system for recording the traffic surround field including the traffic in at least one adjacent lane, an identification device for determining gaps in the traffic sufficient for a lane change, and a dialog device for the output of detailed driving instructions to the driver of the host motor vehicle.

In a mobile communications system, its power consumption and time required for a mobile station to carry out neighboring cell search are reduced, and the complicated process involved in system design and management is simplified. A method is proposed of searching for a neighboring cell by using grouped channel identifiers sent from the sectors to the mobile station in the mobile communications system that allows the mobile station communicating with a plurality of base stations to decide sectors the mobile station waits for or communicates with. It includes the step of assigning channel identifiers belonging to the same group to sectors of the same base station, and the step of sending from the base station to the visiting mobile station a notification of anyone of the channel identifiers assigned to the sectors of one of neighboring base stations.

A control circuit is employed for controlling a wireless power receiving apparatus that receives an electric power signal from a wireless power transmission apparatus. An electric power detection unit detects the received electric power PRX received by the wireless power receiving apparatus. A control unit generates a control signal CE for controlling the electric power PTX to be transmitted by the wireless power transmission apparatus. When the received electric power PRX detected by the electric power detection unit falls despite the control signal CE not indicating an instruction to lower the electric power PTX to be transmitted, an abnormal state judgment unit judges that an abnormal state has occurred.

In the present invention, by forming a dispersion shifted optical fiber that has a refractive index profile comprising: a central core portion 1; a step core portion 2 provided at an outer periphery of the central core portion 1 and having a refractive index lower than that of the central core portion 1; and cladding 7 provided at an outer periphery of the step core portion 2 and having a refractive index lower than that of the step core portion 2, and which dispersion shifted optical fiber has, in a used wavelength band that is selected from between 1490 and 1625 nm, chromatic dispersion values of 7 to 15 ps / km / nm, an Aeff of 60 to 150 mum2, a dispersion slope of 0.09 ps / km / nm2 or less, a bending loss of 100 dB / m or less, and a cutoff wavelength that provides essentially single mode transmission, it is possible to reduce the cost of the system and to achieve n improvement in the transmission characteristics.

A positive counter starts counting, starting with an initial value, upon receiving a positive edge of a dimming pulse signal. A negative edge counter starts counting, starting with an initial value, upon receiving a negative edge of the dimming pulse signal. For each i-th (2≦i≦n) channel, the phase shift amount is calculated by multiplying a period count value that indicates the period of the dimming pulse signal by (i−1) / n. When the count value matches the phase shift amount, a burst control signal is switched to a first level. When the count value matches the phase shift amount, the burst control signal is switched to a second level.

The system design is facilitated by eliminating the increase in data transfer volume of the whole system. In order to facilitate the system design, there are provided an operation unit array, a memory array, a data transfer circuit, and a switch circuit. There are also provided a configuration data management unit for managing the configuration data defining the logical behaviors of the operation unit array, the memory array, the data transfer circuit, and the switch circuit, as well as a state transition management unit capable of controlling the switching of the configuration data. The data transfer circuit includes a control circuit capable of autonomously sorting the data by determining the timing of the data sorting according to the setting included in the configuration data.

The present application discloses a current equalizing busbar for a converter comprising: a direct current busbar connected to a DC terminal of the converter and positive terminals and negative terminals of respective power modules; and an alternate current busbar connected to AC terminals of the respective power modules and a load; wherein, when the converter operates, a sum of an inductance caused by the DC busbar between the DC terminal and a positive terminal or a negative terminal of a power module and an inductance caused by the AC busbar between the load and an AC terminal of the power module is equal to a sum of an inductance caused by the DC busbar between the DC terminal and positive terminals or negative terminals of other power modules and an inductance caused by the AC busbar between the load and AC terminals of said other power modules.

A system and method for measuring the speed of a fan in an electrical system is presented. The duty cycle of a pulse width modulated (PWM) signal provided by a signal generator may control the speed of the fan. The fan may generate tachometer pulses that may be used by a tachometer reading-unit to monitor the RPM of the fan. Very low frequency test (VLFT) pulses may be generated and provided through a sampling signal multiplexed with the PWM signal to sample the fan generated tachometer pulses even when the PWM signal is low. The frequency of the sampling signal may be determined based on the duty cycle of the PWM signal and may be dynamically updated when the duty cycle of the PWM signal is updated. The sampling signal may be used as the clock input to a flip-flop with the tachometer pulses as the data input, and the output of the flip-flop providing an input to a pulse counter that counts the number of pulses within a determined period of time, providing as its output the measured RPM of the fan.

An optical transceiver includes N transmitters each transmitting one of N transmitted optically bound channels; a clock forwarding mechanism to transmit a transmitted optical clock signal to an opposing optical receiver; N receivers each receiving one of N received optically bound channels; and a clock recovery mechanism to receive a received optical clock signal from the opposing optical transmitter. A method and photonically integrated system are also disclosed. The optical transceiver, method, and system optimize system design of WDM highly parallelized transceivers with optical bound channels, a simplified clocking architecture, and boosted receiver sensitivity. The optical transceiver, method, and system include clock recovery followed by data recovery and can utilize integrate-and-dump optical receivers with a recovered clock.

