JP2006140774A - Moving picture display apparatus, information display method, and information display program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving picture display apparatus, an information display method, and an information display program whereby contents of a recorded broadcast program can easily be grasped. <P>SOLUTION: A second control section 22 accesses a card medium 331, reads the information or the like of a moving picture file of the ASF system stored in the card medium 331, acquires a title from header information and stores the information to a RAM 24. A companding processing section 25 decodes a head frame of the moving picture file of the ASF system, decodes the picture, allows a display section 6 to display thumbnail pictures of the moving picture file of the ASF system on a thumbnail display area 600. When a cursor moving key of a key entry section 8 is operated, the companding processing section 25 acquires the title of the moving picture file of the ASF system at a position at which a cursor is stopped from the RAM 24 and displays the title on an information display area 601 of the display section 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a moving image display apparatus, an information display method, and an information display program having a function of reproducing a moving image file recorded on a recording medium.

Conventionally, as a portable video playback device that does not include an input device such as a keyboard, there is a technology that can efficiently edit content data without displaying an edit screen or creating a comment sentence by the user. It has been proposed (see, for example, Patent Document 1).
JP 2003-274352 A

  By the way, in recent years, programs (video files) recorded by a hard disk recorder can be converted into an ASF (Advanced Systems Format) format, which is a streaming distribution data format, and stored on a recording medium such as an SD card, and the recording medium can be displayed in a wide display. A technique for reproducing a program (moving image file) that is stored in a portable terminal or the like is known.

  The hard disk recorder has a program navigation function for editing a moving image file recorded in the hard disk device, and a moving image file to be edited can be given a title by remote control operation. Then, it is possible to copy contents such as a moving image file recorded on the hard risk device to a recording medium such as a DVD recording medium or an SD card.

  However, the above-described conventional technology does not consider the ASF format moving image file that is the streaming distribution data format, and has a problem that it is difficult to grasp the content of the moving image file.

  Accordingly, an object of the present invention is to provide a moving image display apparatus, an information display method, and an information display program that can easily grasp the contents of a broadcast program.

  In order to achieve the above object, a moving picture display device according to the invention described in claim 1 includes a display means for reproducing and displaying a moving picture, a recording medium for storing a moving picture file including character information indicating broadcast content in at least header information, Information acquisition means for acquiring character information from the header information of the moving image file recorded on the recording medium, character information storage means for storing character information acquired by the information acquisition means, and stored in the recording medium A first thumbnail generation unit that obtains a frame image from a moving image file, generates a thumbnail image from the frame image, and displays a list of thumbnail images generated by the thumbnail generation unit in a first display area of the display unit. Display control means and one of the thumbnail images displayed as a list by the first display control means. A designation means for designating a thumbnail image, and a second information for reading out the character information of the moving image file corresponding to the thumbnail image designated by the designation means from the character information storage means and displaying it in the second display area of the display means. And a display control means.

  As a preferred aspect, for example, as in claim 2, in the information display device according to claim 1, the recording medium stores a moving image file converted from a broadcast program recorded by an external device, and the device May be removable.

  In order to achieve the above object, an information display method according to the invention described in claim 3 is an information acquisition step of acquiring character information from a recording medium storing a moving image file in which header information includes character information indicating broadcast contents. A character information storage step for storing the character information acquired in the information acquisition step in a memory; a frame image is acquired from the moving image file stored in the recording medium; and a thumbnail image is generated from the frame image A thumbnail generation step, a first display control step for displaying a list of thumbnail images generated in the thumbnail generation step in a first display area of a display unit for reproducing and displaying a moving image, and the first display control step A designation step for designating one thumbnail image from among the thumbnail images displayed in a list by: Reading from said memory the character information of the moving image file corresponding to the designated thumbnail image by specifying step, characterized in that and a second display control step of displaying on the second display area of the display unit.

  To achieve the above object, an information display program according to a fourth aspect of the present invention is an information display program executed by a computer including a moving image display unit and a detachable recording medium, and the storage medium includes a header. A video file in a format including character information indicating the broadcast content is stored in the information, an information acquisition step of acquiring character information from this recording medium, and the character information acquired in this information acquisition step in the order of acquisition A plurality of character information storage steps for storing, a thumbnail generation step for acquiring a frame image from a moving image file stored in the recording medium, and generating a thumbnail image from the frame image, and a thumbnail generated by the thumbnail generation step A first display system for displaying a list of images in a first display area of the moving image display unit. Step, a designation step for designating one thumbnail image from among the thumbnail images displayed in a list by the first display control step, and character information of the video file corresponding to the thumbnail image designated by the designation step. A second display control step of reading from the memory and displaying in the second display area of the moving image display unit is executed by the computer.

