Yamaji Takafumi    Department   SOJO UNIVERSITY  Department of Computer and Information Sciences, FACULTY OF COMPUTER AND INFORMATIONSCIENCES      /(DC)Division of Applied Information Sciences, Graduate School of Engineering      /Division of Applied Information Sciences, Graduate School of Engineering    Position
Country of acquisition	Foreign country (米国)
Patent No.	USP 7,884,749
Date of Grant	2011/02/08
Patent Title	A/D converting apparatus
Details	An A/D converting apparatus includes a first A/D converter to sample an analog input signal having a D/A converter to generate a comparative signal for successive comparison with the analog input signal, a signal generator generate a differential signal between the analog input signal and the comparative signal, and a comparator to compare the comparative signal with a standard value to generate a first digital signal exhibiting high-order bit; an amplifier to amplify the differential signal to generate a residue signal; and a second A/D converter to sample the residue signal to generate a second digital signal exhibiting low-order bit.