发明名称 |
Two-dimensional bar code scanner interface |
摘要 |
An interface between a two-dimensional bar code scanner and a host digital decoder is provided through a 15-pin electronic connector, which transfers to the decoder an actuating signal either from a scanner trigger switch or from an external device. In response, the digital decoder provides the scanner with operating power. The scanner generates and relays a bar code signal and a scanning direction signal back to the digital decoder, which uses these signals to identify a bar code being scanned as a one-dimensional or two-dimensional code. If the bar code is determined to be a two-dimensional code, upon detection of laser pattern alignment with the label the digital decoder sends a scanning control signal to the scanner to control a laser pattern generated by the scanner.
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申请公布号 |
US5789728(A) |
申请公布日期 |
1998.08.04 |
申请号 |
US19950381045 |
申请日期 |
1995.01.31 |
申请人 |
SYMBOL TECHNOLOGIES, INC. |
发明人 |
BARILE, JOHN;CHARYCH, HAL;CHEW, STEVEN;GEIBEL, JAMES |
分类号 |
G06K7/00;G06K7/10;G06K17/00;(IPC1-7):G06K7/10 |
主分类号 |
G06K7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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