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    SUBSTRATE INSULATION DEVICE
    1.
    发明专利
    SUBSTRATE INSULATION DEVICE 失效

    公开(公告)号：JPH065792A

    公开(公告)日：1994-01-14

    申请号：JP2566293

    申请日：1993-02-15

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CONSIGLIO PIETRO ,  ERRATICO PIETRO

    IPC: H01L27/08 ,  H01L27/02

    Abstract: PURPOSE: To maintain a required function, even when a voltage lower than a reference voltage of a substrate is applied to a circuit. CONSTITUTION: This substrate insulating device comprises a power source terminal connected to a terminal 106 of a functional integrated element 100. The element 100 has at least one junction reversely biased, with respect to the substrate 104 specified with the element 100 thereon.

    TELEPHONE SUBSCRIBER DEVICE
    3.
    发明专利
    TELEPHONE SUBSCRIBER DEVICE 失效

    公开(公告)号：JPH06303290A

    公开(公告)日：1994-10-28

    申请号：JP33163093

    申请日：1993-12-27

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CONSIGLIO PIETRO ,  ANTONINI CARLO ,  VANALLI GIANPIETRO

    IPC: H04M1/00 ,  H04M1/60 ,  H04M1/738

    Abstract: PURPOSE: To provide a device having a monolithically integrated line switch by providing a circuit interface which drives a pair of switches and providing the circuit interface with a unidirectional current pass circuit element which controls a driving current generated internally. CONSTITUTION: An input terminal E for application of an external electric signal related to a circuit node G and a circuit interface means CI which has output terminals to drive switches SW2 and SW3 through an actuator circuit ACT are provided. In the circuit interface CI, a unidirectional current circuit element like a diode D1 is connected in parallel with the switch SW3 between a terminal 36 of a bridge circuit PP and a circuit node G. That is, the switch SW3 can be operated by the diode D1 provided between the bridge circuit PP and a substrate. Consequently, the driving current generated in the circuit interface means CI by the external electric signal goes to the substrate through the diode in any polarity state.

    ACOUSTIC-FEEDBACK SUPPRESSING DEVICE FOR AUXILIARY RINGER OF PLUG-IN TELEPHONE SYSTEM
    4.
    发明专利
    ACOUSTIC-FEEDBACK SUPPRESSING DEVICE FOR AUXILIARY RINGER OF PLUG-IN TELEPHONE SYSTEM 失效

    公开(公告)号：JPH066439A

    公开(公告)日：1994-01-14

    申请号：JP2550293

    申请日：1993-02-15

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CONSIGLIO PIETRO ,  ANTONINI CARLO

    IPC: H04M1/31 ,  H04M1/74 ,  H04M19/04

    Abstract: PURPOSE: To obtain a restraining device for controlling a voltage taken in a supplemented ringer and limiting a pseudo driving pulse by providing a circuit using rectifying bridges and diodes. CONSTITUTION: A 1st rectifying bridge 10 and a 2nd rectifying bridge 11 are disposed between the input terminals 12 and 13 of a telephone set. An auxiliary ringer 33 is power-supplied via a 1st terminal 29 and the 2nd terminal 13. The cathode terminal of the diodes 17 and 18 are connected to the both ends of the 1st diagonal line of the 2nd rectifying bridge 11. A capacitor 28 operates as the dc separator of a ringer 14. When a call is performed, that is, when a transmitter/receiver unhooked, switches 20, 24 and 31 are closed and a switch 26 is opened, so that a voltage set by a speaking circuit 25 appears in terminals 12 and 13. When in calling, the power supply terminals 29 and 13 to the added ringer 33 are AC-limited by the presence of a Zener diode 21.

    5.
    发明专利
    未知

    公开(公告)号：DE69935961D1

    公开(公告)日：2007-06-14

    申请号：DE69935961

    申请日：1999-12-30

    Applicant: ST MICROELECTRONICS SRL

    Inventor： ROSSI WALTER ,  LARI FERDINANDO ,  ANTONINI CARLO ,  CONSIGLIO PIETRO ,  VERGANI LUIGI

    IPC: H04M19/02

    Abstract: A subscriber's telephone system is presented that includes at least one driver circuit connected to Tip and Ring terminals. An additional network is connected between an output of the driver circuit and the Ring terminal. This additional network includes a suitably dimensioned capacitor and a diode limiter connected in parallel with each other to minimize the overall voltage while maintaining a desired battery mean value.

    6.
    发明专利
    未知

    公开(公告)号：DE69324621T2

    公开(公告)日：1999-12-09

    申请号：DE69324621

    申请日：1993-02-12

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CONSIGLIO PIETRO ,  ERRATICO PIETRO

    IPC: H01L27/08 ,  H01L27/02

    Abstract: A substrate insulation device includes power supply terminals which are connected to a terminal (106) of an active integrated element (100) which has, with respect to a substrate (104) on which it is defined, at least one reverse-biased junction (103).

    7.
    发明专利
    未知

    公开(公告)号：DE69324621D1

    公开(公告)日：1999-06-02

    申请号：DE69324621

    申请日：1993-02-12

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CONSIGLIO PIETRO ,  ERRATICO PIETRO

    IPC: H01L27/08 ,  H01L27/02

    Abstract: A substrate insulation device includes power supply terminals which are connected to a terminal (106) of an active integrated element (100) which has, with respect to a substrate (104) on which it is defined, at least one reverse-biased junction (103).

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