JP4747923B2 - Digital broadcast recording device - Google Patents

Description

  The present invention relates to a digital broadcast recording apparatus.

Conventionally, a silent part of video / audio data is detected, and skip playback is enabled by inserting delimiter information into the silent part, and still picture data of the silent part is extracted from the video data and displayed as a thumbnail A reproduction apparatus is known (for example, Patent Document 1).
There is also known a recording / reproducing apparatus that acquires video data suitable for audio data and displays it on a display unit when reproducing a CD that records only audio data (for example, Patent Document 2).
There is also known a data structure of a recording medium that inserts delimiter information into audio data and stores still image data and audio data in association with each other (for example, Patent Document 3).
JP 2005-135529 A JP 2003-281862 A JP 2002-152777 A

  By the way, there are some channels dedicated to music in digital broadcasting or the like that display a still image related to a song when the audio data for one song is broadcast. Then, when the broadcast of the music dedicated channel is recorded, the audio data and the video data of the still image corresponding to the time of the song are recorded on the recording medium, although the still image is displayed. This requires a recording capacity similar to that of moving images and is not efficient. Since Patent Documents 1 and 2 record video data for the same amount of time as audio data, the problem cannot be solved. Further, since Patent Document 3 is an invention regarding a data structure for simply adding still image data to audio data, the problem cannot be solved.

  An object of the present invention is to provide a digital broadcast recording apparatus for more efficiently recording a broadcast of a music dedicated channel.

The invention according to claim 1 is a digital broadcast recording apparatus for recording video / audio data transmitted by digital broadcast.
A designation means for designating a music program recording mode;
Detecting means for detecting a silent portion of video and audio data transmitted by digital broadcasting when a music program recording mode is designated by the designation means;
Acquisition means for acquiring still image data for each preset time interval from video data between the silent part of the audio / video data detected by the detecting means and the next silent part of the silent part;
Storage control means for associating the still image data acquired by the acquisition means with the audio data from the silent part of the audio / video data to the next silent part of the silent part in the storage means of its own device When,
Reproduction control means for switching the image based on the still image data stored in the storage means at predetermined time intervals and reproducing the sound data stored in the storage means on a display device connected to the own apparatus ; ,
It is characterized by having.

According to a second aspect of the present invention, there is provided a digital broadcast recording apparatus for recording video / audio data of a music program composed of audio data transmitted by digital broadcasting and video data in which still images are continuous.
A designation means for designating a music program recording mode;
Detecting means for detecting a silent portion of video and audio data transmitted by digital broadcasting when a music program recording mode is designated by the designation means;
Determining means for determining whether or not there is a change in the video data in the silent portion of the video and audio data;
An acquisition means for acquiring still image data from the video data of the silent portion of the video and audio data when the determination means determines that there is a change in the video data in the silent portion of the video and audio data;
Storage control means for associating the still image data acquired by the acquisition means with the audio data from the silent part of the audio / video data to the next silent part of the silent part in the storage means of its own device When,
Reproduction control means for displaying an image based on the still image data stored in the storage means on a display device connected to the own apparatus when reproducing the audio data stored in the storage means;
It is characterized by having.

According to the first aspect of the present invention, when the music program recording mode is specified by the specifying means, the silent portion of the video / audio data transmitted by digital broadcasting is detected by the detecting means and detected by the acquiring means. Still image data is acquired at predetermined time intervals from the video data between the silent part of the audio / video data detected by the means and the next silent part of the silent part, and is acquired by the storage control means by the acquisition means. The acquired still image data and the audio data from the silent part of the video / audio data to the next silent part of the silent part are associated with each other and stored in the storage unit of the own apparatus, and stored by the reproduction control unit. when the audio data stored in the unit is reproduced, the display instrumentation to image based on the stored still image data is connected to its own device is switched at predetermined time intervals in a storage means Therefore, the silent part at the beginning and end of the song is detected, and still image data is acquired for each preset time interval in one song between the silent parts. As a result, the time per song is obtained. The predetermined number of still image data corresponding to the number of images is acquired, and only the audio data for one song and the predetermined number of still image data corresponding to the time are stored in the storage unit. Can be used efficiently, and broadcasts of dedicated music channels can be recorded more efficiently.
In addition, even for a program that broadcasts audio data and video data that is a moving image, still image data is acquired from the video data at preset time intervals, and the audio data stored in the storage means is reproduced. In this case, the image based on the still image data is switched every predetermined time and displayed on the display device, so that the video data that is a moving image can be roughly viewed.

