Abstract: A hand held bar code scanning device having a tactile feature in which the hand held device vibrates upon indication of a successful bar code scan. The bar code scanning device includes a scanning circuit, which outputs an acknowledge signal that indicates a successful scan. This acknowledge signal is received by a switch, which closes when the acknowledge signal is in an active state. The input of the switch is connected to a reference potential, and the output of the switch is connected to a vibration motor. When the switch closes, the reference potential is applied to the vibration motor, thereby causing the hand held bar code scanning device to vibrate. This vibration notifies the hand held operator of a successful scan.

Abstract: A hand held bar code scanning device includes scanning circuitry to conduct bar code scanning and a manually actuated optical trigger switch, connected to the scanning circuitry, to initiate bar code scanning.

Abstract: In order to alleviate condensation which can cause window fogging or frosting conditions when the scanner is used in frigid environments as in refrigerated warehouses, a holder for the scanner is provided which may be located on a forklift or at a strategic location where rapid temperature changes can occur. The holder defines a chamber having doors defined by brushes which contact each other and which are located at one end and across at least a part of the bottom of a housing providing the chamber. The bar code scanner has a head and a handle which may be inserted through the end door into the chamber and supported by a shoulder surface of the bottom of the head around the handle. The doors seal the chamber while having sufficient permeability to allow the escape of moisture. The inside of the chamber may be heated to a temperature which alleviates any fogging.