FR2704705B3 - Unité de source sonore utilisée en téléphonie. - Google Patents

Unité de source sonore utilisée en téléphonie.

Info

Publication number
FR2704705B3
FR2704705B3 FR9403207A FR9403207A FR2704705B3 FR 2704705 B3 FR2704705 B3 FR 2704705B3 FR 9403207 A FR9403207 A FR 9403207A FR 9403207 A FR9403207 A FR 9403207A FR 2704705 B3 FR2704705 B3 FR 2704705B3
Authority
FR
France
Prior art keywords
telephony
sound source
source unit
unit used
sound
Prior art date
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.)
Expired - Lifetime
Application number
FR9403207A
Other languages
English (en)
Other versions
FR2704705A3 (fr
Inventor
Baiker Stefan
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.)
Invoxia SA
Original Assignee
Ascom Business Systems AG
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 Ascom Business Systems AG filed Critical Ascom Business Systems AG
Publication of FR2704705A3 publication Critical patent/FR2704705A3/fr
Application granted granted Critical
Publication of FR2704705B3 publication Critical patent/FR2704705B3/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Dc-Dc Converters (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Optical Communication System (AREA)
  • Air Conditioning Control Device (AREA)
  • Electrophonic Musical Instruments (AREA)
FR9403207A 1993-03-18 1994-03-18 Unité de source sonore utilisée en téléphonie. Expired - Lifetime FR2704705B3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH82293A CH687281A5 (de) 1993-03-18 1993-03-18 Verfahren zum Ansteuern eines magnetischen Schallgebers.

Publications (2)

Publication Number Publication Date
FR2704705A3 FR2704705A3 (fr) 1994-11-04
FR2704705B3 true FR2704705B3 (fr) 1995-03-24

Family

ID=4196007

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9403207A Expired - Lifetime FR2704705B3 (fr) 1993-03-18 1994-03-18 Unité de source sonore utilisée en téléphonie.

Country Status (3)

Country Link
CH (1) CH687281A5 (fr)
DE (1) DE9402964U1 (fr)
FR (1) FR2704705B3 (fr)

Also Published As

Publication number Publication date
CH687281A5 (de) 1996-10-31
DE9402964U1 (de) 1994-04-14
FR2704705A3 (fr) 1994-11-04

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