JPH0120792B2 - - Google Patents
Info
- Publication number
- JPH0120792B2 JPH0120792B2 JP59013916A JP1391684A JPH0120792B2 JP H0120792 B2 JPH0120792 B2 JP H0120792B2 JP 59013916 A JP59013916 A JP 59013916A JP 1391684 A JP1391684 A JP 1391684A JP H0120792 B2 JPH0120792 B2 JP H0120792B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- slice
- peak
- slicing
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 15
- 230000003111 delayed effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 15
- 238000007493 shaping process Methods 0.000 description 9
- 238000007667 floating Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1391684A JPS60157676A (ja) | 1984-01-27 | 1984-01-27 | マ−ク検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1391684A JPS60157676A (ja) | 1984-01-27 | 1984-01-27 | マ−ク検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60157676A JPS60157676A (ja) | 1985-08-17 |
| JPH0120792B2 true JPH0120792B2 (fr) | 1989-04-18 |
Family
ID=11846490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1391684A Granted JPS60157676A (ja) | 1984-01-27 | 1984-01-27 | マ−ク検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60157676A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4740675A (en) * | 1986-04-10 | 1988-04-26 | Hewlett-Packard Company | Digital bar code slot reader with threshold comparison of the differentiated bar code signal |
| JPH0749556Y2 (ja) * | 1989-06-14 | 1995-11-13 | グローリー工業株式会社 | 保険証書受付装置 |
| JP5284115B2 (ja) * | 2009-01-13 | 2013-09-11 | 東京パーツ工業株式会社 | バーコード読取装置 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4937219U (fr) * | 1972-06-29 | 1974-04-02 | ||
| JPS51135430A (en) * | 1975-05-20 | 1976-11-24 | Matsushita Electric Ind Co Ltd | Signal processing unit |
| JPS5565101A (en) * | 1978-11-09 | 1980-05-16 | Fujitsu Ltd | Measuring system for width |
| JPS55143682A (en) * | 1979-04-24 | 1980-11-10 | Fujitsu Ltd | Read system for bar code information |
-
1984
- 1984-01-27 JP JP1391684A patent/JPS60157676A/ja active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4937219U (fr) * | 1972-06-29 | 1974-04-02 | ||
| JPS51135430A (en) * | 1975-05-20 | 1976-11-24 | Matsushita Electric Ind Co Ltd | Signal processing unit |
| JPS5565101A (en) * | 1978-11-09 | 1980-05-16 | Fujitsu Ltd | Measuring system for width |
| JPS55143682A (en) * | 1979-04-24 | 1980-11-10 | Fujitsu Ltd | Read system for bar code information |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60157676A (ja) | 1985-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0240767B1 (fr) | Lecteur à fente pour codes à bâtonnets | |
| US4749879A (en) | Signal transition detection method and system | |
| US5811782A (en) | Binary device for bar code reader | |
| EP0051343A2 (fr) | Traitement de signaux pour lecteurs de disques optiques digitaux | |
| US4764916A (en) | Reading circuit for an optical disk apparatus | |
| JPH0120792B2 (fr) | ||
| EP0312214B1 (fr) | Appareil de reproduction d'un signal numérique | |
| JPH0634296B2 (ja) | ドロツプアウト検出装置 | |
| JP2960200B2 (ja) | ピーク検出回路 | |
| JP2000516378A (ja) | 自動利得制御回路 | |
| US3993894A (en) | Dual edge detector for bar codes | |
| US5600118A (en) | Binarizing circuit and bar-code reader using such | |
| US5181196A (en) | Erase mark detecting circuit for detecting an erase mark superimposed on data recorded on a sector of an optical recording medium | |
| JPS60157677A (ja) | バ−コ−ドリ−ダ増幅回路方式 | |
| JPS6236291B2 (fr) | ||
| JPS60157678A (ja) | バ−コ−ドリ−ダ増幅回路 | |
| JPH0325238Y2 (fr) | ||
| JPS6131522B2 (fr) | ||
| JPH0363785B2 (fr) | ||
| JPH05225707A (ja) | 信号処理装置 | |
| JPH01173475A (ja) | 読み出し信号増幅回路 | |
| JPH02187926A (ja) | 光記録媒体駆動装置 | |
| JPS627266A (ja) | 画像処理装置 | |
| JPH0397118A (ja) | 光ディスク装置 | |
| JPS62298005A (ja) | 磁気デ−タ読取装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |