JP2013062623A - Program recording and reproducing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a program recording and reproducing apparatus which, when reproducing a program included in a continuous content including plural programs after stopping the reproduction of the content, reproduces the program from the stopping position of reproduction.SOLUTION: According to this embodiment, there are provided a reception unit, recording means, reproduction means, and management means. The reception unit receives a broadcast stream transmitted from a broadcast station. The recording means corresponds to the broadcast stream and records, in a recording medium, one piece of broadcast data including plural pieces of program data. The reproduction means reproduces designated piece of program data from the one piece of broadcast data. The management means manages a reproduction restart position where the reproduction means starts the reproduction of a previous program which has been partially reproduced by the reproduction means. The management means manages the reproduction position of each piece of the program data.

Description

  Embodiments described herein relate generally to a program recording / reproducing apparatus for recording / reproducing a broadcast program.

  Currently, a program recording apparatus capable of recording all programs broadcast on multiple days from multiple channels is on the market.

  As a user interface for selecting a program to be viewed from among recorded programs, a past program guide having the same form as an electronic program guide is provided. The user views the recorded program by selecting the program from the past program table.

  By the way, in the current program recording apparatus, when reproduction is resumed by selecting a program again after stopping the reproduction of one continuous content including a plurality of programs, the program recording apparatus starts from the top of the selected program. ing.

JP 2005-323057 A

  In the case of reproducing a program included in the content after stopping the reproduction of one continuous content including a plurality of programs, it has been desired that the program can be reproduced from the reproduction stop position.

  An object of the present invention is to record and reproduce a program that can reproduce a program from the reproduction stop position when reproducing a program included in the content after the reproduction of one continuous content including a plurality of programs is stopped. To provide an apparatus.

  According to the embodiment, the apparatus includes a receiving unit, a recording unit, a reproducing unit, and a managing unit. The receiving unit receives a broadcast stream transmitted from a broadcast station. The recording means records one broadcast data including a plurality of program data on a recording medium corresponding to the broadcast stream. The reproduction means reproduces program data designated from the one broadcast data. The management means manages the playback restart position when the past program is played back by the playback means after a part of the past program is played back by the playback means. The management means manages the reproduction position of each of the plurality of program data.

It is a block diagram which shows an example of the system configuration | structure of the program recording apparatus of embodiment. It is a schematic diagram which shows an example of the system of remultiplexing. It is a schematic diagram which shows an example of a data structure of a program database part. It is a schematic diagram which shows an example of a data structure of metadata. It is a front view which shows an example of a remote controller. It is a figure which shows an example of a past program table. It is a figure which shows the example of the resume position after the reproduction | regeneration stop of one stream (contents) containing a some program. It is an example of the resume position when the playback position is changed by special playback during playback of one stream including a plurality of past programs. It is a figure which shows the resume position of the past program A when the part corresponding to the resume position of the past program A is deleted automatically. It is a figure which shows the example in the case of reproducing | regenerating a several past program continuously, when the resume position is managed for every past program contained in one stream. It is a figure which shows the setting screen for setting any mode of the continuous reproduction mode 1 and the continuous reproduction mode 2. FIG. It is a flowchart which shows the procedure of the process which sets a reproduction | regeneration resume position. It is a flowchart which shows reproduction | regeneration operation | movement at the time of continuous reproduction | regeneration of one stream.

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

  This embodiment is an example in which a digital recorder is applied as a program recording apparatus.

  FIG. 1 is a block diagram illustrating a configuration of a digital recorder 101 according to an embodiment. The digital recorder 101 according to the present embodiment has four tuner modules that are receiving units for receiving scrambled digital broadcast signals (two are tuners 102A and 102B for receiving terrestrial digital broadcasts, etc. The two units will be described by taking BS / CS digital broadcast receiving tuners 102C, 102D, etc.) as an example.

  Broadcast program signals received by the first tuner 102A, the second tuner 102B, the third tuner 102C, and the fourth tuner 102D are input to the TS re-multiplexing unit 141 that functions as a re-multiplexing unit. The TS (Transport Stream) of the channel (CH) is remultiplexed into one TS. As shown in FIG. 2, as the re-multiplexing method, there is a method of re-multiplexing at 5 times speed in the case of 4CH input, and adding, for example, time stamp information for each packet as a flag. The signal remultiplexed by the TS remultiplexing unit 141 is sent to the TS demultiplexing unit 103.

