Apparatus and method for controlling power of laser diode...

Details Apparatus and method for controlling power of laser diode... Apparatus and method for controlling power of laser diode...

2011-03-22

2011-03-22

Pham, Hai C (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

C347S246000

Reexamination Certificate

active

07911491

ABSTRACT:
An apparatus includes an output voltage sensing unit, which senses an output voltage of a laser diode, which has been sampled during a power control period and transmits the sensed output voltage of the laser diode to an output voltage control unit; the output voltage control unit, which obtains an error voltage between a reference voltage and the sensed output voltage of the laser diode and generates a control voltage by proportionally integrating the error voltage; and an optical power compensation unit, which receives the control voltage and generates a compensated control voltage by compensating for an optical power deviation on the photosensitive drum during the printing period.

REFERENCES:
patent: 4237427 (1980-12-01), Holland
patent: 4577320 (1986-03-01), Yoshikawa et al.
patent: 4611270 (1986-09-01), Klauminzer et al.
patent: 4774710 (1988-09-01), Davis et al.
patent: 4794413 (1988-12-01), Yamazaki et al.
patent: 4862289 (1989-08-01), Shimada
patent: 5184578 (1993-02-01), Quinn et al.
patent: 5222072 (1993-06-01), Oku
patent: 5225850 (1993-07-01), Egawa et al.
patent: 5276781 (1994-01-01), Chang et al.
patent: 5369272 (1994-11-01), Eguchi
patent: 5579328 (1996-11-01), Habel et al.
patent: 5701283 (1997-12-01), Alon et al.
patent: 5754577 (1998-05-01), Casper et al.
patent: 5838359 (1998-11-01), Hoover
patent: 5854652 (1998-12-01), Andersen
patent: 5961857 (1999-10-01), Takahashi et al.
patent: 5966159 (1999-10-01), Ogasawara
patent: 5973719 (1999-10-01), Araki et al.
patent: 6151344 (2000-11-01), Kiely et al.
patent: 6222580 (2001-04-01), Yamada
patent: 6223006 (2001-04-01), Scheuer et al.
patent: 6229833 (2001-05-01), Noda et al.
patent: 6278476 (2001-08-01), Ueno
patent: 6288733 (2001-09-01), Nakazawa et al.
patent: 6370175 (2002-04-01), Ikeda et al.
patent: 6690693 (2004-02-01), Crowder
patent: 6775216 (2004-08-01), Kelly et al.
patent: 6795099 (2004-09-01), Koga et al.
patent: 7061951 (2006-06-01), Fairgrieve et al.
patent: 7492796 (2009-02-01), Hwang
patent: 2001/0028383 (2001-10-01), Mutou et al.
patent: 2002/0036688 (2002-03-01), Saito et al.
patent: 2002/0121094 (2002-09-01), VanHoudt
patent: 2003/0016961 (2003-01-01), Kitajima
patent: 2003/0142706 (2003-07-01), Kartner et al.
patent: 2004/0057476 (2004-03-01), Hwang
patent: 2004/0156094 (2004-08-01), Kawahara et al.
patent: 2005/0028770 (2005-02-01), McCabe
patent: 2005/0078723 (2005-04-01), Han et al.
patent: 2005/0128281 (2005-06-01), Gong et al.
patent: 2006/0056471 (2006-03-01), Ueno
patent: 2006/0140231 (2006-06-01), Han
patent: 63053043 (1988-03-01), None
patent: 06-274019 (1994-09-01), None
patent: 08-015631 (1996-01-01), None
patent: 08-043752 (1996-02-01), None
patent: 2000-031577 (2000-01-01), None
patent: 2000-052590 (2000-02-01), None
patent: 2000349376 (2000-12-01), None
patent: 2002236400 (2002-08-01), None
patent: 2003043400 (2003-02-01), None
PID Controller from Wikipedia, the free encyclopedia, pp. 1-7 (in English).
U.S. Office Action for related U.S. Appl. No. 10/646,923; mailed Jun. 9, 2005.
U.S. Office Action for related U.S. Appl. No. 10/646,923; mailed Nov. 28, 2005.
U.S. Office Action for related U.S. Appl. No. 10/646,923; mailed Jun. 20, 2006.
U.S. Office Action for related U.S. Appl. No. 10/646,923; mailed Jan. 5, 2007.
U.S. Office Action for related U.S. Appl. No. 10/646,923; mailed Aug. 9, 2007.
U.S. Office Action for related U.S. Appl. No. 10/646,923; mailed Apr. 1, 2008.
U.S. Office Action for related U.S. Appl. No. 10/646,923; mailed Aug. 21, 2008.
U.S. Notice of Allowance for related U.S. Appl. No. 10/646,923; mailed Dec. 8, 2008.

Affiliated with

Also associated with

Rating

Apparatus and method for controlling power of laser diode... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for controlling power of laser diode..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for controlling power of laser diode... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2628628