FR2013377A1 - - Google Patents

Info

Publication number
FR2013377A1
FR2013377A1 FR6920445A FR6920445A FR2013377A1 FR 2013377 A1 FR2013377 A1 FR 2013377A1 FR 6920445 A FR6920445 A FR 6920445A FR 6920445 A FR6920445 A FR 6920445A FR 2013377 A1 FR2013377 A1 FR 2013377A1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
FR6920445A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2013377A1 publication Critical patent/FR2013377A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/14—Control of transmission; Equalising characterised by the equalising network used
    • H04B3/141—Control of transmission; Equalising characterised by the equalising network used using multiequalisers, e.g. bump, cosine, Bode

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Filters And Equalizers (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR6920445A 1968-07-12 1969-06-19 Withdrawn FR2013377A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74439868A 1968-07-12 1968-07-12

Publications (1)

Publication Number Publication Date
FR2013377A1 true FR2013377A1 (fr) 1970-04-03

Family

ID=24992574

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6920445A Withdrawn FR2013377A1 (fr) 1968-07-12 1969-06-19

Country Status (5)

Country Link
US (1) US3539725A (fr)
JP (1) JPS495371B1 (fr)
DE (1) DE1934456A1 (fr)
FR (1) FR2013377A1 (fr)
GB (1) GB1215566A (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5033841B2 (fr) * 1971-08-11 1975-11-04
US3728649A (en) * 1972-04-24 1973-04-17 Bell Telephone Labor Inc Automatic equalizer for digital cable transmission systems
FR2203576A5 (fr) * 1972-10-18 1974-05-10 Cit Alcatel
US3818149A (en) * 1973-04-12 1974-06-18 Shalako Int Prosthetic device for providing corrections of auditory deficiencies in aurally handicapped persons
US4045748A (en) * 1975-12-19 1977-08-30 The Magnavox Company Audio control system
US4135590A (en) * 1976-07-26 1979-01-23 Gaulder Clifford F Noise suppressor system
US4227256A (en) * 1978-01-06 1980-10-07 Quadracast Systems, Inc. AM Broadcast tuner with automatic gain control
US4400583A (en) * 1979-07-20 1983-08-23 Metme Communications Complete audio processing system
JPS5696519A (en) * 1979-12-29 1981-08-04 Sony Corp Tone control circuit
US4340780A (en) * 1980-03-07 1982-07-20 Transcale Ab Self-correcting audio equalizer
US4540946A (en) * 1980-06-06 1985-09-10 National Research Development Corp. Variable characteristic filters
EP0583492B1 (fr) * 1992-07-31 1998-11-25 Aphex Systems, Ltd. Dispositif pour augmenter les basses fréquences dans un signal audio
US5539833A (en) * 1994-10-24 1996-07-23 Yamashita; Osamu Audio signal amplifier device
WO1998018203A1 (fr) * 1996-10-22 1998-04-30 Kakumoto Jun Ichi Intensificateur de formes d'ondes de signaux acoustiques et procede d'intensification associe
WO2003104924A2 (fr) 2002-06-05 2003-12-18 Sonic Focus, Inc. Moteur de realite virtuelle acoustique et techniques avancees pour l'amelioration d'un son delivre
US8045731B2 (en) * 2005-06-06 2011-10-25 Yamaha Corporation Sound quality adjustment device
DE102007024895B4 (de) * 2007-05-29 2015-08-27 Epcos Ag Multiband-Filter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1965720A (en) * 1931-05-14 1934-07-10 Communications Patents Inc Electrical distribution system
US2474191A (en) * 1947-06-06 1949-06-21 Avco Mfg Corp Tone control
BE646245A (fr) * 1963-04-08

Also Published As

Publication number Publication date
GB1215566A (en) 1970-12-09
DE1934456A1 (de) 1970-01-15
US3539725A (en) 1970-11-10
JPS495371B1 (fr) 1974-02-06

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Legal Events

Date Code Title Description
ST Notification of lapse