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. 29, 2009
Filed:
Jun. 09, 2008
Zhi-liang Wu, Shenzhen, CN;
Kun-chih Hsieh, Taipei Hsien, TW;
Wen-hsing Lin, Taipei Hsien, TW;
Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Shenzhen, Guangdong Province, CN;
Hon Hai Precision Industry Co., Ltd,., Tu-Cheng, Taipei Hsien, TW;
Abstract
A media playing device is provided. In an exemplary form, the media playing device includes a housing having a cylindrical end with an opening. The media playing device also includes a hollow turning knob. The knob has two protrusions on its inside surface. The media playing device additionally includes a PCB disposed inside the housing with a micro controller unit (MCU) and a pair of switches. The medial playing device further includes an attachment means for attaching the knob to the cylindrical end of the housing and allowing the knob to rotate with respect to the cylindrical end. When the knob is rotated in clockwise direction or counterclockwise direction, one of the two protrusions moves within the opening and can be moved to a position to contact one of the two switches to activate the switch. The activated switch sends a signal to the MCU and the MCU execute an operation.