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    DEVICE FOR RECEIVING DATA FROM TELEPHONE LINE
    2.
    发明专利
    DEVICE FOR RECEIVING DATA FROM TELEPHONE LINE 失效

    公开(公告)号：JPH11298592A

    公开(公告)日：1999-10-29

    申请号：JP4704699

    申请日：1999-02-24

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： HOLLENBACH KEITH EUGENE ,  LATURELL DONALD R ,  WITMER STEVEN BROOKE

    IPC: H03M3/02 ,  H04M1/57

    Abstract: PROBLEM TO BE SOLVED: To process call related information on the high voltage side of a telephone circuit inside a digital signal path by digitizing an analog signal from a telephone line while using the sigma/delta(Σ/Δ) or analog/digital(A/D) converter of low-power CODEC, to which power is supplied from a line, filtering and decoding digitized data. SOLUTION: A audio CODEC 104 is a Δ/Σ audio CODEC capable of operating in a reduced power mode for operating a Σ/Δor A/D converter 140 of switchable dimension number while using power extracted from a telephone line. By arranging the audio CODEC 104 capable of digitally processing and demodulating the call related information on the side of the line, costs for the reception circuit of the call related information (caller ID) can be reduced and the call related information can be received while using power from the line side.

    6.
    发明专利
    未知

    公开(公告)号：DE60037230D1

    公开(公告)日：2008-01-10

    申请号：DE60037230

    申请日：2000-10-03

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： FISCHER JONATHAN HERMAN ,  HOLLENBACH KEITH EUGENE ,  LATURELL DONALD RAYMOND ,  SMITH LANE A ,  TOTH MICHAEL S ,  ZHU WEILIN

    IPC: H02J7/00 ,  H04M3/00 ,  H04M1/00 ,  H04M11/00 ,  H04M19/00 ,  H04M19/08

    Abstract: A line powered data access arrangement (DAA) is disclosed which adaptively allows proper operation with power supplied from a telephone line as conditions warrant, while at the same time satisfying the relevant requirements of many countries. In the line powered codec, a startup procedure for the international line powered codec uses register settings, e.g., country-specific register settings, which are powered and maintained from the low voltage side (e.g., from the PC or modem side) of the line powered codec. In this way, even during low line power conditions the programmed state of the line powered codec can be maintained, thus a default condition will not necessarily returned to by the line powered codec upon reset due to a power loss in the telephone line. In another aspect, a charge storage device such as a charge capacitor is charged from a charge pump formed from a differential clock signal from the low voltage side. A current and voltage detection module in the line powered codec is always powered from the telephone line. Upon detection of an off-hook signal or a power down condition, the current detection module determines if/when the current and voltage on the telephone line is sufficient to power certain circuits on the line powered codec. If sufficient power is not present, the line powered codec does not power up. However, the line powered codec will power up if sufficient current is detected. In another aspect, a plurality of power rails may be provided. A first power rail may be associated with the line power, a second power rail may be associated with a low voltage side power source, e.g., a charge storage device. A third (and other) power rails may be switchably connected to either the first power rail or second power rail as line power conditions and on-hook/off-hook conditions warrant.

    STARTUP PROCEDURE FOR INTERNATIONAL LINE POWERED DAA
    7.
    发明专利
    STARTUP PROCEDURE FOR INTERNATIONAL LINE POWERED DAA 未知

    公开(公告)号：CA2322252C

    公开(公告)日：2005-04-19

    申请号：CA2322252

    申请日：2000-10-04

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： LATURELL DONALD RAYMOND ,  FISCHER JONATHAN HERMAN ,  TOTH MICHAEL S ,  ZHU WEILIN ,  SMITH LANE A ,  HOLLENBACH KEITH EUGENE

    IPC: H02J7/00 ,  H04M1/00 ,  H04M11/00 ,  H04M19/00 ,  H04M19/08 ,  H04M11/06 ,  H04L29/12

    Abstract: A line powered data access arrangement (DAA) is disclosed which adaptive ly allows proper operation with power supplied from a telephone line as conditions warrant, while at the same time satisfying the relevant requirements of many countries. In the line powered codec, a startup procedure for the international line powered codec uses register settings, e.g., country-specific register settings, which are powered and maintained from the low voltage side (e.g., from the PC or modem side) of the line powered codec. In this way, even during low line power conditions the programmed state of the line powered codec can be maintained, thus a default condition will not necessarily returned to by the line powered codec upon reset due to a power loss in the telephone line. In another aspect, a charge storage devi ce such as a charge capacitor is charged from a charge pump formed from a differenti al clock signal from the low voltage side. A current and voltage detection module in the line powered codec is always powered from the telephone line. Upon detection of a n off-hook signal or a power down condition, the current detection module determines if/when the current and voltage on the telephone line is sufficient to power certain circuits on the line powered codec. If sufficient power is not present, the line powered codec does not power up. However, the line powered codec will power up if sufficient current is detected. In another aspect, a plurality of power rails may be provided. A first power rail may be associated with the line power, a second power rail may be associated with a low voltage side power source, e.g., a charge storage device. A third (and other) power rails may be switchably connected to either the firs t power rail or second power rail as line power conditions and on-hook/off-hook condition s warrant.

