JP2014127980A - Apparatus and method for recording and playback - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus and a method for recording and playback, achieving highly efficient playback for a user when playing back a recorded broadcast program.SOLUTION: The recording and playback apparatus includes: a recording device for recording broadcast data of a broadcast program; a caption data acquisition unit for acquiring caption data from the broadcast data; a chapter setting unit for setting a chapter division point for each time when a caption display is started in the broadcast program on the basis of the caption data; and a skip processing unit for moving from a chapter in the middle of playback to the top of the next chapter to play back on receipt of a skip operation during the playback of the broadcast program.

Description

  Embodiments described herein relate generally to a recording / reproducing apparatus and a recording / reproducing method capable of recording a program received by digital broadcasting.

  In recent years, terrestrial digital broadcasting and BS / CS digital broadcasting have been fully operated, and an environment in which many programs can be viewed with high image quality and high sound quality has been established. Digital broadcasting is equipped with an electronic program guide (EPG) system, and the program guide for the day or one week ahead is displayed just by pressing a button on the remote controller of the receiver. Performers can easily display program contents, search for information they want to know, program viewing reservations and recording reservations.

  As the number of channels increases, the broadcast time of the program that the viewer wants to watch increases, and the broadcast time may overlap, so the opportunity to record the program and watch the program at the convenience of the user Has increased. There has been proposed a playback method for appropriately controlling the playback speed when playing back a recorded program and performing playback efficiently for the viewer.

JP 2008-166773 A

  When viewing a large number of recorded programs, there is a case in which a quick playback function is used. The quick and fast playback function is a function that plays back at a playback speed faster than the normal speed when the normal playback speed is set to the normal speed. By using this function, the contents of the program can be grasped in a short time.

  Depending on the playback speed, audio may or may not be accompanied, but there is a limit to the speed at which a general viewer can recognize voice, and for example, voice recognition may not be possible even at about 1.5 times speed. In such a case, since the contents of the program cannot be understood well, the playback speed has to be slowed down, and the viewer cannot perform efficient playback when listening quickly and quickly.

  An object of the present invention is made in view of the above circumstances, and provides a recording / reproducing apparatus and a recording / reproducing method for realizing efficient reproduction for a user when reproducing a recorded broadcast program. That is.

  In order to achieve the above object, according to the embodiment, a recording / reproducing device includes a recording device that records broadcast data of a broadcast program, a caption data acquisition unit that acquires caption data from the broadcast data, and the caption data A chapter setting unit for setting a chapter division point every time the subtitle display starts in the broadcast program, and a next chapter from the chapter being played when a skip operation instruction is received during playback of the broadcast program. And a skip processing unit that moves to the beginning of the file and reproduces it.

1 is an external perspective view of a recording / reproducing apparatus according to a first embodiment. 1 is a block diagram showing a configuration of a recording / reproducing apparatus according to a first embodiment. The external view of the remote control which concerns on embodiment. The block diagram which showed the structure of the reproduction | regeneration control part which concerns on 1st Embodiment. FIG. 5 is a state machine diagram of skip processing and reverse processing in the first embodiment. The figure which showed the example of the area where the subtitle was displayed with respect to the display of an image | video and an audio | voice in reproduction | regeneration of a program. The figure which showed the state skipped to the chapter by which next subtitles are started by skip operation. The figure which showed the state in which an example of the subtitle reproduction | regeneration bar was displayed on the screen. The block diagram which showed the structure of the recording / reproducing apparatus which concerns on 2nd Embodiment. The block diagram which showed the structure of the reproduction | regeneration control part which concerns on 2nd Embodiment. The state machine figure of the skip process and reverse process in 2nd Embodiment. The figure which showed the state skipped to the chapter by which next subtitles are started by skip operation. The block diagram which showed the structure of the recording / reproducing apparatus which concerns on 3rd Embodiment. The block diagram which showed the structure of the reproduction | regeneration control part which concerns on 3rd Embodiment. FIG. 10 is a state machine diagram of high-speed playback processing and reverse processing in the third embodiment. The figure which showed the state reproduced at high speed to the chapter where the next subtitle is started by subtitle reading completion operation. The block diagram which showed the structure of the recording / reproducing apparatus which concerns on 4th Embodiment. The block diagram which showed the structure of the reproduction | regeneration control part which concerns on 4th Embodiment. Fourthly, a state machine diagram of high-speed playback processing and reverse processing in the embodiment. The figure which showed the state reproduced at high speed to the chapter where the next subtitle is started by subtitle reading completion operation. The block diagram which showed the structure of the recording / reproducing apparatus which concerns on 5th Embodiment. The block diagram which showed the structure of the reproduction | regeneration control part which concerns on 5th Embodiment. FIG. 5 is a state machine diagram of playback speed change processing and reverse processing in the fifth embodiment. The figure which showed the state which calculated the speed which reads a user's subtitle from subtitle reading completion operation, and changed the reproduction speed. The block diagram which showed the structure of the recording / reproducing apparatus which concerns on 6th Embodiment. The block diagram which showed the structure of the reproduction | regeneration control part which concerns on 6th Embodiment. The block diagram which showed the structure of the recording / reproducing apparatus which concerns on 7th Embodiment. The block diagram which showed the structure of the reproduction | regeneration control part which concerns on 7th Embodiment. The block diagram which showed the structure of the recording / reproducing apparatus which concerns on 8th Embodiment. The block diagram which showed the structure of the reproduction | regeneration control part which concerns on 8th Embodiment.

(First embodiment)
The first embodiment will be described below with reference to the drawings. FIG. 1 is an external perspective view of a recording / reproducing apparatus 1 according to the first embodiment. The recording / reproducing apparatus 1 receives a digital broadcast, can record (record) and reproduce the received broadcast program video data and audio data, and displays a broadcast program video on a screen. Computer) and a video recording / playback apparatus such as a portable terminal.

  As an embodiment of the recording / reproducing apparatus 1, a digital television will be described as an example. The recording / reproducing apparatus 1 includes a main body 2 and a stand 3 that supports the main body 2. In the main body 2, a display panel 4 such as a liquid crystal panel or a PDP (Plasma Display Panel) panel is disposed on the front side, and a frame (not shown) that supports the display panel 4 is disposed on the back side of the display panel 4. A circuit board and a power supply circuit (not shown) for driving the display panel 4 are installed on the frame.

  The main body 2 has an outer surface by a front cover 5 that covers a part of the front side, top surface, bottom surface, and both side surfaces of the main body 2 and a back cover 6 that covers a part of the back side, top surface, bottom surface, and both side surfaces of the main body 2. being surrounded. The screen 7 is a display portion inside the window portion 5 a of the front cover 5 of the display panel 4.

  The remote controller 8 is an operation device that transmits an operation signal to the operation receiving unit of the recording / reproducing apparatus 1 using wireless communication such as infrared or Bluetooth (registered trademark).

  FIG. 2 is a block diagram showing the configuration of the recording / reproducing apparatus 1 according to the first embodiment. The antenna 10 is an antenna for terrestrial digital broadcast or satellite digital broadcast for receiving broadcast radio waves transmitted from the broadcast station 11. The tuner 12 selects a broadcast signal of a desired channel from broadcast signals of terrestrial digital broadcast, satellite digital broadcast, or cable television broadcast. The tuner 12 is composed of a plurality of tuner units, and can receive a plurality of broadcasts at the same time. The antenna terminal 12a is a terminal to which the antenna 10 is connected.

