SE8008904L - Kopplingsanordning for anvendning i en dataoverforingsanleggning - Google Patents
Kopplingsanordning for anvendning i en dataoverforingsanleggningInfo
- Publication number
- SE8008904L SE8008904L SE8008904A SE8008904A SE8008904L SE 8008904 L SE8008904 L SE 8008904L SE 8008904 A SE8008904 A SE 8008904A SE 8008904 A SE8008904 A SE 8008904A SE 8008904 L SE8008904 L SE 8008904L
- Authority
- SE
- Sweden
- Prior art keywords
- tone
- signal
- gate
- integrator
- dss
- Prior art date
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Dc Digital Transmission (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7944027A GB2066628B (en) | 1979-12-21 | 1979-12-21 | Circuit arrangement for transmitting binary data elements as two tone frequences |
Publications (1)
Publication Number | Publication Date |
---|---|
SE8008904L true SE8008904L (sv) | 1981-06-22 |
Family
ID=10509985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8008904A SE8008904L (sv) | 1979-12-21 | 1980-12-18 | Kopplingsanordning for anvendning i en dataoverforingsanleggning |
Country Status (7)
Country | Link |
---|---|
US (1) | US4370747A (sv) |
JP (1) | JPS5698961A (sv) |
DE (1) | DE3046803A1 (sv) |
FR (1) | FR2472316A1 (sv) |
GB (1) | GB2066628B (sv) |
IT (1) | IT1134788B (sv) |
SE (1) | SE8008904L (sv) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4555792A (en) * | 1981-10-02 | 1985-11-26 | U.S. Philips Corporation | Transmitter for transmitting an FSK-modulated signal |
JPS5954359A (ja) * | 1982-09-22 | 1984-03-29 | Hitachi Ltd | デイジタルデ−タ転送方式 |
DE3429959C2 (de) * | 1984-08-16 | 1986-12-18 | Rohde & Schwarz GmbH & Co KG, 8000 München | Verfahren zur Nachrichtenübertragung mittels Frequenzumtast-Modulation |
US4686490A (en) * | 1986-04-07 | 1987-08-11 | Hayes Microcomputer Products, Inc. | Digital data modulator and digital-to-analog converter |
JP2003196829A (ja) * | 2001-12-25 | 2003-07-11 | Sanyo Electric Co Ltd | データ処理装置 |
JP2014183349A (ja) * | 2013-03-18 | 2014-09-29 | Renesas Electronics Corp | 半導体装置及び半導体チップ |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3408572A (en) * | 1965-07-06 | 1968-10-29 | Digitronics Corp | Controlled amplitude frequency shift signal generator |
US3648195A (en) * | 1970-03-11 | 1972-03-07 | Digitronics Corp | Modulator using a harmonic filter |
US3659048A (en) * | 1970-04-30 | 1972-04-25 | Westinghouse Electric Corp | Digital frequency change control system |
US3638142A (en) * | 1970-07-20 | 1972-01-25 | Ericsson Telefon Ab L M | Frequency shift modulator with amplitude compensation |
DE2153376B2 (de) * | 1971-10-27 | 1976-09-30 | Fujitsu Ltd., Kawasaki, Kanagawa (Japan) | Digitale nachrichtenuebertragungsanordnung |
US3959604A (en) * | 1975-04-07 | 1976-05-25 | International Business Machines Corporation | Digital calling signal tone generating circuitry |
GB1590322A (en) * | 1977-05-20 | 1981-05-28 | Racal Res Ltd | Data transmission |
US4170764A (en) * | 1978-03-06 | 1979-10-09 | Bell Telephone Laboratories, Incorporated | Amplitude and frequency modulation system |
JPS54152847A (en) * | 1978-05-23 | 1979-12-01 | Seikosha Kk | Signal converter |
-
1979
- 1979-12-21 GB GB7944027A patent/GB2066628B/en not_active Expired
-
1980
- 1980-12-12 DE DE19803046803 patent/DE3046803A1/de not_active Withdrawn
- 1980-12-15 US US06/216,234 patent/US4370747A/en not_active Expired - Fee Related
- 1980-12-17 FR FR8026793A patent/FR2472316A1/fr active Granted
- 1980-12-18 IT IT26757/80A patent/IT1134788B/it active
- 1980-12-18 SE SE8008904A patent/SE8008904L/sv not_active Application Discontinuation
- 1980-12-20 JP JP17974080A patent/JPS5698961A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB2066628A (en) | 1981-07-08 |
JPS5698961A (en) | 1981-08-08 |
FR2472316B1 (sv) | 1984-02-24 |
FR2472316A1 (fr) | 1981-06-26 |
IT8026757A0 (it) | 1980-12-18 |
IT1134788B (it) | 1986-08-13 |
DE3046803A1 (de) | 1981-09-03 |
GB2066628B (en) | 1984-04-04 |
US4370747A (en) | 1983-01-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
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