Patent ID: 8532996

Claim:
An audible post-it system, comprising: a post-it note printed with an index for being stuck on a surface of an object, the index being formed of a specific optical module readable material, wherein the index comprises a plurality of point sub-indexes in an isotropic arrangement; and an optical reading and recording device including: an optical module for reading an image of the index on the post-it note; a switch for switching the optical reading and recording device to be at a recording state or a playing state; a storage device for temporarily storing data; an audio recording device for receiving a voice and converting the voice into a digital audio for being stored in the storage device; an audio playing device for outputting and playing the digital audio stored in the storage device; and a processor for retrieving the index based on the image of the index; wherein, when the optical reading and recording device is at the recoding state, the optical module reads the image of the index printed on the post-it note, and the processor obtains the index according to the image of the index, and matches the index with the digital audio; and when the optical reading and recording device is at the playing state, the optical module reads the image of the index printed on the post-it note, and the processor retrieves the index according to the image of the index and further obtains the digital audio matched with the index so as to send the digital audio to the audio playing device for playing.