Systems and methods for generating, reading and transferring identifiers

This invention describes a handheld device that records sounds using a microphone. It converts these sounds into a digital barcode, which can then be printed and attached to any object. When the device's camera scans the barcode, it plays back the original sound through its speaker.

Why it matters: Filed before smartphones had ubiquitous high-quality cameras and processing power. A modern smartphone can now perform all the claimed functions of recording, encoding to a barcode, and scanning to play audio.

Status: ExpiredProtection ended and was never renewed
How hard to build: ModerateCustom electronics, software logic, barcode generation/reading

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