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Photosensitive automatic blind controller

  • US 5,532,560 A
  • Filed: 11/08/1994
  • Issued: 07/02/1996
  • Est. Priority Date: 11/08/1994
  • Status: Expired due to Term
First Claim
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1. A photosensitive automatic controller connected to a power supply for use with a window covering having an opening and closing device, comprising:

  • a reversible motor operably connected to the opening and closing device having a predetermined range from open to closed corresponding to the window covering being fully opened and fully closed;

    a drive circuit operably connected to the reversible motor for generating a drive signal which drives the motor in a predetermined range from fully opened to fully closed;

    a photosensitive sensor for generating a sensor signal;

    user input means for generating an input signal;

    a control signal processor operably connected to the photosensitive sensor and the user input means wherein the sensor signal is combined with the input signal to produce a control signal;

    a feedback sensor operably connected to the opening and closing device for generating a feedback signal which corresponds to the position of the opening and closing device;

    a command circuit operably connected to the drive circuit, the control signal processor and the feedback sensor for comparing the feedback signal to the control signal and producing a command signal and transmitting the command signal to the drive circuit.

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