GB1213620A - Improvements in or relating to data transmission systems - Google Patents
Improvements in or relating to data transmission systemsInfo
- Publication number
- GB1213620A GB1213620A GB2293269A GB2293269A GB1213620A GB 1213620 A GB1213620 A GB 1213620A GB 2293269 A GB2293269 A GB 2293269A GB 2293269 A GB2293269 A GB 2293269A GB 1213620 A GB1213620 A GB 1213620A
- Authority
- GB
- United Kingdom
- Prior art keywords
- message
- priority
- word
- signal
- interrupted
- Prior art date
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systemsÂ
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Communication Control (AREA)
- Computer And Data Communications (AREA)
- Telephonic Communication Services (AREA)
Abstract
1,213,620. Digital transmission systems. SIEMENS A.G. 6 May, 1969 [7 May, 1968], No. 22932/69. Heading H4P. Received messages of various priorities are distributed to the appropriate receiver S1, S2 or S3 by the circuit shown. Each message consists of one or more n-bit words, the first word including a Start signal and a priority signal, and the last word including an End signal. A message of one priority can be interrupted by a message of higher priority. When a message ends the most recently interrupted message resumes. Thus, as shown, a first message consisting of words Z11- Z14 and having priority P3 is interrupted by message Z21-Z24 having priority P2, this message itself being interrupted by message Z3 having priority P3. Each received word is stored at R, and D1 determines whether a Start or End signal is present and sets bi-stables Ka, Ke accordingly. If a Start signal is present D2 examines the priority signal and sets bi-stable K1, K2 or K3 accordingly, the latter controlling unit V to pass the word from R to the receiver S1, S2 or S3 of appropriate priority. K1-K3 also control unit L which, when an End signal is received, resets that one of K1-K3 which represents the priority of the message just ended so that the next word received is passed by V to the appropriate receiver. Ka, Ke are reset whenever a word is read from R.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681762242 DE1299017B (en) | 1968-05-07 | 1968-05-07 | Method and circuit arrangement for forwarding incoming messages, each represented by one or more code characters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1213620A true GB1213620A (en) | 1970-11-25 |
Family
ID=5696937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2293269A Expired GB1213620A (en) | 1968-05-07 | 1969-05-06 | Improvements in or relating to data transmission systems |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS4815568B1 (en) |
AT (1) | AT300904B (en) |
BE (1) | BE732658A (en) |
CH (1) | CH496376A (en) |
DE (1) | DE1299017B (en) |
FR (1) | FR2007964A1 (en) |
GB (1) | GB1213620A (en) |
NL (1) | NL6906525A (en) |
SE (1) | SE358273B (en) |
SU (1) | SU496752A3 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1221267B (en) * | 1960-03-07 | 1966-07-21 | Philips Nv | Circuit arrangement for the preferential sending of messages of different urgency in telecommunication systems, in particular teleprinter systems |
CH402079A (en) * | 1960-09-23 | 1965-11-15 | Standard Telephon & Radio Ag | Information transmission device |
-
1968
- 1968-05-07 DE DE19681762242 patent/DE1299017B/en not_active Withdrawn
-
1969
- 1969-04-28 NL NL6906525A patent/NL6906525A/xx not_active Application Discontinuation
- 1969-05-05 AT AT430369A patent/AT300904B/en not_active IP Right Cessation
- 1969-05-05 FR FR6914249A patent/FR2007964A1/fr not_active Withdrawn
- 1969-05-05 CH CH685369A patent/CH496376A/en not_active IP Right Cessation
- 1969-05-06 GB GB2293269A patent/GB1213620A/en not_active Expired
- 1969-05-07 JP JP44035100A patent/JPS4815568B1/ja active Pending
- 1969-05-07 SE SE649669A patent/SE358273B/xx unknown
- 1969-05-07 BE BE732658D patent/BE732658A/xx unknown
- 1969-09-23 SU SU1360925A patent/SU496752A3/en active
Also Published As
Publication number | Publication date |
---|---|
SE358273B (en) | 1973-07-23 |
AT300904B (en) | 1972-08-10 |
NL6906525A (en) | 1969-11-11 |
DE1299017B (en) | 1969-07-10 |
SU496752A3 (en) | 1975-12-25 |
JPS4815568B1 (en) | 1973-05-16 |
CH496376A (en) | 1970-09-15 |
BE732658A (en) | 1969-11-07 |
FR2007964A1 (en) | 1970-01-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |