DE2209771C3 - Integrierte Schwellenschaltung für Fernsehempfänger - Google Patents
Integrierte Schwellenschaltung für FernsehempfängerInfo
- Publication number
- DE2209771C3 DE2209771C3 DE2209771A DE2209771A DE2209771C3 DE 2209771 C3 DE2209771 C3 DE 2209771C3 DE 2209771 A DE2209771 A DE 2209771A DE 2209771 A DE2209771 A DE 2209771A DE 2209771 C3 DE2209771 C3 DE 2209771C3
- Authority
- DE
- Germany
- Prior art keywords
- transistor
- base
- circuit
- diode
- emitter
- 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
- 238000010586 diagram Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 230000033228 biological regulation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 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
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/52—Automatic gain control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
- Television Receiver Circuits (AREA)
- Bipolar Integrated Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7103018,A NL170084C (nl) | 1971-03-06 | 1971-03-06 | Televisieontvanger met een geintegreerde schakeling voor het leveren van twee versterkingsregelspanningen. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2209771A1 DE2209771A1 (de) | 1972-09-14 |
| DE2209771B2 DE2209771B2 (de) | 1977-12-29 |
| DE2209771C3 true DE2209771C3 (de) | 1978-08-24 |
Family
ID=19812632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2209771A Expired DE2209771C3 (de) | 1971-03-06 | 1972-03-01 | Integrierte Schwellenschaltung für Fernsehempfänger |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3813603A (OSRAM) |
| JP (1) | JPS5335414B1 (OSRAM) |
| AT (1) | AT325120B (OSRAM) |
| BE (1) | BE780284A (OSRAM) |
| DE (1) | DE2209771C3 (OSRAM) |
| ES (1) | ES400456A1 (OSRAM) |
| FR (1) | FR2128646B1 (OSRAM) |
| GB (1) | GB1374540A (OSRAM) |
| IT (1) | IT949867B (OSRAM) |
| NL (1) | NL170084C (OSRAM) |
| SE (1) | SE379139B (OSRAM) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7903625A (nl) * | 1979-05-09 | 1980-11-11 | Philips Nv | Televisiebeeldweergeefinrichting. |
| JPS5787244A (en) * | 1980-11-19 | 1982-05-31 | Toshiba Corp | Wide band television tuner |
| JPS58180242U (ja) * | 1982-05-27 | 1983-12-02 | 株式会社西海 | 帽子 |
| NL8502861A (nl) * | 1985-10-21 | 1987-05-18 | Philips Nv | Stroomdrempelschakeling. |
| US4870372A (en) * | 1988-05-20 | 1989-09-26 | At&E Corporation | AGC delay on an integrated circuit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH407238A (de) * | 1963-08-23 | 1966-02-15 | Siemens Ag Albis | Schaltungsanordnung zur Regelung des Verstärkungsgrades mehrerer gleicher Transistor-Wechselstrom-Verstärkerstufen |
| US3555182A (en) * | 1968-05-20 | 1971-01-12 | Rca Corp | Plural operating mode automatic gain control system |
-
1971
- 1971-03-06 NL NLAANVRAGE7103018,A patent/NL170084C/xx not_active IP Right Cessation
-
1972
- 1972-02-22 US US00228169A patent/US3813603A/en not_active Expired - Lifetime
- 1972-03-01 DE DE2209771A patent/DE2209771C3/de not_active Expired
- 1972-03-03 JP JP2270872A patent/JPS5335414B1/ja active Pending
- 1972-03-03 SE SE7202726A patent/SE379139B/xx unknown
- 1972-03-03 IT IT21397/72A patent/IT949867B/it active
- 1972-03-03 GB GB999672A patent/GB1374540A/en not_active Expired
- 1972-03-03 AT AT179272A patent/AT325120B/de not_active IP Right Cessation
- 1972-03-04 ES ES400456A patent/ES400456A1/es not_active Expired
- 1972-03-06 BE BE780284A patent/BE780284A/xx not_active IP Right Cessation
- 1972-03-06 FR FR7207652A patent/FR2128646B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES400456A1 (es) | 1974-12-16 |
| FR2128646A1 (OSRAM) | 1972-10-20 |
| NL7103018A (OSRAM) | 1972-09-08 |
| DE2209771B2 (de) | 1977-12-29 |
| BE780284A (fr) | 1972-09-06 |
| FR2128646B1 (OSRAM) | 1978-08-04 |
| IT949867B (it) | 1973-06-11 |
| NL170084B (nl) | 1982-04-16 |
| AT325120B (de) | 1975-10-10 |
| DE2209771A1 (de) | 1972-09-14 |
| US3813603A (en) | 1974-05-28 |
| JPS5335414B1 (OSRAM) | 1978-09-27 |
| NL170084C (nl) | 1982-09-16 |
| GB1374540A (en) | 1974-11-20 |
| SE379139B (OSRAM) | 1975-09-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |