Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention
Reexamination Certificate
2011-03-08
2011-03-08
Lu, Zhiyu (Department: 2618)
Telecommunications
Transmitter and receiver at same station
With transmitter-receiver switching or interaction prevention
C455S073000, C455S552100, C455S553100, C333S101000, C333S134000, C333S103000, C333S174000, C333S175000
Reexamination Certificate
active
07904030
ABSTRACT:
For example, in a conventional high frequency switch used for a mobile phone and so on, high frequency distortion is caused by a diode which is turned off upon transmission. A high frequency switch includes a switch circuit for switching transmission and reception performed via a transmitting terminal and receiving terminals, said switch circuit having a diode turned off upon transmission, and a low-pass filter for suppressing high frequency distortion caused by the diode upon transmission.
REFERENCES:
patent: 4378536 (1983-03-01), Schwarzmann
patent: 4612571 (1986-09-01), Moon
patent: 6060960 (2000-05-01), Tanaka et al.
patent: 6165866 (2000-12-01), Kobayashi
patent: 6417461 (2002-07-01), Hirahara et al.
patent: 6442376 (2002-08-01), Furutani et al.
patent: 6448868 (2002-09-01), Kato et al.
patent: 6560444 (2003-05-01), Imberg
patent: 6633748 (2003-10-01), Watanabe et al.
patent: 6987984 (2006-01-01), Kemmochi et al.
patent: 7003312 (2006-02-01), Kemmochi et al.
patent: 2002/0127973 (2002-09-01), Furutani et al.
patent: 0 998 035 (2000-05-01), None
patent: 1 003 291 (2000-05-01), None
patent: 10-032521 (1998-02-01), None
patent: 11-274876 (1999-10-01), None
patent: 2000-165274 (2000-06-01), None
patent: 2000-183780 (2000-06-01), None
patent: 2000-201097 (2000-07-01), None
patent: 2002-208872 (2002-07-01), None
patent: WO 00/38341 (2000-06-01), None
patent: WO 02/01741 (2002-01-01), None
International Search Report corresponding to application No. PCT/JP02/02951 dated Feb. 13, 2003.
Shin'ya Nakai, “The Hotline”, vol. 21, Apr. 1998 (with partial English translation).
Nakakubo Hideaki
Tanaka Masaharu
Uriu Kazuhide
Yamada Toru
Lu Zhiyu
Panasonic Corporation
RatnerPrestia
LandOfFree
High frequency switch, radio communication apparatus, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High frequency switch, radio communication apparatus, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High frequency switch, radio communication apparatus, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2687159