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.)
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 Standard Electric Corp
Original Assignee
International Standard Electric 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 Standard Electric CorpfiledCriticalInternational Standard Electric Corp
Publication of FR2200713A1publicationCriticalpatent/FR2200713A1/fr
Priority to AU73408/74ApriorityCriticalpatent/AU489416B2/en
Application grantedgrantedCritical
Publication of FR2200713B3publicationCriticalpatent/FR2200713B3/fr
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)