JP2623561B2 - VTR integrated TV receiver - Google Patents

Description

The present invention relates to a VTR-integrated television receiver.

[Summary of the Invention]

The present invention is a VTR-integrated television receiver having a picture-in-picture function, which performs a predetermined channel selection process and a control process at the time of recording a broadcast, thereby easily and reliably executing the recording. It is made possible.

[Prior art] Generally, a VTR having a tuner circuit for channel selection and a television receiver are separate units, and these are used in combination. It is possible to record the counter program while watching the front program.

And in this case, since the VTR and the television receiver are separate bodies, there is no mistake between the channel selection section of the VTR and the channel selection section of the television receiver.
Therefore, there is no mistake between selecting a channel to be displayed on the television receiver and selecting a channel to be recorded on the VTR. That is, there is no problem in the operability of receiving and recording.

Also, a deck type VTR without a tuner circuit
Also, when the television receiver is integrated with the television receiver, there is only one tuner circuit, so the channel being watched can be recorded simply by pressing the recording switch, which again causes a special problem in operability. Never.

Document: JP-B-61-11510 [Problems to be Solved by the Invention] However, a so-called picture-in-picture in which another small sub-screen can be projected on the main screen has been developed. TV receiver, deck type
When the VTR is integrated, a tuner circuit for the main screen and a tuner circuit for the sub-screen are provided, which causes a problem in operability at the time of recording.

In other words, when the recording switch is pressed, if the channel of the main screen is always recorded, it is easy to understand how to use it, but it becomes impossible to record the counterprogram (sub-screen).

Therefore, if the channel of the sub-screen is configured to be recorded when the recording switch is pressed, it is possible to record the counter program, but there are times when the sub-screen is projected and when not projected. Therefore (this depends on the user's selection), when the image is not being projected, there is a problem in checking the channel or the program content.

Further, it is conceivable to provide a switch for selecting the channel of the main screen and the channel of the sub-screen, and to record the channel of the screen selected by this switch. Causes the same problem. In addition, the correspondence between the channel recorded by switching the switch, the channel of the main screen and the channel of the sub screen is reversed, and the VTR and the TV receiver are integrated, so that all the operation switches are on the front of the cabinet , Operation errors easily occur.

It is also conceivable to record the channel of the main screen when only the main screen is projected, and to record the channel of the sub-screen when the sub-screen is also projected. Operation becomes complicated.

The present invention seeks to eliminate such problems.

[Means for solving the problem]

In order to solve the above-described problems, according to the present invention, a picture-in-picture function for projecting a reduced sub-screen in a main screen is provided, and a VTR is integrated. In the television receiver, first and second tuner circuits independent of each other and a video signal of a channel selected by the first tuner circuit are displayed as the main screen, and channel selection is performed by the second tuner circuit. A video signal processing circuit for projecting the video signal of the selected channel as the sub-screen, and the first tuner circuit selects the second tuner circuit when recording by the VTR. Channel is selected, and the video signal of the channel selected by the second tuner circuit is transmitted to the VTR.
At the time of recording, regardless of whether the sub-screen is projected before the start of recording, at least for a predetermined period from the start of recording, the video signal recorded in the VTR is displayed on the sub-screen, Provided is a VTR-integrated television receiver in which the sub-screen is deleted if the sub-screen is not displayed before the start of recording.

[Action]

 Recording is performed easily and reliably.

〔Example〕

In FIG. 1, reference numeral (90) denotes a system controller constituted by a microcomputer. The system controller (90) has various operation switches (9A) to (9N) operated by a user. 9A) ~
Control signals are output from the system controller (90) in response to the operation of (9N), and these control signals are supplied to the respective circuits.

Reference numerals (11) and (21) denote first and second tuner circuits. These tuner circuits (11) and (21) are of an electronic tuning type, and include a tuning control signal from a system controller (90). CH
A channel is selected according to N1 and CHN2, and the video intermediate frequency signal is extracted. And these signals are
The video signal is supplied to the video detection circuits (13) and (23) through the video intermediate frequency amplifiers (13) and (23), and is supplied to the tuner circuit (11).
The color video signals (color composite signals) V ₁ and V _{2 of} the channel selected by (21) are extracted, respectively.

Further, audio intermediate frequency signals are extracted from the intermediate frequency amplifiers (12) and (22), and these signals are passed through the audio intermediate frequency amplifiers (14) and (24) to audio detection circuits (15) and (25).
And the audio signals S ₁ and S ₂ of the selected channel in the tuner circuits (11) and (21) are respectively extracted.

