AUDIO FREQUENCY BAND REPRODUCING SYSTEM AND ITS DEVICE
PURPOSE:To execut reproduction and amplification of a narrow band, by amplitude-modulating a carrier wave of an ultrasonic band by a signal of audio frequency, and inputting this signal to an acoustic transducer having non-linearity. CONSTITUTION:An audio frequency band electric signal is inputted t...
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| creator | HINO MASANORI EGUCHI TAROU |
| description | PURPOSE:To execut reproduction and amplification of a narrow band, by amplitude-modulating a carrier wave of an ultrasonic band by a signal of audio frequency, and inputting this signal to an acoustic transducer having non-linearity. CONSTITUTION:An audio frequency band electric signal is inputted to a terminal 1. A carrier wave electric signal generator 3 has oscillation frequency of an ultrasonic frequency band. An amplitude modulator 2 amplitude-modulates a carrier wave of the ultrasonic frequency band by an audio frequency band electric signal, and applies it to an acoustic transducer 5 whose input/output characteristics have non-linearity, through an amplifier 4. From the transducer 5, only a fundamental wave component of an input audio frequency electric signal and the second higher harmonic component can be listened. In this way, the band width of the transducer 5 can be made small, therefore the transducer 5 is designed easily. |
| format | Patent |
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CONSTITUTION:An audio frequency band electric signal is inputted to a terminal 1. A carrier wave electric signal generator 3 has oscillation frequency of an ultrasonic frequency band. An amplitude modulator 2 amplitude-modulates a carrier wave of the ultrasonic frequency band by an audio frequency band electric signal, and applies it to an acoustic transducer 5 whose input/output characteristics have non-linearity, through an amplifier 4. From the transducer 5, only a fundamental wave component of an input audio frequency electric signal and the second higher harmonic component can be listened. In this way, the band width of the transducer 5 can be made small, therefore the transducer 5 is designed easily.</description><language>eng</language><subject>BASIC ELECTRONIC CIRCUITRY ; DEAF-AID SETS ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS ; MODULATION ; PHYSICS ; PUBLIC ADDRESS SYSTEMS</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=19830824&DB=EPODOC&CC=JP&NR=S58142608A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19830824&DB=EPODOC&CC=JP&NR=S58142608A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HINO MASANORI</creatorcontrib><creatorcontrib>EGUCHI TAROU</creatorcontrib><title>AUDIO FREQUENCY BAND REPRODUCING SYSTEM AND ITS DEVICE</title><description>PURPOSE:To execut reproduction and amplification of a narrow band, by amplitude-modulating a carrier wave of an ultrasonic band by a signal of audio frequency, and inputting this signal to an acoustic transducer having non-linearity. CONSTITUTION:An audio frequency band electric signal is inputted to a terminal 1. A carrier wave electric signal generator 3 has oscillation frequency of an ultrasonic frequency band. An amplitude modulator 2 amplitude-modulates a carrier wave of the ultrasonic frequency band by an audio frequency band electric signal, and applies it to an acoustic transducer 5 whose input/output characteristics have non-linearity, through an amplifier 4. From the transducer 5, only a fundamental wave component of an input audio frequency electric signal and the second higher harmonic component can be listened. In this way, the band width of the transducer 5 can be made small, therefore the transducer 5 is designed easily.</description><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>DEAF-AID SETS</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</subject><subject>MODULATION</subject><subject>PHYSICS</subject><subject>PUBLIC ADDRESS SYSTEMS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1983</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDBzDHXx9FdwC3INDHX1c45UcHL0c1EIcg0I8ncJdfb0c1cIjgwOcfVVAAl7hgQruLiGeTq78jCwpiXmFKfyQmluBkU31xBnD93Ugvz41OKCxOTUvNSSeK-AYFMLQxMjMwMLR2Ni1AAAFjEoLA</recordid><startdate>19830824</startdate><enddate>19830824</enddate><creator>HINO MASANORI</creator><creator>EGUCHI TAROU</creator><scope>EVB</scope></search><sort><creationdate>19830824</creationdate><title>AUDIO FREQUENCY BAND REPRODUCING SYSTEM AND ITS DEVICE</title><author>HINO MASANORI ; EGUCHI TAROU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS58142608A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1983</creationdate><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>DEAF-AID SETS</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</topic><topic>MODULATION</topic><topic>PHYSICS</topic><topic>PUBLIC ADDRESS SYSTEMS</topic><toplevel>online_resources</toplevel><creatorcontrib>HINO MASANORI</creatorcontrib><creatorcontrib>EGUCHI TAROU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HINO MASANORI</au><au>EGUCHI TAROU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>AUDIO FREQUENCY BAND REPRODUCING SYSTEM AND ITS DEVICE</title><date>1983-08-24</date><risdate>1983</risdate><abstract>PURPOSE:To execut reproduction and amplification of a narrow band, by amplitude-modulating a carrier wave of an ultrasonic band by a signal of audio frequency, and inputting this signal to an acoustic transducer having non-linearity. CONSTITUTION:An audio frequency band electric signal is inputted to a terminal 1. A carrier wave electric signal generator 3 has oscillation frequency of an ultrasonic frequency band. An amplitude modulator 2 amplitude-modulates a carrier wave of the ultrasonic frequency band by an audio frequency band electric signal, and applies it to an acoustic transducer 5 whose input/output characteristics have non-linearity, through an amplifier 4. From the transducer 5, only a fundamental wave component of an input audio frequency electric signal and the second higher harmonic component can be listened. In this way, the band width of the transducer 5 can be made small, therefore the transducer 5 is designed easily.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | BASIC ELECTRONIC CIRCUITRY DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MODULATION PHYSICS PUBLIC ADDRESS SYSTEMS |
| title | AUDIO FREQUENCY BAND REPRODUCING SYSTEM AND ITS DEVICE |
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