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:
Oct. 30, 2007
Filed:
Dec. 20, 2001
Erik E. Erlandson, Roseville, CA (US);
David A. Tremblay, Jr., Rocklin, CA (US);
Erik E. Erlandson, Roseville, CA (US);
David A. Tremblay, Jr., Rocklin, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A memory includes an address bus, address counter, address decoder, comparator, and control circuit. During a data read or write cycle, the address bus receives an external address, the address counter generates an internal address, which the address decoder decodes, and the comparator compares the external address to a value. Based on the relationship between the external address and the value, the comparator enables or disables the data transfer. For example, such a memory can terminate a page-mode read/write cycle by determining when the current external column address is no longer equal to the current internal column address. This allows the system to terminate the cycle after a predetermined number of data transfers by setting the external column address to a value that does not equal the internal column address. Or, the comparator can compare the external or internal address to a predetermined end address, and the memory can terminate the cycle when the external or internal address equals the end address.