  The TS separation unit 103 functions as a separation unit, and describes an ECM (Entitlement Control Message) that is encrypted information from a broadcast program signal, and event information such as a program name, performer, and start time. Is separated from the EIT (Event Information Table).

  The ECM separated by the TS separation unit 103 is transferred to the CAS control unit 107. The CAS control unit 107 is a broadcaster stored in a CAS module (a CAS card in the form of an IC card: hereinafter referred to as a CAS card as appropriate) 108 installed in a card slot (card interface I / F) 107A. The encryption of the ECM is decrypted using the work key (Kw) set for each time, and the viewability is determined by comparing the attribute information related to the program in the ECM with the contract information stored in the CAS card 108. . The CAS control unit 107 decrypts the scramble key (Ks) and outputs it to the descrambler unit 104 when viewing is possible. The encryption keys Ks and Kw are different for each broadcaster, but are common to all receivers.

  On the other hand, the EIT separated by the TS separation unit 103 is input to the program database unit 113. The program database unit 113 creates a database for creating a program guide using EIT. FIG. 3 is a schematic diagram showing a data structure of the program database unit 113. As shown in FIG. 3, information such as channel, date, start time, end time, title, recording status, presence / absence of dubbing, resume position, etc. is tabulated for each program. The resume position is indicated using the position (time) from the start time.

  The descrambler unit 104 sets the scramble key Ks responded from the CAS control unit 107, and inputs the descrambled TS to the recording / reproduction control unit 110.

  The recording / playback control unit 110 performs control to return the remultiplexed TS to the TS for each channel and record it in the recording medium unit 111 such as an HDD, and at the same time, TS that is a broadcast program signal recorded in the recording medium unit 111. Is output to the AV decoding unit 105. That is, the recording / reproduction control unit 110 functions as a recording control unit and a reproduction control unit.

  The recording / playback control unit 110 stores programs recorded by specifying conditions such as time zones and days of the week in a plurality of channels in the recording medium unit 111 as TS files for each channel. When the recording capacity of the recording medium unit 111 reaches the limit, the recording / playback control unit 110 continues recording while sequentially erasing from the oldest recording time. Hereinafter, program data in each TS file in the recording medium unit 111 is referred to as a past program.

  Here, the recording / playback control unit 110 performs physical recording of the recording medium unit 111 as shown in FIG. 4 when recording the broadcast program signal (stream returned to the TS for each CH) on the recording medium unit 111. Metadata in which the recording position (physical address) in the area, time information, and program information are associated is created for each channel and recorded in the recording medium unit 111. In the example shown in FIG. 4, the recording position (physical address) is recorded every 5 seconds. Note that the program information can be acquired from the EIT.

  The recording / reproduction control unit 110 includes a reproduction control unit 110A, a resume position control unit 110B as management means, and the like. When the program being played back by the playback control unit 110A is stopped halfway without being played back to the end, the resume position management unit 110B notifies the program database unit 113 serving as management means of the stop position. The notified program database unit 113 registers the resume position (reproduction resume position). The reproduction control unit 110A performs reproduction based on the resume position at the second reproduction of the past program. Further, when changing the resume position, the resume position control unit 110B notifies the program database unit 113 of the position where the resume position is changed, thereby changing the resume position.

  The recording medium unit 111 is an HDD, a disk drive, or an SD (registered trademark) card reader / writer, and records a TS that is a broadcast program signal from the recording / playback control unit 110. The recording medium unit 111 does not need to be built in the digital recorder 101, and may be a recording medium such as an HDD connected via a USB or a LAN.

  The AV decoding unit 105 receives a broadcast program signal of each channel (stream returned to the TS for each CH) received by each tuner 102A, 102B, 102C, 102D or a broadcast program signal reproduced by the recording / playback control unit 110 ( The stream returned to the TS for each CH) is decoded into AV information (video and audio).

  AV information decode output (AV output) is output to the display unit 200, which is an external monitor, via the display processing unit 106. Further, the display processing unit 106 has a GUI (Graphical User Interface) function for presenting information to the user by OSD (On Screen Display) or the like. With this GUI function, a program guide, which will be described later, is displayed on the display unit 200.

