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. 12, 1995
Filed:
Jun. 23, 1992
David L Taylor, Carrollton, TX (US);
Other;
Abstract
A preamp/driver circuit (18) is disclosed which is operable to interface a Bit Line (14) with a Data Line (20). The Bit Line (14) has a plurality of memory cells associated therewith which are selectable by Word Lines. The preamp/driver (18) decouples the Bit Line (14) from the Data Line (20) and drives Data Line (20) from a separate source. The preamp/driver (18) is comprised of a depletion transistor (22) that has the gate thereof connected to the Bit Line (14) and drives a source follower (26). The source follower (26) drives the Data Line (20) from the supply potential. The system is operable during a restore operation to write back to the Bit Line (14) from the Data Line (20) through a Write transistor (28). The restore operation is effected with a restore amplifier with the Read operation effected through a separate sensing device that converts the voltage on the Data Lines to full logic potentials.