Optical imaging pen having an orthogonal accelerometer

• US 7,463,794 B2
• Filed: 05/04/2008
• Issued: 12/09/2008
• Est. Priority Date: 05/25/1999
• Status: Expired due to Fees

• Current Assignee: Silverbrook Research Pty Limited
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Silverbrook, Kia, Lapstun, Paul, Lapstun, Jacqueline Anne
• Primary Examiner(s): Mariam; Daniel G
• Application Number:
  US12/114,805
• Publication Number:
  US 20080205762A1
• Time in Patent Office: 219 Days
• Field of Search: 382/100, 382/107, 382/181, 382/186, 382/187, 382/188, 382/313, 382/314, 178/18.01, 345/179, 345/180
• US Class Current: 382/313
• CPC Class Codes: B41J 13/103 for the sheet feeding section
• CPC Class Codes: B41J 13/106 for the sheet output section
• CPC Class Codes: B41J 2/17503 Ink cartridges
• CPC Class Codes: B41J 2/17513 Inner structure
• CPC Class Codes: B41J 2/17523 Ink connection
• CPC Class Codes: B41J 2/17526 Electrical contacts to the cartridge
• CPC Class Codes: B41J 2/17546 electronically
• CPC Class Codes: B41J 2/17553 Outer structure
• CPC Class Codes: B41J 2/17556 Means for regulating the pressure in the cartridge
• CPC Class Codes: B41J 2/17563 Ink filters
• CPC Class Codes: B41J 2/2114 Ejecting specialized liquids, e.g. transparent or processing liquids B41J2/211 takes precedence
• CPC Class Codes: B41J 29/02 Framework
• CPC Class Codes: B41J 29/13 Cases or covers
• CPC Class Codes: B41J 3/60 for printing on both faces of the printing material
• CPC Class Codes: B42C 19/02 starting with single sheets
• CPC Class Codes: B42C 9/0006 by applying adhesive to a stack of sheets
• CPC Class Codes: B42C 9/0081 applying adhesive to individual sheets for binding them together by fusing, welding B42C9/0093
• CPC Class Codes: B42P 2261/04 Producing books by printing sheets in following order, e.g. for ordering via the Internet
• CPC Class Codes: B43K 23/008 Holders comprising finger grips B43K23/004, B43K23/012 take precedence
• CPC Class Codes: B43K 24/06 operated by turning means
• CPC Class Codes: B43K 25/02 : Clips
• CPC Class Codes: B43K 29/00 : Combinations of writing implements with other articles
• CPC Class Codes: B43K 29/003 : with optical equipment, e.g. magnifier, viewer
• CPC Class Codes: B43K 29/004 : with more than one object
• CPC Class Codes: B43K 29/08 : with measuring, computing or indicating devices
• CPC Class Codes: B43K 29/093 : with calculators
• CPC Class Codes: B43K 29/10 : with illuminating devices
• CPC Class Codes: B43K 7/005 : Pen barrels
• CPC Class Codes: B43K 7/02 : Ink reservoirs; Ink cartridges B43K7/01 takes precedence
• CPC Class Codes: B65H 29/34 : from supports slid from under the articles
• CPC Class Codes: B65H 37/04 : for securing together articles or webs, e.g. by adhesive, stitching or stapling adhering replacement to expiring web during change of web roll B65H19/18
• CPC Class Codes: C09D 11/50 : Sympathetic, colour changing or similar inks
• CPC Class Codes: G06F 16/4393 : Multimedia presentations, e.g. slide shows, multimedia albums
• CPC Class Codes: G06F 16/93 : Document management systems
• CPC Class Codes: G06F 16/955 : using information identifiers, e.g. uniform resource locators [URL]
• CPC Class Codes: G06F 2203/0337 : Status LEDs integrated in the mouse to provide visual feedback to the user about the status of the input device, the PC, or the user
• 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: G06F 3/03545 : Pens or stylus
• CPC Class Codes: G06F 3/04883 : for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 3/1204 : resulting in reduced user or operator actions, e.g. presetting, automatic actions, using hardware token storing data
• CPC Class Codes: G06F 3/1265 : Printing by reference, e.g. retrieving document/image data for a job from a source mentioned in the job
• CPC Class Codes: G06F 3/1285 : Remote printer device, e.g. being remote from client or server
• CPC Class Codes: G06F 40/174 : Form filling; Merging
• CPC Class Codes: G06K 17/00 : Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
• CPC Class Codes: G06Q 20/3821 : Electronic credentials
• CPC Class Codes: G06Q 20/3829 : involving key management
• 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 30/0241 : Advertisements
• CPC Class Codes: G06V 10/19 : by sensing codes defining pattern positions
• CPC Class Codes: G06V 30/1423 : the instrument generating sequences of position coordinates corresponding to handwriting preprocessing or recognising digital ink G06V30/32