  The program guide processing unit 115 receives the EIT of the program recorded in the recording medium unit 111 and the EIT of the program to be broadcast in the future from the program database unit 113, so that the program guide creation process and the program guide are displayed on the display unit 200. A process for creating data to be displayed on the screen is executed.

  The input processing unit 114 receives various inputs from the user. For example, the input processing unit 114 accepts input from the user such as setting of automatic recording and designation of a reproduction program on the program guide. The input processing unit 114 may accept user input from a unit corresponding to a fixed operation panel (not shown) attached to the digital recorder 101, or from a remote controller 300 separated from the digital recorder 101. It may accept user input.

  FIG. 5 shows the external appearance of the remote controller 300. The remote controller 300 mainly includes a cursor key 300A, an enter key 300B, a time shift key 300C, a stop key 300D, a fast forward key 300E, a fast reverse key 300F, a frame return key 300G, a first skip key 300H, a previous skip key 300I, and the like. Is provided.

  The cursor key 300A is provided for transitioning a designated area (focus) in a past program table or a date / time designation jump table, which will be described later. The determination key 300B is provided for determining the designated area.

  The time shift key 300C is a key for displaying a past program table that displays programs simultaneously recorded by the recording method. By pressing the time shift key 300C, the past program guide processing unit 115 displays the past program guide on the display screen of the display unit 200, and enters a time shift mode in which the program specified from the display screen is played back.

  The stop key 300D is a key for stopping reproduction during normal reproduction or special reproduction. The fast-forward key 300E is a special reproduction key for performing fast-forward reproduction during reproduction. The fast reverse key 300F is a special reproduction key for performing fast reverse reproduction during reproduction. The frame return key G is a special reproduction key for performing reverse reproduction one frame at a time. The first skip key 300H is a key for reproducing from the beginning of the next chapter or the next program at the time of reproduction. The previous skip key 300I is a key for reproducing from the beginning of the previous chapter or the previous program at the time of reproduction.

  An example of a past program table is shown in FIG. The past program guide has a plurality of cells provided with a time axis in the vertical (row) direction and a channel axis in the horizontal (column) direction. The past program guide is a user interface for the user to instruct the reproduction of past programs.

  In the past program table shown in FIG. 6, a program broadcast on the 161 channel from 3:00 pm on December 31, 2010 is selected by the program focus 601. When the user operates the enter key 300B, the reproduction of the program corresponding to the program focus 601 is started. The user can change the selected program by operating the cursor key 300A.

  Since this apparatus manages the resume position (reproduction resume position) for each of a plurality of programs in the stream (content) for each CH recorded in the recording medium unit 111, the first past program is partway through When the first program is reproduced after the second past program is reproduced halfway after the reproduction, the reproduction can be resumed from the position where the reproduction of the first past program is stopped.

  With reference to FIG. 7, an example of the resume position set by the resume position control unit 110B after stopping the reproduction of one stream (content) including a plurality of programs will be described.

First, before playback, the resume position of the past program A is the top of the past program A, and the resume position of the past program B is the top of the past program B.
Next, the case of the reproduction pattern A will be described. The reproduction pattern A is a case where the reproduction is started from the past program A and the reproduction is stopped in the middle of the past program A. In the case of the reproduction pattern A, the resume position of the past program A is a reproduction stop position. The resume position of the past program B does not change.

  Next, the case of the reproduction pattern B will be described. The reproduction pattern B is a case where the reproduction starts from the past program A, the program B is reproduced continuously after the reproduction of the past program A is finished, and the reproduction is stopped in the middle of the past program B. In the case of the reproduction pattern B, the reproduction start position of the past program A is the head of the program A, and the reproduction start position of the past program B is the reproduction stop position.

  Next, the case of the reproduction pattern C will be described. The reproduction pattern C is a case where reproduction starts from the past program A, program B is reproduced continuously after reproduction of the past program A is completed, and reproduction to the end of the past program B is performed. In the case of the reproduction pattern C, the resume position of the past program A is the top of the program A, and the resume position of the past program B is the top of the program B.

  Next, the case of the reproduction pattern D will be described. The reproduction pattern D is a case where reproduction is started from the past program A, and reproduction is stopped after the reproduction of the past program A is finished (program B is not reproduced). In the case of the reproduction pattern D, the resume position of the past program A is the top of the program A, and the resume position of the past program B is the top of the program B.

