发明名称 DUAL GAP READ HEAD FOR MAGNETIC INK CHARACTER RECOGNITION
摘要 A magnetic read head assembly and method for recognizing magnetic ink characters involves the scaling of peak information based on a second waveform. The read head assembly includes a first read head for generating a first waveform in response to a magnetic field of a magnetic ink character printed on a document. A second read head generates a second waveform in response to the magnetic field of the magnetic ink character. The read heads have a known head spacing, where the known head spacing defines an actual distance between the first read head and the second read head. In operation, peak information is determined for the character based on the first waveform. The peak information is scaled based on the first waveform and the second waveform. The scaled peak information is then compared to peak profiles, where the profiles correspond to known magnetic ink characters. Scaling the peak information based on the second waveform eliminates the need for precise knowledge or control of the document velocity.
申请公布号 WO0235456(A2) 申请公布日期 2002.05.02
申请号 WO2001US32214 申请日期 2001.10.17
申请人 UNISYS CORPORATION 发明人 HAYOSH, THOMAS, D.
分类号 G06K9/00 主分类号 G06K9/00
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