公开(公告)号：DE10124965A1

公开(公告)日：2002-12-12

申请号：DE10124965

申请日：2001-05-21

Applicant: INFINEON TECHNOLOGIES AG

Inventor： ZOJER BERNHARD ,  BLECHSCHMIDT KLAUS

IPC: H04M3/00 ,  H04M3/18 ,  H04M19/00 ,  H02H3/20

Abstract: Method for supplying a circuit unit ( 201 ) which is to be supplied with different supply voltages, in which the circuit unit ( 201 ) to be supplied is protected against overvoltages, having the following steps: application of at least two supply voltages ( 203 a , 203 b) with respect to a ground potential ( 210 ) to the circuit unit ( 201 ) to be supplied; connection of signal connections ( 208, 209 ) of the circuit unit ( 201 ) to signal lines ( 206, 207 ) for transmission of signals between the circuit unit ( 201 ) and external circuit units; emission of a reference voltage ( 204 ) from a control connection ( 212 ) of the circuit unit ( 201 ) to an overvoltage protective device ( 205 ), in that a supply voltage ( 203 a , 203 b) is passed on to the control connection ( 212 ) by means of a switching module ( 211 ); and tripping of the overvoltage protective device ( 205 ) on detection of an overvoltage which occurs with respect to the reference voltage ( 204 ) on at least one of the two signal lines ( 206, 207 ).

公开(公告)号：DE50000422D1

公开(公告)日：2002-10-02

申请号：DE50000422

申请日：2000-02-01

Applicant: INFINEON TECHNOLOGIES AG

Inventor： ZOJER BERNHARD

IPC: H04B3/20 ,  H04B1/58 ,  H04L5/14 ,  H04M11/00 ,  H04Q3/42

Abstract: The invention relates to an SLIC circuit ( 1 ), which is connected directly to a telephone line ( 2 ), for joint transmission of voice and data via the telephone line ( 2 ), with adequate echo attenuation achieved even at high data frequencies in that a first current which corresponds to the sum of the transmission and received currents (Ia, Ib), and a second current (Id) which corresponds to the current produced by the transmission power level (Vtx) at the data frequency, are produced, and the difference between the first current and the second current (Id) is emitted.

公开(公告)号：DE10045722A1

公开(公告)日：2002-04-11

申请号：DE10045722

申请日：2000-09-15

Applicant: INFINEON TECHNOLOGIES AG

Inventor： WOLFF CHRISTIAN ,  DIELACHER FRANZ ,  ZOJER BERNHARD ,  ZOJER HERBERT ,  PREITNEGGER MANFRED

IPC: H04Q11/04 ,  H04M11/06 ,  H03H17/02 ,  H04L5/06

公开(公告)号：DE102006057579B4

公开(公告)日：2008-11-27

申请号：DE102006057579

申请日：2006-12-06

Applicant: INFINEON TECHNOLOGIES AG

Inventor： ZOJER BERNHARD ,  LINDER THOMAS

IPC: H04M3/18

Abstract: A method and a device for operating a transmission line are provided. The device includes a line driver circuit and a protective circuit. The line driver circuit converts an input signal of the device into a current or a voltage for the transmission line while the protective circuit prevents an overvoltage and/or an overcurrent on the transmission line. The line driver circuit and the protective circuit are integrated in a common package.

公开(公告)号：DE102006057579A1

公开(公告)日：2008-07-10

申请号：DE102006057579

申请日：2006-12-06

Applicant: INFINEON TECHNOLOGIES AG

Inventor： ZOJER BERNHARD ,  LINDER THOMAS

IPC: H04M3/18

Abstract: A method and a device for operating a transmission line are provided. The device includes a line driver circuit and a protective circuit. The line driver circuit converts an input signal of the device into a current or a voltage for the transmission line while the protective circuit prevents an overvoltage and/or an overcurrent on the transmission line. The line driver circuit and the protective circuit are integrated in a common package.

