The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2001
Filed:
May. 28, 1999
Chung-Ming Lin, Feng-Shan, TW;
United Microelectronics Corp., Hsin-Chu, TW;
Abstract
A current interpolation circuit for use in an A/D converter is disclosed. The current interpolation circuit comprises current division circuits or current mirror circuits. Several reference voltages are converted into positive currents and negative currents by some folding amplifiers. Then the positive currents and the negative currents are fed to the current division circuits or the current mirror circuits, generating some positive currents and negative currents. Finally, a number of current comparators are configured to receive the generated positive currents and negative currents to produce differential voltage signals which are then used as interpolated levels.