Claims
- 1. An apparatus for linearization, comprising:
an input node adapted to receive an input signal to control a microelectromechanical device; a system responsive to the input signal, wherein the system is adapted to generate an output signal determined at least by a quotient, and the quotient comprises a relatively variable quantity divided by a sum, and the sum comprises an addition of the relatively variable quantity and a relatively constant quantity, and the relatively variable quantity is determined at least in part by the input signal; and an output node adapted to provide the output signal to control the microelectromechanical device.
- 2. The apparatus of claim 1, further comprising:
the microelectromechanical device coupled to the output node.
- 3. The apparatus of claim 1, wherein a response of the microelectromechanical device to the output signal is substantially proportional to the input signal received at the input node.
- 4. The apparatus of claim 1, wherein the microelectromechanical device comprises a suspended structure.
- 5. The apparatus of claim 1, wherein the microelectromechanical device comprises an optical structure.
- 6. The apparatus of claim 1, wherein the microelectromechanical device controls a modulated intensity of electromagnetic energy.
- 7. The apparatus of claim 6, wherein at least part of the electromagnetic energy is within a wavelength range of about 1530 nm to about 1610 nm.
- 8. The apparatus of claim 1, wherein the system comprises:
at least one look up table comprising values of the input signal and the output signal.
- 9. The apparatus of claim 1, wherein the system further comprises:
a first signal reference; a second signal reference; a constant signal component coupled to the first signal reference; and a variable signal component coupled to the output node and to the second signal reference.
- 10. The apparatus of claim 9, wherein the first signal reference comprises a variable input voltage.
- 11. The apparatus of claim 9, wherein the first signal reference comprises a constant voltage.
- 12. The apparatus of claim 9, wherein the constant signal component comprises a resistor.
- 13. The apparatus of claim 9, wherein the constant signal component comprises a plurality of resistors.
- 14. The apparatus of claim 9, wherein the variable signal component comprises at least one variable resistor.
- 15. The apparatus of claim 9, wherein the second signal reference comprises a constant voltage.
- 16. The apparatus of claim 9, wherein at least one of the constant signal component and the variable signal component comprises at least one of a current and a voltage.
- 17. The apparatus of claim 9, wherein the variable signal component comprises a device having a reactance.
- 18. The apparatus of claim 17, wherein the reactance comprises at least one inductance.
- 19. The apparatus of claim 17, wherein the reactance comprises at least one capacitance.
- 20. The apparatus of claim 9, wherein the constant signal component and the variable signal component are coupled in series.
- 21. The apparatus of claim 9, wherein a maximum magnitude of the variable signal component is greater than a magnitude of the constant signal component by a factor, the factor being in a range of about 17 to about 25.
- 22. An apparatus for linearization, comprising:
an input node adapted to receive an input signal to control a microelectromechanical device; a system responsive to the input signal, wherein the system is adapted to generate an output signal determined at least by a logarithm of a relatively variable quantity, and the relatively variable quantity is determined at least in part by the input signal; and an output node adapted to provide the output signal to control the microelectromechanical device.
- 23. The apparatus of claim 22, further comprising:
the microelectromechanical device coupled to the output node.
- 24. The apparatus of claim 22, wherein a response of the microelectromechanical device to the output signal is substantially proportional to the input signal received at the input node.
- 25. The apparatus of claim 22, wherein the microelectromechanical device comprises a suspended structure.
- 26. The apparatus of claim 22, wherein the microelectromechanical device comprises an optical structure.
- 27. The apparatus of claim 22, wherein the microelectromechanical device controls a modulated intensity of electromagnetic energy.
- 28. The apparatus of claim 27, wherein at least part of the electromagnetic energy is within a wavelength range of about 1530 nm to about 1610 nm.
- 29. The apparatus of claim 22, wherein the system comprises:
at least one look up table comprising values of the input signal and the output signal.
- 30. An apparatus for linearization, comprising:
an input node adapted to receive an input signal to control a microelectromechanical device; a system responsive to the input signal, wherein the system is adapted to generate an output signal determined at least by one or more look up tables, and the one or more look up tables comprising values of the input signal and the output signal; and an output node adapted to provide the output signal to control the microelectromechanical device.
