Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2007-03-06
2007-03-06
Anderson, Matthew D. (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S569100, C455S575100, C455S090300, C379S433010, C379S433030
Reexamination Certificate
active
10245901
ABSTRACT:
In a portable communication apparatus of the invention, an inner wall (22) of an openable/closable member (2) faces the front face of a diaphragm of a close-talking microphone (5) via a sound path (64), and an outer sound hole (27) faces the rear face of the diaphragm of the close-talking microphone (5) via a sound path (65). An inner sound hole (26) is biasedly located in a position which is close to a free end of the openable/closable member (2), and the outer sound hole (27) is biasedly located in a position which is close to the center position of opening and closing movements of the openable/closable member (2), thereby obtaining a speech quality of a very high S/N ratio at a substantially same degree in both the cases where the openable/closable member (2) is opened, and where the member is closed.
REFERENCES:
patent: 6389267 (2002-05-01), Imai
patent: 6751487 (2004-06-01), Rydbeck et al.
patent: 2001/0029198 (2001-10-01), Miyashita et al.
patent: 5-48451 (1993-06-01), None
patent: 5-85144 (1993-11-01), None
patent: H11-32107 (1999-02-01), None
patent: H11-177664 (1999-07-01), None
patent: H11-308314 (1999-11-01), None
Inubushi Toshiya
Kamimura Tomohiko
Nasu Koji
Noda Shushin
Saitou Kouji
Anderson Matthew D.
Hosiden Corporation
Koda & Androlia
Tran Tuan
LandOfFree
Portable communication apparatus and microphone device for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable communication apparatus and microphone device for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable communication apparatus and microphone device for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3744448