BR0302087A - Desprojeção digital de documentos - Google Patents

Desprojeção digital de documentos

Info

Publication number
BR0302087A
BR0302087A BR0302087-8A BR0302087A BR0302087A BR 0302087 A BR0302087 A BR 0302087A BR 0302087 A BR0302087 A BR 0302087A BR 0302087 A BR0302087 A BR 0302087A
Authority
BR
Brazil
Prior art keywords
output signals
deprovision
image signal
digital document
signal
Prior art date
Application number
BR0302087-8A
Other languages
English (en)
Inventor
Donald J Curry
Doron Kletter
Asghar Nafarieh
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of BR0302087A publication Critical patent/BR0302087A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40075—Descreening, i.e. converting a halftone signal into a corresponding continuous-tone signal; Rescreening, i.e. combined descreening and halftoning

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color, Gradation (AREA)

Abstract

"DESPROJEçãO DIGITAL DE DOCUMENTOS". Um método e um sistema para a desprojeção de um sinal de imagem. O sistema compreende um banco de filtro, um módulo de controle e um módulo de mistura. O banco de filtro filtra o sinal de imagem e produz um conjunto de sinais de saída de filtro. O módulo de controle gera pelo menos um sinal de controle, com base no sinal de imagem e em alguns dos sinais de saída de filtro. O módulo de mistura dinamicamente mistura os sinais de saída de filtro, de acordo com o sinal de controle, para a produção de um sinal de saída desprojetado.
BR0302087-8A 2002-07-01 2003-06-27 Desprojeção digital de documentos BR0302087A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/187,499 US7218418B2 (en) 2002-07-01 2002-07-01 Digital de-screening of documents

Publications (1)

Publication Number Publication Date
BR0302087A true BR0302087A (pt) 2004-09-08

Family

ID=29720415

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0302087-8A BR0302087A (pt) 2002-07-01 2003-06-27 Desprojeção digital de documentos

Country Status (6)

Country Link
US (1) US7218418B2 (pt)
EP (1) EP1379074B1 (pt)
JP (1) JP2004040790A (pt)
BR (1) BR0302087A (pt)
CA (1) CA2433510C (pt)
DE (1) DE60321428D1 (pt)

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Also Published As

Publication number Publication date
US7218418B2 (en) 2007-05-15
EP1379074B1 (en) 2008-06-04
CA2433510A1 (en) 2004-01-01
JP2004040790A (ja) 2004-02-05
CA2433510C (en) 2009-11-24
DE60321428D1 (de) 2008-07-17
EP1379074A3 (en) 2005-11-09
US20040001234A1 (en) 2004-01-01
EP1379074A2 (en) 2004-01-07

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 12A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2312 DE 28-04-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.