×

DISPLAY DEVICE AND PORTABLE TERMINAL

  • US 20100118021A1
  • Filed: 01/20/2010
  • Published: 05/13/2010
  • Est. Priority Date: 03/17/2005
  • Status: Active Grant
First Claim
Patent Images

1. A portable terminal comprising:

  • a battery for supplying a first DC power for driving a part of or the entire circuits;

    a resonant circuit comprising a coil and a capacitor for inducing AC power by bringing the resonant circuit into a resonant state, the coil and the capacitor being connected in parallel;

    a power source circuit for generating a second DC power for driving a part of or the entire circuits by rectifying the AC power; and

    a selector circuit for selecting the first DC power or the second DC power,wherein the selector circuit selects the first DC power when signals from a reader/writer are not detected and selects the second DC power when signals from the reader/writer are detected.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×