Fan

Details Fan Fan

2004-11-24

2009-12-15

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Plural diverse motor controls

Running-speed control

C318S278000, C318S400300, C388S803000

Reexamination Certificate

active

07633250

ABSTRACT:
The present invention provides a fan that has a fan motor and two signal lines including a number-of-rotations switching control signal line and a rotational state outputting signal line, makes the fan motor rotate at a number of rotations determined by a number-of-rotations switching control signal input via the number-of-rotations switching control signal line, outputs the rotational state of the fan motor via the rotational state outputting signal line, and can provide notification of detail data without increasing the number of signal lines. The fan retains data in the data storage section in a non-volatile manner and outputs the data via the conventionally existing rotational state outputting signal line.

REFERENCES:
patent: 5166585 (1992-11-01), Koharagi et al.
patent: 5682826 (1997-11-01), Hollenbeck
patent: 05-252784 (1993-09-01), None
patent: 05-264080 (1993-10-01), None

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