Captioned Still Picture Contents Producing Apparatus, Captioned Still Picture Contents Producing Program and Captioned Still Picture Contents Producing System

• US 20090009661A1
• Filed: 07/22/2005
• Published: 01/08/2009
• Est. Priority Date: 11/02/2004
• Status: Abandoned Application

• Current Assignee: LSI Japan Co., Ltd., Tv Asahi Data Vision Corporation (TV Asahi Holdings Corp.)
• Original Assignee: LSI Japan Co., Ltd., Tv Asahi Data Vision Corporation (TV Asahi Holdings Corp.)
• Inventors: Murakami, Shizuo, Okawara, Kouichi, Tanaka, Takashi, Watanabe, Hideo
• Application Number:
  US11/664,932
• Publication Number:
  US 20090009661A1
• Time in Patent Office: Days
• US Class Current: 348/468
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/4884 for displaying subtitles
• CPC Class Codes: H04N 7/0885 for the transmission of subtitles

Abstract

There is provided a captioned still picture contents producing technique capable of opening caption broadcasting contents being a closed caption and synthesizing it with a still picture obtained from a TV video to automatically produce new captioned still picture contents. In a captioned still picture contents producing system, a captioned video signal generating apparatus generates a captioned video signal, and a still picture contents producing apparatus produces captioned still picture contents from the captioned video signal. The captioned video signal generating apparatus receives the original video signal and caption signal, and generates a control signal based on whether or not the caption is a real time caption. Then, the captioned video signal generating apparatus synthesizes the caption signal and the video signal and inserts the control signal to a predetermined position to generate a captioned video signal. On the contrary, the still picture contents producing apparatus extracts the caption signal and the control signal from the captioned video signal, and captures the image in the video signal based on the control signal to generate a still picture. At the same time, the still picture contents producing apparatus generates the caption video from the caption signal. Then, the still picture contents producing apparatus synthesizes the still picture and the caption image to produce the captioned still picture contents.

Claims

1. A captioned still picture contents producing apparatus comprising:

a receiving unit which receives a captioned video signal;

an extracting unit which extracts a control signal for producing a caption signal and contents from the captioned video signal;

a still picture capturing unit which captures an image in the video signal based on the control signal;

a caption image generating unit which generates a caption image based on the caption signal; and

a producing unit which synthesizes the caption image and the still picture to produce captioned still picture contents.

2. The captioned still picture contents producing apparatus according to claim 1, wherein the still picture capturing unit captures a still picture in the video signal corresponding to each caption signal.

3. The captioned still picture contents producing apparatus according to claim 1,

wherein the video signal is a video signal of recorded caption broadcasting,

wherein the extracting unit extracts the caption signal and the control signal from a frame having the caption signal in the video signal, and

wherein the still picture capturing unit captures an image of the frame.

4. The captioned still picture contents producing apparatus according to claim 1,

wherein the video signal is a video signal of real time caption broadcasting,

wherein the extracting unit extracts the caption signal and the control signal from a frame having the caption signal in the video signal, and

wherein the still picture capturing unit captures an image of another frame positioned behind the frame in terms of time.

5. The captioned still picture contents producing apparatus according to claim 1, wherein the video signal is an analog television signal, and wherein the extracting unit extracts the control signal from a vertical blanking interval of a frame having a caption signal in the analog television signal.

6. The captioned still picture contents producing apparatus according to claim 1, wherein the video signal is a digital television signal, and wherein the extracting unit extracts the control signal from private data in a PES having a caption signal in the digital television signal.

7. A computer program product in a computer-readable medium executed by a computer terminal, making the computer terminal function as:

a receiving unit which receives a captioned video signal;

an extracting unit which extracts a control signal for producing a caption signal and contents from the captioned video signal;

a still picture capturing unit which captures an image in the video signal based on the control signal;

a caption image generating unit which generates a caption image based on the caption signal; and

a producing unit which synthesizes the caption image and the still picture to produce captioned still picture contents.

8. A captioned still picture contents producing system comprising a captioned video signal generating apparatus and a still picture contents producing apparatus,

wherein the captioned video signal generating apparatus includes:

a receiving unit which receives a video signal and a caption signal;

a control signal generating unit which generates a control signal based on whether or not a caption is a real time caption; and

a signal generating unit which synthesizes the caption signal and the video signal and inserts the control signal to a predetermined position to generate a captioned video signal,

wherein the still picture contents producing apparatus includes;

a receiving unit which receives the captioned video signal;

an extracting unit which extracts the caption signal and the control signal from the captioned video signal;

a still picture capturing unit which captures an image in the video signal based on the control signal;

a caption image generating unit which generates a caption image based on the caption signal; and

a producing unit which synthesizes the caption image and the still picture to produce captioned still picture contents.

9. The captioned still picture contents producing system according to claim 8, wherein the control signal generating unit generates a control signal which designates a frame image from which the caption signal and the control signal are extracted as an image to be captured by the still picture capturing unit when the caption is not the real time caption, and which designates another frame image behind the frame image in terms of time from which the caption signal and the control signal are extracted, as the image to be captured by the still picture capturing unit when the caption is the real time caption.