  The demodulator 13 demodulates corresponding to each digital broadcast modulation method. Terrestrial digital broadcast signals are demodulated to OFDM (Orthogonal Frequency Division Multiplexing) demodulation, and satellite digital broadcast signals are demodulated to MPEG2 (Moving Picture Experts Group phase 2) -TS (Transport Stream) by PSK (Phase Shift Keying) demodulation. And output to the decoding processing unit 14. The demodulator 13 demodulates the IP broadcast received from the network 32 such as the Internet via the network transmission / reception unit 31.

  The decode processing unit 14 has functions such as an MPEG decoder and a video / audio decoder. The decode processing unit 14 sections the MPEG2-TS data transmitted from the demodulator 13 and decodes the program information data. Video ES (Packetized Elementary Stream) is converted to Video ES (Elementary Stream), Audio PES is converted to Audio ES, and Subtitle PES is converted to Subtitle ES. Decode.

  The decode processing unit 14 decodes the video data, audio data, and subtitle data input from the recording device 26. Further, the decode processing unit 14 has a function of decoding video data, audio data, and subtitle data input from the external device 30.

  The superimposition processing unit 15 performs plane management of video data from the decoding processing unit 14 and window drawing based on data broadcasting or GUI (Graphical User Interface) information transferred via the bus 20 and superimposes the video data on the image data. And send it to the video processing unit 16.

  The video processing unit 16 converts the format (number of pixels, frame frequency, scanning method) that can be displayed on the display device 17 or arbitrarily adjusts the display color, and outputs the video to the display device 17 to display the video on the screen. 7 is displayed.

  The audio processing unit 18 converts the digital audio data transmitted from the decoding processing unit 14 into an analog audio signal that can be reproduced by the speaker 19 or the earphone (not shown), and then outputs the analog audio signal to the speaker 19 or the earphone to output the audio. Let it play. The display device 17 and the speaker 19 may be outside the recording / reproducing device 1. Further, it may be stored in a main body different from the recording / reproducing apparatus 1.

  In the recording / reproducing apparatus 1, all the operations including the above-described reception operation are comprehensively controlled by the control unit 21. The control unit 21 is equipped with an MPU (Micro Processing Unit) 22 and controls each component connected via the bus 20.

  A RAM (Random Access Memory) 23 is a read / write memory that stores various data necessary for data processing of the control unit 21, and operates as a buffer memory that stores video data, image frame information, and the like. A ROM (Read Only Memory) 24 is a read-only memory and stores a control program executed by the MPU 22.

  The flash memory 25 is a non-volatile memory that can be rewritten and does not lose data even when the power is turned off. The flash memory 25 has a function of storing various setting values related to the function and operation of the recording / reproducing apparatus 1 set by the user.

  The recording device 26 is a recording (recording) means including an HDD (Hard Disk Drive), an SSD (Solid State Drive), an ODD (Optical Disc Drive), or the like. The recording device 26 is equipped with an encoder and a decoder for recording / reproducing information. Through the encoder and decoder, the MPEG2-TS data is modulated into a format suitable for the recording / reproducing mode of the recording device 26, an HDD, It is recorded on SSD or ODD, demodulated and output as reproduction data. This reproduced data is decoded by the decoding processing unit 14. A plurality of recording devices 26 may be provided.

  The operation reception unit 27 receives an operation signal transmitted from the operation device 28 and transfers the operation signal to the control unit 21. The operation device 28 is, for example, a remote controller (remote controller) 8 using a wireless communication such as infrared or Bluetooth (registered trademark), a wired or wireless keyboard, and the like, and transmits an operation signal. The operation receiving unit 27 receives an operation signal from the remote controller 8 or the keyboard.

  The external interface 29 includes USB (Universal Serial Bus), IEEE 1394 (Institute of Electrical and Electronic Engineers 1394), eSATA (external Serial ATA (AT Attachment)), SD (Secure Digital) (registered trademark) memory card, and Memory Stick (registered trademark). ) Or HDMI (High Definition Multimedia Interface) (registered trademark), USB memory, USB external device, SD memory card, memory stick, HDD, SSD, CD, DVD, Blu-ray (registered trademark) recording and playback An external device 30 including drives such as a machine is connected. The external device terminal 29a is a terminal to which the external device 30 is connected.

  The recording / reproducing apparatus 1 can record a broadcast program on the external apparatus 30 via the external interface 29. The user can select either the recording device 26 or the external device 30 for recording. The recording / reproducing apparatus 1 can reproduce video or audio information recorded in the external device 30.

  The recording / reproducing apparatus 1 is connected to a network 32 such as the Internet via a network transmission / reception unit 31. Thereby, the recording / reproducing apparatus 1 can perform information transmission via the network transmission / reception unit 31 with a device such as the server 33 connected to the network 32. For example, it is possible to receive video content from a server that complies with DLNA (Digital Living Network Alliance) guidelines. The network terminal 31a is a terminal to which the network 35 is connected. The connection between the network transmitting / receiving unit 31 and the network 32 is not limited to a wired connection, and may be a wireless connection such as a wireless LAN using an IEEE802.11 series communication method.

  FIG. 3 is an external view of the remote controller 8 according to the embodiment. The remote controller 8 sends an operation signal to the operation receiving unit 27 of the recording / reproducing apparatus 1 using wireless communication such as infrared or Bluetooth (registered trademark). The power button 40 turns the recording / reproducing apparatus 1 on or off. Specifically, the button is used to set the recording / reproducing apparatus 1 from the standby state to the operation state, or from the operation state to the standby state. The broadcast wave selection button 41 is an operation button for selecting a broadcast type.

  The channel selection button 42 is a button numbered from 1 to 12 for directly selecting a broadcast channel number. The channel advance button 43 is a button for selecting a channel number by forward or reverse feed, and is used when a channel is selected similarly to the channel select button 42. The volume adjustment button 44 is a button for adjusting the volume of the speaker when viewing a program.

  The cursor button 45 is a button for moving the cursor in various information windows on the GUI (Graphical User Interface) screen displayed on the screen 7 and moving selection buttons for various items. The cursor button 45 is also called a cross button or a direction instruction button. The left cursor button 45a is a button used to move the cursor to the left. The right cursor button 45b, the upward cursor button 45c, and the downward cursor button 45d are used to move the cursor in the right direction, the upward direction, and the downward direction, respectively. The decision button 46 is used when executing a button on the screen or a position moved by the cursor buttons 45a to 45d.

  The program guide button 47 is a dedicated operation button operated when displaying the program guide on the screen 7. The recording list button 48 is a button operated when displaying the recording list on the screen 7. The recording list is a list of recorded programs to be displayed when the user selects a recorded program. The return button 49 is a button used when returning to the previous operation stage screen. The end button 50 is a button that is operated to end a series of operations.

  The auxiliary cursor button 51 is an operation button mainly used for switching the GUI screen displayed on the screen 7 such as switching of a program guide page and various lists displayed on the screen 7 and switching of a plurality of displayed tabs. It is. The auxiliary cursor button 51a is operated to select or move the left direction, 51b the right direction, 51c the lower direction or the next screen, and 51d the upper direction or the previous screen.

  The four color buttons 52 are arranged in the order of a blue button 52a, a red button 52b, a green button 52c, and a yellow button 52d from the left. This is used when there are items on the screen 7 that are distinguished by color and display of selection by color.

