COLOR SIGNAL DEMODULATING DEVICE
PURPOSE:To demodulate a color signal with high accuracy even against a disturbance by latching a continuous wave signal subjected to code conversion, and also, latching its burst part corresponding part, and executing a prescribed operation by using both outputs. CONSTITUTION:A first latch 31 latche...
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creator | KUMANO MAKOTO |
description | PURPOSE:To demodulate a color signal with high accuracy even against a disturbance by latching a continuous wave signal subjected to code conversion, and also, latching its burst part corresponding part, and executing a prescribed operation by using both outputs. CONSTITUTION:A first latch 31 latches an output of a code device at a different timing, based on a continuous wave signal of two-multiply, and as for its output, a burst part corresponding part is latched by a latch 32. In this case, a multiplier 42 executes multiplication of an output B of a unit 12 and an output of the latch 32, and outputs its result to an adder 51. Also, a multiplier 43 multiplies an output 14 of the unit 12 and an output of a complementer 35, and outputs its result to the adder 51. Subsequently, the adder 51 acids the outputs of the multipliers 42, 43 and obtains an output 61. As a result, an arithmetic unit 70 inputs a first latch output in a unit 12 and the latches 31, 32, executes a prescribed operation and outputs the output 61. In such a way, from burst data, a correct color difference demodulation result is obtained, and a demodulator having high accuracy even against a disturbance is obtained. |
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CONSTITUTION:A first latch 31 latches an output of a code device at a different timing, based on a continuous wave signal of two-multiply, and as for its output, a burst part corresponding part is latched by a latch 32. In this case, a multiplier 42 executes multiplication of an output B of a unit 12 and an output of the latch 32, and outputs its result to an adder 51. Also, a multiplier 43 multiplies an output 14 of the unit 12 and an output of a complementer 35, and outputs its result to the adder 51. Subsequently, the adder 51 acids the outputs of the multipliers 42, 43 and obtains an output 61. As a result, an arithmetic unit 70 inputs a first latch output in a unit 12 and the latches 31, 32, executes a prescribed operation and outputs the output 61. In such a way, from burst data, a correct color difference demodulation result is obtained, and a demodulator having high accuracy even against a disturbance is obtained.</description><language>eng</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><creationdate>1993</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=19930601&DB=EPODOC&CC=JP&NR=H05137151A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930601&DB=EPODOC&CC=JP&NR=H05137151A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KUMANO MAKOTO</creatorcontrib><title>COLOR SIGNAL DEMODULATING DEVICE</title><description>PURPOSE:To demodulate a color signal with high accuracy even against a disturbance by latching a continuous wave signal subjected to code conversion, and also, latching its burst part corresponding part, and executing a prescribed operation by using both outputs. CONSTITUTION:A first latch 31 latches an output of a code device at a different timing, based on a continuous wave signal of two-multiply, and as for its output, a burst part corresponding part is latched by a latch 32. In this case, a multiplier 42 executes multiplication of an output B of a unit 12 and an output of the latch 32, and outputs its result to an adder 51. Also, a multiplier 43 multiplies an output 14 of the unit 12 and an output of a complementer 35, and outputs its result to the adder 51. Subsequently, the adder 51 acids the outputs of the multipliers 42, 43 and obtains an output 61. As a result, an arithmetic unit 70 inputs a first latch output in a unit 12 and the latches 31, 32, executes a prescribed operation and outputs the output 61. In such a way, from burst data, a correct color difference demodulation result is obtained, and a demodulator having high accuracy even against a disturbance is obtained.</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1993</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFBw9vfxD1II9nT3c_RRcHH19XcJ9XEM8fRzB3LCPJ1deRhY0xJzilN5oTQ3g6Kba4izh25qQX58anFBYnJqXmpJvFeAh4GpobG5oamhozExagDz2iIB</recordid><startdate>19930601</startdate><enddate>19930601</enddate><creator>KUMANO MAKOTO</creator><scope>EVB</scope></search><sort><creationdate>19930601</creationdate><title>COLOR SIGNAL DEMODULATING DEVICE</title><author>KUMANO MAKOTO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH05137151A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1993</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><toplevel>online_resources</toplevel><creatorcontrib>KUMANO MAKOTO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KUMANO MAKOTO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>COLOR SIGNAL DEMODULATING DEVICE</title><date>1993-06-01</date><risdate>1993</risdate><abstract>PURPOSE:To demodulate a color signal with high accuracy even against a disturbance by latching a continuous wave signal subjected to code conversion, and also, latching its burst part corresponding part, and executing a prescribed operation by using both outputs. CONSTITUTION:A first latch 31 latches an output of a code device at a different timing, based on a continuous wave signal of two-multiply, and as for its output, a burst part corresponding part is latched by a latch 32. In this case, a multiplier 42 executes multiplication of an output B of a unit 12 and an output of the latch 32, and outputs its result to an adder 51. Also, a multiplier 43 multiplies an output 14 of the unit 12 and an output of a complementer 35, and outputs its result to the adder 51. Subsequently, the adder 51 acids the outputs of the multipliers 42, 43 and obtains an output 61. As a result, an arithmetic unit 70 inputs a first latch output in a unit 12 and the latches 31, 32, executes a prescribed operation and outputs the output 61. In such a way, from burst data, a correct color difference demodulation result is obtained, and a demodulator having high accuracy even against a disturbance is obtained.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION |
title | COLOR SIGNAL DEMODULATING DEVICE |
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