Delphi Technologies, Inc.

Aptiv Technologies Limited

Raed S Shatara

Steven S Langston

Nazar F Bally

Jeffrey J Marrah

Daniel G Morris

Mathew Alan Boytim

Zbigniew Szydlowski

A receiver system and method are provided, wherein the system includes a plurality of antenna elements, and a receiver device configured to emit an output based upon the received signal. The receiver device communicates a control signal that corresponds to a determined signal quality of the received signal. The receiver system also includes a switch system adapted to switch among the plurality of antenna elements in a plurality of modes, wherein the switch system includes a first switch device and a second switch device. Further, the system includes a controller that receives the control signal, wherein the controller commands the switch system to operate in a first mode utilizing the first switch device when the determined signal quality is above a threshold value, and the controller commands the switch system to operate in a second mode utilizing the second switch device when the determined signal quality is below a threshold value.

Hybrid switched-phased diversity system and method

A receiver system and method for receiving signals are provided, wherein the system includes a plurality of antenna elements configured to receive a transmitted signal. A receiver device is in communication with the plurality of antenna elements, wherein the receiver device is configured to emit an output based upon the received signal, and communicate a control signal that corresponds to a determined signal quality of the received signal. A switch device is adapted to switch among the plurality of antenna elements to electrically connect a selected antenna element of the plurality of antenna elements to the receiver device. A controller is in communication with the receiver device, such that the controller receives the control signal, wherein the controller commands the switch device to directly switch to any of the antenna elements to electrically connect one of the plurality of antenna elements to the receiver device based upon the control signal.

Receiver system and method for receiving signals

A technique for reducing multipath distortion in a mobile FM receiver with a plurality of antennas is accomplished through a number of steps. Initially, a first antenna signal and a second antenna signal are received. The first antenna signal is weighted with a variable first weight and the second antenna signal is weighted with a variable second weight. The weighted first antenna signal and the weighted second antenna signal are then combined to provide a combined received signal having a combined signal level. The variable first and second weights are determined by an adaptation strategy that is substantially controlled by a first algorithm, when the combined signal level is greater than a predetermined signal level. When the combined signal level is less than the predetermined signal level, the variable first and second weights are determined by an adaptation strategy substantially controlled by a second algorithm.

Technique for reducing multipath distortion in an FM receiver

A receiver system with dual tuner diversity for background processing and for reducing multipath distortion. The receiver system provides a plurality of antennas with a dual tuner design. One tuner may be used solely for background processing of a received signal while the other tuner may be simultaneously used to reduce multipath distortion.

Dual tuner diversity for background processing and to reduce multipath distortion

A system and method of a stereo receiving system, including a plurality of antennas, a receiving device, a plurality of summing devices, a phase lock loop device, a controllable phase shifter device, and a gain-control device. The plurality of antennas receive RF signals having a common frequency but potentially different phases. The receiving device is in electrical communication with the plurality of antennas. The plurality of summing devices are in electrical communication between at least one of the plurality of antennas and the receiving device. The phase lock loop device is in electrical communication with the receiving device. The gain-control device is in electrical communication between the plurality of antennas and the receiving device, wherein the gain-control device controls a signal-to-noise ratio of the RF signals aligned from the plurality of antennas.

System and method of a stereo receiving system

A technique for reducing multipath distortion in an FM receiver, with a plurality of switchable antennas, provides a fast distortion detector that monitors a received signal for significant distortion events of less than about 15 microseconds in duration. In response to a multipath event, the output of the fast distortion detector initiates a search for a lower distortion (better quality) antenna. To prevent frequent antenna searches from causing an audible disturbance, a threshold is introduced to desensitize the fast distortion detector. Threshold decay is a function of an overall received RF signal level. A slow distortion detector is also provided that measures distortions of the received signal relating to signal quality.

Technique for reducing multipath interference in an FM receiver

An RF receiver system is provided having a plurality of selectable antennas. The system includes a receiver for receiving RF signals from one of the plurality of antennas at a time. The receiver includes processing circuitry for processing the RF signals and generating a control signal to control selection of one of the antennas at a time. The system further includes a switched diversity module having a plurality of switches coupled to the plurality of antennas for selecting one of the antennas at a time. The switched diversity module further includes logic receiving the control signal generated by the receiver and generating logic output signals to control selection of one of the antennas at a time.

RF receiver system having switched antenna diversity module

The invention relates to a method for the control of the bandpass width in the filtering of an intermediate frequency signal of an audio receiver of a radio reception apparatus. A signal parameter of a user signal of the audio receiver which is received at a reception frequency is determined and taken into account and a signal parameter of at least one neighboring signal which is received at a neighboring frequency which is adjacent to the reception frequency is determined. The bandpass width of the intermediate frequency filtering is selected in dependence at least on the signal parameter which is determined from the user signal, on the signal parameter which is determined from the neighboring signal and on the frequency distance between the reception frequency and the user frequency. Furthermore, the invention relates to a corresponding radio reception apparatus.

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Carmel, IN, United States of America

Raed S Shatara