Telecommunications – Radiotelephone system – Out-of-range indication
Reexamination Certificate
2005-08-23
2005-08-23
Gesesse, Tilahun (Department: 2684)
Telecommunications
Radiotelephone system
Out-of-range indication
C455S067700, C455S226400
Reexamination Certificate
active
06934538
ABSTRACT:
A portable telephone radio unit is disclosed which allows a user to recognize an incomplete state of data communication which occurs with a terminal equipment because of deterioration of the communication state by radio wave interference upon channel changing over in the course of a standby channel selection operation or during communication. A signal processing section performs information analysis of a signal selected by a control circuit section from among reception signals of an antenna whose levels are measured by a radio circuit section upon channel changing over in the course of a standby channel selection operation or during communication. The control circuit section detects loss of frame synchronization, deterioration in bit error rate, unfavorable reception of broadcast information or interruption of radio waves which is a condition of radio wave interference. Then, if a waiting condition is not satisfied, then the control circuit section controls a warning display section to display a warning of radio wave interference. The radio wave interference warning is erased when the cause of the radio wave interference disappears.
REFERENCES:
patent: 5134708 (1992-07-01), Marui et al.
patent: 5257400 (1993-10-01), Yoshida
patent: 5289178 (1994-02-01), Schwendeman
patent: 5373548 (1994-12-01), McCarthy
patent: 5383221 (1995-01-01), Akita et al.
patent: 5450613 (1995-09-01), Takahara et al.
patent: 5451839 (1995-09-01), Rappaport et al.
patent: 5467341 (1995-11-01), Matsukane et al.
patent: 5535425 (1996-07-01), Watanabe
patent: 5722068 (1998-02-01), Bartle et al.
patent: 5765113 (1998-06-01), Russo et al.
patent: 5805666 (1998-09-01), Ishizuka et al.
patent: 5809414 (1998-09-01), Coverdale et al.
patent: 5937348 (1999-08-01), Cina et al.
patent: 5960335 (1999-09-01), Umemoto et al.
patent: 5966656 (1999-10-01), Elkin et al.
patent: 5991901 (1999-11-01), Mulford et al.
patent: 6073024 (2000-06-01), Hasegawa
patent: 6078816 (2000-06-01), Weiss et al.
patent: 6131046 (2000-10-01), Sano et al.
patent: 6219540 (2001-04-01), Besharat et al.
patent: 6243568 (2001-06-01), Detlef et al.
patent: 6311049 (2001-10-01), Yoshizawa
patent: 6393307 (2002-05-01), Kim
patent: 6466568 (2002-10-01), Raith et al.
patent: 6556822 (2003-04-01), Matsumoto
patent: 0583172 (1993-08-01), None
patent: 2307623 (1997-05-01), None
patent: 2330493 (1999-04-01), None
patent: 2339647 (2000-02-01), None
patent: 8-51394 (1996-02-01), None
patent: 11-69455 (1999-03-01), None
patent: 2000261370 (2000-09-01), None
RCR STD-27, “Personal Digital Cellular Telecommunication System”, Corporation of Association of Radio Wave Industry, p. 834-838.
Japanese Patent Office Office Action mailed Jul. 10, 2002; English translation of relevent portions.
Chinese Office Action dated Jan. 31, 2003.
English translation of Chinese Office Action dated Jan. 31, 2003.
Gesesse Tilahun
NEC Corporation
Whitham Curtis & Christofferson, PC
LandOfFree
Portable telephone set for detecting radio wave interference... 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 telephone set for detecting radio wave interference..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable telephone set for detecting radio wave interference... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3484110