EP0290829A3 - Arrangement for decoding signals - Google Patents

Arrangement for decoding signals Download PDF

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Publication number
EP0290829A3
EP0290829A3 EP88106346A EP88106346A EP0290829A3 EP 0290829 A3 EP0290829 A3 EP 0290829A3 EP 88106346 A EP88106346 A EP 88106346A EP 88106346 A EP88106346 A EP 88106346A EP 0290829 A3 EP0290829 A3 EP 0290829A3
Authority
EP
European Patent Office
Prior art keywords
frequency
signal
derived
respect
signals
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
EP88106346A
Other languages
German (de)
Other versions
EP0290829B1 (en
EP0290829A2 (en
Inventor
Wilhelm Hegeler
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke GmbH
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
Application filed by Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Priority to AT88106346T priority Critical patent/ATE71757T1/en
Publication of EP0290829A2 publication Critical patent/EP0290829A2/en
Publication of EP0290829A3 publication Critical patent/EP0290829A3/en
Application granted granted Critical
Publication of EP0290829B1 publication Critical patent/EP0290829B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G08G1/094—Hardware aspects; Signal processing or signal properties, e.g. frequency bands

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Manipulation Of Pulses (AREA)
  • Error Detection And Correction (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

In an arrangement for decoding signals which are received in addition to other signals as a modulation of radio waves and whose respective frequency constitutes a specific item of information, a time basis signal of constant frequency is generated from which a reference signal with a controllable frequency position and phase position is derived with the aid of a microprocessor. An output signal is derived if there is a coincidence of the reference signal with the received signal with respect to phase and frequency. The time basis signal can preferably be derived from the instruction frequency of the microprocessor by running through program loops of identical length at least in the timing means. A register which is incremented by changeable values serves for deriving the reference frequency. In the case of two superimposed signals, the one is evaluated with respect to frequency and the other with respect to the pulse duty factor of a binary signal. <IMAGE>
EP88106346A 1987-05-15 1988-04-21 Arrangement for decoding signals Expired - Lifetime EP0290829B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88106346T ATE71757T1 (en) 1987-05-15 1988-04-21 ARRANGEMENT FOR DECODING SIGNALS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3716285 1987-05-15
DE19873716285 DE3716285A1 (en) 1987-05-15 1987-05-15 ARRANGEMENT FOR DECODING SIGNALS

Publications (3)

Publication Number Publication Date
EP0290829A2 EP0290829A2 (en) 1988-11-17
EP0290829A3 true EP0290829A3 (en) 1989-03-29
EP0290829B1 EP0290829B1 (en) 1992-01-15

Family

ID=6327621

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106346A Expired - Lifetime EP0290829B1 (en) 1987-05-15 1988-04-21 Arrangement for decoding signals

Country Status (3)

Country Link
EP (1) EP0290829B1 (en)
AT (1) ATE71757T1 (en)
DE (2) DE3716285A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2006577A (en) * 1977-10-14 1979-05-02 Gottstein Dietrich Radio Receiver for Traffic Information Broadcasts
GB2120047A (en) * 1982-04-28 1983-11-23 British Broadcasting Corp Radio receivers and broadcasting network
DE3233829A1 (en) * 1982-09-11 1984-03-15 Blaupunkt-Werke Gmbh, 3200 Hildesheim Method for demodulating amplitude-modulated input signals and circuit arrangement therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2006577A (en) * 1977-10-14 1979-05-02 Gottstein Dietrich Radio Receiver for Traffic Information Broadcasts
GB2120047A (en) * 1982-04-28 1983-11-23 British Broadcasting Corp Radio receivers and broadcasting network
DE3233829A1 (en) * 1982-09-11 1984-03-15 Blaupunkt-Werke Gmbh, 3200 Hildesheim Method for demodulating amplitude-modulated input signals and circuit arrangement therefor

Also Published As

Publication number Publication date
EP0290829B1 (en) 1992-01-15
DE3716285A1 (en) 1988-11-24
DE3867697D1 (en) 1992-02-27
EP0290829A2 (en) 1988-11-17
ATE71757T1 (en) 1992-02-15

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