• 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:
    Time multiplexed data transmission system in which P.C.M. data words (bytes) derived from speech signals of telephone component channels (telephone inputs) and P.C.M. signalling words derived from the signalling state of said telephone component channels (inputs) are respectively time multiplexed in data time slots and signalling time slots of a frame to form a composite multiplex channel or frame. The signalling time slots of successive frames form a multiframe format. In the intermediate stations inserted along the transmission path over which the resultant multiplex frame is transmitted, the input channel data and signalling states can be extracted or inserted. Each intermediate station comprises a device reconstituting (regenerating) the incident frame and a local frame time base, self driven and synchronized by the incident frame reconstituting device. The contents of incomng data time slots and signalling time slots are stored in a frame memory. Writing in this frame memory is controlled by the incident frame reconstituting device and reading out from the frame memory is controlled by the local frame time base, which also selectively controls the extraction or maintaining of the component inputs data from or in the resultant multiplex frame. The local frame time base directs the signalling words to a multiframe memory and a local multiframe time base driven by the local frame time base selectively controls the extraction or maintaining of the signalling words from or in the resultant multiplex frame.
    公开号:SU839454A3
    申请号:SU752306962
    申请日:1975-12-31
    公开日:1981-06-15
    发明作者:Ноель Барбье Ксавье
    申请人:Сосьете Аноним Де Телеком-Мюникасьон (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to communication technology and can be used in multi-channel data transmission systems with time division multiplexing.
    A known intermediate station of a multi-channel digital signal transmission system, combined into data words, time-divided channels forming multi-channel time frames combined into multi-frames, contains a frame recovery unit whose input is connected to the main terminal of the intermediate station to recover the input frame sync signals from the specified data words, moreover, the synchronization output of the frame recovery unit is connected to the clock input of the local clock sync signal generator, The addressing is connected to the write control input of the memory block Ks1Dra, the signal input of which is connected to the input of the recovery block. Frame, and the output address of the readout of the local frame clock generator is connected to the read control input of the frame memory, the first output of which is through the first And element that connected to the first control output of the local frame clock generator, connected to the first input of the output logic unit, to the second input of which the clock output of the clock signal generator is connected in the local frame, the output of the logic output unit is connected to the main output of the intermediate station, to the first auxiliary output of which through the second And element, which is connected to the second control output of the local clock signal generator, the second output of the frame memory is connected, and to the second auxiliary output the output of the first signal extraction word block is connected, the first auxiliary input of the intermediate station is connected to the third input of the output logic block, and with a glance the auxiliary The input is connected to the first input of the alarm word 1 input unit.
    A disadvantage of the known device is a significant increase in the memory capacity of the frame memory unit necessary for providing synchronization of the input and output digital signals.
    The purpose of the invention is to provide synchronization of the input and output digital signals of the intermediate station without increasing the memory capacity of the frame memory block,
    This goal is achieved by
    | What is to the intermediate station of a multi-channel digital signal transmission system j combined data words with time separation channel forming multi-channel time frames combined into multi-frames, which contains a recovery block and a frame whose input is connected to the main input of the intermediate station for recovery from specified data words the sync signals of the input frame, and in which the sync output of the frame recovery block under the key to the sync input of the sync signal generator of the local frame, The addressing output is connected to the memory control input of the Cad15a memory block, whose signal input is connected to the frame recovery block input, and the generator readout address output of the local frame is connected to the read memory control input of the frame memory block, the first output of which is connected through the first And element that is connected with the first control output of the clock signal generator of the local frame, connected to the first input of the output logic block, to the second input of which the clock output of the clock generator is connected local frame, wherein the output of the output logic unit is connected to the main output of the intermediate station, to the first auxiliary output of which through the second AND element, which is connected to the second control output of the local frame clock generator, the second output of the frame memory block is connected, and to the second the auxiliary output is connected to the output of the first signal extraction word block, the first auxiliary intermediate station is connected to the third input of the output logic block, and the second auxiliary input The d is connected to the first input of the alarm word injection unit,. a multi-frame recovery unit, a generator, a local pultifra sync signal, a multi-frame memory block, a second signal extraction word block, and a third AND element are entered, the third output of the frame memory block through the third AND element, which is connected to the third local sync signal generator control output the frame is connected to the input of the multi-frame memory block signaling words, to the recording control gate of which through the multi-frame recovery block
    The control output of the frame recovery unit is connected, and the read control address of the master multiframe clock is connected to the read control input, the fourth control output of the generator (local frame sync signals) is connected to the input of which is connected to the first input of the first multiframe an alarm word extraction block, to the second input of which the first output of the multi-frame memory block is connected, the second output of which is connected to the ne The second input of the second block of the alarm word is connected to the second input of the second control output of the local multiframe clock generator, the clock output of which is connected to the second input of the alarm word insertion block, the third input of which is connected to the output of the second alarm word separation block and the output connected to the fourth input of the output logic unit.
