JP3877136B2 - Television receiver with built-in hard disk recorder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a television receiver with a built-in hard disk recorder that records a television signal on a hard disk and reproduces a television signal recorded on the hard disk.
[0002]
[Prior art]
A video tape recorder (VTR) using a video tape has been widely used as a recording / reproducing apparatus for recording / reproducing a television signal. In recent years, as the storage capacity of a hard disk (HDD) has increased remarkably, it has become possible to record television signals on the HDD for a relatively long time. Therefore, a recording / reproducing apparatus called a hard disk recorder that uses an HDD instead of a video tape as a recording medium has appeared.
[0003]
Hard disk recorders do not require rewinding or fast-forwarding like video tapes, quick cueing, and simultaneous recording and playback of recording and playback of television signals in a time-sharing manner. The recording / reproducing apparatus using the video tape has various features that are not available.
[0004]
[Problems to be solved by the invention]
At present, a television receiver with a built-in hard disk recorder has not appeared, but a television receiver with a built-in VTR, so-called televideo, is widely used. The appearance of a receiver is also expected. In a television receiver with a built-in hard disk recorder, it is a matter of course that a function unique to the hard disk recorder is required. Further, as with general televideo, a back program that records a back program different from the program being viewed is recorded. It is expected that a recording function and a timer recording function for recording a program using a timer when not in use will also be required.
[0005]
As described above, in a television receiver with a built-in hard disk recorder, there is a need to satisfy both a function unique to a hard disk recorder and a back program recording function and a timer recording function that have been conventionally performed by a VTR. A configuration that meets this need and is easy to use has been desired.
[0006]
The present invention has been made in view of these problems, and an object of the present invention is to improve the usability of functions unique to a hard disk recorder in a television receiver with a built-in hard disk recorder. It is another object of the present invention to provide a television receiver with a built-in hard disk recorder that can be used with a unique function of a hard disk recorder and existing functions as a recording / playback apparatus such as a back program recording function and a timer recording function. .
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems of the conventional technology, the present invention provides a first tuner (2) that receives a television signal and outputs a first video signal in a television receiver with a built- in hard disk recorder, A second tuner (3) that receives a television signal and outputs a second video signal; a reproduction signal that records the second video signal and reproduces the recorded second video signal; A hard disk recorder (111) that outputs a third video signal, a display unit (8) that displays the first video signal or the third video signal, and the display unit that displays the first video signal. A switching unit (6) for switching whether to supply a signal or the third video signal, and the remote control transmitter (12) or the hard disk recorder built-in television receiver main body. And a first key (121) for switching a channel received by the tuner, and the first video signal displayed on the display unit provided in a remote control transmitter or the main body of the television receiver with a built-in hard disk recorder. In conjunction with the second key (122) for displaying the past video on the display unit and the switching of the channel received by the first tuner by the first key, the second tuner A tuner control unit (5) for controlling the second tuner so that the channel to be received is the same channel as the channel received by the first tuner, and the second video signal is recorded in the hard disk recorder for a predetermined time. By performing recirculation recording while erasing past signals exceeding the predetermined time, A recirculation recording control unit (10) for controlling the second video signal, which is the same video as the first video signal displayed on the display unit, to be recorded in the hard disk recorder for the predetermined time; Regardless of the channel received by one tuner, a specific channel setting means (101) for setting a channel received by the second tuner in a predetermined time zone as a specific channel, and the specific channel setting means Specific channel recording means (5, 10) for recording a video signal of a specific channel by the hard disk recorder, and the second key other than the predetermined time zone set to receive the specific channel by the specific channel setting means In response to the operation of the second key when the display unit is operated. A switching control unit (5) for controlling the switching unit to switch the video signal supplied to the first video signal to the third video signal, and the second key is operated during the predetermined time period. And an on-screen display control unit (5, 52) for generating an on-screen signal indicating that the operation of the second key is invalid and displaying the signal on the display unit. Provided is a television receiver with a built-in hard disk recorder.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a television receiver with a built-in hard disk recorder of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing an embodiment of a television receiver with a built-in hard disk recorder of the present invention, and FIGS. 2 to 5 are diagrams for explaining the operation of the television receiver with a built-in hard disk recorder of the present invention.
