Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Reexamination Certificate
2007-03-27
2007-03-27
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
C318S568120, C318S568160, C180S167000, C180S168000, C180S169000, C700S301000, C700S302000, C700S022000, C700S023000, C700S024000, C700S025000, C700S026000, C901S001000, C901S046000, C901S047000
Reexamination Certificate
active
11221392
ABSTRACT:
The present invention discloses a system and method for confining a robot to a particular space. The system includes a portable barrier signal transmitter that produces a barrier signal primarily along an axis, and a mobile robot capable of avoiding the barrier signal upon detection of the barrier signal. In the preferred embodiment the barrier signal is emitted in an infrared frequency and the robot includes an omni-directional signal detector. Upon detection of the signal, the robot turns in a direction selected by a barrier avoidance algorithm until the barrier signal is no longer detected.
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Jones Joseph L.
Mass Philip R.
Donovan Lincoln
Fish & Richardson P.C.
Glass Erick
iRobot Corporation
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