DK168975B1 - Apparat til begrænsning af en radiobølgesenders udgangseffekt og anvendelse deraf - Google Patents
Apparat til begrænsning af en radiobølgesenders udgangseffekt og anvendelse deraf Download PDFInfo
- Publication number
- DK168975B1 DK168975B1 DK272385A DK272385A DK168975B1 DK 168975 B1 DK168975 B1 DK 168975B1 DK 272385 A DK272385 A DK 272385A DK 272385 A DK272385 A DK 272385A DK 168975 B1 DK168975 B1 DK 168975B1
- Authority
- DK
- Denmark
- Prior art keywords
- signal
- limiter
- input
- level
- coupler
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims description 10
- 230000001052 transient effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000003111 delayed effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 2
- 230000007704 transition Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000001934 delay Effects 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
- H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
- H03G3/3047—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers for intermittent signals, e.g. burst signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
- H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
- H03G3/348—Muting in response to a mechanical action or to power supply variations, e.g. during tuning; Click removal circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8409479 | 1984-06-18 | ||
| FR8409479A FR2566206B1 (fr) | 1984-06-18 | 1984-06-18 | Dispositif pour limiter la puissance d'emission d'emetteurs d'ondes radioelectriques |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK272385D0 DK272385D0 (da) | 1985-06-17 |
| DK272385A DK272385A (da) | 1985-12-19 |
| DK168975B1 true DK168975B1 (da) | 1994-07-18 |
Family
ID=9305124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK272385A DK168975B1 (da) | 1984-06-18 | 1985-06-17 | Apparat til begrænsning af en radiobølgesenders udgangseffekt og anvendelse deraf |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4660003A (de) |
| EP (1) | EP0172042B1 (de) |
| JP (1) | JPS6113716A (de) |
| AR (1) | AR242472A1 (de) |
| AT (1) | ATE39203T1 (de) |
| CA (1) | CA1238367A (de) |
| DE (1) | DE3566761D1 (de) |
| DK (1) | DK168975B1 (de) |
| FR (1) | FR2566206B1 (de) |
| GR (1) | GR851472B (de) |
| MX (1) | MX158353A (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2602937B1 (fr) * | 1986-08-05 | 1988-11-10 | Thomson Csf | Dispositif de regulation de la puissance crete fournie par la chaine d'amplification d'un emetteur radioelectrique |
| US5278519A (en) * | 1991-11-13 | 1994-01-11 | Ericsson Ge Mobile Communications Inc. | Method and apparatus for controlling RF spectral splatter into adjacent channels when activating an RF transmitter |
| JP2001230644A (ja) * | 2000-02-18 | 2001-08-24 | Matsushita Electric Ind Co Ltd | 自動利得制御装置及び方法、並びに自動利得制御機能を備える無線通信装置 |
| CN102170653A (zh) * | 2011-04-29 | 2011-08-31 | 中兴通讯股份有限公司 | 基站射频系统和功放的保护方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2952816A (en) * | 1955-10-21 | 1960-09-13 | Gen Electric | Limiting amplifier |
| DE2618524C3 (de) * | 1976-04-28 | 1980-08-14 | Neumann Elektronik Gmbh, 4330 Muelheim | Schaltungsanordnung zur Austastung von Störimpulsen |
| US4398061A (en) * | 1981-09-22 | 1983-08-09 | Thomson-Csf Broadcast, Inc. | Audio processing apparatus and method |
| US4434440A (en) * | 1981-11-24 | 1984-02-28 | Rca Corporation | FM/TV Transmission system |
| US4574248A (en) * | 1984-05-07 | 1986-03-04 | Rockwell International Corporation | RF Power amplifier for use with VHF transceivers |
-
1984
- 1984-06-18 FR FR8409479A patent/FR2566206B1/fr not_active Expired - Lifetime
-
1985
- 1985-06-11 AT AT85401150T patent/ATE39203T1/de not_active IP Right Cessation
- 1985-06-11 EP EP85401150A patent/EP0172042B1/de not_active Expired
- 1985-06-11 DE DE8585401150T patent/DE3566761D1/de not_active Expired
- 1985-06-14 CA CA000484069A patent/CA1238367A/en not_active Expired
- 1985-06-17 AR AR85300727A patent/AR242472A1/es active
- 1985-06-17 US US06/745,628 patent/US4660003A/en not_active Expired - Fee Related
- 1985-06-17 GR GR851472A patent/GR851472B/el unknown
- 1985-06-17 DK DK272385A patent/DK168975B1/da active
- 1985-06-17 JP JP60131613A patent/JPS6113716A/ja active Granted
- 1985-06-18 MX MX205691A patent/MX158353A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2566206B1 (fr) | 1990-07-13 |
| US4660003A (en) | 1987-04-21 |
| GR851472B (de) | 1985-11-25 |
| CA1238367A (en) | 1988-06-21 |
| AR242472A1 (es) | 1993-03-31 |
| FR2566206A1 (fr) | 1985-12-20 |
| MX158353A (es) | 1989-01-26 |
| ATE39203T1 (de) | 1988-12-15 |
| JPH0140534B2 (de) | 1989-08-29 |
| EP0172042B1 (de) | 1988-12-07 |
| DK272385D0 (da) | 1985-06-17 |
| DK272385A (da) | 1985-12-19 |
| EP0172042A1 (de) | 1986-02-19 |
| DE3566761D1 (en) | 1989-01-12 |
| JPS6113716A (ja) | 1986-01-22 |
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