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:
Aug. 10, 2021

Filed:

Jul. 13, 2020
Applicant:

Kioxia Corporation, Minato-ku, JP;

Inventor:

Hiroo Yabe, Nerima, JP;

Assignee:

Kioxia Corporation, Minato-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/03 (2006.01); H03K 19/0175 (2006.01); G04F 10/00 (2006.01); H03K 3/037 (2006.01);
U.S. Cl.
CPC ...
H03K 19/017509 (2013.01); G04F 10/005 (2013.01); H03K 3/037 (2013.01); H03K 3/0315 (2013.01);
Abstract

An oscillation circuit has a voltage generator configured to generate a linearly changing voltage, a voltage level of which linearly changes as time passes, a first comparator configured to compare the linearly changing voltage with a first reference voltage, a second comparator configured to compare the linearly changing voltage with a second reference voltage having a higher voltage level than the first reference voltage, a time-to-digital converter configured to output a bit sequence signal in accordance with a time difference between a time when the first comparator detects that the linearly changing voltage matches the first reference voltage and a time when the second comparator detects that the linearly changing voltage matches the second reference voltage, and an oscillator configured to generate an oscillation signal that oscillates at a frequency according to the bit sequence signal.


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