EP0239914A3 - Mit einem harmonischen Klang mit vielfach regulierbarer Lautstärke versehenes elektronisches Lautsprechersystem - Google Patents
Mit einem harmonischen Klang mit vielfach regulierbarer Lautstärke versehenes elektronisches Lautsprechersystem Download PDFInfo
- Publication number
- EP0239914A3 EP0239914A3 EP19870104319 EP87104319A EP0239914A3 EP 0239914 A3 EP0239914 A3 EP 0239914A3 EP 19870104319 EP19870104319 EP 19870104319 EP 87104319 A EP87104319 A EP 87104319A EP 0239914 A3 EP0239914 A3 EP 0239914A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- sound
- sound levels
- loudspeaker
- adjustable sound
- multiple adjustable
- 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- Withdrawn
Links
Classifications
-
- 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)
- Circuit For Audible Band Transducer (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN198686201730U CN86201730U (zh) | 1986-03-25 | 1986-03-25 | 一种多声级有和声乐感的电子喇叭 |
CN86201730 | 1986-03-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0239914A2 EP0239914A2 (de) | 1987-10-07 |
EP0239914A3 true EP0239914A3 (de) | 1990-10-10 |
Family
ID=4805428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19870104319 Withdrawn EP0239914A3 (de) | 1986-03-25 | 1987-03-24 | Mit einem harmonischen Klang mit vielfach regulierbarer Lautstärke versehenes elektronisches Lautsprechersystem |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0239914A3 (de) |
JP (1) | JPS62272700A (de) |
CN (1) | CN86201730U (de) |
BR (1) | BR8701340A (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU679145B2 (en) * | 1995-09-11 | 1997-06-19 | Sportzwhistle Pty Ltd | Electronic whistle |
EP1037501B1 (de) * | 1997-10-23 | 2009-01-21 | Panasonic Corporation | Beschallungsanlage |
CN104077862A (zh) * | 2013-03-29 | 2014-10-01 | 北京谊安医疗系统股份有限公司 | 一种医用报警电路装置和方法 |
JP2020177154A (ja) * | 2019-04-18 | 2020-10-29 | 和宏 長南 | 車両間ならびに/または車両および人間の間のコミュニケーションシステムおよびコミュニケーション方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4183278A (en) * | 1977-10-17 | 1980-01-15 | Lectron Products, Inc. | Driver circuit for tone generator |
US4284845A (en) * | 1979-07-30 | 1981-08-18 | Belcher Claude A | Pest eliminator |
US4290053A (en) * | 1978-02-22 | 1981-09-15 | Kuniichi Nemoto | Sound effects producer |
US4437088A (en) * | 1981-11-19 | 1984-03-13 | General Signal Corporation | Electrical simulation of percussive bell |
-
1986
- 1986-03-25 CN CN198686201730U patent/CN86201730U/zh not_active Withdrawn
-
1987
- 1987-03-24 EP EP19870104319 patent/EP0239914A3/de not_active Withdrawn
- 1987-03-24 BR BR8701340A patent/BR8701340A/pt unknown
- 1987-03-25 JP JP6926187A patent/JPS62272700A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4183278A (en) * | 1977-10-17 | 1980-01-15 | Lectron Products, Inc. | Driver circuit for tone generator |
US4290053A (en) * | 1978-02-22 | 1981-09-15 | Kuniichi Nemoto | Sound effects producer |
US4284845A (en) * | 1979-07-30 | 1981-08-18 | Belcher Claude A | Pest eliminator |
US4437088A (en) * | 1981-11-19 | 1984-03-13 | General Signal Corporation | Electrical simulation of percussive bell |
Also Published As
Publication number | Publication date |
---|---|
BR8701340A (pt) | 1987-12-29 |
JPS62272700A (ja) | 1987-11-26 |
CN86201730U (zh) | 1987-01-21 |
EP0239914A2 (de) | 1987-10-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB IT |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB IT |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19910411 |