CONTROLLER HAVING TAG ENCODER FOR PRINTHEAD

• US 20110090519A1
• Filed: 12/28/2010
• Published: 04/21/2011
• Est. Priority Date: 05/24/2000
• Status: Active Grant

• Current Assignee: Memjet Technology Ltd. (Memjet Limited)
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Silverbrook, Kia, King, Tobin Allen
• Granted Patent: US 7,959,066 B2
• Time in Patent Office: Days
• US Class Current: 358/1.8
• CPC Class Codes: B41J 13/106 for the sheet output section
• CPC Class Codes: B41J 3/60 for printing on both faces of the printing material
• CPC Class Codes: B65H 2301/3113 vertical
• CPC Class Codes: B65H 2402/43 Wall apparatus, i.e. mounted on vertical support
• CPC Class Codes: B65H 2405/20 Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked on edge
• CPC Class Codes: B65H 2801/12 Single-function printing machines, typically table-top machines
• CPC Class Codes: G03G 15/6529 Transporting G03G15/6555 takes precedence
• CPC Class Codes: G03G 2215/00016 Special arrangement of entire apparatus
• CPC Class Codes: G03G 2215/00371 General use over the entire feeding path
• CPC Class Codes: G03G 2215/00383 Cassette
• CPC Class Codes: G03G 2215/00822 Binder, e.g. glueing device
• CPC Class Codes: G06K 15/02 using printers
• CPC Class Codes: G06K 15/181 Receiving print data characterized by its formatting, e.g. particular page description languages
• CPC Class Codes: G06K 19/06037 multi-dimensional coding
• CPC Class Codes: G06K 2215/0082 Architecture adapted for a particular function
• 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 1/32144 embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
• CPC Class Codes: H04N 2201/3249 data relating to a linked page or object, e.g. hyperlink
• CPC Class Codes: H04N 2201/327 which are undetectable to the naked eye, e.g. embedded codes
• CPC Class Codes: H04N 2201/3271 Printing or stamping

Abstract

A controller for a printhead is provided having an encoder for encoding tags to be printed on a page. The encoder has an input at which to receive a tag structure template having at least one predetermined mark position, an input at which to receive fixed data bits, an input at which to receive variable data bits, and a dot generator which uses the input tag structure template, and fixed and variable data bits for outputting, for at least one mark position of a respective tag, a single bit indicating if a dot is to be provided at the at least one mark position, for the respective tag.

Claims

1. A controller for a printhead, the controller comprising an encoder for encoding tags to be printed on a page, the encoder having:

an input at which to receive a tag structure template having at least one predetermined mark position;

an input at which to receive fixed data bits;

an input at which to receive variable data bits; and

a dot generator which uses the input tag structure template, and fixed and variable data bits for outputting, for at least one mark position of a respective tag, a single bit indicating if a dot is to be provided at the at least one mark position, for the respective tag.

2. A controller according to claim 1, comprising a redundancy encoder for optionally encoding the fixed and variable data bits.

3. A controller according to claim 2 wherein the redundancy encoder uses Reed-Solomon encoding.

4. A controller according to claim 1 wherein tags are placed regularly on a page.

5. A controller according to claim 4 wherein tags are placed in a triangular grid.