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:
Jun. 01, 2021
Filed:
Jan. 23, 2019
International Business Machines Corporation, Armonk, NY (US);
Chitra K. Subramanian, Mahopac, NY (US);
Ghavam G. Shahidi, Pound Ridge, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A true random number generator includes a latch circuit, a noise circuit coupled to the latch circuit and an equalization circuit coupled to the inputs of the latch circuit, the equalization circuit being configured to maintain the latch circuit in a balanced state and to allow the latch circuit to resolve from a metastable state based on a timing control. A method of generating a random number output includes maintaining a latch circuit in a balanced state by turning on an equalization circuit coupled to the inputs of the latch circuit, coupling at least one noise source to the latch circuit, allowing the latch circuit to resolve from a metastable state by turning off the equalization circuit and repeatedly turning the equalization circuit on and off based on a timing control.