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Television interphone device

阅读:134发布:2023-03-24

专利汇可以提供Television interphone device专利检索,专利查询,专利分析的服务。并且PURPOSE:To facilitate the confirmation of visitors and to improve the performance for prevention of crimes, by actuating a TV camera and a TV picture receiver with the signal of a sensor for human bodies. CONSTITUTION:The main body 6 of a TV interphone device 6 consists of a handset 2 serving as a master device of an interphone and a picture receiver 1 and is set at a prescribed position at the indoor side A. While a calling device 8 serving as an interphone slave device and a TV camera 3 are set at the outdoor side B. A sensor 4 for human bodies detects a visitor X and rings a bell 7 provided in the master device side and at the same time actuates the camera 3, the receiver 1 and the main body 6 for a prescribed period of time. In such way, it is possible to detect quickly the visitor X before he or she touches the slave device, to judge the necessity for reception, and to save useless trouble.,下面是Television interphone device专利的具体信息内容。

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