IT1013490B - Perfezionamento nei circuiti di comando e controllo multicanale in particolare per sistemi radio o audio - Google Patents

Perfezionamento nei circuiti di comando e controllo multicanale in particolare per sistemi radio o audio

Info

Publication number
IT1013490B
IT1013490B IT51554/74A IT5155474A IT1013490B IT 1013490 B IT1013490 B IT 1013490B IT 51554/74 A IT51554/74 A IT 51554/74A IT 5155474 A IT5155474 A IT 5155474A IT 1013490 B IT1013490 B IT 1013490B
Authority
IT
Italy
Prior art keywords
radio
improvement
control circuits
audio systems
channel command
Prior art date
Application number
IT51554/74A
Other languages
English (en)
Italian (it)
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of IT1013490B publication Critical patent/IT1013490B/it

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
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/307—Frequency adjustment, e.g. tone control
IT51554/74A 1973-06-19 1974-06-17 Perfezionamento nei circuiti di comando e controllo multicanale in particolare per sistemi radio o audio IT1013490B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US371437A US3875334A (en) 1973-06-19 1973-06-19 Multi-channel control circuit with D-C operated control devices

Publications (1)

Publication Number Publication Date
IT1013490B true IT1013490B (it) 1977-03-30

Family

ID=23463996

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51554/74A IT1013490B (it) 1973-06-19 1974-06-17 Perfezionamento nei circuiti di comando e controllo multicanale in particolare per sistemi radio o audio

Country Status (7)

Country Link
US (1) US3875334A (ja)
JP (1) JPS5840367B2 (ja)
CA (1) CA998619A (ja)
DE (1) DE2429242A1 (ja)
GB (1) GB1461145A (ja)
HK (1) HK73779A (ja)
IT (1) IT1013490B (ja)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937885A (en) * 1974-09-06 1976-02-10 Motorola, Inc. Control circuit for a matrixed four channel audio reproducing system
JPS5234649U (ja) * 1975-09-03 1977-03-11
JPS5265644A (en) * 1975-11-26 1977-05-31 Matsushita Electric Ind Co Ltd Volume control circuit
US4045748A (en) * 1975-12-19 1977-08-30 The Magnavox Company Audio control system
JPS5313860A (en) * 1976-07-23 1978-02-07 Pioneer Electronic Corp Tone control device
US4113984A (en) * 1976-09-17 1978-09-12 General Motors Corporation Voltage translating circuit for volume and balance control of a four-channel audio system
US4076959A (en) * 1976-10-08 1978-02-28 General Motors Corporation Volume, tone and balance control for multi-channel audio systems
JPS5383553A (en) * 1976-12-29 1978-07-24 Matsushita Electric Ind Co Ltd Aural circuit
US4070633A (en) * 1977-03-10 1978-01-24 Motorola Inc. Remote controlled amplifier
JPS5760714A (en) * 1980-09-29 1982-04-12 Toshiba Corp Adjusting device for frequency characteristic
US4404527A (en) * 1980-11-03 1983-09-13 General Motors Corporation Bridge audio amplifier including low level fade control
FR2501935B1 (fr) * 1981-03-13 1985-09-13 Thomson Csf Circuit de commande de volume et de tonalite incorporant une correction physiologique sans filtre supplementaire
US4466118A (en) * 1983-02-01 1984-08-14 Motorola, Inc. Dual range audio level control
JPS6022265U (ja) * 1983-07-25 1985-02-15 株式会社　ジエ−アンドエム ドライバ
DE3627056A1 (de) * 1986-08-09 1988-02-18 Thomson Brandt Gmbh Schaltung zur dynamik-kompression oder -expansion in einem nutzsignalweg
CH686753A5 (de) * 1993-07-19 1996-06-14 Yair Dr Schiftan Elektronische Vorrichtung zur Erzeugung von akustischen raeuumlichen Effekten.
CA2394286C (en) * 1999-12-22 2007-09-25 Musikproduction Dabringhaus Und Grimm Ohg Method and arrangement for recording and playing back sounds
JP2002142300A (ja) * 2000-11-06 2002-05-17 Pioneer Electronic Corp 音場形成回路および音場形成装置
US8411877B2 (en) * 2009-10-13 2013-04-02 Conexant Systems, Inc. Tuning and DAC selection of high-pass filters for audio codecs
JP5327481B2 (ja) * 2011-01-13 2013-10-30 オンキヨー株式会社 トーンコントロール装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466572A (en) * 1965-10-14 1969-09-09 Automatic Elect Lab Apparatus for regulating signals in response to their total root mean square value
US3631365A (en) * 1968-11-01 1971-12-28 Dolby Laboratories Inc Signal compressors and expanders
US3725583A (en) * 1970-07-20 1973-04-03 Motorola Inc Volume and tone control for multi-channel audio systems
US3752928A (en) * 1971-03-04 1973-08-14 D Flickinger Amplifier system utilizing regenerative and degenerative feedback to shape the frequency response
DE2262089C3 (de) * 1972-12-19 1975-10-30 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur elektronischen Frequenzbeeinflussung, insbesondere elektronischer Klangeinsteller

Also Published As

Publication number Publication date
HK73779A (en) 1979-10-26
DE2429242A1 (de) 1975-01-16
JPS5037401A (ja) 1975-04-08
GB1461145A (en) 1977-01-13
JPS5840367B2 (ja) 1983-09-05
CA998619A (en) 1976-10-19
US3875334A (en) 1975-04-01

Similar Documents

Publication Publication Date Title
IT1013490B (it) Perfezionamento nei circuiti di comando e controllo multicanale in particolare per sistemi radio o audio
CA926047A (en) Broad band radio relay system
IT953204B (it) Perfezionamento nei circuiti di controllo e regolazione di sistemi di riproduzione quadrifonica del suono
CH529358A (de) Vielkanal-Verstärkersystem
IT1074921B (it) Perezionamento nei circuiti di controllo per freni di veicoli
ZA707726B (en) Control system for stacking equipment
IT982689B (it) Amplificatori per circuiti di comando e di regolazione
IT1040988B (it) Perfezionamento nei sistemi di comando idraulici
ZA708512B (en) Stage control system
IT988209B (it) Perfezionamenti nei sistemi di comando
CH518040A (de) Drahtfunkanlage
CH512161A (de) Drahtfunkanlage
IT1053412B (it) Perfezionamento nei sistemi radar
CA927290A (en) Tape reader and control system
AU283360B2 (en) Boning rail system
AU261616B2 (en) Improvements in traffic control systems
CA815178A (en) Tapeless carriage control system
AU3902463A (en) Boning rail system
AU3111663A (en) Improvements in traffic control systems
CA823902A (en) Ventilation control
AU283901B2 (en) Improvements in airconditioning systems
CA661948A (en) Viscosity control system and apparatus
CH516245A (de) Tonfrequenz-Rundsteuerverfahren und statischer Tonfrequenz-Rundsteuer-Empfänger zur Durchführung des Verfahrens
CA658961A (en) Ventilating tunnel
CA709175A (en) Trackway corner rails