[0009]
In FIG. 1, a television broadcast wave coming from an antenna 1 is supplied to and received by both tuners 2 and 3. The tuner 2 is a tuner for displaying a received television signal (video signal) on the display unit 8 such as a cathode ray tube. On the other hand, the tuner 3 is a tuner mainly for recording a received television signal by a hard disk recorder 111 built in the television receiver.
[0010]
In the present embodiment, the tuner 2 is not used as a tuner for recording by the hard disk recorder 111, but the television signal output from the tuner 2 may be recorded by the hard disk recorder 111. Even in this case, the tuner 2 is a tuner mainly for displaying the received television signal on the display unit 8 such as a cathode ray tube.
[0011]
The television signal output from the tuner 2 is input to the video / audio switching unit 6. The television signal output from the tuner 3 is supplied to the HDD control unit 10 constituting a part of the hard disk recorder 111 via the switch 4. The television signal input to the HDD control unit 10 is recorded in the HDD 11 under the control of the HDD control unit 10. The HDD control unit 10 MPEG2 encodes the television signal and records it in the HDD 11. The role of the switch 4 will be described later. The television signal reproduced by the HDD 11 is input to the video / audio switching unit 6 via the HDD control unit 10.
[0012]
The control unit 5 controls the entire television receiver shown in FIG. That is, the control unit 5 switches the channels received by the tuners 2 and 3 and controls switching of the switch 4 and the video / audio switching unit 6. The control unit 5 also controls the HDD control unit 10. A remote control signal from the remote control transmitter 12 is input to the control unit 5 via a remote control light receiving unit (not shown). Thereby, the control unit 5 controls each part of the circuit in accordance with the remote control signal generated by the user's operation.
[0013]
The video / audio switching unit 6 is for appropriately switching and outputting the input video signal and audio signal. The video / audio switching unit 6 supplies at least one of the video signal S 1 and the video signal S 2 to the image synthesis unit 7. The video signal S 1 is a video signal of a television signal received by the tuner 2 or a video signal supplied from the hard disk recorder 111. The video signal S <b> 2 is a video signal supplied from the hard disk recorder 111 or a television signal received by the tuner 3.
[0014]
When the two video signals S 1 and S 2 are input, the image synthesis unit 7 synthesizes them and supplies them to the display unit 8. The video / audio switching unit 6 outputs the two video signals S1 and S2 because the television receiver of this embodiment has a two-screen display function. If the two-screen display function is not required, one video signal output from the video / audio switching unit 6 is sufficient. Also in this embodiment having a two-screen display function, when displaying a single screen instead of two screens, one of the video signals S1 and S2 may be set to no signal.
[0015]
In addition, the video / audio switching unit 6 supplies an audio signal to the speaker 9. The audio signal supplied to the speaker 9 is an audio signal corresponding to the video signal when displaying a single screen, and is an audio signal corresponding to one of the video signals when displaying two screens. In practice, an amplifier circuit or the like exists between the video / audio switching unit 6 and the speaker 9, but the illustration is omitted here.
[0016]
The television receiver with a built-in hard disk recorder configured as described above operates as follows. First, as one of the functions unique to the hard disk recorder, the hard disk recorder 111 automatically records (caches) the received television signal in the HDD 11 for a predetermined time (for example, 3 hours). Note that since this automatic recording is a recirculation type recording, the past recording is deleted after a predetermined time.
[0017]
Thereby, the user can display the past video (scene) of the program currently being viewed again. As described above, since the hard disk recorder 111 can perform simultaneous recording and reproduction, it can record sequentially received television signals while reproducing past video of the program.