  According to the first aspect of the present invention, the character information is acquired from the header information of the moving image file recorded on the recording medium by the information acquiring unit, and the frame image is stored from the moving image file stored on the recording medium by the thumbnail generating unit. Are obtained, and a thumbnail image is generated from the frame image. A list of thumbnail images generated by the first display control means is displayed in the first display area of the display means, and one thumbnail image is designated from among the thumbnail images displayed as a list by the designation means. Then, the character information of the moving image file corresponding to the designated thumbnail image is read from the character information storage means and displayed in the second display area of the display means. Therefore, there is an advantage that the contents such as the broadcast title of the recorded broadcast program can be easily grasped.

  According to the second aspect of the present invention, since the moving image file converted from the broadcast program recorded by the external device is stored on the recording medium and can be attached to and detached from the apparatus, There is an advantage that the contents such as the broadcast title of the broadcast program recorded by the device can be easily grasped.

  According to the third aspect of the present invention, the information for acquiring the character information is obtained from the recording medium for storing a plurality of moving image files including the character information indicating the broadcast contents in the header information, and the obtained character information is stored in the memory. A first display area of a display unit for storing a frame image from a moving image file stored in the recording medium, generating a thumbnail image from the frame image, and reproducing and displaying a list of the thumbnail images To display. When one thumbnail image is designated from the thumbnail images displayed as a list, the character information of the moving image file corresponding to the designated thumbnail image is read from the memory, and the second display of the display unit is performed. Display in the area. Therefore, there is an advantage that the contents such as the broadcast title of the recorded broadcast program can be easily grasped.

  According to the invention described in claim 4, in the information acquisition step of acquiring the character information from the recording medium in which the moving image file of the format including the character information indicating the broadcast content is stored in the header information, and the information acquisition step A character information storage step for storing a plurality of acquired character information in a memory in the order of acquisition, and a thumbnail generation step for acquiring a frame image from a moving image file stored in the recording medium and generating a thumbnail image from the frame image A list of thumbnail images generated in the thumbnail generation step is displayed as a list in a first display control step for displaying a moving image in the first display area of the moving image display unit, and in the first display control step. In the designation step to specify one thumbnail image from among the thumbnail images that are Since the character information of the moving image file corresponding to the specified thumbnail image is read from the memory and displayed in the second display area of the moving image display unit, the computer executes the second display control step. There is an advantage that the contents such as the broadcast title of the recorded broadcast program can be easily grasped.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

A. Configuration of Embodiment Next, FIG. 1 is an external view corresponding to a front view of a state in which a lid of a mobile phone 1 according to this embodiment is opened and closed. 1A shows a state in which the cover of the mobile phone 1 is opened, FIG. 1B shows a state in which the cover of the mobile phone 1 is closed (lid side), and FIG. The state (back side) where the cover of the telephone 1 is closed is shown.

  As shown in the figure, the lid 2 can be opened and closed with respect to the main body 3 with the first hinge 100 as a rotation axis (arrow α), and can be rotated with the second hinge 12 as a rotation axis (arrow). β). The lid 2 includes a first speaker 5, a display unit 6, and a built-in antenna (not shown) for data communication. The first speaker 5 is a dynamic speaker and is disposed on the inner surface of the lid portion 2. The display unit 6 is a 2.7 inch (240 × 428 dot) TFT liquid crystal (having a resolution equivalent to QVGA or HVGA) that is arranged on the inner surface of the lid unit 2 and can display an image with an aspect ratio of 16: 9. It is configured to play and display a movie based on a movie file.

  The first hinge part 100 is connected to the lid part 2 and rotates integrally with the lid part 2. The first hinge part 100 is fixed to the main body part 3 side and is provided with a pair of left and right parts provided on both sides of the movable part 101. It is comprised by the fixing | fixed part 102,103.

  The main body 3 includes a key input unit 8 and a microphone 10. The key input unit 8 includes a cross key 81 for moving the focus during menu display, a determination key 82 for determination, an address book key 83 for browsing address book data, and a network connection key 84 for instructing network connection. , A movie playback key 85 for starting the movie playback mode, a mail key 86 for starting the mail mode (reception, creation, editing, transmission), an off-hook key 87, a clear key 88 (cancel detection), an on-hook key 89 ( All clear: Jump instruction to wait for incoming call), and a numeric keypad 810 for inputting a telephone number and a character symbol. In addition, on the back surface of the main body, an imaging lens 17 for photographing, and speakers 7R and 7L for reproducing ringtones, alarms, and melody are arranged.