According to the second aspect of the present invention, when the music program recording mode is designated by the designation means, the silent portion of the video / audio data transmitted by digital broadcasting is detected by the detection means, and the judgment means When it is determined whether or not there is a change in the video data in the silent part of the audio data, and the acquisition unit determines that there is a change in the video data in the silent part of the video and audio data, the silent part of the video and audio data Still image data is acquired from the video data, and the storage control means obtains the still image data acquired by the acquisition means and the audio data from the silent part of the video / audio data to the next silent part of the silent part. stored in the storage means of the association is the own apparatus, the reproduction control means, when the audio data stored in the storage means is reproduced, stored hand Since the image based on the stored still image data is displayed on the display device connected to the own device, the are detected silent portion of the beginning and end of a song is acquired still image data of the silent portion, as a result One piece of still image data is acquired for each piece of music, and only one piece of audio data and one piece of still image data are stored in the storage unit, so that the storage area of the storage unit can be efficiently stored. It can be used, and broadcasts of dedicated music channels can be recorded more efficiently.
In addition, the beginning and end of a song are determined not only by the silent part, but also by whether there is a change in video data in which still images are continuous. , More accurately determine the beginning and end of the song.

  Hereinafter, the best mode for carrying out a digital broadcast recording apparatus according to the present invention will be described in detail with reference to the drawings.

(First embodiment)
First, the configuration of the digital broadcast recording apparatus 100 according to the first embodiment of the present invention will be described with reference to FIGS. The digital broadcast recording apparatus 100 according to this embodiment includes, for example, an antenna 1, a tuner unit 2, a demodulation unit 3, a decoder 4, an encoder 5, an HDD 6, an input unit 7, and a control unit 8, as shown in FIGS. Are connected to the display device 200, the sound output device 300, and the like.

  The antenna 1 is, for example, a parabolic antenna, a UHF antenna, or the like, receives broadcast waves including television broadcast signals such as terrestrial digital broadcasts and BS / CS broadcasts, and transmits terrestrial digital signals, BS / CS broadcast signals, and the like. The RF signal is output to the tuner unit 2. In addition, when receiving a broadcast wave via a CATV line, a connection cable (not shown) or the like may be provided.

  The tuner unit 2 includes a mixer (not shown), a channel selection circuit (not shown), an A / D conversion circuit (not shown), and the like. The RF input from the antenna 1 by the mixer, the channel selection circuit, and the like. The signal is converted into an IF (Intermediate Frequency) signal of a channel desired by the user, and the generated IF signal is converted into digital data by an A / D conversion circuit.

  For example, the demodulator 3 performs a demodulation process on the digital data input from the tuner 2 and outputs the digital data to the decoder 4.

  For example, the decoder 4 performs a decoding process or the like on the digital data input from the demodulator 3 to generate video data and audio data, and outputs them to the display device 200, the sound output device 300, and the like.

  The encoder 5 performs encoding processing on video data and audio data output from the decoder 4 via the CPU 9 and outputs the encoded data to the HDD 6.

  For example, the HDD 6 includes a magnetic recording medium and stores video data and audio data input from the encoder 5.

