Wand-Type Bar Code Reader
Original Publication Date: 1984-May-01
Included in the Prior Art Database: 2005-Feb-03
A low cost wand-type bar code reader having improved sensitivity and resolution is described. As indicated in Fig. 1, this bar code reader includes a low cost hand-held wand 10 which is connected by means of a flexible optical fiber cable 11 to a light-emitting and receiving unit 12. In use, the tip of the wand 10 is moved across the bar code pattern 13 printed on an article of merchandise 14 and unit 12 produces a high quality electrical signal which accurately represents the bar code pattern. This signal is fed to the appropriate data processing circuitry for driving cash register apparatus, record keeping apparatus, etc. Wand 10 is of the low cost throw-away type which is simply discarded and replaced by a new one when it becomes damaged or worn out. As such, it contains no electronics and is of simple construction.