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:
Apr. 01, 2003
Filed:
Sep. 18, 2001
Vydhyanathan Kalyanasundharam, San Jose, CA (US);
Ajay Naini, San Jose, CA (US);
Fujitsu Limited, Kawasaki, JP;
Abstract
A register array system including a first number of rows by a second number of columns of data registers, a read line, a read bit line, and a single pull down device corresponding to each data register in each column of data registers and configured to discharge, in response to being turned on, the read bit line corresponding to the column of data registers. The pull down device corresponding to a data register is only turned in response to a clock signal, a read enable signal, and the data stored in the data register each having a high value. Therefore, the capacitance associated with the read bit line corresponding to a column of data registers stays at the same capacitance value during the precharging phase and during a multi-hot condition. The problem of voltage droop caused by charging sharing in a multi-hot condition is thus eliminated.