JPH0832994A - Video tape recorder - Google Patents

Abstract

PURPOSE:To provide a video tape recorder where the systems for an input/ output video signal or a recorded/reproduced video signal are easily recognized. CONSTITUTION:A signal SIN of a switch 4 is not only supplied to switches 6 and 7 but also supplied to a conversion part 8 and a discrimination part 9 through a switch 5. The conversion part 8 converts the television system of the signal SIN to supply it to switches 6 and 7. A signal SREC selected by the switch 6 is supplied to a processing part 10, and a signal RC is recorded by a head part 15. The system of the signal SIN is discriminated by the discrimination part 9, and that of the signal SREC is discriminated by a discrimination part 11. A signal SOS to be outputted is selected by the switch 7. Systems of signals SIN, SREC, and SOS are displayed on a system display part 14a. A signal PB from the head part 15 is supplied to the processing part 10 and has the system discriminated, and a signal SPB is supplied to switches 5 and 7. The signal SPB is selected by the switch 5 and is supplied to the conversion part 8. The signal whose system is converted is supplied to the switch 7. The signal SOS to be outputted is selected by the switch. Systems of signals SPB and SOS are displayed on the system display part 14a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is applicable to the NTSC system and PA.
The present invention relates to a video tape recorder capable of recording and reproducing video signals of a plurality of systems such as L system and SECAM system.

[0002]

2. Description of the Related Art In a conventional video tape recorder, a television system of a recordable and reproducible video signal is determined by one system. For example, in a video tape recorder for NTSC system, a PAL system or SECAM system video signal is used. Cannot be recorded or played. Therefore, when viewing a recorded image on a video tape recorded by a television system other than the NTSC system, the video tape is played back by a video tape recorder corresponding to the television system of this video tape, and the obtained playback video is obtained. The signal is supplied to a monitor television corresponding to the television system of the video tape to display an image.
Thus, recorded images on videotapes recorded by different television systems cannot be easily viewed. Similarly, it is not possible to easily make a recording tape of a different system from an NTSC system video signal.

Therefore, the input video signal of the video tape recorder and the reproduced video signal of the video tape are digitally processed, and the input video signal of, for example, the NTSC system is PAL.
There is known a video tape recorder capable of recording on a video tape according to the SEM system or SECAM system, or obtaining an output video signal of the NTSC system from a video tape recorded according to the PAL system or SECAM system.

[0004]

By the way, in the video tape recorder capable of converting the television system as described above, the system of the input video signal, the recording video signal, the reproduction video signal or the output video signal may be different. , It was not possible to easily confirm which method each signal was.

Therefore, the present invention provides a video tape recorder capable of easily knowing a television system of input / output video signals or recording / reproducing video signals.

[0006]

SUMMARY OF THE INVENTION A video tape recorder according to the present invention comprises a system converting means for converting a television system of a video signal, a signal discriminating means for discriminating a television system of a video signal, an input video signal or A video signal of any one of the video signals obtained by converting the television system of the input video signal by the system converting means is recorded as a recording video signal on a recording medium, and the signal recorded on the recording medium is reproduced to reproduce video. A signal recording / reproducing processing means for obtaining a signal, an input video signal, a video signal obtained by converting the television system of this input video signal by the format converting means, a reproduced video signal obtained by the signal recording / reproducing processing means, and this reproduction Any one of the video signals of the video signals obtained by converting the television system of the video signal by the system conversion means. To control the operation of the signal output means for selecting as an output video signal, the display means, the method converting means, the signal recording / reproducing processing means and the signal outputting means, and the method converting means, the signal recording / reproducing processing means and the signal outputting means. Control means for controlling the display of the display means on the basis of the operating state and the discrimination signal of the signal discrimination means, and the display means displays the television system of the input video signal, the recording video signal, the reproduction video signal and the output video signal. To do.

[0007]

According to the present invention, the display of the display means is controlled by the control means on the basis of the operating states of the system converting means, the signal recording / reproducing processing means and the signal output means and the discrimination signal of the signal discriminating means, and the input video signal and The television system of the recorded video signal, the reproduced video signal, and the output video signal is displayed on the display means.

Therefore, the system of the input video signal, the recording video signal, the reproduction video signal, or the output video signal can be easily known, and the operability can be improved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the video tape recorder according to the present invention will be described below with reference to FIG.

