IT1138934B - CIRCUIT DEVICE HAVING AN ELECTRONICALLY CONTROLLABLE TRANSFER CHARACTERISTICS - Google Patents

CIRCUIT DEVICE HAVING AN ELECTRONICALLY CONTROLLABLE TRANSFER CHARACTERISTICS

Info

Publication number
IT1138934B
IT1138934B IT24315/81A IT2431581A IT1138934B IT 1138934 B IT1138934 B IT 1138934B IT 24315/81 A IT24315/81 A IT 24315/81A IT 2431581 A IT2431581 A IT 2431581A IT 1138934 B IT1138934 B IT 1138934B
Authority
IT
Italy
Prior art keywords
circuit device
transfer characteristics
electronically controllable
controllable transfer
electronically
Prior art date
Application number
IT24315/81A
Other languages
Italian (it)
Other versions
IT8124315A0 (en
Inventor
August Kilian Ernst
Graffenberger Wilhelm
Carel Dijkmans Eise
Johan Van Der Plassche Rudy
Original Assignee
Philips Nv
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.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Publication of IT8124315A0 publication Critical patent/IT8124315A0/en
Application granted granted Critical
Publication of IT1138934B publication Critical patent/IT1138934B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
IT24315/81A 1980-10-08 1981-10-05 CIRCUIT DEVICE HAVING AN ELECTRONICALLY CONTROLLABLE TRANSFER CHARACTERISTICS IT1138934B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3037986 1980-10-08
DE19813132402 DE3132402A1 (en) 1980-10-08 1981-08-17 CIRCUIT ARRANGEMENT WITH ELECTRONICALLY CONTROLLABLE TRANSMISSION BEHAVIOR

Publications (2)

Publication Number Publication Date
IT8124315A0 IT8124315A0 (en) 1981-10-05
IT1138934B true IT1138934B (en) 1986-09-17

Family

ID=25788351

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24315/81A IT1138934B (en) 1980-10-08 1981-10-05 CIRCUIT DEVICE HAVING AN ELECTRONICALLY CONTROLLABLE TRANSFER CHARACTERISTICS

Country Status (6)

Country Link
CA (1) CA1175505A (en)
DE (1) DE3132402A1 (en)
ES (1) ES506051A0 (en)
FR (1) FR2491696A1 (en)
GB (1) GB2085686B (en)
IT (1) IT1138934B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8201376A (en) * 1982-04-01 1983-11-01 Philips Nv CIRCUIT FOR AMPLIFYING AND / OR ATTENUATING A SIGNAL.
US4490843A (en) * 1982-06-14 1984-12-25 Bose Corporation Dynamic equalizing
DE3222607A1 (en) * 1982-06-16 1983-12-22 Philips Patentverwaltung Gmbh, 2000 Hamburg CIRCUIT ARRANGEMENT WITH SEVERAL SIGNAL PATHS, MADE BY ACTIVE CIRCUITS
GB2217539B (en) * 1988-04-14 1992-09-23 Plessey Co Plc Prescaler output filter
DE4015019A1 (en) * 1990-05-10 1991-11-14 Philips Patentverwaltung Audio circuit with electronically controlled transmission - has feedback amplifier followed by voltage divider with controlled tap-off switching
DE4114364A1 (en) * 1991-05-02 1992-11-12 Sgs Thomson Microelectronics DEVICE FOR APPROPRIATE VOLUME CONTROL
DE4431481A1 (en) * 1994-09-03 1996-03-07 Philips Patentverwaltung Circuit arrangement with controllable transmission behavior

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2262089C3 (en) * 1972-12-19 1975-10-30 Philips Patentverwaltung Gmbh, 2000 Hamburg Circuit arrangement for electronic frequency influencing, in particular electronic sound adjuster
DE2332211C3 (en) * 1973-06-25 1978-12-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Device for evaluating electrical signals
DE2629701A1 (en) * 1976-07-02 1978-01-05 Licentia Gmbh AMPLIFIER WITH CONTROLLABLE TRANSMISSION MEASUREMENT AND SWITCHABLE CONTROL CHARACTERISTIC
DE2647602A1 (en) * 1976-10-21 1978-04-27 Licentia Gmbh Band pass filter with variable attenuation in pass band - has differential amplifier with feedback circuit to inverting input
JPS54114159A (en) * 1978-02-27 1979-09-06 Mitsubishi Electric Corp Automatic gain control circuit
DE2847363C2 (en) * 1978-10-31 1982-06-09 Matth. Hohner Ag, 7218 Trossingen Transistor amplifier
DE2920056A1 (en) * 1979-05-18 1980-11-27 Blaupunkt Werke Gmbh Audio amplifier with frequency-dependent feed-back - has two feedback networks leading from output to inputs of pre-amplifying and output stages

Also Published As

Publication number Publication date
DE3132402C2 (en) 1988-06-01
ES8301400A1 (en) 1982-11-16
ES506051A0 (en) 1982-11-16
CA1175505A (en) 1984-10-02
GB2085686B (en) 1985-04-17
GB2085686A (en) 1982-04-28
FR2491696B1 (en) 1984-06-08
FR2491696A1 (en) 1982-04-09
IT8124315A0 (en) 1981-10-05
DE3132402A1 (en) 1982-05-27

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Effective date: 19961029