JPS60163854U - 全二重変復調装置 - Google Patents

全二重変復調装置

Info

Publication number
JPS60163854U
JPS60163854U JP1983095718U JP9571883U JPS60163854U JP S60163854 U JPS60163854 U JP S60163854U JP 1983095718 U JP1983095718 U JP 1983095718U JP 9571883 U JP9571883 U JP 9571883U JP S60163854 U JPS60163854 U JP S60163854U
Authority
JP
Japan
Prior art keywords
modem
full
duplex
transmitting
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
JP1983095718U
Other languages
English (en)
Inventor
ジヨン・エイ・シー・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 JPS60163854U publication Critical patent/JPS60163854U/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ｉ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図は本考−案による全二重変復
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
直角振幅変調送信機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で描かれた第一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−・・・・・・雫末装置、１６−
・・・・・受信機１，１７・・・・・・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・・・・・・ヘテロゲ
イン　　−変調器、２７・・・・・・受信機帯域フィル
９，３０・・聞−スタート／ストップ回路、３３・・・
・・・キャラクタ・カウンタ、３４・・・・・・方形波
発振器、３５−・・・・・フリッチフロップ、３８・・
・・・・方形波発振器、３°９・・・・・・分周器、」
１・・・・・・位相選択器、４３・・・・・・インバー
タ、５１・・・・・・差動４位相符号器、６２．６３・
：・・・・　　　　′ディジタルーアナログ変換器、６
４．６５・・曲低域フィルタ、６６．６７・・・・・・
方形波変調器、７１．７２・・・・・・インバータ、７
５・・・・・・ジョンソン・°カウンタ、７６・・・・
・・方形波発振器、７９・曲・加算　−−器、−８１・
・・・・・低域フィルタ、８２・・・・・・可変減衰器
、８６・・・・・・搬送波再生回路、８７・・・・・・
クロック再生回路、１４２・・・・・・二重２線−１線
マルチプレクサ。

Claims (1)

  1. 【実用新案登録請求の範囲】 二線式回路を通し両方にデータ流を同時に送信および受
    信するための第１の全二重変復調装置を−備え、この第
    １の変復調装置はこの二線式回路の−遠隔端末位置の第
    ２の変復調装置一対しその受信データを自動的に該第１
    の変復調装置にループバ。 ツクすることを命令する検査信号を送る装置を含−み、
    かつ、前記第１の変復調装置は通信方式の正しい動作を
    検証するための送−されたデータとの比較を行うべく前
    記ループバックされたデータを受信し復調する装置を含
    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。
JP1983095718U 1974-04-11 1983-06-21 全二重変復調装置 Pending JPS60163854U (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
JPS60163854U true JPS60163854U (ja) 1985-10-31

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 (2)

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

Country Status (2)

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

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Also Published As

Publication number Publication date
US3937882A (en) 1976-02-10
JPS50137412A (ja) 1975-10-31
JPS5936649U (ja) 1984-03-07

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