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. 26, 1993
Filed:
Feb. 14, 1992
Georg Lang, Sulzbach-Rosenberg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A read-only memory with electrical overwrite capability has several storage cells, whereby each storage cell has one address, on the basis of which the storage cell can be individually written and read. The memory could be a read-only memory which can be quickly and completely erased. The memory has contacts for connecting lines for address signals, data signals and control signals. The read-only memory has at least two storage areas that are capable of being separately written and read, possibly also separately erased, to which the storage cells are assigned, whereby the storage cells in those areas have identical addresses. In dependence upon one internal state variable, the storage cells of one of the storage areas can only be accessed for reading purposes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile