SIGNAL INPUT DEVICE OF DIGITAL-RF CONVERTER

• US 20130082756A1
• Filed: 09/13/2012
• Published: 04/04/2013
• Est. Priority Date: 10/04/2011
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: CHOI, Jang Hong, PARK, Mun Yang, BOO, Hyun Ho, HAN, Seon-Ho, YU, Hyun Kyu
• Application Number:
  US13/614,262
• Publication Number:
  US 20130082756A1
• Time in Patent Office: Days
• US Class Current: 327/164
• CPC Class Codes: H03C 3/38 by converting amplitude modulation to angle modulation

Abstract

The present invention provides a signal input device of a digital-RF converter including: a phase-modulated signal input unit configured to input a phase-modulated carrier signal to an LO switch of a digital-RF converter; and a digital signal input unit configured to correct a digital signal to correspond to the phase-modulated carrier signal, and input the corrected digital signal to a data switch of the digital-RF converter.

Claims

1. A signal input device of a digital-RF converter comprising:

a phase-modulated signal input unit configured to input a phase-modulated carrier signal to an LO switch of a digital-RF converter; and

a digital signal input unit configured to correct a digital signal to correspond to the phase-modulated carrier signal, and input the corrected digital signal to a data switch of the digital-RF converter.

2. The signal input device of claim 1, wherein the phase-modulated signal input unit includes an LO phase modulator configured to generate the phase-modulated carrier signal by modulating the phase of a carrier signal through a random pulse input from a pulse stream generator generating a random pulse by receiving a digital clock.

3. The signal input device of claim 1, wherein the phase-modulated signal input unit includes an LO phase modulator configured to generate the phase-modulated carrier signal by modulating the phase of a carrier signal through a square wave having a constant period input from a pulse stream generator generating a square wave having a constant period by receiving a digital clock.

4. The signal input device of claim 1, wherein the digital signal input unit includes a logic circuit unit configured to perform XNOR (Exclusive NOR) on raw data and the random pulse input from the pulse stream generator generating a random pulse by receiving a digital system clock.

5. The signal input device of claim 1, wherein the digital signal input unit includes a logic circuit unit configured to perform XNOR (Exclusive NOR) on raw data and the square wave having a constant period input from the pulse stream generator generating a square wave having a constant period by receiving a digital system clock.

6. The signal input device of claim 1, wherein the phase-modulated carrier signal is shared by a plurality of digital-RF converters.