  The recording device operation button 53 is a button for reproducing, stopping, pausing, fast forward reproduction, fast reverse reproduction, skipping, and reverse when reproducing a program recorded in the recording apparatus 26 or the external apparatus 30. The playback button 53a is a button operated when starting playback of a program recorded in the recording device 26. The stop button 53b is a button operated when stopping the reproduction. The pause button 53c is a button that is operated when playback is temporarily stopped and a still image is displayed. The stop position and the pause position are temporarily recorded in the RAM 23. The fast forward playback button 53d is a button operated when fast forward playback is performed, and the fast reverse playback button 53e is operated when performing fast reverse playback.

  The skip button 53f is a button that is operated when skipping to the beginning of the next (one next) chapter and reproducing. Each press moves to the next chapter. The reverse button 53g is a button operated when returning to the top of the current chapter. If pressed twice in succession, playback starts after returning to the beginning of the previous chapter.

  The caption button 54 is a button operated when displaying a caption on the screen. When a subtitle broadcast program is displayed, the subtitle can be displayed on the screen by pressing this button. Each time you press the button, the display is switched. The caption reading end button 55 is a button operated when the user finishes reading the caption. When this button is pressed, for example, the playback speed changes to high speed playback until the next chapter.

  The menu button 56 is a button to be pressed when displaying various setting menus prepared in the recording / reproducing apparatus 1. The user uses the cursor button 45 to select a target setting item from among the plurality of hierarchically displayed items.

  In FIG. 2, the control unit 21 has functions of a recording control unit 34 and a reproduction control unit 35. This function is an application executed by the MPU 22 of the control unit 21 and is normally stored in the ROM 24 and is read and executed by the MPU 22 when used.

  The recording control unit 34 manages the recording reservation information of the broadcast program set based on the user's request, and performs the recording process of the reserved program and the recording process of the program being viewed. Further, the recordable time of the recording device 26 and the external device 30 is calculated. Further, a recording list is generated.

  FIG. 4 is a block diagram showing the configuration of the playback control unit 35 according to the first embodiment. The reproduction control unit 35 has functions of a caption data acquisition unit 61, a caption data display unit 62, a chapter setting unit 63, and a skip processing unit 64.

  The reproduction control unit 35 reproduces the recorded program selected by the user. When the recording list button 48 is pressed, the reproduction control unit 35 displays the recording list on the screen 7 and reproduces the recorded program selected and determined by the user.

  The caption data acquisition unit 61 has a function of acquiring caption data from caption ES of broadcast data of a broadcast program including captions. Subtitle broadcasting is a service that presents audio content in text on a screen. The user can select ON / OFF of subtitle display. The caption data is display (presentation) control data such as display start time, display position (screen display coordinates), color, character size, font, decoration (flashing, etc.), language selection, vertical writing, horizontal writing, and the like. The caption data acquisition unit 61 temporarily stores the acquired data in the RAM 23.

  The caption data display unit 62 has a function of generating character data from the caption data acquired by the caption data acquisition unit 61 and displaying it on the screen 7. The generated character data is appropriately changed via the superimposition processing unit 15 and the video processing unit 16 and transmitted to the display device 17.

  The chapter setting unit 63 has a function of setting chapter division points for each time when subtitle display is started in a broadcast program based on subtitle data. The chapter setting unit 63 sets chapter division points at the start time of subtitle display for each subtitle displayed in the program. The chapter setting unit 63 does not set a chapter division point by detecting a scene change point of video data or a change point of audio data.

  The skip processing unit 64 has a function of moving from the currently playing chapter to the beginning of the next chapter and playing it when receiving a skip operation instruction during playback of the broadcast program. When the user presses the skip button 53f, the skip processing unit 64 skips to the head of the next chapter (one ahead) of the chapter of the program being played and plays it back.

  When the user finishes reading the subtitles of the displayed chapter, the user skips to the next subtitle display position so that the user can watch the program at his own pace in a short time. When the user finishes reading the subtitles of the displayed chapter, the user can skip to the beginning of the next chapter by pressing the skip button 53f of the remote controller 8. Subtitles are displayed on the screen immediately after skipping or after a short period of time, so it is only necessary to read this subtitle and skip to the next chapter after reading. The video from the scene immediately after pressing the skip button 53f after reading the subtitle to the scene from the next skip position is omitted, and the viewing time can be shortened by this omitted time. There are no subtitles in commercial messages (CMs) or drama theme songs, so you can skip at the discretion of the user.

  FIG. 5 is a state machine diagram of skip processing and reverse processing in the first embodiment. The basic state transition of the recording / reproducing apparatus 1 in this embodiment will be described. When playback and display of video and subtitles are stopped from the initial state, the process proceeds to S11 during stoppage. When the reproduction operation is executed in the stopped S11, the process proceeds to the reproducing S12. In S12 during reproduction, video and subtitles are displayed. When the stop operation is executed or the playback is completed in S12 during playback, the process proceeds to S11 during stop. During stop, S11 stops the reproduction of the video and subtitles. The above playback / stop processing is the same as playback / stop processing of a general recording / playback device.

  When the skip operation is executed in S12 during reproduction, the process proceeds to S13 during skip processing. In skip processing S13, the playback position is advanced to the start position of the next chapter. When the skip processing is completed, the process proceeds to S12 during playback. On the other hand, when a reverse operation is executed during S12 during playback, the process proceeds to S14 during reverse processing. In reverse processing S14, the reproduction position is returned to the start position of the chapter being reproduced. When the reverse process is completed, the process proceeds to S12 during playback.

  The user starts playback and executes a skip operation after reading the subtitles. The skip operation is performed by pressing the skip button 53f on the remote controller. The skip operation advances the playback position to the start position of the next chapter, and resumes playback of video and subtitles. Subtitle display → Skip operation after reading subtitles → Subtitle display → Skip operation after reading subtitles allows the user to view the contents of the program at high speed. Note that other buttons of the remote controller may be assigned instead of the skip button 53f of the remote controller.

  FIG. 6 is a diagram illustrating an example of a section in which subtitles are displayed for video and audio display during program playback. An example is shown in which the ratio of a playback section in which captions are displayed and a playback section in which captions are not displayed is 2: 1.

  FIG. 7 is a diagram showing a state in which a skip operation skips to a chapter where the next subtitle starts. For quick reference, skip to the chapter where the next subtitle is started after reading the subtitle in a short time by skip operation. FIG. 7 shows the case where the program shown in FIG. 6 is skipped after reading the subtitle at the position of ¾ of the subtitle display section (time). The arrow indicates the skipped position. In order to skip reading subtitle A to subtitle B after reading subtitle A at the position of 3/4, the parts indicated by 4, 5, and 6 in the audio / video display are omitted. Furthermore, when skipping from subtitle B to subtitle C, the portions indicated by 10, 11, and 12 in the video / audio display are omitted. In this example, the program can be viewed and viewed at a speed about twice as fast as normal playback.

  FIG. 8 is a diagram showing a state in which an example of a subtitle playback bar is displayed on the screen 7. The subtitle reproduction bar 65 is a time bar that indicates the passage of time of a chapter being reproduced having a shape similar to a bar graph extending in the horizontal direction at the bottom of the screen 7, for example. The subtitle playback bar 65 is displayed overlapping the video of the program being played back. The subtitle playback bar 65 indicates a subtitle display section 66 and a subtitle-free section 67 of the chapter being played. The subtitle display section 66 indicates the time during which the subtitle is displayed, and the non-subtitle section 67 indicates the time from when the subtitle display disappears until this chapter ends.

