BR9706878A - Monitor de luz ambiente e de proximidade. - Google Patents

Monitor de luz ambiente e de proximidade.

Info

Publication number
BR9706878A
BR9706878A BR9706878-0A BR9706878A BR9706878A BR 9706878 A BR9706878 A BR 9706878A BR 9706878 A BR9706878 A BR 9706878A BR 9706878 A BR9706878 A BR 9706878A
Authority
BR
Brazil
Prior art keywords
light
ambient light
signal
proximity
ambient
Prior art date
Application number
BR9706878-0A
Other languages
English (en)
Inventor
Ross George Kouhi
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of BR9706878A publication Critical patent/BR9706878A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041—Portable telephones adapted for handsfree use
    • H04M1/605—Portable telephones adapted for handsfree use involving control of the receiver volume to provide a dual operational mode at close or far distance from the user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Electronic Switches (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

<B>"MONITOR DE LUZ AMBIENTE E DE PROXIMIDADE"<D>. é propiciado um monitor de luz ambiente e de proximidade (PALM), compreendendo uma fonte de luz para gerar um sinal óptico composto, um detector de luz para propiciar um sinal detectado, um círculo para separar o componente ca do sinal detectado, e um comutador para propiciar um sinal de controle quando o componente ca está fora de uma faixa pré-estabelecida. O PALM compreende ainda um detector de luz ambiente que também recebe o sinal detectado e propicia um sinal de nível de luz ambiente. O circuito de detecção de luz ambiente rejeita os sinais que estão relacionados com a monitoração de proximidade e propicia ganho suficiente para atravessar uma lente de filtração de luz natural que existe normalmente nos detectores de luz. O circuito de monitoração de luz ambiente propicia ou uma tensão que varia continuamente proporcional à luz ambiente, ou um sinal binário simples indicando que a luz está acima de um limiar.
BR9706878-0A 1996-10-17 1997-10-09 Monitor de luz ambiente e de proximidade. BR9706878A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/730,831 US5684294A (en) 1996-10-17 1996-10-17 Proximity and ambient light monitor
PCT/CA1997/000753 WO1998018205A1 (en) 1996-10-17 1997-10-09 Proximity and ambient light monitor

Publications (1)

Publication Number Publication Date
BR9706878A true BR9706878A (pt) 2000-01-25

Family

ID=24936989

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9706878-0A BR9706878A (pt) 1996-10-17 1997-10-09 Monitor de luz ambiente e de proximidade.

Country Status (7)

Country Link
US (1) US5684294A (pt)
EP (1) EP0886920B1 (pt)
JP (1) JP3177253B2 (pt)
BR (1) BR9706878A (pt)
CA (1) CA2233044C (pt)
DE (1) DE69711026T2 (pt)
WO (1) WO1998018205A1 (pt)

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Also Published As

Publication number Publication date
EP0886920B1 (en) 2002-03-13
JPH11506544A (ja) 1999-06-08
CA2233044A1 (en) 1998-04-30
CA2233044C (en) 2000-09-19
DE69711026T2 (de) 2002-11-28
EP0886920A1 (en) 1998-12-30
WO1998018205A1 (en) 1998-04-30
JP3177253B2 (ja) 2001-06-18
US5684294A (en) 1997-11-04
DE69711026D1 (de) 2002-04-18

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 8A E 9A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1903 DE 26/06/2007.