JPS4984712A - - Google Patents

Info

Publication number
JPS4984712A
JPS4984712A JP11862173A JP11862173A JPS4984712A JP S4984712 A JPS4984712 A JP S4984712A JP 11862173 A JP11862173 A JP 11862173A JP 11862173 A JP11862173 A JP 11862173A JP S4984712 A JPS4984712 A JP S4984712A
Authority
JP
Japan
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
JP11862173A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS4984712A publication Critical patent/JPS4984712A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
    • H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits
    • H04L27/122—Modulator circuits; Transmitter circuits using digital generation of carrier signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
JP11862173A 1972-11-29 1973-10-23 Pending JPS4984712A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7243278A FR2208584A5 (xx) 1972-11-29 1972-11-29

Publications (1)

Publication Number Publication Date
JPS4984712A true JPS4984712A (xx) 1974-08-14

Family

ID=9108255

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11862173A Pending JPS4984712A (xx) 1972-11-29 1973-10-23

Country Status (4)

Country Link
JP (1) JPS4984712A (xx)
DE (1) DE2358009A1 (xx)
FR (1) FR2208584A5 (xx)
GB (1) GB1404559A (xx)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52127740A (en) * 1976-04-19 1977-10-26 Chubu Nippon Housou Kk Phase modulating system
JPS5558651A (en) * 1975-09-29 1980-05-01 Mostek Corp Multiple frequency signal generator
JPS5586250A (en) * 1978-12-25 1980-06-28 Fujitsu Ltd Carrier generator
JPS60113556A (ja) * 1983-11-24 1985-06-20 Fujitsu Ltd ディジタルｆｓｋ信号発生装置
JPS60502181A (ja) * 1983-09-09 1985-12-12 データトレック・コーポレーション デジタル信号処理用のモデム

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1488435A (en) * 1974-11-21 1977-10-12 Ibm Multi-line multi-mode modulator
FR2322492A1 (fr) * 1975-08-29 1977-03-25 Cit Alcatel Dispositif numerique de generation d'une onde modulee en phase par un signal de donnees et filtree
US4008373A (en) * 1975-10-03 1977-02-15 Motorola, Inc. Digital differential phase shift keyed modulator
US4142245A (en) * 1977-08-22 1979-02-27 Texas Instruments Incorporated Multi-frequency digital wave synthesizer for providing analog output signals
CH636485A5 (en) * 1978-06-26 1983-05-31 Landis & Gyr Ag Signal generator for generating sinusoidal output signals with predetermined mutual phase angle, and use thereof as three-phase generator for calibrating electricity meters
DE3048155C2 (de) * 1980-12-19 1986-01-02 Siemens AG, 1000 Berlin und 8000 München Funksystem
GB2118384A (en) * 1982-03-26 1983-10-26 Plessey Co Plc Digital amplitude modulator
DE3345656A1 (de) * 1982-12-17 1984-06-28 Casio Computer Co., Ltd., Tokio/Tokyo Elektronisches musikinstrument
USRE34481E (en) * 1982-12-17 1993-12-21 Casio Computer Co., Ltd. Electronic musical instrument
JP2785821B2 (ja) * 1983-10-07 1998-08-13 ソニー株式会社 デイジタル信号発生回路
US4881190A (en) * 1986-09-02 1989-11-14 The United States Of America As Represented By The United States Department Of Energy Digitally programmable signal generator and method
DE3829985C2 (de) * 1988-09-03 1995-05-11 Fraunhofer Ges Forschung Digitaler Synthesizer
GB2239140B (en) * 1989-12-16 1993-12-22 Motorola Israel Ltd A signal generator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934204Y2 (ja) * 1975-09-25 1984-09-21 モステク・コ−ポレ−シヨン 信号発生器
JPS5558651A (en) * 1975-09-29 1980-05-01 Mostek Corp Multiple frequency signal generator
JPS56114151U (xx) * 1975-09-29 1981-09-02
JPS52127740A (en) * 1976-04-19 1977-10-26 Chubu Nippon Housou Kk Phase modulating system
JPS575385B2 (xx) * 1976-04-19 1982-01-30
JPS5586250A (en) * 1978-12-25 1980-06-28 Fujitsu Ltd Carrier generator
JPS60502181A (ja) * 1983-09-09 1985-12-12 データトレック・コーポレーション デジタル信号処理用のモデム
JPS60113556A (ja) * 1983-11-24 1985-06-20 Fujitsu Ltd ディジタルｆｓｋ信号発生装置

Also Published As

Publication number Publication date
GB1404559A (en) 1975-09-03
DE2358009A1 (de) 1974-05-30
FR2208584A5 (xx) 1974-06-21

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