Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2011-06-14
2011-06-14
Font, Frank G (Department: 2872)
Optical waveguides
With optical coupler
Switch
C359S199200, C359S200600, C359S224100, C359S900000
Reexamination Certificate
active
07961993
ABSTRACT:
A control section of an optical switch calculates information relating to a polarization amount in an insulating film at each predetermined time, to update the information relating to the polarization amount in the insulating film. On the other hand, when a drive voltage is applied to a MEMS mirror, an initial value of the drive voltage corresponding to an input setting command is read out from an initial value memory, and also, the information relating to the polarization amount in the insulating film is read out from the polarization amount memory, and the initial value of the drive voltage is corrected according to the read information relating to the polarization amount in the insulating film, to thereby set a new drive voltage, and the new drive voltage is applied on electrodes of the MEMS mirror.
REFERENCES:
patent: 7697179 (2010-04-01), Nanjyo et al.
patent: 2002/0109076 (2002-08-01), Tochio et al.
patent: 2007/0216423 (2007-09-01), Grosjean et al.
patent: 2008/0100899 (2008-05-01), Shimokawa et al.
patent: 2 060 871 (2009-05-01), None
patent: 2002-236264 (2002-08-01), None
patent: 00/13210 (2000-03-01), None
Zhang X M et al., “A Study of the Static Characteristics of a Torsional Micromirror”, Sensors and Actuators A, Elsevier Sequoia S.A., Lausanne, CH, vol. A90, No. 1/02, May 1, 2001, pp. 73-81.
Cheol-Hyun Han et al, “Parylene-diaphram Piezoelectric Acoustic Transducers”, 20000123-20000127, Jan. 23, 2000, pp. 148-152.
William D. Greason, “Analysis of Charge Injected Processes including ESD in MEMS” 29thElectrical Overstress/Electrostatic Discharge Symposium, Sep. 1, 2007, pp. 2B. 4-1-4-6.
European Search Report mailed Jul. 10, 2009 and issued in corresponding European Patent Application 08020328.4.
Mori Kazuyuki
Shimizu Takashi
Font Frank G
Fujitsu Limited
Staas & Halsey , LLP
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