[0018]
Here, as described above, the television receiver with a built-in hard disk recorder shown in FIG. 1 mainly uses the tuner 2 for displaying the received television signal on the display unit 8 and the received television signal by the hard disk recorder 111. And a tuner 3 for recording. Therefore, unless the channel received by the tuner 2 and viewed by the user and the channel received by the tuner 3 are switched in association with each other, the past video of the currently viewed program cannot be displayed again. Become.
[0019]
Therefore, the television receiver with a built-in hard disk recorder of the present invention is configured as follows. The remote control transmitter 12 includes a channel switching key 121 such as an up / down key for switching channels. The channel switching key 121 may be a numeric keypad. When the user operates the channel switching key 121 to switch the channel of the tuner 2, the control unit 5 also switches the channel of the tuner 3 in conjunction with the channel switching of the tuner 2. The control unit 5 includes a nonvolatile memory (EEPROM) 51 and stores the channels received by the tuners 2 and 3.
[0020]
With reference to FIG. 2, the interlock control of channel switching of the tuners 2 and 3 will be described. 2A is an example of the reception channel of the tuner 2, and FIG. 2B is an example of the reception channel of the tuner 3. When the user switches to channel 6 at 19:00, the reception channel of tuner 3 is switched to channel 6 accordingly. When the user switches to channel 8 at 20:00, the reception channel of the tuner 3 is switched to channel 8 accordingly. This linked switching control makes it possible to display the past video of the currently viewed program again.
[0021]
The remote control transmitter 12 is provided with a short playback key 122 for displaying a past video of the program currently being viewed again. 3A shows a screen received at each time, and the current screen is Fn. When the user operates the watching / reproducing key 122 for a moment, the control unit 5 goes back from the display of the television signal output from the tuner 2 for a predetermined time reproduced from the hard disk recorder 111 as shown in FIG. (For example, 7 seconds before) The display is switched to the display from the past screen F1.
[0022]
Specifically, it is as follows. The control unit 5 controls the video / audio switching unit 6 to output the video signal of the television signal output from the tuner 2 as the video signal S1. As a result, the currently broadcast video received by the tuner 2 is displayed on the screen of the display unit 8.
[0023]
Then, when the watch reproduction key 122 is operated, the control unit 5 controls the HDD control unit 10 to reproduce the past screen, and also outputs the video signal S1 output from the video / audio switching unit 6 from the hard disk recorder 111. Switch to the playback signal. The hard disk recorder 111 records the incoming television signals sequentially and reproduces them at different times. By operating the watch playback key 122 again, it is possible to return to the video currently being broadcast which is the output of the tuner 2.
[0024]
Furthermore, the television receiver with a built-in hard disk recorder of the present invention can record the back program by the hard disk recorder 111, or set the timer and record the timer. In back program recording and timer recording, the above-described interlock control of channel switching of the tuners 2 and 3 is not performed, and the channel of the tuner 3 is fixed to the channel selected by the user.
[0025]
The timer recording will be specifically described. The HDD control unit 10 includes a reservation recording control unit 101. When a timer recording setting key (not shown) provided in the remote control transmitter 12 is set, the setting information is stored in the control unit 5. Is input to the timer recording control unit 101. The scheduled recording control unit 101 writes timer recording setting information indicating when (what day of the week) and which channel is recorded from what time to what time in a predetermined area of the HDD 11. The control unit 5 includes a clock 53. The scheduled recording control unit 101 always reads the setting information written in the HDD 11 and monitors the day of the week and time information input from the clock 53 of the control unit 5.
[0026]
When the set timer recording time is reached, the control unit 5 switches the tuner 3 to the set channel and controls the hard disk recorder 111 to record the program of the channel. TPG in FIG. 2B indicates timer recording in which channel 1 is recorded from time 21:00 to time 21:45. During the timer recording TPG, the channel of the tuner 2 is switched from the channel 8 to the channel 10, but the channel of the tuner 3 remains the channel 1 set by the timer recording, and the channel switching of the tuner 2 is performed by the tuner. 3 is not affected.
