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. 16, 2013
Filed:
Oct. 22, 2010
Shi-wen Chen, Dashe Township, Kaohsiung County, TW;
Ming-hung Chang, Tainan, TW;
Wei-chih Hsieh, Taoyuan, TW;
Wei Hwang, Hsinchu, TW;
Shi-Wen Chen, Dashe Township, Kaohsiung County, TW;
Ming-Hung Chang, Tainan, TW;
Wei-Chih Hsieh, Taoyuan, TW;
Wei Hwang, Hsinchu, TW;
National Chiao Tung University, Hsinchu, TW;
Abstract
A fully on-chip temperature, process, and voltage sensor includes a voltage sensor, a process sensor and a temperature sensor. The temperature sensor includes a bias current generator, a ring oscillator, a fixed pulse generator, an AND gate, and a first counter. The bias current generator generates an output current related to temperature according to the operating voltage of chip. The ring oscillator generates an oscillation signal according to the output current. The fixed pulse generator generates a fixed pulse signal. The AND gate is connected to the ring oscillator and the fixed pulse generator for performing a logic AND operation on the oscillation signal and the fixed pulse signal, and generating a temperature sensor signal.