Button for an electric device and method of controlling lighting of the button
March 27, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2614162 Luminous key top Back lit keypad Display providing reversible contrasting indicia Multi-language display keypad Keyboard with multifunction keys and apparatus including such a keyboard Lighted key board Keyboard having illuminated keys User interface with guide lights Patent #: 6310609 InventorAssigneeApplicationNo. 09817235 filed on 03/27/2001US Classes:362/109, WITH IMPLEMENT OR HAND HELD HOLDER THEREFOR362/88, Telephone362/24, Telephone dial362/85WITH CONTROL CONSOLEExaminersPrimary: O'Shea, SandraAssistant: Payne, Sharon Attorney, Agent or FirmForeign Patent References
International ClassF21V 3300AbstractIn a button for an electronic device, a red numeral pattern 21, a green kana pattern 31 and a black English character pattern 41 are printed on a key top 11 as plural kinds of patterns. By selectively causing a red LED 51 and a green LED 52 that function as a light source of a backlight to emit a light, red, green and orange lighting colors of the backlight are obtained. According to the color of the pattern used according to a mode, the lighting color of the backlight is switched.Other References
Field of SearchTelephone dialWITH IMPLEMENT OR HAND HELD HOLDER THEREFOR ILLUMINATED SCALE OR DIAL WITH CONTROL CONSOLE LIGHT FIBER, ROD, OR PIPE Illuminating or display apparatus (e.g., sign, runway light, channel marker) Including keyboard or keypad Variable key legends For pictorial or ideographic characters (e.g., design, chinese or japanese characters) Light source associated with each key Having foreign language capability (e.g., Japanese, Chinese) Colored lights Selective or intermittent illumination | |
