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:
May. 20, 1997
Filed:
Jul. 07, 1995
Matthew D Bates, Austin, TX (US);
Roderick M West, Colchester, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A Video-RAM semiconductor memory device comprised of a RAM army having an address input for inputting row, column, and target addresses, and a serial access array having a serial output port. The Video-RAM has address/control logic which detects a stimulus such as a RAS clock from an external controller indicating a coarse timing location for a data transfer between the RAM array and the serial access array. The control logic then provides control signals, that are internally synchronized with a serial clock, and that occur during a period that a tap pointer is equal to a value one less than a programmable target value or an input target address. This causes a row in the RAM array corresponding to an input row address to be transferred between the RAM array and the serial access array.