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Detail
Registered APPARATUS FOR LINEARIZATION OF DIGITALLY CONTROLLED OSCILLATOR
- Inventors
- Choi Jang Hong, Yu Hyun Kyu
- Application No.
- 12629701 (2009.12.02)
- Publication No.
- 20100141315 (2010.06.10)
- Registration No.
- 7911248 (2011.03.22)
- Country
- UNITED STATES
- Project Code
- 08MB3200, Development of Advanced Digital RF Technology for Next Generation Wireless Convergence Terminals, Yu Hyun Kyu
- Abstract
- There is provided an apparatus for the linearization of a digitally controlled oscillator. The apparatus includes a first filter outputting only a low frequency band signal of an input signal to the digitally controlled oscillator; a negative feedback loop causing the signal of an input port of the digitally controlled oscillator to pass through a frequency table and a frequency-to-digital code mapper in sequence and correcting an input of the digitally controlled oscillator by performing negative feedback to an input port of the first filter; and a frequency table generator storing a frequency value of an output signal of the digitally controlled oscillator in the frequency table.
- KSP Keywords
- Digital code, Digitally controlled, Digitally controlled oscillator, Feedback Loop, Input signal, Negative feedback, Negative feedback loop, frequency band, frequency table, low-frequency