发明名称 |
System and Method for Noise Reduction in a Bar Code Signal |
摘要 |
A system and method for reading a bar code are disclosed which may include transmitting light pulsed at a selected frequency to illuminate the bar code; converting light received at the bar code reader from the bar code into an electrical signal; transmitting the electrical signal through a signal conditioning circuit to filter and amplify the electrical signal, to thereby provide a conditioned electrical signal; sampling the conditioned electrical signal at the selected frequency; removing energy due to light scattering within a housing of the bar code reader from the sampled, conditioned electrical signal; generating one of a logical "1" and a logical "0" output based on a value of the signal generated by the step of removing; and resolving output from the step of generating into data indicative of information on the bar code.
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申请公布号 |
US2013193213(A1) |
申请公布日期 |
2013.08.01 |
申请号 |
US201213363894 |
申请日期 |
2012.02.01 |
申请人 |
HIRONO MITSUAKI;NIIZEKI NAOYA;JI DEPEI;OPTICON, INC.;OPTOELECTRONICS CO., LTD. |
发明人 |
HIRONO MITSUAKI;NIIZEKI NAOYA;JI DEPEI |
分类号 |
G06K7/10 |
主分类号 |
G06K7/10 |
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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