Telecommunications – Transmitter and receiver at same station
Reexamination Certificate
2008-05-06
2008-05-06
Le, Lana (Department: 2618)
Telecommunications
Transmitter and receiver at same station
C455S127100, C455S127200, C455S067110, C455S086000, C455S075000, C455S115100, C455S084000, C455S085000, C330S256000, C330S266000, C330S272000, C330S289000, C330S279000, C330S102000, C330S127000, C330S101000
Reexamination Certificate
active
07369816
ABSTRACT:
A radio transceiver includes circuitry that enables received RF signals to be down-converted to baseband frequencies and baseband signals to be up-converted to RF signals prior to transmission without requiring conversion to an intermediate frequency. The circuitry includes a temperature sensing module that produces accurate voltage level readings that may be mapped into corresponding temperature values. A processor, among other actions, adjusts gain level settings based upon detected temperature values. One aspect of the present invention further includes repetitively inverting voltage signals across a pair of semiconductor devices being used as temperature sensors to remove a common mode signal to produce an actual temperature-voltage curve. In one embodiment of the invention, the circuitry further includes a pair of amplifiers to facilitate setting a slope of the voltage-temperature curve.
REFERENCES:
patent: 5448770 (1995-09-01), Hietala et al.
patent: 5781075 (1998-07-01), Bolton et al.
patent: 6342997 (2002-01-01), Khadkikar et al.
patent: 6366622 (2002-04-01), Brown et al.
patent: 6476392 (2002-11-01), Kaufman et al.
patent: 6567763 (2003-05-01), Javanifard et al.
patent: 7046959 (2006-05-01), Ammar et al.
patent: 7068985 (2006-06-01), Quilisch et al.
patent: 7118273 (2006-10-01), Schnaitter
patent: 7120393 (2006-10-01), Behzad et al.
patent: 2003/0138034 (2003-07-01), Shi et al.
patent: 2006/0097135 (2006-05-01), Al-Ali
Behzad Arya (Reza)
Kappes Michael Steven
Akbar Muhammad
Broadcom Corporation
Garlick & Harrison & Markison
Harrison James A.
Le Lana
LandOfFree
Highly accurate temperature sensor employing mixed-signal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Highly accurate temperature sensor employing mixed-signal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly accurate temperature sensor employing mixed-signal... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2813718