Method and apparatus for processing the output signal of an...

Details Method and apparatus for processing the output signal of an... Method and apparatus for processing the output signal of an...

2007-12-11

2007-12-11

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Plural diverse motor controls

Running-speed control

C318S605000, C318S661000, C318S254100

Reexamination Certificate

active

10892204

ABSTRACT:
An apparatus for processing a signal output by an encoder, including a frequency multiplication unit to repeatedly multiply each of frequencies of two sinusoidal signals with a phase difference of approximately 90 degrees by a predetermined number a predetermined number of times; a converter to convert each pair of the two frequency-multiplied sinusoidal signals into square wave signals; and a processor to receive the square wave signals and count a number of rising and/or falling edges of the square wave signals in order to determine and control a position of an object to be controlled.

REFERENCES:
patent: 3896299 (1975-07-01), Rhodes
patent: 4266176 (1981-05-01), Fulton
patent: 4312030 (1982-01-01), Byers
patent: 5162798 (1992-11-01), Yundt
patent: 5623520 (1997-04-01), Kaiser
patent: 5676147 (1997-10-01), Petrofsky et al.
patent: 6354691 (2002-03-01), Uchikata
patent: 6492911 (2002-12-01), Netzer
patent: 6525530 (2003-02-01), Jansson et al.
patent: 6762714 (2004-07-01), Cohen et al.
patent: 6831578 (2004-12-01), Krueger et al.
patent: 2004/0257023 (2004-12-01), Tamisier et al.
patent: 2005/0024044 (2005-02-01), Poirier et al.
patent: 9-1797 (1997-01-01), None
patent: 10-315559 (1998-12-01), None
patent: 2000-141803 (2000-05-01), None
patent: 87-18824 (1987-12-01), None
Office Action issued by the Korean Patent Office in Application No. 10-2003-0048648 dated Feb. 25, 2005.

Affiliated with

Also associated with

Rating

Method and apparatus for processing the output signal of an... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for processing the output signal of an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for processing the output signal of an... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3844936