A system and method for measuring the speed of a fan in an electrical system is presented. The duty cycle of a pulse width modulated (PWM) signal provided by a signal generator may control the speed of the fan. The fan may generate tachometer pulses that may be used by a tachometer reading-unit to monitor the RPM of the fan. Very low frequency test (VLFT) pulses may be generated and provided through a sampling signal multiplexed with the PWM signal to sample the fan generated tachometer pulses even when the PWM signal is low. The frequency of the sampling signal may be determined based on the duty cycle of the PWM signal and may be dynamically updated when the duty cycle of the PWM signal is updated. The sampling signal may be used as the clock input to a flip-flop with the tachometer pulses as the data input, and the output of the flip-flop providing an input to a pulse counter that counts the number of pulses within a determined period of time, providing as its output the measured RPM of the fan.

Methods and apparatus for performing formal verification of a system defined by a set of automata are useful in facilitating computing efficiencies during the verification of an incremental system design. The various embodiments permit computing efficiencies by saving information generated during a verification of the system for use in subsequent verification runs. The saved information includes calculation results pertaining to instances or elements of the system that do not require modification for the next subsequent verification.

A control circuit is employed for controlling a wireless power receiving apparatus that receives an electric power signal from a wireless power transmission apparatus. An electric power detection unit detects the received electric power PRX received by the wireless power receiving apparatus. A control unit generates a control signal CE for controlling the electric power PTX to be transmitted by the wireless power transmission apparatus. When the received electric power PRX detected by the electric power detection unit falls despite the control signal CE not indicating an instruction to lower the electric power PTX to be transmitted, an abnormal state judgment unit judges that an abnormal state has occurred.

The invention discloses a coal economizer for a power station boiler. The coal economizer comprises a water supply pipeline (4), an inlet header (1), a heat transfer face (2), an outlet header (3) and an outlet pipeline (8), wherein flue gas flows outside the heat transfer face to heat up water, a first bypass duct (5) which is used for connecting the water supply pipeline (4) and the outlet pipeline (8) is arranged between the water supply pipeline (4) and the outlet pipeline (8), and a bypass temperature adjusting device (9) is arranged on the first bypass duct (5). According to a system of the coal economizer, the traditional system design is improved, and the coal economizer has a function of temperature adjustment at the same time when the coal economizer can reduce the temperature of the flue gas at an outlet of the boiler and increase the water supply temperature.

The invention discloses an endoscopic image capturing system and method. The system comprises an endoscopic capsule device, a wireless medium device and a portable electronic device. The endoscopic capsule device can be provided for a user to swallow so as to shoot a plurality of images. The wireless medium device can receive images obtained by the endoscopic capsule device in a wireless transmission manner. The portable electronic device can be connected to the wireless medium device in a wired or wireless manner, so as to receive and store the images, and can provide electricity for the wireless medium device. The portable electronic device has an image processing function and can be used for analyzing the obtained images. The portable electronic device and the wireless medium device are designed in pairs, and the wireless medium device is selectively plugged in the portable electronic device.

The invention discloses a garnet type current sensor and a manufacturing method of a garnet module. The sensor is formed by a light source, an input polarization maintaining optical fiber, an input optical collimator, a polarizer, the garnet module, an analyzer, an output optical collimator, an output polarization maintaining optical fiber and a detector in a connected mode. The garnet module is a core part of the sensor, and a bias film layer capable of solidifying an initial magnetization direction of a garnet material is coated on the garnet module. The garnet type current sensor uses the detector to directly detect changes of a Faraday rotation angle of incident light caused by current changes, and current parameters can be indirectly obtained. Garnet which is provided with high Verdet constant, high transmittance, low temperature coefficient and good mechanical and physical optic performance serves as a core sensing element, and the bias film layer is coated on the garnet to correct system light paths, so that sensitivity of the garnet type current sensor is substantially improved, and system errors are reduced.

The present application discloses a current equalizing busbar for a converter comprising: a direct current busbar connected to a DC terminal of the converter and positive terminals and negative terminals of respective power modules; and an alternate current busbar connected to AC terminals of the respective power modules and a load; wherein, when the converter operates, a sum of an inductance caused by the DC busbar between the DC terminal and a positive terminal or a negative terminal of a power module and an inductance caused by the AC busbar between the load and an AC terminal of the power module is equal to a sum of an inductance caused by the DC busbar between the DC terminal and positive terminals or negative terminals of other power modules and an inductance caused by the AC busbar between the load and AC terminals of said other power modules.

The invention discloses an angle measurement system based on linear Hall sensors and an angle measurement method. The angle measurement system comprises four linear Hall sensors, four potentiometers, an AD sampling apparatus, a microprocessor and a display, and is characterized in that the four linear Hall sensors are sequentially arranged along a circumference, two adjacent linear Hall sensors are orthogonally placed, two opposite linear Hall sensors are placed in a directly facing manner, and a central axis of a radial magnetization magnet passes the center of the circumference along which the four linear Hall sensors are arranged and is perpendicular to the circumference. A signal output end of each linear Hall sensor is connected with a first fixed end of the corresponding potentiometer, second fixed ends of the four potentiometers are grounded, sliding ends of the four potentiometers are connected to four sampling channels of the AD sampling apparatus, and the microprocessor calculates a rotation angle according to ADC data and outputs the calculated rotation angle to the display. A defect of narrow measurement range of a traditional angle measurement method is overcome, and measurement for angles within a range of 0-360 degrees is realized.

