IT1017707B - Sistema di comunicazione sonora multiscopo - Google Patents

Sistema di comunicazione sonora multiscopo

Info

Publication number
IT1017707B
IT1017707B IT25707/74A IT2570774A IT1017707B IT 1017707 B IT1017707 B IT 1017707B IT 25707/74 A IT25707/74 A IT 25707/74A IT 2570774 A IT2570774 A IT 2570774A IT 1017707 B IT1017707 B IT 1017707B
Authority
IT
Italy
Prior art keywords
communication system
sound communication
purpose sound
sound
communication
Prior art date
Application number
IT25707/74A
Other languages
English (en)
Original Assignee
Itt
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 Itt filed Critical Itt
Application granted granted Critical
Publication of IT1017707B publication Critical patent/IT1017707B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • B06B1/0269—Driving circuits for generating signals continuous in time for generating multiple frequencies
    • B06B1/0284—Driving circuits for generating signals continuous in time for generating multiple frequencies with consecutive, i.e. sequential generation, e.g. with frequency sweep

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Amplifiers (AREA)
  • Circuits Of Receivers In General (AREA)
IT25707/74A 1973-08-02 1974-07-30 Sistema di comunicazione sonora multiscopo IT1017707B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US384889A US3882275A (en) 1973-08-02 1973-08-02 Sound communication system

Publications (1)

Publication Number Publication Date
IT1017707B true IT1017707B (it) 1977-08-10

Family

ID=23519174

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25707/74A IT1017707B (it) 1973-08-02 1974-07-30 Sistema di comunicazione sonora multiscopo

Country Status (6)

Country Link
US (1) US3882275A (it)
JP (1) JPS5051288A (it)
CA (1) CA1007989A (it)
DE (1) DE2436693A1 (it)
GB (1) GB1476125A (it)
IT (1) IT1017707B (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065767A (en) * 1976-09-01 1977-12-27 General Signal Corporation Programmable electronic siren
US4206448A (en) * 1977-12-19 1980-06-03 Davis Curtis H Multiple mode sound generator
US4204200A (en) * 1978-10-11 1980-05-20 Traintronics, Inc. Electronic horn arrangement
FR2552913A1 (fr) * 1983-09-29 1985-04-05 Guterman Charles Sirene electronique miniature programmable en sirene ou en parole
JPS60166895U (ja) * 1984-04-11 1985-11-06 パイオニア株式会社 車載用オ−デイオ装置
GB2164523B (en) * 1984-09-15 1988-07-06 Crystalate Electronics Electronic alarm sounder
US4736432A (en) * 1985-12-09 1988-04-05 Motorola Inc. Electronic siren audio notch filter for transmitters
US5317641A (en) * 1991-04-11 1994-05-31 Sony Electronics Inc. Fader depth control apparatus
AUPM282493A0 (en) * 1993-12-06 1994-01-06 Robert Bosch (Australia) Proprietary Ltd. A siren unit
IT238434Y1 (it) * 1997-11-26 2000-11-13 Meta System Spa Sirena elettronica multifunzione per mezzi mobili
US20010026623A1 (en) * 2000-10-17 2001-10-04 Erwin Duane A. Remote Broadcasting System
US20080272649A1 (en) * 2003-10-31 2008-11-06 Johnson Controls Technology Company Electrical connectivity system for use in a vehicle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2396422A (en) * 1942-04-30 1946-03-12 Westinghouse Air Brake Co Air raid warning system
US2358630A (en) * 1943-04-21 1944-09-19 Gen Electric Amplification system
US3051944A (en) * 1958-08-25 1962-08-28 Auto Electronics Inc Electronic siren and communication apparatus
US3014199A (en) * 1960-04-11 1961-12-19 Leslie G Dill Siren actuated warning device for automobiles
US3130396A (en) * 1961-09-06 1964-04-21 Hughes Automatic civil emergency warning system
JPS436523Y1 (it) * 1964-12-10 1968-03-23
JPS4312352Y1 (it) * 1965-02-12 1968-05-28
JPS4316007Y1 (it) * 1967-08-16 1968-07-04

Also Published As

Publication number Publication date
CA1007989A (en) 1977-04-05
JPS5051288A (it) 1975-05-08
DE2436693A1 (de) 1975-02-13
US3882275A (en) 1975-05-06
GB1476125A (en) 1977-06-10

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