Next, referring to FIG. 8, there is an example of the resume position set by the resume position control unit 110B when the playback position is changed by special playback during playback of one stream including a plurality of past programs.
First, the case of the special reproduction pattern A will be described. The special reproduction pattern A is a case where the reproduction position is moved to the past program B by operating the fast-forward key 300E during the reproduction of the past program A and performing the fast-forward. In the case of the special reproduction pattern A, the resume position of the past program A is at the head of the past program A.

  Next, the case of the special reproduction pattern B will be described. The special reproduction pattern B is a case where the reproduction position is moved to the past program A by performing the fast rewind by operating the fast reverse key 300F during the reproduction of the past program B. In the case of the special reproduction pattern B, the resume position of the past program B is the program start position of the past program B.

  Next, the case of the special reproduction pattern C will be described. The special playback pattern C is a case where the playback position is moved to the past program A by performing the frame return by operating the frame return key 300G during the playback of the past program B. In the case of the special reproduction pattern C, the resume position of the past program B is the program start position of the past program B.

  Next, the case of the special reproduction pattern D will be described. The special reproduction pattern D is a case where the reproduction position is moved to the program B by performing the first skip by operating the first skip key 300H during the reproduction of the past program A. In the case of the special reproduction pattern D, the resume position of the past program A is the reproduction position when the previous skip operation is performed.

  Next, the case of the special reproduction pattern E will be described. The special reproduction pattern E is a case where the reproduction position is moved to the program start position of the program B by performing the previous skip by operating the previous skip key 300I during the reproduction of the past program B. In the case of the special reproduction pattern E, the resume position of the past program B is the program start position of the program B.

  Next, the case of the special reproduction pattern E ′ will be described. The special reproduction pattern E is a case where the reproduction position is moved to the program start position of the program A by performing the previous skip operation twice during the reproduction of the past program B. In the case of the special reproduction pattern E ′, the resume position of the past program B is the reproduction position when the previous skip operation is performed.

  Next, the resume position of the past program A set by the resume position control unit 110B when the part corresponding to the resume position of the past program A is automatically deleted will be described with reference to FIG. When the capacity of the recording medium becomes full, the oldest recording time is automatically deleted. When the portion corresponding to the resume position of the past program A is automatically deleted, the beginning of the portion of the past program A that has not been deleted becomes the playback start position.

  Next, an example in which a plurality of past programs are continuously played back when the resume position is managed for each past program included in one stream will be described with reference to FIG.

  As shown in FIG. 10, the resume position A is set for the past program A, the resume position C is set for the past program C, and the resume position is not set for the past program B.

  When a plurality of past programs are reproduced continuously, there are two modes of continuous reproduction mode 1 and continuous reproduction mode 2. In the continuous playback mode 1, playback is started from the resume position A of the past program A, and the past program B and past program C are continuously played back. In the continuous playback mode 2, playback is started from the resume position A of the past program A, and the past program B is played back continuously. When playback to the end of the past program B is performed, playback from the resume position C of the past program C is performed.

  The continuous reproduction mode 1 is effective when the past program C has been reproduced halfway, and the contents of viewing the past program C are not remembered. The continuous playback mode 2 is the latest when the past program C has been played to the middle, and is effective when the contents of the past program C are remembered.

  Whether the continuous playback mode 1 or the continuous playback mode 2 is set can be set on the setting screen shown in FIG. The continuous playback mode 2 is set by operating the decision button 1103 after selecting the valid button 1101. By operating the enter button 1103 after selecting the invalid button 1102, the continuous playback mode 1 is set.

  Next, the procedure for setting the playback resume position will be described with reference to the flowchart of FIG.

  First, the resume position control unit 110B sets the program selected on the past program table as the past program N (N = 1) (step S1201). In the following, in the past program table, programs following the past program 1 are sequentially handled as past program 2, past program 3,. The reproduction control unit 110A detects a reproduction start operation for the past program N (step S1202). The reproduction control unit 110A starts reproduction of the past program N (step S1203). The resume position control unit 110B periodically determines whether the reproduction of the past program N has been completed (step S1204). If it is determined that the reproduction of the past program N has been completed (Yes in step S1204), the resume position control unit 110B notifies the program data dating unit 113 to set the reproduction resume position at the beginning of the past program N ( Step S1207). Then, the resume position control unit 110B updates the value of N to a value of N + 1 (step S1208).

