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US 7,411,613 B2Granted
Video signal processing apparatus
AssigneeCanon Kabushiki Kaisha
InventorYoshihiro Honma
Life of this patent
Estimating the term…
Abstract
By setting an area for displaying OSD data, a high-intensity part of this area is highlighted and an area which is not to be highlighted is set. Also, by performing translucent display of the OSD data and natural-image data, an area which is not to be highlighted can be set.
Claims8
A video signal processing apparatus comprising:
- A) first storage means for storing input first image data;
- B) second storage means for storing second image data;
- C) first comparing means for comparing luminance-signal component data in the first image data with a predetermined level;
- D) modifying means for modifying the second image data based on the output from the first comparing means;
- and
- E) synthesizing means for synthesizing the first image data and the second image data modified by the modifying means and outputting the synthesized data,
- wherein the modifying means generates different patterns for the high-intensity area, the low-intensity area, and a normal-intensity area of the first image data, and superimposes the patterns on the first image data, and
- wherein the modifying means blinks the second image data, in which the blink cycle is variable.
5 more elements
A video signal processing apparatus comprising:
- A) resizing means for resizing input image data;
- B) first storage means for storing the image data output from the resizing means and OSD data;
- C) second storage means which temporarily stores the image data and OSD data read from the first storage means, which is capable of asynchronously executing writing and reading, and which separately reads luminance-signal component data and chroma-signal component data of the image data and the OSD data;
- D) first comparing means for comparing the luminance-signal component data read from the second storage means with a predetermined level;
- E) second comparing means for comparing the OSD data read from the second storage means with a predetermined value;
- F) selector means for switching between the OSD data read from the second storage means and the predetermined value based on the AND of an output result from the first comparing means and an output result from the second comparing means;
- G) converting means for converting the output from the selector means to luminance-signal component data and chroma-signal component data of the OSD data;
- H) superimposing means for superimposing the luminance-signal component data and the chroma-signal component data of the image data from the second storage means on the luminance-signal component data and the chroma-signal component data of the OSD data from the converting means;
- and
- I) a counter which switches output of 0 and 1 at a time interval that can be arbitrarily changed, wherein the selector means is switched based on the AND of the output from the counter and a switching condition of the selector means.
7 more elements
Dependencies are inferred from the claim text.