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:
Dec. 04, 2012
Filed:
Feb. 24, 2011
Sung Tae Kim, Incheon, KR;
Sang Gyu Park, Gyunggi-do, KR;
Kyung Uk Kim, Seoul, KR;
Dong OK Han, Gyunggi-do, KR;
Seung Chul Pyo, Gyunggi-do, KR;
Soo Woong Lee, Seoul, KR;
Sung Tae Kim, Incheon, KR;
Sang Gyu Park, Gyunggi-do, KR;
Kyung Uk Kim, Seoul, KR;
Dong Ok Han, Gyunggi-do, KR;
Seung Chul Pyo, Gyunggi-do, KR;
Soo Woong Lee, Seoul, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-do, KR;
Abstract
There are provided a Schmitt trigger circuit that has hysteresis characteristics in which a release point and an operating point are determined based on a width of an inputted pulse. The Schmitt trigger circuit may include a signal/pulse conversion unit that receives an analog signal to generate an input pulse having a width corresponding to a magnitude of the analog signal, a pulse width determination unit that compares the width of the input pulse generated in the signal/pulse conversion unit with a predetermined first threshold width and a second threshold width greater than the first threshold width to output state information indicating the compared result, and an output determination unit that outputs a high signal, when the width of the input pulse is changed from a state of being smaller than the second threshold width to a state of being greater than the second threshold width based on the state information, and outputs a low signal when the width of the input pulse is changed from a state of being greater than the first threshold width to a state of being smaller than the first threshold width based on the state information.