BE537877A - - Google Patents
Info
- Publication number
- BE537877A BE537877A BE537877DA BE537877A BE 537877 A BE537877 A BE 537877A BE 537877D A BE537877D A BE 537877DA BE 537877 A BE537877 A BE 537877A
- Authority
- BE
- Belgium
Links
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/12—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being glow discharge tubes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/066—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode particular circuits having a special characteristic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/40056—Circuits for driving or energising particular reading heads or original illumination means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB12930/54A GB763279A (en) | 1954-05-04 | 1954-05-04 | Improvements in or relating to circuits for providing a variable bias potential |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE537877A true BE537877A (xx) |
Family
ID=10013742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE537877D BE537877A (xx) | 1954-05-04 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2954428A (xx) |
| BE (1) | BE537877A (xx) |
| CH (1) | CH333689A (xx) |
| DE (1) | DE1035193B (xx) |
| FR (1) | FR1135759A (xx) |
| GB (1) | GB763279A (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54130828A (en) * | 1978-03-31 | 1979-10-11 | Canon Inc | Photo sensor array device and image scanner using it |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1499078A (en) * | 1921-03-16 | 1924-06-24 | Safety Car Heating & Lighting | Apparatus for obtaining a constant voltage |
| US1582060A (en) * | 1925-11-10 | 1926-04-27 | Lovejoy Dev Corp | Means for controlling the potential gradient in alpha conductor |
| DE674703C (de) * | 1934-12-17 | 1939-04-19 | Siemens & Halske Akt Ges | Schaltungsanordnung zum Ausgleich von durch Schwankungen der Betriebsspannungen hervorgerufenen AEnderungen des UEbertragungsmasses in Verstaerkern o. dgl. |
| DE843433C (de) * | 1948-10-02 | 1952-07-07 | Werke Appbau G M B H Deutsche | Spannungsteileranordnung zur Gewinnung einer von Belastungs-schwankungen an anderen Teilspannungen unabhaengigen Teilspannung |
| US2515763A (en) * | 1948-10-22 | 1950-07-18 | Gen Electric | Direct current restoration circuit for television |
| AT176243B (de) * | 1949-03-22 | 1953-09-25 | Philips Nv | Schaltung zur Umkehrung des Vorzeichens des Differentialquotienten des Spannungsverlaufes einer veränderlichen Spannung |
| US2794850A (en) * | 1951-02-28 | 1957-06-04 | Western Union Telegraph Co | Compensated phototube amplifier |
-
0
- BE BE537877D patent/BE537877A/xx unknown
-
1954
- 1954-05-04 GB GB12930/54A patent/GB763279A/en not_active Expired
-
1955
- 1955-03-23 US US496280A patent/US2954428A/en not_active Expired - Lifetime
- 1955-03-28 FR FR1135759D patent/FR1135759A/fr not_active Expired
- 1955-04-14 CH CH333689D patent/CH333689A/de unknown
- 1955-04-29 DE DEC11151A patent/DE1035193B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CH333689A (de) | 1958-10-31 |
| GB763279A (en) | 1956-12-12 |
| US2954428A (en) | 1960-09-27 |
| DE1035193B (de) | 1958-07-31 |
| FR1135759A (fr) | 1957-05-03 |