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. 01, 2019
Filed:
Sep. 20, 2016
Qualcomm Incorporated, San Diego, CA (US);
Manish Garg, Cary, NC (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Voltage level shifter (VLS) circuits employing a pre-conditioning circuit for pre-conditioning an input signal to be voltage level shifted in response to a pre-charge phase are disclosed. A VLS circuit is configured to voltage level shift an input signal in a lower voltage domain on an output node in a higher voltage domain. The VLS circuit includes a pre-charge circuit configured to pre-charge the output node in a pre-charge phase. The VLS circuit also includes a pull-up circuit and a pull-down circuit that are configured to pull-up and pull-down the pre-charge phase of the output node, respectively, in an evaluation phase based on a logic state of the input signal to generate the output signal. To mitigate or avoid contention between the pull-up and pull-down circuits in the evaluation phase, the input signal is pre-conditioned such that the pull-down circuit is deactivated in response to the pre-charge phase.