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:
Feb. 04, 2014
Filed:
Feb. 16, 2012
Shih Chang Chi, Hsinchu, TW;
Hsiang Sheng Liu, Hsinchu, TW;
Kuo Jui Sun, Hsinchu, TW;
Yen Min Chang, Hsinchu, TW;
Shih Chang Chi, Hsinchu, TW;
Hsiang Sheng Liu, Hsinchu, TW;
Kuo Jui Sun, Hsinchu, TW;
Yen Min Chang, Hsinchu, TW;
Pixart Imaging Inc., Hsin-Chu, TW;
Abstract
A programmable memory device includes a plurality of one-time programmable (OTP) memory units, a search unit, a writing unit, and a reading unit. Each OTP memory unit is assigned an address. The search unit searches for the first writable OTP memory unit from the plurality of OTP memory units in a writing operation, or searches for the last programmed OTP memory unit from the plurality of OTP memory units in a reading operation. The writing unit writes data to be written and the bit length of the data to the first writable OTP memory unit. The reading unit sequentially reads data from the last programmed OTP memory unit.