JP2010192051A - Television with built-in video recording and reproducing device, and method for reproducing video on television with built-in video recording and reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for reducing power consumption without deteriorating the operability during reproduction due to start-up delay of an HDD, in a television with a built-in video recording and reproducing device including the HDD as a recording medium. <P>SOLUTION: Program information for creating a list of recorded programs is stored in a flash memory instead of the HDD. When none of recording, reproducing, and erasing operations is performed, the HDD is turned off to reduce the power consumption. When a user plays back a recorded program, the program information is read out from the flash memory to display the list. While the user selects a recorded program to be played back, power is supplied to the HDD to start the HDD, thereby preventing the operability from being degraded along with the power reduction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a television with a built-in video recording / playback device and a video playback method for the television with a built-in video recording / playback device, and more particularly, to a television with a built-in video recording / playback device that reduces power without impairing operability. The present invention relates to a video playback method.

Televisions incorporating a video recording / playback apparatus having an HDD (Hard Disk Drive) are widely known. Compared to using a separately configured television and video recording / playback device, which can record and watch broadcast programs and time-shift playback of recorded programs in cooperation with EPG (Electronic Program Guide). The initial setting, wiring, and operation by the user can be simplified. In such a television, when the power is turned on, an operation of reading bitmap data indicating empty sector information from the HDD is performed in order to grasp the usage status of the HDD. After this operation is completed, the HDD can record and reproduce video signals. A user who wants to record or play a broadcast program waits for it while viewing the current broadcast.
Japanese Patent Application Laid-Open No. 2004-228561 discloses that a reproduction operation is performed even while the bitmap data is being read. Japanese Patent Application Laid-Open No. 2004-228561 discloses a technique for shortening the time until recording / reproduction can be performed by providing a flag indicating the validity of the bitmap data.

JP 2008-198312 A JP 2008-217884 A

  When a conventional TV with a built-in video recording / playback apparatus is turned on, the HDD is also activated. For example, if the HDD has a capacity of 250 GB, it takes about 30 seconds to 1 minute to use the above-mentioned free space by bitmap data. Sector information or program information of recorded content is read from the HDD and initialized. After that, even when the recording / reproducing operation was not performed, the energized state was kept as it was. Although power consumption has been taken into consideration, such as reducing the number of revolutions of the disk as compared to the recording / reproducing operation, and consideration has been given to current consumption, it still consumes considerable power, for example, about 2 to 3 W.

  This is because it is necessary to respond immediately when the user requests video reproduction. That is, at the time of the initial setting when the power is turned on, the program information such as the recorded date and time of the recorded content, the broadcasting station, and the thumbnail video is read from the HDD and recorded in the semiconductor memory, so that a list for reproduction can be obtained at any time. It is possible to display the content, and when the content to be reproduced is selected, the reproduction operation can be performed immediately. However, it is desirable to further reduce power consumption from the viewpoint of effective use of energy resources.

  In view of these problems, an object of the present invention is to provide a television with a built-in video recording / playback apparatus and a video playback method for the television with a built-in video recording / playback apparatus, which reduce power without impairing operability.

  In order to achieve the above object, the present invention receives a video broadcast including video content and program information related to the video content, records the video content in a built-in video recording / playback apparatus, and converts the received television broadcast into a video. A video recording / reproducing apparatus built-in television for displaying and displaying video content reproduced from the video signal recording / reproducing apparatus, a power source for supplying power, a control unit to which power is constantly supplied from the power source, A receiving unit configured to receive the television broadcast based on a control signal from the control unit; a display unit configured to display the received television broadcast as a video and display the video content reproduced from the video recording / playback device; And a non-volatile recording medium for selecting and storing program information related to the video content recorded in the video recording / reproducing apparatus. , Based on a control signal from the control unit, records the video content received and selected by the receiving unit, and plays back the video content, and based on a control signal from the control unit, A first power control unit that controls power supply from the power source to the reception display unit, and second power that controls power supply from the power source to the recording / playback unit based on a control signal from the control unit And when the video is displayed on the display unit, the control unit controls the first power control unit to supply power from the power source to the reception display unit, When playing back the video content from the video recording / playback device, the video content list based on the program information stored in the nonvolatile recording medium is displayed on the display unit, The second power control unit is controlled to supply power from the power source, and when the playback of the video content is finished, the second power control unit stops the power from the power source to the recording / playback unit. It is characterized by controlling the power control unit.

