Electronic angle generator

Claim 2

An electronic angle generator system for generating an output voltage proportional to an angle, the tangent of which is a ratio of two input voltages to the generator, comprising: a. a first and a second input channel means to which input voltages X and Y are applied, respectively, b. a closed computing loop circuit means for generating an output voltage proportional to an angle theta by solving the equation the outputs of said first and second input channel means being applied to said computing loop circuit means, c. said first input channel means comprising 1. a first input terminal to which the first input voltage X is applied, 2. said first input terminal being connected to: the normally closed contact of a first switch means, a first channel voltage inverting means whose output is connected to the normally open contact of said first switch means, and a first comparator circuit means whose output is connected to a first switch operating means which operates to switch said first switch means from its normally closed contact to its normally open contact when the input voltage X to said first channel input terminal goes negative, 3. a first multiplier means whose first of two inputs is connected to said first switch means, the voltage to the first input to said first multiplier means being a positive voltage for both positive or negative first channel voltagE X inputs, d. said second input channel means comprising

Claim 3

A second input terminal to which the second input voltage Y is applied, 2. said second input terminal being connected to: the normally open contact of a second switch means, a second channel voltage inverting means whose output is connected to the normally closed contact of said second switch means, and a second comparator circuit means whose output is connected to a second switch operating means which operates to switch said second switch means from its normally closed contact to its normally open contact when the input voltage Y to said second channel input terminal goes positive, 3. a second multiplier means whose first of two inputs is connected to said second switch means, the voltage to the first input to said second multiplier means being a negative voltage for both positive or negative second channel voltage Y inputs, e. said closed computing loop circuit means solving said equation for the angle theta by restricting computation to first quadrant angles and using logic circuit means for logical interrelations of input polarities to determine transformations to make said output voltage proportional to said angle over all four quadrants.

Claim 4

A second input terminal to which the second input voltage Y is applied, 2. said second input terminal being connected to: the normally open contact of a second switch means, a second channel voltage inverting means whose output is connected to the normally closed contact of said second switch means, and a second comparator circuit means whose output is connected to a second switch operating means which operates to switch said second switch means from its normally closed contact to its normally open contact when the input voltage Y to said second channel input terminal goes positive, 3. a second multiplier means whose first of two inputs is connected to said second switch means, the voltage to the first input to said second multiplier means being a negative voltage for both positive or negative second channel voltage Y inputs, e. said closed computing loop circuit means solving said equation for the angle theta by restricting computation to first quadrant angles and using logic circuit means for logical interrelations of input polarities to determine transformations to make said output voltage proportional to said angle over all four quadrants.

Claim 5

said first input terminal being connected to: the normally closed contact of a first switch means, a first channel voltage inverting means whose output is connected to the normally open contact of said first switch means, and a first comparator circuit means whose output is connected to a first switch operating means which operates to switch said first switch means from its normally closed contact to its normally open contact when the input voltage X to said first channel input terminal goes negative,

Claim 6

said first input terminal being connected to: the normally closed contact of a first switch means, a first channel voltage inverting means whose output is connected to the normally open contact of said first switch means, and a first comparator circuit means whose output is connected to a first switch operating means which operates to switch said first switch means from its normally closed contact to its normally open contact when the input voltage X to said first channel input terminal goes negative,

Claim 7

said second input terminal being connected to: the normally open contact of a second switch means, a second channel voltage inverting means whose output is connected to the normally closed contact of said second switch means, and a second comparator circuit means whose output is connected to a second switch operating means which operates to switch said second switch means from its normally closed contact to its normally open contact when the input voltage Y to said second channel input terminal goes positive,

Claim 8

said second input terminal being connected to: the normally open contact of a second switch means, a second channel voltage inverting means whose output is connected to the normally closed contact of said second switch means, and a second comparator circuit means whose output is connected to a second switch operating means which operates to switch said second switch means from its normally closed contact to its normally open contact when the input voltage Y to said second channel input terminal goes positive,

Claim 9

An electronic angle generator system for generating an output voltage proportional to an angle theta , the tangent of which is a ratio of two input voltage X and Y to the generator, comprising: a. first and second input channel means to which input voltages X and Y are applied, respectively, b. a closed computing loop circuit means for generating an output voltage proportional to an angle theta by solving the equation by implicit computation restricting computation to first quadrant angles using logic circuit means for logical interrelations of input polarities to determine transformations to make said output voltage proportional to said angle over all four quadrants, c. said first input channel means comprising:

Claim 10

An electronic angle generator system for generating an output voltage proportional to an angle theta , the tangent of which is a ratio of two input voltage X and Y to the generator, comprising: a. first and second input channel means to which input voltages X and Y are applied, respectively, b. a closed computing loop circuit means for generating an output voltage proportional to an angle theta by solving the equation by implicit computation restricting computation to first quadrant angles using logic circuit means for logical interrelations of input polarities to determine transformations to make said output voltage proportional to said angle over all four quadrants, c. said first input channel means comprising:

Claim 11

said first input terminal being connected to: the normally closed contact of a first switch means, a first channel voltage inverting means whose output is connected to the normally open contact of said first switch means, and a first comparator circuit means whose output is connected to a first switch operating means which operates to switch said first switch means from its normally closed contact to its normally open contact when the input voltage X to said first channel input terminal goes negative,

Claim 12

said first input terminal being connected to: the normally closed contact of a first switch means, a first channel voltage inverting means whose output is connected to the normally open contact of said first switch means, and a first comparator circuit means whose output is connected to a first switch operating means which operates to switch said first switch means from its normally closed contact to its normally open contact when the input voltage X to said first channel input terminal goes negative,