[0027]
When the timer recording TPG ends at time 21:45, the channel of the tuner 3 is switched to the channel 10 selected by the tuner 2 when the timer recording TPG ends. Even when the user selects a channel and records the program, such as the back program recording, instead of the timer recording that starts and ends the recording by setting the timer, the interlock control of the channel switching of the tuners 2 and 3 is performed. Absent.
[0028]
As described above, the television receiver with a built-in hard disk recorder according to the present invention has a specific channel in which the channel set to be received by the tuner 3 is set by the user regardless of the channel to be received by the tuner 2, such as back program recording or timer recording. And a hard disk recorder 111 for recording a video signal and an audio signal received on the specific channel.
[0029]
When the video signal received on the specific channel by the hard disk recorder 111 is recorded by the specific channel recording means, the control unit 5 does not link the channel received by the tuner 3 with the switching of the channel received by the tuner 2, Fix at a specific channel. In other words, the interlock control of the channel switching of the tuners 2 and 3 is not performed in a state where the hard disk recorder 111 is recording a specific channel set by the user, and is automatically recorded when the receiver is turned on. It is done in the state of automatic recording.
[0030]
Next, two-screen display in the television receiver with a built-in hard disk recorder of the present invention will be described. The remote control transmitter 12 includes a two-screen display key 123 for displaying a currently broadcast video and a past video recorded in the hard disk recorder 111 on a two-screen. When the user operates the two-screen display key 123, the hard disk recorder 111 reproduces the past screen and inputs the reproduction signal to the video / audio switching unit 6. The video / audio switching unit 6 inputs the video from the tuner 2, which is currently being broadcast, to the image synthesis unit 7 as the video signal S 1, and the past video that has been played back from the hard disk recorder 111 for a predetermined time as the video signal S 2. Input to the image composition unit 7.
[0031]
As shown in FIG. 4, for example, the image composition unit 7 composes an image so that the image (1) based on the video signal S1 is displayed on the right side and the image (2) based on the video signal S2 is displayed on the left side, and is supplied to the display unit 8 To do. With this two-screen display, it is possible to display past video while viewing the video currently being broadcast. By operating the two-screen display key 123 again, it is possible to return to the single screen of the current video that is the output of the tuner 2.
[0032]
In this embodiment, it is possible to display not two screens of a video currently being broadcast and a past video reproduced from the hard disk recorder 111, but two screens of videos of two different channels. The remote control transmitter 12 includes a two-screen display key 124 for displaying images of two different channels on two screens. When the user operates the two-screen display key 124, the control unit 4 switches the switch 4 to connect to the upper terminal in FIG. Thereby, the video of two different channels can be displayed on two screens. By operating the two-screen display key 124 again, it is possible to return to the single screen that is the output of the tuner 2.
[0033]
By the way, in the state where the signal received by the tuner 3 by the specific channel recording means is recorded by the hard disk recorder 111, the past video of the program currently being viewed as shown in FIG. It cannot be displayed again. Similarly, as shown in FIG. 4, it is not possible to display two screens of a video currently being broadcast and a past video recorded in the hard disk recorder 111. In the specific channel recording state, even if the user operates the watching / reproducing key 122 or the two-screen display key 123, the display as shown in FIGS. 3 and 4 is not performed. Further, since the specific channel is being recorded, the switch 4 cannot be switched.
[0034]
Even if the viewing / playback key 122 or the two-screen display keys 123 and 124 are operated, the screen display state intended by the user is not achieved, so that the user may misunderstand that it is a malfunction. Therefore, when the user operates the watching / reproducing key 122 or the two-screen display keys 123 and 124 in the specific channel recording state, it is preferable to display on the screen of the display unit 8 to that effect.
