DE3679349D1 - System zur reproduktion von bildern mit gemischtem inhalt. - Google Patents

System zur reproduktion von bildern mit gemischtem inhalt.

Info

Publication number
DE3679349D1
DE3679349D1 DE8686103848T DE3679349T DE3679349D1 DE 3679349 D1 DE3679349 D1 DE 3679349D1 DE 8686103848 T DE8686103848 T DE 8686103848T DE 3679349 T DE3679349 T DE 3679349T DE 3679349 D1 DE3679349 D1 DE 3679349D1
Authority
DE
Germany
Prior art keywords
reproduction
images
mixed content
mixed
content
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE8686103848T
Other languages
English (en)
Inventor
Yi-Hsin Nmn Chen
Frederick Cole Mintzer
Keith Samuel Pennington
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3679349D1 publication Critical patent/DE3679349D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04N1/40062—Discrimination between different image types, e.g. two-tone, continuous tone
    • 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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
DE8686103848T 1985-04-12 1986-03-21 System zur reproduktion von bildern mit gemischtem inhalt. Expired - Fee Related DE3679349D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/722,955 US4668995A (en) 1985-04-12 1985-04-12 System for reproducing mixed images

Publications (1)

Publication Number Publication Date
DE3679349D1 true DE3679349D1 (de) 1991-06-27

Family

ID=24904156

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686103848T Expired - Fee Related DE3679349D1 (de) 1985-04-12 1986-03-21 System zur reproduktion von bildern mit gemischtem inhalt.

Country Status (5)

Country Link
US (1) US4668995A (de)
EP (1) EP0202425B1 (de)
JP (1) JPH0640348B2 (de)
CA (1) CA1241606A (de)
DE (1) DE3679349D1 (de)

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Also Published As

Publication number Publication date
EP0202425B1 (de) 1991-05-22
EP0202425A2 (de) 1986-11-26
EP0202425A3 (en) 1987-09-16
JPS61237173A (ja) 1986-10-22
JPH0640348B2 (ja) 1994-05-25
US4668995A (en) 1987-05-26
CA1241606A (en) 1988-09-06

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