  If it is determined in step S1204 that the playback of the past program N has not been completed (No in step S1204), the resume position control unit 110B determines whether a playback stop operation has been detected (step S1205). If it is determined that a playback stop operation has been detected (Yes in step S1205), the resume position control unit 110B notifies the program database unit 113 to set the playback resume position to the playback stop position of the past program N. When it is determined that the reproduction stop operation has not been detected (No in step S1205), the resume position control unit 110B sequentially executes the processes from step S1204.

  The playback operation at the time of continuous playback of one stream will be described with reference to the flowchart of FIG.

  The resume position control unit 110B sets the program selected on the past program table as the past program N (N = 1) (step S1301). In the following, in the past program table, programs following the past program 1 are sequentially handled as past program 2, past program 3,. The reproduction control unit 110A detects a reproduction start operation for the past program N (step S1302). The reproduction control unit 110A determines whether a resume reproduction position is set for the past program N (step S1303). When it is determined that the setting has been made (Yes in step S1303), the reproduction control unit 110A performs reproduction from the resume reproduction position of the past program N (step S1304). When it is determined that the setting has not been made (No in step S1303), the reproduction control unit 110A performs reproduction from the beginning of the past program N (step S1305).

  The resume position control unit 110B periodically determines whether or not the reproduction of the past program N has been completed (step S1306). When it is determined that the reproduction of the past program N has been completed (Yes in step S1306), the resume position control unit 110B updates the value of N to a value of N + 1 (step S1307). In addition, the resume position control unit 110B sets the playback resume position at the beginning of the past program N. The reproduction control unit 110A determines whether the resume position of the past program N is invalid, that is, the continuous reproduction mode 1 (step S1308). If it is determined that the continuous playback mode 1 is set (Yes in step S1308), the processing from step S1305 is sequentially executed.

  If it is determined in step S1306 that the reproduction of the past program N has not been completed (No in step S1306), the resume position control unit 110B determines whether a reproduction stop operation has been detected (step S1309). If it is determined that the playback stop operation has been detected (Yes in step S1309), the resume position control unit 110B notifies the program database unit 113 to set the playback resume position to the playback stop position of the past program N (step S1309). S1310).

  In this apparatus, when a resume program that has been played back halfway is replayed by storing resume positions in the program database 113 for each of a plurality of streams included in one stream set by the resume position control unit 110B. It is possible to omit the operation of “fast-forwarding the already viewed part”, and the operability is improved.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 101 ... Digital recorder (recording / reproducing apparatus), 102A, 102B, 102C, 102D ... Tuner, 110 ... Recording / reproduction control part, 110A ... Reproduction control part, 110B ... Resume position control part (management means), 111 ... Recording medium part, 113: Program database section (management means).

Claims (6)

A receiving unit for receiving a broadcast stream transmitted from a broadcasting station;
Recording means for recording one broadcast data including a plurality of program data on a recording medium in correspondence with the broadcast stream;
Reproducing means for reproducing program data designated from the one broadcast data;
Management means for managing a reproduction restart position when a past program is reproduced by the reproduction means after a part of the past program is reproduced by the reproduction means, and each reproduction position of the plurality of program data A program recording / reproducing apparatus comprising management means for managing the program. In the case where two or more past programs of the plurality of program data are continuously played back, either valid or invalid for the data indicating the playback resume position of each past program after the first past program. Further comprising setting means for setting;
The program recording / reproducing apparatus according to claim 1. 3. The program recording / reproducing apparatus according to claim 2, wherein when the setting is invalid, the reproducing means reproduces from the head of each past program after the head past program. 3. The program recording / reproducing apparatus according to claim 2, wherein, when set to be valid, the reproducing unit reproduces from a reproduction start position of each past program after the first past program. 4. 2. The program recording according to claim 1, wherein, when one past program of the plurality of past program data is reproduced to the end, the management unit sets the reproduction start position of the one program to the beginning of the one program. Playback device. The recording means automatically deletes at least part of one program data in the plurality of past program data,
The management means changes the playback start position of the one program to the head of the one past program when the deleted portion includes a portion corresponding to the playback restart position of the one past program. The program recording / reproducing apparatus described in 1.

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