Electricity: motive power systems – Motor-reversing
Reexamination Certificate
2006-10-24
2006-10-24
Masih, Karen (Department: 2837)
Electricity: motive power systems
Motor-reversing
C318S293000, C318S256000, C318S430000
Reexamination Certificate
active
07126296
ABSTRACT:
A directional load is capable of operating in multiple directions. For example, a directional motor may rotate in clockwise and counterclockwise directions. A directional load driver generates output signals causing the directional load to operate in one of the directions, thereby providing a requested function. The requested function is identified using an input signal, such as a state-encoded input signal. The state-encoded input signal could be received by the directional load driver over a single wire or through a single input pin. Under the control of the directional load driver, the directional load could perform any of a wide variety of functions. In automotive applications, the directional load could open or close a window, lock or unlock a door, or open or close a door. In other applications, the directional load could be used with a residential door lock, a home automation system, or an industrial control.
REFERENCES:
patent: 5146215 (1992-09-01), Drori
patent: 5495155 (1996-02-01), Juzswik et al.
patent: 5673017 (1997-09-01), Dery et al.
patent: 5990739 (1999-11-01), Lam
Burlak Gary J.
Mirowski Marian
Jorgenson Lisa K.
Masih Karen
Munck William A.
STMicroelectronics Inc.
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