Telephonic communications – Terminal – Having loudspeaking conversation capability
Patent
1997-10-21
2000-01-18
Chiang, Jack
Telephonic communications
Terminal
Having loudspeaking conversation capability
379428, H04M 100
Patent
active
060163461
ABSTRACT:
The invention provides a speakerphone having a low-profile housing having an upward-oriented speaker on an upper surface of the housing and a downward-oriented microphone on a lower surface of the housing. The lower surface of the housing is domed, for example, a parabolic dome, enabling a low opening distance between the housing and a support surface on which the speakerphone rests, in turn, enabling a low housing profile. The speaker is retained by an elastic rubber cup member.
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Toshimasa Fujita et al., "Model S-1P Loudspeaker Telephone Set Design and Construction," Review of the Electrical Communication Laboratories, vol. 27, Numbers 5-6 (May-Jun. 1979), p. 372.
Annerino Frank J.
Chastain Scott A.
Dreher Mark R.
Rittmueller Stephen P.
3Com Corporation
Chiang Jack
LandOfFree
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