VYYCORE LTD. Patent applications |
Patent application number | Title | Published |
20130113559 | DEVICE AND METHOD FOR PRE-DISTORTING AND AMPLIFYING A SIGNAL BASED ON AN ERROR ATTRIBUTE - A method and a device may be provided. The device may include a non-linear amplifying circuit arranged to apply a non-linear gain function on an analog signal to provide an amplified signal; an input circuit, arranged to clip I channel and Q channel digital input signals supplied from a digital transmitter, to provide clipped I-channel and Q-channel digital signals; a pre-distortion circuit, arranged to pre distort the clipped I channel and Q channel digital signals such as to at least partially compensate for a non linearity of the non linear gain function, to provide pre-distorted I-channel and Q-channel digital signals; a mixed signal circuit for converting the pre-distorted I-channel and Q-channel digital signals to the analog signal; a reconstruction circuit, arranged to receive at least a portion of the amplified signal and to generate reconstructed I-channel and Q-channel signals; and a control circuit, arranged to: calculate an error attribute based on (a) the clipped I-channel and Q-channel digital signals, and (b) the reconstructed digital I-channel and Q-channel signals; and to affect at least one operational parameter of the non-linear amplifying circuit in response to the error attribute. | 05-09-2013 |
20130044836 | DEVICE AND METHOD FOR PRE-DISTORTING AND AMPLIFYING A SIGNAL BASED ON AN ERROR ATTRIBUTE - A method and a device. The device may include: a non-linear amplifying circuit for applying a non-linear gain function on an analog signal to provide an amplified signal; an input circuit, for clipping I-channel and Q-channel digital input signals, to provide clipped I-channel and Q-channel digital signals; a pre-distortion circuit, for pre-distorting the clipped I-channel and Q-channel digital signals such as to at least partially compensate for a non-linearity of the non-linear gain function, to provide pre-distorted I-channel and Q-channel digital signals; a mixed signal circuit for converting the pre-distorted I-channel and Q-channel digital signals to the analog signal; a reconstruction circuit for generating reconstructed I-channel and Q-channel signals; and a control circuit, arranged to: calculate an error attribute based on the clipped and the reconstructed I-channel and Q-channel digital signals and to affect a gain of at least one components of the device in response to the error attribute. | 02-21-2013 |