Card reader for transmission of data by sound

Details Card reader for transmission of data by sound Card reader for transmission of data by sound

1998-08-03

2000-10-10

Tremblay, Mark

Registers

Coded record sensors

Particular sensor structure

379357, G06K 500

Patent

active

06129277&

ABSTRACT:
A portable card reader is designed to be carried in a wallet or purse. In a first embodiment, the card reader has an electromagnetic head that reads information from a magnetic strip of a card. In a second embodiment, information is read from the card by an array of Hall sensors. In both embodiments, the information read from the card is converted to a sequence of electronic bursts of predetermined frequency, preferably in the audible or ultrasound range. The sound signals are output by a speaker to the microphone of a telephone. The signal is then transmitted over the telephone lines to a remote receiver. The receiver then converts the sound bursts into signal pulses which can be read using the computer software of a conventional card reader.

REFERENCES:
patent: 4197987 (1980-04-01), Lazzari
patent: 5524072 (1996-06-01), Labaton et al.
patent: 5539819 (1996-07-01), Sonoyama et al.
patent: 5561710 (1996-10-01), Helms
patent: 5636271 (1997-06-01), Paterno et al.
patent: 5740232 (1998-04-01), Pailles et al.
patent: 5764742 (1998-06-01), Howard et al.

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