JPH0420170U - - Google Patents
Info
- Publication number
- JPH0420170U JPH0420170U JP6018490U JP6018490U JPH0420170U JP H0420170 U JPH0420170 U JP H0420170U JP 6018490 U JP6018490 U JP 6018490U JP 6018490 U JP6018490 U JP 6018490U JP H0420170 U JPH0420170 U JP H0420170U
- Authority
- JP
- Japan
- Prior art keywords
- buzzer
- switch circuit
- controls
- detection signal
- barcode reader
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Description
第１図はこの考案による実施例を示すブザー制
御回路のブロツク図、第２図はそのフローチヤー
トである。
１，２……トランジスタ、３，４，６，７……
抵抗、５……ブザー、８……ＣＰＵ。
FIG. 1 is a block diagram of a buzzer control circuit showing an embodiment of this invention, and FIG. 2 is a flowchart thereof. 1, 2...transistor, 3, 4, 6, 7...
Resistance, 5...Buzzer, 8...CPU.
Claims (1)
、その検出信号によつて作動するブザーを備えた
バーコードリーダにおいて、 ２つのトランジスタと複数個の抵抗よりなるス
イツチ回路を上記ブザーの制御回路に設け、上記
検出信号に基づく２つの信号をスイツチ回路へ入
力させ、このスイツチ回路を構成するトランジス
タをＯＮ・ＯＦＦ作動させることによつてブザー
への駆動電圧を制御し、ブザーの音量と音質を制
御することを特徴とするバーコードリーダ。[Claim for Utility Model Registration] A barcode reader equipped with a buzzer that detects that a barcode has been optically read and is activated by the detection signal, a switch circuit comprising two transistors and a plurality of resistors. is provided in the control circuit of the buzzer, inputs two signals based on the detection signal to a switch circuit, and controls the drive voltage to the buzzer by turning ON/OFF the transistors forming the switch circuit, A barcode reader that controls the volume and sound quality of the buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6018490U JPH0420170U (en) | 1990-06-08 | 1990-06-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6018490U JPH0420170U (en) | 1990-06-08 | 1990-06-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0420170U true JPH0420170U (en) | 1992-02-20 |
Family
ID=31587329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6018490U Pending JPH0420170U (en) | 1990-06-08 | 1990-06-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0420170U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61190660A (en) * | 1985-02-18 | 1986-08-25 | Fujitsu Ltd | Read tone control system |
-
1990
- 1990-06-08 JP JP6018490U patent/JPH0420170U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61190660A (en) * | 1985-02-18 | 1986-08-25 | Fujitsu Ltd | Read tone control system |