- 31. The apparatus of claim 30, further comprising:
the microelectromechanical device coupled to the output node.
- 32. The apparatus of claim 30, wherein a response of the microelectromechanical device to the output signal is substantially proportional to the input signal received at the input node.
- 33. The apparatus of claim 30, wherein the microelectromechanical device comprises a suspended structure.
- 34. The apparatus of claim 30, wherein the microelectromechanical device comprises an optical structure.
- 35. The apparatus of claim 30, wherein the microelectromechanical device controls a modulated intensity of electromagnetic energy.
- 36. The apparatus of claim 35, wherein at least part of the electromagnetic energy is within a wavelength range of about 1530 nm to about 1610 mn.
- 37. A method of linearization, comprising:
receiving a first signal; determining a first quantity responsive to the first signal; generating a second signal determined at least by a quotient, wherein the quotient comprises the first quantity divided by a sum, and the sum comprises an addition of the first quantity and a second quantity; and sending the second signal to a microelectromechanical device adapted to respond to the second signal.
- 38. The method of claim 37, wherein a response of the microelectromechanical device is substantially proportional to the first signal over a range of the first signal.
- 39. The method of claim 37, wherein due at least to the second signal, a response of the microelectromechanical device is substantially proportional to the first signal over a range of the first signal.
- 40. The method of claim 37, wherein the second quantity comprises a constant.
- 41. The method of claim 40, wherein the constant comprises a resistance.
- 42. The method of claim 40, wherein the constant comprises a plurality of resistances.
- 43. The method of claim 37, wherein the first quantity comprises a variable resistance determined at least by the first signal.
- 44. The method of claim 37, wherein the first quantity comprises a variable reactance determined at least by the first signal.
- 45. The method of claim 44, wherein the variable reactance comprises at least one inductance.
- 46. The method of claim 44, wherein the variable reactance comprises at least one capacitance.
- 47. The method of claim 37, further comprising:
receiving the second signal at the microelectromechanical device; and controlling the microelectromechanical device responsive to the second signal.
- 48. The method of claim 37, wherein at least one of the first quantity and the second quantity comprises at least one of a current and a voltage.
- 49. The method of claim 37, wherein at least one look up table comprises at least one of the quotient and the first quantity.
- 50. The method of claim 37, wherein a maximum magnitude of the first quantity is greater than a magnitude of the second quantity by a factor, the factor being in range of about 17 to 25.
- 51. A method of linearization, comprising:
receiving a first signal; determining a first quantity responsive to the first signal; generating a second signal determined at least by a quotient, wherein the quotient comprises the first quantity divided by a sum, and the sum comprises an addition of the first quantity and a second quantity; and sending the second signal to a device adapted to respond to the second signal, wherein the device controls a modulated intensity of electromagnetic energy.
- 52. The method of claim 51, wherein a response of the device is substantially proportional to the first signal over a range of the first signal.
- 53. The method of claim 51, wherein due at least to the second signal, a response of the device is substantially proportional to the first signal over a range of the first signal.
- 54. The method of claim 51 wherein the second quantity comprises a constant.
- 55. The method of claim 54, wherein the constant comprises a resistance.
- 56. The method of claim 54, wherein the constant comprises a plurality of resistances.
- 57. The method of claim 51, wherein the first quantity comprises a variable resistance determined at least by the first signal.
- 58. The method of claim 51, wherein the first quantity comprises a variable reactance determined at least by the first signal.
- 59. The method of claim 58, wherein the variable reactance comprises at least one inductance.
- 60. The method of claim 58, wherein the variable reactance comprises at least one capacitance.
- 61. The method of claim 51, further comprising:
receiving the second signal at the device; and controlling the device responsive to the second signal.
- 62. The method of claim 51, wherein at least one of the first quantity and the second quantity comprises at least one of a current and a voltage.
- 63. The method of claim 51, wherein at least one look up table comprises at least one of the quotient and the first quantity.