• CPC Class Codes: G07D 7/005 : Testing security markings invisible to the naked eye, e.g. verifying thickened lines or unobtrusive markings or alterations
• CPC Class Codes: G07D 7/128 : Viewing devices
• CPC Class Codes: H04N 1/00127 : Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
• CPC Class Codes: H04N 1/00204 : with a digital computer or a digital computer system, e.g. an internet server programmed control between transmitter and receiver or between image input and image output device H04N1/32561
• CPC Class Codes: H04N 1/00206 : Transmitting or receiving computer data via an image communication device, e.g. a facsimile transceiver H04N1/00236 takes precedence
• CPC Class Codes: H04N 1/00244 : with a server, e.g. an internet server fax-servers or the like for store and forward H04N1/324
• CPC Class Codes: H04N 1/00278 : with a printing apparatus, e.g. a laser beam printer
• CPC Class Codes: H04N 1/00326 : with a data reading, recognizing or recording apparatus, e.g. with a bar-code apparatus arrangements for the associated working of recording or reproducing apparatus with related apparatus G11B31/00
• CPC Class Codes: H04N 1/00355 : Mark-sheet input sensing record carriers G06K7/00; character recognition G06V30/10; document-oriented image-based pattern recognition G06V30/40
• CPC Class Codes: H04N 1/00358 : Type of the scanned marks
• CPC Class Codes: H04N 1/00376 : Means for identifying a mark sheet or area
• CPC Class Codes: H04N 1/00567 : Handling of original or reproduction media, e.g. cutting, separating, stacking
• CPC Class Codes: H04N 1/00968 : by scanning marks on a sheet mark-sheet input means H04N1/00355; sensing record carriers G06K7/00
• CPC Class Codes: H04N 1/107 : with manual scanning
• CPC Class Codes: H04N 1/32101 : Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
• CPC Class Codes: H04N 1/32122 : in a separate device, e.g. in a memory or on a display separate from image data
• CPC Class Codes: H04N 1/32128 : attached to the image data, e.g. file header, transmitted message header, information on the same page or in the same computer file as the image for information embedded in the image H04N1/32144
• CPC Class Codes: H04N 1/32133 : on the same paper sheet, e.g. a facsimile page header
• CPC Class Codes: H04N 1/32771 : in response to a request, e.g. for a particular document
• CPC Class Codes: H04N 1/32776 : using an interactive, user-operated device, e.g. a computer terminal, mobile telephone H04N1/32782, H04N1/32784 take precedence
• CPC Class Codes: H04N 1/32778 : using a mark-sheet or machine-readable code request
• CPC Class Codes: H04N 2201/001 : Sharing resources, e.g. processing power or memory, with a connected apparatus or enhancing the capability of the still picture apparatus
• CPC Class Codes: H04N 2201/0055 : By radio
• CPC Class Codes: H04N 2201/0082 : Image hardcopy reproducer H04N2201/0091 - H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/3205 : of identification information, e.g. name or ID code H04N2201/3209 takes precedence
• CPC Class Codes: H04N 2201/3226 : of identification information or the like, e.g. ID code, index, title, part of an image, reduced-size image
• CPC Class Codes: H04N 2201/3243 : of type information, e.g. handwritten or text document
• CPC Class Codes: H04N 2201/3247 : Data linking a set of images to one another, e.g. sequence, burst or continuous capture mode
• CPC Class Codes: H04N 2201/3249 : data relating to a linked page or object, e.g. hyperlink
• CPC Class Codes: H04N 2201/3264 : of sound signals
• CPC Class Codes: H04N 2201/3266 : of text or character information, e.g. text accompanying an image H04N2201/3226 takes precedence
• CPC Class Codes: H04N 2201/3267 : of motion picture signals, e.g. video clip
• CPC Class Codes: H04N 2201/3269 : of machine readable codes or marks, e.g. bar codes or glyphs
• CPC Class Codes: H04N 2201/327 : which are undetectable to the naked eye, e.g. embedded codes
• CPC Class Codes: H04N 2201/3278 : Transmission
• CPC Class Codes: H04W 4/18 : Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
• CPC Class Codes: H04W 88/04 : adapted for relaying to or from another terminal or user
• CPC Class Codes: Y02D 10/00 : Energy efficient computing, e.g. low power processors, power management or thermal management
• CPC Class Codes: Y10S 707/99942 : Manipulating data structure, e.g. compression, compaction, compilation
• CPC Class Codes: Y10T 156/1798 : with liquid adhesive or adhesive activator applying means

