NL7116826A - - Google Patents

Info

Publication number
NL7116826A
NL7116826A NL7116826A NL7116826A NL7116826A NL 7116826 A NL7116826 A NL 7116826A NL 7116826 A NL7116826 A NL 7116826A NL 7116826 A NL7116826 A NL 7116826A NL 7116826 A NL7116826 A NL 7116826A
Authority
NL
Netherlands
Application number
NL7116826A
Other versions
NL155700B (nl
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 filed Critical
Priority to NL7116826A priority Critical patent/NL155700B/xx
Priority to DE19722258415 priority patent/DE2258415C3/de
Priority to GB5604972A priority patent/GB1367707A/en
Priority to JP12195172A priority patent/JPS5331326B2/ja
Priority to NO446372A priority patent/NO133988C/no
Priority to FR7243575A priority patent/FR2164357A5/fr
Publication of NL7116826A publication Critical patent/NL7116826A/xx
Publication of NL155700B publication Critical patent/NL155700B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Polyamides (AREA)
  • Circuit For Audible Band Transducer (AREA)
NL7116826A 1971-12-08 1971-12-08 Luidsprekende telefooninrichting. NL155700B (nl)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL7116826A NL155700B (nl) 1971-12-08 1971-12-08 Luidsprekende telefooninrichting.
DE19722258415 DE2258415C3 (de) 1971-12-08 1972-11-29 Lautsprech Telephongerät
GB5604972A GB1367707A (en) 1971-12-08 1972-12-05 Loudspeaking telephone
JP12195172A JPS5331326B2 (enrdf_load_stackoverflow) 1971-12-08 1972-12-05
NO446372A NO133988C (enrdf_load_stackoverflow) 1971-12-08 1972-12-05
FR7243575A FR2164357A5 (enrdf_load_stackoverflow) 1971-12-08 1972-12-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7116826A NL155700B (nl) 1971-12-08 1971-12-08 Luidsprekende telefooninrichting.

Publications (2)

Publication Number Publication Date
NL7116826A true NL7116826A (enrdf_load_stackoverflow) 1973-06-13
NL155700B NL155700B (nl) 1978-01-16

Family

ID=19814643

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7116826A NL155700B (nl) 1971-12-08 1971-12-08 Luidsprekende telefooninrichting.

Country Status (6)

Country Link
JP (1) JPS5331326B2 (enrdf_load_stackoverflow)
DE (1) DE2258415C3 (enrdf_load_stackoverflow)
FR (1) FR2164357A5 (enrdf_load_stackoverflow)
GB (1) GB1367707A (enrdf_load_stackoverflow)
NL (1) NL155700B (enrdf_load_stackoverflow)
NO (1) NO133988C (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO134477C (enrdf_load_stackoverflow) * 1974-10-29 1976-10-13 Manus Max
JPS5824063B2 (ja) * 1977-11-14 1983-05-19 東亜特殊電機株式会社 拡声電話機
JPS5469308A (en) * 1977-11-14 1979-06-04 Toa Electric Co Ltd Audio switch
US4229625A (en) * 1978-12-29 1980-10-21 Bell Telephone Laboratories, Incorporated Repeater level control circuit
US4346261A (en) * 1980-03-17 1982-08-24 United Networks, Inc. Speaker phones
DE3034569C2 (de) * 1980-09-10 1983-10-27 Siemens AG, 1000 Berlin und 8000 München Sprachgesteuerte Lautfernsprechanlage
DD154419A1 (de) * 1980-12-23 1982-03-17 Helmut Kammholz Schaltungsanordnung fuer einen fernsprechapparat mit mithoer-und freisprecheinrichtung
FR2578127A1 (fr) * 1985-02-27 1986-08-29 Jeumont Schneider Procede et dispositif pour la commande d'un poste telephonique a main libre fonctionnant en alternat
GB2197166A (en) * 1986-11-07 1988-05-11 Storno As Controlling gain in speech-controlled telephones
FR2610772B2 (fr) * 1987-02-10 1989-04-28 Telephonie Ind Commerciale Dispositif anti-effet larsen pour poste telephonique

Also Published As

Publication number Publication date
DE2258415C3 (de) 1980-06-12
NL155700B (nl) 1978-01-16
NO133988B (enrdf_load_stackoverflow) 1976-04-20
DE2258415A1 (de) 1973-06-14
JPS5331326B2 (enrdf_load_stackoverflow) 1978-09-01
GB1367707A (en) 1974-09-18
DE2258415B2 (de) 1979-09-20
JPS4866310A (enrdf_load_stackoverflow) 1973-09-11
FR2164357A5 (enrdf_load_stackoverflow) 1973-07-27
NO133988C (enrdf_load_stackoverflow) 1976-07-28

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: PHILIPS