Display and keypad backlight management for portable electronic devices
This invention is a portable electronic device including a display, an input device, a lighting circuit, a light sensor and a control circuit. The lighting circuit includes a light source to illuminate the display and the input device. The light sensor determines the ambient lighting conditions abou...
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| creator | Abbasi, Aamir A |
| description | This invention is a portable electronic device including a display, an input device, a lighting circuit, a light sensor and a control circuit. The lighting circuit includes a light source to illuminate the display and the input device. The light sensor determines the ambient lighting conditions about the display and/or the input device and generates an ambient lighting signal based on the ambient lighting conditions. The control circuit is coupled to the lighting circuit and the light sensor and has a delayed operation mode in which a first activation of the input device illuminates the display without performing any other operation of the device and a second activation of the input device performs an operation of the device other than illuminating the display. The control circuit of the portable electronic device may receive a reverse bias signal generated by the lighting circuit when incident with ambient lighting about the user interface to supplement or eliminate the light sensor. |
| format | Patent |
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The lighting circuit includes a light source to illuminate the display and the input device. The light sensor determines the ambient lighting conditions about the display and/or the input device and generates an ambient lighting signal based on the ambient lighting conditions. The control circuit is coupled to the lighting circuit and the light sensor and has a delayed operation mode in which a first activation of the input device illuminates the display without performing any other operation of the device and a second activation of the input device performs an operation of the device other than illuminating the display. The control circuit of the portable electronic device may receive a reverse bias signal generated by the lighting circuit when incident with ambient lighting about the user interface to supplement or eliminate the light sensor.</description><language>eng</language><creationdate>2006</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7117019$$EPDF$$P50$$Guspatents$$Hfree_for_read</linktopdf><link.rule.ids>230,308,777,799,882,64018</link.rule.ids><linktorsrc>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7117019$$EView_record_in_USPTO$$FView_record_in_$$GUSPTO$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Abbasi, Aamir A</creatorcontrib><creatorcontrib>Motorola, Inc</creatorcontrib><title>Display and keypad backlight management for portable electronic devices</title><description>This invention is a portable electronic device including a display, an input device, a lighting circuit, a light sensor and a control circuit. The lighting circuit includes a light source to illuminate the display and the input device. The light sensor determines the ambient lighting conditions about the display and/or the input device and generates an ambient lighting signal based on the ambient lighting conditions. The control circuit is coupled to the lighting circuit and the light sensor and has a delayed operation mode in which a first activation of the input device illuminates the display without performing any other operation of the device and a second activation of the input device performs an operation of the device other than illuminating the display. 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The lighting circuit includes a light source to illuminate the display and the input device. The light sensor determines the ambient lighting conditions about the display and/or the input device and generates an ambient lighting signal based on the ambient lighting conditions. The control circuit is coupled to the lighting circuit and the light sensor and has a delayed operation mode in which a first activation of the input device illuminates the display without performing any other operation of the device and a second activation of the input device performs an operation of the device other than illuminating the display. The control circuit of the portable electronic device may receive a reverse bias signal generated by the lighting circuit when incident with ambient lighting about the user interface to supplement or eliminate the light sensor.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
| recordid | cdi_uspatents_grants_07117019 |
| source | USPTO Issued Patents |
| title | Display and keypad backlight management for portable electronic devices |
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