Motorola Solutions, Inc.

Arm Limited

Ricardo Franco

Charles R Ruelke

Mark Rozental

Richard S Young

Edward A Diaz

Johnny R Ferreira

Paul Edward Gorday

Ovadia Grossman

Moshe Ben-Ayun

Matthew E Simms

Moshe Ben Ayun

Claudine Tordjman

Uri Vallach

A method, apparatus and computer program product for performing decimated correlation in a wireless communications network is disclosed. An input signal composed of a plurality of streaming samples of the input signal is received and applied to a plurality of shift registers coupled to computation logic. The computation logic receives an input of correlation options and a correlation pattern. Based upon a comparison to a correlation threshold, the correlator selectively holds the correlation options constant to inhibit a new correlation, and/or selectively freezes streaming samples input to the computation logic via a plurality of corresponding shadow registers to save power.

Reduced-power detection of wireless packets using decimated preamble correlation

A method and apparatus for mitigating electromagnetic noise in an electronic device. The method includes generating a trigger clock signal at a first frequency, and generating a second clock signal at a second frequency. The second frequency is higher than the first frequency. The method also includes receiving an input signal with a converter circuit, detecting an event based on the trigger clock signal, and predicting a time for a conversion of the input signal based on the detected event. The method further includes blanking the second clock signal for a predetermined period based on the predicted time for a conversion.

Systems and methods for mitigating noise in an electronic device

A method and device for generating a multi-rate clock signal using a ring voltage-controlled oscillator based phase-locked loop is provided. The device includes a delay line having a length extending beyond a predetermined length required for operation of the phase-locked loop. The device further includes a tap tuning logic circuit coupled to the delay line. The delay line receives an input signal and a tuning voltage from the phase frequency detector, charge pump and loop filter circuits and generates a plurality of tapped output signals. The plurality of tapped output signals is received by the integrated digital multi-rate clock generator configured to create a plurality of clock signals.

Method and apparatus for multi-rate clock generation

A real-time reconfigurable input/output interface of a controller and a method of reconfiguring the same. The reconfigurable interface enables the controller to communicate with a plurality of peripheral digital subsystem blocks, and includes an input/output interface, a profile memory, and a state machine. The input/output interface includes a plurality of data lines including a shared portion that are shared among the plurality of peripheral digital subsystem blocks. The profile memory stores a plurality of interface profiles, each interface profile defining a configuration of the input/output interface to communicate with an associated one of the peripheral blocks. The state machine is coupled to the profile memory to receive interface profiles and to the input/output interface. In response to each request to communicate with a particular peripheral block, the state machine configures the input/output interface according to the interface profile associated with the particular peripheral block.

Reconfigurable interface and method of configuring a reconfigurable interface

Receivers () and methods of adaptively adjusting the receivers based on a received interferer are described. The peak-to-average ratio of a received signal is used to determine the type of interferer. The ratio and interferer type, in addition to the type of on-channel signal, are used to select parameters to adjust the decay time of a peak detector (), and the threshold and hysteresis of a comparator (). The peak detector () and comparator () are used to generate an off-channel flag that indicates the presence of a relatively strong interferer to other modules in the receiver (). If valid data is not present a default set of parameters is provided. The ratio is determined by dividing the maximum peak over the average or a range of ratios is determined by comparing a scaled value of the average to different scaled values of the peak.

Adaptive off-channel detector for receivers

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Plantation, FL, United States of America

Ricardo Franco