公开(公告)号：DE19636954B4

公开(公告)日：2005-08-18

申请号：DE19636954

申请日：1996-09-11

Applicant: INFINEON TECHNOLOGIES AG

Inventor： MOYAL MIKI ,  ZOJER HERBERT ,  ZOJER BERNHARD ,  DIELACHER FRANZ ,  RIEDLE ULRICH

IPC: H04M19/00 ,  H04M3/18 ,  H04L12/10 ,  H04Q3/24

Abstract: The subscriber circuit has a number of subscriber line interface circuits combined in a multi-way subscriber line interface circuit (1). The high energy components (30,31,36,37) of each interface circuit are provided as separate components, with feedback via the respective interface circuit. Pref. the high energy components of each interface circuit include an optical switch (36,37) and a transistor (30,31) connected in front of a diode (32,33), with the feedback of the individual components applied via an AC current path and a DC current path.

公开(公告)号：DE19933485B4

公开(公告)日：2004-05-13

申请号：DE19933485

申请日：1999-07-16

Applicant: INFINEON TECHNOLOGIES AG

Inventor： SCHRANZ CHRISTIAN ,  PESSL PETER ,  HAUPTMANN JOERG ,  SCHWINGSHACKL DAVID ,  ZOJER HERBERT ,  ZOJER BERNHARD

IPC: H04L27/00 ,  H04M11/06 ,  H04L5/02

公开(公告)号：DE102005019164B4

公开(公告)日：2007-01-11

申请号：DE102005019164

申请日：2005-04-25

Applicant: INFINEON TECHNOLOGIES AG

Inventor： LAGIOIA MARIA GIOVANNA ,  PICHLER JOACHIM ,  ZOJER BERNHARD

IPC: H04M19/00 ,  G01R23/02 ,  H03B1/00 ,  H04B3/04 ,  H04M19/02

Abstract: The present invention relates to a ring voltage generation circuit for generating a ring voltage (VTR) between a TIP lead ( 9 ) and a RING lead ( 10 ) with minimized power loss for electronic subscriber circuits, comprising: a) an amplifier circuit ( 2 ) which receives an input voltage (VI) for amplifying the input voltage (VI) to provide the ring voltage (VTR); b) an absolute value generator ( 3 ) which receives the input voltage (VI), measures an absolute value (|VI|) of the input voltage (VI) and outputs the measured absolute value (|VI|) of the input voltage (VI); c) a DC/DC converter ( 4 ) which receives the measured absolute value (|VI|) of the input voltage (VI) and converts the measured absolute value (|VI|) of the input voltage (VI) into a supply voltage (VSUPPLY) for the amplifier circuit ( 2 ); and d) a common mode feedback device ( 5 ) which receives the supply voltage (VSUPPLY), a TIP potential (VT) of the TIP lead ( 9 ) and a RING potential (VR) of the RING lead ( 10 ) and which generates thereof a control voltage (VC), whereas the common mode feedback device ( 5 ) controls the amplifier circuit ( 2 ) by means of the control voltage (VC)

公开(公告)号：DE102005019164A1

公开(公告)日：2005-11-24

申请号：DE102005019164

申请日：2005-04-25

Applicant: INFINEON TECHNOLOGIES AG

Inventor： LAGIOIA MARIA GIOVANNA ,  PICHLER JOACHIM ,  ZOJER BERNHARD

IPC: G01R23/02 ,  H03B1/00 ,  H04B3/04 ,  H04M19/00 ,  H04M19/02

Abstract: The present invention relates to a ring voltage generation circuit for generating a ring voltage (VTR) between a TIP lead ( 9 ) and a RING lead ( 10 ) with minimized power loss for electronic subscriber circuits, comprising: a) an amplifier circuit ( 2 ) which receives an input voltage (VI) for amplifying the input voltage (VI) to provide the ring voltage (VTR); b) an absolute value generator ( 3 ) which receives the input voltage (VI), measures an absolute value (|VI|) of the input voltage (VI) and outputs the measured absolute value (|VI|) of the input voltage (VI); c) a DC/DC converter ( 4 ) which receives the measured absolute value (|VI|) of the input voltage (VI) and converts the measured absolute value (|VI|) of the input voltage (VI) into a supply voltage (VSUPPLY) for the amplifier circuit ( 2 ); and d) a common mode feedback device ( 5 ) which receives the supply voltage (VSUPPLY), a TIP potential (VT) of the TIP lead ( 9 ) and a RING potential (VR) of the RING lead ( 10 ) and which generates thereof a control voltage (VC), whereas the common mode feedback device ( 5 ) controls the amplifier circuit ( 2 ) by means of the control voltage (VC)