In FIG. 1, reference numeral 1 is a tuner section. The tuner unit 1 is connected to the terminal a of the input signal switch 4, and a video signal ST obtained by processing a television reception signal
Is supplied.

The video signal input terminals 2 and 3 are connected to the terminals b and c of the input signal switcher 4, respectively, and video signals SV1 and SV2 from an external device (not shown) via the video signal input terminals 2 and 3. Is supplied.

In the input signal switch 4, the video signal ST supplied from the tuner unit 1, the video signal SV1 supplied via the video signal input terminal 2 and the video signal input terminal 3
Any one of the video signals SV2 supplied via the is selected as the input video signal SIN.

The movable terminal of the input signal switching device 4 is connected to the terminal d of the conversion signal switching device 5, the terminal f of the REC signal switching device 6 and the terminal h of the output signal switching device 7. , H is supplied with the input video signal SIN. In addition,
The switching control of the input signal switch 4 is performed by a control signal CS1 from a microcomputer (hereinafter referred to as "microcomputer") 12.
Is based on.

The microcomputer 12 has a discrimination section 9, 1 which will be described later.
1, a key operation unit 13, an input signal switch 4, a conversion signal switch 5, a REC signal switch 6, an output signal switch 7, a method converter 8, a video signal processor 10, and an on-screen display controller 16 are connected. To be done. In the microcomputer 12, the determination signals DC and DV from the determination units 9 and 10 and the key operation unit 13
Based on the operation signal SKEY from the input signal switch 4,
The conversion signal switch 5, the REC signal switch 6, and the output signal switch 7 are switched, or the operations of the system converter 8, the video signal processor 10, and the on-screen display controller 16 are controlled.

Further, a display unit 14 is connected to the microcomputer 12, and the display unit 14 displays the operation of the video tape recorder based on the display signal SDP from the microcomputer 12. In addition, the method display unit 14 of the display unit 14
In a, a display relating to a television system such as an input video signal is performed. Here, FIG. 2 shows the configuration of the method display unit 14a. In the area a in FIG. 2, a display regarding the television system of the input video signal SIN is performed. In the areas b and c, a display regarding a television system of a recording video signal or a reproduction video signal and a display regarding a television system of an output video signal, which will be described later, are performed.

The terminal e of the conversion signal switch 5 is connected to a video signal processing unit 10 which will be described later, and the reproduced video signal SPB is supplied from the video signal processing unit 10. The converted signal switch 5 selects either the input video signal SIN or the reproduced video signal SPB. The selected video signal SBC, which is the selected signal, is supplied to the system conversion unit 8 and the determination unit 9 connected to the movable terminal of the conversion signal switch 5. The switching control of the conversion signal switch 5 is performed based on the control signal CS2 from the microcomputer 12.

In the system converter 8, the television system of the selected video signal SBC supplied based on the control signal CA from the microcomputer 12 is converted. Further, the discrimination section 9 discriminates the television system of the supplied selection video signal SBC and supplies the discrimination signal DC to the microcomputer 12. The converted video signal SD obtained by the conversion processing of the system conversion unit 8 is supplied to the terminal g of the REC signal switch 6 and the terminal k of the output signal switch 7.

The REC signal switch 6 selects either the input video signal SIN supplied from the input signal switch 4 or the converted video signal SD supplied from the format converter 8. The recording video signal S which is this selected signal
REC is supplied to the video signal processing unit 10 connected to the movable terminal of the REC signal switch 6. The switching control of the REC signal switch 6 is performed by the control signal CS from the microcomputer 12.
It is based on 3.

In the video signal processing section 10, the recording video signal SREC supplied from the REC signal switch 6 is converted into a recording signal RC. A rotary head unit 15 is connected to the video signal processing unit 10, and the recording signal RC is recorded on the video tape by the rotary head unit 15.

The reproduction signal PB of the video tape from the rotary head unit 15 is converted into a reproduction video signal SPB by the video signal processing unit 10 and supplied to the terminal e of the conversion signal switch 5 described above. Further, the video signal processing unit 10 is connected to the terminal j of the output signal switching unit 7, and the reproduced video signal SPB
Is supplied.

Further, a discriminating unit 11 is connected to the video signal processing unit 10 to discriminate the television system of the recorded video signal SREC or the reproduced video signal SPB,
The discrimination signal DV is supplied to the microcomputer 12. The operation of the video signal processing unit 10 is controlled by the control signal CB from the microcomputer 12.

