ES2044158T3 - Procedimiento y circuitos electronicos para interrogar a distancia por hilo unos receptores electricos. - Google Patents
Procedimiento y circuitos electronicos para interrogar a distancia por hilo unos receptores electricos.Info
- Publication number
- ES2044158T3 ES2044158T3 ES89400878T ES89400878T ES2044158T3 ES 2044158 T3 ES2044158 T3 ES 2044158T3 ES 89400878 T ES89400878 T ES 89400878T ES 89400878 T ES89400878 T ES 89400878T ES 2044158 T3 ES2044158 T3 ES 2044158T3
- Authority
- ES
- Spain
- Prior art keywords
- wire
- interrogating
- remotely
- procedure
- electronic circuits
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
- H04Q9/14—Calling by using pulses
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Selective Calling Equipment (AREA)
- Burglar Alarm Systems (AREA)
- Geophysics And Detection Of Objects (AREA)
- Lock And Its Accessories (AREA)
Abstract
SE TRATA DE UN CIRCUITO ELECTRONICO PARA INTERROGAR UN RECEPTOR (8) A DISTANCIA MEDIANTE UNA LINEA DE DOS HILOS (9) Y PARA DETECTAR LAS SEÑALES DE RESPUESTA (S2) EMITIDAS POR ESTE RECEPTOR, CONSTANDO DICHO CIRCUITO DE ELEMENTOS (7) PARA COMPARAR CON UNA TENSION DE REFERENCIA LA TENSION REAL (U'') QUE DEFINE DICHAS SEÑALES DE RESPUESTA. ESTA TENSION DE REFERENCIA ES UNA TENSION VARIABLE PONDERADA (P) OBTENIDA POR FILTRADO DE PASO BAJO, EN UN CIRCUITO RESISTENCIA (12)-CAPACIDAD (13), DE LA MENCIONADA TENSION REAL.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8804294A FR2629609B1 (fr) | 1988-03-31 | 1988-03-31 | Perfectionnements aux circuits electroniques d'interrogation |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2044158T3 true ES2044158T3 (es) | 1994-01-01 |
Family
ID=9364851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES89400878T Expired - Lifetime ES2044158T3 (es) | 1988-03-31 | 1989-03-29 | Procedimiento y circuitos electronicos para interrogar a distancia por hilo unos receptores electricos. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5014050A (es) |
EP (1) | EP0335799B1 (es) |
DE (1) | DE68908449T2 (es) |
ES (1) | ES2044158T3 (es) |
FR (1) | FR2629609B1 (es) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0650557B2 (ja) * | 1989-07-04 | 1994-06-29 | 株式会社日立製作所 | フィールド計器の通信方式 |
DE4117007A1 (de) * | 1991-05-24 | 1992-11-26 | Texas Instruments Deutschland | Schaltungsanordnung zum erkennen eines von einer zentraleinheit ueber einen bus in form einer spannungspegelaenderung zu einem peripheriegeraet uebertragenen steuersignals |
DE19518228C2 (de) * | 1995-05-12 | 2001-08-09 | Whd Elektron Prueftech Gmbh | Verfahren, Anordnungen, Vorrichtungen und Prüfzonen von zu prüfenden Objekten zur Echtheitsprüfung sowie Anwendung derselben |
US5815087A (en) * | 1996-04-02 | 1998-09-29 | Ford Motor Company | Anti-theft sysem for a removable accessory of an automotve vehicle |
DE19723645B4 (de) * | 1997-06-05 | 2006-04-13 | Endress + Hauser Gmbh + Co. Kg | Anordnung zur Signalübertragung zwischen einer Geberstelle und einer Empfangsstelle |
DE19948765A1 (de) * | 1999-10-09 | 2001-01-25 | Telefunken Microelectron | Verfahren zur Signalübertragung in einem Bussystem zwischen einer Zentraleinheit und einer Anzahl von Modulen durch Veränderung der Stromaufnahme eines Moduls aufgelagert auf eine Versorgungsgleichspannung |
US9558604B2 (en) | 2009-02-10 | 2017-01-31 | Yikes Llc | System for permitting secure access to a restricted area |
US8791790B2 (en) * | 2009-02-10 | 2014-07-29 | Yikes Llc | System and method for accessing a structure using a mobile device |
US9367975B2 (en) | 2009-02-10 | 2016-06-14 | Yikes Llc | System for permitting secure access to a restricted area |
US10818119B2 (en) | 2009-02-10 | 2020-10-27 | Yikes Llc | Radio frequency antenna and system for presence sensing and monitoring |
US20100201536A1 (en) * | 2009-02-10 | 2010-08-12 | William Benjamin Robertson | System and method for accessing a structure using a mobile device |
US9336635B2 (en) | 2009-02-10 | 2016-05-10 | Yikes Llc | System and method for permitting secure access to a structure |
US10085135B2 (en) | 2009-02-10 | 2018-09-25 | Yikes Llc | Radio frequency patch antenna and system for permitting secure access to a restricted area |
AU2019238112A1 (en) | 2018-03-19 | 2020-11-12 | Simpello Llc | System and method for detecting presence within a strictly defined wireless zone |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3783387A (en) * | 1972-06-14 | 1974-01-01 | Gen Electric | Noise detector circuit |
DE2521388A1 (de) * | 1975-05-14 | 1976-11-25 | Hartmann & Braun Ag | Schaltungsanordnung zur uebertragung digitaler daten |
US4520488A (en) * | 1981-03-02 | 1985-05-28 | Honeywell, Inc. | Communication system and method |
FR2509889A1 (fr) * | 1981-07-17 | 1983-01-21 | Asulab Sa | Installation de collecte de donnees |
JPS5945740A (ja) * | 1982-09-09 | 1984-03-14 | Fuji Electric Co Ltd | 測定値伝送システム |
FR2550901B1 (fr) * | 1983-08-19 | 1986-08-08 | Protecbat Detection Electro Fs | Procede de transmission de messages entre un poste central et plusieurs postes eloignes |
US4806905A (en) * | 1986-10-01 | 1989-02-21 | Honeywell Inc. | Transmitter for transmitting on a two-wire transmitting line |
-
1988
- 1988-03-31 FR FR8804294A patent/FR2629609B1/fr not_active Expired - Lifetime
-
1989
- 1989-03-29 US US07/330,184 patent/US5014050A/en not_active Expired - Lifetime
- 1989-03-29 DE DE89400878T patent/DE68908449T2/de not_active Expired - Fee Related
- 1989-03-29 EP EP89400878A patent/EP0335799B1/fr not_active Expired - Lifetime
- 1989-03-29 ES ES89400878T patent/ES2044158T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0335799A1 (fr) | 1989-10-04 |
EP0335799B1 (fr) | 1993-08-18 |
FR2629609B1 (fr) | 1990-12-28 |
DE68908449D1 (de) | 1993-09-23 |
DE68908449T2 (de) | 1993-12-09 |
US5014050A (en) | 1991-05-07 |
FR2629609A1 (fr) | 1989-10-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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