Motorola Solutions, Inc.

Motorola Corporation

Moshe Ben Ayun

Mark Rozental

Ovadia Grossman

Maksim Berezin

Sooliam Ooi

Ricardo Franco

Roni Shamsian

Ilan Yehezkel Horowitz

Uri Vallach

Shay Nir

Nachman Grabsky

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

An antenna and methods for manufacturing the antenna is provided. The antenna () includes an electrically non-conductive substrate (). The antenna further includes an electrically conductive strip (). The electrically conductive strip () is wound around the electrically non-conductive substrate () so as to form an overlap () between adjacent turns of the electrically conductive strip (), without creating a galvanic connection at the overlap.

Antenna and method of forming same

An antenna assembly () includes a ground plane formed on a chassis () of the radio and the functional knob forming an antenna element (). The antenna assembly further includes a slot or notch element () in the ground plane substantially adjacent to the functional knob and having a length less than &#xbc; wavelength, and a coaxial cable () feeding the antenna element. A shield of the coaxial cable can be directly connected to the ground plane and a center conductor of the coaxial cable can be directly coupled to the functional knob to provide a galvanic connection for narrowband performance or the center conductor can be electromagnetically coupled to the functional knob for wideband performance or both. The antenna assembly can create a zero volume notch type ground excitation.

Notched antenna structure with a stepped shaped element

A RFPA (radio frequency power amplifier) circuit () which includes a RFPA (), a supply voltage source (), means () for applying to the RFPA a gain control bias voltage and a feedback control loop () for adjusting a voltage applied to the RFPA, the feedback control loop including a sampler () for sampling an output of the RFPA, a RF detector () for detecting a level of RF power sampled by the sampler, a comparator () for comparing an output signal from the RF detector with a reference signal, an integrator () for integrating an output signal of the comparator and a voltage regulator () having a first input from the integrator and a second input from the supply voltage source and an output connected to the RFPA, the regulator being operable to apply to the RFPA a supply voltage adjusted in response to an input signal from the integrator.

RF power amplifier circuit and RF transmitter and terminal including it

Radio transmitter with power amplifier linearizer

Growing community of inventors

Shoham, Israel

Moshe Ben Ayun