The present invention is a project management tool uniquely suited to define and develop significant system events that can be effectively used as system test points to measure the performance and determine whether the system under design is meeting key design requirements. This methodology utilizes Synch Points in a state diagram to provide a directed graph notation and to generate a system timeline execution model automatically. The state diagram provides an improved means to decompose system event times into mechanical motion times, move transition latency times, and application software latency times. The system timeline execution model data is fed into a simulation engine to verify that the system timeline execution model is executable and confirms the dependencies are complete and accurate.

In an optical transmission system, operations of certain elements are adjusted in an individualized manner after detecting a change in the total optical power level corresponding to multiple optical channels in a link of the system in order to control transients in those channels. For example, in response to a sudden drop in the number of channels resulting from a fiber cut, the power levels of the optical pumps in a Raman amplifier in an OADM are adjusted to reduce transient gain errors in the surviving channels, where the adjustment to the pump power level for each different optical pump is a function of both the detected change in the total optical power level and at least one specified coefficient for that particular optical pump, in order to handle non-linearities in the response of the Raman amplifier to the sudden drop in the number of optical channels.

In an optical transmission system, operations of certain elements are adjusted in an individualized manner after detecting a change in the total optical power level corresponding to multiple optical channels in a link of the system in order to control transients in those channels. For example, in response to a sudden drop in the number of channels resulting from a fiber cut, the power levels of the optical pumps in a Raman amplifier in an OADM are adjusted to reduce transient gain errors in the surviving channels, where the adjustment to the pump power level for each different optical pump is a function of both the detected change in the total optical power level and at least one specified coefficient for that particular optical pump, in order to handle non-linearities in the response of the Raman amplifier to the sudden drop in the number of optical channels.

A base station may include an interface section, a master receive processor, and a slave receive processor. An interface section may receive data from a higher rank station in the mobile communication system, the data may be received over a leased line. The master receive processor may receive the data from the higher rank station, determine whether the data from the higher rank station includes information destined for the base station, and terminate the data at the base station when the data from the higher rank station is determined to include information destined for the base station. The slave receive processor may receive the data from the higher rank station, determine whether the data from the higher rank station includes information destined for another base station, and transmit, over the leased line, the data to the another base station when the data from the higher rank station is determined to include information destined for the another base station.

A system and method for protecting register write operations, especially register write operations performed in a USB PHY. A USB transmitter / receiver, operable to receive a register write command from a USB LINK device, may monitor the write sequence initiated by the register write command to determine if / when the register write sequence has been interrupted. In monitoring the register write sequence, the USB transmitter / receiver is operable to discard the register write command if a DIR signal issued by the USB transmitter / receiver is asserted during the register write sequence and / or if an STP signal received by the USB transmitter / receiver is asserted during the register write sequence, where STP may be part of a normal register write operation. The USB transmitter / receiver is further operable to allow the register write sequence to complete if the STP signal and the DIR signal are not asserted during a predetermined period of the register write sequence. The monitoring functions may be implemented in a finite state machine comprised in the USB transmitter / receiver.

A microprocessor has a register in which attributive data corresponding to a memory to be coupled to the microprocessor is written, and a control circuit which controls address signals to be supplied to the memory in accordance with the attributive data. The attributive data is composed of range data for discriminating ranges of address data supplied to an address bus, system data indicative of addressing systems of the memories corresponding to the respective address ranges, and bit number data indicative of numbers of address bits of the memories. Thus, in a case where the memory to be accessed is of an address multiplexing system as in a dynamic RAM, the address data of the address bus is divided into row address data and column address data, which are then supplied to the memory in time division.

The invention relates to a long-distance sensing device combining an energy conversion sensor and an optical fiber. The long-distance sensing device comprises a sensing head, a host and a connection cable 5, wherein the sensing head comprises a current or voltage output energy conversion sensor 1 and an electricity and light conversion unit 2, the host comprises a photoelectric conversion unit 3 and a signal analysis and processing unit 4, and the connection cable 5 communicates the sensing head and the host. The energy conversion sensor 1 carries out corresponding current output when sensing changes of a physical quantity, and the output currents are used for driving the electricity and light conversion unit 2. Optical signals produced by the electricity and light conversion unit 2 are transmitted in a long distance through the connection cable 5 and then returned to be electric signals through the photoelectric conversion unit 3, signal analysis is carried out in the signal analysis and processing unit 4 and accordingly the measured physical quantity is analyzed. The long-distance sensing device is suitable for a large quantity of conventional energy conversion sensors so that the sensors can work in a long-distance environment without power supplies, has the advantages of being easy to install and high in adaptability, and brings great convenience for actual on-site installation and system design.