Reference numerals (31) and (32) denote external input terminals. These terminals (31) and (32) are connected to an external signal source, for example, a video disc player (not shown). V ₃ and the audio signal S ₃ is supplied.

Furthermore, (40) is the VT integrated with this receiver.
R, for example, a VTR such as 8 mm video, and this VTR (4
0) is the operation mode control signal MODE from the system controller (90).
There is provided, at the time of reproduction, a color video signal V ₄ and audio signal S ₄ is taken out.

Then, (81) - (84) shows a switching circuit, these switching circuits (81) - (84) has a contact A through C, the signal V ₁ to these contacts A through C ~V _4, S ₁ ~ with S ₄ is provided in a combination as shown, is supplied a control signal SW from the system controller (90), the switch circuit (81), of one of the video signals V ₁ ~V ₄ from (82) Signals Vi and Vj (i =
1, 3, 4, j = 2 to 4) are taken out, and any of the audio signals S _{1 to} S ₄ is taken out of the switch circuits (83), (84).

Also, (51) and (54) show Y / C processing circuits, and these processing circuits (51) and (54) include switch circuits (81) and (82).
Are supplied to the three primary colors Ci and Cj, the signal Ci is supplied to the synthesizing circuit (52), and the signal Cj is supplied to the synthesizing circuit (52) through the reduction circuit (55). You.

In this case, the reduction circuit (55) has, for example, an A / D converter, a memory, a D / A converter, etc., and converts the signal Cj into a signal for a sub-screen. Also, the synthesizing circuit (52) is controlled by the control signal ENSB from the system controller (90), and outputs the input signal Ci as it is when the mode does not display the sub-screen, and in the mode for displaying the sub-screen. A signal Cj is synthesized with the signal Ci and output.

The output signal of the synthesizing circuit (52) is supplied to the color picture tube (53), and the signal Si from the switch circuit (83) is supplied to the speaker (57) through the amplifier (56).

Further, the signals Vj, S from the switch circuits (82) and (84)
j is supplied to the VTR (40) as a recording signal.

The ROM of the microcomputer constituting the system controller (90) is provided with, for example, a routine (100) of a flowchart shown in FIG.

In such a configuration, when the synthesis of the signal Cj in the synthesis circuit (52) is prohibited by the signal ENSB, the switching of the switch circuits (81) and (83) is performed in response to the switching. Next, the switching circuit (81), it is possible to view the main screen any signal Vi, the image and audio by Si in accordance with the switching of (83), when the signal V _1, S ₁ is the signal CHN1
Allows you to watch any channel.

Also, the signal Cj in the synthesis circuit (52) is generated by the signal ENSB.
When the composition of the sub-screen is permitted, the display of the sub-screen is permitted, and in response to the switching of the switch circuits (82) and (84), In accordance with the switching of the switch circuit (82), an image by an arbitrary signal Vj is displayed on the sub-screen, and
When the signal V ₂ can Utsude any channel by the signal CHN2.

Therefore, in this case, the switch circuits (81) to
In accordance with the switching of (84), the sub-screen according to Table 2 is displayed in the main screen according to Table 1.

Then, in a state where the switch circuits (81) to (84) are connected to the contacts A or B, the VTR (40)
Is set to the recording mode, the routine (100) of the flowchart shown in FIG. 2 is executed to perform recording.

That is, for example, the switch circuits (81) to (84) are connected to the contacts A to A, and only the main screen is displayed as shown at I in FIG. No.
It is assumed that an image of 14 channels is displayed. Alternatively, it is assumed that not only the main screen but also a sub-screen is displayed as shown at I in FIG. B, and an image of the 21st channel is displayed on this sub-screen.

And when in this state, switch (9A)
~ (9N), when the recording switch is pressed, the CPU of the system controller (90) executes the processing of the step (10) of the routine (100).
Starting from 1) and proceeding to step (102), the value (data) of the signal CHN1 is copied to the signal CNH2 regardless of the value of the signal CNH2 so far. In this case, the signal CHN2 also has a value for selecting the 14th channel, and the 14th channel is also selected in the tuner circuit (21).

Subsequently, the process proceeds to step (103), where the switch circuits (82), (8)
4) is a switch (8
The contact positions are the same as in 1) and (83). In this case, the switch circuits (82) and (84) are connected to the contacts A and A.