  The left end of the caption reproduction bar 65 indicates the start position of the chapter being reproduced. The right end indicates the end position of the chapter being played. A locator (cursor) 68 is displayed at the playback position of the chapter being played. The position of the locator 68 indicates the current position, the left side of the locator 68 indicates the past on the time axis, and the right side indicates the future on the time axis. The locator 68 moves in the direction of the right end 67 as the playback time elapses.

  By displaying the subtitle playback bar 65, the user can know how much time is left until the next subtitle, which helps when determining whether or not to perform the skip operation. In addition, the subtitle playback bar 65 displays the subtitle display section and the subtitle-free section, so that the timing at which the subtitle disappears can be known and the subtitle can be read calmly.

  As described above, subtitle data is acquired from the subtitle ES of the broadcast data of the subtitle broadcast program by the subtitle data acquisition unit 61, and the subtitle data is started to be displayed in the broadcast program based on the subtitle data by the chapter setting unit 63. A chapter division point is set, character data is generated by the caption data display unit 62 and displayed on the screen 7. When a skip operation instruction is received from the user, the skip processing unit 64 starts the next chapter from the chapter being reproduced. By moving to and playing, the user can quickly view the recorded program. Efficient playback can be realized for the user.

(Second Embodiment)
FIG. 9 is a block diagram showing the configuration of the recording / reproducing apparatus 70 according to the second embodiment. FIG. 10 is a block diagram showing the configuration of the playback control unit 72 according to the second embodiment. About each part of this 2nd Embodiment, the same part as each part of 1st Embodiment shown in FIG. 2, FIG. 4 is the same code | symbol. The second embodiment is different from the first embodiment in that the reproduction control unit 35 is replaced with a reproduction control unit 72. The playback control unit 72 has an automatic skip processing unit 73 added thereto.

  The reproduction control unit 72 has functions of a caption data acquisition unit 61, a caption data display unit 62, a chapter setting unit 63, a skip processing unit 64, and an automatic skip processing unit 73. Since each element of the caption data acquisition unit 61, the caption data display unit 62, the chapter setting unit 63, and the skip processing unit 64 is the same as that of the first embodiment, the description thereof is omitted.

  The automatic skip processing unit 73 calculates the ratio of the time required for the user to perform a skip operation with respect to the time during which the subtitle is displayed, and when the time of the ratio elapses in the later chapter, the next chapter is changed to the next chapter. It has a function to automatically move to the top. When the percentage of time during playback is detected in the caption display section, the ratio of the time is calculated by detecting the user's skip operation, and the time with the same ratio as the ratio calculated in the caption display section of the later chapter is played Automatically skip to the next chapter. When calculating this ratio, an average value of ratios in a plurality of chapters may be used. For example, the predetermined number of times may be 3 or 5 times.

  The time for the user to read the subtitle is detected from the time from when the user has finished reading the subtitle until the user presses the skip button 53f immediately after moving to the chapter. For example, when the user presses the skip button 53f in 7.8 seconds when the caption display section (time during which captions are displayed) is 10 seconds, the automatic skip processing unit 73 calculates the ratio as 78%. . Also, for example, if the subtitle display section is 5 seconds and the user presses the skip button 53f in 4 seconds, the ratio is calculated as 80%, the subtitle display section is 8 seconds, and the user is 6.6 seconds. When the skip button 53f is pressed in this way, the ratio is calculated as 83%. The average value of the three ratios is 80.3%. Based on this average value, the automatic skip processing unit 73 sets the time required for the skip operation to 80.3% (9.636 seconds≈9) when the caption display section of the next chapter is 12 seconds. .6 seconds). When the calculated required time has elapsed, the current chapter is automatically moved to the beginning of the next chapter.

  The user can skip the chapter at a speed that matches the speed at which the user reads the subtitles without skipping from the middle. Since the user does not need to operate the remote controller 8, it is efficient.

  FIG. 11 is a state machine diagram of skip processing and reverse processing in the second embodiment. The basic state transition of the recording / reproducing apparatus 70 in this embodiment will be described. The transition from the initial state to S12 during playback is the same as that described in FIG.

  When the skip operation is executed in S12 during reproduction, the process proceeds to S13 during skip processing. In skip processing S13, the playback position is advanced to the start position of the next chapter. When the skip processing is completed, the process proceeds to S12 during playback. On the other hand, when a reverse operation is executed during S12 during playback, the process proceeds to S14 during reverse processing. In reverse processing S14, the reproduction position is returned to the start position of the chapter being reproduced. When the reverse process is completed, the process proceeds to S12 during playback.

  When the automatic skip determination is performed in S12 during reproduction and the reproduction position reaches the automatic skip position, the process proceeds to S13 during skip processing. In skip processing S13, the playback position is advanced to the next caption start position. When the skip processing is completed, the process proceeds to S12 during playback. If the playback position has not reached the automatic skip position, the process returns to S12 during playback and continues playback. The automatic skip position is calculated from the timing of the user's skip operation executed in the past (what percentage of the subtitle display section is skipped during playback).

  The automatic skip position may be calculated from the relationship between the number of subtitle characters and the time required for the user's skip operation. Calculate the ratio between the time required from the user's skip operation to the next skip operation and the estimated time based on the number of subtitles, and calculate the time required for the skip operation from the subtitle order of the displayed chapter based on this ratio. When the required time has elapsed, it may be automatically moved from the displayed chapter to the beginning of the next chapter. When there are many subtitle orders, it takes time to read the subtitles, so the automatic skip position is set later. Conversely, when the number of subtitle characters is small, it takes less time to read the subtitles, so the automatic skip position. Will be set earlier.

  The time for the user to read the subtitle is detected from the time from immediately after moving to the chapter until the user finishes reading the subtitle and presses the skip button 53f. Assume the time to finish reading subtitles from the number of subtitle characters in the chapter. For example, it is assumed that the estimated time for reading 30 characters is 3 seconds, 5 characters for 50 characters, and 10 seconds for 100 characters. If the time required for the user to read the 30-character subtitle is 2.5 seconds, for example, the ratio to the above-mentioned estimated time is 83.3%. If the time required to read a 50-character subtitle is, for example, 4 seconds (80%), and the time required to read a 100-character subtitle is, for example, 7.8 seconds (78%), When the average value is calculated, it is 80.4%. Based on this average value, the automatic skip processing unit 73 determines that the time required for the skip operation is 80.4% of the estimated time (5 seconds) when the number of subtitle characters of the next chapter is 50 characters ( 4.02 seconds≈4 seconds). When the calculated required time has elapsed, the current chapter is automatically moved to the beginning of the next chapter. The number (number of times) of chapters for calculating the average value may be determined as appropriate. For example, the predetermined number of times may be 3 or 5 times.

  The user starts playback and executes a skip operation after reading the subtitles. The skip operation advances the playback position to the start position of the next chapter, and resumes playback of video and subtitles. Subtitle display → Skip operation after reading subtitles → Subtitle display → Skip operation after reading subtitles allows the user to view the contents of the program at high speed. If the skip operation is executed once or a predetermined number of times, the speed of reading the subtitles of the user can be estimated from the timing of these skip operations, and this is calculated, and then the user has finished reading the subtitles. When the playback position reaches the position to be played, automatic skip is executed. Thereby, it is possible to view the program at a high speed (according to the speed at which the user reads subtitles) without skipping operation from the middle.

