发明名称 |
Digital clock for motor vehicles |
摘要 |
A motor vehicle digital display clock including a digital time display performed by fluorescent type display tubes provided in the passenger compartment of the motor vehicle, a driving means for generating time signals to be displayed on the display means, a selection switch means provided in the passenger compartment which generates a brightness signal and a brightness control circuit electrically coupled to the grid of the fluorescent type display tubes which controls the brightness of the fluorescent type display tubes by controlling the grid voltage in response to the brightness signal.
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申请公布号 |
US4089157(A) |
申请公布日期 |
1978.05.16 |
申请号 |
US19770757475 |
申请日期 |
1977.01.07 |
申请人 |
TOYOTA JIDOSHA KOGYO K.K. |
发明人 |
KUROYAMA, TOSHINOBU;HIROSE, HISASHI |
分类号 |
G04G9/00;G04G9/10;G04G99/00;(IPC1-7):G04B19/30;G04B47/00;G04C3/00 |
主分类号 |
G04G9/00 |
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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