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:
Feb. 11, 2025

Filed:

Mar. 23, 2023
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Tomoyuki Kamazuka, Tokyo, JP;

Kenshiro Himoto, Tokyo, JP;

Shoji Kato, Tokyo, JP;

Yuusaku Kiyota, Tokyo, JP;

Assignee:

HITACHI VANTARA, LTD., Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/00 (2006.01); H03M 7/30 (2006.01);
U.S. Cl.
CPC ...
H03M 13/6312 (2013.01); H03M 7/6041 (2013.01);
Abstract

In a compression mode in which plaintext data is input, and compressed, a first code that is an error detection code is generated with respect to the plaintext data, and compressed. A circuit generates restored plaintext data in which the compressed data is decompressed, for confirming successfulness. A second code that is an error detection code is generated with respect to the restored plaintext data and is compared with the first code. In a case where the first code and the second code agree, the compressed data and the first or second code are output. In a decompression mode, plaintext data is generated in which the input compressed data is decompressed. A third code that is an error detection code is generated with respect to the plaintext data and is compared with an input code, and when the input code and the third code agree, the plaintext data is output.


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