  FIG. 12 is a diagram illustrating a state in which a skip operation skips to a chapter where the next subtitle starts. For quick reference, skip to the chapter where the next subtitle is started after reading the subtitle in a short time by skip operation. FIG. 12 shows the case where the program shown in FIG. 6 is skipped after reading the subtitle at the position of 3/4 of the subtitle display section (time). The arrow indicates the temporal position where the skip operation was performed. In order to skip reading subtitle A to subtitle B after reading subtitle A at the position of 3/4, the parts indicated by 4, 5, and 6 in the audio / video display are omitted. Furthermore, when skipping from subtitle B to subtitle C, the portions indicated by 10, 11, and 12 in the video / audio display are omitted.

  FIG. 12 shows that the automatic skip processing unit 73 from subtitle D executes automatic skip. For subtitle A, subtitle B, and subtitle C, the ratio of the time required until the user performs a skip operation is obtained, and the average of the three ratios is obtained, and automatic skip processing is executed after subtitle D. As described above, the user can quickly view the recorded program. Efficient playback can be realized for the user.

(Third embodiment)
FIG. 13 is a block diagram showing a configuration of a recording / reproducing apparatus 80 according to the third embodiment. FIG. 14 is a block diagram showing a configuration of the playback control unit 82 according to the third embodiment. About each part of this 3rd Embodiment, the same part as each part of 1st Embodiment shown in FIG. 2, FIG. 4 is the same code | symbol. The third embodiment is different from the first embodiment in that the reproduction control unit 35 is replaced with a reproduction control unit 82. The playback control unit 82 includes a high-speed playback unit 83.

  The playback control unit 82 has functions of a caption data acquisition unit 61, a caption data display unit 62, a chapter setting unit 63, and a high-speed playback unit 83. Since each element of the caption data acquisition unit 61, the caption data display unit 62, and the chapter setting unit 63 is the same as that of the first embodiment, description thereof is omitted.

  The high-speed playback unit 83 has a function of increasing the playback speed from the currently displayed chapter to the beginning of the next chapter when the user receives an instruction to finish reading subtitles from the user, and playing from the beginning of the next chapter at a normal speed. . The normal speed is 1 × speed reproduction. The subtitle reading end operation is a transmission of a subtitle reading end operation signal to the recording / reproducing apparatus 80 by pressing the subtitle reading end button 55 of the remote controller 8 to indicate that the subtitle display of the chapter being displayed on the screen 7 has been read. It is.

  When the user finishes reading the subtitles of the displayed chapter, the user should finish reading the subtitles to increase the playback speed to the beginning of the next chapter, and start playback at the normal speed from the beginning of the next chapter. You can watch recorded programs quickly. Since the subtitles are read at high speed from the next chapter to the next chapter, the time between them can be shortened and a quick look can be made. Unlike skipping, since the video after reading the subtitles is not omitted, the entire contents of the program can be grasped.

  FIG. 15 is a state machine diagram of high-speed playback processing and reverse processing in the third embodiment. A basic state transition of the recording / reproducing apparatus 80 in the present embodiment will be described. The transition from the initial state to S12 during playback is the same as that described in FIG.

  When the subtitle reading end operation is executed in S12 during reproduction, the process proceeds to S15 during high-speed reproduction processing. In high-speed playback processing S15, high-speed playback display is performed until the playback position advances to the start position of the next chapter. When the high-speed playback process is completed, the process proceeds to S12 during playback. On the other hand, when a reverse operation is executed during S12 during playback, the process proceeds to S14 during reverse processing. In reverse processing S14, the reproduction position is returned to the start position of the chapter being reproduced. When the reverse process is completed, the process proceeds to S12 during playback.

  The user starts reproduction, and when reading the subtitles is completed, the user performs a subtitle reading end operation. The subtitle reading end operation is executed by pressing the subtitle reading end button 55 on the remote controller. By finishing the subtitle reading operation, the program can be played and displayed at a high speed, and the program can be advanced to the start position of the next chapter. Subtitle display (normal playback) → Subtitle reading end operation after reading subtitles → High speed playback → Subtitle display (normal playback) → Subtitle reading end operation after reading subtitles, users can speed up the contents of the program Can watch.

  FIG. 16 is a diagram showing a state where high-speed playback has been performed up to the chapter where the next subtitle is started by the subtitle reading end operation. FIG. 16 shows a case where the program shown in FIG. 6 has been read in the subtitle display section (time) at about 3/4 of the position, and a subtitle read end operation has been performed. The arrow indicates the time position where the subtitle reading operation was completed. For example, when the subtitle A is read at the position of 3/4 and the subtitle reading operation is finished, the portions indicated by 4, 5 and 6 in the video / audio display are reproduced at high speed. Further, the subtitle B is read at the 3/4 position and the subtitle read operation is performed, so that the portions indicated by 10, 11 and 12 of the video / audio display are reproduced at high speed.

  As described above, subtitle data is acquired from the subtitle ES of the broadcast data of the subtitle broadcast program by the subtitle data acquisition unit 61, and the subtitle data is started to be displayed in the broadcast program based on the subtitle data by the chapter setting unit 63. When the chapter division point is set, character data is generated by the subtitle data display unit 62 and displayed on the screen 7, and when the instruction to finish reading the subtitle is received from the user, the high-speed playback unit 83 determines the next chapter from the displayed chapter. By increasing the playback speed to the beginning of the program and playing it at the normal speed from the beginning of the next chapter, the user can quickly view the recorded program. Efficient playback can be realized for the user.

(Fourth embodiment)
FIG. 17 is a block diagram showing a configuration of a recording / reproducing apparatus 90 according to the fourth embodiment. FIG. 18 is a block diagram showing the configuration of the playback control unit 92 according to the fourth embodiment. About each part of this 4th Embodiment, the same part as each part of 3rd Embodiment shown in FIG. 13, FIG. 14 is the same code | symbol. The fourth embodiment is different from the third embodiment in that the reproduction control unit 82 is replaced with a reproduction control unit 92. The playback control unit 92 includes a high speed playback unit 83 and an automatic high speed playback unit 93.

  The reproduction control unit 92 has functions of a caption data acquisition unit 61, a caption data display unit 62, a chapter setting unit 63, a high speed reproduction unit 83, and an automatic high speed reproduction unit 93. Since each element of the caption data acquisition unit 61, the caption data display unit 62, the chapter setting unit 63, and the high-speed playback unit 83 is the same as that of the third embodiment, the description thereof is omitted.

  The automatic high-speed playback unit 93 calculates the ratio of the time required for the user to finish reading the subtitles with respect to the time during which the subtitles are displayed, and when the time multiplied by the ratio has elapsed in the subsequent chapters, the displayed chapters are displayed. From the beginning of the next chapter to the beginning of the next chapter. When the percentage of time during playback of the caption display section is detected when the user finishes reading the caption, the time ratio is calculated, and the same ratio as the ratio calculated in the subsequent caption display section is played back Automatically plays back to the next chapter at high speed. When calculating this ratio, an average value of ratios in a plurality of chapters may be used. For example, the predetermined number of times may be 3 or 5 times.