  Next, FIG. 2 is a block diagram showing a circuit configuration of the mobile phone 1 according to the present embodiment. When the reception signal processing unit 18 receives an instruction to start the data communication mode from the switch circuit 201, the reception signal processing unit 18 starts negotiation (terminal authentication, line connection) with an external wireless base station, and temporarily occupies the communication bandwidth. I do. Then, a signal that is code-modulated to the own device is extracted from the radio signal received by the built-in antenna 16 and is output to the communication data processing unit 202 via the switch circuit 201.

  The communication signal processing unit 19 is always supplied with power both in the standby state and in the data communication mode, and includes a digital modulation signal (transmission voice data, mail data, network connection information) from the communication data processing unit 202. Packet data) is code-modulated and output from the main antenna 11. On the other hand, a signal which is transmitted from the radio base station and received by the main antenna 11 and code-modulated to its own device is extracted and output to the communication data processing unit 202 via the switch circuit 201. .

  Note that the built-in antenna 16 and the main antenna 11 are in a positional relationship effective for space diversity reception, regardless of whether the lid 2 is rotated or closed.

  The first control unit 20 performs processing centering on connection control with information resources such as a radio base station and a database connected via a network infrastructure such as a communication service provider or the Internet at the subsequent stage. In the present embodiment, the cellular phone 1 has two control units, and the communication processing in general is the first control unit 20, and other shooting processing, image processing, and video reproduction processing will be described later. This is performed by the second control unit 22.

  The switch circuit 201 receives a control signal from the communication data processing unit 202, and controls the supply of power to the reception signal processing unit 18 and the communication signal processing unit 19 and the end of processing operation. Specifically, in the normal power-on state or the reception ON mode state, power is supplied only to the communication signal processing unit 19 to operate, while the user operates the network connection key 84, or When the start of the data communication mode is instructed according to a preset schedule, the reception signal processing unit 18 and the communication signal processing unit 19 are operated.

  The communication data processing unit 202 modulates CELP digital audio data output from the audio processing unit 205 into a signal corresponding to the PSK system, and modulates the signal into a spread code, and also receives the received signal processing unit 18 and the communication signal processing unit 19. The code-modulated signal received at 1 is decoded into a digital signal of the PSK system and / or QAM system.

  The system ROM 203 stores a control program for communication control. As a feature of the present embodiment, an operation switching control program between the reception signal processing unit 18 and the communication signal processing unit 19 is stored in addition to a normal communication negotiation program. Thus, when the start of the data communication mode is instructed, space diversity reception is performed by the main antenna 11 and the built-in antenna 16 to temporarily occupy the communication bandwidth, and the reception signal processing unit 18, communication signal processing The code-modulated signals output from both of the units 19 are decoded and synthesized into digital signals almost simultaneously, and a program output to the bus 200 via the interface processing unit 204 is stored.

  The audio processing unit 205 includes a CELP audio modulation / demodulation system and an MPEG audio audio demodulation system, and outputs analog audio output from the audio processing unit 205 from the first speaker 5 in a call state. Let In the movie playback mode, the switch 31 controls the second control unit 22 to send audio signals to both the second speaker 7R and the third speaker 7L when the audio data stored in the movie file is stereo-compatible. Output. The second speaker 7L is also driven by the notification driver 26, and reproduces and outputs an incoming notification sound.

  The second control unit 22 controls the movie file downloaded in the data communication mode in the movie playback mode, the still image / moving image playback display process in the camera mode, and the overall shooting process in the camera mode. In particular, in the present embodiment, the second control unit 22 analyzes the header information of the ASF format moving image file, and if there is a title (Title), acquires the character string, and the moving image indicated by the cursor A process of displaying the title of the file (ASF fill) is performed. In the present embodiment, parallel processing with the first control unit 20 described above can be performed at the time of an incoming call interruption by the mobile phone function. It is assumed that the processing unit 204 performs.

  The program ROM 23 stores processing programs relating to the analysis of header information of movie playback mode, camera mode, and ASF format moving image file. The RAM 24 stores various data necessary for data communication processing, voice communication, header information of an ASF format moving image file, and the like.

  When storing a broadcast program, the hard disk recorder is recorded and saved in the internal hard disk in the MPEG-2 format. On the other hand, the recorded broadcast content (program title name, broadcast date and time, character information such as performers) is multiplexed with the broadcast content if it is a digital terrestrial broadcast, or EPG (electronic program guide in advance) ), Etc. are acquired by recording reservation and stored in association with the recorded broadcast program. However, when the data is played back on a device such as a mobile phone that does not have an advanced image processing unit, it is converted back to the ASF format and transferred to a recording medium such as an SD card. At the time of this re-conversion, the previously acquired broadcast content is inserted into the “Title” portion of the “Content Description Object” defined by the ASF format.

