GB795331A - Improvements in or relating to facsimile reproduction systems - Google Patents

Improvements in or relating to facsimile reproduction systems

Info

Publication number: GB795331A
Authority: GB; United Kingdom
Prior art keywords: signals; amplitude; circuit; produce; black
Prior art date: 1955-06-14
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

Application number

GB16751/56A

Other languages

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.)

TI Gotham Inc

Original Assignee

Time Inc

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.)

1955-06-14

Filing date

1956-05-30

Publication date

1958-05-21

1956-05-30 Application filed by Time Inc filed Critical Time Inc

1958-05-21 Publication of GB795331A publication Critical patent/GB795331A/en

Status Expired legal-status Critical Current

Links

239000004020 conductor Substances 0.000 abstract 2
238000007906 compression Methods 0.000 abstract 1
230000000694 effects Effects 0.000 abstract 1
230000000007 visual effect Effects 0.000 abstract 1

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
- H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
- 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
- H04N1/46—Colour picture communication systems
- H04N1/56—Processing of colour picture signals
- H04N1/60—Colour correction or control
- 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
- H04N1/46—Colour picture communication systems
- H04N1/56—Processing of colour picture signals
- H04N1/60—Colour correction or control
- H04N1/6016—Conversion to subtractive colour signals

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Fax Reproducing Arrangements (AREA)

GB16751/56A 1955-06-14 1956-05-30 Improvements in or relating to facsimile reproduction systems Expired GB795331A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US795331XA	1955-06-14	1955-06-14

Publications (1)

Publication Number	Publication Date
GB795331A true GB795331A (en)	1958-05-21

Family

ID=22151146

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB16751/56A Expired GB795331A (en)	1955-06-14	1956-05-30	Improvements in or relating to facsimile reproduction systems

Country Status (4)

Country	Link
BE (1)	BE557613A (de)
CH (1)	CH355809A (de)
FR (1)	FR1175143A (de)
GB (1)	GB795331A (de)

0
- BE BE557613D patent/BE557613A/xx unknown
1956
- 1956-05-30 GB GB16751/56A patent/GB795331A/en not_active Expired
1957
- 1957-05-15 FR FR1175143D patent/FR1175143A/fr not_active Expired
- 1957-06-04 CH CH355809D patent/CH355809A/de unknown

Also Published As

Publication number	Publication date
BE557613A (de)
FR1175143A (fr)	1959-03-20
CH355809A (de)	1961-07-31

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