IP Library Granted Patent US 8,467,002
Granted Patent B2
US 8,467,002 · App. 12/412,893 · Granted Jun 18, 2013

Display device, broadcast receiving apparatus, display method, and broadcast receiving method

Inventor: Atsushi Tanaka (Fuchu, JP)
Assignee: Canon Kabushiki Kaisha
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Quick Facts
Patent No.
US 8,467,002
App. No.
12/412,893
Granted
Jun 18, 2013
Kind
B2
Abstract

A storage unit stores and holds, for each location, a set of location information indicating a location which can be used by a broadcast program and color temperature information in the location. An arithmetic control unit acquires one piece of location information stored and held in the storage unit. A video signal processing unit performs a color correction process for a video signal contained in a broadcast signal on the basis of the color temperature information stored and held in the storage unit and set with the location information acquired by the arithmetic control unit. A display unit displays a video based on the video signal after the correction.

Claims (31)

1. A display device comprising:

an input unit configured to input a broadcast program as content;

a holding unit configured to hold sets of pieces of location information indicating possible locations where broadcast program capturing can be performed and pieces of color temperature information corresponding to the locations;

an acquisition unit configured to acquire one piece of location information held in said holding unit;

a correction unit configured to perform a color correction process for the content on the basis of color temperature information held in said holding unit in correspondence with location information acquired by said acquisition unit; and

a first display unit configured to display a video based on the content which has undergone color correction by said correction unit.

2. The device according to claim 1 , wherein said acquisition unit comprises

a second display unit configured to display location information and color temperature information held in said holding unit in the form of a list,

a selection unit configured to accept a selection instruction to select one piece of location information displayed by said display unit, and

an acquisition unit configured to acquire the location information selected by the selection instruction from said holding unit.

3. The device according to claim 1 , wherein

said holding unit further holds, for each environment in a location where the broadcast program capturing can be performed, a correction value for correcting color temperature information in the location,

said acquisition unit further acquires a correction value corresponding to one of the environments, and

said correction unit performs a color correction process based on color temperature information corrected by adding the correction value acquired by said acquisition unit to color temperature information held in said holding unit in correspondence with location information acquired by said acquisition unit.

4. The device according to claim 1 , wherein said acquisition unit comprises

an acquiring unit configured to acquire EPG information, and

an extracting unit configured to extract information, of pieces of information associated with a plurality of contents included in the EPG information, which corresponds to a currently played-back content, search pieces of location information held in said holding unit by using a character string included in the extracted information as a keyword, and acquire location information for which there is a hit by the search from said holding unit.

5. A display method comprising steps of:

inputting a broadcast program as content;

acquiring one piece of location information from a holding unit holding sets of pieces of location information indicating possible locations where broadcast program capturing can be performed and pieces of color temperature information corresponding to the locations;

performing a color correction process for the content on the basis of color temperature information held in the holding unit and set with location information acquired in the acquiring step; and

displaying a video based on the content which has undergone color correction in the correcting step.

6. A broadcast receiving apparatus which receives a broadcast signal of a broadcast program transmitted from a selected broadcast station and outputs the broadcast program to a display device on the basis of the received broadcast signal, the apparatus comprising:

a holding unit configured to hold sets of pieces of location information indicating possible locations where broadcast program capturing can be performed and pieces of color temperature information corresponding to the locations;

an acquisition unit configured to acquire one piece of location information held in said holding unit;

a correction unit configured to perform a color correction process for a video signal included in a broadcast signal of the broadcast program on the basis of color temperature information held in said holding unit in correspondence with location information acquired by said acquisition unit; and

a unit configured to output a video based on the video signal which has undergone color correction by said correction unit to the display device.

7. A broadcast receiving method performed by a broadcast receiving apparatus which receives a broadcast signal of a broadcast program transmitted from a selected broadcast station and outputs the broadcast program to a display device on the basis of the received broadcast signal, the method comprising steps of:

acquiring one piece of location information from a holding unit holding sets of pieces of location information indicating possible locations where broadcast program capturing can be performed and pieces of color temperature information corresponding to the locations;

performing a color correction process for a video signal included in a broadcast signal of the broadcast program on the basis of color temperature information held in the holding unit in correspondence with acquired location information; and

outputting a video based on a video signal which has undergone color correction in the step of performing the color correction process to the display device.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 18, 2009
From: TANAKA, ATSUSHI
To: CANON KABUSHIKI KAISHA
Reel/Frame 022695/0229 →
Priority Claims (1)
JP 2008-101816 · Apr 9, 2008 · national
Continuity (1)
Related Publication 20090256916A1 · Oct 15, 2009