The input unit 7 includes, for example, various keys for inputting various operation signals, and outputs various operation signals to the control unit 8 when operated by the user.
More specifically, the input unit 7 outputs an operation signal designating a music program recording mode to the control unit 8 and functions as a designation unit.

  For example, as shown in FIG. 2, the control unit 8 includes a CPU (Central Processing Unit) 9, a RAM (Random Access Memory) 10, a storage unit 11, and the like.

  The CPU 9 controls the entire digital broadcast recording apparatus 100 by, for example, reading a processing program or the like stored in the storage unit 11 and developing the processing program in the RAM 10 for execution.

  The RAM 10 expands a processing program executed by the CPU 9 in a program storage area in the RAM 10 and stores input data and a processing result generated when the processing program is executed in the data storage area.

  The storage unit 11 includes, for example, a recording medium (not shown) in which programs, data, and the like are stored in advance, and this recording medium is configured by, for example, a semiconductor memory. Further, the storage unit 11 stores various data, various processing programs, data processed by executing these programs, and the like for realizing the function of the CPU 9 controlling the entire digital broadcast recording apparatus 100. More specifically, the storage unit 11 stores, for example, a normal recording program 11A, a detection program 11B, an acquisition program 11C, a storage control program 11D, a reproduction control program 11E, as shown in FIG.

  The normal recording program 11A is a program that causes the CPU 9 to realize a function of storing the video data and the audio data output from the decoder 4 in association with each other in the HDD 6, for example.

  For example, the detection program 11B is a program that causes the CPU 9 to realize a function of detecting a silent portion of video / audio data transmitted by digital broadcasting. More specifically, the detection program 11B is a program that, for example, causes the CPU 9 to realize a function of detecting a silent portion by determining the level of an audio signal of video / audio data transmitted by digital broadcasting. The CPU 9 functions as a detection unit by executing the detection program 11B.

  The acquisition program 11C is a program that, for example, causes the CPU 9 to realize a function of acquiring still image data from video data of a silent portion of video / audio data detected by executing the detection program 11B. More specifically, the acquisition program 11C executes, for example, the CPU 9 by executing the detection program 11B to determine whether or not the silent part has been detected, and when it is determined that the silent part has been detected, This is a program for realizing a function of acquiring still image data from video data of the silent portion of audio data. The CPU 9 functions as an acquisition unit by executing the acquisition program 11C.

  For example, the storage control program 11D associates the CPU 9 with the still image data acquired by executing the acquisition program 11C and the audio data from the silent part of the video / audio data to the silent part next to the silent part. Is a program that realizes the function of being stored in the HDD 6 as one chapter. The CPU 9 functions as a storage control unit by executing the storage control program 11D.

  The reproduction control program 11E is a program that, for example, causes the CPU 9 to realize a function of causing the display device 200 to display an image based on still image data stored in the HDD 6 when reproducing audio data stored in the HDD 6. More specifically, for example, the reproduction control program 11E causes the CPU 9 to decode the audio data stored in the HDD 6 by the decoder 4 and output it to the sound output device 300 for reproduction, and associates it with the audio data. This is a program that realizes a function of causing the decoder 4 to decode the still image data stored in the HDD 6 and output it to the display device 200 for reproduction. The CPU 9 functions as a reproduction control unit by executing the reproduction control program 11E.

  The display device 200 is configured to include a display unit such as an LCD (Liquid Crystal Display) or a PDP (Plasma Display Panel), and displays video based on video data output from the decoder 4 on the display unit.

  The sound output device 300 includes, for example, a speaker, and outputs sound based on the sound data output from the decoder 4.

Next, the operation of the music program recording mode of the digital broadcast recording apparatus 100 according to the first embodiment configured as described above will be described with reference to the flowchart shown in FIG.
First, when an operation signal for designating a music program recording mode is input by the user operating the input unit 7 (step S1), the CPU 9 executes the detection program 11B and is transmitted by digital broadcasting. The silent portion of the video / audio data to be detected is detected (step S2).