[0035]
Therefore, when the play / play key 122 or the two-screen display keys 123 and 124 are operated in the specific channel recording state, the on-screen signal generation unit 52 built in the control unit 5 turns on the fact that these keys are invalid. A screen signal is generated and supplied to the image composition unit 7. The image synthesizing unit 7 superimposes the on-screen signal on the video signal input from the video / audio switching unit 6 and outputs it. FIG. 5 shows an example of an on-screen signal when the play / play key 122 is operated for a short time in a specific channel recording state. An on-screen signal 8 osd that “cannot be played for a while” is displayed on the screen of the display unit 8.
[0036]
The on-screen signal indicating that the look-ahead reproduction key 122 and the two-screen display keys 123 and 124 are invalid is arbitrary. Even the direct indication indicating that the function corresponding to the key operated like the on-screen signal 8osd is inoperable is operated as “back program recording is in progress” or “timer recording is in progress”. Alternatively, the display may indirectly indicate that the function corresponding to the key is inoperable.
[0037]
The present invention is not limited to the embodiment described above, and various modifications can be made without departing from the scope of the present invention. The channel switching key 121, the short watch reproduction key 122, and the two-screen display keys 123 and 124 may be keys provided on the receiver body.
[0038]
【The invention's effect】
As described above in detail, according to the television receiver with a built-in hard disk recorder of the present invention, it is possible to improve the usability of the functions unique to the hard disk recorder, the functions unique to the hard disk recorder, the back program recording function and the timer recording. It is possible to make it compatible with existing functions as a recording / reproducing apparatus such as functions .
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a diagram for explaining the operation of the present invention.
FIG. 3 is a diagram for explaining the operation of the present invention.
FIG. 4 is a diagram for explaining the operation of the present invention.
FIG. 5 is a diagram for explaining the operation of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Antenna 2, 3 Tuner 5 Control part 6 Video / audio switching part 7 Image composition part 8 Display part 10 HDD control part 11 Hard disk (HDD)
12 Remote control transmitter 111 Hard disk recorder 121 Channel switching key 122 Quick playback key 123, 124 Two-screen display key

Claims (1)

In a television receiver with a built-in hard disk recorder ,
A first tuner for receiving a television signal and outputting a first video signal;
A second tuner for receiving a television signal and outputting a second video signal;
A hard disk recorder that records the second video signal and outputs a third video signal that is a reproduction signal obtained by reproducing the recorded second video signal;
A display unit for displaying the first video signal or the third video signal;
A switching unit for switching whether to supply the first video signal or the third video signal to the display unit;
A first key for switching a channel to be received by the first tuner, provided on a remote control transmitter or the main body of the television receiver with a built-in hard disk recorder;
A second key for displaying a past video of the first video signal displayed on the display unit on the display unit provided on a remote control transmitter or the television receiver main body with a built-in hard disk recorder;
In conjunction with the switching of the channel received by the first tuner by the first key, the channel received by the second tuner is set to the same channel as the channel received by the first tuner. A tuner control unit for controlling the tuner of
The second video signal is recorded on the hard disk recorder for a predetermined time, and is recorded on the display unit by performing recirculation recording while erasing past signals exceeding the predetermined time. A recirculating recording control unit that controls to record the second video signal, which is the same video as the video signal, in the hard disk recorder for the predetermined time;
A specific channel setting means for setting, as a specific channel, a channel received by the second tuner in a predetermined time zone, regardless of a channel received by the first tuner;
Specific channel recording means for recording the video signal of the specific channel set by the specific channel setting means by the hard disk recorder;
When the second key is operated outside the predetermined time period set to receive the specific channel by the specific channel setting means, in response to the operation of the second key, the display unit A switching control unit that controls the switching unit to switch the video signal to be supplied from the first video signal to the third video signal;
An on-screen display control unit that generates an on-screen signal indicating that the operation of the second key is invalid when the second key is operated during the predetermined time period and displays the on-screen signal on the display unit A television receiver with a built-in hard disk recorder, characterized by comprising:

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