EP0401673A1 - Récepteur pour impulsions électromagnétiques codées - Google Patents

Récepteur pour impulsions électromagnétiques codées Download PDF

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Publication number
EP0401673A1
EP0401673A1 EP90110319A EP90110319A EP0401673A1 EP 0401673 A1 EP0401673 A1 EP 0401673A1 EP 90110319 A EP90110319 A EP 90110319A EP 90110319 A EP90110319 A EP 90110319A EP 0401673 A1 EP0401673 A1 EP 0401673A1
Authority
EP
European Patent Office
Prior art keywords
receiver
circuit
receiver according
transmitter
microcontroller
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.)
Granted
Application number
EP90110319A
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German (de)
English (en)
Other versions
EP0401673B1 (fr
Inventor
Karl-Heinz Dipl. Ing. Gimbel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gimbel Karl-Heinz Dipl Ing
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19893918131 external-priority patent/DE3918131A1/de
Application filed by Individual filed Critical Individual
Publication of EP0401673A1 publication Critical patent/EP0401673A1/fr
Application granted granted Critical
Publication of EP0401673B1 publication Critical patent/EP0401673B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Definitions

  • the output functions of the receiver can only be triggered if the transmitter is at a relatively short (a few meters) distance from the receiver. This is especially true if there are any electromagnetic wave shielding parts between the transmitter and receiver. In this respect, there is a need to increase the range of the transceiver system.
  • the transmission power cannot be increased arbitrarily, this being mainly due to the fact that the ferrite antennas that are often used cannot radiate sufficient power, and unwieldy rod antennas are reluctant to be used in such systems.
  • This object is achieved in that a low-pass filter is provided behind the demodulator for the useful signal from the HF receiver circuit.
  • the low-pass filter has at least two RC elements. This double filtering has a noticeable effect in terms of error reduction and the associated increase in range.
  • the sensitivity of the receiver and the range dependent on it can be further increased if, according to a particular embodiment, the low-pass filter has an active amplification. This results in a particularly steep-sided low-pass characteristic. It is particularly advantageous if existing components of the receiver are used for the reinforcement, e.g. the input amplifier of the level conversion circuit.
  • the preamplifier has a transistor, the signal being coupled out at the collector of the transistor.
  • the receiver has a so-called microcontroller, which has at least eight switching outputs.
  • the receiver has a connection for a PC.
  • a microcontroller can pass on the received signals to the PC for further testing and processing.
  • the number of stored channels with access authorization as well as the number of functions to be controlled can be expanded practically indefinitely.
  • the EEPROM expediently only contains an identifier which allows the microcontroller to establish the connection to the PC.
  • FIG. 1 The block diagram of FIG. 1 largely corresponds to the figure of DE application P 37 41 324.4, but the HF receiver has an additional part, namely the preamplifier, under the reference number 375 and the block labeled "Gain control and demodulator" below 385 contains an additional low pass filter.
  • the LF decoder can have an EEPROM 265 instead of a DIL switch and part of the programming circuit.
  • a low-pass filter 385 has been inserted, which essentially consists of two RC elements R2, C3; R3, C4 exists.
  • the operational amplifier I2 of the level converter is used directly for active amplification during filtering, so that the desired filter curve of the selected filter type is reliably achieved.
  • FIG. 3 shows the remaining part of the circuit diagram of the receiver, the main difference compared to the corresponding FIG. 5 being the P 37 41 324.4 that the DIL switch 260 has been omitted and at least one EEPROM is now located on the circuit board.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Burglar Alarm Systems (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Lock And Its Accessories (AREA)
  • Selective Calling Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
EP90110319A 1989-06-03 1990-05-31 Récepteur pour impulsions électromagnétiques codées Expired - Lifetime EP0401673B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3918131 1989-06-03
DE19893918131 DE3918131A1 (de) 1987-12-05 1989-06-03 Empfaenger fuer codierte elektromagnetische impulse

Publications (2)

Publication Number Publication Date
EP0401673A1 true EP0401673A1 (fr) 1990-12-12
EP0401673B1 EP0401673B1 (fr) 1996-09-11

Family

ID=6381995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110319A Expired - Lifetime EP0401673B1 (fr) 1989-06-03 1990-05-31 Récepteur pour impulsions électromagnétiques codées

Country Status (3)

