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JPS58204647A |
PURPOSE: To attain automatically the display of presence of an opposite car and the mutual talking, by irradiating a call signal for communication among cars and a presence confirming signal of other cars at an intersection as different ...
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JPS58196735A |
PURPOSE: To constitute an inexpensive intervehicle signal transmitting device, by converting an input signal into an encoded pulse signal and transmitting and receiving it in the form of light or an ultrasonic wave. CONSTITUTION: A trans...
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JPS58195331A |
PURPOSE: To attain the detection and communication of a visitor with the same medium, by installing one sound wave transceiver and using modulated and demodulated ultrasonic waves by using the said device in common with reflected waves o...
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JPS58191547A |
PURPOSE: To prevent the crosstalk of a mobile car due to simultaneous transmission and the disable transmission due to an inclination of the car toward the progressing direction, by designating the directivity of an ultrasonic wave trans...
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JPS58191546A |
PURPOSE: To prevent the crosstalk of a mobile car due to simultaneous and malfunction with signals other than those at a fixed terminal, by attaining nondirectivity of an ultrasonic wave transceiver of the mobile car by means of the unid...
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JPS58187805A |
PURPOSE: To obtain a wireless tide level telemter, wherein the signal of a tide level gage, which is provided in an automatic tide level gate station at a specified position, is transduced into a sound wave, the transmitted sound wave is...
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JPS58184839A |
PURPOSE: To improve the operability, by providing an ultrasonic wave transceiver before and after cars, selecting the transceiver with a switching relay switch controlled with an output of a connecting decision device connected to a call...
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JPS5846713B2 |
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JPS58173494A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5843357Y2 |
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JPS5843694B2 |
Error compensating method and means are shown for use in multichannel systems for compensation of errors in the operating characteristics of the individual information handling channels. Offset, gain, linearity and the like, channel tran...
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JPS5840686Y2 |
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JPS58153433A |
PURPOSE: To transmit information in a wide range, by using a signal adopting an ultrasonic wave as a carrier, and utilizing a liquid transmporting pipe laid for the original using purpose. CONSTITUTION: A water supply main pile 1, water ...
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JPS5840398B2 |
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JPS5838836B2 |
To detect breakage of glass panes, panels of display cases, or movement in a room, ultrasonic waves, preferably in the order of from 120 kHz to 180 kHz, are transmitted to the sonically conductive medium (glass panes, plastic sheets, or ...
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JPS58132834A |
PURPOSE: To give a sufficient freedom to installation of the input device side to improve the operability, by connecting acoustically the main body side, where a processing device is stored, and the input device side, where an input devi...
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JPS58120333A |
PURPOSE: To improve the reception precision of an acoustic signal, by controlling a receiver receiving a pulse wave by utilizing Doppler shift and thus receiving a Doppler-shifted pulse wave, at a system which receives the acoustic signa...
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JPS5832527B2 |
Acoustic waveguides, acoustic filters and acoustic reflectors are based upon the discovery of increased acoustic wave velocity in materials such as lithium niobate and lithium tantalate into which a metal such as titanium, nickel or chro...
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JPS5832559B2 |
The disclosure relates to a system for aerially transmitting an ultrasonic view of a vibration mode, small in angle of direction, in a clear state and to a transmitter and a receiver used in the system. According to the system, an ultras...
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JPS58116822A |
PURPOSE: To constitute a selective call signal receiver and an electronic wrist watch in one body by providing a broadcasting device in a private broadcasting facility network with such constitution that a selective call signal by an aco...
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JPS5830385Y2 |
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JPS5830382Y2 |
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JPS5830236Y2 |
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JPS5830556B2 |
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JPS5895438A |
PURPOSE: To make the communication between cars possible without electromagnetic troubles, by using ultrasonic waves. CONSTITUTION: Antennas 131 and 132 having ultrasonic oscillators are attached to the fore bumper and the hind bumper of...
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JPS5877982U |
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JPS5883948A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5883943A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5822710B2 |
The invention relates to a transmit/receive switching unit for use between a transmit/receive converter and the transmission line of a transmit/receive device having a voltage source. The unit has transmitting and receiving channels with...
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JPS5821880B2 |
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JPS5869536A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5869535A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5869534A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5865428A |
PURPOSE: To decrese the audible sounds produced in the transmission stage of ultrasonic waves by applying the voltage which increases and decreases slowly in initial and end periods to an ultrasonic wave transmitter. CONSTITUTION: When t...
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JPS5818362Y2 |
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JPS5839400U |
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JPS5838042A |
PURPOSE: To improve the tracking performance to a call, by using an ultrasonic wave carrier frequency as a callout signal, checking whether or not the carrier frequency from an opposing car is within a prescribed frequency band, and disc...
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JPS5836036A |
PURPOSE: To discriminate whether a calling device which uses ultrasonic device is within its calling distance range or not, by utilizing an ultrasonic wave for distance measurement when calling is not carried on. CONSTITUTION: In a stand...
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JPS5836035A |
PURPOSE: To reduce the power consumption by turning off a switch provided to a power line to a transmitter and receiver when there is no call from a leading or following car. CONSTITUTION: Ultrasonic transmitter and receivers are provide...
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JPS5828676A |
PURPOSE: To ensure the transmission of a large output for a wave transmitter/ receiver for long-distance sonar, by inserting a reed relay contact between the coils of a matching transformer which is stored in a water tight holder of the ...
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JPS587095B2 |
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JPS587000B2 |
A submersible which can automatically move along the cable laid under water, has a sensor, and the information collected or gathered by said sensor is forwarded to the control unit on land through said cable. The submersible is for insta...
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JPS5819551U |
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JPS584315Y2 |
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JPS582742A |
PURPOSE: To obtain transmission current pulses having a short time width, by connecting the parallel connection of a rectifier and a resistor in series to the transmitting coil in a transmitting circuit to consume the energy, which is st...
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JPS57204478A |
PURPOSE: To finely vary a focused area, and to obtain a receiving pulse signal having high image resolution, by providing a lot of delay line groups, and switching these delay line groups at a high speed. CONSTITUTION: Each vibrator of a...
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JPS5757438Y2 |
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JPS57199954A |
PURPOSE: To improve resolution and sensitivity, and to easily form numbers of focusing areas by driving plural array elements by transmitted pulse signals having different characteristics, and imposing pulse compression upoon echo signal...
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JPS57190328U |
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JPS57193145A |
PURPOSE: To commonly use a center-to-automobile communication device to an existing ultrasonic car detector, by transmitting data through the AM modulation of a wave length of an ultrasonic car detector and making data with reception and...
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