Optical Patents (Class 235/454)
- Bar code having a plurality of bars with different heights (e.g., Postnet (Class 235/462.02)
- Circular bar code (e.g., concentric circles or sun burst) (Class 235/462.03)
- Bar code with bars of more than two colors (e.g., multicolored bar code, multilevel gray) (Class 235/462.04)
- Means to read bar code on a transparent medium (e.g., film) (Class 235/462.05)
- Light level adaptation (Class 235/462.06)
- Means to decode multiple types or formats of bar code symbols (e.g., UPC, JAN, EAN, etc.) (Class 235/462.07)
- Bar code location or selection (Class 235/462.08)
- Means to decode a 2-D bar code (Class 235/462.1)
- Bar code stitching (e.g., forming a complete bar code from several partial scans) (Class 235/462.12)
- Combined with diverse art device (e.g., security tag deactivator) (Class 235/462.13)
- Stationary bar code reader (Class 235/462.14)
- Programming or computer interface feature (Class 235/462.15)
- Bar width determination (Class 235/462.16)
- Aiming or positioning adjunct (e.g., viewfinder, pointer, or positioning aid) (Class 235/462.2)
- Extended reader working range (e.g., multiple focal planes) (Class 235/462.22)
- Reader processing circuitry (Class 235/462.25)
- Scanner power on/off (Class 235/462.3)
- Specific scanning detail (e.g., scanner with a specific scanning field of view) (Class 235/462.32)
- Using an imager (e.g., CCD) (Class 235/462.41)
- Specified housing or mounting detail (Class 235/462.43)