BE411185A - - Google Patents

Info

Publication number: BE411185A
Authority: BE; Belgium

Application number

Priority date (The priority date 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 date listed.)

1934-09-18

Publication of BE411185A publication Critical patent/BE411185A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
- H04N5/18—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
- H04N5/185—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
- H04N5/165—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level to maintain the black level constant

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Video Image Reproduction Devices For Color Tv Systems (AREA)
Amplifiers (AREA)
Picture Signal Circuits (AREA)

BE411185D 1934-09-18 BE411185A (xx)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB26848/34A GB449242A (en)	1934-09-18	1934-09-18	Improvements in apparatus for amplifying electrical variations

Publications (1)

Publication Number	Publication Date
BE411185A true BE411185A (xx)

Family

ID=10250205

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE411185D BE411185A (xx)	1934-09-18

Country Status (6)

Country	Link
US (1)	US2190753A (xx)
BE (1)	BE411185A (xx)
DE (1)	DE882416C (xx)
FR (1)	FR794557A (xx)
GB (1)	GB449242A (xx)
NL (1)	NL46321C (xx)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB515363A (en) *	1938-05-30	1939-12-04	John Hardwick	Improvements in or relating to thermionic valve circuits
US2647161A (en) *	1947-09-17	1953-07-28	Motorola Inc	Double triode clamping circuit for direct current reinsertion
GB688195A (en) *	1948-02-11	1953-03-04	Emi Ltd	Improvements in or relating to television transmitting systems
GB688200A (en) *	1948-07-15	1953-03-04	Emi Ltd	Improvements relating to television transmitting systems
AT29106B (de) *	1948-08-10	1907-07-10	Alois Dichtl	Verfahren zur Herstellung eines Vertilgungsmittels für Ratten, Mäuse u. dgl.
US2609443A (en) *	1948-12-29	1952-09-02	Rca Corp	Keyed automatic gain control
GB666289A (en) *	1949-05-19	1952-02-06	Emi Ltd	Improvements in or relating to television transmission systems
BE505898A (xx) *	1950-09-20
GB709715A (en) *	1950-12-06	1954-06-02	Emi Ltd	Improvements relating to non-linear electrical circuits
NL82458C (xx) *	1951-12-05
US2708615A (en) *	1952-03-01	1955-05-17	Servo Corp	High-speed recorder
US2850627A (en) *	1952-12-08	1958-09-02	Philco Corp	System for maintaining predetermined portions of a signal at a predetermined value
BE535012A (xx) *	1954-01-23
NL103511C (xx) *	1955-01-12
US2913520A (en) *	1955-12-05	1959-11-17	Minnesota Mining & Mfg	Method of magnetically recording and reproducing television signals
FR2186793B1 (xx) *	1972-05-30	1977-01-14	Schlumberger Compteurs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL48119C (xx) *	1930-05-21
FR742835A (xx) *	1931-09-16	1933-03-17
AT133846B (de) *	1931-09-26	1933-06-26	Rca Corp	Verfahren und Einrichtung für das Fernsehen.
BE401713A (xx) *	1933-02-28

0
- NL NL46321D patent/NL46321C/xx active
- BE BE411185D patent/BE411185A/xx unknown
1934
- 1934-09-18 GB GB26848/34A patent/GB449242A/en not_active Expired
1935
- 1935-09-03 FR FR794557D patent/FR794557A/fr not_active Expired
- 1935-09-14 US US40532A patent/US2190753A/en not_active Expired - Lifetime
- 1935-09-17 DE DEE2344D patent/DE882416C/de not_active Expired

Also Published As

Publication number	Publication date
FR794557A (fr)	1936-02-20
DE882416C (de)	1953-07-09
GB449242A (en)	1936-06-18
US2190753A (en)	1940-02-20
NL46321C (xx)

Publication	Publication Date	Title
FR43599E (xx)	1934-07-11
FR759911A (xx)	1934-02-14
FR767636A (xx)	1934-07-20
FR767768A (xx)	1934-07-23
BE403563A (xx)
BE402391A (xx)	1934-05-31
BE412544A (xx)
NL46321C (xx)
BE401496A (xx)
BE410627A (xx)	1935-08-31
BE403408A (xx)
BE401514A (xx)
BE403386A (xx)	1934-06-30
BE403371A (xx)
BE403335A (xx)
BE403299A (xx)	1934-06-30
BE403266A (xx)
BE403253A (xx)
BE402976A (xx)
BE402957A (xx)
BE402931A (xx)	1934-06-30
BE402894A (xx)
BE402837A (xx)
BE402820A (xx)
BE402716A (xx)	1934-05-31