SE402510B - Sett att utbyta data mellan en lokal terminal och en avlegsen terminal via en tvatradig transmissionsledning samt apparat for genomforande av settet - Google Patents
Sett att utbyta data mellan en lokal terminal och en avlegsen terminal via en tvatradig transmissionsledning samt apparat for genomforande av settetInfo
- Publication number
- SE402510B SE402510B SE7511637A SE7511637A SE402510B SE 402510 B SE402510 B SE 402510B SE 7511637 A SE7511637 A SE 7511637A SE 7511637 A SE7511637 A SE 7511637A SE 402510 B SE402510 B SE 402510B
- Authority
- SE
- Sweden
- Prior art keywords
- kit
- implementing
- way
- transmission line
- exchange data
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment
-
- 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
- H04L25/4904—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 using self-synchronising codes, e.g. split-phase codes
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Bidirectional Digital Transmission (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Dc Digital Transmission (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA211,515A CA996691A (en) | 1974-10-16 | 1974-10-16 | Tow wire, full duplex data transmission system |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7511637L SE7511637L (sv) | 1976-04-20 |
SE402510B true SE402510B (sv) | 1978-07-03 |
Family
ID=4101371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7511637A SE402510B (sv) | 1974-10-16 | 1975-10-16 | Sett att utbyta data mellan en lokal terminal och en avlegsen terminal via en tvatradig transmissionsledning samt apparat for genomforande av settet |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5172201A (ja) |
CA (1) | CA996691A (ja) |
DE (1) | DE2546422C2 (ja) |
FR (1) | FR2331222A1 (ja) |
GB (1) | GB1522682A (ja) |
IT (1) | IT1043321B (ja) |
NL (1) | NL180799C (ja) |
SE (1) | SE402510B (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5474602A (en) * | 1977-11-28 | 1979-06-14 | Hitachi Ltd | Photo delivery unit of synchronous type |
JPS5814104B2 (ja) * | 1978-04-28 | 1983-03-17 | 株式会社東芝 | 情報伝送方式 |
US4287596A (en) * | 1979-11-26 | 1981-09-01 | Ncr Corporation | Data recovery system for use with a high speed serial link between two subsystems in a data processing system |
EP0059493B1 (de) * | 1981-02-27 | 1985-01-23 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Einrichtung zur Decodierung eines Biphase-codierten Signals sowie Verwendung der Einrichtung |
JPS58151154A (ja) * | 1982-03-03 | 1983-09-08 | Hitachi Ltd | 装置間伝送方式 |
US4584719A (en) * | 1984-08-24 | 1986-04-22 | System Development Corp. | Fiber optic workstation datalink interface |
CN115314071A (zh) * | 2022-08-12 | 2022-11-08 | 程艳 | 一种全双工双向模拟前端混合收发器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1216759A (en) * | 1968-05-23 | 1970-12-23 | Standard Telephones Cables Ltd | Subscriber subset for p.c.m. telephone system |
GB1182363A (en) * | 1968-07-26 | 1970-02-25 | Standard Telephones Cables Ltd | Subscriber Subset for PCM Telephone System |
GB1229149A (ja) * | 1969-07-28 | 1971-04-21 | ||
US3637939A (en) * | 1970-05-07 | 1972-01-25 | Bell Telephone Labor Inc | Line status control for electronic key telephone system |
-
1974
- 1974-10-16 CA CA211,515A patent/CA996691A/en not_active Expired
-
1975
- 1975-10-03 NL NL7511655A patent/NL180799C/xx not_active IP Right Cessation
- 1975-10-03 GB GB4061475A patent/GB1522682A/en not_active Expired
- 1975-10-13 IT IT2822575A patent/IT1043321B/it active
- 1975-10-15 JP JP12334975A patent/JPS5172201A/ja active Pending
- 1975-10-15 FR FR7531587A patent/FR2331222A1/fr active Granted
- 1975-10-16 DE DE19752546422 patent/DE2546422C2/de not_active Expired
- 1975-10-16 SE SE7511637A patent/SE402510B/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2331222A1 (fr) | 1977-06-03 |
JPS5172201A (en) | 1976-06-22 |
NL7511655A (nl) | 1976-04-21 |
DE2546422C2 (de) | 1986-12-18 |
FR2331222B1 (ja) | 1981-10-09 |
SE7511637L (sv) | 1976-04-20 |
DE2546422A1 (de) | 1976-04-22 |
NL180799B (nl) | 1986-11-17 |
CA996691A (en) | 1976-09-07 |
IT1043321B (it) | 1980-02-20 |
NL180799C (nl) | 1987-04-16 |
GB1522682A (en) | 1978-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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