Motorola Corporation

Motorola Mobility LLC

Geroncio O Tan

Gustavo Dario Leizerovich

David H Minasi

David R Heeschen

John Robert Siomkos

Curtis M Griffin

Timothy W Heffield

Mauricio Flores

Anuj Atri

Basavanna Vamadevappa Gowda

Prabhu V Patil

Danilo O Tan

A multi-mode communication device () uses a first wireless modem () and a second wireless modem () which operates independently to facilitate communication over different air interfaces. Both modems are powered by a common battery (). When the first wireless modem engages in a communication activity, the second wireless modem's maximum operating power level is reduced. When the first wireless modem ceases communication activity, the second wireless modems full operating power range is restored.

Method and apparatus for controlling power among modems in a multi-mode mobile communication device

A radio frequency amplifier module () has a voltage monitor () that monitors an input supply voltage of an input power supply () and an adjustable power supply () that accepts power from the input power supply () and produces an adjustable power supply output that has a controllable voltage. The radio frequency amplifier module () further has an amplifier () that is supplied by the adjustable power supply output and that amplifies a radio frequency signal. The radio frequency amplifier module () also has an output controller () that is communicatively coupled to the voltage monitor and the adjustable power supply (). The output controller () controls, in response to the input source voltage, the controllable voltage of the adjustable power supply output.

Amplifier with varying supply voltage and input attenuation based upon supply voltage

A transmitter has a loop switch (132) and a feedback switch (127), which are operated by a control circuit (134). An unamplified value is obtained by connecting a cartesian demodulator (126) with the input to a power amplifier (118), applying a fixed baseband signal level to the input of the cartesian modulator, and measuring the output level of the cartesian demodulator. An amplified value is obtained by connecting the output of the power amplifier to the cartesian demodulator, again applying a fixed baseband signal level, and measuring the output of the demodulator. The amplified and unamplified values are compared by the control circuit, and the power amplifier gain is adjusted by varying the gain adjust signal (138), if necessary.

Apparatus and method for tuning the gain of a transmitter utilizing

A leadless surface mountable assembly (100) includes a heat dissipating cover (110), a substrate (120), a heat generating semiconductor device (130), and a spacer (140). The substrate (120) is mounted on the interior surface (115) of the cover (110). The heat generating semiconductor device (130) is thermally coupled to the cover (110) and electrically coupled to the substrate (120). The spacer (140) has an interface portion (147) which provides an electrical interface to the substrate (120). Electrical contacts (144) are disposed on the interface portion (147) of the spacer (140) and are electrically coupled to the substrate (120) through electrical conductors (145) within the spacer (140).

Leadless surface mountable assembly

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Sunrise, FL, United States of America

Geroncio O Tan