FR2367384A1 - Base-band data signal output quality control - uses reference frequency in detecting phase modulation affecting data signal - Google Patents
Base-band data signal output quality control - uses reference frequency in detecting phase modulation affecting data signalInfo
- Publication number
- FR2367384A1 FR2367384A1 FR7630086A FR7630086A FR2367384A1 FR 2367384 A1 FR2367384 A1 FR 2367384A1 FR 7630086 A FR7630086 A FR 7630086A FR 7630086 A FR7630086 A FR 7630086A FR 2367384 A1 FR2367384 A1 FR 2367384A1
- Authority
- FR
- France
- Prior art keywords
- data signal
- signal
- reference frequency
- base
- phase modulation
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/205—Arrangements for detecting or preventing errors in the information received using signal quality detector jitter monitoring
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Circuits Of Receivers In General (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Abstract
The appts. provides control of the quantity of a base-band data signal, by detecting the phase modulation affecting the frequency of the signal. An emitter receiver has available the signal frequency (F1) reformed from the signal in question, and a reference frequency (F2) which is not modulated and close in frequency to the signal (F1) including the signal in question. The circuit includes a phase discriminator (10) receiving the signal frequency (F1) and the reference frequency (F2). A pass band filter (11) is connected to the output of the phase discriminator and a detector (12) receives the filter output.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7630086A FR2367384A1 (en) | 1976-10-06 | 1976-10-06 | Base-band data signal output quality control - uses reference frequency in detecting phase modulation affecting data signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7630086A FR2367384A1 (en) | 1976-10-06 | 1976-10-06 | Base-band data signal output quality control - uses reference frequency in detecting phase modulation affecting data signal |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2367384A1 true FR2367384A1 (en) | 1978-05-05 |
FR2367384B1 FR2367384B1 (en) | 1980-09-12 |
Family
ID=9178464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7630086A Granted FR2367384A1 (en) | 1976-10-06 | 1976-10-06 | Base-band data signal output quality control - uses reference frequency in detecting phase modulation affecting data signal |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2367384A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0315990A2 (en) * | 1987-11-10 | 1989-05-17 | Fujitsu Limited | Interference canceller and method of interference cancelling |
-
1976
- 1976-10-06 FR FR7630086A patent/FR2367384A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0315990A2 (en) * | 1987-11-10 | 1989-05-17 | Fujitsu Limited | Interference canceller and method of interference cancelling |
EP0315990A3 (en) * | 1987-11-10 | 1990-08-01 | Fujitsu Limited | Interference canceller and method of interference cancelling |
US4992798A (en) * | 1987-11-10 | 1991-02-12 | Fujitsu Limited | Interference canceller |
Also Published As
Publication number | Publication date |
---|---|
FR2367384B1 (en) | 1980-09-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |