Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
The method of electronically rotating the heading signal output of a solid state Hall effect compass having a reference driving signal connected thereto to provide an electronically rotated heading signal, comprising the steps of: (a) inputting a rotation number that determines the magnitude of rotation desired to a delay means, (b) generating a timing signal that occurs at a fixed time delay following a positive going zero transition of said reference driving signal; (c) time delaying said heading signal output connected to the delay means wherein said delay depends on the rotation number, and (d) measuring the phase difference between the timing signal and the time delayed heading signal output of the delay means as an indication of an electronically rotated heading signal.
Claim 2
Independent Claim
123 words
The method of electronically rotating the heading signal output of a solid state Hall effect compass having a reference driving signal connected thereto to provide an electronically rotated heading signal, comprising the steps of: (a) inputting a rotation number that determines the magnitude of rotation desired to a delay means, (b) generating a timing signal that occurs at a fixed time delay following a positive going zero transition of said reference driving signal; (c) time delaying said heading signal output connected to the delay means wherein said delay depends on the rotation number, and (d) measuring the phase difference between the timing signal and the time delayed heading signal output of the delay means as an indication of an electronically rotated heading signal.
Claim 3
Dependent Claim
46 words
The method of electronically rotating the heading signal of a solid state compass as set forth in claim 1 including the step of generating a clock signal for synchronizing the steps of generating a timing signal, time delaying said heading signal and measuring the phase difference.
Claim 4
Dependent Claim
106 words
Apparatus for electronically rotating the magnetic heading signal output of a solid state compass, comprising: (a) means for generating a rotation number signal that determines the magnitude of rotation desired, (b) variable delay means responsive to the magnetic heading signal output and receiving the rotation number signal for time delaying the heading signal by an amount determined by the rotation number signal, (c) means for generating a timing signal, and (d) means receiving the time delayed heading signal and the timing signal for measuring the phase difference between the timing signal and the time delayed heading signal as an indication of an electronically rotated heading signal.
Claim 5
Dependent Claim
106 words
Apparatus for electronically rotating the magnetic heading signal output of a solid state compass, comprising: (a) means for generating a rotation number signal that determines the magnitude of rotation desired, (b) variable delay means responsive to the magnetic heading signal output and receiving the rotation number signal for time delaying the heading signal by an amount determined by the rotation number signal, (c) means for generating a timing signal, and (d) means receiving the time delayed heading signal and the timing signal for measuring the phase difference between the timing signal and the time delayed heading signal as an indication of an electronically rotated heading signal.
Claim 6
Dependent Claim
38 words
Apparatus for electronically rotating the heading signal of a solid state compass as set forth in claim 3 including means for generating a driving signal to the solid state compass and said means for generating a timing signal.
Claim 7
Dependent Claim
43 words
Apparatus for electronically rotating the heading signal of a solid state compass as set forth in claim 4 wherein said means for generating a rotation number signal includes an array of switches for programming the rotation number signal to said variable delay means.
Claim 8
Dependent Claim
52 words
Apparatus for electronically rotating the heading signal of a solid state compass as set forth in claim 4 wherein said means for generating a timing signal includes delay means responsive to the driving signal such that the timing signal occurs a fixed time delay following a transition point of the driving signal.