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.

Date of Patent:
Jul. 16, 2024

Filed:

Jun. 29, 2022
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Hoyoung Shin, Gunpo-si, KR;

Bora Kim, Hwaseong-si, KR;

Junho Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/58 (2006.01); H03K 19/173 (2006.01); H03L 7/081 (2006.01); H03L 7/083 (2006.01); H03L 7/099 (2006.01); H03L 7/107 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0996 (2013.01); G06F 7/582 (2013.01); H03K 19/1737 (2013.01); H03L 7/0818 (2013.01); H03L 7/083 (2013.01); H03L 7/1077 (2013.01);
Abstract

A random number generator includes a ring oscillator, an inversion selecting circuit, and controller. The ring oscillator includes an inverter chain having at least one inverter and generates an output signal. The inversion selecting circuit controlling a phase inverter configured to invert a signal of the inverter chain. The controller is configured to operate the inversion selecting circuit to provide an output of the first phase inverter to the inverter chain during a first operation mode to measure a frequency of the ring oscillator and operate the inversion selecting circuit to not provide the output of the phase inverter during a second operation mode for generating a random number.


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