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JPS62165579U |
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JPS6245497B2 |
A method and an apparatus for transmitting and receiving electromagnetically generated ultra-sound, particularly for non-destructive testing of electrically conductive material, comprising the steps of generating one or more magnetic fie...
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JPS6245498B2 |
A method and an apparatus for transmitting and receiving electromagnetic ultra-sound, especially in non-destructive testing of electrically conductive material, comprising the steps of generating one or more magnetic fields by means of o...
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JPS62213437A |
PURPOSE: To apply beam the direction control of a narrow beam sender with high accuracy by providing a measuring signal wave channel estimating the azimuth of a reception side antenna views from a transmission side antenna in parallel wi...
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JPS6236396Y2 |
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JPS62133446U |
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JPS62185420A |
PURPOSE: To expand the movable range by providing a prescribed transmission/ reception device, converting a data to be sent into an ultrasonic wave signal or an electric signal and sending the result through a space between prescribed tr...
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JPS62127098U |
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JPS6236436B2 |
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JPS6232643B2 |
An electric signal transmission transducer employing a ferromagnetic amorphous ribbon and especially an electric signal transmission element and system and an electroacoustic signal conversion system using a ferromagnetic amorphous ribbo...
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JPS62155633A |
PURPOSE: To attain information transmission to an individual at a narrow region by using an audible frequency signal to modulate a carrier of an ultrasonic band, applying electroacoustic conversion to the result and outputting an ultraso...
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JPS62155634A |
PURPOSE: To attain the transmission to a desired limited region by using an ultrasonic wave as an information carrier medium, modulating the wave by an optional voice signal, applying electroacoustic conversion and outputting the ultraso...
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JPS62103341U |
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JPS62100731U |
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JPS62142427A |
PURPOSE: To make exactly connect between both sides of a barrier, etc., with relatively simple means by converting voice to ultrasonic wave and transmitting in the transmitting side, and converting the ultrasonic wave again to voice in t...
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JPS6217733Y2 |
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JPS6216695Y2 |
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JPS6281831A |
PURPOSE: To attain stable signal transmission by using a submarine cable from a land station up to a sea bottom at a prescribed point and using an ultrasonic wave between the submarine cable and an observation buoy. CONSTITUTION: A signa...
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JPS6213194Y2 |
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JPS6262633A |
PURPOSE: To extend the talking distance by providing a transmission/reception wave beam direction control means controlling the directivity of a transmission/ reception beam so as to be matched with the direction of a transmission/ recep...
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JPS6257325A |
PURPOSE: To attain the transmission of a signal even without an output terminal to send a signal to a signal transmission side device such as a computer by converting a sound into an electric signal after signal to be sent is converted o...
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JPS6251843A |
PURPOSE: To enable distinct speaking between divers even in the water area where there are ruggedness and rocks on the sea bottom, by providing a retransmitter which transmits a reception ultrasonic wave again to the lower face of a buoy...
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JPS6249500A |
(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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JPS6230893U |
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JPS6227693U |
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JPS6235725A |
PURPOSE: To make a communication between underwater sailing bodies or between an underwater sailing body and the ground by providing a transmitter receiver which is placed on or inserted into the bottom of the sea or water or the surface...
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JPS6224898U |
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JPS624980B2 |
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JPS626892U |
Disclosed is a starting device for a toy motor using an ultrasonic wave signal. The starting device comprises a transmitter external to the toy which generates an ultrasonic wave signal and a receiving and starting element disposed withi...
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JPS61289736A |
PURPOSE: To generate voice from the speaker of a remote control oscillator by operating the switch of a control device so as to generate an ultrasonic signal. CONSTITUTION: In operating a switch 6 provided to a TV receiver 5, an ultrason...
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JPS6157747B2 |
PURPOSE:To perform data repeating efficiently by averaging the operation load of a main equipment by setting beforehand the specific time when the main equipment comes to low operation and by performing communication with the main equipm...
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JPS61269428A |
PURPOSE: To obtain a wrist watch type equipment having a communication range equal to a conventional equipment by dividing the equipment into a wrist watch section and a pocket section and transmitting and receiving a signal between the ...
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JPS61253047A |
(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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JPS61174276U |
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JPS6146192B2 |
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JPS61162152U |
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JPS61213997A |
(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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JPS61198400A |
(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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JPS61103982U |
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JPS61100118U |
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JPS6117669Y2 |
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JPS6116550Y2 |
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JPS6150039U |
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JPS6133129U |
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JPS6129556U |
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JPS60182828A |
PURPOSE: To obtain a comparatively inexpensive and sure data communication system resistant to electric noise by using an ultrasonic wave of the 1st wavelength as a carrier and turning on/off the ultrasonic wave of the 2nd wavelength to ...
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JPS60173942A |
PURPOSE: To increase the maximum modulation frequency by setting the width of a modulation frequency to ±(0.05∼0.05)fc in an ultrasonic wave transceiver. CONSTITUTION: A center frequency is limited to 40kHz in the ultrasonic wave tran...
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JPS60165565A |
PURPOSE: To improve the transmission efficiency in transmission and S/N in reception by using an ultrasonic probe which has an electrode split into plural, and obtaining the desired impedance of the ultrasonic probe during the transmissi...
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JPS60121350U |
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JPS6034298B2 |
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