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:
Jun. 12, 2001
Filed:
Sep. 30, 1999
Bret Johnson, München, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An output driver circuit of a clocked integrated semiconductor memory of the DRAM type is driven by a circuit for generating an output signal as a function of two input signals. A validity signal, which is supplied to the circuit, ensures that the data to be output are in a valid state before the output driver is activated. As a result, a situation in which different propagation times of input signals of the output driver circuit lead to multiple switching operations within an access cycle of a memory access is prevented. An event-oriented control of the enabling process of the output driver ensures a proper function even in the case of variable frequencies of the clock control.