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. 23, 2000
Filed:
Jun. 02, 1999
Toshio Mukunoki, Osaka, JP;
Hiroshige Hirano, Nara, JP;
George Nakane, Nara, JP;
Tetsuji Nakakuma, Osaka, JP;
Tatsumi Sumi, Osaka, JP;
Nobuyuki Moriwaki, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A reference potential generator is constituted of two signal lines 21 and 22; a charge supplier to supply charge to signal lines 21 and 22; connectors 24a and 24b connecting the charge supplier 23 and two signal lines 21 and 22 in order to supply charge to the two signal lines; and a connector 25 connecting two signal lines 21 and 22 together by the second control signal, and two signal lines are disconnected after the potentials of the two signal lines determined by the supplied charge and each of load capacitances of signal lines are averaged. A semiconductor memory device of the invention incorporating the above reference potential generator generating an exact reference potential, is able to amplify and output the potential difference between the reference potential and the potential of data readout in the bit line, and by this, '1' or '0' of readout data can be precisely determined.