  In addition, the present invention receives a television broadcast including video content and program information related to the video content, records the video content in a video recording / playback device incorporating the video content, and stores the recorded program information related to the video content in a nonvolatile manner. A video playback method for a television with a built-in video recording / playback device for displaying the video broadcast stored in a recording medium and receiving the video, and displaying the video content played back from the video signal recording / playback device, comprising: A display step for displaying a list of recorded programs of the video recording / playback apparatus based on program information recorded on the recording medium in response to a first command by the user, and based on the list displayed in the display step A determination step for determining video content to be played back from the video recording / playback device in response to a second command from the user; In accordance with a first command, power is supplied to the recording / reproducing apparatus, and an activation step for activating the recording / reproducing apparatus, an activation completion determining step for determining whether or not the recording / reproducing apparatus has been activated, and a step of determining Based on the determination result, a playback step of playing back the video content corresponding to the second command from the recording / playback device, the playback of the video content in the playback step is completed, or the user stops the playback. A reproduction stop determination step for determining whether or not there is a third command to be requested, and as a result of the determination in the reproduction stop determination step, the reproduction of the video content is completed, or when there is the third command, A playback stop step for stopping the playback operation of the recording / playback apparatus; and a power supply stop step for stopping power supply to the recording / playback apparatus after the playback stop. It is characterized by a door.

  According to the present invention, it is possible to provide a video recording / playback device built-in television that reduces power without impairing operability, and a video playback method of the video recording / playback device built-in television. There is an effect that it can contribute to effective use.

1 is a block diagram of a television including a video recording / reproducing apparatus showing an embodiment of the present invention. It is a block diagram of the television containing the video recording / reproducing apparatus which shows another one Example of this invention. It is a block diagram of the television containing the video recording / reproducing apparatus which shows another one Example of this invention. It is a figure which shows the display of the video recording program list which shows one Example of this invention. It is a flowchart of the reproducing | regenerating method of the video recording / reproducing apparatus which shows one Example of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram of a television including a video recording / reproducing apparatus showing an embodiment of the present invention. Reference numeral 10 denotes a power supply unit. If commercial power is supplied to a TV outlet plug (not shown), V is shown in the figure regardless of whether a TV power switch (not shown) is turned on. Power is supplied to the power line indicated by. Reference numeral 11, which is described as block 1, is a control unit, and as described above, power is supplied regardless of the state of the power switch of the television, and the state of the entire apparatus is controlled. Reference numeral 12 indicated as a block 2 is a reception display unit which receives a broadcast and displays an image. Here, power from the power supply unit 10 is supplied via a switch 101, and power is not supplied when the power switch is not turned on. A recording / reproducing unit 13 denoted as block 3 records a broadcast and reproduces the recorded content in response to a user request. Here, the power from the power supply unit 10 is supplied through the switch 102, and whether or not to supply power is determined by a method different from that of the switch 101 as described later. Note that the control signal lines of the switch 101 and the switch 102 are not shown in order to avoid complication of the drawing, but these are controlled by a control signal from the control unit 11 (particularly the CPU 112).

  Next, the overall operation will be described. Initially, commercial power is supplied to the outlet plug of the TV, but the power switch of the TV is turned off. In this state, as described above, the power from the power supply unit 10 is supplied only to the control unit 11 so that an operation command from the remote controller can be received. For example, when a user operates a remote controller to send an operation command to the remote control receiver 111 in order to turn on the power switch of the television, a CPU (Central Processing Unit) 112 sends a control signal via the bus 128 in response to this, The switch 101 is connected to supply power from the power supply unit 10 to the reception display unit 12. Thereafter, the switch 102 is connected to the recording / reproducing unit 13 as necessary, and the power is supplied from the power unit 10 to the recording / reproducing unit 13 as will be described in detail later.

