Title:
How to modulate an electric power encoder and data
Document Type and Number:
Japanese Patent JP6157716
Kind Code:
B2
Abstract:
A power encoder includes an amplitude-phase splitter for splitting an input signal into an envelope signal and a phase modulated signal, and a pre-distortion unit for distorting the envelope signal using a look-up table (LUT) to produce a distorted envelope signal. The power encoder also includes a digital converter for combining the distorted envelope signal with the phase modulated signal to produce a distorted input signal, a pulse width modulator (PWM) for modulating the distorted input signal according to the transformation function to produce a modulated signal, and a switch mode power amplifier for amplifying the modulated signal. The look-up table stores a non-linear mapping of a transformation function and a relationship between the distorted input signal and the modulated signal is non-linear.
Inventors:
Marui
S, Kioyao
Theo, Kuhn Fu
Duane, Jong Jae
S, Kioyao
Theo, Kuhn Fu
Duane, Jong Jae
Application Number:
JP2016502549A
Publication Date:
July 05, 2017
Filing Date:
October 17, 2014
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H03F1/32; H03F3/217; H03K7/08; H04B1/04; H04L27/00
Domestic Patent References:
| JP2011234348A | ||||
| JP2009530914A |
Foreign References:
| US20030112063 | ||||
| US20110007838 | ||||
| EP2575309A1 |
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino
Yoshiyuki Tamura
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino
Yoshiyuki Tamura
Previous Patent: Manufacture of particles in dynamic textiles provided with exact size control
Next Patent: EPOXY RESIN AND ITS COMPOSITION
Next Patent: EPOXY RESIN AND ITS COMPOSITION