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JPH03227150A |
PURPOSE: To use an existing transmission line and to simply execute ultrasonic wave communication by fitting a branch line along a transmission line on its way. CONSTITUTION: An end part of a branch line 20 is fitted along a wired transm...
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JPH0342753Y2 |
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JPH0355056B2 |
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JPH0354796B2 |
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JPH03183223A |
PURPOSE: To evade regulation by the radio law, and to remove the occurrence of a noise due to the mechanical vibration of a wire, etc., in a bone transmission type microphone by converting the vibration of an ear bone into on electric si...
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JPH0332335Y2 |
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JPH0328611Y2 |
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JPH0379199A |
PURPOSE: To operate a transmitter/receiver with high efficiency by adjusting an impedance by a control circuit, which is connected to an impedance element, corresponding to a frequency to be transmitted/received by the transmitter/ recei...
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JPH0378445A |
PURPOSE: To enable transmission of information over an overhead transmission line, not equipped with composite optical earth wire, by arranging an ultrasonic oscillator and an ultrasonic receiver on the overhead earth wire at the opposit...
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JPH0362800A |
PURPOSE: To attain remote control in voice by using a voice recognition means to receive a voice signal and recognizing whether or not it is an uttered voice signal of a predetermined word and executing a relevant operation when the sign...
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JPH0315152B2 |
PURPOSE:To remove a time measuring error due to the variation in a pulse signal wave by increasing the rising ratio of an envelope, by reducing the amplifying gain of the pulse signal wave from the point of time when the transmitted puls...
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JPH0341899A |
PURPOSE: To prevent a large sized controller and large power consumption by sending a control signal controlling remotely a camera incorporating VTR from a transmitter side in a sound signal. CONSTITUTION: A control code generator 5 gene...
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JPH0340534A |
PURPOSE: To improve ultrasonic transmitting/receiving sensitivity by using porous metal using a metal reducing the internal loss of an acoustic matching layer as a base material. CONSTITUTION: In the ultrasonic transmitter/receiver 10 fo...
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JPH0319006A |
PURPOSE:To easily and quickly set and change the depth by controlling the opening amount in accordance with the difference between the signal received from a pressure sensor and the signal received from a floating depth setter which can ...
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JPH035554B2 |
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JPH02284535A |
PURPOSE: To form a communication equipment by means of a simple circuit by constituting a ultrasonic wave communication equipment by means of a city water pipe interface which transmits and receives a ultrasonic wave that makes water in ...
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JPH02135883U |
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JPH0241680Y2 |
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JPH0245426B2 |
An insulated transmission medium for propagating ultrasonic vibrational waves and conducting electromagnetic energy in a multiplex type communication system, whereby said medium is a metallic strip that interconnects an ultrasonic wave t...
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JPH02252099A |
PURPOSE: To drive a monitoring device by a voice signal from a microphone or the like by storing voice data specified for a working command, comparing an inputted voice signal with the stored voice data and driving a camera after discrim...
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JPH0230788Y2 |
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JPH0230789Y2 |
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JPH02103287U |
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JPH0299494U |
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JPH0230640B2 |
PURPOSE:To correct a preamplifier, by using a balanced piezoelectric oscillator as a piezoelectric oscillator for correction and applying a balance signal, which is obtained by inputting an electric signal for correction of unbalance to ...
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JPH02162999A |
PURPOSE: To deliver a voice only to a prescribed person among lots of persons with the use of an inexpensive receiver without giving adverse effect onto other electric equipment and being interfered by a person or a thing. CONSTITUTION: ...
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JPH02501697A |
(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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JPH02141134A |
PURPOSE: To provide directivity for transmission reception of an ultrasonic wave in water and to increase S/N by applying delay control to input sound wave signals and summing the signals while the time difference is made zero, applying ...
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JPH0269778U |
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JPH02134935A |
PURPOSE: To shorten time required to search a possessed file or the like in dependence upon a tone by modulating an audio frequency signal with an ultrasonic wave and interruptedly outputting this ultrasonic signal to the external throug...
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JPH0251999A |
PURPOSE: To utilize an economical communication medium by making a digital signal as a control signal into a combination with several kinds of sounds and providing a separation discrimination signal to discriminate separations between re...
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JPH02710Y2 |
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JPH01151396U |
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JPH0134133Y2 |
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JPH0147960B2 |
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JPH01251194A |
PURPOSE: To execute call operation without using a large-sized transmitting- receiving system such as radio by generating a call signal including an inherent identification signal specifying a transmitting side from a receiving side with...
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JPH01141195U |
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JPH01141263U |
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JPH0142534B2 |
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JPH01126637U |
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JPH01209826A |
PURPOSE: To decrease the number of switches and to attain low cost and small size by dividing input signals into plural sets, assigning a matrix switch and a delay line to each set and providing 1st and 2nd selection sections. CONSTITUTI...
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JPH01202943A |
PURPOSE: To attain transmission of information without provision of a through- hole to an inner shell by transmitting command information acoustically via the inner shell. CONSTITUTION: A transmitter-receiver section 1 having a transmitt...
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JPH01200735A |
PURPOSE: To transmit a signal at an appropriate S/N by measuring the level of circumferential sound and increasing and decreasing transmitting output sound corresponding to the circumferential sound. CONSTITUTION: A modulator 1 generates...
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JPH0121437Y2 |
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JPH0194200U |
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JPH01150879A |
PURPOSE: To continuously execute the communication of production information in each process in a production line by the production line by constituting a production management information medium of a contact type information medium and ...
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JPH0129478B2 |
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JPH0170448U |
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JPH0115248Y2 |
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JPH0119550B2 |
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