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1. 发明授权

US06725064B1 Portable terminal device with power saving backlight control 有权
标题翻译：便携式终端设备，具有省电背光控制功能
公开(公告)号：US06725064B1
公开(公告)日：2004-04-20
申请号：US09615262
申请日：2000-07-13
申请人： Kiichirou Wakamatsu , Tadao Suzuki
发明人： Kiichirou Wakamatsu , Tadao Suzuki
IPC分类号： H04M100
CPC分类号： H04M1/72561 , H04M1/22 , H04W52/027 , Y02D70/00
摘要： A cellular phone has back light illumination for its display unit and a key unit, and is capable of receiving internet information, receiving karaoke songs, or receiving and sending electronic mails. In the case that the cellular phone is used for electronic mailing, it is checked whether the cellular phone is operated in a character/number input mode. If it is not in the input mode, only the display unit and a function key part of the key unit are illuminated. A ten key part of the key unit is illuminated only when it is to be manipulated to change display on the display unit. In the case of executing the internet function or the karaoke function, the illumination control for the display unit and the key unit is controlled in the similar manner.
摘要翻译：蜂窝电话具有用于其显示单元和关键单元的背光照明，并且能够接收互联网信息，接收卡拉OK歌曲或接收和发送电子邮件。在蜂窝电话用于电子邮件的情况下，检查蜂窝电话是否以字符/号码输入模式操作。如果不在输入模式，只有显示单元和按键单元的功能键部分亮起。关键单元的十个关键部分只有在被操纵才能改变显示单元上的显示时亮起。在执行互联网功能或卡拉OK功能的情况下，以类似的方式控制显示单元和按键单元的照明控制。

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