  Broadcast radio waves from an antenna (not shown) are supplied to the input terminal 120, and a tuner 121 selects a broadcast channel desired by the user. Note that the channel to be selected is determined by the CPU 112 controlling the tuner unit 121 via the bus 128 based on the selection command sent to the remote control receiving unit 111 when the user operates the remote control, for example. The received signal of the selected channel is demodulated in accordance with the modulation scheme applied for transmission by the demodulator 122, and errors generated during transmission are corrected. Next, the descramble unit 123 decrypts the cipher applied to improve the confidentiality at the broadcasting station.

  For example, three programs (also referred to as video contents) are time-division multiplexed on one broadcast channel, but in the same way as described above, in the demultiplexer 124, in accordance with a command from the user, for example, by remote control operation, Video content is selected. The selected video content is decompressed by the MPEG decoder 125 after the data compression by the MPEG (Moving Picture Experts Group) applied at the broadcasting station is released, and is given to the display unit 126 as a three primary color signal for display. The user can view the program displayed on the display unit 126.

  In order to avoid complication of the drawings, an audio signal processing circuit and a speaker are omitted. Naturally, audio information accompanying the video content is also signal-processed and output to the speaker. When displaying the EPG, the program information sequentially received with the broadcast is stored in, for example, the flash memory 127, and the program information of all the channels is displayed in a time-sequential manner in a list format of a predetermined format. 126 is displayed.

  When the user makes a recording reservation for a specific program using this EPG, the control unit 11 puts the switch 102 in the connected state when the reservation time approaches, and the HDD control unit 132 will be described later so that the recording / reproducing unit 13 can operate. Make initial settings. When the start time of the corresponding program is reached, the recording / playback unit 13 starts the recording operation. At this time, the demultiplexer 124 provides the HDD controller 132 with the content data of only the program reserved for recording by the user and the program information of only the program to be described later separately from the received broadcast signal. The HDD control unit 132 controls the HDD 131 to record these data for each predetermined sector. The program content data and the program information are recorded in different areas, but the program information is recorded by adding information indicating the recording location of the content data.

  When playing back a program recorded in the recording / playback unit 13, the user causes the display unit 126 to display a recorded program list using, for example, a remote controller. As will be described later, the recorded program list is created based on the program information, and in addition to the recorded date / time, time length, channel, etc. for each recorded program, a thumbnail image notifying the contents of the program may be displayed. The user sees this and selects a program to be played using, for example, a remote controller. Since the program selected at that time is reproduced and displayed on the display unit 126, viewing by so-called time shift becomes possible.

Next, a power supply method in the recording / reproducing unit 13, that is, a control method of the switch 102 will be described in detail.
Conventionally, when a power switch of a television is turned on, the switch 102 is in a connected state without a recording or reproduction command from the user, and power is supplied to the recording / reproducing unit 13. This is because the initial setting is performed so that the recording or reproducing operation can be performed immediately when the user command is issued. Since the HDD 131 can perform recording, reproduction, and erasing operations on each sector (for example, configured in units of 512 bytes) at any time, recorded sectors and unrecorded or erased sectors are irregularly mixed. . Unrecorded or erased sectors are managed by bitmap data stored in the HDD 131. By reading this bitmap data in the initial setting when the user turns on the power switch of the television, the television recognizes an empty sector of the HDD 131 and prepares for the start of the recording operation. Further, the program information of the recorded program is read out to the flash memory 127 to prepare for the start of the reproduction operation. For example, when the HDD 131 has a capacity of 250 GB, the initial setting takes about 30 seconds to 1 minute. During that time, recording and playback operations cannot be performed. For example, the recording based on the program information of the recorded information is performed. I couldn't even see the program listing.