  Here, FIG. 3 is a conceptual diagram showing a structure of “Content Description Object” defined in the ASF format. The ASF format has a 16-byte identification code (Object ID) indicating that the top is “Content Description Object”, the next is the 8-byte “Content Description Object” size (Object Size), and the next is the title Length (Title Length), author length (Author Length), copyright length (Copyright Length), "Description Length", "Rating Length", followed by "Title" for each length, “Author”, “Copyright”, “Description”, and “Rating” are inserted.

  Next, the compression / decompression processing unit 25 supports MPEG-2, -4, and ASF systems, compresses still images / moving images shot in the camera mode, and uses the data communication mode in the movie playback mode. The downloaded movie file, the still image / moving image in the camera mode, and the ASF format moving image file (moving image file) stored in the card medium 331 such as an SD card are decompressed.

  The notification driver 26 operates the notification LED 13 and the third speaker 7L in order to sound a ringtone or an alarm notification sound. The switch processing unit 27 outputs control signals to the first control unit 20 and the second control unit 22 in response to operation detection from the key input unit 8, the first side key 90, the second side key 91, and the shutter key 92. To do.

  In the subsequent stage of the camera lens 17, an imaging device 171 including an image sensor such as a CCD or CMOS and a step motor for optical zoom, and an analog signal captured by the imaging device are converted into a digital signal, A DSP 172 for generating image data is provided. The effective pixel area of the image sensor in the present embodiment is fixed to an aspect ratio of 4: 3. The cradle connector 32 is for charging a battery (not shown) with electric power from the cradle when it is installed on a cradle, that is, an installation table that also serves as a charging table, and is connected to the bus via the connector interface 31. ing. A recording medium 331 such as an SD card is mounted in the memory card slot 330 (33).

B. Operation of Embodiment Next, the operation of the above-described embodiment will be described.

  FIG. 4 is a flowchart for explaining the operation of the mobile phone 1 according to the present embodiment. First, the second control unit 22 accesses a card medium 331 such as an SD card, reads an ASF format moving image file stored in the card medium 331, and starts from the “Title” portion of the “Content Description Object” of the header information. Title information is acquired, and the title information is stored in the built-in RAM 24 together with the file information (step S10).

  Next, the compression / decompression processing unit 25 decodes the first frame of the moving image data in each ASF format moving image file for displaying the first frame, that is, the thumbnail, restores the image, and displays it on the display unit 6 as shown in FIG. As described above, the thumbnails A to I for the respective ASF format moving image files are displayed in the thumbnail display area 600 (step S12).

  Next, the title information of the ASF format moving image file (corresponding to the thumbnail A) at the top left as the first cursor position is displayed in the information display area 601, and the cursor position at the top left position is stored in the RAM 24. (Step S14). Thereafter, it is determined whether or not a key operation of the cursor movement key (+/−) is detected by the key input unit 8 (step S16). When the key operation is detected, the cursor is moved (step S18).

  Next, it is determined whether or not the amount of movement of the cursor exceeds the maximum value that can be displayed on the screen (up to nine thumbnails in the example shown in FIG. 5) (step S20). If it is larger, the process returns to step S10 to display ten or more thumbnails, accesses the card medium 331 again, obtains ASF file information for the next list display, decodes the first frame, and displays thumbnails. Do.

  On the other hand, when the amount of movement of the cursor is within the maximum displayable value, the current cursor stop position is acquired (step S22), and the previous cursor position and the current cursor position stored in the RAM 24 are obtained. The comparison is made to determine whether or not the cursor stop position needs to be updated (step S24). If the previous cursor position is the same as the current cursor position, the cursor position is not updated, the title display is not updated, and the process returns to step S16 to wait for the next key input in the key input unit 8. become.

  On the other hand, when the previous cursor position is different from the current cursor position, the title of the corresponding ASF file (moving image file) at the cursor stop position is acquired from the RAM 24 as the stop position is updated (step S26). Is displayed in the information display area 601 shown in FIG. In the example of FIG. 5, the title “XXXXXXX” of the thumbnail image H indicated by diagonal lines is displayed. After that, the process returns to step S16 and waits for the next key input at the key input unit 8.

