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. 27, 2011
Filed:
Jan. 03, 2006
Mao-shan Hsu, Taoyuan County, TW;
Yi-hsiang Huans, Taoyuan County, TW;
Mao-Shan Hsu, Taoyuan County, TW;
Yi-Hsiang Huans, Taoyuan County, TW;
Delta Electronics, Inc., Taoyuan County, TW;
Abstract
A display device includes a processor, a memory, an interface and a keypad. The keypad, separably connected to the interface, includes a signal generator. When the display device is connected to a power source, the processor sends a first signal to the interface. The signal generator generates a second signal in response to the first signal. The processor determines whether the second signal is correct based on data stored in the memory. If yes, the display device may be activated. A method for activating the display device via the separable keypad comprises the steps of: connecting the display device to the power source; the display device sending the first signal to the interface; determining whether the second signal is correct; and if yes, activating the display device.