JPS6020694U - 準安定雑音除去システム - Google Patents
準安定雑音除去システムInfo
- Publication number
- JPS6020694U JPS6020694U JP1984077207U JP7720784U JPS6020694U JP S6020694 U JPS6020694 U JP S6020694U JP 1984077207 U JP1984077207 U JP 1984077207U JP 7720784 U JP7720784 U JP 7720784U JP S6020694 U JPS6020694 U JP S6020694U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- metastable
- samples
- tag circuit
- receiving means
- 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
- 230000004913 activation Effects 0.000 claims 1
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 230000005672 electromagnetic field Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
- G08B13/2468—Antenna in system and the related signal processing
- G08B13/2471—Antenna signal processing by receiver or emitter
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- Burglar Alarm Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Emergency Alarm Devices (AREA)
- Alarm Systems (AREA)
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。
め要約のデータは記録されません。
Description
第1図は、本考案を用いた電子安全システムのブロック
図。第2図は、本考案の雑音消去回路のディジタル回路
ブロック図。第3A図−3D図は、第2図のシス゛テム
の動作を示すために利用する波形。第4図は、第2図の
具体例の位相同期ロジックのブロック図。第5図は、安
全システムの送信器と受債器間の直接接続を必要としな
い本考案のもう一つの具体例のブロック図。第6図は、
本考案の雑音消去回路のアナログ回路実現のブロック図
。
図。第2図は、本考案の雑音消去回路のディジタル回路
ブロック図。第3A図−3D図は、第2図のシス゛テム
の動作を示すために利用する波形。第4図は、第2図の
具体例の位相同期ロジックのブロック図。第5図は、安
全システムの送信器と受債器間の直接接続を必要としな
い本考案のもう一つの具体例のブロック図。第6図は、
本考案の雑音消去回路のアナログ回路実現のブロック図
。
Claims (1)
- 【実用新案登録請求の範囲】 1 所定の周波数範囲に渡り繰返し掃引される周波数で
所定の領域に電磁界を提供するための送信手段と; 該所定周波数範囲内で少なくとも1つの共振周波数を有
する共振タグ回路と; 該所定領域に存在するタグ回路から少なくとも1つの該
共振周波数の存在を検出するための受信手段と; 該受信手段からの信号に応じて警報作動の出力表示を提
供するための手段ど; 該タグ回路と同じ共振特性を有し時間的に準安定である
該受信信号に於けるにせの信号を判別するように動作す
る雑音除去手段と を具備することを特徴とする電子安全システム。 2 該準安定信号の標本を記憶するように動作する手段
と; 該準安定信号を除去するように該受信手段からの信号か
ら該記憶標本を減算するように動作する手段と を該雑音除去手段が含む実用新案登録請求の範囲第1項
記載のシステム。 3 該記憶手段が該準安定信号の記憶標本を含む循環遅
延線を含む実用新案登録請求の範囲第2項記載のシステ
ム。 4 該記憶手段が、記憶された該準安定信号めデータ標
本を含むデジタル・メモリ手段を含む実用新案登録請求
の範囲第2項記載のシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US839662 | 1977-10-05 | ||
US05/839,662 US4168496A (en) | 1977-10-05 | 1977-10-05 | Quasi-stationary noise cancellation system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6020694U true JPS6020694U (ja) | 1985-02-13 |
Family
ID=25280344
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12125378A Pending JPS5477600A (en) | 1977-10-05 | 1978-10-03 | Quasiistable noise removing system |
JP1984077207U Pending JPS6020694U (ja) | 1977-10-05 | 1984-05-28 | 準安定雑音除去システム |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12125378A Pending JPS5477600A (en) | 1977-10-05 | 1978-10-03 | Quasiistable noise removing system |
Country Status (13)
Country | Link |
---|---|
US (1) | US4168496A (ja) |
JP (2) | JPS5477600A (ja) |
AU (1) | AU518385B2 (ja) |
CA (1) | CA1118865A (ja) |
DE (1) | DE2843293C2 (ja) |
DK (1) | DK158420C (ja) |
ES (1) | ES473683A1 (ja) |
FR (1) | FR2405527A1 (ja) |
GB (1) | GB2005518B (ja) |
IT (1) | IT1108102B (ja) |
MX (1) | MX144458A (ja) |
SE (1) | SE439703B (ja) |
ZA (1) | ZA784992B (ja) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5383995A (en) * | 1979-12-28 | 1995-01-24 | Flex Products, Inc. | Method of making optical thin flakes and inks incorporating the same |
DE3071890D1 (en) * | 1980-08-20 | 1987-02-19 | Secom Co Ltd | Ultrasonic warning system |
US4321586A (en) * | 1980-08-21 | 1982-03-23 | Knogo Corporation | Article theft detection |
US4539558A (en) * | 1981-11-24 | 1985-09-03 | Shin International, Inc. | Antitheft system |
