Apparatus for scanning and downloading data

• US 5,294,784 A
• Filed: 03/16/1992
• Issued: 03/15/1994
• Est. Priority Date: 03/16/1992
• Status: Expired due to Term

• Current Assignee: NCR Corporation
• Original Assignee: NCR Corporation
• Inventors: Tooley, Thomas P., Zeik, Andrew C.
• Primary Examiner(s): Dolinar, Andrew M.
• Application Number:
  US07/852,423
• Time in Patent Office: 729 Days
• Field of Search: 235/467, 235/472, 235/462
• US Class Current: 235/462.15
• CPC Class Codes: G06K 7/10881 constructional details of hand-held scanners

Abstract

An apparatus which is a single portable device for scanning and downloading data. The apparatus employs a laser within an optical scanner to accomplish both scanning and downloading functions. In addition to the optical scanner, the apparatus employs control and communication circuitry for switching from scanning to downloading and for modulating an outgoing laser beam during downloading. A modulating material, such as a liquid crystal display or electrochromic lens, is excited to modulate the outgoing laser beam passing through it. The optical scanner also includes a motor-driven mirrored spinner which may be stopped to accomplish a high rate of data transfer during downloading using a highly directional beam.

Claims

1. An apparatus for scanning and downloading bar code data read from inventory items comprising:

an optical scanner including a laser for producing an outgoing laser beam;

switching means within the scanner for selecting between scanning bar codes on inventory items and downloading inventory item bar code data;

modulating means within the scanner for modulating the outgoing laser beam with the inventory item bar code data during data downloading;

control means within the scanner for processing and storing the inventory item bar code data, and for controlling operation of the scanner, the switching means, and the modulating means.

2. The apparatus as recited in claim 1, wherein the optical scanner further comprises:

a mirrored spinner; and

a motor coupled to the mirrored spinner which is controlled by the switching means.

3. The apparatus as recited in claim 2, wherein the mirrored spinner comprises a polygon having a predetermined number of mirrored facets.

4. The apparatus as recited in claim 3, wherein the number of mirrored facets comprises six.

5. The apparatus as recited in claim 2, wherein the optical scanner further comprises:

an optical routing element, including a mirror for collecting light reflected from bar code labels during scanning, the mirror having an aperture through which the outgoing laser beam travels; and

a detector for converting the reflected light into electrical signals based on the intensity of the reflected light.

9. The apparatus as recited in claim 1, wherein the modulating means comprises:

means within the control means for turning the laser on and off.

10. The apparatus as recited in claim 2, wherein the switching means comprises:

means within the scanner for deenergizing the motor.

11. The apparatus as recited in claim 1, wherein the scanner is portable.

6. The apparatus as recited in claim I, wherein the modulating means comprises:

a modulating material through which the outgoing laser beam passes; and

means for exciting the modulating material with an electrical signal containing data to be downloaded.

7. The apparatus as recited in claim 6, wherein the modulating material comprises a liquid crystal display.

8. The apparatus as recited in claim 6, wherein the modulating material comprises an electrochromic lens.

12. An apparatus for scanning and downloading data comprising:

an portable optical scanner including a laser for producing an outgoing laser beam, a mirrored spinner having a predetermined number of mirrored facets, a motor coupled to the mirrored spinner, a mirror for collecting light reflected from bar code labels during scanning, and a detector for converting the reflected light into electrical signals based on the intensity of the reflected light;

switching means within the scanner for controlling the motor, including means for deenergizing the motor during data downloading;

modulating means within the scanner for modulating the outgoing laser beam with data during data downloading including a modulating material through which the outgoing laser beam passes, and means for exciting the modulating material with an electrical signal containing the data to be downloaded; and

control means within the scanner for processing and storing data, and for controlling operation of the scanner, the switching means, the modulating means, and the demodulating means.

13. A method for downloading inventory item bar code data from an optical scanner comprising the steps of:

providing an optical scanner having a laser for producing an outgoing beam and a motor-driven mirrored spinner for reflecting the outgoing beam;

switching operation of the scanner from scanning to downloading the inventory item bar code data; and

modulating the outgoing laser beam with the inventory item bar code data to be downloaded.

14. The method as recited in claim 13, wherein the step of switching comprises the substep of:

deenergizing the motor coupled to the spinner.

15. The method as recited in claim 13, wherein the step of modulating comprises the substeps of:

providing a modulating material in the path of the outgoing laser beam; and

exciting the modulating material with an electrical signal containing the data to be downloaded.

16. The method as recited in claim 13, wherein the step of modulating comprises the substep of:

turning the laser on and off.

17. An apparatus for scanning and downloading inventory item bar code data comprising:

an optical scanner including a laser for producing an outgoing laser beam;

switching means within the scanner for selecting between scanning and downloading the inventory item bar code data;

modulating means within the scanner for modulating the outgoing laser beam with the inventory item bar code data during downloading including a modulating material through which the outgoing laser beam passes, and means for exciting the modulating material with an electrical signal containing the inventory item bar code data to be downloaded; and

control means within the scanner for processing and storing the inventory item bar code data, and for controlling operation of the scanner, the switching means, and the modulating means.

18. The apparatus as recited in claim 17, wherein the modulating material comprises a liquid crystal display.

19. The apparatus as recited in claim 17, wherein the modulating material comprises an electrochromic lens.

20. A method for downloading the inventory item bar code data from an optical scanner comprising the steps of:

providing an optical scanner having a laser for producing an outgoing beam and a motor-driven mirrored spinner for reflecting the outgoing beam;

switching operation of the scanner from scanning to downloading the inventory item bar code data; and

modulating the outgoing laser beam with the inventory item bar code data to be downloaded by providing a modulating material in the path of the outgoing laser beam and exciting the modulating material with an electrical signal containing the inventory item bar code data to be downloaded.