The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2016
Filed:
Jan. 08, 2014
Electronics and Telecommunications Research Institute, Daejeon, KR;
Seunghyun Jang, Daejeon, KR;
Sung Jun Lee, Daejeon, KR;
Young Kyun Cho, Daejeon, KR;
Bong Hyuk Park, Daejeon, KR;
Jae Ho Jung, Daejeon, KR;
Kwangchun Lee, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A signal amplification apparatus includes a first modulator configured to receive an envelope signal, use a predetermined reference level to separate the received envelope signal into a first period and a second period, digitally modulate a signal of the second period to output the digitally modulated signal to a first output terminal, and output a signal of the first period to a second output terminal. Further, the signal amplification apparatus includes a second modulator configured to mix the digital modulated signal input through the first output terminal with a phase modulated carrier signal; an envelope modulator configured to output the signal of the first period as a power supply signal; and a power amplifier configured to amplify the mixed signal output by the second modulator to output the amplified signal.