JPS5936649U - 全二重変復調装置 - Google Patents

全二重変復調装置

Info

Publication number
JPS5936649U
JPS5936649U JP1983095717U JP9571783U JPS5936649U JP S5936649 U JPS5936649 U JP S5936649U JP 1983095717 U JP1983095717 U JP 1983095717U JP 9571783 U JP9571783 U JP 9571783U JP S5936649 U JPS5936649 U JP S5936649U
Authority
JP
Japan
Prior art keywords
full
wire circuit
carrier frequency
duplex modem
block diagram
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1983095717U
Other languages
English (en)
Inventor
ジヨン・エイ・シ−・ビンガム
Original Assignee
レイカル・デ−タ−・コミュニケ−ションズ・インコ−ポレ−テッド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by レイカル・デ−タ−・コミュニケ−ションズ・インコ−ポレ−テッド filed Critical レイカル・デ−タ−・コミュニケ−ションズ・インコ−ポレ−テッド
Publication of JPS5936649U publication Critical patent/JPS5936649U/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
    • H04L5/24—Arrangements affording multiple use of the transmission path using time-division multiplexing with start-stop synchronous converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/143—Two-way operation using the same type of signal, i.e. duplex for modulated signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【図面の簡単な説明】
第１図は二線式線路を通して通信を行うための全二重通
信方式であって本考案の特徴を合体するものの概略ブロ
ックダイヤグラム、第２図は本発明による全二重変復調
装置の概略ブロックダイヤグラム、第３図は第２図の回
路の線３−３で描か゛　　れた非同期−同期変換器のブ
ロックダイヤグラム、第４図は第２図の線４−４で描か
れた直角振幅変調送信器の概略ブロックダイヤグラム、
第５図は第２図の線５−５で描かれた全二重コヒーレン
ト検波受信機の概略ブロックダイヤグラム、第６図は線
６−６で描かれた第５図の回路の一部の概略回路図であ
る。 １０：全二重通信方式、１１，１２：変復調装置、１３
：電話線、１４：送信機、１５：端末装置、　　゛１６
：受信機、１７：ハイブリッド結合装置、１８：非同期
−同期変換器、１９：モード制御装置、２６：ヘテロダ
イン変調器、２７：受信機帯域フィルタ、３０ニスタ一
ト／ストツプ回路、３３：キャラクタ・カウンタ、３４
：方形波発振器、３５：フリップフロップ、３８：方形
波発振器、３９：分周器、４１：位相選択器、４３：イ
ンバータ、５１：差ａ　４　位相符号器、６２．　６３
：ディジタル−アナログ変換器、６４．　６５：低域フ
ィルタ、６６゜６７：方形波変調器、？１，７２：イン
バータ、７５：ジョンソン・カウンタ、７６：方形波発
振器、７９：加算器、８１：低域フィルタ、８２：可変
減衰器、８Ｇ−搬送波再生回路、８７：フロック再生回
路、１４２：二重２線−１線マルチプレクサ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 二線式回路を通し第１の搬送周波数でデータ流を送信す
    るように二線式回路に接続されるべき送信装置と、前記
    送信装置によるデータの送信と同時に第２の搬送周波数
    で前記二線式回路のデータ流を受信するように前記送信
    装置の位置において同じ二線式回路に接続されるべき受
    信装置とを具備し、前記送信装置は前記第１の搬送周波
    数で送信されるべきデータ流のデータを同期させる装置
    を含み、前記受信装置は前記第２の搬送周波数で受信さ
    れるデータ流中のデータを同期状態にて検出する装置を
    含むようにした、二線式回路を通し通信を行うための全
    二重変復調装置。
JP1983095717U 1974-04-11 1983-06-21 全二重変復調装置 Pending JPS5936649U (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/460,179 US3937882A (en) 1974-04-11 1974-04-11 Full-duplex communication system on a two wire line
US460179 1974-04-11

Publications (1)

Publication Number Publication Date
JPS5936649U true JPS5936649U (ja) 1984-03-07

Family

ID=23827669

Family Applications (3)

Application Number Title Priority Date Filing Date
JP50026431A Pending JPS50137412A (ja) 1974-04-11 1975-03-04
JP1983095717U Pending JPS5936649U (ja) 1974-04-11 1983-06-21 全二重変復調装置
JP1983095718U Pending JPS60163854U (ja) 1974-04-11 1983-06-21 全二重変復調装置

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP50026431A Pending JPS50137412A (ja) 1974-04-11 1975-03-04

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP1983095718U Pending JPS60163854U (ja) 1974-04-11 1983-06-21 全二重変復調装置

Country Status (2)

Country Link
US (1) US3937882A (ja)
JP (3) JPS50137412A (ja)

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DE2916576C3 (de) * 1979-04-24 1981-12-10 Siemens AG, 1000 Berlin und 8000 München Digital-Fernmeldesystem für Zweidraht-Getrenntlage-Betrieb
US4856024A (en) * 1979-07-02 1989-08-08 Honeywell Inc. Data transceiving modem
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Also Published As

Publication number Publication date
JPS60163854U (ja) 1985-10-31
US3937882A (en) 1976-02-10
JPS50137412A (ja) 1975-10-31

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