The methods and devices of the described technology each have several aspects, no single
one of which is solely responsible for its desirable attributes. In one aspect, a method of …

Provided are, among other things, systems, apparatuses, methods and techniques for
converting a continuous-time, continuously variable signal into a sampled and quantized …

Apparatus and methods for phase synchronization of phase-locked loops (PLLs) are
provided. In certain configurations, an RF communication system includes a PLL that …

A circuit in a wireless communications terminal/device and a method is described for
reducing an image distortion. By measuring three gain mismatches of I path and Q path of a …

(57) A transmission RF section (101) up-converts a DA-converted test signal into a high-
frequency signal. An amplitude of the high-frequency signal, an envelope of which is …

A wireless transmission apparatus includes a service processing unit, a duplexer, a radio
frequency receiving unit, a frequency synthesizer, and a controller. The controller controls …

ABSTRACT A method and device for calibrating a DC offset and an 1-Q imbalance
component of an RF transceiver, the method including inputting a test signal into a …

Apparatus and methods for timing offset compensation of frequency synthesizers are
provided herein. In certain embodiments, an electronic system includes a frequency …

US9413473B2 - System, method and computer storage medium for calibrating RF
transceiver - Google Patents US9413473B2 - System, method and computer storage …

Apparatus and methods for transceiver calibration are provided. In certain configurations, a
transceiver includes a transmit channel and an observation channel. The transmit channel …