Patent ID: 8723713
Filing Date: 2014-05-13
Classification: H03H,H03M

Abstract:
1. A signal interpolation device, comprising: a first amplifier to generate a first signal representing a difference between an input signal and a first reference voltage; a second amplifier to generate a second signal representing a difference between the input signal and a second reference voltage; a first output amplifier to amplify the first signal to generate a first output signal; a second output amplifier to amplify the second signal to generate a second output signal; a third output amplifier to amplify a sum of a first interpolation signal and the first signal to generate a third output signal, the first interpolation signal representing a voltage generated by dividing a difference between the first reference voltage and the second reference voltage by “2^n”(“n” is an integer of at least two); and a fourth output amplifier to amplify a difference between the second signal and the first interpolation signal to generate a fourth output signal.