JPS5171767A - - Google Patents

Info

Publication number
JPS5171767A
JPS5171767A JP50132214A JP13221475A JPS5171767A JP S5171767 A JPS5171767 A JP S5171767A JP 50132214 A JP50132214 A JP 50132214A JP 13221475 A JP13221475 A JP 13221475A JP S5171767 A JPS5171767 A JP S5171767A
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.)
Granted
Application number
JP50132214A
Other versions
JPS5429334B2 (ja
Inventor
Deii Joonzu Junia Gaadonaa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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
Priority claimed from US05/525,699 external-priority patent/US3958191A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS5171767A publication Critical patent/JPS5171767A/ja
Publication of JPS5429334B2 publication Critical patent/JPS5429334B2/ja
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • 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
    • H04L5/02—Channels characterised by the type of signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP13221475A 1974-11-21 1975-11-05 Expired JPS5429334B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/525,699 US3958191A (en) 1974-11-21 1974-11-21 Multi-line, multi-mode modulator using bandwidth reduction for digital fsk and dpsk modulation

Publications (2)

Publication Number Publication Date
JPS5171767A true JPS5171767A (ja) 1976-06-21
JPS5429334B2 JPS5429334B2 (ja) 1979-09-22

Family

ID=24094283

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13221475A Expired JPS5429334B2 (ja) 1974-11-21 1975-11-05

Country Status (7)

Country Link
JP (1) JPS5429334B2 (ja)
BR (1) BR7507723A (ja)
CA (1) CA1079857A (ja)
DE (1) DE2542474C2 (ja)
FR (1) FR2292372A1 (ja)
GB (3) GB1488434A (ja)
IT (1) IT1042772B (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5266347A (en) * 1975-11-26 1977-06-01 Western Electric Co Data transfer device
JPH01105647A (ja) * 1987-10-02 1989-04-24 Yokogawa Hewlett Packard Ltd 変調信号の供給装置及び予備変調フィルタ及び変調装置
JPH03253151A (ja) * 1990-03-02 1991-11-12 Fujitsu Denso Ltd 周波数シフト変調方法
JP2020102673A (ja) * 2018-11-14 2020-07-02 國家中山科學研究院 通信用送受信器における周波数シフト・キーイング変調と復調構造

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142245A (en) * 1977-08-22 1979-02-27 Texas Instruments Incorporated Multi-frequency digital wave synthesizer for providing analog output signals
GB2071966B (en) * 1979-06-08 1983-10-26 Ericsson Telefon Ab L M Converter included in a phase modulator
US4320361A (en) * 1979-07-20 1982-03-16 Marconi Instruments Limited Amplitude and frequency modulators using a switchable component controlled by data signals
FR2477801A1 (fr) * 1980-03-05 1981-09-11 Thomson Csf Procede de modulation de phase par un signal binaire et dispositif mettant en oeuvre ce procede
AT377462B (de) * 1981-06-20 1985-03-25 Union Carbide Corp Verfahren zum thermochemischen flaemmen eines metallischen werkstueckes
GB2116795A (en) * 1982-03-02 1983-09-28 Racal Mesl Microwave Electrical signal generation
GB2160728A (en) * 1984-06-21 1985-12-24 Motorola Israel Ltd Waveform synthesizer
DE3514664A1 (de) * 1985-04-23 1986-10-30 Josef Dipl.-Ing. Dirr (FH), 8000 München Verfahren fuer eine codierung von daten durch die phase eines wechselstromes, insbesondere fuer fernmeldeanlagen
DE3716054C2 (de) * 1987-05-14 1996-06-13 Daimler Benz Aerospace Ag Modulator
DE3716060C2 (de) * 1987-05-14 1996-06-13 Daimler Benz Aerospace Ag Modulator zur Erzeugung eines frequenzumgetasteten HF-Signals
US4794621A (en) * 1987-08-26 1988-12-27 Josef Dirr Apparatus for transmitting information by angle modulation
GB2368244A (en) * 2000-10-10 2002-04-24 Seiko Epson Corp Signal processor with look-up table for modulating data

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497625A (en) * 1965-07-15 1970-02-24 Sylvania Electric Prod Digital modulation and demodulation in a communication system
US3633017A (en) * 1970-01-07 1972-01-04 Sperry Rand Corp Digital waveform generator
FR2110845A5 (ja) * 1970-10-29 1972-06-02 Ibm France
US3697892A (en) * 1971-02-19 1972-10-10 Bell Telephone Labor Inc Digital frequency-shift modulator using a read-only-memory
FR2208584A5 (ja) * 1972-11-29 1974-06-21 Ibm France
US3890581A (en) * 1972-12-27 1975-06-17 Rixon Digital FM (FSK) modulator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5266347A (en) * 1975-11-26 1977-06-01 Western Electric Co Data transfer device
JPH01105647A (ja) * 1987-10-02 1989-04-24 Yokogawa Hewlett Packard Ltd 変調信号の供給装置及び予備変調フィルタ及び変調装置
JPH03253151A (ja) * 1990-03-02 1991-11-12 Fujitsu Denso Ltd 周波数シフト変調方法
JP2020102673A (ja) * 2018-11-14 2020-07-02 國家中山科學研究院 通信用送受信器における周波数シフト・キーイング変調と復調構造

Also Published As

Publication number Publication date
BR7507723A (pt) 1976-08-10
IT1042772B (it) 1980-01-30
CA1079857A (en) 1980-06-17
GB1488433A (en) 1977-10-12
GB1488434A (en) 1977-10-12
DE2542474A1 (de) 1976-05-26
GB1488435A (en) 1977-10-12
FR2292372A1 (fr) 1976-06-18
DE2542474C2 (de) 1983-02-24
JPS5429334B2 (ja) 1979-09-22
FR2292372B1 (ja) 1977-12-16

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