摘要:
A moving body detecting apparatus comprises a television camera for picking up an object and delivering video signals thereof, a memory for storing values of spatial filter function in corresponding relation to the picture elements of the television camera, a multiplier for multiplying the video signals by the spatial filter function read out from the memory in synchronism with scanning by the television camera, an integrator for integrating the multiplied signals for a required area, and a calculating device for calculating the desired information as to the moving body, such as its speed, from the result of integration.
摘要:
A resistor built-in spark plug comprising an insulator formed therein with an axially extending bore, a terminal nut fitted in an upper end portion of the bore, a center electrode fitted in a lower end portion of the bore, a resistor arranged in a central portion of the bore, one copper-glass electrode interposed between the resistor and the terminal nut, and another copper-glass electrode interposed between the resistor and the center electrode, such resistor being made by firing (calcining) and solidifying a resistor powder mixture consisting of 30 to 10 volume % of a principal resistor component containing tin oxide, 35 to 85 volume % of insulating ceramic filler powder of a higher electric resistivity than the principal resistor component which is selected from the group consisting of quartz glass, alumina, zircon, zirconia, silica (SiO.sub.2) and .beta.-spodumene, and 35 to 5 volume % of glass powder having a softening temperature in a range between 300.degree. and 600.degree. C. One or both of the two copper-glass electrodes may consist of two electrode layers, one copper-glass layer maintained in contact wth the resistor and having a higher copper content than the other copper-glass electrode layer.
摘要:
The swinging operation of a rotary striker 14 turns micro switches 11 and 12, which detect the position of a piston 9, ON/OFF. The striker 14 includes a lower-limit switch cam 15 and an upper-limit switch cam 16. The cams 15 and 16 engage with switch bosses 36 and 37 that move together with the piston 9. When the piston 9 is positioned at a lower-limit stop position L, the cam 15 becomes engaged with the boss 36 to make the striker 14 swing in the X-direction and pushes a switch button 11a of the switch 11. When the piston 9 is positioned at an upper-limit stop position U, the cam 16 becomes engaged with the boss 37 to make the striker 14 swing in the Y-direction and pushes a switch button 12a of the switch 12.
摘要:
In a communication system wherein a station transceiver and a plurality of nodes communicate in a TDM system through a signal transmission line, at least a part of the line is shared, a method to judge nodes performing normal operation from the station transceiver comprises a request step to request a return of a test pattern by transmitting a trigger signal for a designated node in the plurality of nodes, a correlation process step to process correlation between a received signal in a timeslot assigned to the designated node and a reference pattern corresponding to the designated node, and a judging step to judge whether the designated node is a normal node according to the correlation process result.
摘要:
To realize a highly reliable monitor control signal network at low costs, a data transmission system comprises a first network to optically transmit a data signal and a monitor control signal, first and second nodes connecting to the first network, and a second network capable of transmitting the monitor control signal. The first node comprises a demultiplexer to demultiplex the data signal and the monitor control signal out of the signal light from the first network, a signal distributor having a plurality of input ports and a plurality of output ports to distribute the data signal demultiplexed by the demultiplexer into designated output port, a controller to control the signal distributor and to monitor each part in the first node, a first selector to select one of the monitor control signal demultiplexed by the demultiplexer and the other monitor control signal entered from the second network and to apply the selected one to the controller, a second selector to output the monitor control signal output for the second node output from the controller toward one of the first network and the second networks, and a multiplexer to multiplex the monitor control signal output for the first network output from the second selector and the data signal output from the signal distributor and to output the multiplexed signals onto the first network.
摘要:
A Protection Primary state is newly defined. When the traffic route is switched by a ring interworking function, while APS is in operation, a protection primary node is caused to restore the service path.
摘要:
A charge-injected internal combustion engine exhibits improved starting performance with charge-injection timing control. A charge-injected internal combustion engine has an air-fuel injection valve for directly injecting a compressed air-fuel mixture into a combustion chamber. The engine is also provided with an air pump, driven by the crankshaft for discharging compressed air, and a timing controller for setting injection timing of the air-fuel injection valve. When initial startup of the engine is detected, the controller sets the injection timing to the intake stroke. When the engine reaches a predetermined engine speed, or when the pressure of the injection air reaches a threshold pressure where injection of the air-fuel mixture is possible on the compression stroke, the timing controller switches the injection timing from the intake stroke to the compression stroke.
摘要:
In SDH-based transmission systems with redundancy, in the event of failure in the service transmission lines, before the service traffic communication path set in the service transmission lines is switched to the protection transmission lines, if there is a communication path for sub traffic set in the protection transmission lines, the AU-AIS signal is inserted at the exit to lower-tier terminals to terminate the sub traffic communication path. Unless there is a communication path set for sub traffic in the protection transmission lines, the UNEQ signal is inserted at the exit to lower-tier terminals which are substantially connected to the protection transmission lines to terminate the sub traffic communication path. Later, the service traffic communication path is switched to the protection transmission lines. Then a misconnect during redundancy lines switching is prevented and the possibility of leak of the service traffic transmission information is eliminated.
摘要:
An optical fiber transmission line for realizing satisfactory long haul transmission characteristics using two kinds of optical fibers. The optical fiber transmission line includes a plurality of local dispersion compensating spans, wide dispersion compensating spans disposed at predetermined intervals, and optical repeating amplifiers to connect each span. The local dispersion compensating span includes a first optical fiber with positive dispersion having an effective core area of 130 &mgr;m2 or more and a second optical fiber with a negative dispersion value of −50 ps/nm/km or less to transmit the light output from the first optical fiber. The wide dispersion compensating span consists of a third optical fiber having the same configuration and composition with the first optical fiber.
摘要:
An object of the present invention is to realize almost the same transmission characteristic in all wavelengths at a transmission rate of 10 Gb/s or more. An optical transmitter 10 outputs WDM signal light multiplexed with signal light of a plurality of wavelengths toward an optical transmission line 12. The optical transmission line 12 comprises an optical transmission fiber 14, an optical repeating amplifier 16 and a dispersion compensating fiber 18. The gain characteristic of the optical repeating amplifier 16 is set so that the gain becomes the maximum at the effective zero dispersion wavelength of the optical transmission line 12 and that lowers inversely proportional to the distance from the effective zero dispersion wavelength. The whole optical transmission line 12 is set so that the peak power deviation between the effective zero dispersion wavelength &lgr;0 and the wavelength &lgr;1 or &lgr;n on both end becomes approximately 4 dB.