发明名称 |
TELEVISION RECEIVER, TELEVISION RECEPTION BOARD, AND TELEVISION RECEPTION TUNER |
摘要 |
PROBLEM TO BE SOLVED: To reduce reception difficulty caused by an electromagnetic wave noise source on a printed circuit board in a television receiver comprising plural reception systems.SOLUTION: The television receiver comprises: a first wave length laser diode for optical intensity modulation of a first television broadcast signal; a second wave length laser diode for optical intensity modulation of a second television broadcast signal; an optical coupler for coupling the outputs of both of the laser diodes; an optical fiber cable for transmitting the output of the optical coupler; an optical distributor supplied with light from the optical fiber cable; a first high-frequency reception unit which processes the first television broadcast signal having undergone optic/electric conversion by a first wave length photodiode supplied with the output of the optical distributor; and a second high-frequency reception unit which processes the second television broadcast signal having undergone optic/electric conversion by a second wave length photodiode. |
申请公布号 |
JP2013138343(A) |
申请公布日期 |
2013.07.11 |
申请号 |
JP20110288392 |
申请日期 |
2011.12.28 |
申请人 |
HITACHI MEDIA ELECTORONICS CO LTD |
发明人 |
SUGIYAMA YOSHIICHI;MURAKAMI SHINICHI |
分类号 |
H04N5/44;H04B1/10;H04B1/18;H04B10/00;H04N7/173 |
主分类号 |
H04N5/44 |
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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