  Hereinafter, every time the cursor position is updated, the title information of the moving picture file in the ASF format at the cursor stop position is acquired from the RAM 24 and displayed in the information display area 601 shown in FIG.

  According to the above-described embodiment, when displaying a list of thumbnails of ASF format moving image files, the title information of the ASF format moving image files at the cursor position is displayed. The advantage of being able to easily grasp the contents of is obtained.

  In the above-described embodiment, the mobile phone has been described as the information display device. However, the information display device is not limited to this and may be a personal digital assistant (PDA) or an information display device specialized for video and still image playback.

It is an external view equivalent to the front view of the state which opened and closed the cover of the mobile telephone 1 which concerns on embodiment of this invention. It is a block diagram which shows the circuit structure of the mobile telephone 1 by this embodiment. It is a conceptual diagram which shows the structure of the format which concerns on the moving image file of ASF format by this embodiment. 4 is a flowchart for explaining the operation of the mobile phone 1 according to the present embodiment. It is a schematic diagram which shows the example of a screen in the thumbnail display by this embodiment.

Explanation of symbols

1 Mobile phone (video display device)
2 Lid 3 Main body 5 First speaker 6 Display (display means)
7R 2nd speaker 7L 3rd speaker 8 Key input part (designating means)
10 Microphone 11 Main antenna 12 Second hinge 13 LED for notification
Reference Signs List 16 built-in antenna 17 imaging lens 18 received signal processing unit 19 communication signal processing unit 20 first control unit 22 second control unit (information acquisition unit, first display control unit, second display control unit)
23 Program ROM
24 RAM (character information storage means)
25 Compression / decompression processing unit (thumbnail generation means)
26 Notification Driver 27 Switch Processing Unit 30 Audio Output System Driver 31 Switch 61 Display Driver 62 Display Buffer 90 First Side Key 91 Second Side Key 92 Shutter Key 100 First Hinge Unit 201 Switch Circuit 202 Communication Data Processing Unit 203 System ROM
205 Audio Processing Unit 206 Switch Circuit 207 Audio Amplifier 330 Memory Card Slot 331 Card Medium (Recording Medium, External Recording Medium)
600 Thumbnail display area (first display area)
601 Information display area (second display area)

Claims (4)

Display means for playing and displaying the video;
A recording medium for storing a moving image file including at least character information indicating broadcast contents in header information;
Information acquisition means for acquiring character information from the header information of the moving image file recorded on the recording medium;
Character information storage means for storing character information acquired by the information acquisition means;
A thumbnail generation means for acquiring a frame image from a moving image file stored in the recording medium and generating a thumbnail image from the frame image;
First display control means for displaying a list of thumbnail images generated by the thumbnail generation means in a first display area of the display means;
Designation means for designating one thumbnail image from among the thumbnail images displayed as a list by the first display control means;
Second display control means for reading character information of a moving image file corresponding to the thumbnail image designated by the designation means from the character information storage means and displaying the character information in a second display area of the display means. A moving image display device.   The moving image display device according to claim 1, wherein the recording medium stores a moving image file converted from a broadcast program recorded by an external device, and is detachable from the device. An information acquisition step for acquiring character information from a recording medium that stores a moving image file in a format that includes character information indicating broadcast content in header information;
A character information storage step for storing the character information acquired in this information acquisition step in a memory;
A thumbnail generation step of acquiring a frame image from a moving image file stored in the recording medium and generating a thumbnail image from the frame image;
A first display control step for displaying a list of thumbnail images generated in the thumbnail generation step in a first display area of a display unit for reproducing and displaying a moving image;
A designation step for designating one thumbnail image from among the thumbnail images displayed in a list by the first display control step;
A second display control step of reading character information of the moving image file corresponding to the thumbnail image specified in the specifying step from the memory and displaying the character information in the second display area of the display unit. Display method. An information display program executed by a computer including a moving image display unit and a removable recording medium,
The storage medium stores a moving image file in a format including character information indicating broadcast content in header information, and an information acquisition step of acquiring character information from the recording medium;
A character information storage step of storing a plurality of character information acquired in this information acquisition step in the order of acquisition;
A thumbnail generation step of acquiring a frame image from a moving image file stored in the recording medium and generating a thumbnail image from the frame image;
A first display control step for displaying a list of thumbnail images generated in the thumbnail generation step in a first display area of the moving image display unit;
A designation step for designating one thumbnail image from among the thumbnail images displayed in a list by the first display control step;
Character information of a moving image file corresponding to the thumbnail image specified in the specifying step is read from the memory, and a second display control step for displaying the character information in a second display area of the moving image display unit is executed. Information display program.

Images