All-in-one learning pen with optical identification (OID) of hidden code

All-in-one learning pen with optical identification (OID) of hidden code

  • CN 2,779,492 Y
  • Filed: 12/09/2004
  • Issued: 05/10/2006
  • Est. Priority Date: 12/09/2004
  • Status: Active Grant
First Claim
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1. , a kind of stealthy sign indicating number optical identification monomer learning pen, comprise shaft-like housing, it is characterized in that, also comprise the signal processing circuit wiring board that is arranged in the described housing cavity, be arranged on described housing front end, and the sensing head that is electrically connected with described wiring board, be arranged on the described housing, and a plurality of controls that are electrically connected with described wiring board also are provided with loudspeaker and output plughole by strong in described housing, side at housing is provided with memory card socket, is provided with power supply at the rear portion of described housing.

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