GB1436847A - System for measuring group delay distortions and attenuation distortions on part of a transmission channel which forms a loop - Google Patents
System for measuring group delay distortions and attenuation distortions on part of a transmission channel which forms a loopInfo
- Publication number
- GB1436847A GB1436847A GB1803173A GB1803173A GB1436847A GB 1436847 A GB1436847 A GB 1436847A GB 1803173 A GB1803173 A GB 1803173A GB 1803173 A GB1803173 A GB 1803173A GB 1436847 A GB1436847 A GB 1436847A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- frequency
- carrier
- receiver
- output
- 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
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
- H04B3/462—Testing group delay or phase shift, e.g. timing jitter
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2221256A DE2221256C2 (de) | 1972-04-29 | 1972-04-29 | Anordnung zur Messung von Gruppenlaufzeit- und/oder Dämpfungsverzerrungen auf einer Teilstrecke einer eine Schleife bildenden Übertragungsstrecke |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1436847A true GB1436847A (en) | 1976-05-26 |
Family
ID=5843725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1803173A Expired GB1436847A (en) | 1972-04-29 | 1973-04-13 | System for measuring group delay distortions and attenuation distortions on part of a transmission channel which forms a loop |
Country Status (4)
Country | Link |
---|---|
US (1) | US3899738A (US08063081-20111122-C00044.png) |
DE (1) | DE2221256C2 (US08063081-20111122-C00044.png) |
FR (1) | FR2183189B1 (US08063081-20111122-C00044.png) |
GB (1) | GB1436847A (US08063081-20111122-C00044.png) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2154751A (en) * | 1984-01-09 | 1985-09-11 | Hewlett Packard Co | Vector network analyzer with integral processor |
CN105092985A (zh) * | 2014-12-30 | 2015-11-25 | 北京无线电计量测试研究所 | 基于锁相放大器的衰减参数测量装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4791659A (en) * | 1986-10-30 | 1988-12-13 | Domain Systems, Inc. | Remote test telephone line access system |
US4845735A (en) * | 1988-06-14 | 1989-07-04 | General Datacomm, Inc. | Non-interfering method for measuring propagation delay of telecommunications network and apparatus for accomplishing same |
DE69130734T2 (de) * | 1991-06-04 | 1999-06-10 | Alcatel, Paris | Verfahren zur Messung der Zeitverzögerung einer Entzerrung in einem Übertragungssystem und zugehöriges Übertragungssystem |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3629696A (en) * | 1968-08-06 | 1971-12-21 | Northeast Electronics Corp | Method and apparatus for measuring delay distortion including simultaneously applied modulated signals |
DE2102511C3 (de) * | 1971-01-20 | 1974-01-03 | Vierling, Oskar, Prof. Dr.Phil. Habil., 8553 Ebermannstadt | Verfahren zum Messen der frequenzabhängigen Dämpfung einer Zweidrahtleitung |
-
1972
- 1972-04-29 DE DE2221256A patent/DE2221256C2/de not_active Expired
-
1973
- 1973-04-13 GB GB1803173A patent/GB1436847A/en not_active Expired
- 1973-04-24 FR FR7315779A patent/FR2183189B1/fr not_active Expired
-
1974
- 1974-08-08 US US495848A patent/US3899738A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2154751A (en) * | 1984-01-09 | 1985-09-11 | Hewlett Packard Co | Vector network analyzer with integral processor |
US4669051A (en) * | 1984-01-09 | 1987-05-26 | Hewlett-Packard Company | Vector network analyzer with integral processor |
CN105092985A (zh) * | 2014-12-30 | 2015-11-25 | 北京无线电计量测试研究所 | 基于锁相放大器的衰减参数测量装置 |
CN105092985B (zh) * | 2014-12-30 | 2019-01-25 | 北京无线电计量测试研究所 | 基于锁相放大器的衰减参数测量装置 |
Also Published As
Publication number | Publication date |
---|---|
US3899738A (en) | 1975-08-12 |
DE2221256C2 (de) | 1974-02-21 |
FR2183189B1 (US08063081-20111122-C00044.png) | 1983-06-24 |
FR2183189A1 (US08063081-20111122-C00044.png) | 1973-12-14 |
DE2221256B1 (de) | 1973-08-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |