Abstract: An improvement to a prosthetic device which provides a spring member between first and second structural members that are rotatably connected to one another, the spring member providing predictable resistance as it is compressed by the rotation of the first and second structural members with respect to each other. The known resistance of the spring is used as an input to a model controlling a motor control circuit to provide counter-torque as rotational torque is applied to compress the spring.

Abstract: An improvement to a prosthetic device which provides a spring member between first and second structural members that are rotatably connected to one another, the spring member providing predictable resistance as it is compressed by the rotation of the first and second structural members with respect to each other. The known resistance of the spring is used as an input to a model controlling a motor control circuit to provide counter-torque as rotational torque is applied to compress the spring.

Abstract: An improvement to a prosthetic device which provides a spring member between first and second structural members that are rotatably connected to one another, the spring member providing predictable resistance as it is compressed by the rotation of the first and second structural members with respect to each other. The known resistance of the spring is used as an input to a model controlling a motor control circuit to provide counter-torque as rotational torque is applied to compress the spring.

Abstract: An improvement to a prosthetic device which provides a spring member between first and second structural members that are rotatably connected to one another, the spring member providing predictable resistance as it is compressed by the rotation of the first and second structural members with respect to each other. The known resistance of the spring is used as an input to a model controlling a motor control circuit to provide counter-torque as rotational torque is applied to compress the spring.

Abstract: An improvement to a prosthetic device which provides a spring member between first and second structural members that are rotatably connected to one another, the spring member providing predictable resistance as it is compressed by the rotation of the first and second structural members with respect to each other. The known resistance of the spring is used as an input to a model controlling a motor control circuit to provide counter-torque as rotational torque is applied to compress the spring.

Abstract: An improvement to a prosthetic device which provides a spring member between first and second structural members that are rotatably connected to one another, the spring member providing predictable resistance as it is compressed by the rotation of the first and second structural members with respect to each other. The known resistance of the spring is used as an input to a model controlling a motor control circuit to provide counter-torque as rotational torque is applied to compress the spring.

Abstract: A method of mowing multiple areas includes training the robotic mower to move across a space separating at least two areas, and initiating a mowing operation. Training the robotic mower to move across the space separating the areas includes moving the robotic mower to a traversal launch point of a first of the areas, storing data indicative of location of the traversal launch point, moving the robotic mower to a traversal landing point of a second of the areas, and storing data indicative of location of the traversal landing point. The mowing operation causes the robotic mower to autonomously and in sequence mow the first of the areas, move to the traversal launch point, move from the traversal launch point across the space to the traversal landing point, and then mow the second of the areas.

Abstract: A method of mowing an area with an autonomous mowing robot comprises storing, in non-transient memory of the robot, a set of geospatially referenced perimeter data corresponding to positions of the mowing robot as the mowing robot is guided about a perimeter of an area to be mowed, removing from the set of perimeter data one or more data points thereby creating a redacted data set and controlling the mowing robot to autonomously mow an area bounded by a boundary corresponding to the redacted data set, including altering direction of the mowing robot at or near a position corresponding to data in the redacted data set so as to redirect the robot back into the bounded area.

Abstract: A method of mowing multiple areas includes training the robotic mower to move across a space separating at least two areas, and initiating a mowing operation. Training the robotic mower to move across the space separating the areas includes moving the robotic mower to a traversal launch point of a first of the areas, storing data indicative of location of the traversal launch point, moving the robotic mower to a traversal landing point of a second of the areas, and storing data indicative of location of the traversal landing point. The mowing operation causes the robotic mower to autonomously and in sequence mow the first of the areas, move to the traversal launch point, move from the traversal launch point across the space to the traversal landing point, and then mow the second of the areas.

Abstract: A method of mapping an area to be mowed with an autonomous mowing robot comprises receiving mapping data from a robot lawnmower, the mapping data specifying an area to be mowed and a plurality of locations of beacons positioned within the area to be mowed, and receiving at least first and second geographic coordinates for first and second reference points that are within the area and are specified in the mapping data. The mapping data is aligned to a coordinate system of a map image of the area using the first and second geographic coordinates. The map image is displayed based on aligning the mapping data to the coordinate system.

Abstract: A method of mowing an area with an autonomous mowing robot comprises storing, in non-transient memory of the robot, a set of geospatially referenced perimeter data corresponding to positions of the mowing robot as the mowing robot is guided about a perimeter of an area to be mowed, removing from the set of perimeter data one or more data points thereby creating a redacted data set and controlling the mowing robot to autonomously mow an area bounded by a boundary corresponding to the redacted data set, including altering direction of the mowing robot at or near a position corresponding to data in the redacted data set so as to redirect the robot back into the bounded area.