Motorola Corporation

Analog Devices,inc.

Richard Snead Camden

Sybren Daniel Smith

Alfred R Mangino

Paul J Da Graca

Jason Terrill Young

A system and method is provided for reducing signal distortion and saturation within an RF receiver which may be operated in an environment under the presence of interfering signals such as in a WiMAX environment. In an embodiment, a first gain stage and a second gain stage are selectively lowered to predetermined lower levels, assuring that if there is a blocker present, it would not cause signal distortion and saturation in the receiver. The loss of the gain in the first gain stage and second gain stage is compensated by a third gain stage which selectively amplifies the signals of interest. If a blocker is not detected, the maximum allowable gain of the first gain stage and the second gain stage is set to a predetermined upper limit allowing for maximum receiver sensitivity. Accordingly, with this system and method a direct conversional receiver can operate in the presence of interfering signals without signal distortion and saturation.

Method and system for detecting an out of band interferer in an RF receiver

A mobile station (101) and a base station (103) coupled to a land line network (200) communicate over a radio frequency (RF) communication link (202). The mobile station (101) includes a jack (104) for optionally attaching a cord (172) between the mobile station (101) and the base station (103) for establishing a wireline communication link therebetween. When the wireline communication link is established, the RF communication link (202) is terminated. During a telephone call when the RF communication link (202) is established, the cord (172) may be attached to establish the wireline communication link without interrupting the telephone call.

Growing community of inventors

Deerfield Beach, FL, United States of America

Richard Snead Camden