Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Automatic route guidance vehicle
Reexamination Certificate
2007-07-03
2007-07-03
Nguyen, Cuong (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Automatic route guidance vehicle
C701S023000, C701S025000
Reexamination Certificate
active
10631465
ABSTRACT:
A robotic apparatus for traversing a selected area autonomously that senses orientation relative to the Earth's magnetic field or other “environmental” signals. The robotic apparatus is provided in two models, a master that can record directive and compass or “environmental signal” readings, or that can record received location information, to provide at least one command recorded on a machine-readable medium representing an instruction for traversing an area of interest, and a slave that lacks the recording capability. Both master and slave models can replay recorded commands, and compare the expected orientation from the command with an actual orientation sensed during autonomous operation. If an error exceeding a predetermined value is observed, a corrective action is taken. The robotic apparatus is able to utilize a tool to perform a task at one or more locations, such as cutting, shoveling and digging. In one embodiment, the robotic apparatus is a lawn mower.
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Hiscock & Barclay LLP
Milstein Joseph B
Nguyen Cuong
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