Electricity: motive power systems – Positional servo systems – Pulse-width modulated power input to motor
Reexamination Certificate
2005-08-23
2005-08-23
Martin, David (Department: 2837)
Electricity: motive power systems
Positional servo systems
Pulse-width modulated power input to motor
C318S471000
Reexamination Certificate
active
06933697
ABSTRACT:
A system may include control logic and a PWM generator configured to generate a PWM (Pulse Width Modulated) signal. The PWM generator is configured to generate the duty cycle of the PWM signal dependent on a duty cycle value generated by the control logic. The control logic stores an inverse focal point value and is configured to generate the duty cycle value by processing the inverse focal point value and a temperature value indicating a current temperature according to the equation of a parabola.
REFERENCES:
patent: 4476423 (1984-10-01), Mallick et al.
patent: 4486149 (1984-12-01), Merkel
patent: 4513232 (1985-04-01), Safiuddin
patent: 4629035 (1986-12-01), Tanahashi et al.
patent: 4722669 (1988-02-01), Kundert
patent: 4763347 (1988-08-01), Erdman
patent: 4771845 (1988-09-01), Shimizu
patent: 4882586 (1989-11-01), Dolph et al.
patent: 5307439 (1994-04-01), Enami
patent: 5363024 (1994-11-01), Hiratsuka et al.
patent: 5727928 (1998-03-01), Brown
patent: 5825972 (1998-10-01), Brown
patent: 5929591 (1999-07-01), Katou et al.
patent: 5942866 (1999-08-01), Hsieh
patent: 6037732 (2000-03-01), Alfano et al.
patent: 6140786 (2000-10-01), Lee
patent: 6188189 (2001-02-01), Blake
patent: 6208538 (2001-03-01), Halamik et al.
patent: 6226324 (2001-05-01), Allstrom
patent: 6324858 (2001-12-01), Holden
patent: 6519167 (2003-02-01), Nguyen
patent: 6528987 (2003-03-01), Blake et al.
patent: 6661679 (2003-12-01), Yang et al.
patent: 2002/0140389 (2002-10-01), Ohki et al.
patent: 2003/0111976 (2003-06-01), Kumar
patent: 05049298 (1993-02-01), None
Analog Devices, Publication ADM1027, “dBCOOL™ Remote Thermal Controller and Voltage Monitor,” 2003, 56 pages.
National Semiconductor Corporation, Publication LM63, “±1° C Accurate Remote Diode Digital Temperature Sensor with Integrated Fan Control,” Feb. 2003, 28 pages.
Stephen Ohr, “Analog IC vendors find ‘Intel Inside’ a safe bet,” Sep. 12, 2002, online at http://www.eetimes.com/story/OEG20020912S0026.
Marando Eileen M.
Schoepflin Robert W.
Hood Jeffrey C.
Martin David
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Miller Patrick
Standard Microsystems Corporation
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