Next, the CPU 9 determines whether or not a silent part has been detected by executing the acquisition program 11C (step S3).
In step S3, when the CPU 9 determines that the silent part is not detected (step S3; No), the process returns to step S2.
In step S3, when the CPU 9 determines that a silent part has been detected (step S3; Yes), the CPU 9 determines from the video data of the silent part of the video / audio data based on the execution of the acquisition program 11C the still image. Data is acquired (step S4).

  Next, the CPU 9 detects the silent part of the video / audio data transmitted by digital broadcasting by executing the detection program 11B (step S5).

Next, the CPU 9 determines whether or not a silent part has been detected by executing the acquisition program 11C (step S6).
If the CPU 9 determines in step S6 that no silent part has been detected (step S6; No), the process returns to step S5.
In step S6, when the CPU 9 determines that a silent part has been detected (step S6; Yes), the CPU 9 executes the storage control program 11D to obtain the still image data and the video / audio data acquired in step S4. The voice data from the silent part to the next silent part of the silent part is associated with each other and stored in the HDD 6 as one chapter (step S7).

Next, the CPU 9 determines whether or not an operation signal for ending recording has been input by operating the input unit 7 by the user (step S8).
In step S8, when the CPU 9 determines that the operation signal for ending the recording is not input (step S8; No), the process returns to step S4.
If the CPU 9 determines in step S8 that an operation signal for ending recording has been input (step S8; Yes), the process ends.

  Next, the reproduction operation of the audio data stored in the HDD 6 in the music program recording mode in the digital broadcast recording apparatus 100 according to the first embodiment of the present invention will be described with reference to the flowchart shown in FIG.

  First, when the input unit 7 is operated by the user to input an operation signal instructing reproduction of audio data stored in the HDD 6 in the music program recording mode (step S101), the CPU 9 performs the reproduction control program 11E. Is executed, the audio data stored in the HDD 6 is decoded by the decoder 4 and output to the sound output device 300 for reproduction, and the still image data stored in the HDD 6 in association with the audio data is reproduced. Decoding processing is performed by the decoder 4 and output to the display device 200 for reproduction (step S102).

According to the digital broadcast recording apparatus 100 according to the first embodiment of the present invention described above, when the music program recording mode is designated by the input unit 7 by the CPU 9 executing the detection program 11B, The silent part of the video / audio data transmitted by broadcasting is detected, and the CPU 9 executes the acquisition program 11C, whereby still picture data is acquired from the video data of the detected silent part of the video / audio data, and the CPU 9 performs storage control. By executing the program 11D, the acquired still image data and the audio data from the silent part of the video / audio data to the next silent part of the silent part are associated with each other and stored in the HDD 6, and the CPU 9 When the audio data stored in the HDD 6 is reproduced by executing the reproduction control program 11E, the HD 6, an image based on the still image data stored in the image 6 is displayed on the display device 200, so that silent portions at the beginning and end of the song are detected, and still image data of the silent portion is acquired. One still image data is acquired, and only one piece of audio data and one still image data are stored in the HDD 6, so that the storage area of the HDD 6 can be used efficiently. Broadcasting of dedicated music channels can be recorded more efficiently.
Further, the beginning and end of the song are detected by the silent portion, and the audio data for one song is stored as one chapter in the HDD 6, so that it is possible to perform skip reproduction for each song.

(Second Embodiment)
For example, as shown in FIG. 5, the digital broadcast recording apparatus 400 according to the second embodiment differs from the digital broadcast recording apparatus 100 according to the first embodiment only in the configuration of the storage unit 21. Are denoted by the same reference numerals, and description thereof is omitted.
In the music program in the present embodiment, for example, audio data and video data in which still images are continuous are transmitted.

