ES380292A1 - Improvements in signal amplitude control circuits. (Machine-translation by Google Translate, not legally binding) - Google Patents
Improvements in signal amplitude control circuits. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES380292A1 ES380292A1 ES380292A ES380292A ES380292A1 ES 380292 A1 ES380292 A1 ES 380292A1 ES 380292 A ES380292 A ES 380292A ES 380292 A ES380292 A ES 380292A ES 380292 A1 ES380292 A1 ES 380292A1
- Authority
- ES
- Spain
- Prior art keywords
- amplitude
- transistor
- signals
- translation
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/70—Circuits for processing colour signals for colour killing
- H04N9/71—Circuits for processing colour signals for colour killing combined with colour gain control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Networks Using Active Elements (AREA)
Abstract
Improvements in signal amplitude control circuits, of the type for varying the amplitude of electrical signals occupying a predetermined frequency band, without noticeable phase change of said signals when said amplitude is varied, comprising means that provide a source of input signals including resonant circuit means for choosing signals in said predetermined frequency band, characterized in that said circuits comprise a first transistor having base, emitter and collector electrodes, means connecting said transistor in a common base configuration, means comprising an impedance element that couples said input terminal the emitter to said input signal source voltage-sensitive impedance means coupled between said base and emitter electrodes of said first transistor and connected control means for supplying an amplitude voltage adjustable to these sensi impedance means bles to the voltage to control amplitude of the input signals fed to said transistor. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82951069A | 1969-06-02 | 1969-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES380292A1 true ES380292A1 (en) | 1972-09-01 |
Family
ID=25254742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES380292A Expired ES380292A1 (en) | 1969-06-02 | 1970-06-02 | Improvements in signal amplitude control circuits. (Machine-translation by Google Translate, not legally binding) |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS4824644B1 (en) |
| AT (1) | AT313390B (en) |
| BE (1) | BE751292A (en) |
| BR (1) | BR7019328D0 (en) |
| CA (1) | CA928419A (en) |
| DE (1) | DE2027033C3 (en) |
| ES (1) | ES380292A1 (en) |
| FR (1) | FR2045795B1 (en) |
| GB (1) | GB1304383A (en) |
| NL (1) | NL7007909A (en) |
| SE (1) | SE365694B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54175940U (en) * | 1978-05-30 | 1979-12-12 | ||
| JPS6048702U (en) * | 1983-09-07 | 1985-04-05 | 金子 秀男 | Boots with ventilation tubes |
| JPS61179101A (en) * | 1985-02-01 | 1986-08-11 | オ−シン商事株式会社 | Steam preventing device of boots |
-
1970
- 1970-05-12 CA CA082602A patent/CA928419A/en not_active Expired
- 1970-05-27 BR BR21932870A patent/BR7019328D0/en unknown
- 1970-05-28 GB GB2576670A patent/GB1304383A/en not_active Expired
- 1970-05-29 SE SE07426/70A patent/SE365694B/xx unknown
- 1970-06-01 FR FR7020046A patent/FR2045795B1/fr not_active Expired
- 1970-06-01 NL NL7007909A patent/NL7007909A/xx not_active Application Discontinuation
- 1970-06-01 BE BE751292D patent/BE751292A/en unknown
- 1970-06-02 JP JP4752470A patent/JPS4824644B1/ja active Pending
- 1970-06-02 AT AT494770A patent/AT313390B/en not_active IP Right Cessation
- 1970-06-02 DE DE19702027033 patent/DE2027033C3/en not_active Expired
- 1970-06-02 ES ES380292A patent/ES380292A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL7007909A (en) | 1970-12-04 |
| BE751292A (en) | 1970-11-16 |
| AT313390B (en) | 1974-02-11 |
| DE2027033A1 (en) | 1970-12-10 |
| FR2045795B1 (en) | 1974-03-01 |
| SE365694B (en) | 1974-03-25 |
| FR2045795A1 (en) | 1971-03-05 |
| DE2027033B2 (en) | 1974-03-28 |
| JPS4824644B1 (en) | 1973-07-23 |
| GB1304383A (en) | 1973-01-24 |
| DE2027033C3 (en) | 1974-10-24 |
| CA928419A (en) | 1973-06-12 |
| BR7019328D0 (en) | 1973-05-17 |
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