INPUTTED LEVEL MONITORING SYSTEM OF VARIABLE ATTENUATOR
PURPOSE:To inexpensively constitute a variable attenuator, by using signals of a single frequency which is out of band of the transmitting frequency as the input of the variable attenuator. CONSTITUTION:A pilot signal and the signal of an oscillator 13, both of which have the same frequency, are inp...
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| creator | TAKEKOSHI YOSHIO TAKEDA MASAO |
| description | PURPOSE:To inexpensively constitute a variable attenuator, by using signals of a single frequency which is out of band of the transmitting frequency as the input of the variable attenuator. CONSTITUTION:A pilot signal and the signal of an oscillator 13, both of which have the same frequency, are inputted into a variable attenuator 1 through a hybrid circuit 8. These signals are extracted by an HPF10 and supplied to a meter 7' and a recorder 6 through an amplifier 11 and a detector 12. A controlling circuit 2 fetches the output of the variable attenuator 1, adjusts the gain of the variable attenuator 1, and maintains the output level of the variable attenuator 1 at a fixed level. Since the HPF10 can be used in this constitution, the monitoring circuit can be realized inexpensively. |
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CONSTITUTION:A pilot signal and the signal of an oscillator 13, both of which have the same frequency, are inputted into a variable attenuator 1 through a hybrid circuit 8. These signals are extracted by an HPF10 and supplied to a meter 7' and a recorder 6 through an amplifier 11 and a detector 12. A controlling circuit 2 fetches the output of the variable attenuator 1, adjusts the gain of the variable attenuator 1, and maintains the output level of the variable attenuator 1 at a fixed level. Since the HPF10 can be used in this constitution, the monitoring circuit can be realized inexpensively.</description><language>eng</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; MULTIPLEX COMMUNICATION ; TRANSMISSION</subject><creationdate>1983</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19830222&DB=EPODOC&CC=JP&NR=S5830243A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19830222&DB=EPODOC&CC=JP&NR=S5830243A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKEKOSHI YOSHIO</creatorcontrib><creatorcontrib>TAKEDA MASAO</creatorcontrib><title>INPUTTED LEVEL MONITORING SYSTEM OF VARIABLE ATTENUATOR</title><description>PURPOSE:To inexpensively constitute a variable attenuator, by using signals of a single frequency which is out of band of the transmitting frequency as the input of the variable attenuator. CONSTITUTION:A pilot signal and the signal of an oscillator 13, both of which have the same frequency, are inputted into a variable attenuator 1 through a hybrid circuit 8. These signals are extracted by an HPF10 and supplied to a meter 7' and a recorder 6 through an amplifier 11 and a detector 12. A controlling circuit 2 fetches the output of the variable attenuator 1, adjusts the gain of the variable attenuator 1, and maintains the output level of the variable attenuator 1 at a fixed level. Since the HPF10 can be used in this constitution, the monitoring circuit can be realized inexpensively.</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>MULTIPLEX COMMUNICATION</subject><subject>TRANSMISSION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1983</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDD39AsIDQlxdVHwcQ1z9VHw9ffzDPEP8vRzVwiODA5x9VXwd1MIcwzydHTycVVwBKr0C3UEKuBhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfFeAcGmFsYGRibGjsZEKAEAI7IoeA</recordid><startdate>19830222</startdate><enddate>19830222</enddate><creator>TAKEKOSHI YOSHIO</creator><creator>TAKEDA MASAO</creator><scope>EVB</scope></search><sort><creationdate>19830222</creationdate><title>INPUTTED LEVEL MONITORING SYSTEM OF VARIABLE ATTENUATOR</title><author>TAKEKOSHI YOSHIO ; TAKEDA MASAO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS5830243A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1983</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>MULTIPLEX COMMUNICATION</topic><topic>TRANSMISSION</topic><toplevel>online_resources</toplevel><creatorcontrib>TAKEKOSHI YOSHIO</creatorcontrib><creatorcontrib>TAKEDA MASAO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKEKOSHI YOSHIO</au><au>TAKEDA MASAO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>INPUTTED LEVEL MONITORING SYSTEM OF VARIABLE ATTENUATOR</title><date>1983-02-22</date><risdate>1983</risdate><abstract>PURPOSE:To inexpensively constitute a variable attenuator, by using signals of a single frequency which is out of band of the transmitting frequency as the input of the variable attenuator. CONSTITUTION:A pilot signal and the signal of an oscillator 13, both of which have the same frequency, are inputted into a variable attenuator 1 through a hybrid circuit 8. These signals are extracted by an HPF10 and supplied to a meter 7' and a recorder 6 through an amplifier 11 and a detector 12. A controlling circuit 2 fetches the output of the variable attenuator 1, adjusts the gain of the variable attenuator 1, and maintains the output level of the variable attenuator 1 at a fixed level. Since the HPF10 can be used in this constitution, the monitoring circuit can be realized inexpensively.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION TRANSMISSION |
| title | INPUTTED LEVEL MONITORING SYSTEM OF VARIABLE ATTENUATOR |
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