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- Google Patents
AU108710B2 - Improvements in and relating to electrical communication systems involving automatic gain control apparatus
- Google Patents
Improvements in and relating to electrical communication systems involving automatic gain control apparatus
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.)
Active
Application number
AU4309/38A
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.)
Telephone Manuhactiking Co Ltd
Original Assignee
Telephone Manuhactiking Co Ltd
Publication of AU108710B2publicationCriticalpatent/AU108710B2/en
Apparatus and method for providing telephone user with control of threshold volume at which user's voice will take control of half-duplex speakerphone conversation