  Immediately after moving to the chapter, the user reads the subtitle, detects the time for the user to read the subtitle from the time from reading the subtitle to pressing the subtitle reading end button 55. For example, when the subtitle display section (the time during which the subtitle is displayed) is 10 seconds and the user presses the subtitle reading end button 55 in 7.8 seconds, the automatic high-speed playback unit 93 sets the ratio to 78%. calculate. Also, for example, when the subtitle display section is 5 seconds and the user presses the subtitle reading end button 55 in 4 seconds, the ratio is calculated as 80%, the subtitle display section is 8 seconds, and the user When the subtitle reading end button 55 is pressed in 6 seconds, the ratio is calculated as 83%. The average value of the three ratios is 80.3%. Based on this average value, the automatic high-speed playback unit 93 sets the time required for the skip operation to 80.3% time (9.636 seconds≈9 when the caption display section of the next chapter is 12 seconds. .6 seconds). When the calculated required time has elapsed, the playback speed is automatically increased from the currently displayed chapter to the beginning of the next chapter, and playback is performed from the beginning of the chapter at the normal speed.

  FIG. 19 is a state machine diagram of high-speed playback processing and reverse processing in the fourth embodiment. A basic state transition of the recording / reproducing apparatus 90 in this embodiment will be described. The transition from the initial state to S12 during playback is the same as that described in FIG.

  When the subtitle reading end operation is executed in S12 during reproduction, the process proceeds to S15 during high-speed reproduction processing. In high-speed playback processing S15, high-speed playback display is performed until the playback position advances to the start position of the next chapter. When the high-speed playback process is completed, the process proceeds to S12 during playback. On the other hand, when a reverse operation is executed during S12 during playback, the process proceeds to S14 during reverse processing. In reverse processing S14, the reproduction position is returned to the start position of the chapter being reproduced. When the reverse process is completed, the process proceeds to S12 during playback.

  During playback, an automatic high-speed playback determination is performed in S12. When the playback position reaches the automatic high-speed playback position, the process proceeds to S15 during high-speed playback processing. In high-speed playback processing S15, high-speed playback display is performed until the playback position advances to the start position of the next chapter. When the high-speed playback process is completed, the process proceeds to S12 during playback. If the playback position has not reached the automatic high-speed playback position, the process returns to S12 during playback to continue playback. The automatic high-speed playback position is calculated from the timing of the user's subtitle reading completion operation executed in the past (how many percent of the subtitle display section is played when the subtitle reading end operation is performed).

  The automatic high-speed playback position may be calculated from the relationship between the number of subtitle characters and the time required for the user to finish reading the subtitle. Calculate the ratio between the time required for the user to finish reading the subtitle and the estimated time based on the number of subtitles, and calculate the time required for the subtitle reading end operation from the subtitle order of the chapter being displayed based on this ratio. When the required time elapses, the playback speed may be automatically increased from the currently displayed chapter to the beginning of the next chapter, and the playback may be started at the normal speed from the beginning of the next chapter. When there are many subtitle orders, it takes time to read the subtitles, so the automatic high-speed playback position is set later, and conversely, when the number of subtitle characters is small, it takes less time to read the subtitles. The playback position will be set earlier.

  The user starts reproduction, and when reading the subtitles is completed, the user performs a subtitle reading end operation. Subtitle display (normal playback) → Subtitle reading end operation after reading subtitles → High speed playback → Subtitle display (normal playback) → Subtitle reading end operation after reading subtitles, users can speed up the contents of the program Can watch. When the subtitle reading end operation is executed once or a predetermined number of times, the subtitle reading speed of the user can be estimated from the timing of the subtitle reading end operation, and this is calculated. When the playback position reaches the position where it is estimated that reading has been completed, automatic high-speed playback is executed. Thereby, it is possible to view the program at a high speed (speed that matches the speed at which the user reads the subtitle) without any subtitle reading operation from the middle.

  FIG. 20 is a diagram showing a state where high-speed playback has been performed up to the chapter where the next subtitle is started by the subtitle reading end operation. FIG. 20 shows a case where the program shown in FIG. 6 has been read in subtitles at about 3/4 of the subtitle display section (time) and a subtitle read end operation has been performed. The arrow indicates the time position where the subtitle reading operation was completed.

  FIG. 20 shows that the automatic high-speed playback processing unit 93 performs automatic high-speed playback processing from the subtitle D. For subtitle A, subtitle B, and subtitle C, the ratio of the time required until the user finishes reading the subtitle is obtained, and the average of the three ratios is obtained, and automatic high-speed playback processing is executed after subtitle D. As described above, the user can quickly view the recorded program, and can realize efficient reproduction for the user.

(Fifth embodiment)
FIG. 21 is a block diagram showing a configuration of a recording / reproducing apparatus 100 according to the fifth embodiment. FIG. 22 is a block diagram illustrating a configuration of the reproduction control unit 102 according to the fifth embodiment. About each part of this 5th Embodiment, the same part as each part of 4th Embodiment shown in FIG. 17, FIG. 18 is the same code | symbol. The fifth embodiment differs from the fourth embodiment in that the reproduction control unit 92 is replaced with a reproduction control unit 102. The playback control unit 102 includes a playback speed changing unit 103.

  The playback control unit 102 has functions of a caption data acquisition unit 61, a caption data display unit 62, a chapter setting unit 63, and a playback speed change unit 103. Since each element of the caption data acquisition unit 61, the caption data display unit 62, and the chapter setting unit 63 is the same as that of the fourth embodiment, the description thereof is omitted.

  The playback speed changing unit 103 calculates the ratio of the time required until the user finishes reading the caption with respect to the time during which the caption is displayed, and changes the playback speed of the program based on the ratio after the caption reading finish operation. It has a function. The playback speed changing unit 103 detects the percentage of playback performed in the subtitle display section when the user has finished reading the subtitles, calculates the time ratio, and after the subtitle reading end operation, for example, Multiply the reciprocal by the playback speed to change the playback speed. For example, when the subtitle reading end operation is performed at the position of 3/4 of the subtitle display section, the playback speed is set to 4/3 times speed, and the playback is continued at the playback speed thereafter. When calculating the ratio, an average value of ratios in a plurality of caption display sections may be used. For example, the predetermined number of times may be 3 or 5 times.

  The time for the user to read the subtitle is detected from the time from immediately after the subtitle display until the user reads the subtitle and finishes reading and pressing the subtitle reading end button 55. For example, when the user presses the subtitle reading end button 55 in 5.7 seconds when the subtitle display section (time during which the subtitle is displayed) is 10 seconds, the playback speed changing unit 103 sets the ratio to 57%. calculate. Also, for example, when the subtitle display section is 5 seconds and the user presses the subtitle reading end button 55 in 2.8 seconds, the ratio is calculated as 56%, the subtitle display section is 8 seconds, and the user When the subtitle reading end button 55 is pressed in 4.4 seconds, the ratio is calculated as 55%. The average value of the three ratios is 56%. Based on this average value, the playback speed changing unit 103 multiplies the playback speed by 179%, which is the inverse of the average value, and then plays back at this playback speed.

  FIG. 23 is a state machine diagram of the playback speed changing process and the reverse process in the fifth embodiment. A basic state transition of the recording / reproducing apparatus 100 in the present embodiment will be described. When playback and display of video and subtitles are stopped from the initial state, the process proceeds to S11 during stoppage. When the reproduction operation is executed during the stop S11, the process proceeds to the reproduction S16. During playback, S16 displays video and subtitles. When the stop operation is executed in S16 during playback or when playback is completed, the process proceeds to S11 during stop. During stop, S11 stops the reproduction of the video and subtitles. The above playback / stop processing is the same as playback / stop processing of a general recording / playback device.