Accordingly, in steps (102) and (103), the signals V ₂ and S _{2 of} the channel selected by the tuner circuit (21) are output from the switch circuits (82) and (84) as the signals Vj and Sj.
, And the and would tuner circuit (11) signal V ₁ of the channel selected by, S ₁ and the same signal V _2, S ₂ is outputted. In this case, the signals V ₂ and S ₂ of the 14th channel line-selected by the tuner circuit (21) are extracted from the switch circuits (82) and (84).

Therefore, when the display of the sub-screen is permitted, the image of the 14th channel is also displayed on the sub-screen as shown in II of FIG. 3B.

Next, the process proceeds to step (104), in which the VTR (40) is set to the recording mode by the signal MODE. Therefore, in the VTR (40), the signals V ₂ ,
Recording of S ₂ (= Vj, Sj) is started, that is, recording of the channel projected on the main screen before the recording switch is pressed, in this case, the 14th channel is started. .

Then, the process proceeds to step (105). In this step (105), as shown in II of FIGS. 3A and 3B, regardless of whether or not the sub-screen has been projected before,
The subscreen is projected by ENSB. In this case, the signal V ₂ (= Vj) of the channel projected on this sub-screen is
0), which is equal to the signal V ₂ (= Vj) of the channel supplied to the VTR (40), that is, the channel recorded in the VTR (40), in this case, the 14th channel will be displayed on the sub-screen. .

Subsequently, the process proceeds to the processing step (106).
In step 06), for example, after waiting for 5 seconds, the process proceeds to step (107). In step (107),
Before the execution of this routine (100), it is checked whether or not the sub-screen has been projected. If the sub-screen has not been projected, the process proceeds from step (107) to step (108) to proceed to the third step. A signal as shown in III of Fig. A
Step (109) when the projection of the sub screen is prohibited by ENSB
When the sub-screen is being projected, the process proceeds from step (107) to step (109) and proceeds to step (109) in FIG. 3B.
As shown in (5), the sub-screen is kept projected, and this routine (100) is ended in step (109).

〔The invention's effect〕

Thus, according to the present invention, the switches (9A) to (9A)
Pressing the recording switch of N) will display the sub-screen regardless of whether or not the sub-screen is displayed as shown in Fig. 3, and the video will be recorded on this sub-screen by VTR (40). Since the video signal Vj is projected, a desired image can be confirmed, and recording can be performed reliably and easily.

Further, when the recording switch is pressed, the signal Vj is set to CHN2 = CHN1 so that the signal Vj matches the signal Vi being displayed on the main screen at the same time, and the signal Vj is recorded on the VTR (40). When the switch is pressed, the image projected on the main screen at that time is always recorded, so that the target channel can be reliably and easily recorded.

In addition, since the main screen and the sub-screen can be set independently, the counter-program can be recorded while viewing the front program, and the recorded content can be confirmed on the sub-screen.

Further, when projecting the sub-screen, since it is not determined whether or not the sub-screen has been projected, that is, the sub-screen is projected in step (105) regardless of the state before that, The routine (100) is simple.

[Brief description of the drawings]

FIG. 1 is a system diagram of an example of the present invention, and FIGS. 2 and 3 are diagrams for explanation thereof. (11) and (21) are tuner circuits, (13) and (23) are video detection circuits, (40) are VTRs, (51) and (54) are Y / C processing circuits, and (53) is a color picture tube. , (55) is a reduction circuit, (90)
Is a syscon.

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kunio Hakamada 6-7-35 Kita Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (56) References JP-A-62-57375 (JP, A) JP-A Sho 55-55488 (JP, A) Fully open 1986-163482 (JP, U)

Claims (1)

(57) [Claims] 1. A television receiver having a picture-in-picture function for projecting a reduced sub-screen in a main screen and having a VTR integrated therein, wherein a first and a second independent television receiver are provided. And the video signal of the channel selected by the first tuner circuit is displayed as the main screen, and the video signal of the channel selected by the second tuner circuit is displayed as the sub-screen. And a video signal processing circuit for performing the above operation. When recording by the VTR, the second tuner circuit is tuned to a channel selected by the first tuner circuit, and the second tuner circuit is selected. The video signal of the channel selected by is recorded in the VTR, and at least a predetermined time from the start of recording regardless of whether the sub-screen is displayed before the start of recording. During the period, the video signal recorded in the VTR is displayed on the sub-screen, and then, if the sub-screen is not displayed before the start of recording, the sub-screen is erased so that the sub-screen is erased. Machine.