• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    KONTROLYAPEREGOVOROV APPARATUS FOR SUBSCRIBER SYSTEM WITH SEAL VREMENNM comprising ansformator Tr, the primary winding is connected to the controlling device, and the midpoint of the secondary transformer .obmotki balanced circuit is connected through a common bus, as well as modulator and demodulator lane vy and second amplifiers the input of the first amplifier is connected to the first output of the secondary winding of the transformer, and the output of the first amplifier is connected to the input of the modulator, characterized in that, in order to ensure control without subscriber talk times, the first and second capacitors are a differential amplifier, a low-pass filter and the first, second, third and fourth resistors connected in series, the second terminal of the first resistor is connected to the second terminal of the secondary winding of the transformer, the first terminal of the first resistor is connected to the output of the second amplifier, whose direct input through a low-pass filter is connected to the output of a differential amplifier, whose direct input is connected. with the output of the demodulator and connected to the first output of the first capacitor, while the second output of the second resistor is connected to the inverse of the second amplifier, and the second output of the quarter-resistor is connected to the common bus, the input of the modulator is connected to the first output of the second capacitor, the second output of which connected to the second output of the first capacitor and connected to the common bus, and parallel to the balanced circuit and the fourth resistor, the first and second make contacts, respectively, are connected.
    公开号:SU1122244A3
    申请号:SU752100551
    申请日:1975-01-24
    公开日:1984-10-30
    发明作者:Пиканде Жан
    申请人:Жемон-Шнейдер (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to telephony in particular. to devices of connection and control of negotiations in systems with temporary seal of channels. It is known a device for controlling negotiators, in a system with temporal compression, containing a transformer, the primary winding of which is connected to the control device, and the middle point of the secondary winding of the transformer is connected via a balanced circuit with a common bus, as well as a modulator, demodulator and first and second amplifiers ; the input of the first amplifier is connected to the first output of the secondary winding of the transformer, and the code of the first amplifier is connected to the input of the modulator, however, the known device does not provide control without disturbing the conversation of subscribers. In addition, it has a complex scheme. The purpose of the invention is to provide control without disturbing the conversation of abonents. The goal is achieved by the fact that the device includes a transformer, the primary winding of which is connected to the control device, and the middle point of the secondary winding of the transformer is connected via a balanced circuit to the common bus, as well as a modulator, demodulator, and the first and second amplifiers. The input of the first amplifier is connected to the first output of the transformer's secondary winding, and the output of the first amplifier is connected to the input of the modulator, the first and second capacitors are introduced, the differential amplifier , low pass filter and serially connected first, second, third and fourth resistors, with the second output of the first resistor connected to the second output of the transformer secondary winding, the first output of the first resistor connected to the output of the second amplifier, the direct input of which is connected through the low pass filter to the output of the differential an amplifier whose direct input is connected to the output of the demodulator and connected to the first terminal of the first capacitor, while the second terminal of the second resistor is connected to the inverse input to The second amplifier and the second terminal of the fourth resistor 1 42 are connected to the common bus, the modulator input is connected to the first terminal of the second capacitor, the second terminal of which is connected to the second terminal of the first capacitor and connected to the common bus, and parallel to the balanced circuit and the fourth resistor are connected respectively first and second make contacts. The drawing shows a structural electrical circuit diagram of a device for controlling the negotiation of subscribers in a system with a temporary seal. The device dd of monitoring the subscribers' negotiations in the system with a temporary seal contains a transformer I, a monitoring device 2, a balanced circuit 3, a modulator 4, a demodulator 5, the first and second amplifiers 6 and 7, the first, second, third and fourth resistors 8, 9, 10 and 11, the first and second capacitors 12 and 13, the low-pass filter 14, the differential amplifier 15, the first and second closing contacts 16 and 17. The device for controlling the conversations of subscribers in the system with a temporary seal works as follows. When the telephonist speaks, the conversation signals through the inlet transformer 1, h; from the second amplifier 7. The amplified signals are sent to the second capacitor 13, which serves as a buffer during the operation of the modulator 4. The signal from the subscriber comes in the form of pulses modulated in frequency to the demodulator 5, which charges the first capacitor 12 to the maximum value of the pulses. The differential amplifier 15 supplies signals to a filter 14, from which a signal is fed to a first amplifier 6, the gain factor of which is established by the second, third and fourth resistors 9, 10 and 11, which are included in its feedback circuits. The signal is then transmitted through the transs |) Ormator I to the first telephonist. Signals are not transmitted back to the subscriber, since the first closing contact 16 is open and balanced circuit 3 separates the transmit and receive channels. In addition, during a conversation with two telephone subscribers, a telephonist may enter into a conversation as a third party, not
    violation of subscribers' calls, which is ensured by choosing the moments of operation of the modulator 4 and demodulator 5.
    The filter 14 performs signal mixing, and the first amplifier 6 receives signals with different levels.