  When a skip operation is executed in S16 during reproduction, the process proceeds to S13 during skip processing. In skip processing S13, the playback position is advanced to the start position of the next chapter. When the skip processing is completed, the process proceeds to S16 during playback. On the other hand, if a reverse operation is executed during S16 during playback, the process proceeds to S14 during reverse processing. In reverse processing S14, the reproduction position is returned to the start position of the chapter being reproduced. When the reverse process is completed, the process proceeds to S16 during playback.

  During playback S16, a subtitle reading end operation from the user is accepted. The ratio of the time required until the user finishes reading the subtitles with respect to the time when the subtitles are displayed by one or more subtitle reading finish operations is calculated. When transitioning to S16 during playback, the playback speed of the program is changed based on the ratio. Therefore, the playback speed can be changed according to the speed at which the user reads the subtitles.

  The ratio of the time required until the user finishes reading the subtitles with respect to the time during which the subtitles are displayed may be calculated from the relationship between the number of subtitle characters and the time required for the user to finish reading the subtitles. It is also possible to obtain a ratio between the time required for the user to finish reading subtitles and the estimated time based on the number of subtitle characters, and change the playback speed based on this ratio.

  The user starts reproduction, and when reading the subtitles is completed, the user performs a subtitle reading end operation. Subtitle display (normal playback) → Subtitle reading finish operation after reading subtitles (may be repeated multiple times to obtain the average value) → By changing the playback speed (high speed playback), users can speed up the contents of the program Can watch. When the subtitle reading end operation is executed once or a predetermined number of times, the user's subtitle reading speed can be estimated from the timing of the subtitle reading end operation. The playback speed of the program is changed based on When the user reads the subtitles in a short time, the playback speed is changed to high speed playback. Thereby, it is possible to view the program at a high speed (speed that matches the speed at which the user reads the subtitle) without any subtitle reading operation from the middle.

  FIG. 24 is a diagram showing a state in which the playback speed is changed by calculating the reading speed of the user from the closed caption reading operation. FIG. 24 shows a case where the program shown in FIG. 6 has been read at approximately 3/4 of the caption display section (time) and the caption reading finish operation has been performed. The arrow indicates the time position where the subtitle reading operation was completed.

  FIG. 24 shows that the playback speed changing unit 103 changes the playback speed of the program to high-speed playback after the subtitle reading end operation immediately after the subtitle C subtitle reading end operation. For the subtitle A, subtitle B, and subtitle C, the ratio of the time required until the user finishes reading the subtitle is obtained, the average value of the three times is obtained, and the high speed playback process is executed after the subtitle C is read. Has been. As described above, the playback speed can be changed according to the speed at which the user reads the subtitles, so that the recorded program can be viewed quickly. Efficient playback can be realized for the user.

(Sixth embodiment)
FIG. 25 is a block diagram showing a configuration of a recording / reproducing device 110 according to the sixth embodiment. FIG. 26 is a block diagram showing a configuration of the playback control unit 112 according to the sixth embodiment. About each part of this 6th Embodiment, the same part as each part of 1st Embodiment shown in FIG. 2, FIG. 4 is the same code | symbol. The sixth embodiment is different from the first embodiment in that the reproduction control unit 35 is replaced with a reproduction control unit 112. The playback control unit 112 includes a subtitle database generation unit 113.

  The reproduction control unit 112 has functions of a caption data acquisition unit 61, a caption data display unit 62, a chapter setting unit 63, and a caption database generation unit 113. Since each element of the caption data acquisition unit 61, the caption data display unit 62, and the chapter setting unit 63 is the same as that of the first embodiment, description thereof is omitted.

  The caption database generation unit 113 has a function of generating a caption database for each chapter at the time of recording broadcast data or after recording and storing the caption database in a recording device or a flash memory. The subtitle database is subtitle text information, display position information, display start time information, and the like associated with each chapter in which the subtitle is displayed, and is stored in the recording device or the flash memory.

  Subtitles need to be displayed immediately after the skip operation by the user or the skip processing in automatic skip processing. Normally, when subtitles are displayed on the screen, the subtitle ES is analyzed after decoding by subtitle ES. There is a need. If the decoding process takes time depending on the performance of the decoding processing apparatus, there is a possibility that the caption cannot be displayed immediately after the chapter is moved by skipping. In such a case, by preparing a subtitle database, subtitles can be displayed even before decoding, so that subtitles can be displayed immediately after skipping.

(Seventh embodiment)
FIG. 27 is a block diagram showing the configuration of the recording / reproducing apparatus 120 according to the seventh embodiment. FIG. 28 is a block diagram illustrating a configuration of the playback control unit 122 according to the seventh embodiment. About each part of this 7th Embodiment, the same part as each part of 1st Embodiment shown in FIG. 2, FIG. 4 is the same code | symbol. The seventh embodiment is different from the first embodiment in that the reproduction control unit 35 is replaced with a reproduction control unit 122. The reproduction control unit 122 includes a character image obtaining unit 123.

  The reproduction control unit 122 has functions of a caption data acquisition unit 61, a caption data display unit 62, a skip processing unit 64, a character image acquisition unit 123, and a second chapter setting unit 124. Since each element of the caption data acquisition unit 61, the caption data display unit 62, and the skip processing unit 64 is the same as that of the first embodiment, description thereof is omitted.

  The character image acquisition unit 123 has a function of acquiring the character image as character data when the character image is displayed in the display image. The character image displayed in the image is a character image different from the subtitle character by the subtitle data of the subtitle ES, for example, a telop character displayed on the screen 7, a letter, or a character image on a document. The character image acquisition unit 123 acquires these character images as character data using known image analysis means and character recognition means. The character image acquisition unit 123 temporarily stores the character data acquired together with the time information when the character data is displayed on the screen in the RAM 23.

  The second chapter setting unit 124 sets chapter division points for each time when subtitle display is started in a broadcast program based on subtitle data, and starts displaying a character image in the broadcast program based on character data. It has a function to set chapter division points every time. The second chapter setting unit 124 sets the chapter division point at the subtitle display start time for each subtitle displayed in the program, and displays the telop character, the letter, or the character image on the document on the screen 7. Set chapter division points in. The second chapter setting unit 124 does not set a chapter division point by detecting a scene change point of video data or a change point of audio data.

  By performing image analysis and character recognition, not only subtitles based on subtitle data, but also subtitles in images and characters in images such as telops and letters up can be processed in the same way as subtitles. it can. By doing so, it is possible to prevent missing important character information displayed on the screen 7.

  When the user finishes reading the caption of the displayed chapter, or the text image on the telop character, letter or document, the user presses the skip button 53f of the remote controller 8 to skip to the beginning of the next chapter. Can watch programs at their own pace in a short time. Efficient playback can be realized for the user.

(Eighth embodiment)
FIG. 29 is a block diagram showing a configuration of a recording / reproducing apparatus 130 according to the eighth embodiment. FIG. 30 is a block diagram showing the configuration of the playback control unit 132 according to the eighth embodiment. About each part of this 8th Embodiment, the same part as each part of 1st Embodiment shown in FIG. 2, FIG. 4 is the same code | symbol. The eighth embodiment is different from the first embodiment in that the reproduction control unit 35 is replaced with a reproduction control unit 132. The reproduction control unit 132 includes a character data generation unit 133, a third chapter setting unit 134, and a character data display unit 135.

