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. 30, 2013
Filed:
Aug. 06, 2009
Sako Asayama, Osaka, JP;
Mitsuharu Matsuo, Ehime, JP;
Keisuke Matsuo, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A first control unit outputs, to a lighting control unit, a lighting signal that causes a plurality of light-emitting units provided for each of a plurality of keys for operating to be sequentially lighted for each of groups determined in advance. Based on a signal for selecting a group outputted from a first selection unit and an output signal from the first control unit, a first comparison/judgment unit outputs a group whose light-emitting unit had been lighted upon selection as a finalized group. A second control unit outputs a lighting signal that causes light-emitting units included in the finalized group to be respectively sequentially lighted, and based on the output signal and a signal for selecting a key outputted from a second selection unit, a second comparison/judgment unit judges that a key corresponding to a light-emitting unit that had been lighted upon selection as a finalized key.