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:
Oct. 10, 2006
Filed:
Nov. 24, 2003
Anthony Correale, Jr., Raleigh, NC (US);
Rajiv V. Joshi, Yorktown Heights, NY (US);
David S. Kung, Chappaqua, NY (US);
Zhigang Pan, Austin, TX (US);
Ruchir Puri, Peekskill, NY (US);
Anthony Correale, Jr., Raleigh, NC (US);
Rajiv V. Joshi, Yorktown Heights, NY (US);
David S. Kung, Chappaqua, NY (US);
Zhigang Pan, Austin, TX (US);
Ruchir Puri, Peekskill, NY (US);
International Business Machines Corp., Armonk, NY (US);
Abstract
A level converter for interfacing two circuits supplied by different supply voltages, and integrated circuit including the level converter interfacing circuit in two different voltage islands. A first buffer is supplied by a virtual supply and receives an input signal from a lower voltage circuit. The first buffer drives a second buffer, which is supplied by a higher supply voltage. An output from the second buffer switches a supply select to selectively pass the higher supply voltage or a reduced supply voltage to the first buffer.