Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention
Reexamination Certificate
2011-03-01
2011-03-01
Pan, Yuwen (Department: 2618)
Telecommunications
Transmitter and receiver at same station
With transmitter-receiver switching or interaction prevention
C455S088000, C455S550100, C455S557000
Reexamination Certificate
active
07899410
ABSTRACT:
An adjustable antenna interface includes a single-ended to differential conversion circuit, an adjustable impedance matching circuit, an RF differential switch, and an input. The single-ended to differential conversion circuit converts inbound RF signals from single-ended signals to differential signals and converts outbound RF signals from differential signals to single-ended signals. The adjustable impedance matching circuit provides an impedance based on an impedance control signal. The RF differential switch provides the differential outbound RF signals from the IC to the single-ended to differential conversion circuit in accordance with a first antenna control signal and provides the differential inbound RF signals from the single-ended to differential conversion circuit to the IC in accordance with a second antenna control signal. The input receives the first antenna control signal, the second antenna control signal, and the impedance control signal from the IC.
REFERENCES:
patent: 2004/0214528 (2004-10-01), Khorram et al.
patent: 2005/0227728 (2005-10-01), Trachewsky
patent: 1349647 (2002-05-01), None
patent: 1335544 (2003-08-01), None
patent: 1727291 (2006-11-01), None
patent: 20060066021 (2006-06-01), None
GSM “LoCosto”, Texas Instruments, Technology for Innovators, pp. 1-2.
Edge/GPRS/GSM Single-Chip Multimedia Baseband Processor, BCM2133, Product Brief, Broadcom Corporation, 2133-PB07-D1, Nov. 30, 2006, pp. 1-2.
WCDMA Baseband Coprocessor, BCM2141, Product Brief, Broadcom Corporation, 2141-PB03-R, Dec. 1, 2006, pp. 1-2.
Hedge Single-Chip Multimedia Baseband Processor, BCM2152, Product Brief, Broadcom Corporation, 2152-PB04-R, Dec. 1, 2006, pp. 1-2.
Andrew Fogg: DigRF Baseband/RF Digital Interface Specification; Logical, Electrical and Timing Characteristics, EGPRS Version, Digital Interface Working Group, version 1.12, pp. 1-32.
Hayek Claude G.
Hayem Frederic Christian Marc
Rakshani Vafa James
Rofougaran Ahmadreza (Reza)
Rofougaran Maryam
Broadcom Corporation
Garlick & Harrison & Markison
Markison Timothy W.
Pan Yuwen
Short Shayne X.
LandOfFree
Adjustable antenna interface and applications thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adjustable antenna interface and applications thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable antenna interface and applications thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2693570