  The storage unit 21 includes, for example, a recording medium (not shown) in which programs, data, and the like are stored in advance, and this recording medium is configured by, for example, a semiconductor memory. The storage unit 21 also stores various data, various processing programs, data processed by the execution of these programs, and the like for realizing the function of the CPU 9 controlling the entire digital broadcast recording apparatus 400. More specifically, for example, as shown in FIG. 5, the storage unit 21 stores a normal recording program 11A, a detection program 11B, a determination program 21A, an acquisition program 21B, a storage control program 11D, a reproduction control program 11E, and the like. ing.

  The determination program 21A is a program that, for example, causes the CPU 9 to realize a function of determining whether or not there is a change in the video data in the silent portion of the video / audio data detected by executing the detection program 11B. More specifically, the determination program 21A determines, for example, whether or not the CPU 9 has detected the silent part by executing the detection program 11B. This is a program for realizing a function of determining whether or not there is a change in video data in the silent portion of the data. The CPU 9 functions as a determination unit by executing the determination program 21A.

  For example, when the acquisition program 21B determines that there is a change in the video data in the silent portion of the video / audio data by executing the determination program 21A in the CPU 9, the still image is obtained from the video data in the silent portion of the video / audio data. It is a program that realizes the function to acquire data. The CPU 9 functions as an acquisition unit by executing the acquisition program 21B.

Next, the operation of the music program recording mode of the digital broadcast recording apparatus 400 according to the second embodiment having the above-described configuration will be described with reference to the flowchart shown in FIG.
First, when an operation signal designating a music program recording mode is input by the user operating the input unit 7 (step S201), the CPU 9 executes the detection program 11B and is transmitted by digital broadcasting. A silent portion of the video / audio data to be detected is detected (step S202).

Next, the CPU 9 determines whether or not a silent part has been detected by executing the determination program 21A (step S203).
If the CPU 9 determines in step S203 that no silence has been detected (step S203; No), the process returns to step S202.
In step S203, when the CPU 9 determines that the silent part has been detected (step S203; Yes), the CPU 9 changes the video data in the silent part of the video / audio data based on the execution of the determination program 21A. It is determined whether or not there is (step S204).

If the CPU 9 determines in step S204 that there is no change in the video data in the silent portion of the video / audio data (step S204; No), the process returns to step S202.
In step S204, when the CPU 9 determines that there is a change in the video data in the silent part of the video / audio data (step S204; Yes), the CPU 9 executes the acquisition program 21B to execute the acquisition of the video / audio data. Still image data is acquired from the video data of the silent part (step S205).

  Next, the CPU 9 executes the detection program 11B to detect a silent portion of video / audio data transmitted by digital broadcasting (step S206).

Next, the CPU 9 determines whether or not a silent part has been detected by executing the determination program 21A (step S207).
If the CPU 9 determines in step S207 that no silence has been detected (step S207; No), the process returns to step S206.
In step S207, when the CPU 9 determines that the silent part is detected (step S207; Yes), the CPU 9 changes the video data in the silent part of the video / audio data based on the execution of the determination program 21A. It is determined whether or not there is (step S208).

If the CPU 9 determines in step S208 that there is no change in the video data in the silent portion of the video / audio data (step S208; No), the process returns to step S206.
If the CPU 9 determines in step S208 that the video data in the silent part of the video / audio data has changed (step S208; Yes), the CPU 9 executes the storage control program 11D in step S205. The acquired still image data and the audio data from the silent part of the video / audio data to the next silent part of the silent part are associated with each other and stored in the HDD 6 as one chapter (step S209).

Next, the CPU 9 determines whether or not an operation signal for ending recording has been input by operating the input unit 7 by the user (step S210).
In step S210, when the CPU 9 determines that the operation signal for ending the recording is not input (step S210; No), the process returns to step S205.
If the CPU 9 determines in step S210 that an operation signal for ending recording has been input (step S210; Yes), the process ends.

