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:
Jul. 29, 2014
Filed:
Oct. 20, 2011
Jun-wei Zhang, Guangdong, CN;
Jun Zhang, Guangdong, CN;
Tsung-jen Chuang, New Taipei, TW;
Shih-fang Wong, New Taipei, TW;
Qi-long Yu, Shenzhen, CN;
Chia-hung Chien, New Taipei, TW;
Jun-Wei Zhang, Guangdong, CN;
Jun Zhang, Guangdong, CN;
Tsung-Jen Chuang, New Taipei, TW;
Shih-Fang Wong, New Taipei, TW;
Qi-Long Yu, Shenzhen, CN;
Chia-Hung Chien, New Taipei, TW;
Fu Tai Hua Industry (Shenzhen) Co., Ltd., Shenzhen, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
An illumination apparatus includes a power supply, a pulse width modulation (PWM) circuit, a switching unit, and an illuminating unit. The power supply supplies a supply voltage to the PWM circuit and the illuminating unit. The PWM circuit outputs a first level voltage by being fully charged by the voltage of the power supply and outputs a second level voltage by being fully discharged. The switching unit is turned off according to the first level voltage and controls the illuminating unit to stop emitting light. The switching unit is turned on according to the second level voltage and controls the illuminating unit to emit light.