CIRCUIT FOR INCREASING THE RESOLUTION OF A LASER GYROSCOPE WITH CLOCK SYNCHRONIZATION

Abstract

A laser gyroscope signal generator for increasing the resolution of the gyroscope, the signal generator being responsive to a sequence of pairs of phase shifted first and second laser gyroscope output pulses each being characterized to have a first and second laser gyroscope output pulses each being characterized to have a first and second logic state, said first and second output pulses in each pair having a leading or lagging phase relationship determined by the direction of rotation the laser gyroscope sourcing said pairs of phase shifted output pulses, the laser gyroscope output signal generator also being responsive to a system clock signal source for providing a clock signal having a pulse recurrent frequency greater than the pulse recurrent frequency of said phase shifted first and second laser gyroscope output pulses, the output signal generator comprising: a memory means responsive to said phase shifted first and second LGO (laser gyroscope output) pulses and said clock signal for transferring the logic state of each respective LGO pulse into a memory in synchronization with clock signal and for providing a clock cycle synchronized first and second LGO pulse and the complement of said second synchronized pulse LGO synchronized second LGO pulse; a first means responsive to said first and second clock synchronized LGO pulse for providing a first exclusive-OR signal characterized as the exclusive-OR of said first and second clock synchronized LGO impulse and for providing a complement second clock cycle delayed first exclusive-OR signal; and a second means responsive to said first synchronized LGO pulse and said clock signal for providing a second clock cycle signal delayed synchronized first LGO pulse.

Source: Google Patents

35 USC §181 Secrecy Order

Inventor

• 1ADRIAN K. DORSMAN

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