07332890 is referenced by 212 patents and cites 371 patents.

A method for energy management in a robotic device includes providing a base station for mating with the robotic device, determining a quantity of energy stored in an energy storage unit of the robotic device, and performing a predetermined task based at least in part on the quantity of energy stored. Also disclosed are systems for emitting avoidance signals to prevent inadvertent contact between the robot and the base station, and systems for emitting homing signals to allow the robotic device to accurately dock with the base station.

Title
Autonomous robot auto-docking and energy management systems and methods
Application Number
10/762219
Publication Number
7332890 (B2)
Application Date
January 21, 2004
Publication Date
February 19, 2008
Inventor
Philip R Mass
Denver
CO, US
James Lynch
Georgetown
MA, US
Clara Vu
Cambridge
MA, US
Daniel Ozick
Newton
MA, US
David A Cohen
Brookline
MA, US
Agent
Fish & Richardson P C
Assignee
iRobot Corporation
MA, US
IPC
H02J 7/00
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