发明名称 |
IMAGE DISPLAY DEVICE |
摘要 |
An authentication/decryption unit authenticates and decrypts video signals received from a video signal output device. An open-condition detector detects the open condition of a cabinet. A memory stores therein one of a first flag indicating that an authentication operation of the authentication/decryption unit is enabled and a second flag indicating that an authentication operation of the authentication/decryption unit is disabled. A micro-controller controls whether the authentication operation of the authentication/decryption unit will be enabled or disabled according to the flag in the memory. When the open-condition detector detects that the cabinet is opened, the micro-controller writes the second flag into the memory.
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申请公布号 |
US2009323945(A1) |
申请公布日期 |
2009.12.31 |
申请号 |
US20060365590 |
申请日期 |
2006.03.02 |
申请人 |
VICTOR COMPANY OF JAPAN, LIMITED |
发明人 |
KOGUCHI TATSUSHI;USUDA NORIHIRO;HAKUNO KAZUHIRO |
分类号 |
H04N7/16;H04N7/167;G09G5/00;H04L9/10;H04L9/32;H04N5/00;H04N7/173 |
主分类号 |
H04N7/16 |
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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