    STARTUP PROCEDURE FOR INTERNATIONAL LINE POWERED DAA
    8.
    发明专利
    STARTUP PROCEDURE FOR INTERNATIONAL LINE POWERED DAA 未知

    公开(公告)号：CA2322252A1

    公开(公告)日：2001-04-08

    申请号：CA2322252

    申请日：2000-10-04

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： HOLLENBACH KEITH EUGENE ,  SMITH LANE A ,  LATURELL DONALD RAYMOND ,  FISCHER JONATHAN HERMAN ,  TOTH MICHAEL S ,  ZHU WEILIN

    IPC: H02J7/00 ,  H04M1/00 ,  H04M11/00 ,  H04M19/00 ,  H04M19/08 ,  H04M11/06 ,  H04L29/12

    Abstract: A line powered data access arrangement (DAA) is disclosed which adaptive ly allows proper operation with power supplied from a telephone line as conditions warrant, while at the same time satisfying the relevant requirements of many countries. In the line powered codec, a startup procedure for the international line powered codec uses register settings, e.g., country-specific register settings, which are powered and maintained from the low voltage side (e.g., from the PC or modem side) of the line powered codec. In this way, even during low line power conditions the programmed state of the line powered codec can be maintained, thus a default condition will not necessarily returned to by the line powered codec upon reset due to a power loss in the telephone line. In another aspect, a charge storage devi ce such as a charge capacitor is charged from a charge pump formed from a differenti al clock signal from the low voltage side. A current and voltage detection module in the line powered codec is always powered from the telephone line. Upon detection of a n off-hook signal or a power down condition, the current detection module determines if/when the current and voltage on the telephone line is sufficient to power certain circuits on the line powered codec. If sufficient power is not present, the line powered codec does not power up. However, the line powered codec will power up if sufficient current is detected. In another aspect, a plurality of power rails may be provided. A first power rail may be associated with the line power, a second power rail may be associated with a low voltage side power source, e.g., a charge storage device. A third (and other) power rails may be switchably connected to either the firs t power rail or second power rail as line power conditions and on-hook/off-hook condition s warrant.

    9.
    发明专利
    未知

    公开(公告)号：DE60037230T2

    公开(公告)日：2008-10-09

    申请号：DE60037230

    申请日：2000-10-03

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： FISCHER JONATHAN HERMAN ,  HOLLENBACH KEITH EUGENE ,  LATURELL DONALD RAYMOND ,  SMITH LANE A ,  TOTH MICHAEL S ,  ZHU WEILIN

    IPC: H02J7/00 ,  H04M3/00 ,  H04M1/00 ,  H04M11/00 ,  H04M19/00 ,  H04M19/08

    Abstract: A line powered data access arrangement (DAA) is disclosed which adaptively allows proper operation with power supplied from a telephone line as conditions warrant, while at the same time satisfying the relevant requirements of many countries. In the line powered codec, a startup procedure for the international line powered codec uses register settings, e.g., country-specific register settings, which are powered and maintained from the low voltage side (e.g., from the PC or modem side) of the line powered codec. In this way, even during low line power conditions the programmed state of the line powered codec can be maintained, thus a default condition will not necessarily returned to by the line powered codec upon reset due to a power loss in the telephone line. In another aspect, a charge storage device such as a charge capacitor is charged from a charge pump formed from a differential clock signal from the low voltage side. A current and voltage detection module in the line powered codec is always powered from the telephone line. Upon detection of an off-hook signal or a power down condition, the current detection module determines if/when the current and voltage on the telephone line is sufficient to power certain circuits on the line powered codec. If sufficient power is not present, the line powered codec does not power up. However, the line powered codec will power up if sufficient current is detected. In another aspect, a plurality of power rails may be provided. A first power rail may be associated with the line power, a second power rail may be associated with a low voltage side power source, e.g., a charge storage device. A third (and other) power rails may be switchably connected to either the first power rail or second power rail as line power conditions and on-hook/off-hook conditions warrant.

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