Abstract

The invention provides for an optical imaging pen configured to capture and decode infrared (IR) position tags from a page. The pen includes a force sensor photodiode configured to sense when a nib of the pen is in contact with the page, and an LED configured to project IR radiation onto a portion of the page when the nib is in contact therewith. The pen also includes an image sensor configured to image the portion of the page when the nib is in contact therewith by receiving reflected IR radiation, and at least one orthogonal accelerometer configured to sense motion of the pen by sensing acceleration in x and y directions and integrating with respect to time to produce an instantaneous velocity. The pen further includes a controller arranged in signal communication with the accelerometer, photodiode and image sensor, said controller configured to control the photodiode and image sensor to capture, decode and encrypt the tags into digital ink data, and to include the instantaneous velocity of the pen into the digital ink data.

Claims

1. An optical imaging pen configured to capture and decode infrared (IR) position tags from a page, said pen comprising:

a force sensor photodiode configured to sense when a nib of the pen is in contact with the page;

an LED configured to project IR radiation onto a portion of the page when the nib is in contact therewith;

an image sensor configured to image the portion of the page when the nib is in contact therewith by receiving reflected IR radiation;

at least one orthogonal accelerometer configured to sense motion of the pen by sensing acceleration in x and y directions and integrating with respect to time to produce an instantaneous velocity; and

a controller arranged in signal communication with the accelerometer, photodiode and image sensor, said controller configured to control the photodiode and image sensor to capture, decode and encrypt the tags into digital ink data, and to include the instantaneous velocity of the pen into the digital ink data.

2. The pen of claim 1, having a radio frequency (RF) integrated circuit and antenna configured to securely transmit the digital ink data to a computing system by utilizing a pre-registered session key.

3. The pen of claim 2, wherein the controller includes a buffer and is configured to buffer digital ink data when the pen is out-of-range of the computing system and to transmit the buffered digital ink data when the pen is once again within range of the computing system.

4. The pen of claim 2, wherein the RF integrated circuit is configured to operate in a 2.4 GHz radio frequency band with the controller utilizing frequency hopping and collision detection techniques to provide interference-free communication.

5. The pen of claim 1, having an ink pen cartridge and a stylus mounted side by side within a housing of the pen, the ink cartridge and stylus configured to be individually brought forward through an open end of the housing by rotation of a pen top rotatably mounted on an end of the housing.

6. The pen of claim 5, having a rechargeable battery mounted in the housing with an induction coil mounted about the battery to enable induction recharging of the battery.

7. The pen of claim 1, including a status LED under control of the controller to indicate an operational status of the pen to a user.