NL7403286A - - Google Patents

Info

Publication number
NL7403286A
NL7403286A NL7403286A NL7403286A NL7403286A NL 7403286 A NL7403286 A NL 7403286A NL 7403286 A NL7403286 A NL 7403286A NL 7403286 A NL7403286 A NL 7403286A NL 7403286 A NL7403286 A NL 7403286A
Authority
NL
Netherlands
Application number
NL7403286A
Other versions
NL169809B (nl
NL169809C (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
Publication of NL7403286A publication Critical patent/NL7403286A/xx
Publication of NL169809B publication Critical patent/NL169809B/xx
Application granted granted Critical
Publication of NL169809C publication Critical patent/NL169809C/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Amplifiers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
NLAANVRAGE7403286,A 1973-03-12 1974-03-12 Luidsprekend telefoontoestel. NL169809C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA165,801A CA976677A (en) 1973-03-12 1973-03-12 Loudspeaking communication terminal apparatus and method of operation

Publications (3)

Publication Number Publication Date
NL7403286A true NL7403286A (enrdf_load_stackoverflow) 1974-09-16
NL169809B NL169809B (nl) 1982-03-16
NL169809C NL169809C (nl) 1982-08-16

Family

ID=4096059

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7403286,A NL169809C (nl) 1973-03-12 1974-03-12 Luidsprekend telefoontoestel.

Country Status (11)

Country Link
AU (1) AU476504B2 (enrdf_load_stackoverflow)
BE (1) BE812212A (enrdf_load_stackoverflow)
BR (1) BR7401879D0 (enrdf_load_stackoverflow)
CA (1) CA976677A (enrdf_load_stackoverflow)
FR (1) FR2221885B1 (enrdf_load_stackoverflow)
GB (1) GB1444828A (enrdf_load_stackoverflow)
IE (1) IE40708B1 (enrdf_load_stackoverflow)
IT (1) IT1025013B (enrdf_load_stackoverflow)
NL (1) NL169809C (enrdf_load_stackoverflow)
SE (1) SE400148B (enrdf_load_stackoverflow)
ZA (1) ZA741555B (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178548A (en) * 1976-10-04 1979-12-11 Geraldine E. Thompson Voice actuated mobile radio
DE2842369A1 (de) * 1978-09-28 1980-04-10 Siemens Ag Schaltungsanordnung fuer eine sprachgesteuerte lautfernsprechstation in fernmelde-, insbesondere fernsprechanlagen
GB2174578B (en) * 1985-05-04 1988-11-09 Stc Plc Loud speaking telephone
FI73341C (fi) * 1985-08-06 1987-09-10 Outel Oy Mellanfoerstaerkare som anvaends i tvaoledningsfoerbindelser i ett valbart telefonnaet samt foerfarande foer reglering av dess foerstaerkning.
CA1291837C (en) * 1987-07-15 1991-11-05 Juro Ohga Electronic telephone terminal having noise suppression function

Also Published As

Publication number Publication date
AU6657974A (en) 1975-09-18
NL169809B (nl) 1982-03-16
AU476504B2 (en) 1976-09-23
FR2221885A1 (enrdf_load_stackoverflow) 1974-10-11
ZA741555B (en) 1975-02-26
CA976677A (en) 1975-10-21
BR7401879D0 (pt) 1974-11-19
IE40708B1 (en) 1979-08-01
BE812212A (fr) 1974-07-31
IT1025013B (it) 1978-08-10
DE2411501A1 (de) 1974-10-10
FR2221885B1 (enrdf_load_stackoverflow) 1982-04-23
GB1444828A (enrdf_load_stackoverflow) 1976-08-04
SE400148B (sv) 1978-03-13
NL169809C (nl) 1982-08-16
DE2411501B2 (de) 1975-08-21

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee