FR2292372B1 - - Google Patents

Info

Publication number: FR2292372B1
Authority: FR; France
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.): Expired

Application number

FR7530733A

Other languages

Other versions

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.)

1974-11-21

Filing date

1975-10-01

Publication date

1977-12-16

1974-11-21 Priority claimed from US05/525,699 external-priority patent/US3958191A/en

1975-10-01 Application filed by International Business Machines Corp filed Critical International Business Machines Corp

1976-06-18 Publication of FR2292372A1 publication Critical patent/FR2292372A1/fr

1977-12-16 Application granted granted Critical

1977-12-16 Publication of FR2292372B1 publication Critical patent/FR2292372B1/fr

Status Granted legal-status Critical Current

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)

FR7530733A 1974-11-21 1975-10-01 Modulateur numerique a largeur de bande reduite Granted FR2292372A1 (fr)

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
FR2292372A1 FR2292372A1 (fr)	1976-06-18
FR2292372B1 true FR2292372B1 (de)	1977-12-16

Family

ID=24094283

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7530733A Granted FR2292372A1 (fr)	1974-11-21	1975-10-01	Modulateur numerique a largeur de bande reduite

Country Status (7)

Country	Link
JP (1)	JPS5429334B2 (de)
BR (1)	BR7507723A (de)
CA (1)	CA1079857A (de)
DE (1)	DE2542474C2 (de)
FR (1)	FR2292372A1 (de)
GB (3)	GB1488435A (de)
IT (1)	IT1042772B (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA1075364A (en) *	1975-11-26	1980-04-08	David N. Sherman	Multiport programmable digital data set
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
DE3716060C2 (de) *	1987-05-14	1996-06-13	Daimler Benz Aerospace Ag	Modulator zur Erzeugung eines frequenzumgetasteten HF-Signals
DE3716054C2 (de) *	1987-05-14	1996-06-13	Daimler Benz Aerospace Ag	Modulator
US4794621A (en) *	1987-08-26	1988-12-27	Josef Dirr	Apparatus for transmitting information by angle modulation
US4757519A (en) *	1987-10-02	1988-07-12	Hewlett-Packard	Digital premodulation filter
JPH03253151A (ja) *	1990-03-02	1991-11-12	Fujitsu Denso Ltd	周波数シフト変調方法
GB2368244A (en) *	2000-10-10	2002-04-24	Seiko Epson Corp	Signal processor with look-up table for modulating data
TWM578052U (zh) *	2018-11-14	2019-05-11	國家中山科學研究院	Frequency shift button modulation and demodulation structure of communication transceiver

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 (de) *	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 (de) *	1972-11-29	1974-06-21	Ibm France
US3890581A (en) *	1972-12-27	1975-06-17	Rixon	Digital FM (FSK) modulator

1975
- 1975-08-21 GB GB3055276A patent/GB1488435A/en not_active Expired
- 1975-08-21 GB GB3473075A patent/GB1488433A/en not_active Expired
- 1975-08-21 GB GB3055176A patent/GB1488434A/en not_active Expired
- 1975-09-23 IT IT2752675A patent/IT1042772B/it active
- 1975-09-24 DE DE19752542474 patent/DE2542474C2/de not_active Expired
- 1975-10-01 FR FR7530733A patent/FR2292372A1/fr active Granted
- 1975-10-20 CA CA238,132A patent/CA1079857A/en not_active Expired
- 1975-11-05 JP JP13221475A patent/JPS5429334B2/ja not_active Expired
- 1975-11-21 BR BR7507723A patent/BR7507723A/pt unknown

Also Published As

Publication number	Publication date
IT1042772B (it)	1980-01-30
DE2542474A1 (de)	1976-05-26
GB1488435A (en)	1977-10-12
CA1079857A (en)	1980-06-17
DE2542474C2 (de)	1983-02-24
JPS5171767A (de)	1976-06-21
BR7507723A (pt)	1976-08-10
JPS5429334B2 (de)	1979-09-22
GB1488434A (en)	1977-10-12
GB1488433A (en)	1977-10-12
FR2292372A1 (fr)	1976-06-18

Publication	Publication Date	Title
FR2292372B1 (de)	1977-12-16
AU7462274A (de)	1976-04-29
AU7459574A (de)	1976-04-29
AU488280B2 (de)	1976-07-15
BG19995A1 (de)	1975-10-30
BG19879A1 (de)	1975-10-30
AU481915A (de)	1975-09-11
AU482171A (de)	1975-10-16
AU482236A (de)	1976-05-06
AU482308A (de)	1975-12-18
AU482332A (de)	1976-02-12
AU481516A (de)	1975-07-10
AU480783A (de)	1976-06-24
AU480371A (de)	1975-04-24
BE833391A (de)	1975-12-31
BG19609A2 (de)	1975-10-10
BG19639A1 (de)	1975-10-10
BG19643A1 (de)	1975-10-10
BG19729A1 (de)	1975-12-20
BG20723A1 (de)	1975-12-20
BG19890A1 (de)	1975-10-30
BG19905A1 (de)	1975-10-30
BG19908A1 (de)	1975-10-30
BG19927A1 (de)	1975-10-30
BG20702A1 (de)	1975-12-20

Legal Events

Date	Code	Title	Description
1987-08-21	ST	Notification of lapse