NL7612973A - TRAFFIC ANNOUNCEMENT SYSTEM. - Google Patents

TRAFFIC ANNOUNCEMENT SYSTEM.

Info

Publication number
NL7612973A
NL7612973A NL7612973A NL7612973A NL7612973A NL 7612973 A NL7612973 A NL 7612973A NL 7612973 A NL7612973 A NL 7612973A NL 7612973 A NL7612973 A NL 7612973A NL 7612973 A NL7612973 A NL 7612973A
Authority
NL
Netherlands
Prior art keywords
traffic announcement
announcement system
traffic
announcement
Prior art date
Application number
NL7612973A
Other languages
Dutch (nl)
Original Assignee
Westfaelische Metall Industrie
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 Westfaelische Metall Industrie filed Critical Westfaelische Metall Industrie
Publication of NL7612973A publication Critical patent/NL7612973A/en

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
    • H04R27/00—Public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2227/00—Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups
    • H04R2227/009—Signal processing in [PA] systems to enhance the speech intelligibility

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Amplifiers (AREA)
NL7612973A 1975-12-09 1976-11-22 TRAFFIC ANNOUNCEMENT SYSTEM. NL7612973A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2555263A DE2555263B1 (en) 1975-12-09 1975-12-09 Traffic announcement system

Publications (1)

Publication Number Publication Date
NL7612973A true NL7612973A (en) 1977-06-13

Family

ID=5963861

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7612973A NL7612973A (en) 1975-12-09 1976-11-22 TRAFFIC ANNOUNCEMENT SYSTEM.

Country Status (4)

Country Link
BE (1) BE848316A (en)
DE (1) DE2555263B1 (en)
NL (1) NL7612973A (en)
SE (1) SE7613443L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2056110C (en) * 1991-03-27 1997-02-04 Arnold I. Klayman Public address intelligibility system
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system

Also Published As

Publication number Publication date
BE848316A (en) 1977-03-16
SE7613443L (en) 1977-06-10
DE2555263B1 (en) 1977-02-10

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Legal Events

Date Code Title Description
BV The patent application has lapsed