  Further, until the power switch of the television is turned off, the power source is still connected to the recording / reproducing unit 13, and the HDD control unit 132 rotates the HDD 131, so that power is consumed. This is to speed up the start of operation. When the recording / reproducing operation is not performed in order to reduce the power, the number of revolutions is reduced, but still 2 to 3 W of power is consumed, and further power consumption reduction is desired. It was.

The present invention is characterized in that the current consumption is reduced without impairing the operability due to the delay of the start of the operation, particularly the start of the reproduction operation.
For this purpose, first, the program information of the recorded program is not stored in the HDD 131 but is stored in the flash memory 127 which is a nonvolatile memory from the beginning. When the user requests a recorded program list to play back a recorded program, the program information stored in the flash memory is read and displayed on the display unit 126.
At the same time, the switch 102 is connected for the first time at this time, and power is supplied to the recording / reproducing unit 13. The HDD control unit 132 reads the bitmap data described above, and based on this, the television performs an initial setting for grasping an empty sector of the HDD 131.

Since the recorded program list is generated based on the data stored in the flash memory 127, it is possible to display the recorded program list as soon as the user requests it even immediately after turning on the television, unlike the conventional case. Since the initial setting can be completed while the user selects a program to be reproduced from the recorded program list, the delay in the start of the reproduction operation does not become a problem. Further, when only reproduction is performed without performing recording or erasure, the initial setting using the bitmap data is unnecessary, and the reproduction operation may be started immediately.
Unlike the conventional case, when the recording, reproduction or erasing operation is not performed, the switch 102 is turned off and no power is supplied to the recording / reproducing unit 13. For this reason, current consumption can be reduced without impairing operability.
Conventionally, the switches 101 and 102 are one switch, and the power supply is connected to or disconnected from the reception display unit 12 and the recording / reproducing unit at the same time. However, in the present invention, the two switches have the same timing. Will be different.

  Also in the present invention, recorded program information may be recorded in the HDD 131 in addition to the flash memory 127. In this case, when the recorded program list generated with the data from the flash memory 127 at first differs from the recorded program list generated with the data from the HDD 131, the display on the display unit 126 is switched to the latter. It can be used.

  Although the start-up of the recording operation is delayed, the method of making a recording reservation using the EPG is overwhelming at present, and the program currently being viewed is rarely recorded suddenly. For this reason, deterioration in operability due to the delay in the start of the recording operation hardly poses a problem.

  Next, an example in which the above embodiment is modified will be described with reference to FIGS. FIG. 2 is a block diagram of a television including a video recording / reproducing apparatus showing another embodiment of the present invention. FIG. 2 differs from FIG. 1 in that the HDD control unit 132 belongs to the reception display unit 12 instead of the recording / playback unit 13. Therefore, the power is supplied to the HDD control unit 132 when the power of the television is connected. This eliminates the rise delay by the HDD control unit 132. The power supply of the HDD 131 having the largest power consumption in the recording / reproducing unit 13 in FIG. 1 is the same supply method as in FIG. Thus, the case where the power of the recording / reproducing unit excluding the HDD 131 is supplied from the reception display unit is also within the scope of the present invention.

  FIG. 3 is a block diagram of a television including a video recording / reproducing apparatus showing still another embodiment of the present invention. 3 differs from FIG. 1 in that the switches 101 and 102 are not present, and switches 103 and 104 that function similarly are provided on the ground terminal side instead. It goes without saying that the object can be achieved by a method of cutting off the current on the ground side, for example, while cutting off the power supply voltage as shown in FIG. Other examples with similar modifications are conceivable, but all fall within the scope of the present invention.

Next, a list of recorded programs displayed on the display unit 126 according to the present invention will be described with reference to FIG. FIG. 4 is a diagram showing the display of a recorded program list showing one embodiment of the present invention. 4 in the figure indicates a display screen.
The user selects a recorded program that he / she wants to view from this list with the remote controller, and reproduces it from the HDD 131 to display it. The program information includes a recorded date 41, a recording start time 42, a recorded time length 43, a broadcast channel 44, a recording mode 45, and a title 46, which are displayed in this list.