Country Link
EP (1) EP0401673B1 (fr)
AT (1) ATE142810T1 (fr)
DE (1) DE59010488D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681492A1 (fr) * 1991-09-16 1993-03-19 Somfy Installation comportant des emetteurs et des recepteurs codes.
FR2685505A1 (fr) * 1991-12-19 1993-06-25 Texton Procede de programmation d'un agencement de telecommande d'un dispositif actionneur et agencement pour la mise en óoeuvre de ce procede.
DE9311524U1 (de) * 1993-08-02 1993-10-21 Maschinenbau Haldenwang GmbH & Co KG, 87490 Haldenwang Vorrichtung zur Anzeige und Steuerung von Bremsdruck-Prüfanlagen für Kraftfahrzeuge
AT398871B (de) * 1992-07-13 1995-02-27 Vaillant Gmbh Sende-empfänger-funkstrecke
USRE35364E (en) * 1985-10-29 1996-10-29 The Chamberlain Group, Inc. Coding system for multiple transmitters and a single receiver for a garage door opener
EP0910056A1 (fr) * 1997-10-17 1999-04-21 Theben-Werk Zeitautomatik Gmbh Régulateur de chauffage commandé par radio
CN101950162A (zh) * 2010-08-05 2011-01-19 珠海东之尼电子科技有限公司 智能遥控开关

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1095227A (en) * 1963-12-24 1967-12-13 Telefunken Patent Improvements in input stages of radio receivers
DE2941394A1 (de) * 1979-10-12 1981-04-30 Adolf Tedsen KG, 2077 Trittau Vorrichtung zum fernsteuern von tueren bzw. toren
DE3104242A1 (de) * 1980-02-08 1982-01-07 Hitachi, Ltd., Tokyo Antennen-abstimmschaltung fuer am-rundfunkempfaenger
US4380762A (en) * 1980-01-31 1983-04-19 Gaetano Capasso Polyfunction programmable data receiver
EP0292217A2 (fr) * 1987-05-21 1988-11-23 Trw Inc. Dispositif de commande à distance pour serrures de porte
EP0306598A2 (fr) * 1987-09-08 1989-03-15 Clifford Electronics, Inc. Systèmes d'accès avec commande à distance électroniquement programmables
EP0319781A2 (fr) * 1987-12-05 1989-06-14 Gimbel, Karl-Heinz, Dipl. Ing. Emetteur portatif pour la transmission d'impulsions électromagnétiques codées et récepteur accordé

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1095227A (en) * 1963-12-24 1967-12-13 Telefunken Patent Improvements in input stages of radio receivers
DE2941394A1 (de) * 1979-10-12 1981-04-30 Adolf Tedsen KG, 2077 Trittau Vorrichtung zum fernsteuern von tueren bzw. toren
US4380762A (en) * 1980-01-31 1983-04-19 Gaetano Capasso Polyfunction programmable data receiver
DE3104242A1 (de) * 1980-02-08 1982-01-07 Hitachi, Ltd., Tokyo Antennen-abstimmschaltung fuer am-rundfunkempfaenger
EP0292217A2 (fr) * 1987-05-21 1988-11-23 Trw Inc. Dispositif de commande à distance pour serrures de porte
EP0306598A2 (fr) * 1987-09-08 1989-03-15 Clifford Electronics, Inc. Systèmes d'accès avec commande à distance électroniquement programmables
EP0319781A2 (fr) * 1987-12-05 1989-06-14 Gimbel, Karl-Heinz, Dipl. Ing. Emetteur portatif pour la transmission d'impulsions électromagnétiques codées et récepteur accordé

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FUNKSCHAU. vol. 41, no. 22, 02 November 1969, MUNCHEN DE Seiten 801 - 802; G.P.VOSS: "Störsichere Funkfernsteuerung für Garagentore" *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE37986E1 (en) 1984-05-30 2003-02-11 The Chamberlain Group, Inc. Coding system for multiple transmitters and a single receiver
USRE35364E (en) * 1985-10-29 1996-10-29 The Chamberlain Group, Inc. Coding system for multiple transmitters and a single receiver for a garage door opener
FR2681492A1 (fr) * 1991-09-16 1993-03-19 Somfy Installation comportant des emetteurs et des recepteurs codes.
EP0533623A1 (fr) * 1991-09-16 1993-03-24 Somfy Installation comportant des émetteurs et des récepteurs codés
FR2685505A1 (fr) * 1991-12-19 1993-06-25 Texton Procede de programmation d'un agencement de telecommande d'un dispositif actionneur et agencement pour la mise en óoeuvre de ce procede.
AT398871B (de) * 1992-07-13 1995-02-27 Vaillant Gmbh Sende-empfänger-funkstrecke
DE9311524U1 (de) * 1993-08-02 1993-10-21 Maschinenbau Haldenwang GmbH & Co KG, 87490 Haldenwang Vorrichtung zur Anzeige und Steuerung von Bremsdruck-Prüfanlagen für Kraftfahrzeuge
EP0910056A1 (fr) * 1997-10-17 1999-04-21 Theben-Werk Zeitautomatik Gmbh Régulateur de chauffage commandé par radio
CN101950162A (zh) * 2010-08-05 2011-01-19 珠海东之尼电子科技有限公司 智能遥控开关

Also Published As

Publication number Publication date
EP0401673B1 (fr) 1996-09-11
ATE142810T1 (de) 1996-09-15
DE59010488D1 (de) 1996-10-17

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