Two window optical scanner
AssigneeSymbol Technologies, Inc.
InventorEdward Barkan
Life of this patent
Estimating the term…
Abstract
The invention relates to a scanning device for reading bar code symbols, wherein the scanning device comprises a housing having a substantially horizontal surface and a substantially vertical surface. A motor rotates a polygon mirror, which reflects a light beam from a light source and redirects it toward a mirror array and out a window in the substantially horizontal window. Another motor rotates another polygon mirror, which reflects a light beam from a second light source and redirects it toward a second mirror array and out a window in the substantially vertical surface. A plurality of sensors detects light reflected back from a bar code and generates a plurality of electrical signals proportional to the intensity of the reflected light.
Claims19
A scanning device for reading bar code symbols comprising:
- a housing having a substantially horizontal surface with a substantially horizontal window and a substantially vertical surface having a substantially vertical window;
- a first polygon mirror and a first stationary mirror array;
- a first motor for rotating said first polygon mirror;
- a first light source for generating a first light beam that reflects off said first polygon mirror to project a first plurality of scan lines through said substantially horizontal window;
- a second polygon mirror and a second stationary mirror array;
- a second motor independent of the first motor for rotating said second polygon mirror;
- a second light source for generating a second light beam that reflects off said second polygon mirror to project a second plurality of scan lines through said substantially vertical window;
- and
- a plurality of sensors for detecting the intensity of light from the first and second plurality of scan lines reflected by a bar code symbol and for generating electrical signals proportional to the intensity of said reflected light.
A fixed-mount omnidirectional scanner comprising:
- at least one window;
- a scanning mechanism for scanning a bar code and producing a first electrical signal corresponding thereto;
- a decoder for decoding same;
- and
- a connector for receiving a second electrical signal from an undecoded hand-held scanner corresponding to a scanned bar code and for applying the second electrical signal to said decoder for decoding same.
A fixed-mount omnidirectional scanner comprising:
- at least one window;
- a scanning mechanism for scanning a bar code and producing a first electrical signal corresponding thereto;
- a decoder for decoding same;
- and
- a docking well for receiving a second electrical signal from an undecoded handheld scanner corresponding to a scanned bar code and for applying the second electrical signal to said decoder for decoding same.
A fixed-mount omnidirectional scanner comprising:
- at least one window;
- a scanning mechanism for scanning a bar code and producing a first electrical signal corresponding thereto;
- and
- a base station for receiving a second electrical signal from a cordless scanner.
Dependencies are inferred from the claim text.