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:
Jan. 18, 1994
Filed:
Oct. 13, 1992
Harry E Oldham, Swavesey, GB;
Advanced RISC Machines Limited, Cambridge, GB;
Abstract
A data memory and a method of reading a data memory are described. Data words (Word0, Word1, Word2, Word3) are stored within the data memory within an array of memory cells arranged in columns and rows. A particular data word within a memory cell is accessed by activating a complete row (2) to output the data words within all columns of that row and then selecting the data word from the appropriate column with a data word selection multiplexer (6). An amplifier (8) is used to reduce the time taken for data signals read from the array to reach readable values. In order to save power, the amplifier is disabled during a second and subsequent successive reading operations from a row that has already been activated. Precharging of a output lines is also disabled for second and subsequent successive readings from a row.