  Among these, the recording mode 45 is a recording mode used in the recording / reproducing unit 13, and TS (Transport Stream) indicates that the data is recorded in the state of being compressed and transmitted by MPEG. SP (Standard Play) indicates that recording was performed by converting to the SP mode in the DVD (Digital Versatile Disc) standard. Accordingly, the information on the recording mode 45 is generated by the recording / reproducing unit 13.

The other information is information that was originally sent with the broadcast and that is related to the program recorded from all the program information being broadcast by the demultiplexer 124.
In addition, it is often the case that one thumbnail image for informing the program content is selected from the content image to reduce the amount of data and display the image. As a matter of course, the content originally transmitted by broadcasting is processed and generated by the HDD control unit 132.

Next, the operation during reproduction will be described with reference to FIG. FIG. 5 is a flowchart of the playback method of the video recording / playback apparatus showing an embodiment of the present invention.
First, it is assumed that the switch 101 is in the connected state in FIG. 1, and the power source 10 is supplied to the control unit 11 and the reception display unit 12 to perform normal television broadcast reception and display on the display unit 126.

  In step S501, the user uses the remote controller to request the control unit 11 to display a recorded program list (list) as shown in FIG. When the remote control receiving unit 111 accepts this request, the CPU 112 in step S502, the program information of the recorded program in the recording / playback unit 13 from the flash memory 127, for example, recorded date, recording start time, time length, channel, recording mode, The title and thumbnail image are read out and displayed on the display unit 126 as shown in FIG.

  In step S503, based on the signal from the remote control receiving unit 111, the CPU 112 determines whether or not the recorded program to be played back is selected from the list in FIG. If it has not been determined yet (N in the figure), the process returns to step S502 and waits for the user's determination.

If it has already been determined (Y in the figure), in step S504, the CPU 112 inquires the HDD control unit 132 to determine whether or not the initial setting of the HDD 131 of the recording / reproducing unit 13 has been completed. If it has not been started up (N in the figure), the CPU 112 activates the HDD 131 with the switch 102 connected in step S505. Further, if it is determined in step S506 that the HDD 131 has been activated and the operation can be started (Y in the figure), the recording / playback unit 13 starts playing the recorded program specified by the user based on the command of the CPU 112 in step S507. To do.
If the HDD 131 has already been started up in step S504 (Y in the figure), similarly, playback of the recorded program designated by the user is started in step S507.

Next, when the reproduction of the recorded program is completed in step S508 or when the user requests the control unit 11 to stop the reproduction using the remote controller (Y in the figure), the CPU 112 records the reproduction unit 13 in step S509. Command to stop playback operation.
In step S510, the CPU 112 disconnects the switch 102, stops the power supply to the recording / playback unit 13 including the HDD 131, and ends the flow.

  If the activation of the HDD 131 is not completed in step S506 (N in the figure), the determination is repeated until this is completed (Y in the figure). Similarly, if the playback of the recorded program has not yet ended in step S508 and the user does not request playback stop (N in the figure), there is a request to end playback or stop playback (Y in the figure). ) Repeat the determination.

  Further, as described above, it is not necessary to set the switch 102 in the connected state in step S505. When the display of the recorded program list (list) is requested in step S501, the switch 102 may be connected and the HDD 131 may be activated. In this case, step S504 and step S505 in FIG. 5 are removed, and it is sufficient to determine whether the HDD 131 has been started up in step S506.

  In the above flow chart, the power to the recording / reproducing unit 13 is supplied immediately before performing the reproducing operation, and is disconnected immediately after the end. In addition, the HDD 131 is activated while the user selects a recorded program to be reproduced in the recorded program list created based on the data from the flash memory 127. Therefore, there is an effect that it is possible to realize a reproduction method of a video recording / reproducing apparatus with a built-in television with reduced power consumption without impairing operability.