Claim 13

a first loop voltage inverting means,

Claim 14

a first loop voltage inverting means,

Claim 15

said second input terminal being connected to: the normally open contact of a second switch means, a second channel voltage inverting means whose output is connected to the normally closed contact of said second switch means, and a second comparator circuit means whose output is connected to a second switch operating means which operates to switch said second switch means from its normally closed contact to its normally open contact when the input voltage Y to said second channel input terminal goes positive,

Claim 16

said second input terminal being connected to: the normally open contact of a second switch means, a second channel voltage inverting means whose output is connected to the normally closed contact of said second switch means, and a second comparator circuit means whose output is connected to a second switch operating means which operates to switch said second switch means from its normally closed contact to its normally open contact when the input voltage Y to said second channel input terminal goes positive,

Claim 17

a second multiplier means whose first of two inputs is connected to said second switch means, the voltage to the first input to said second multiplier means being a negative voltage for both positive or negative second channel voltage Y inputs, e. said closed computing loop circuit means comprising:

Claim 18

a second multiplier means whose first of two inputs is connected to said second switch means, the voltage to the first input to said second multiplier means being a negative voltage for both positive or negative second channel voltage Y inputs, e. said closed computing loop circuit means comprising:

Claim 19

a second loop voltage inverting means,

Claim 20

a second loop voltage inverting means,

Claim 21

a first multiplier means whose first of two inputs is connected to said first switch means, the voltage to the first input to said first multiplier means being a positive voltage for both positive or negative first channel voltage X inputs, d. said second input channel means comprising:

Claim 22

a first multiplier means whose first of two inputs is connected to said first switch means, the voltage to the first input to said first multiplier means being a positive voltage for both positive or negative first channel voltage X inputs, d. said second input channel means comprising:

Claim 23

a second multiplier means whose first of two inputs is connected to said second switch means, the voltage to the first input to said second multiplier means being a negative voltage for both positive or negative second channel voltage Y inputs, e. said closed computing loop circuit means solving said equation for the angle theta by restricting computation to first quadrant angles and using logic circuit means for logical interrelations of input polarities to determine transformations to make said output voltage proportional to said angle over all four quadrants.

Claim 24

a second multiplier means whose first of two inputs is connected to said second switch means, the voltage to the first input to said second multiplier means being a negative voltage for both positive or negative second channel voltage Y inputs, e. said closed computing loop circuit means solving said equation for the angle theta by restricting computation to first quadrant angles and using logic circuit means for logical interrelations of input polarities to determine transformations to make said output voltage proportional to said angle over all four quadrants.

Claim 25

a first multiplier means whose first of two inputs is connected to said first switch means, the voltage to the first input to said first multiplier means being a positive voltage for both positive or negative first channel voltagE X inputs, d. said second input channel means comprising

Claim 26

a first multiplier means whose first of two inputs is connected to said first switch means, the voltage to the first input to said first multiplier means being a positive voltage for both positive or negative first channel voltagE X inputs, d. said second input channel means comprising

Claim 27

an output terminal, and

Claim 28

an output terminal, and

Claim 29

a sine-cosine generator means whose input represents the angle theta which can vary from plus 180* and having first and second outputs representing the sine and cosine of the angle theta , respectively, f. the output of said integrator means connected to the input of said first loop voltage inverting means and to the normally closed contact of a third switch means, g. the output of said first loop voltage inverting means being connected to the normally open contact of said third switch means and to the input to said sine-cosine generator means, said first loop voltage inverting means output providing correct signal polarity to the input of said sine-cosine generator means for stable loop operation, h. the first output of said sine-cosine generator means being connected to the second of the two inputs to said first multiplier means, and the second output of said sine-cosine generator means being connected to the second of the two inputs to said second multiplier means, i. the output of said first multiplier means being directly proportional to the voltage X sine theta and connected to the first input to said integrator means, j. the output of said second multiplier means being directly proportional to the voltage -Y cosine theta and connected to the second input to said integrator means, the first and second inputs to said integrator means being summed by said integrator means, k. said third switch means being connected to the input to said second loop voltage inverting means and to the normally closed contact of a fourth switch means, said third switch means also being operated by said second switch operating means which operates to switch said third switch means from its normally closed contact to its normally open contact when the input voltage Y to said second channel input terminal goes negative,

Claim 30

a sine-cosine generator means whose input represents the angle theta which can vary from plus 180* and having first and second outputs representing the sine and cosine of the angle theta , respectively, f. the output of said integrator means connected to the input of said first loop voltage inverting means and to the normally closed contact of a third switch means, g. the output of said first loop voltage inverting means being connected to the normally open contact of said third switch means and to the input to said sine-cosine generator means, said first loop voltage inverting means output providing correct signal polarity to the input of said sine-cosine generator means for stable loop operation, h. the first output of said sine-cosine generator means being connected to the second of the two inputs to said first multiplier means, and the second output of said sine-cosine generator means being connected to the second of the two inputs to said second multiplier means, i. the output of said first multiplier means being directly proportional to the voltage X sine theta and connected to the first input to said integrator means, j. the output of said second multiplier means being directly proportional to the voltage -Y cosine theta and connected to the second input to said integrator means, the first and second inputs to said integrator means being summed by said integrator means, k. said third switch means being connected to the input to said second loop voltage inverting means and to the normally closed contact of a fourth switch means, said third switch means also being operated by said second switch operating means which operates to switch said third switch means from its normally closed contact to its normally open contact when the input voltage Y to said second channel input terminal goes negative,