WO1983003203A1 (en) * | 1982-03-15 | 1983-09-29 | Progressive Dynamics | Method and apparatus for theft detection systems |
US4535323A (en) * | 1982-03-15 | 1985-08-13 | Progressive Dynamics, Inc. | Preamplifying and signal processing method and apparatus for theft detection systems |
US4623877A (en) * | 1983-06-30 | 1986-11-18 | Knogo Corporation | Method and apparatus for detection of targets in an interrogation zone |
CA1234892A (en) * | 1984-02-16 | 1988-04-05 | Pierre Taillefer | Security tag detection system |
US4668942A (en) * | 1984-11-19 | 1987-05-26 | Progressive Dynamics, Inc. | Signal analysis apparatus including recursive filter for electromagnetic surveillance system |
US4740944A (en) * | 1985-02-19 | 1988-04-26 | Laser Magnetic Storage International Company | Optical disk phase lock loop with comb filter |
US4779077A (en) * | 1987-04-13 | 1988-10-18 | Lichtblau G J | Continuously armed high reliability pulse train processor |
US4854113A (en) * | 1987-12-29 | 1989-08-08 | Ford New Holland, Inc. | Digital noise cancellation in a metal detector |
US4975681A (en) * | 1989-12-07 | 1990-12-04 | Sensormatic Electronics Corporation | Interfering signal rejection circuitry and electronic article surveillance system and method employing same |
US5023598A (en) * | 1990-01-02 | 1991-06-11 | Pitney Bowes Inc. | Digital signal processor for electronic article gates |
US5300922A (en) * | 1990-05-29 | 1994-04-05 | Sensormatic Electronics Corporation | Swept frequency electronic article surveillance system having enhanced facility for tag signal detection |
SE9203479L (sv) * | 1992-01-20 | 1993-07-21 | Rso Corp | Saett och anordning vid elektronisk identifiering |
SE469673B (sv) * | 1992-01-20 | 1993-08-16 | Rso Corp | Saett och anordning vid beroeringsfri avkaenning av objekt |
SE9203258L (sv) * | 1992-01-20 | 1993-07-21 | Rso Corp | Saett och anordning vid laeges- och vinkelmaetning |
US5508684A (en) * | 1995-03-02 | 1996-04-16 | Becker; Richard S. | Article tag |
DE19642985A1 (de) * | 1996-10-18 | 1998-04-23 | Esselte Meto Int Gmbh | Vorrichtung zur Überwachung eines elektronischen Sicherungselementes in einer Abfragezone |
DE19644927A1 (de) * | 1996-10-29 | 1998-04-30 | Esselte Meto Int Gmbh | Vorrichtung zur Überwachung eines elektronischen Sicherungselementes in einer Abfragezone |
DE19647905A1 (de) * | 1996-11-20 | 1998-05-28 | Meto International Gmbh | Vorrichtung zur Überwachung eines elektronischen Sicherungselementes in einer Abfragezone |
US5790031A (en) * | 1997-01-13 | 1998-08-04 | Trw Inc. | Apparatus and method for sensing a rearward facing child seat with error detection |
US6249229B1 (en) | 1999-08-16 | 2001-06-19 | Checkpoint Systems, Inc., A Corp. Of Pennsylvania | Electronic article security system employing variable time shifts |
WO2002011302A2 (en) | 2000-08-02 | 2002-02-07 | Mobiles Satellite Ventures Lp | Coordinated satellite-terrestrial frequency reuse |
US6859652B2 (en) | 2000-08-02 | 2005-02-22 | Mobile Satellite Ventures, Lp | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US7792488B2 (en) | 2000-12-04 | 2010-09-07 | Atc Technologies, Llc | Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength |
US6947860B2 (en) * | 2002-08-09 | 2005-09-20 | Sensormatic Electronics Corporation | Electronic article surveillance system stationary tag response canceller |
AU2002951697A0 (en) * | 2002-09-27 | 2002-10-17 | Tagsys Australia Pty Ltd | Method of Maintaining pseudo-synchranism with a finite length transmitted clock in electronic label systems |
