Lg Electronics Inc.

Deoghyeon Kim

Moonhyun Kim

Sangdoo Ha

Hyunsang Kim

Jinwook Lee

Keunhyung Lee

The present disclosure relates to diagnostic apparatus and method for home appliance which make it easy to diagnose a breakdown of a home appliance, using a signal including product information and outputted from the home appliance, in which a signal is converted in accordance with signal distortion generated in the process of transmitting the output signal or in a terminal, so that the product information of the home appliance is easily extracted, accuracy of a diagnosis result is improved, an after-sales service for a breakdown of the home appliance is easily provided, and reliability of the product is improved by the improvement of accuracy of the diagnosis result.

Diagnostic apparatus and method for home appliance

Provided are a home appliance and a method of outputting a signal sound for diagnosis. The home appliance includes: a selection unit for receiving a diagnosis command on the home appliance from a user; a memory for storing diagnosis data on the home appliance; a controller for processing the diagnosis data stored in the memory in order to generate a packet according to a diagnosis command input through the selection unit; a conversion unit for generating a frame including a combination of symbols, which respectively correspond to four different carrier frequencies, on the basis of data constituting the packet, according to a Quadrature Frequency Shift Keying (QFSK) method.

Home appliance and method of outputting signal sound for diagnosis

A home appliance, a home appliance diagnostic system, and an operation method are provided, which allow a user to easily perform smart diagnosis by image progress and simply operate an input device and to diagnose a status of a home appliance, by displaying setup of smart diagnosis in a menu image including characters and images and outputting explanation of progresses on a screen by stages in accordance with a set diagnosis method.

Home appliance, home appliance diagnostic system, and method

Provided are a home appliance and its system. The home appliance include: an input unit for inputting driving information; a data unit for storing a diagnosis logic; a control unit for diagnosing a state of the home appliance and whether a failure occurs according to the diagnosis logic on the basis of product information including the driving information inputted from the input unit, operation information detected during an operation, and failure information occurring during an operation, in order to generate a diagnosis result including the operation information and the failure information, and encoding transmission information including predetermined data for a diagnosis, which are selected from the driving operation, and the diagnosis result and outputting the encoded transmission information; a modulator for converting the encoded transmission information; and a sound output unit for outputting the transmission information converted by the modulator as a sound including a plurality of frequencies.

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Seoul, South Korea

Deoghyeon Kim