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:
Feb. 22, 2005
Filed:
May. 28, 2002
Wen Zhang, Shanghai, CN;
Wei Shen, Shanghai, CN;
Shen Zhang, Shanghai, CN;
Inventec Appliances Corp., Taipei Hsieng, TW;
Abstract
The invention is to provide a method for inputting different characters by multi-directionally pressing one single key of a portable electronic device more than one time, the key having a plurality of protuberances on an underside and a circuit board having a plurality of pads being equal in number to the protuberances and disposed correspondingly thereto, the method comprises determining the conduction periods of time by a control circuit, while one key being multi-directionally pressed a plurality of times to cause the protuberances to contact the corresponding pads at different conduction periods of time; reading a corresponding character sequentially from a built-in character database based on a longer one of the conduction periods of time; and displaying the read character. By utilizing this method, it is possible of effecting a fast input on the keypad.