File:Larky Test Pattern (color bars).gif

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Original file ‎(1,618 × 1,272 pixels, file size: 50 KB, MIME type: image/gif)

Summary

Description
English: Electronic signal to generate color bar pattern for video system testing and adjustment.
Date
Source U.S. Patent
Author N.D. Larky et al, excerpted by algocu

Licensing

Summary

Description
English: Front page of Larky Color Test Pattern patent.
Date
Source [1], p. 1
Author N. D. Larky et al
Permission
(Reusing this file)
Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

Captions

Early rendition of color bar test pattern

inception

27 April 1951

MIME type

image/gif

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current14:53, 16 August 2021Thumbnail for version as of 14:53, 16 August 20211,618 × 1,272 (50 KB)AlgocuUploaded a work by N.D. Larky et al, excerpted by algocu from U.S. Patent with UploadWizard
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