| 摘要 |
<p>A self-contained two-dimensional bar code reader of the type having a light source (16) for illuminating a two-dimensional bar code symbol (400, 500, etc.) having data encoded therein, a photodetector (17) for producing signals in response to light returning from the symbol (400, 500, etc.), and a decoder (40, 64) coupled to receive said signals of said photodetector (17), said decoder (40, 64) having an output signal carrying decoded data of said symbol, wherein the improvement comprises: said decoder (40, 64) comprising a microcomputer (40) having a memory (42, 45) that includes a first portion (45) having an executable program (Listing No. 1) resident therein for decoding a two-dimensional bar code symbol, and a second portion (42) for holding data. <IMAGE></p> |
