SE7800213L - TELEPHONE - Google Patents

TELEPHONE

Info

Publication number
SE7800213L
SE7800213L SE7800213A SE7800213A SE7800213L SE 7800213 L SE7800213 L SE 7800213L SE 7800213 A SE7800213 A SE 7800213A SE 7800213 A SE7800213 A SE 7800213A SE 7800213 L SE7800213 L SE 7800213L
Authority
SE
Sweden
Prior art keywords
telephone
Prior art date
Application number
SE7800213A
Other languages
Swedish (sv)
Other versions
SE416510B (en
Inventor
R Botros
C D Lafrance
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of SE7800213L publication Critical patent/SE7800213L/en
Publication of SE416510B publication Critical patent/SE416510B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Telephone Set Structure (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Catalysts (AREA)
SE7800213A 1977-01-14 1978-01-09 PHONE DEVICE FOR USE IN A CONFERENCE ROOM SE416510B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA269,735A CA1050154A (en) 1977-01-14 1977-01-14 Telephone conferencing apparatus

Publications (2)

Publication Number Publication Date
SE7800213L true SE7800213L (en) 1978-07-15
SE416510B SE416510B (en) 1981-01-05

Family

ID=4107730

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7800213A SE416510B (en) 1977-01-14 1978-01-09 PHONE DEVICE FOR USE IN A CONFERENCE ROOM

Country Status (12)

Country Link
JP (1) JPS5389606A (en)
BE (1) BE862702A (en)
CA (1) CA1050154A (en)
DE (1) DE2800882C2 (en)
DK (1) DK5678A (en)
ES (1) ES465952A1 (en)
FR (1) FR2377735A1 (en)
GB (1) GB1587549A (en)
IT (1) IT1089288B (en)
NL (1) NL7714104A (en)
NO (1) NO780126L (en)
SE (1) SE416510B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61242499A (en) * 1985-04-19 1986-10-28 シユア・ブラザ−ズ・インコ−ポレイテツド Microphone apparatus
FR2617660B1 (en) * 1987-06-30 1990-06-08 Larvor Rene SOUND RECORDING AND RESTITUTION DEVICE, PARTICULARLY FOR AUDIO-CONFERENCES
DE3734447C1 (en) * 1987-10-12 1989-05-18 Telefonbau & Normalzeit Gmbh Conference speakerphone
FR2670351B1 (en) * 1990-12-05 1997-04-30 France Etat SOUND RECORDING AND RESTITUTING APPARATUS.
FR2702918B1 (en) * 1993-03-19 1995-05-12 Prescom Sarl Sound recording and reproducing apparatus, and its application to audio conference.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH400245A (en) * 1965-10-02 1965-10-15 Peiker Heinrich Facility for two-way communication

Also Published As

Publication number Publication date
DK5678A (en) 1978-07-15
FR2377735B3 (en) 1980-10-24
GB1587549A (en) 1981-04-08
DE2800882A1 (en) 1978-07-20
JPS5389606A (en) 1978-08-07
BE862702A (en) 1978-07-06
SE416510B (en) 1981-01-05
CA1050154A (en) 1979-03-06
DE2800882C2 (en) 1985-02-28
NO780126L (en) 1978-07-17
JPS6133314B2 (en) 1986-08-01
NL7714104A (en) 1978-07-18
IT1089288B (en) 1985-06-18
ES465952A1 (en) 1978-09-16
FR2377735A1 (en) 1978-08-11

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