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Remote control unit

阅读:607发布:2022-07-26

专利汇可以提供Remote control unit专利检索,专利查询,专利分析的服务。并且A remote control system adapted to selectively advance one or more selector switches including a source of optical signal disposed in proximity with a first photo cell, a portable return reflector or retroreflector and means for selectively masking the reflector. The signal developed across the first photo cell is referenced against a second photo cell, such second photo cell being located away from the associated source such that only background signals impinge thereon. In a further embodiment, a plurality of first photo cells are combined with the second photo cell, each such first photo cell being selectively filtered to sense discrete signal frequencies or polarities and a plurality of return reflectors or retroreflectors, selectively filtered in correspondence to the photo cell filters, are disposed for selective exposure by associated masking means.,下面是Remote control unit专利的具体信息内容。

1. A remote control unit for rotating a controlled device of the type including a rotary selector and shaft comprising: an activator on said device including a source of radiated signal to direct a radiated signal along a selected path and first sensing means for sensing signals reflected back from said path; a signal unit remote from said device and including directional reflecting means for positioning in said path to intercept said radiated signal and reflecting it back to said first sensing means; mask means on said signal unit for normally blocking said selected path to said reflecting means; mounting means mounting said mask means from said signal unit for shifting thereof from its closed position confronting said reflecting means to an open position opening said path to said reflecting means; actuating means on said signal unit and coupled with said mask to normally maintain said mask in its closed position and operable upon actuation thereof to shift said mask to its open position; and control means connected to said sensing means for rotating said selector shaft and operative in response to registration on said sensing means of said reflected signal to rotate said rotary selector shaft.
2. Apparatus according to claim 1 wherein: said reflecting means includes a corner reflector.
3. Apparatus according to claim 1 wherein: said radiated signal is an electromagnetic signal in the ultraviolet spectrum.
4. Apparatus according to claim 1 wherein: said sensing means includes a first photo cell connected to ground at one terminal thereof, a second photo cell connected to ground at one terminal thereof in parallel with said first photo cell, resistive means connecting the other ends of said first and second photo cell, said first photo cell being disposed in receiving proximity of the reflection of said radiated signal adjacent said source and said second photo cell being displaced outside the receiving proximity of the reflection of said radiated signal, whereby the sensed differential between said first and second photo cell is indicative of the presence of said reflected signal.
5. Apparatus according to claim 1 wherein: said reflecting means includes a plurality of corner reflectors, a corresponding plurality of first associated filters, each first filter being respectively disposed over associated ones of saiD corner reflectors, and a corresponding plurality of manually articulated cover means disposed over said corner reflectors for selective exposure thereof; and said first sensing means includes a corresponding plurality of first photo cells each respectively covered by correspondingly associated second filters, said first and second filters selectively passing in complement selected components of said radiated signal, said first photo cells being disposed in receiving proximity of the reflection of said radiated signal adjacent said source and said second photo cell being displaced outside the receiving proximity of the reflection of said radiated signal, whereby the sensed differential between said first and second photo cells is indicative of the presence of the selected components of said reflected signal.
6. Apparatus according to claim 5 wherein: said first and second filters include polarized filters aligned in coherent relationship.
7. Apparatus according to claim 5 wherein: said first and second filters include bandpass filters passing electromagnetic signals of mutually-exclusive frequency bands.
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