According to the digital broadcast recording apparatus 400 according to the second embodiment of the present invention described above, when the music program recording mode is designated by the input unit 7 by the CPU 9 executing the detection program 11B, the digital broadcast recording apparatus 400 The silent portion of the video / audio data transmitted by broadcasting is detected, and the CPU 9 executes the determination program 21A to determine whether or not the video data in the silent portion of the video / audio data has changed, and the CPU 9 executes the acquisition program 21B. When it is determined that there is a change in the video data in the silent part of the video / audio data, still image data is acquired from the video data in the silent part of the video / audio data, and the CPU 9 executes the storage control program 11D. From the still image data acquired and the silent part of the video / audio data, When the audio data stored in the HDD 6 is reproduced by the CPU 9 executing the reproduction control program 11E by associating with the audio data up to the next silent part of the sound part and stored in the HDD 6. Since an image based on the still image data stored in the HDD 6 is displayed on the display device 200, the silent portion at the beginning and end of the song is detected, and the still image data of the silent portion is acquired. One still image data is acquired, and only one piece of audio data and one still image data are stored in the HDD 6, so that the storage area of the HDD 6 can be used efficiently. Broadcasting of dedicated music channels can be recorded more efficiently.
Also, since the beginning and end of the song are determined not only by the silent part but also by whether there is a change in the video data in which the still images are continuous, even if the song includes a silent part in one song, It is possible to judge the beginning and end of the song more accurately.
Further, the beginning and end of the song are detected by the silent portion, and the audio data for one song is stored as one chapter in the HDD 6, so that it is possible to perform skip reproduction for each song.

(Third embodiment)
For example, as shown in FIG. 7, the digital broadcast recording apparatus 500 according to the third embodiment differs from the digital broadcast recording apparatus 100 according to the first embodiment only in the configuration of the storage unit 31. Are denoted by the same reference numerals, and description thereof is omitted.

  The storage unit 31 includes, for example, a recording medium (not shown) in which programs, data, and the like are stored in advance, and this recording medium is configured by, for example, a semiconductor memory. In addition, the storage unit 31 stores various data, various processing programs, data processed by executing these programs, and the like for realizing the function of the CPU 9 controlling the entire digital broadcast recording apparatus 500. More specifically, for example, as shown in FIG. 7, the storage unit 31 stores a video data file 31A, a normal recording program 11A, a detection program 11B, a storage control program 31B, a reproduction control program 31C, and the like.

The video data file 31A stores video data to be displayed on the display unit of the display device 200 during playback of a music program.
Specifically, for example, a message image or a landscape image indicating that a music program is being reproduced is arbitrary, and may be either a moving image or a still image.

  The storage control program 31B is, for example, a program for causing the CPU 9 to realize a function of storing the audio data from the silent part of the video / audio data to the next silent part of the silent part in the HDD 6 as one chapter. More specifically, the storage control program 31B executes, for example, the CPU 9 by executing the detection program 11B to determine whether or not a silent part has been detected. This is a program that realizes a function of storing audio data from the silent part of the audio data to the next silent part of the silent part in the HDD 6 as one chapter. The CPU 9 functions as a storage control unit by executing the storage control program 31B.

  The reproduction control program 31C is a program for realizing, for example, a function for causing the CPU 9 to display a video based on the video data stored in the video data file 31A on the display device 200 when the audio data stored in the HDD 6 is played back. is there. More specifically, the reproduction control program 31C, for example, causes the CPU 9 to decode the audio data stored in the HDD 6 by the decoder 4, output it to the sound output device 300 and reproduce it, and store it in the video data file 30C. This is a program for realizing a function of outputting the reproduced video data to the display device 200 and reproducing it. The CPU 9 functions as a reproduction control unit by executing the reproduction control program 31C.

Next, the operation in the music program recording mode of the digital broadcast recording apparatus 500 according to the third embodiment having the above-described configuration will be described with reference to the flowchart shown in FIG.
First, when an operation signal designating a music program recording mode is input by the user operating the input unit 7 (step S301), the CPU 9 executes the detection program 11B and is transmitted by digital broadcasting. A silent portion of the video / audio data to be detected is detected (step S302).

