PH26943A - Photoelectric array detection circuitary with dual bating means - Google Patents
Photoelectric array detection circuitary with dual bating means Download PDFInfo
- Publication number
- PH26943A PH26943A PH38962A PH38962A PH26943A PH 26943 A PH26943 A PH 26943A PH 38962 A PH38962 A PH 38962A PH 38962 A PH38962 A PH 38962A PH 26943 A PH26943 A PH 26943A
- Authority
- PH
- Philippines
- Prior art keywords
- light
- gating
- light emitting
- summing
- transmitter
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title claims description 24
- 230000009977 dual effect Effects 0.000 title 1
- 238000003491 array Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Electronic Switches (AREA)
- Geophysics And Detection Of Objects (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Air Bags (AREA)
- Electrophonic Musical Instruments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8817759A GB2221294B (en) | 1988-07-26 | 1988-07-26 | Detection circuitry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PH26943A true PH26943A (en) | 1992-12-03 |
Family
ID=10641112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PH38962A PH26943A (en) | 1988-07-26 | 1989-07-19 | Photoelectric array detection circuitary with dual bating means |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5053616A (de) |
| EP (1) | EP0426677B1 (de) |
| JP (1) | JPH04501603A (de) |
| AU (1) | AU622673B2 (de) |
| CA (1) | CA1313546C (de) |
| DE (1) | DE68913743T2 (de) |
| GB (1) | GB2221294B (de) |
| NZ (1) | NZ229921A (de) |
| PH (1) | PH26943A (de) |
| WO (1) | WO1990001173A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2266143A (en) * | 1992-04-16 | 1993-10-20 | Ind Tech Res Inst | Palm-triggered photo switch |
| US5371353A (en) * | 1992-07-31 | 1994-12-06 | Oki Electric Industry Co., Ltd. | Object detecting device having multiple optical sensors with a common output line and a common selection signal line |
| US6050369A (en) * | 1994-10-07 | 2000-04-18 | Toc Holding Company Of New York, Inc. | Elevator shaftway intrusion device using optical imaging processing |
| US5644111A (en) * | 1995-05-08 | 1997-07-01 | New York City Housing Authority | Elevator hatch door monitoring system |
| DE19718390A1 (de) * | 1997-04-30 | 1998-11-05 | Sick Ag | Opto-elektronischer Sensor |
| DE19718389A1 (de) * | 1997-04-30 | 1998-11-05 | Sick Ag | Opto-elektronische Sensoranordnung |
| EP0875771B1 (de) * | 1997-04-30 | 2004-07-14 | Sick Ag | Opto-elektronische Sensoranordnung mit mehreren in einer Zeile oder einem Array angeordneten photoempfindlichen Elementen |
| US6881972B2 (en) * | 2002-11-04 | 2005-04-19 | Hewlett-Packard Development Company, L.P. | Media stiffness detection device and method therefor |
| GB2420176B (en) * | 2004-11-15 | 2009-11-04 | Memco Ltd | Safety sensing system for a powered door system |
| US20070210267A1 (en) * | 2006-02-27 | 2007-09-13 | Sharp Kabushiki Kaisha | Optical ranging sensor and warm water wash toilet seat |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE385746B (sv) * | 1974-09-20 | 1976-07-19 | Telub Ab | Anordning for detektering av ett i en ljusrida inforbart objekt |
| DE2538275B2 (de) * | 1975-08-28 | 1979-12-13 | Unidor Gmbh, 7530 Pforzheim | Lichtschranke |
| AU509436B2 (en) * | 1976-05-05 | 1980-05-15 | 3M Australia Pty Limited | Optoelectronic detection apparatus |
| US4085862A (en) * | 1976-10-08 | 1978-04-25 | Dickey-John Corporation | Automatically controlled seed planter |
| US4260882A (en) * | 1978-05-17 | 1981-04-07 | Barnes Austen B | Light sensitive detection circuit |
| US4309696A (en) * | 1978-06-26 | 1982-01-05 | Kabushiki Kaisha Komatsu Seisakusho | Trouble detecting unit in an optical security device |
| US4430646A (en) * | 1980-12-31 | 1984-02-07 | American District Telegraph Company | Forward scatter smoke detector |
| JPS58500039A (ja) * | 1981-02-10 | 1983-01-06 | オ−チス エレベ−タ コムパニ− | 閉じる引戸の通路にある物体を検出する方法及び装置 |
| US4434363A (en) * | 1981-05-11 | 1984-02-28 | Matsushita Electric Works, Ltd. | Photoelectric switching apparatus |
| US4539556A (en) * | 1983-04-15 | 1985-09-03 | Pittway Corporation | Combustion products detector with accelerated test |
| GB8527277D0 (en) * | 1985-11-06 | 1985-12-11 | Formula Systems Ltd | Proximity detector |
| AU623540B2 (en) * | 1989-07-10 | 1992-05-14 | Saipem Australia Pty. Limited | Acoustic oscillator |
-
1988
- 1988-07-26 GB GB8817759A patent/GB2221294B/en not_active Expired - Lifetime
-
1989
- 1989-04-17 DE DE68913743T patent/DE68913743T2/de not_active Expired - Fee Related
- 1989-04-17 AU AU35425/89A patent/AU622673B2/en not_active Ceased
- 1989-04-17 US US07/460,900 patent/US5053616A/en not_active Expired - Fee Related
- 1989-04-17 WO PCT/GB1989/000400 patent/WO1990001173A1/en active IP Right Grant
- 1989-04-17 EP EP89905133A patent/EP0426677B1/de not_active Expired - Lifetime
- 1989-04-17 JP JP1504917A patent/JPH04501603A/ja active Pending
- 1989-05-04 CA CA000598713A patent/CA1313546C/en not_active Expired - Fee Related
- 1989-07-12 NZ NZ229921A patent/NZ229921A/en unknown
- 1989-07-19 PH PH38962A patent/PH26943A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0426677A1 (de) | 1991-05-15 |
| WO1990001173A1 (en) | 1990-02-08 |
| CA1313546C (en) | 1993-02-09 |
| JPH04501603A (ja) | 1992-03-19 |
| DE68913743D1 (de) | 1994-04-14 |
| GB8817759D0 (en) | 1988-09-01 |
| AU3542589A (en) | 1990-02-19 |
| DE68913743T2 (de) | 1994-06-23 |
| US5053616A (en) | 1991-10-01 |
| AU622673B2 (en) | 1992-04-16 |
| EP0426677B1 (de) | 1994-03-09 |
| NZ229921A (en) | 1991-06-25 |
| GB2221294A (en) | 1990-01-31 |
| GB2221294B (en) | 1993-03-03 |
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