IT585477A - - Google Patents
Info
- Publication number
- IT585477A IT585477A IT585477DA IT585477A IT 585477 A IT585477 A IT 585477A IT 585477D A IT585477D A IT 585477DA IT 585477 A IT585477 A IT 585477A
- Authority
- IT
- Italy
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/02—Remote control of amplification, tone or bandwidth
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
- H03G1/0047—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using photo-electric elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/02—Indicating arrangements
- H03J1/04—Indicating arrangements with optical indicating means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Adjustable Resistors (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL879949X | 1957-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT585477A true IT585477A (US06573293-20030603-C00011.png) |
Family
ID=19851536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT585477D IT585477A (US06573293-20030603-C00011.png) | 1957-03-09 |
Country Status (9)
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3258601A (en) * | 1966-06-28 | Photosensitive variable resistance device | ||
| DE1201398B (de) * | 1959-11-27 | 1965-09-23 | Nordmende | Einrichtung zur kombinierten selbsttaetigen raum-lichtabhaengigen und fernbedienbaren Einstellung des Kontrastes und/oder der Helligkeit der Bildes bei einem Fernsehempfaenger |
| GB914860A (en) * | 1960-02-26 | 1963-01-09 | Ass Elect Ind | Improvements relating to variable electrical impedances |
| US3192387A (en) * | 1961-03-22 | 1965-06-29 | Robert M Goodman | Electro-optical device for producing a modulated voltage |
| US3235741A (en) * | 1961-04-24 | 1966-02-15 | Invac Corp | Switch |
| DE1254179B (de) * | 1961-04-24 | 1967-11-16 | Philips Patentverwaltung | Schaltungsanordnung zum Steuern eines Wechselstrom-Spannungsteilers durch Licht |
| DE1272341B (de) * | 1961-04-24 | 1968-07-11 | Philips Patentverwaltung | Einrichtung und Schaltungsanordnung mit einem lichtabhaengig gesteuerten, ein Wechselstromsignal fuehrenden Spannungsteiler in Fernsehgeraeten und sonstigen mit Bildsignalen arbeitenden Anlagen |
| US3289002A (en) * | 1961-04-25 | 1966-11-29 | Robert M Goodman | Electro-optical switching device using two photosensitive cells within an opaque housing |
| DE1175278B (de) * | 1961-05-26 | 1964-08-06 | Fernseh Gmbh | Anordnung zur AEnderung der Verstaerkung einer Verstaerkerstufe |
| US3171034A (en) * | 1961-12-21 | 1965-02-23 | Tomasulo Walter | Electro-optical control |
| US3202905A (en) * | 1962-01-02 | 1965-08-24 | Straza Ind | Remotely controlled attenuator devices |
| US3168619A (en) * | 1962-07-13 | 1965-02-02 | Bankers Trust Co | Two-way audio communication |
| US3389266A (en) * | 1963-01-26 | 1968-06-18 | Kabushika Kaisha Daikin Seisak | Apparatus for measuring minute velocity fluctuations |
| US3283157A (en) * | 1963-05-07 | 1966-11-01 | Instrumentation Labor Inc | Photomodulator for use with high gain d.c. amplifier |
| US3308303A (en) * | 1963-06-28 | 1967-03-07 | Brunswick Corp | Transducer system employing electro-optical means |
| US3365662A (en) * | 1963-07-18 | 1968-01-23 | Trw Inc | Ohmmeter having a constant current source including photovoltaic cell |
| US3409378A (en) * | 1963-12-28 | 1968-11-05 | Nippon Kogaku Kk | Multi-element exposure meter |
| US3521962A (en) * | 1964-06-19 | 1970-07-28 | Stanley Electric Co Ltd | Light responsive and measuring device |
| US3684374A (en) * | 1970-07-29 | 1972-08-15 | Humphrey Res Ass | Focus detector |
| JPS4967929U (US06573293-20030603-C00011.png) * | 1972-09-26 | 1974-06-13 | ||
| JPS59112233A (ja) * | 1982-11-26 | 1984-06-28 | ナショナル・リサ−チ・ディベロプメント・コ−ポレ−ション | 光ビ−ム特性測定装置 |
| GB2131227B (en) * | 1982-11-26 | 1987-01-07 | Walter Margulis | Apparatus for measuring light beam characteristics |
| US4573110A (en) * | 1984-09-28 | 1986-02-25 | Wang Laboratories, Inc. | Control device |
| DE19944025A1 (de) * | 1999-09-14 | 2001-03-15 | Siemens Ag | Veränderbarer Widerstand |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE155043C (US06573293-20030603-C00011.png) * | ||||
| US1602070A (en) * | 1923-02-12 | 1926-10-05 | Dragonetti Giovanni | Selenium cell without inertia |
| DE555832C (de) * | 1931-01-14 | 1932-07-28 | Josef Heitz | Masselose Steuerung eines Stufenwiderstandes |
| DE700878C (de) * | 1938-04-09 | 1941-01-02 | Aeg | Veraenderlicher elektrischer Widerstand |
| US2736848A (en) * | 1949-03-03 | 1956-02-28 | Rca Corp | Photocells |
| DE820015C (de) * | 1949-09-10 | 1951-11-08 | Siemens & Halske A G | Verstaerker |
| US2749501A (en) * | 1950-10-06 | 1956-06-05 | California Packing Corp | Photoelectric voltage regulator |
| US2706792A (en) * | 1951-05-25 | 1955-04-19 | Gen Electric | X-ray detection |
| US2961542A (en) * | 1956-11-02 | 1960-11-22 | Philco Corp | Radiation-detecting device and system |
-
0
- BE BE565502D patent/BE565502A/xx unknown
- CA CA626847A patent/CA626847A/en not_active Expired
- NL NL215236D patent/NL215236A/xx unknown
- IT IT585477D patent/IT585477A/it unknown
-
1958
- 1958-02-28 US US718322A patent/US3102227A/en not_active Expired - Lifetime
- 1958-03-05 DE DEN14751A patent/DE1093883B/de active Pending
- 1958-03-06 GB GB7250/58A patent/GB879949A/en not_active Expired
- 1958-03-07 JP JP591958A patent/JPS3816933B1/ja active Pending
- 1958-03-07 FR FR1201512D patent/FR1201512A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1201512A (fr) | 1959-12-30 |
| US3102227A (en) | 1963-08-27 |
| BE565502A (US06573293-20030603-C00011.png) | |
| CA626847A (en) | 1961-09-05 |
| NL215236A (US06573293-20030603-C00011.png) | |
| GB879949A (en) | 1961-10-11 |
| DE1093883B (de) | 1960-12-01 |
| JPS3816933B1 (US06573293-20030603-C00011.png) | 1963-09-04 |
