MIRROR DRIVING CIRCUIT AND OPTICAL SWITCH
First Claim
1. A mirror driving circuit that applies a voltage to drive a mirror and switches an optical path of light output from a channel of an input port to a channel of an output port, the mirror driving circuit comprising:
- an offset-voltage applying unit that applies an offset voltage to the mirror;
an applied-voltage determining unit that determines an applied voltage to be applied to the mirror based on a relation between the channel of the input port and the channel of the output port forming a path of the light; and
a voltage applying unit that applies to the mirror a remaining voltage obtained by subtracting the offset voltage from the applied voltage.
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Accused Products
Abstract
A mirror driving circuit applies a voltage to drive a mirror and switches an optical path of light output from a channel of an input port to a channel of an output port. The mirror driving circuit includes an offset-voltage applying unit that applies an offset voltage to the mirror, an applied-voltage determining unit that determines an applied voltage to be applied to the mirror based on a relation between the channel of the input port and the channel of the output port forming a path of the light, and a voltage applying unit that applies to the mirror a remaining voltage obtained by subtracting the offset voltage from the applied voltage.
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Citations
7 Claims
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1. A mirror driving circuit that applies a voltage to drive a mirror and switches an optical path of light output from a channel of an input port to a channel of an output port, the mirror driving circuit comprising:
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an offset-voltage applying unit that applies an offset voltage to the mirror; an applied-voltage determining unit that determines an applied voltage to be applied to the mirror based on a relation between the channel of the input port and the channel of the output port forming a path of the light; and a voltage applying unit that applies to the mirror a remaining voltage obtained by subtracting the offset voltage from the applied voltage.
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2. A mirror driving circuit that applies a voltage to drive a mirror and switches an optical path of light output from a channel of an input port to a channel of an output port, the mirror driving circuit comprising:
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an offset-voltage output unit that outputs an offset voltage; an applied-voltage determining unit that determines an applied voltage to be applied to the mirror based on a relation between the channel of the input port and the channel of the output port forming a path of the light; a voltage output unit that outputs a remaining voltage obtained by subtracting the offset voltage from the applied voltage; and a voltage adding unit that adds the offset voltage output from the offset-voltage output unit and the voltage output from the voltage output unit together and applies a voltage obtained through addition to the mirror. - View Dependent Claims (3, 4)
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5. An optical switch transmitting an optical signal, comprising:
a mirror driving circuit that applies a voltage to drive a mirror and switches an optical path of light output from a channel of an input port to a channel of an output port, the mirror driving circuit including an offset-voltage output unit that outputs an offset voltage, an applied-voltage determining unit that determines an applied voltage to be applied to the mirror based on a relation between the channel of the input port and the channel of the output port forming a path of the light, a voltage output unit that outputs a remaining voltage obtained by subtracting the offset voltage from the applied voltage, and a voltage adding unit that adds the offset voltage output from the offset-voltage output unit and the voltage output from the voltage output unit together and applies a voltage obtained through addition to the mirror. - View Dependent Claims (6, 7)
Specification