- 64. The method of claim 51, wherein at least part of the electromagnetic energy is within a wavelength range of about 1530 nm to about 1610 nm.
- 65. The method of claim 51, wherein a maximum magnitude of the first quantity is greater than a magnitude of the second quantity by a factor, the factor being in a range of about 17 to 25.
- 66. A method of linearization, comprising:
receiving a first input; responsive to the first input, sending a second input to a microelectromechanical device, wherein the second input substantially linearizes the first input, over a range of the first input, relative to an output of the microelectromechanical device, such that the output of the microelectromechanical device is substantially proportional to the first input over the range of the first input.
- 67. The method of claim 66, further comprising:
receiving the second input at the microelectromechanical device; and determining the output of the microelectromechanical device responsive to the second input.
- 68. A method of linearization, comprising:
receiving a first signal; determining a first quantity responsive to the first signal; generating a second signal determined at least by a logarithm of at least the first quantity; and sending the second signal to a microelectromechanical device adapted to respond to the second signal.
- 69. The method of claim 68, wherein a response of the microelectromechanical device is substantially proportional to the first signal over a range of the first signal.
- 70. The method of claim 68, wherein due at least to the second signal, a response of the microelectromechanical device is substantially proportional to the first signal over a range of the first signal.
- 71. The method of claim 68, further comprising:
receiving the second signal at the microelectromechanical device; and controlling the microelectromechanical device responsive to the second signal.
- 72. The method of claim 68, wherein at least one look up table comprises at least one of the logarithm and the first quantity.
- 73. A method of linearization, comprising:
receiving a first signal; determining a first quantity responsive to the first signal; generating a second signal determined at least by a logarithm of the first quantity; and sending the second signal to a device adapted to respond to the second signal, wherein the device controls a modulated intensity of electromagnetic energy.
- 74. The method of claim 73, wherein a response of the device is substantially proportional to the first signal over a range of the first signal.
- 75. The method of claim 73, wherein due at least to the second signal, a response of the device is substantially proportional to the first signal over a range of the first signal.
- 76. The method of claim 73, further comprising:
receiving the second signal at the device; and controlling the device responsive to the second signal.
- 77. The method of claim 73, wherein at least one look up table comprises at least one of the logarithm and the first quantity.
- 78. The method of claim 73, wherein at least part of the electromagnetic energy is within a wavelength range of about 1530 nm to about 1610 nm.
- 79. A method of linearization, comprising:
receiving a first signal; generating a second signal determined at least by a look up table comprising a value of a second signal corresponding to a value of the first signal; and sending the second signal to a microelectromechanical device adapted to respond to the second signal.
- 80. The method of claim 79, wherein a response of the microelectromechanical device is substantially proportional to the first signal over a range of the first signal.
- 81. The method of claim 79, wherein due at least to the second signal, a response of the microelectromechanical device is substantially proportional to the first signal over a range of the first signal.
- 82. The method of claim 79, further comprising:
receiving the second signal at the microelectromechanical device; and controlling the microelectromechanical device responsive to the second signal.
- 83. A method of linearization, comprising:
receiving a first signal; determining a first quantity responsive to the first signal; generating a second signal determined at least by a look up table comprising values of the first signal and values of the signal; and sending the second signal to a device adapted to respond to the second signal, wherein the device controls a modulated intensity of electromagnetic energy.
- 84. The method of claim 83, wherein a response of the device is substantially proportional to the first signal over a range of the first signal.
- 85. The method of claim 83, wherein due at least to the second signal, a response of the device is substantially proportional to the first signal over a range of the first signal.
- 86. The method of claim 83, further comprising:
receiving the second signal at the device; and controlling the device responsive to the second signal.
- 87. The method of claim 83, wherein at least part of the electromagnetic energy is within a wavelength range of about 1530 nm to about 1610 nm.
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application is a continuation-in-part of and claims the benefit of priority from the U.S. application Ser. No. 09/548,788, filed Apr. 13, 2000, which application is fully incorporated herein by reference.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09548788 |
Apr 2000 |
US |
Child |
09855873 |
May 2001 |
US |