BE654966A - - Google Patents

Info

Publication number: BE654966A
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.)

1963-10-30

Filing date

1964-10-28

Publication date

1965-02-15

1964-10-28 Application filed filed Critical

1965-02-15 Publication of BE654966A publication Critical patent/BE654966A/xx

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
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
- H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/76—Compensating for differences in line impedance

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Multimedia (AREA)
Amplifiers (AREA)

BE654966D 1963-10-30 1964-10-28 BE654966A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE1195363		1963-10-30

Publications (1)

Publication Number	Publication Date
BE654966A true BE654966A (en)	1965-02-15

Family

ID=20294891

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE654966D BE654966A (en)	1963-10-30	1964-10-28

Country Status (3)

Country	Link
BE (1)	BE654966A (en)
GB (1)	GB1015824A (en)
NL (1)	NL6412481A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2946306A1 (en) *	1979-11-16	1981-05-21	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	AMPLIFIER CIRCUIT WITH VOGEBLE AC INTERNAL RESISTANCE

1964
- 1964-10-27 NL NL6412481A patent/NL6412481A/xx unknown
- 1964-10-28 BE BE654966D patent/BE654966A/xx unknown
- 1964-10-30 GB GB4444864A patent/GB1015824A/en not_active Expired

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2946306A1 (en) *	1979-11-16	1981-05-21	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	AMPLIFIER CIRCUIT WITH VOGEBLE AC INTERNAL RESISTANCE
EP0029134A1 (en) *	1979-11-16	1981-05-27	Licentia Patent-Verwaltungs-GmbH	Amplifier circuit of predeterminable AC internal resistance

Also Published As

Publication number	Publication date
NL6412481A (en)	1965-05-03
GB1015824A (en)	1966-01-05

Publication	Publication Date	Title
AT260747B (en)	1968-03-25
BE627012A (en)
BE612803A (en)
BE644618A (en)	1964-07-01
NL6412481A (en)	1965-05-03
BE645850A (en)	1964-09-28
BE645810A (en)	1964-07-16
BE644968A (en)	1964-09-10
BE614220A (en)
BE643145A (en)	1964-05-15
BE642174A (en)	1964-07-07
BE639993A (en)
BE632691A (en)
BE627172A (en)
BE627151A (en)
BE627145A (en)
BE627141A (en)
BE627083A (en)
BE627025A (en)
BE627023A (en)
BE626986A (en)
BE626938A (en)
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