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:
Nov. 02, 1999
Filed:
Jun. 12, 1998
Atsushi Takasugi, Tokyo, JP;
Takeshi Gotoh, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
According to a first aspect of the invention, a memory device has a main memory array and a sub memory array. In a single burst, data are read from a series of columns in the main memory array, transferred from one column in the main memory array to one column in the sub memory array, read from a series of columns in the sub memory array, and written into the above-mentioned one column in the main memory array. According to a second aspect of the invention, a memory device has a memory array and separate external data input terminals and output terminals. In a single burst, data are read from a series of columns in the memory array, and written to one of the columns, preferably the last column in the series. Input of the written data is preferably simultaneous with the output of the data read from the column to which the input data are written.