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. 20, 1988
Filed:
Mar. 23, 1987
Anthony M Olson, Stevensville, MI (US);
Babu Rajaram, St. Joseph, MI (US);
Zenith Electronics Corporation, Glenview, IL (US);
Abstract
A data processing system includes a plurality of memory access devices, each having a characteristic operating speed, for writing data into and reading data from a dynamic random access memory (DRAM) as well as a memory controller for accessing a plurality of addressable storage locations in the DRAM for either storing data in or reading stored data from the various storage locations in the DRAM. The system further includes a dynamic column address strobe (CAS) signal generator responsive to a memory access cycle signal, or READ pulse, and a conventional CAS signal for generating a dynamic CAS signal having a floating trailing edge which extends to the end of the memory access cycle as well as to the trailing edge of the READ pulse irrespective of the length of the memory access cycle signal to allow data to be read from the DRAM by any memory access device regardless of its operating speed during a memory access signal without losing or temporarily storing this data prior to providing it to the memory access device.