JPS60123060U - optical reader - Google Patents
optical readerInfo
- Publication number
- JPS60123060U JPS60123060U JP870084U JP870084U JPS60123060U JP S60123060 U JPS60123060 U JP S60123060U JP 870084 U JP870084 U JP 870084U JP 870084 U JP870084 U JP 870084U JP S60123060 U JPS60123060 U JP S60123060U
- Authority
- JP
- Japan
- Prior art keywords
- waveform
- reading device
- output
- optical reading
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は光学読取装置の従来の波形整形回路を示す図、
第２図は光学読取装置の波形整形回路における１実施例
構成を示す図、第３図は第２図に示す回路による出力波
形の例を示す図である。
１・・・・・・読み取りヘッド、２・・・・・・増幅回
路、３・・・・・・ＡＴＣ回路、４・・・・・・比較回
路、５・・・・・・バーコード、６・・・・・・リミッ
タ回路、７・・・・・・読み取りヘッドの出力波形、８
と９・・・・・・リベツタ・レベル、１０・・・・・・
リミッタ回路の出力波形、１１・・・・・・しきい値。FIG. 1 is a diagram showing a conventional waveform shaping circuit for an optical reading device.
FIG. 2 is a diagram showing one embodiment of the configuration of a waveform shaping circuit of an optical reading device, and FIG. 3 is a diagram showing an example of an output waveform from the circuit shown in FIG. 2. 1... Reading head, 2... Amplifying circuit, 3... ATC circuit, 4... Comparing circuit, 5... Bar code, 6...Limiter circuit, 7...Output waveform of reading head, 8
And 9... Rivetsuta level, 10...
Output waveform of limiter circuit, 11...Threshold value.
Claims (1)
ディジタル波形に変換する波形整形回路を備え、媒体上
に印刷されたバー−コード情報を光学的に読み取る光学
読取装置において、上記読み取りヘッドからの出力を一
定のリミッタ・レベルにより波形整形するリミッタ回路
を上記波形整形回路に具備し、上記波形整形回路は、上
記読み取りヘッドからの出力を、上記リミッタ回路によ
り一定の振幅の出力波形に波形整形した後、３Ｆ記所定
のしきい値と比較してディジタル波形に変換するように
構成されたことを特徴とする光学読取装置。In an optical reading device that optically reads bar code information printed on a medium, the optical reading device includes a waveform shaping circuit that compares the output from the reading head with a predetermined threshold value and converts it into a digital waveform. The waveform shaping circuit is provided with a limiter circuit that shapes the output of the read head into an output waveform of a constant amplitude using the limiter circuit. 3F. After that, the optical reading device is configured to compare the data with a predetermined threshold value described in 3F and convert it into a digital waveform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP870084U JPS60123060U (en) | 1984-01-25 | 1984-01-25 | optical reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP870084U JPS60123060U (en) | 1984-01-25 | 1984-01-25 | optical reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60123060U true JPS60123060U (en) | 1985-08-19 |
Family
ID=30488227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP870084U Pending JPS60123060U (en) | 1984-01-25 | 1984-01-25 | optical reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60123060U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5473521A (en) * | 1977-11-24 | 1979-06-12 | Tokyo Electric Co Ltd | Information reading device |
| JPS5595182A (en) * | 1979-01-10 | 1980-07-19 | Toshiba Corp | Two-way waveform clamper |
-
1984
- 1984-01-25 JP JP870084U patent/JPS60123060U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5473521A (en) * | 1977-11-24 | 1979-06-12 | Tokyo Electric Co Ltd | Information reading device |
| JPS5595182A (en) * | 1979-01-10 | 1980-07-19 | Toshiba Corp | Two-way waveform clamper |
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