Finger Tip Data Reading Device

• US 20090261171A1
• Filed: 06/28/2009
• Published: 10/22/2009
• Est. Priority Date: 04/07/2003
• Status: Active Grant

• Current Assignee: Silverbrook Research Pty Limited
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Rusman, Jan, Silverbrook, Kia, Lapstun, Paul
• Granted Patent: US 7,878,408 B2
• Time in Patent Office: Days
• US Class Current: 235/462.440
• CPC Class Codes: G06F 3/014 Hand-worn input/output arrangements, e.g. data gloves
• CPC Class Codes: G06F 3/0321 by optically sensing the absolute position with respect to a regularly patterned surface forming a passive digitiser, e.g. pen optically detecting position indicative tags printed on a paper sheet constructional details of pen-shaped pointing devices G06F3/03545, G06F3/03542, G06F3/037
• CPC Class Codes: G06K 7/10554 Moving beam scanning
• CPC Class Codes: G06K 7/10623 Constructional details
• CPC Class Codes: G06K 7/10693 for omnidirectional scanning
• CPC Class Codes: G06K 7/10722 Photodetector array or CCD scanning
• CPC Class Codes: G06K 7/10772 Moved readers, e.g. pen, wand
• CPC Class Codes: G06Q 10/00 Administration; Management
• CPC Class Codes: G06Q 10/087 Inventory or stock management, e.g. order filling, procurement or balancing against orders
• CPC Class Codes: G06Q 20/20 Point-of-sale [POS] network systems
• CPC Class Codes: G06Q 30/02 Marketing; Price estimation or determination; Fundraising
• CPC Class Codes: G06Q 30/0207 Discounts or incentives, e.g. coupons or rebates
• CPC Class Codes: G06Q 30/0212 Chance discounts or incentives
• CPC Class Codes: G06Q 30/0217 involving input on products or services in exchange for incentives or rewards
• CPC Class Codes: G06Q 30/0236 Incentive or reward received by requiring registration or ID from user
• CPC Class Codes: G06Q 30/0259 based on store location
• CPC Class Codes: G06Q 30/0267 Wireless devices
• CPC Class Codes: G06Q 30/0601 Electronic shopping [e-shopping]
• CPC Class Codes: H04N 23/20 for generating image signals from infrared radiation only
• CPC Class Codes: H04N 25/59 by controlling the amount of charge storable in the pixel, e.g. modification of the charge conversion ratio of the floating node capacitance
• CPC Class Codes: H04N 25/671 : for non-uniformity detection or correction
• CPC Class Codes: H04N 25/745 : Circuitry for generating timing or clock signals
• CPC Class Codes: H04N 25/75 : Circuitry for providing, modifying or processing image signals from the pixel array
• CPC Class Codes: H04N 25/767 : Horizontal readout lines, multiplexers or registers
• CPC Class Codes: H04N 25/77 : Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
• CPC Class Codes: H04N 25/778 : comprising amplifiers shared between a plurality of pixels, i.e. at least one part of the amplifier must be on the sensor array itself
• CPC Class Codes: H04N 25/7795 : Circuitry for generating timing or clock signals
• CPC Class Codes: H04N 25/78 : Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters
• CPC Class Codes: H04N 3/1568 : for disturbance correction or prevention within the image-sensor, e.g. biasing, blooming, smearing correction circuits H04N25/62
• CPC Class Codes: H04N 5/33 : Transforming infrared radiation cameras or camera modules for generating image signals from infrared radiation H04N23/20; circuitry of SSIS for transforming infrared radiation into image signals H04N25/20

Abstract

A reading device for reading an interface surface provided on a product item, the interface surface having disposed thereon coded data. The reading device includes: a harness which is configured to tight fittingly receive at least a portion of a user'"'"'s hand; a housing coupled to the harness, the housing including a void configured to tight fittingly receive therewithin a finger tip portion of a finger of the user'"'"'s hand received within the harness, the housing including an aperture in a wall of the housing which is located, in use, adjacent the underside of the finger tip portion of the finger; a sensor provided in the housing for sensing at least some of the coded data through the aperture; and a processor for decoding at least some of the sensed coded data.

Claims

1. A reading device for reading an interface surface provided on a product item, the interface surface having disposed thereon coded data, the coded data being indicative of an identity of the product item, the reading device including:

a housing including a void configured to receive a finger tip portion of a finger of a user'"'"'s hand, the housing further including an aperture in a wall of the housing which is located, in use, adjacent the underside of the finger tip portion of the finger;

a radiation source provided in the housing for illuminating the interface surface through the aperture, the radiation source being strobed;

a sensor provided in the housing for sensing at least some of the coded data through the aperture, the sensing of coded data being synchronised with the strobing of the radiation source; and

a processor for decoding at least some of the sensed coded data, and for determining product identity data indicative of the identity of the product item.

2. The reading device of claim 1 further comprising a harness which is configured to receive at least a portion of the user'"'"'s hand, the housing being coupled to the harness.

3. The reading device of claim 2, wherein the harness is a glove.

4. The reading device of claim 1, wherein the housing is a thimble.

5. The reading device of claim 1 further including:

a prism positioned between the aperture and the sensor, for directing radiation reflected from the interface surface towards the sensor; and

,

a lens positioned between the prism and the sensor, for focusing the directed radiation onto the sensor.

6. The reading device of claim 1, wherein in use the aperture is positioned so as to allow the sensor to sense coded data when the user grasps a product item.

7. The reading device of claim 1, wherein the reading device includes an image processor provided in the housing and coupled to the sensor, the image processor being for at least one of.

performing image processing functions;

controlling the image sensor; and

,

controlling the radiation source provided in the housing.

8. The reading device of claim 7, wherein the image processor includes an internal memory, and wherein the image processor is for:

receiving images from the image sensor;

storing the received images in the internal memory; and

transferring the stored images to the processor.

9. The reading device of claim 1, wherein the processor:

determines the product identity data of the product item during a read event; and

,

generates read data representing the identity of the product item if at least one of;

the determined product identity data is different to product identity data determined during previous read events; and

,

the determined product identity data has not been previously determined.

10. The reading device of claim 9, wherein the product identity data is uniquely indicative of each respective product item.

11. The reading device of claim 2, wherein the processor is housed within a processing unit which is coupled to the a portion of the harness which, in use, is adjacent a surface opposite to a palm of the user'"'"'s hand, wherein a data cable extends between the housing and the processing unit to transfer, from the sensor to the processor, image data indicative of at least some of the sensed coded data.