Antenna diversity receiver

Details Antenna diversity receiver Antenna diversity receiver

2005-03-22

2005-03-22

Deane, Jr., William J. (Department: 2642)

Telecommunications

Receiver or analog modulated signal frequency converter

Measuring or testing of receiver

C455S324000, C455S132000, C375S148000, C375S349000

Reexamination Certificate

active

06871052

ABSTRACT:
An antenna diversity receiver comprises a zero-IF receiver connected to two antennas (102a, 102b) via switches (532,534). Simultaneous measurement of signal qualities from both antennas is possible by routing signals from the first antenna (102a) via a first mixer (106) and channel filter (116) and routing signals from the second antenna (102b) via a second mixer (108) and channel filter (118). A diversity controller (536) compares the signal qualities received from the antennas (102a,102b) during a data preamble to select a preferred antenna, then adjusts the switches (532,534) to route the signals from the preferred antenna to both input mixers (106,108). The amplifier (104a,104b) connected to the deselected antenna may be switched off during data reception, thereby minimizing extra power consumption.Such an antenna diversity receiver enables effective antenna selection to be performed, even in systems such as Bluetooth where only a very short preamble is provided for receiver configuration.

REFERENCES:
patent: 5940452 (1999-08-01), Rich
patent: 6014571 (2000-01-01), Enoki
patent: 20030081656 (2003-05-01), Buehrer et al.

Affiliated with

Also associated with

Rating

Antenna diversity receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Antenna diversity receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna diversity receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3396819