Next, the CPU 9 determines whether or not a silent portion has been detected by executing the storage control program 31B (step S303).
If the CPU 9 determines in step S303 that no silence has been detected (step S303; No), the process returns to step S302.
In step S303, when the CPU 9 determines that a silent part has been detected (step S303; Yes), the CPU 9 executes the detection program 11B again to thereby silence the video / audio data transmitted by digital broadcasting. Part is detected (step S304).

Next, the CPU 9 determines whether or not a silent part has been detected by executing the storage control program 31B (step S305).
If the CPU 9 determines in step S305 that no silence has been detected (step S305; No), the process returns to step S304.
In step S305, when the CPU 9 determines that a silent part has been detected (step S305; Yes), the CPU 9 follows the silent part of the video / audio data from the silent part based on the execution of the storage control program 31B. The voice data up to the silent part is stored in the HDD 6 as one chapter (step S306).

Next, the CPU 9 determines whether or not an operation signal for ending recording has been input by operating the input unit 7 by the user (step S307).
If the CPU 9 determines in step S307 that an operation signal for ending recording has not been input (step S307; No), the process returns to step S304.
If the CPU 9 determines in step S307 that an operation signal for ending recording has been input (step S307; Yes), the process ends.

  Next, the reproduction operation of the audio data stored in the HDD 6 in the music program recording mode in the digital broadcast recording apparatus 500 according to the third embodiment of the present invention will be described with reference to the flowchart shown in FIG.

  First, when the input unit 7 is operated by the user to input an operation signal instructing reproduction of audio data stored in the HDD 6 in the music program recording mode (step S401), the CPU 9 performs the reproduction control program 31C. , The audio data stored in the HDD 6 is decoded by the decoder 4 and output to the sound output device 300 for reproduction, and the video data stored in the video data file 31A is output to the display device 200. To reproduce (step S402).

According to the digital broadcast recording apparatus 500 according to the third embodiment of the present invention described above, when the music program recording mode is designated by the input unit 7 by the CPU 9 executing the detection program 11B, When the silent part of the video / audio data transmitted by broadcasting is detected and the CPU 9 executes the storage control program 31B, the audio data from the silent part of the video / audio data to the next silent part of the silent part is 1 When the audio data stored in the HDD 6 is reproduced by the CPU 9 executing the reproduction control program 31C as a single chapter, the video based on the predetermined video data is displayed on the display device 200. In this case, only the audio data is stored in the HDD 6, and the storage area of the HDD 6 is used efficiently. It can be, it is possible to more efficiently record the broadcast of music-only channel.
Further, the beginning and end of the song are detected by the silent portion, and the audio data for one song is stored as one chapter in the HDD 6, so that it is possible to perform skip reproduction for each song.
Further, when the audio data is reproduced, the predetermined video data stored in advance is displayed on the display device 200, and the audio data and the predetermined video data can be viewed. Audio data can be reproduced more suitably.

In the first embodiment of the present invention, the still image data is acquired from the video data of the silent part of the video / audio data. However, between the silent part and the silent part next to the silent part. It may be acquired from the video / audio data at preset time intervals. In this case, when reproducing the audio data, the acquired still image data may be switched every predetermined time and output by the display device.
By configuring in this way, the silent part at the beginning and the end of the music is detected, and still image data is acquired for each preset time interval among the music between the silent parts. As a result, a predetermined number of still image data is acquired, and only the audio data for one song and the predetermined number of still image data are stored in the HDD 6, so that the storage area of the HDD 6 is efficiently used. It is possible to record the broadcast of the music dedicated channel more efficiently.
Further, even in a program in which audio data and video data that is a moving image are broadcast, still image data is acquired from the video data at predetermined time intervals, and the audio data stored in the HDD 6 is reproduced. At this time, since the image based on the still image data is switched every predetermined time and displayed on the display device 200, the video data as a moving image can be roughly viewed.
Further, the acquisition of still image data from the video / audio data between the silent part and the next silent part of the silent part may not be performed every preset time interval.

