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:
Jan. 22, 2019
Filed:
Jun. 16, 2017
Apple Inc., Cupertino, CA (US);
Vivekanandan Venugopal, San Jose, CA (US);
Ajay Kumar Bhatia, Saratoga, CA (US);
Michael R. Seningen, Austin, TX (US);
Apple Inc., Cupertino, CA (US);
Abstract
An apparatus and method for operating a level shifter circuit that receives an input signal of interderminate voltage level is disclosed. The level shifter circuit may receive the input signal from a circuit block coupled to a first power supply signal, and generate an output signal using a second power supply signal, different than the first power supply signal. The level shifter circuit may clamp a storage node included in the level shifter circuit, and isolated at least one circuit path included in the level shifter circuit in response to a determination that an isolation signal has been enabled.