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BR9802978A - System for distributing ambient sound and warning voice over telephone extension lines. - Google Patents

System for distributing ambient sound and warning voice over telephone extension lines.

Info

Publication number
BR9802978A
BR9802978A BR9802978A BR9802978A BR9802978A BR 9802978 A BR9802978 A BR 9802978A BR 9802978 A BR9802978 A BR 9802978A BR 9802978 A BR9802978 A BR 9802978A BR 9802978 A BR9802978 A BR 9802978A
Authority
BR
Brazil
Prior art keywords
ambient sound
warning voice
extension lines
voice over
telephone extension
Prior art date
Application number
BR9802978A
Other languages
Portuguese (pt)
Inventor
Joao Martinho Costa
Original Assignee
Solucoees Operacionais Ind Com
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 Solucoees Operacionais Ind Com filed Critical Solucoees Operacionais Ind Com
Priority to BR9802978A priority Critical patent/BR9802978A/en
Priority to PCT/BR1999/000022 priority patent/WO1999051010A1/en
Publication of BR9802978A publication Critical patent/BR9802978A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42314—Systems providing special services or facilities to subscribers in private branch exchanges
    • 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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/487—Arrangements for providing information services, e.g. recorded voice services or time announcements
    • H04M3/493—Interactive information services, e.g. directory enquiries ; Arrangements therefor, e.g. interactive voice response [IVR] systems or voice portals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

Patente de invenção do <B>"Sistema de Distribuição de Som ambiente e Voz de Aviso Pelas Linhas de Ramais Telefônicos"<D>, que caracterizado por compreender uma unidade chamada BASE (2) que é conectada em entre o PABX (1) e as linhas de ramais telefônicos, que injeta uma portadora modulada em freqüência nas linhas de ramal sendo que esa portadora contém sinal de som ambiente ou sinal de voz de aviso dependendo da opção selecionada, e por possuir uma unidade chamada STATION (3) que é colocada em série entre a linha de ramal e o aparelho telefônico, que recebe a portadora modulada injetada pela BASE (2), demodula e recupera o sinal de som ambiente ou sinal de voz de aviso, amplifica-o, convrte-o em som através de um transdutor de som, e permite controle de volume independente para voz de aviso e som ambiente.Patent for the invention of the <B> "Ambient Sound Distribution System and Warning Voice over Telephone Extension Lines" <D>, which is characterized by comprising a unit called BASE (2) that is connected between the PABX (1) and the telephone extension lines, which inject a frequency-modulated carrier into the extension lines, and this carrier contains an ambient sound signal or warning voice signal depending on the option selected, and because it has a unit called STATION (3) that is placed in series between the extension line and the telephone set, which receives the modulated carrier injected by BASE (2), demodulates and recovers the ambient sound signal or warning voice signal, amplifies it, converts it into sound through a sound transducer, and allows independent volume control for warning voice and ambient sound.

BR9802978A 1998-03-30 1998-03-30 System for distributing ambient sound and warning voice over telephone extension lines. BR9802978A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR9802978A BR9802978A (en) 1998-03-30 1998-03-30 System for distributing ambient sound and warning voice over telephone extension lines.
PCT/BR1999/000022 WO1999051010A1 (en) 1998-03-30 1999-03-30 Distributing environmental sound/paging via telephone extensions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR9802978A BR9802978A (en) 1998-03-30 1998-03-30 System for distributing ambient sound and warning voice over telephone extension lines.

Publications (1)

Publication Number Publication Date
BR9802978A true BR9802978A (en) 2000-03-28

Family

ID=4070244

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9802978A BR9802978A (en) 1998-03-30 1998-03-30 System for distributing ambient sound and warning voice over telephone extension lines.

Country Status (2)

Country Link
BR (1) BR9802978A (en)
WO (1) WO1999051010A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100999450B1 (en) 2008-10-24 2010-12-09 한국전자통신연구원 The apparatus for preventing the leakage of a small signal of the speaker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1450893A (en) * 1972-10-26 1976-09-29 Television Res Ltd Sound distribution systems
GB2146509B (en) * 1983-09-10 1986-08-13 Stc Plc Data transmission system
US5131048A (en) * 1991-01-09 1992-07-14 Square D Company Audio distribution system

Also Published As

Publication number Publication date
WO1999051010A1 (en) 1999-10-07

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Legal Events

Date Code Title Description
B08F Application fees: dismissal - article 86 of industrial property law

Free format text: REFERENTE A 3A, 4A, 5A, 6A, 7A E 8A ANUIDADES.

B08K Maintenance of archiving: application remains archived as no request for restauration (art. 87) has been received.

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1861 DE 05/09/2006.