VIDEO SIGNAL RECORDING AND REPRODUCING DEVICE

PROBLEM TO BE SOLVED: To provide a drop out pulse whose pulse width is not fluctuated by the amplitude of a reproduced RF signal concerning a method for preparing a drop out pulse being a video signal lacking part at VTR with a special reproducing device. SOLUTION: This device is provided with an en...

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Hauptverfasser:	IGARASHI MASATOSHI, TOYOOKA TETSUJI, SHIMIZU HIDEO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator	IGARASHI MASATOSHI TOYOOKA TETSUJI SHIMIZU HIDEO
description	PROBLEM TO BE SOLVED: To provide a drop out pulse whose pulse width is not fluctuated by the amplitude of a reproduced RF signal concerning a method for preparing a drop out pulse being a video signal lacking part at VTR with a special reproducing device. SOLUTION: This device is provided with an envelope detecting circuit 1 detecting the envelopes of the reproduced RF signal, a first peak detecting circuit 2 detecting the highest potential of a wave height out of a reference potential concerning (b) being the output signal of this circuit 1, a second peak detecting circuit 3 detecting the lowest potential of the wave height out of the reference potential concerning (b) being the output signal of the circuit 1, an attenuator 4 attenuating the outputs of the circuits 2 and 3, and a comparator 5 to which the output of the circuit 1 is inputted as an inverted input and the output of the attenuator 4 as a non-inverting input. A drop out detecting pulse C having no fluctuation of the pulse width with respect to that of the input amplitude of the reproduced RF signal is outputted by this.
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SOLUTION: This device is provided with an envelope detecting circuit 1 detecting the envelopes of the reproduced RF signal, a first peak detecting circuit 2 detecting the highest potential of a wave height out of a reference potential concerning (b) being the output signal of this circuit 1, a second peak detecting circuit 3 detecting the lowest potential of the wave height out of the reference potential concerning (b) being the output signal of the circuit 1, an attenuator 4 attenuating the outputs of the circuits 2 and 3, and a comparator 5 to which the output of the circuit 1 is inputted as an inverted input and the output of the attenuator 4 as a non-inverting input. 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A drop out detecting pulse C having no fluctuation of the pulse width with respect to that of the input amplitude of the reproduced RF signal is outputted by this.</description><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAN83Rx9VcI9nT3c_RRCHJ19g9y8fRzV3D0cwHyAoL8XUKdQXwX1zBPZ1ceBta0xJziVF4ozc2g6OYa4uyhm1qQH59aXJCYnJqXWhLvFeBhaGhkYGpuau5oTIwaALK4JYU</recordid><startdate>19990730</startdate><enddate>19990730</enddate><creator>IGARASHI MASATOSHI</creator><creator>TOYOOKA TETSUJI</creator><creator>SHIMIZU HIDEO</creator><scope>EVB</scope></search><sort><creationdate>19990730</creationdate><title>VIDEO SIGNAL RECORDING AND REPRODUCING DEVICE</title><author>IGARASHI MASATOSHI ; TOYOOKA TETSUJI ; SHIMIZU HIDEO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH11205757A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1999</creationdate><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><toplevel>online_resources</toplevel><creatorcontrib>IGARASHI MASATOSHI</creatorcontrib><creatorcontrib>TOYOOKA TETSUJI</creatorcontrib><creatorcontrib>SHIMIZU HIDEO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>IGARASHI MASATOSHI</au><au>TOYOOKA TETSUJI</au><au>SHIMIZU HIDEO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VIDEO SIGNAL RECORDING AND REPRODUCING DEVICE</title><date>1999-07-30</date><risdate>1999</risdate><abstract>PROBLEM TO BE SOLVED: To provide a drop out pulse whose pulse width is not fluctuated by the amplitude of a reproduced RF signal concerning a method for preparing a drop out pulse being a video signal lacking part at VTR with a special reproducing device. SOLUTION: This device is provided with an envelope detecting circuit 1 detecting the envelopes of the reproduced RF signal, a first peak detecting circuit 2 detecting the highest potential of a wave height out of a reference potential concerning (b) being the output signal of this circuit 1, a second peak detecting circuit 3 detecting the lowest potential of the wave height out of the reference potential concerning (b) being the output signal of the circuit 1, an attenuator 4 attenuating the outputs of the circuits 2 and 3, and a comparator 5 to which the output of the circuit 1 is inputted as an inverted input and the output of the attenuator 4 as a non-inverting input. A drop out detecting pulse C having no fluctuation of the pulse width with respect to that of the input amplitude of the reproduced RF signal is outputted by this.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects	BASIC ELECTRONIC CIRCUITRY DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION
title	VIDEO SIGNAL RECORDING AND REPRODUCING DEVICE
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