    Dp signal recovery is required to close the second closing contact 17, which changes the feedback ratio. First closing
    contact 16, closed simultaneously with the second end of contact 17, eliminates the effect of the balanced circuit 3, while the modulator 4 receives the sum of the signals of the subscribers AND, the telephone operators who, after conversion, enter the line.
    The proposed device allows, with a minimum amount of equipment, control of negotiations.
    权利要求:
    Claims (1)
    [1]
    DEVICE FOR MONITORING SUBSCRIBERS IN TEMPORARY SEALING SYSTEM, comprising a transformer, the primary winding of which is connected to the control device, and the middle point of the secondary winding of the transformer is connected through a balanced circuit to a common bus, as well as a modulator, demodulator and first and second amplifiers, the input of the first and second amplifiers the amplifier is connected to the first output of the secondary winding of the transformer, and the output of the first amplifier is connected to the input of the modulator, characterized in that, in order to provide control without any problems conversation, the first and second capacitors ^ differential amplifier, a low-pass filter and series-connected first, second, third and fourth resistors are introduced, the second terminal of the first resistor connected to the second terminal of the secondary winding of the transformer, the first terminal of the first resistor connected to the output second 'amplifier, the direct input of which is connected through the low-pass filter to the output of the differential amplifier, the direct input of which is connected to the output of the demodulator and connected to the first output at the first capacitor, while the second terminal of the second resistor is connected to the inverse input of the second amplifier, and the second terminal of the 'fourth' resistor is connected to a common bus, and the modulator input is connected to the first terminal of the second capacitor, the second terminal of which is connected to the second terminal of the first capacitor and connected to the common bus, and parallel to the balanced circuit and the fourth resistor, respectively, the first and second make contacts are connected.
    As
    1 1122244 2
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    同族专利:
    公开号 | 公开日
    DE2502719A1|1975-08-14|
    BR7500460A|1975-11-04|
    SE7500770L|1975-07-28|
    NL185437C|1990-04-02|
    US3976841A|1976-08-24|
    NL185437B|1989-11-01|
    DD118215A5|1976-02-12|
    AR206804A1|1976-08-23|
    LU71704A1|1975-06-24|
    AU7752975A|1976-07-22|
    ES434065A1|1976-12-16|
    CH600710A5|1978-06-30|
    CA1044789A|1978-12-19|
    HK59978A|1978-10-20|
    ATA38075A|1977-06-15|
    GB1499725A|1978-02-01|
    ZA75400B|1976-01-28|
    JPS50115705A|1975-09-10|
    JPS598977B2|1984-02-28|
    DE2502719C3|1978-12-07|
    AT341589B|1978-02-10|
    FR2259498B1|1978-06-02|
    NL7500670A|1975-07-29|
    FR2259498A1|1975-08-22|
    DE2502719B2|1978-04-20|
    IT1026431B|1978-09-20|
    SE406849B|1979-02-26|
    BE824673A|1975-05-15|
    OA04887A|1980-10-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3435150A|1965-12-03|1969-03-25|Bell Telephone Labor Inc|Private branch exchange system having data transmission lines and means for preventing application of tones thereto|
    US3769461A|1972-08-03|1973-10-30|Bell Telephone Labor Inc|Time division switching system bridging circuit|
    US3828146A|1973-03-22|1974-08-06|Bell Telephone Labor Inc|Time division conference hybrid circuit|DE2837849C2|1978-08-30|1985-04-04|Siemens AG, 1000 Berlin und 8000 München|Method for intruding a call to a subscriber station currently receiving an incoming call stream in a centrally controlled telephone exchange, in particular telephone branch exchange|
    JPS5923667B2|1978-09-08|1984-06-04|Kokusai Denshin Denwa Co Ltd|
    DE2907169C2|1979-02-23|1985-09-05|Siemens AG, 1000 Berlin und 8000 München|Circuit arrangement for telephone and telephone extension systems with evaluation of special identifiers arriving from a counterpart system |
    DE2907194C2|1979-02-23|1985-08-22|Siemens AG, 1000 Berlin und 8000 München|Circuit arrangement for telephone and telephone extension systems with evaluation of special identifiers arriving from a counterpart system |
    US4317960A|1979-03-23|1982-03-02|Small World Exchange, Inc.|Telephone-conferencing and inquiry-handling apparatus and method|
    WO1980002095A1|1979-03-23|1980-10-02|Small World Exchange Inc|Telephone-conferencing apparatus and method|
    US4317007A|1979-03-23|1982-02-23|Small World Exchange, Inc.|Telephone-conferencing method and apparatus with monitor-only access|
    US4317961A|1979-03-23|1982-03-02|Small World Exchange, Inc.|Telephone-conferencing apparatus and method|
    US4399532A|1981-08-12|1983-08-16|Western Electric Company, Inc.|Methods of and systems for monitoring a first call connection while effecting the establishment of a second call connection|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7402478A|FR2259498B1|1974-01-25|1974-01-25|
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