Resources Contact Us Home
Method and apparatus for recognizing code information

Image Number 2 for United States Patent #4136821.

A light source, a converging lens and a light responsive image sensor are optically coupled to recognize the code information such as bar codes recorded on an object. The light source supplies the code information with illumination light and the image sensor receives the reflected light through the converging lens to convert it into the image signal. The distance between the lens and the image sensor is adjusted automatically in response to the image signal such that clear reflected light is received by the image sensor, whereby correct information recognizing operation is attained.

  Recently Added Patents
Varying latency timers in a wireless communication system
Systems and methods for controlling registration of advancing substrates in absorbent article converting lines
Solid-state image capture device and image capture apparatus
Inhibition of HRP-3 using modified oligonucleotides
Processes for producing polyunsaturated fatty acids in transgenic organisms
Push mechanism for efficiently sending aggregated data items to client
Imaging lens with three lens elements, and electronic apparatus having the same
  Randomly Featured Patents
Device for determining the flow rate of a flowing medium
Security mailbox
Disposable container for heatable food products
Head feeding device including a screw shaft provided with a pair of grooves with one groove being provided with a lubricant
Blow-off device of a compressor unit and moisture separator used thereby
Animal litter container enclosure
Managing data in a subtended switch
Telescoping crane boom
Protective circuit breaker (I)
Automatic fold-pan assembly