CHARACTER RECOGNITION APPARATUS
A waveform recognition system which is especially applicable to character recognition systems wherein a unique analog waveform representative of each character is generated by a transducer. The waveform is normalized by a keyed AGC loop in the front end which controls the amplification of an amplifi...
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| creator | READING W,US WELCH R,US CARSON A,US KENNEY J,US |
| description | A waveform recognition system which is especially applicable to character recognition systems wherein a unique analog waveform representative of each character is generated by a transducer. The waveform is normalized by a keyed AGC loop in the front end which controls the amplification of an amplifier in accordance with the magnitude of the first peak of the waveform. The magnitude of each peak of the waveform is converted to a coded digital signal and the coded digital signals representative of adjacent sequential peaks are compared in a digital comparator to determine whether each peak is greater than, equal to, or smaller than, the adjacent peak. The results of the comparisons define features which are processed by a logic recognition network to identify the character. |
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The waveform is normalized by a keyed AGC loop in the front end which controls the amplification of an amplifier in accordance with the magnitude of the first peak of the waveform. The magnitude of each peak of the waveform is converted to a coded digital signal and the coded digital signals representative of adjacent sequential peaks are compared in a digital comparator to determine whether each peak is greater than, equal to, or smaller than, the adjacent peak. The results of the comparisons define features which are processed by a logic recognition network to identify the character.</description><language>eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; HANDLING RECORD CARRIERS ; PHYSICS ; PRESENTATION OF DATA ; RECOGNITION OF DATA ; RECORD CARRIERS</subject><creationdate>1974</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=19741126&DB=EPODOC&CC=US&NR=3851309A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19741126&DB=EPODOC&CC=US&NR=3851309A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>READING W,US</creatorcontrib><creatorcontrib>WELCH R,US</creatorcontrib><creatorcontrib>CARSON A,US</creatorcontrib><creatorcontrib>KENNEY J,US</creatorcontrib><title>CHARACTER RECOGNITION APPARATUS</title><description>A waveform recognition system which is especially applicable to character recognition systems wherein a unique analog waveform representative of each character is generated by a transducer. The waveform is normalized by a keyed AGC loop in the front end which controls the amplification of an amplifier in accordance with the magnitude of the first peak of the waveform. The magnitude of each peak of the waveform is converted to a coded digital signal and the coded digital signals representative of adjacent sequential peaks are compared in a digital comparator to determine whether each peak is greater than, equal to, or smaller than, the adjacent peak. 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| subjects | CALCULATING COMPUTING COUNTING HANDLING RECORD CARRIERS PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS |
| title | CHARACTER RECOGNITION APPARATUS |
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