EP0091276A3 - Sound pattern discrimination system - Google Patents

Sound pattern discrimination system Download PDF

Info

Publication number
EP0091276A3
EP0091276A3 EP83301802A EP83301802A EP0091276A3 EP 0091276 A3 EP0091276 A3 EP 0091276A3 EP 83301802 A EP83301802 A EP 83301802A EP 83301802 A EP83301802 A EP 83301802A EP 0091276 A3 EP0091276 A3 EP 0091276A3
Authority
EP
European Patent Office
Prior art keywords
detector
circuit
output
producing
signal
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.)
Withdrawn
Application number
EP83301802A
Other languages
German (de)
French (fr)
Other versions
EP0091276A2 (en
Inventor
Marten C. Jensen
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.)
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP0091276A2 publication Critical patent/EP0091276A2/en
Publication of EP0091276A3 publication Critical patent/EP0091276A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G08G1/087—Override of traffic control, e.g. by signal transmitted by an emergency vehicle
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal

Abstract

Apparatus for the selective monitoring and recognition of sounds of different frequencies including a first detector for recognising signals of a first frequency and producing an output signal indicative thereof, at least one further sound detector for recognising a second sound signal of different frequency and producing an output signal indicative thereof, a time delay circuit responsive to the output signal from the first detector, and producing a time delayed enable signal to enable a further circuit connected to the output of the further detector to pass signals from the further detector through the further circuit in response to the enable signal and the output of the further circuit being coupled to a control circuit to produce a control signal only in response to the receipt of signals of said first and different frequency in a sequential time pattern established by the time delay circuit and said further circuit.
EP83301802A 1982-04-05 1983-03-30 Sound pattern discrimination system Withdrawn EP0091276A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36554882A 1982-04-05 1982-04-05
US365548 1982-04-05

Publications (2)

Publication Number Publication Date
EP0091276A2 EP0091276A2 (en) 1983-10-12
EP0091276A3 true EP0091276A3 (en) 1985-03-06

Family

ID=23439317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83301802A Withdrawn EP0091276A3 (en) 1982-04-05 1983-03-30 Sound pattern discrimination system

Country Status (3)

Country Link
EP (1) EP0091276A3 (en)
JP (1) JPS59199A (en)
AU (1) AU1308383A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4864297A (en) * 1987-10-14 1989-09-05 Tekedge Development Corp. Siren detector
DE4033188A1 (en) * 1990-10-19 1992-04-23 Daimler Benz Ag WINDOW DISC OF A VEHICLE
GB2567488A (en) * 2017-10-16 2019-04-17 Lightwaverf Tech Ltd An audible alarm/sound monitoring system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735342A (en) * 1971-03-10 1973-05-22 Borge Inc Alerting system responsive to a plural tone signal
US3881169A (en) * 1973-06-01 1975-04-29 Traffic Control Products Inc Emergency vehicle traffic controller
US3992656A (en) * 1975-09-11 1976-11-16 Joy Ivan L Siren detector
FR2392846A1 (en) * 1977-06-02 1978-12-29 Wandel & Goltermann SIGNALING PROCESS FOR VEHICLES ENTITLED TO PRIORITY AND DEVICE USED TO CARRY OUT THIS PROCEDURE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2380612A1 (en) * 1977-02-09 1978-09-08 Thomson Csf SPEECH SIGNAL DISCRIMINATION DEVICE AND ALTERNATION SYSTEM INCLUDING SUCH A DEVICE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735342A (en) * 1971-03-10 1973-05-22 Borge Inc Alerting system responsive to a plural tone signal
US3881169A (en) * 1973-06-01 1975-04-29 Traffic Control Products Inc Emergency vehicle traffic controller
US3992656A (en) * 1975-09-11 1976-11-16 Joy Ivan L Siren detector
FR2392846A1 (en) * 1977-06-02 1978-12-29 Wandel & Goltermann SIGNALING PROCESS FOR VEHICLES ENTITLED TO PRIORITY AND DEVICE USED TO CARRY OUT THIS PROCEDURE

Also Published As

Publication number Publication date
AU1308383A (en) 1983-10-13
EP0091276A2 (en) 1983-10-12
JPS59199A (en) 1984-01-05

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

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18D Application deemed to be withdrawn

Effective date: 19851107

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JENSEN, MARTEN C.