Imaging based barcode scanner engine with multiple elements supported on a common printed circuit board

• US 9,111,159 B2
• Filed: 09/09/2011
• Issued: 08/18/2015
• Est. Priority Date: 09/09/2011
• Status: Active Grant

• Current Assignee: Metrologic Instruments Incorporated (Honeywell International Inc.)
• Original Assignee: Metrologic Instruments Incorporated (Honeywell International Inc.)
• Inventors: Liu, Yong, Tao, Xi, Wang, Ynjiun Paul
• Primary Examiner(s): GUDORF, LAURA A
• Application Number:
  US14/342,544
• Publication Number:
  US 20140346233A1
• Time in Patent Office: 1,439 Days
• Field of Search: 23546201-46249
• US Class Current: 1/1
• CPC Class Codes: G06K 7/10722 Photodetector array or CCD scanning
• CPC Class Codes: G06K 7/10732 Light sources
• CPC Class Codes: G06K 7/10831 Arrangement of optical elements, e.g. lenses, mirrors, prisms optical elements per se G02B
• CPC Class Codes: G06K 7/10851 Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device basic electronic circuitry H03
• CPC Class Codes: G06K 7/1098 the scanning arrangement having a modular construction
• CPC Class Codes: H05K 7/06 on insulating boards , e.g. wiring harnesses for printed circuits H05K1/18, H05K3/30

Abstract

An apparatus for use in decoding a bar code symbol may include an image sensor integrated circuit having a plurality of pixels, timing and control circuitry for controlling an image sensor, gain circuitry for controlling gain, and analog to digital conversion circuitry for conversion of an analog signal to a digital signal. The apparatus may also include a printed circuit board for receiving the image sensor integrated circuit. The connection between the image sensor integrated circuit and the printed circuit board characterized by a plurality of conductive adhesive connectors disposed between a plurality of electrode pads and a plurality of contact pads, where the conductive adhesive connectors provide electrical input/output and mechanical connections between the image sensor integrated circuit and the printed circuit board. The apparatus may be operative for processing image signals generated by the image sensor integrated circuit for attempting to decode the bar code symbol.

Claims

1. An apparatus for use in decoding a bar code symbol, the apparatus comprising:

an image sensor integrated circuit, the image sensor integrated circuit having an image sensor including a plurality of pixels arranged in a plurality of rows and columns of pixels, timing and control circuitry for controlling the image sensor, gain circuitry for controlling the gain of one or more signals, analog to digital conversion circuitry for conversion of an analog signal to a digital signal, and a plurality of electrode pads on a surface of the image sensor integrated circuit;

a printed circuit board receiving the image sensor integrated circuit, the printed circuit board having a plurality of contact pads disposed on a surface of the printed circuit board;

wherein a connection between said image sensor integrated circuit and said printed circuit board is characterized by a plurality of conductive adhesive connectors disposed between the plurality of electrode pads on the surface of the image sensor integrated circuit and the plurality of contact pads disposed on a surface of the printed circuit board, the conductive adhesive connectors providing electrical input/output and mechanical connections between said image sensor integrated circuit and said printed circuit board;

wherein the apparatus is operative for processing of image signals generated by the image sensor integrated circuit for attempting to decode the bar code symbol; and

a light source positioned on said printed circuit board, the apparatus being adapted to direct light from the light source toward a field of view of the apparatus, wherein the light source is connected to the printed circuit board by an adhesive conductive connector disposed between at least one contact pad disposed on a surface of the printed circuit board and at least one conductive projection extending away from an at least one electrode pad formed on the light source.

2. The apparatus of claim 1, further comprising a hand held housing encapsulating the image sensor integrated circuit.

3. The apparatus of claim 2, wherein the processing of image signals generated by the image sensor integrated circuit for attempting to decode the bar code symbol is performed within the housing.

4. The apparatus of claim 2, wherein the processing of image signals generated by the image sensor integrated circuit for attempting to decode the bar code symbol is performed by circuitry external to the housing.

5. The apparatus of claim 1, wherein the processing of image signals generated by the image sensor integrated circuit for attempting to decode the bar code symbol is performed by a circuit disposed on said printed circuit board.

6. The apparatus of claim 2, wherein the processing of image signals generated by the image sensor integrated circuit for attempting to decode the bar code symbol is performed by a computer external to the housing.

7. The apparatus of claim 1 wherein the light source is an LED.

8. The apparatus of claim 1 further comprising a light circuitry for controlling the operation of the light source, the light source electrically connected to the light circuitry, and the light circuitry disposed on said printed circuit board.

9. The apparatus of claim 1, wherein the light source is a light source of an illuminating subsystem that projects an illumination pattern.

10. The apparatus of claim 1, wherein the light source is a light source of an aiming subsystem for use in projecting an aiming pattern.

11. The apparatus of claim 1 further comprising an aimer light source positioned on said printed circuit board, the apparatus being adapted to direct light from the aimer light source toward a field of view of the apparatus.

12. An apparatus for use in decoding a bar code symbol, the apparatus comprising:

an image sensor integrated circuit, the image sensor integrated circuit having an image sensor including a plurality of pixels arranged in a plurality of rows and columns of pixels, timing and control circuitry for controlling the image sensor, gain circuitry for controlling the gain of one or more signals, analog to digital conversion circuitry for conversion of an analog signal to a digital signal, and a plurality of electrode pads on a surface of the image sensor integrated circuit;

a printed circuit board receiving the image sensor integrated circuit, the printed circuit board having a plurality of contact pads disposed on a surface of the printed circuit board;

wherein a connection between said image sensor integrated circuit and said printed circuit board is characterized by a plurality of conductive adhesive connectors disposed between the plurality of electrode pads on the surface of the image sensor integrated circuit and the plurality of contact pads disposed on a surface of the printed circuit board, the conductive adhesive connectors providing electrical input/output and mechanical connections between said image sensor integrated circuit and said printed circuit board;

wherein the apparatus is operative for processing of image signals generated by the image sensor integrated circuit for attempting to decode the bar code symbol; and

a first light source of an illumination subsystem and a second light source of an aiming subsystem positioned on said printed circuit board, the apparatus being adapted to direct light from the first light source and the second light source toward a field of view of the apparatus, wherein the first light source and the second light source are connected to the printed circuit board by an adhesive conductive connector disposed between at least one contact pad disposed on a surface of the printed circuit board and at least one conductive projection extending away from an at least one electrode pad formed on the first light source and the second light source.

13. The apparatus of claim 12, wherein the first light source and the second light source are provided by LEDs.

14. The apparatus of claim 12, wherein the processing of image signals generated by the image sensor integrated circuit for attempting to decode the bar code symbol is performed by a circuit disposed on said printed circuit board.

15. The apparatus of claim 12, comprising a hand held housing encapsulating the image sensor integrated circuit.

16. The apparatus of claim 15, wherein the processing of image signals generated by the image sensor integrated circuit for attempting to decode the bar code symbol is performed within the housing.

17. The apparatus of claim 15, wherein the processing of image signals generated by the image sensor integrated circuit for attempting to decode the bar code symbol is performed by circuitry external to the housing.

18. The apparatus of claim 15, wherein the processing of image signals generated by the image sensor integrated circuit for attempting to decode the bar code symbol is performed by a computer external to the housing.

19. The apparatus of claim 12, wherein the first light source projects an illumination pattern.

20. The apparatus of claim 12, wherein the second light source projects an aiming pattern.