| US 7,489,985 B2 | ||
| Robot cleaner system and a method for returning to external recharging apparatus | ||
| Jang-Youn Ko, Gwangju (Korea, Republic of); Sam-Jong Jeung, Gwanju (Korea, Republic of); Jeong-Gon Song, Gwangju (Korea, Republic of); Ki-Man Kim, Gwangju (Korea, Republic of); Ju-Sang Lee, Gwangju (Korea, Republic of); and Kwang-Soo Lim, Gemcheon-Gu (Korea, Republic of) | ||
| Assigned to Samsung Gwangju Electronics Co., Ltd., Gwangju (Korea, Republic of) | ||
| Filed on Mar. 09, 2005, as Appl. No. 11/75,472. | ||
| Claims priority of application No. 10-2004-0086109 (KR), filed on Oct. 27, 2004. | ||
| Prior Publication US 2006/0087273 A1, Apr. 27, 2006 | ||
| Int. Cl. G05B 15/00 (2006.01) | ||
| U.S. Cl. 700—259 [700/245; 318/568.12] | 10 Claims |
| 1. A robot cleaner system comprising:
a first transmitter generating first infrared signals, the first transmitter being associated with an external apparatus;
a second transmitter generating second infrared signals, the second transmitter being associated with the external apparatus,
the second infrared signals having less strength than the first infrared signals and having a different code than the first
infrared signals, wherein the codes of the infrared signals differ in wave size or shape;
a receiving part simultaneously receiving the first and second infrared signals, the receiving part being associated with
a robot cleaner; and
a control part for controlling a movement of the robot cleaner based upon the first and second infrared signals so that the
robot cleaner is moved to a desired position with respect to the external apparatus.
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