Portable scanning system including a surveillance tag deactivator
CA 1331056 C · Owner: Symbol Technologies, Inc. · Inventors: Swartz, Jerome
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for reading bar code symbols and for electronically monitoring articles including a surveillance tag having an activated and deactivated state including a scanner a, sensor having a field of view and operative for detecting at least a portion of light of variable intensity reflected off the symbol and for generating an electrical signal indicative of the detected light intensity. The apparatus further includes a processor to determine whether the reflected light of variable intensity is indicative of the presence of a predetermined indicia pattern such as a bar code symbol; and a deactivating module for transmitting a deactivating signal to said tag so as to change …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 26, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.