Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2004-09-01
2008-08-12
D'Agosta, Stephen M (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S067130, C455S404200, C455S414200, C455S421000, C455S456100, C455S455000, C455S510000, C455S553100, C455S574000
Reexamination Certificate
active
07412263
ABSTRACT:
The invention provides an advisory alert indicating conditions are such that an ongoing telephone call involving a cellular telephone may be dropped due to insufficient signal strength. A decrease in signal strength over time that exceeds a specified percentage decrease provides the primary basis for triggering the advisory alert. This advisory alert warns one or more participants of the call of the possibility of the call ending due to low signal strength. The advisory alert provides for conclusion of the call before the call is lost, and/or lowers the frustration level associated with a call lost for an unknown reason.In operation, signal strength is assessed during a series of time intervals. Signal strength of consecutive time intervals is compared. If the percentage drop in signal strength exceeds a specified percentage, an advisory alert is effectuated. The criteria that trigger an advisory alert may be non-programmable, or is modifiable in programmable embodiments.
REFERENCES:
patent: 5193216 (1993-03-01), Davis
patent: 5203011 (1993-04-01), Bane et al.
patent: 5471671 (1995-11-01), Wang et al.
patent: 5530926 (1996-06-01), Rozanski
patent: 5812056 (1998-09-01), Law
patent: 6018655 (2000-01-01), Bartle et al.
patent: 6119012 (2000-09-01), Amirijoo
patent: 6597929 (2003-07-01), Han et al.
patent: 6691029 (2004-02-01), Hughes et al.
patent: 6882860 (2005-04-01), Kim
patent: 2004/0132410 (2004-07-01), Hundal et al.
patent: 2004/0203895 (2004-10-01), Balasuriya
Agere Systems Inc.
D'Agosta Stephen M
Duane Morris LLP
LandOfFree
Advisory alert of low signal strength for cell phone user does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Advisory alert of low signal strength for cell phone user, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Advisory alert of low signal strength for cell phone user will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3999852