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. 08, 2014
Filed:
Oct. 11, 2011
Steven C. Sullivan, Austin, TX (US);
Steven C. Sullivan, Austin, TX (US);
Apple Inc., Cupertino, CA (US);
Abstract
A memory column redundancy mechanism includes a memory having a number of data output ports each configured to output one data bit of a data element. The memory also includes a number of memory columns each connected to a corresponding respective data port. Each memory column includes a plurality of bit cells that are coupled to a corresponding sense amplifier that may differentially output a respective data bit from the plurality of bit cells on an output signal and a complemented output signal. The memory further includes an output selection unit that may select as the output data bit for a given data output port, one of the output signal of the sense amplifier associated with the given data output port or the complemented output signal of the sense amplifier associated with an adjacent data output port dependent upon a respective shift signal for each memory column.