Appliance communication system

Details Appliance communication system Appliance communication system

1998-06-24

1999-11-16

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Remote indication over telephone line

340679, H04M 1100

Patent

active

059871059

ABSTRACT:
A home appliance, such as a laundry washing machine or refrigerator including a buzzer designed to sound an alarm or provide an audible indication of a certain condition is disclosed. The appliance may transmit information (such as diagnostic or fault codes and appliance usage information) to a remote service center without the need for a physical connection to a telephone line. The buzzer may be controlled to produce audible tones in a predetermined format which can be transmitted from the appliance, through the air and down a telephone line through a telephone handset to the service center. The signal is recorded at the service center and the data extracted. The data is then analyzed to obtain the fault and/or usage information.

REFERENCES:
patent: 5506892 (1996-04-01), Kojima et al.
patent: 5757643 (1998-05-01), Kuroda et al.

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