Play-back device and method for controlling the same
A play-back device receiving data including program parts and specific parts, detecting duplicated part in which contents are repeated in the specific part included in the data and before and after the specific part. On playing back the data, when it comes to the specific part or the duplicated part it outputs an indication indicating that it is the specific part or the duplicated part on a display screen. When it receives a skip play-back or fast play-back instruction from a user, it controls to skip play back or fast play back the specific part or the duplicated part. It then becomes possible to provide a play-back device with enhanced usefulness for the user and a method for controlling the same.
1. A play-back device connectable to a display device, comprising:
a receiving part which receives data including program parts and specific parts;
a specific part detection part which detects a specific part from the received data;
a duplication detection part which detects a duplicated part subsequent to the specific part, the duplicated part repeating contents in a program part proceeding the specific part;
an output part which outputs screen display information which indicates what is being displayed on the display device is the specific part or the duplicated part in playing back the data when the specific part or the duplicated part is detected; and
a control part which controls to skip play back or fast play back the specific part or the duplicated part when the screen display information is displayed on the display device and a skip play-back or fast play-back instruction from a user is received.
2. A play-back device according to claim 1 , further comprising a memory part which stores information relating to a position of the specific part detected by the specific part detection part, information relating to a position of the duplicated part detected by the duplicated part, and the data received by the receiving part.
3. A play-back device according to claim 1 , further comprising a encoder which encodes the data to reduce a code amount of the specific part or the duplicated part, and a memory part which stores the data encoded by the encoder.
4. A play-back device according to claim 1 , wherein the specific parts are commercial messages.
5. A controlling method, comprising the steps of:
receiving data including program parts and specific parts;
detecting a duplicated part subsequent to a specific part, the duplicated part repeating contents in a program part proceeding the specific part;
outputting a first indication indicating what is being displayed on a display screen is the specific part or the duplicated part in playing back the data when the specific part or the duplicated part is detected;
judging whether or not a skip play-back or fast play-back instruction from a user is received;
performing a skip play back or a fast play back on the specific part or the duplicated part when the skip play-back or fast play-back instruction from a user is received; and
displaying a second indication showing that skipping play back or fast play back operation is being performed.
6. A method for controlling according to claim 5 , further comprising the step of controlling to store information relating to positions of the detected specific part and duplicated part in relation to the received data in a record medium.
7. A method for controlling according to claim 5 , further comprising the step of controlling to encode the data to reduce a code amount of the specific part or the duplicated part, and to store the encoded data in a record medium.
8. A method for controlling according to claim 5 , wherein the specific parts are commercial messages.
9. A play-back device according to claim 2 , wherein the specific parts are commercial messages.
10. A play-back device according to claim 3 , wherein the specific parts are commercial messages.
11. A method for controlling according to claim 6 , wherein the specific parts are commercial messages.
12. A method for controlling according to claim 7 , wherein the specific parts are commercial messages.
13. A play-back device comprising:
a first receiving part which receives data including program parts and specific parts of a TV broadcast;
a second receiving part which receives a skip play-back signal from a user;
a display part which displays the data received by the first receiving part;
a specific part detection part which detects a specific part from the data received by the first receiving part; and
a controlling part which controls the display part to display an indication indicating what is being displayed is the specific part in playing back the data when the specific part detected by the specific part detection part is played back, and controls the display part to perform skip a play-back on the specific part when the skip play-back signal is received by the second receiving part while displaying the indication.
14. The method according to claim 5 , further comprising the step of compressing a portion of the received data, and displaying time information necessary for playing-back the compressed data.
15. The method according to claim 14 , wherein the compressing step compresses the portion of the data entirely, the portion of the data except a commercial message, or the portion of the data except the commercial message and the duplicated part.