Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Running-speed control
Reexamination Certificate
2008-01-15
2008-01-15
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Running-speed control
C318S254100, C318S434000, C318S503000
Reexamination Certificate
active
07319299
ABSTRACT:
A cooling fan, system and method for controlling cooling fans in a personal computer. A unique series of sensing points is placed on a rotating hub of a cooling fan in order to uniquely identify the particular type of cooling fan. A tachometer sensor mounted in the cooling fan detects the unique series of sensing points as the cooling fan rotates and generates a sequence of pulses corresponding to the detected sending points. This generated pulse signal may be transmitted by the sensor to the fan control code. The fan control code may determine a particular type of cooling fan that the cooling fan is based on the generated pulse signal. Once the fan control code determines the particular type of cooling fan that the cooling fan is, the fan control code uses particular control parameters set for that particular type of cooling fan to control the cooling fan so that it operates optimally.
REFERENCES:
patent: 4553075 (1985-11-01), Brown et al.
patent: 4554491 (1985-11-01), Plunkett
patent: 5075606 (1991-12-01), Lipman
patent: 5249741 (1993-10-01), Bistline et al.
patent: 6194798 (2001-02-01), Lopatinsky
patent: 6198184 (2001-03-01), Ohi et al.
patent: 6278248 (2001-08-01), Hong et al.
patent: 6392372 (2002-05-01), Mays, II
patent: 6414843 (2002-07-01), Takeda
patent: 6545438 (2003-04-01), Mays, II
patent: 6606578 (2003-08-01), Henderson et al.
patent: 2002/0088615 (2002-07-01), Dixon et al.
patent: 2006/0142901 (2006-06-01), Frankel et al.
Freeman Joseph Wayne
Goodman Steven Dale
Karpel Isaac
Springfield Randall Scott
Donovan Lincoln
Lenovo ( Singapore) Pte. Ltd.
McCloud Renata
Winstead PC
LandOfFree
Determining types of cooling fans used in a personal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Determining types of cooling fans used in a personal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determining types of cooling fans used in a personal... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2801270