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:
Dec. 12, 2000
Filed:
Dec. 16, 1997
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
3692751 ; 235487 ; 235492 ; 360-2 ; 369 47 ;
Abstract
A CPU can execute, for example, 4-bit processes, a program for data processes has been written in an ROM, and an RAM has memory areas for a work area and a user area of the CPU. Data supplied from the outside through an input terminal and an I/F circuit is recorded in a user area in the RAM. The recorded data is read out and supplied to the outside through an input/output terminal. An LCD displays a size (data residual amount) of an unused area in the RAM by, for example, a bar graph type. The ROM, RAM, I/F circuit, and driver are connected to the CPU by a bus line.