发明名称 |
PAGER WITH AUTOMATICALLY ILLUMINATED DISPLAY |
摘要 |
<p>"Pager With Automatically Illuminated Display" A pager comprising a light sensor which is responsive to light externally illuminating the pager to generate a first signal when the sensed light is below a predetermined luminance value. The first signal is supplied to a coincidence gate which provides a coincidence output when it detects the coincidence of the first signal with a second signal that is generated when there is a message on a display. The coincidence output feeds a light source to illuminate the display to make it visible under poor lighting conditions.</p> |
申请公布号 |
CA1232026(A) |
申请公布日期 |
1988.01.26 |
申请号 |
CA19840463961 |
申请日期 |
1984.09.25 |
申请人 |
NEC CORPORATION |
发明人 |
ISHII, DAISUKE |
分类号 |
H04Q7/14;G08B3/10;G08B5/22;G09G3/00;H04Q7/00;(IPC1-7):H04B1/16 |
主分类号 |
H04Q7/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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