| US 7,518,656 B2 | ||
| Signal processing apparatus, signal processing method, signal processing program, program reproducing apparatus, image display apparatus and image display method | ||
| Tomoyuki Ohno, Zama (Japan); Shuntaro Aratani, Machida (Japan); and Masayoshi Tachihara, Chofu (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Sep. 08, 2005, as Appl. No. 11/220,550. | ||
| Claims priority of application No. 2004-260887 (JP), filed on Sep. 08, 2004; and application No. 2004-304359 (JP), filed on Oct. 19, 2004. | ||
| Prior Publication US 2006/0050183 A1, Mar. 09, 2006 | ||
| Int. Cl. H04N 7/00 (2006.01); H04N 11/00 (2006.01) | ||
| U.S. Cl. 348—462 [348/473; 348/553; 704/275; 704/270] | 4 Claims |
| 1. A television apparatus comprising:
a receiving unit that receives a digital broadcast signal comprising video data, audio data, and data broadcast data;
an audio signal detection unit that detects specific audio data from the audio data received by the receiving unit; and
a control unit that controls an image processor,
wherein the specific audio data relates a specific audio keyword, which is predetermined by a broadcaster and transmitted
as data broadcast data, to a characteristic keyword in a television program,
wherein the audio signal detection unit generates a control signal for controlling the control unit in a case of detecting
the specific audio data, and
wherein the control unit controls the image processor according to the control signal so as to synthesize an image including
at least one of specific image data and text data, which are related to the specific audio keyword, and an image based on
the video data, and the control unit controls the image processor according to the control signal so as to display the synthesized
image on a screen of a display device.
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