  The reproduction control unit 132 has functions of a caption data acquisition unit 61, a caption data display unit 62, a skip processing unit 64, a character data generation unit 133, a third chapter setting unit 134, and a character data display unit 135. Since each element of the caption data acquisition unit 61, the caption data display unit 62, and the skip processing unit 64 is the same as that of the first embodiment, description thereof is omitted.

  The character data generation unit 133 has a function of acquiring audio data from the audio ES of the broadcast data at the time of recording or after recording the broadcast data, and generating character data from the audio data. The character data generation unit 133 acquires audio data decoded from the audio ES of the broadcast data, and generates character data from the audio data using a known audio conversion unit. The generated character data is temporarily stored in the RAM 23 together with time information for reproducing the voice data.

  The third chapter setting unit 134 has a function of setting a chapter division point for each time at which audio reproduction is started in a broadcast program based on audio data. The voice in this case is a voice when character data is generated by the character data generation unit 133. Instrumental music called background sound or instrumental is not a chapter division point. The third chapter setting unit 134 sets the chapter division point at the start time of the audio reproduced in the program. Further, the third chapter setting unit 134 does not set a division point at the scene change point of the video data.

  The character data display unit 135 has a function of displaying character data generated from voice data for each chapter as characters on the screen. The character data display unit 135 transmits the character data generated by the character data generation unit 133 to the superimposition processing unit 15. The transmitted character data is displayed on the screen 7 of the display device 17 via the video processing unit 16. The character data display unit 135 is displayed on the screen 7 at the same time as or immediately after the chapter start time.

  Even for a program in which caption data is not included in the broadcast data of the broadcast program, by displaying a character image such as a caption on the screen 7, it is possible to quickly view the program by quickly reading the characters. Efficient playback can be realized for the user.

  Note that the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Recording / reproducing apparatus 7 Screen 8 Remote control 14 Decoding process part 15 Superimposition process part 16 Image | video process part 17 Display apparatus 21 Control part 22 MPU
23 RAM
24 ROM
25 Flash memory 26 Recording device 27 Operation receiving unit 28 Operating device 29 External interface 30 External device 31 Network transmission / reception unit 32 Network 33 Server 34 Recording control unit 35 Playback control units 45a, 45b, 45c, 45d Cursor button 46 Determination button 48 Time shift Button 51a, 51b, 51c, 51d Auxiliary cursor button 52a, 52b, 52c, 52d Color button 53 Recording device operation button 53a Playback button, 53f Skip button, 53g Reverse button 61 Subtitle data acquisition unit 62 Subtitle data display unit 63 Chapter setting unit 64 Skip processing unit 65 Subtitle playback bar 66 Subtitle display section 67 No subtitle section 65 Past program table display unit 70 Recording / playback device 72 Playback control unit 73 Automatic skip processing unit 80 Recording / playback device 82 Playback control 83 High-speed playback section 90 Recording / playback apparatus 92 Playback control section 93 Automatic high-speed playback section 100 Recording / playback apparatus 102 Playback control section 103 Playback speed changing section 110 Recording / playback apparatus 112 Playback control section 113 Subtitle database generation section 120 Recording / playback apparatus 122 Playback control Unit 123 character image acquisition unit 124 second chapter setting unit 130 recording / playback device 132 playback control unit 133 character data generation unit 134 third chapter setting unit 135 character data display unit

Claims (10)

A recording device for recording broadcast data of a broadcast program;
Subtitle data acquisition unit for acquiring subtitle data from the broadcast data;
A chapter setting unit for setting a chapter division point for each time at which subtitle display is started in the broadcast program based on the subtitle data;
When a skip operation instruction is received during playback of the broadcast program, a skip processing unit that moves from the currently playing chapter to the beginning of the next chapter and plays back,
A recording / reproducing apparatus. The ratio of the time required for the user to perform a skip operation with respect to the time during which the subtitle is displayed is calculated, and when the time when the subtitle is displayed in a later chapter is multiplied by the ratio, the subsequent chapter starts. An automatic skip processor that automatically moves to the beginning of the next chapter;
The recording / reproducing apparatus according to claim 1, comprising: A recording device for recording broadcast data of a broadcast program;
Subtitle data acquisition unit for acquiring subtitle data from the broadcast data;
A chapter setting unit for setting a chapter division point for each time at which subtitle display is started in the broadcast program based on the subtitle data;
A high-speed playback unit that, upon receiving an instruction to finish reading subtitles during playback of the broadcast program, increases the playback speed from the displayed chapter to the beginning of the next chapter and plays back from the beginning of the next chapter at a normal speed; ,
A recording / reproducing apparatus. Calculate the ratio of the time required for the user to finish reading the subtitles with respect to the time when the subtitles are displayed, and after the time when the subtitles are displayed in the later chapters are multiplied by the ratio, An automatic high-speed playback unit that automatically increases the playback speed from the chapter to the beginning of the next chapter and plays back at the normal speed from the beginning of the next chapter;
The recording / reproducing apparatus according to claim 3, comprising: A recording device for recording broadcast data of a broadcast program;
Subtitle data acquisition unit for acquiring subtitle data from the broadcast data;
A subtitle display unit that displays subtitles on a screen in the broadcast program based on the subtitle data;
A playback speed changing unit that calculates a ratio of a time required until a user finishes reading a subtitle with respect to a time during which the subtitle is displayed, and changes a playback speed of the program based on the ratio after the subtitle reading finish operation;
A recording / reproducing apparatus.   The recording / reproducing apparatus according to claim 5, wherein the reproduction speed changing unit changes the reproduction speed by multiplying the reproduction speed by a reciprocal of the ratio. A recording device for recording broadcast data of a broadcast program;
Subtitle data acquisition unit for acquiring subtitle data from the broadcast data;
A chapter setting unit for setting a chapter division point for each time at which subtitle display is started in the broadcast program based on the subtitle data;
A caption database generation unit that generates a caption database for each chapter during or after recording the broadcast data, and stores the caption database in the recording device or flash memory;
A recording / reproducing apparatus. A recording device for recording broadcast data of a broadcast program;
Subtitle data acquisition unit for acquiring subtitle data from the broadcast data;
A character image acquisition unit that acquires the character image as character data when a character image is displayed in the image from the broadcast data;
A chapter division point is set for each time at which subtitle display is started in the broadcast program based on the subtitle data, and at each time the character image display is started in the broadcast program based on the character data. A second chapter setting section for setting chapter division points;
A recording / reproducing apparatus. A recording device for recording broadcast data of a broadcast program;
A character data generating unit for acquiring voice data from the broadcast data at the time of recording or after recording the broadcast data, and generating character data from the sound data;
A third chapter setting unit for setting a chapter division point for each time when audio output is started in the broadcast program based on the audio data;
A character data display unit for displaying the character data generated from the voice data for each chapter on a screen;
A recording / reproducing apparatus. Record the broadcast data of the broadcast program on the recording device,
Subtitle data is acquired from the broadcast data,
Based on the caption data, set the chapter division point for each time the caption display starts in the broadcast program,
Display the caption data on the screen,
A recording / playback method in which when a skip operation instruction is received, playback is performed by moving from the chapter being played back to the beginning of the next chapter.

Images