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. 10, 1994
Filed:
Jul. 17, 1991
Bahador Rastegar, Dallas, TX (US);
SGS-Thomson Microelectronics, Inc., Carrollton, TX (US);
Abstract
A dual-port memory device provides bit lines having a crossover pattern to reduce stray end coupling capacitances. Such crossover occurs approximately in the middle of the memory array for the device. Data in one-half of the array is stored in an inverted manner from data in the other half of the array. A preferred technique for clearing a memory provides for resetting only a portion of the bits of the array for each entry, with the bits of all memory entries being reset simultaneously. In order to provide such a reset function with the preferred bit line crossover scheme, a voltage node used for reset must also provide signal lines which are crossed over in the middle of the array.