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. 29, 2012
Filed:
Jun. 01, 2011
Jun Pin Tan, Kuala Lumpur, MY;
Tze Swan Tan, Pahang, MY;
Chuan Khye Chai, Penang, MY;
Boon Jin Ang, Penang, MY;
Kar Keng Chua, Penang, MY;
Jun Pin Tan, Kuala Lumpur, MY;
Tze Swan Tan, Pahang, MY;
Chuan Khye Chai, Penang, MY;
Boon Jin Ang, Penang, MY;
Kar Keng Chua, Penang, MY;
Altera Corporation, San Jose, CA (US);
Abstract
Techniques for encoding and decoding fuse data to reduce sense current are disclosed. An embodiment to encode fuse sense data includes inverting each of the bits of the fuse data and using an individual fuse as a flag bit to record the data inversion. The states of the respective fuses may represent different logic states. A fuse may be blown to indicate a logic one and likewise, an unblown fuse may indicate a logic zero. A blown fuse and an unblown fuse may have different current consumption. An unblown fuse may consume more sensing current compared to a blown fuse. Another embodiment to decode the encoded fuse data includes embedded logic circuits and a separate fuse as a flag bit. Encoding and decoding fuse data may reduce fuse sensing current.