System and method for locking disparate video formats
A system and method for the phase alignment of signals of arbitrary relative frequency are described. A phase difference detector detects a phase difference between a first signal pulse and a corresponding second signal pulse. A phase comparator compares this detected phase difference to a calculate...
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| creator | DIGNAM DAVID L NAEGLE NATHANIEL D BOWEN ANDREW |
| description | A system and method for the phase alignment of signals of arbitrary relative frequency are described. A phase difference detector detects a phase difference between a first signal pulse and a corresponding second signal pulse. A phase comparator compares this detected phase difference to a calculated expected phase difference, to produce an error signal proportional to the difference. The clock generator adjusts the frequency of one of the signals by an amount based on the error signal, in order to phase align the first signal to the second signal. In a preferred embodiment, the first and second signals are video signals with a common frame rate and different line rates. |
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A phase difference detector detects a phase difference between a first signal pulse and a corresponding second signal pulse. A phase comparator compares this detected phase difference to a calculated expected phase difference, to produce an error signal proportional to the difference. The clock generator adjusts the frequency of one of the signals by an amount based on the error signal, in order to phase align the first signal to the second signal. In a preferred embodiment, the first and second signals are video signals with a common frame rate and different line rates.</description><edition>7</edition><language>eng</language><subject>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES ; BASIC ELECTRONIC CIRCUITRY ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><creationdate>2002</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=20020507&DB=EPODOC&CC=US&NR=6385267B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25555,76308</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20020507&DB=EPODOC&CC=US&NR=6385267B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DIGNAM DAVID L</creatorcontrib><creatorcontrib>NAEGLE NATHANIEL D</creatorcontrib><creatorcontrib>BOWEN ANDREW</creatorcontrib><title>System and method for locking disparate video formats</title><description>A system and method for the phase alignment of signals of arbitrary relative frequency are described. A phase difference detector detects a phase difference between a first signal pulse and a corresponding second signal pulse. A phase comparator compares this detected phase difference to a calculated expected phase difference, to produce an error signal proportional to the difference. The clock generator adjusts the frequency of one of the signals by an amount based on the error signal, in order to phase align the first signal to the second signal. In a preferred embodiment, the first and second signals are video signals with a common frame rate and different line rates.</description><subject>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDANriwuSc1VSMxLUchNLcnIT1FIyy9SyMlPzs7MS1dIySwuSCxKLElVKMtMSc0HyeUmlhTzMLCmJeYUp_JCaW4GBTfXEGcP3dSC_PhUoJbk1LzUkvjQYDNjC1MjM3MnQ2MilAAAFsAtDQ</recordid><startdate>20020507</startdate><enddate>20020507</enddate><creator>DIGNAM DAVID L</creator><creator>NAEGLE NATHANIEL D</creator><creator>BOWEN ANDREW</creator><scope>EVB</scope></search><sort><creationdate>20020507</creationdate><title>System and method for locking disparate video formats</title><author>DIGNAM DAVID L ; NAEGLE NATHANIEL D ; BOWEN ANDREW</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US6385267B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><topic>AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES</topic><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><toplevel>online_resources</toplevel><creatorcontrib>DIGNAM DAVID L</creatorcontrib><creatorcontrib>NAEGLE NATHANIEL D</creatorcontrib><creatorcontrib>BOWEN ANDREW</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DIGNAM DAVID L</au><au>NAEGLE NATHANIEL D</au><au>BOWEN ANDREW</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>System and method for locking disparate video formats</title><date>2002-05-07</date><risdate>2002</risdate><abstract>A system and method for the phase alignment of signals of arbitrary relative frequency are described. A phase difference detector detects a phase difference between a first signal pulse and a corresponding second signal pulse. A phase comparator compares this detected phase difference to a calculated expected phase difference, to produce an error signal proportional to the difference. The clock generator adjusts the frequency of one of the signals by an amount based on the error signal, in order to phase align the first signal to the second signal. In a preferred embodiment, the first and second signals are video signals with a common frame rate and different line rates.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION |
| title | System and method for locking disparate video formats |
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