GB966973A - Improvements in or relating to telecommunication systems - Google Patents
Improvements in or relating to telecommunication systemsInfo
- Publication number
- GB966973A GB966973A GB3437760A GB3437760A GB966973A GB 966973 A GB966973 A GB 966973A GB 3437760 A GB3437760 A GB 3437760A GB 3437760 A GB3437760 A GB 3437760A GB 966973 A GB966973 A GB 966973A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phase
- voltages
- voltage
- potential
- derived
- 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
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2338—Demodulator circuits; Receiver circuits using non-coherent demodulation using sampling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL245037 | 1959-11-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB966973A true GB966973A (en) | 1964-08-19 |
Family
ID=19752015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3437760A Expired GB966973A (en) | 1959-11-04 | 1960-10-07 | Improvements in or relating to telecommunication systems |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE596072A (enrdf_load_stackoverflow) |
DE (1) | DE1129553B (enrdf_load_stackoverflow) |
GB (1) | GB966973A (enrdf_load_stackoverflow) |
NL (2) | NL245037A (enrdf_load_stackoverflow) |
SE (1) | SE310004B (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2662890B1 (fr) * | 1990-05-29 | 1992-09-04 | Europ Agence Spatiale | Demodulateur numerique pour signal module par deplacement de phase a plusieurs etats. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL57799C (nl) * | 1941-03-07 | 1945-09-15 | Bell Telephone Mfg | Schakeling voor het besturen van een apparatuur in seinstelsels, in het bijzonder van de instelling van schakelaars in centrales voor telefoonstelsels |
NL73522C (nl) * | 1949-11-11 | 1953-03-16 | Nederlanden Staat | Inrichting voor het bepalen van de faze van een aan een punt aangelegde spanning van een n-fazensysteem |
BE523444A (enrdf_load_stackoverflow) * | 1952-10-21 |
-
0
- NL NL124187D patent/NL124187C/xx active
- NL NL245037D patent/NL245037A/xx unknown
-
1960
- 1960-10-07 GB GB3437760A patent/GB966973A/en not_active Expired
- 1960-10-08 DE DEST16993A patent/DE1129553B/de active Pending
- 1960-10-17 BE BE596072A patent/BE596072A/fr unknown
- 1960-11-01 SE SE1048860A patent/SE310004B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE596072A (fr) | 1961-02-15 |
DE1129553B (de) | 1962-05-17 |
NL124187C (enrdf_load_stackoverflow) | |
SE310004B (enrdf_load_stackoverflow) | 1969-04-14 |
NL245037A (enrdf_load_stackoverflow) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2424585A (en) | Telecommunication system | |
US2731512A (en) | Multichannel communication systems | |
US3138759A (en) | Pulse spacing detection circuit | |
NO137827B (no) | Fremgangsm}te til fremstilling av et overflateaktivt stoff | |
US3525816A (en) | Loop supervision circuitry | |
US3453551A (en) | Pulse sequence detector employing a shift register controlling a reversible counter | |
US2697750A (en) | Relayless line finder circuit | |
US3048819A (en) | Detection and measurement of errors in pulse code trains | |
GB966973A (en) | Improvements in or relating to telecommunication systems | |
GB843225A (en) | Improvements in or relating to electrical systems for determining the condition of electrical devices | |
US2640883A (en) | Marker control arrangement for selectors | |
US3821486A (en) | Bridge type supervisory detector with reduced breakdown voltage requirements | |
US4092489A (en) | Switching arrangement for monitoring polarity reversal on lines in telecommunication systems | |
FI62607B (fi) | Anordning att oevervaka belaeggningskvaliteten hos organ ingaoende i en organgrupp | |
US3430000A (en) | Circuit arrangement for testing lines in communication systems | |
US2611824A (en) | Telegraph receiving apparatus | |
US3328696A (en) | Transmitter protective circuit with preset permissible number of faults and adjustable interruption duration | |
US3213428A (en) | Sequential testing system | |
US2967212A (en) | Identifying testing or discriminating device | |
US3200264A (en) | Random selector | |
US3715511A (en) | Telephone pulsing circuit | |
US3971897A (en) | Circuit arrangement for a selective signal receiver, particularly for use in telephone systems | |
US2697752A (en) | Device for testing characterizing impedances | |
US2997646A (en) | Circuit ambiguity testing system | |
US2504959A (en) | Line class detecting system |