    权利要求:
    Claims (1)
    [1]
    1. Patent CLJA No. 3772475, class, 179/15, published 1973 (prototype).
    Y W 12 13
    类似技术:
    公开号 | 公开日 | 专利标题
    SU839454A3|1981-06-15|Intermediate station of multichannel digital transmitting system
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    US4658397A|1987-04-14|Time division multiplex data transfer system and method for telephone switching or like applications
    US3806879A|1974-04-23|Tdma satellite communication system with multi-pcm frames per tdma frame
    US3987248A|1976-10-19|Digital multiplexing system
    ES440696A1|1977-03-01|Data and signaling multiplexing in PCM systems via the framing code
    US4520479A|1985-05-28|Arrangement for re-arranging information for transmitting outgoing time-division multiplexed information obtained from incoming time-division multiplexed information
    US4105869A|1978-08-08|Time-division multiplex digital transmission system with intermediate stations adapted to transit insert and extract digital channels
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    US3868481A|1975-02-25|Trunk formatter
    GB1382324A|1975-01-29|Digital voice interpolation system for pcm systems
    GB1336542A|1973-11-07|System for tranferring information
    US4688233A|1987-08-18|Digital data transmitting device for communication paths of restricted and unrestricted transmission characteristics
    GB1161993A|1969-08-20|Improvements in or relating to PCM Systems
    ES404429A1|1975-06-01|Synchronizing unit
    US3227810A|1966-01-04|Electrical signalling systems
    GB1337143A|1973-11-14|Time division multiple access communication systesm
    CA1081816A|1980-07-15|Bidirectional digital information transmission systemusing a single two-wire line
    JPH07123247B2|1995-12-25|Digital data transmission method
    GB1246879A|1971-09-22|Improvements in or relating to digital signal multiplexing systems
    JPH088556B2|1996-01-29|Time division multiplexer
    KR910005629A|1991-03-30|Time switch device
    同族专利:
    公开号 | 公开日
    FR2296973A1|1976-07-30|
    DE2559217B2|1978-02-23|
    DE2559217A1|1976-07-08|
    FR2296973B1|1979-03-16|
    BR7502520A|1976-08-17|
    US4002846A|1977-01-11|
    DE2559217C3|1979-03-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3040130A|1958-12-24|1962-06-19|Itt|Repeater station for a bidirectional communication system|
    US3922493A|1971-02-01|1975-11-25|Gen Electric|Communication system using time-division multiplexing and pulse-code modulation|
    US3772475A|1972-08-28|1973-11-13|Communications Satellite Corp|Satellite communications system with super frame format and frame segmented signalling|IT1059489B|1976-04-22|1982-05-31|C S E L T Spa|SYSTEM FOR ADDING INFORMATION CHANNELS IN A MULTI-LEVEL NUMERIC TRANSMISSION|
    FR2373923B1|1976-12-10|1981-07-24|Telecommunications Sa|
    IT1151019B|1980-06-30|1986-12-17|Sits Soc It Telecom Siemens|TIMING CIRCUIT FOR RECEPTION OF PCM SIGNALS|
    DE3028075C2|1980-07-22|1983-05-05|Siemens AG, 1000 Berlin und 8000 München|Telephone system for digital switching systems with fading in and out of transmission channels from a channel system|
    US4450558A|1981-01-12|1984-05-22|General Datacomm Industries, Inc.|Method and apparatus for establishing frame synchronization|
    US4370648A|1981-03-31|1983-01-25|Siemens Corporation|Synchronizing circuit for use with a telecommunication system|
    US4468767A|1981-12-07|1984-08-28|Coastcom|Drop-and-insert multiplex digital communications system|
    FI64874C|1982-05-03|1984-01-10|Nokia Oy Ab|DIGITAL MULTIPLEXANORDNING|
    FR2526614A1|1982-05-05|1983-11-10|Trt Telecom Radio Electr|INFORMATION READING DEVICE FOR TRANSMITTING IN A TIME MULTIPLEX OUTGOING INFORMATION FROM AN INCOMING TIME MULTIPLEX|
    JPH0771097B2|1985-12-20|1995-07-31|株式会社日立製作所|Time division multiplex communication system|
    US4701913A|1986-06-11|1987-10-20|Northern Telecom Limited|Circuit and method for extracting signalling information embedded in channelized serial data streams|
    US4787084A|1987-02-26|1988-11-22|Amdahl Corporation|Frame code converter|
    US4819226A|1987-11-10|1989-04-04|Bell Communications Research, Inc.|Framer circuit for use in a DTDM network|
    CH680101A5|1989-12-19|1992-06-15|Alcatel Str Ag|
    JP3092850B2|1990-10-05|2000-09-25|株式会社リコー|Multiplexed data separation method|
    KR940012937A|1992-11-26|1994-06-24|정용문|Signaling channel data transmission / reception circuit of primary group multiplexer|
    FR2726958A1|1994-11-15|1996-05-15|Trt Telecom Radio Electr|RADIO COMMUNICATION SYSTEM WITH RADIO STATION DEPORTEE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7443511A|FR2296973B1|1974-12-31|1974-12-31|
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