  In the third embodiment of the present invention, an OSD circuit or the like may be provided in the digital broadcast recording device 500, and a predetermined OSD display is displayed on the display device 200 instead of the video based on the video data file 31A. May be.

1 is a diagram showing a schematic configuration of a digital broadcast recording apparatus according to the present invention. 1 is a block diagram showing a configuration of a digital broadcast recording apparatus according to a first embodiment of the present invention. It is a flowchart explaining an example of operation | movement of the music program recording mode of the digital broadcast recording apparatus concerning the 1st Embodiment of this invention. It is a figure explaining an example of reproduction | regeneration operation | movement of the audio | voice data memorize | stored in HDD by the music program recording mode in the digital broadcast recording device which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the digital broadcast recording apparatus which concerns on the 2nd Embodiment of this invention. It is a flowchart explaining an example of operation | movement of the music program recording mode of the digital broadcast recording apparatus concerning the 2nd Embodiment of this invention. It is a block diagram which shows the structure of the digital broadcast recording apparatus which concerns on the 3rd Embodiment of this invention. It is a flowchart explaining an example of operation | movement of the music program recording mode of the digital broadcast recording apparatus concerning the 3rd Embodiment of this invention. It is a figure explaining an example of reproduction | regeneration operation | movement of the audio | voice data memorize | stored in HDD by the music program recording mode in the digital broadcast recording device which concerns on the 3rd Embodiment of this invention.

Explanation of symbols

6 HDD (storage means)
7 Input section (specifying means)
9 CPU (detection means, acquisition means, storage control means, reproduction control means, judgment means)
11B detection program (detection means)
11C, 21B acquisition program (acquisition means)
11D, 31B storage control program (storage control means)
11E, 31C Reproduction control program (reproduction control means)
21A Judgment program (judgment means)
100, 400, 500 Digital broadcast recording device 200 Display device

Claims (2)

In a digital broadcast recording apparatus for recording video / audio data transmitted by digital broadcasting,
A designation means for designating a music program recording mode;
Detecting means for detecting a silent portion of video and audio data transmitted by digital broadcasting when a music program recording mode is designated by the designation means;
Acquisition means for acquiring still image data for each preset time interval from video data between the silent part of the audio / video data detected by the detecting means and the next silent part of the silent part;
Storage control means for associating the still image data acquired by the acquisition means with the audio data from the silent part of the audio / video data to the next silent part of the silent part in the storage means of its own device When,
Reproduction control means for switching the image based on the still image data stored in the storage means at predetermined time intervals and reproducing the sound data stored in the storage means on a display device connected to the own apparatus ; ,
A digital broadcast recording apparatus comprising: In a digital broadcast recording apparatus for recording audio / video data of a music program composed of audio data transmitted by digital broadcasting and video data in which still images are continuous,
A designation means for designating a music program recording mode;
Detecting means for detecting a silent portion of video and audio data transmitted by digital broadcasting when a music program recording mode is designated by the designation means;
Determining means for determining whether or not there is a change in the video data in the silent portion of the video and audio data;
An acquisition means for acquiring still image data from the video data of the silent portion of the video and audio data when the determination means determines that there is a change in the video data in the silent portion of the video and audio data;
Storage control means for associating the still image data acquired by the acquisition means with the audio data from the silent part of the audio / video data to the next silent part of the silent part in the storage means of its own device When,
Reproduction control means for displaying an image based on the still image data stored in the storage means on a display device connected to the own apparatus when reproducing the audio data stored in the storage means;
A digital broadcast recording apparatus comprising:

Images