Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2020/145729
Kind Code:
A1
Abstract:
The present invention relates to an air conditioner, which comprises a plurality of indoor units distributed over a plurality of floors in a building, a controller for monitoring and controlling the plurality of indoor units, and a wireless communication unit in which the controller, the plurality of indoor units and a single outdoor unit transmit and receive data by using a wireless communication method, wherein the wireless communication unit includes a transmitter and a receiver that use sub-giga band frequencies, the transmitter includes an optical orthogonal code generator for primary beaconing source data by using optical orthogonal codes, and a narrowband chaotic signal generator for secondary beaconing the primary beaconed source data by using chaotic signals, and the data is sequentially encrypted through the optical orthogonal code generator and the narrowband chaos signal generator and then transmitted.
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Inventors:
LEE KWONHYUNG (KR)
Application Number:
PCT/KR2020/000481
Publication Date:
July 16, 2020
Filing Date:
January 10, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
F24F11/56; H04B1/04; H04B1/12; H04B1/18; H04J13/12; H04J14/00; H04L9/00
Foreign References:
| KR20180106476A | 2018-10-01 | |||
| KR100818246B1 | 2008-04-02 | |||
| KR100635535B1 | 2006-10-17 | |||
| KR20100123486A | 2010-11-24 | |||
| JPS6022051B2 | 1985-05-30 |
Attorney, Agent or Firm:
PARK, Byung Chang (KR)
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