SE419280B - Frekvensanpassad signalanordning for horselskadade - Google Patents

Frekvensanpassad signalanordning for horselskadade

Info

Publication number
SE419280B
SE419280B SE7909920A SE7909920A SE419280B SE 419280 B SE419280 B SE 419280B SE 7909920 A SE7909920 A SE 7909920A SE 7909920 A SE7909920 A SE 7909920A SE 419280 B SE419280 B SE 419280B
Authority
SE
Sweden
Prior art keywords
signal
frequency
flop
flip
output
Prior art date
Application number
SE7909920A
Other languages
English (en)
Swedish (sv)
Other versions
SE7909920L (sv
Inventor
K Ajland
Original Assignee
Medicinsk Teknisk Konsultation
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 Medicinsk Teknisk Konsultation filed Critical Medicinsk Teknisk Konsultation
Priority to SE7909920A priority Critical patent/SE419280B/sv
Priority to US06/211,338 priority patent/US4631517A/en
Priority to JP16792980A priority patent/JPS5694399A/ja
Priority to DK509880A priority patent/DK509880A/da
Priority to EP80850181A priority patent/EP0030219B1/en
Priority to NO803614A priority patent/NO147087C/no
Priority to DE8080850181T priority patent/DE3068136D1/de
Priority to FI803701A priority patent/FI803701L/fi
Publication of SE7909920L publication Critical patent/SE7909920L/xx
Publication of SE419280B publication Critical patent/SE419280B/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
    • H04R25/353—Frequency, e.g. frequency shift or compression
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Alarm Systems (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Toys (AREA)
  • Selective Calling Equipment (AREA)
SE7909920A 1979-11-30 1979-11-30 Frekvensanpassad signalanordning for horselskadade SE419280B (sv)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE7909920A SE419280B (sv) 1979-11-30 1979-11-30 Frekvensanpassad signalanordning for horselskadade
US06/211,338 US4631517A (en) 1979-11-30 1980-11-28 Frequency-matched signal device for persons with impaired hearing
JP16792980A JPS5694399A (en) 1979-11-30 1980-11-28 Signal for one who is poor of hearing
DK509880A DK509880A (da) 1979-11-30 1980-11-28 Frekvenstilpasset signalindretning til hoereskadede
EP80850181A EP0030219B1 (en) 1979-11-30 1980-11-28 A frequency-matched signal device for persons with impaired hearing
NO803614A NO147087C (no) 1979-11-30 1980-11-28 Frekvenstilpasset signalanordning for hoerselsskadede
DE8080850181T DE3068136D1 (en) 1979-11-30 1980-11-28 A frequency-matched signal device for persons with impaired hearing
FI803701A FI803701L (fi) 1979-11-30 1980-11-28 Frekvensanpassad signalanordning foer hoerselskadade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7909920A SE419280B (sv) 1979-11-30 1979-11-30 Frekvensanpassad signalanordning for horselskadade

Publications (2)

Publication Number Publication Date
SE7909920L SE7909920L (sv) 1981-05-31
SE419280B true SE419280B (sv) 1981-07-20

Family

ID=20339449

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7909920A SE419280B (sv) 1979-11-30 1979-11-30 Frekvensanpassad signalanordning for horselskadade

Country Status (8)

Country Link
US (1) US4631517A (no)
EP (1) EP0030219B1 (no)
JP (1) JPS5694399A (no)
DE (1) DE3068136D1 (no)
DK (1) DK509880A (no)
FI (1) FI803701L (no)
NO (1) NO147087C (no)
SE (1) SE419280B (no)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900003594B1 (ko) * 1985-01-07 1990-05-26 니홍덴소 가부시기 가이샤 경보음 발생장치
US5898363A (en) * 1997-03-05 1999-04-27 Safety Systems, Inc. Portable audible beacon
WO1998057761A1 (fr) * 1997-06-18 1998-12-23 Sanyo Electric Co., Ltd. Avertisseur
US7089176B2 (en) * 2003-03-27 2006-08-08 Motorola, Inc. Method and system for increasing audio perceptual tone alerts

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1389409A (fr) * 1962-07-25 1965-02-19 Procédé de correction auditive et appareils de correction auditive selon ce procédé
GB1341842A (en) * 1971-01-12 1973-12-25 Whetton Co Mfg Ltd A J Alarms
DE2261110C3 (de) * 1972-12-14 1978-07-27 Robert Bosch Gmbh, 7000 Stuttgart Schalteinrichtung für akustische Signalgeräte
GB1583759A (en) * 1976-10-07 1981-02-04 Mettoy Co Ltd Two-tone audible signal circuit

Also Published As

Publication number Publication date
SE7909920L (sv) 1981-05-31
FI803701L (fi) 1981-05-31
DK509880A (da) 1981-05-31
JPS5694399A (en) 1981-07-30
NO147087B (no) 1982-10-18
EP0030219A1 (en) 1981-06-10
DE3068136D1 (en) 1984-07-12
NO147087C (no) 1983-01-26
US4631517A (en) 1986-12-23
EP0030219B1 (en) 1984-06-06
NO803614L (no) 1981-06-01

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