In addition, the above embodiment is an example to the last and this invention is not limited to this. More embodiments with various modifications are conceivable not only in the block diagram of FIG. 1 as described above but also in the flowchart of FIG. 5, all of which fall within the scope of the present invention.
Further, in the description of the present invention, the video recording / playback apparatus and playback method built in the television that can exhibit the most convenience has been described as an example. The present invention can also be applied to a playback apparatus, and this is also within the scope of the present invention.

  10: power supply unit, 11: control unit, 12: reception display unit, 13: recording / playback unit, 101-104: switch, 112: CPU, 124: demultiplexer, 125: MPEG decoder, 126: display unit, 127: flash Memory: 131: HDD, 132: HDD control unit, 4: Recorded program list.

Claims (5)

A television broadcast including video content and program information related to the video content is received, the video content is recorded on a built-in video recording / playback device, the received television broadcast is displayed as a video, and the video signal recording / playback device A television with a built-in video recording / playback device for displaying the played video content,
A power supply for supplying power;
A controller that is constantly supplied with power from the power source;
Based on a control signal from the control unit, a receiving unit for receiving the television broadcast, and a display unit for displaying the received television broadcast as a video and displaying the video content reproduced from the video recording / reproducing device as a video And a non-volatile recording medium for selecting and storing program information related to the video content recorded in the video recording / playback device,
Based on a control signal from the control unit, the video content received and selected by the receiving unit is recorded, and a recording / reproducing unit for reproducing the video content;
A first power control unit for controlling power supply from the power source to the reception display unit based on a control signal from the control unit;
A second power control unit that controls power supply from the power source to the recording / reproducing unit based on a control signal from the control unit;
The controller is
When displaying video on the display unit, the first power control unit is controlled to supply power from the power source to the reception display unit,
When playing back the video content from the video recording / playback apparatus, a list of the video content based on program information stored in the nonvolatile recording medium is displayed on the display unit, and the power source for the recording / playback unit is displayed. Controlling the second power control unit to supply power from
The television with a built-in video recording / reproducing apparatus, wherein when the reproduction of the video content is finished, the second power control unit is controlled to stop the power from the power source for the recording / reproducing unit.   2. The television with a built-in video recording / reproducing apparatus according to claim 1, wherein the nonvolatile recording medium is a nonvolatile semiconductor memory.   The television with a built-in video recording / reproducing apparatus according to claim 1, wherein the recording medium of the recording / reproducing unit is a hard disk memory.   2. The television with a built-in video recording / reproducing apparatus according to claim 1, wherein the first and second power control units are switchers. A television broadcast including video content and program information related to the video content is received, recorded in a video recording / reproducing apparatus incorporating the video content, and the recorded program information related to the video content is stored in a nonvolatile recording medium. Also, a video playback method for a television with a built-in video recording / playback device for displaying the received television broadcast as a video and displaying video content played back from the video signal recording / playback device,
A display step of displaying a list of recorded programs of the video recording / reproducing device based on program information recorded on the recording medium in response to a first command by the user of the television;
A determination step of determining video content to be played back from the video recording / playback device in response to a user's second command based on the list displayed in the display step;
A starting step of supplying power to the recording / reproducing apparatus in response to the first command and starting the power;
An activation completion determining step for determining whether or not the recording / reproducing apparatus has been activated;
A reproduction step of reproducing the video content corresponding to the second command from the recording / reproducing apparatus based on the determination result in the determination step;
A reproduction stop determination step for determining whether or not the reproduction of the video content in the reproduction step has ended, or whether the user has issued a third command for requesting the stop of the reproduction;
As a result of the determination in the playback stop determination step, playback of the video content ends, or when there is the third command, a playback stop step of stopping the playback operation of the recording / playback device;
A video playback method for a television with a built-in video recording / playback apparatus, comprising: a power supply stop step of stopping power supply to the recording / playback apparatus after the playback stop.

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