NL1026690C2 (nl) * | 2004-07-20 | 2006-01-23 | Nedap Nv | Elektronisch detectiesysteem voor het detecteren van antidiefstal- en/of identificatielabels. |
US7460059B1 (en) * | 2006-10-25 | 2008-12-02 | Sandia Corporation | Removing interfering clutter associated with radar pulses that an airborne radar receives from a radar transponder |
JP5596927B2 (ja) * | 2009-02-06 | 2014-09-24 | アルプス電気株式会社 | 車両用携帯機 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4877695A (ja) * | 1971-12-30 | 1973-10-18 | ||
JPS5034500A (ja) * | 1973-07-31 | 1975-04-02 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3696379A (en) * | 1970-12-02 | 1972-10-03 | Knogo Corp | Apparatus for article theft detection |
US3743768A (en) * | 1971-04-02 | 1973-07-03 | Halliburton Co | Method and apparatus for electronically monitoring a field of view |
US3810147A (en) * | 1971-12-30 | 1974-05-07 | G Lichtblau | Electronic security system |
US3863244A (en) * | 1972-06-14 | 1975-01-28 | Lichtblau G J | Electronic security system having improved noise discrimination |
US3885234A (en) * | 1972-03-17 | 1975-05-20 | Uro Electronics Ind Co Ltd | Ultrasonic wave type alarm device for depicting a moving object |
JPS5623161B2 (ja) * | 1973-12-24 | 1981-05-29 | ||
JPS50142057A (ja) * | 1974-05-01 | 1975-11-15 | ||
US3988533A (en) * | 1974-09-30 | 1976-10-26 | Video Tek, Inc. | Video-type universal motion and intrusion detection system |
IT1032162B (it) * | 1974-12-10 | 1979-05-30 | Cnen | Apparecchiatura per registrare in una memoria traiettorie di tracce di oggetti |
-
1977
- 1977-10-05 US US05/839,662 patent/US4168496A/en not_active Expired - Lifetime
-
1978
- 1978-09-01 ZA ZA00784992A patent/ZA784992B/xx unknown
- 1978-09-01 AU AU39471/78A patent/AU518385B2/en not_active Expired
- 1978-09-14 GB GB7836791A patent/GB2005518B/en not_active Expired
- 1978-09-25 CA CA000312029A patent/CA1118865A/en not_active Expired
- 1978-09-26 FR FR7827491A patent/FR2405527A1/fr active Granted
- 1978-09-26 ES ES473683A patent/ES473683A1/es not_active Expired
- 1978-09-26 MX MX175012A patent/MX144458A/es unknown
- 1978-10-03 JP JP12125378A patent/JPS5477600A/ja active Pending
- 1978-10-04 DE DE2843293A patent/DE2843293C2/de not_active Expired
- 1978-10-04 SE SE7810387A patent/SE439703B/sv not_active IP Right Cessation
- 1978-10-04 IT IT69289/78A patent/IT1108102B/it active
- 1978-10-04 DK DK441978A patent/DK158420C/da not_active IP Right Cessation
-
1984
- 1984-05-28 JP JP1984077207U patent/JPS6020694U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4877695A (ja) * | 1971-12-30 | 1973-10-18 | ||
JPS5034500A (ja) * | 1973-07-31 | 1975-04-02 |
Also Published As
Publication number | Publication date |
---|---|
DE2843293A1 (de) | 1979-04-12 |
IT7869289A0 (it) | 1978-10-04 |
FR2405527A1 (fr) | 1979-05-04 |
GB2005518B (en) | 1982-04-21 |
DK158420B (da) | 1990-05-14 |
AU518385B2 (en) | 1981-10-01 |
US4168496A (en) | 1979-09-18 |
DE2843293C2 (de) | 1985-12-05 |
SE439703B (sv) | 1985-06-24 |
FR2405527B1 (ja) | 1983-01-14 |
DK158420C (da) | 1990-10-22 |
JPS5477600A (en) | 1979-06-21 |
ZA784992B (en) | 1979-09-26 |
IT1108102B (it) | 1985-12-02 |
CA1118865A (en) | 1982-02-23 |
SE7810387L (sv) | 1979-04-06 |
MX144458A (es) | 1981-10-16 |
AU3947178A (en) | 1980-03-06 |
GB2005518A (en) | 1979-04-19 |
DK441978A (da) | 1979-04-06 |
ES473683A1 (es) | 1979-10-16 |
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