In the output signal switch 7, the input signal switch 4
From the input video signal SIN supplied from the video signal processing unit 10 and the reproduced video signal SPB supplied from the video signal processing unit 10
One of the converted video signals SD supplied from the above is selected. The selected display video signal SOS is supplied to the on-screen display controller 16 connected to the movable terminal of the output signal switch 7. The switching control of the output signal switch 7 is performed based on the control signal CS4 from the microcomputer 12.

The on-screen display control section 16 generates an on-screen display signal of the television system in the same manner as the display video signal SOS supplied from the output signal switch 7 based on the on-screen control signal CD from the microcomputer 12. At the same time, it is superimposed on the display video signal SOS. By the way, this on-screen display signal is, for example, a signal for performing display related to conversion of the system. The display video signal SOS on which the on-screen display signal is superimposed is output as the output video signal SOUT to the on-screen display control unit 1.
It is supplied to an external device (not shown) (for example, a monitor TV) via a video signal output terminal 17 connected to 6.
It should be noted that the on-screen display signal is generated by the microcomputer 12 and is displayed by the on-screen display control unit 16.
Of course, it may be superimposed on the OS.

This example is configured as described above, and the operation will be described below. First, in the case where the video signal ST obtained by processing the television reception signal or the video signal SV1 or SV2 supplied to the video signal input terminals 2 and 3 is format-converted and recorded on the video tape. Describe.

When the key operation unit 13 is operated to select a desired video signal, the operation signal SKEY is supplied to the microcomputer 12 and the control signal CS1 is supplied to the input signal switch 4. In the input signal switch 4, the control signal CS
Based on 1, any one of the video signals ST, SV1 and SV2 is selected. The input video signal SIN which is the video signal selected here is converted into the conversion signal switch 5, REC.
It is supplied to the signal switch 6 and the output signal switch 7.

In the conversion signal switch 5, the input video signal SIN is selected based on the control signal CS2 from the microcomputer 12. The selected input video signal SIN is supplied to the system conversion section 8 and the discrimination section 9 as the selected video signal SBC.

The discriminating section 9 discriminates the television system of the selected video signal SBC. This discrimination signal DC is supplied to the microcomputer 12, and the television system of the selected video signal SBC, that is, the television system of the input video signal SIN selected by the input signal switch 4 is automatically displayed in the area a of the system display portion 14a. Is displayed in. For example, in the case of an NTSC input video signal SIN, "NTS
The display of "C" is automatically performed. Note that, in FIG. 2, the shaded area in the area a indicates the off state, and the same applies to the areas b and c.

Here, when the converted television system is determined by the operation of the key operation unit 13, the microcomputer 12 controls based on the operation signal SKEY from the key operation unit 13 and the determination signal DC from the determination unit 9. The signal CA is the format conversion unit 8
Is supplied to. In the system converter 8, the selected video signal SBC is converted into a desired television system video signal based on the control signal CA. The converted video signal SD which is the converted video signal is supplied to the REC signal switch 6 and the output signal switch 7.

In the REC signal switch 6, the converted video signal SD is selected based on the control signal CS3 from the microcomputer 12. The selected converted video signal SD is supplied to the video signal processing unit 10 as a recording video signal SREC and is converted into a recording signal RC. The recording signal RC is recorded on the video tape by the rotary head 15.

It should be noted that the discriminator 11 records the recording video signal SRE
The television system of C, that is, the television system of the converted video signal SD is determined, and the determination signal DV is the microcomputer 1
2 is supplied to the system display unit 14a, the television system of the converted video signal SD is displayed in the area b of the system display unit 14a. For example, when the input video signal SIN of the NTSC system is converted into the PAL system by the system conversion unit 8, the input video signal SIN converted into the PAL system is recorded on the video tape and the area b of the system display unit 14a is recorded. Is displayed as "PAL".

Here, the input video signal SIN or the television system of this input video signal SIN is converted into the system conversion unit 8
When the key operation unit 13 selects which of the video signals of the converted video signal SD converted in step 3 is to be displayed on the external monitor television, the operation signal SKEY is supplied to the microcomputer 12 and the control signal CS4 is output. It is supplied to the signal switch 7.

In the output signal switch 7, the control signal CS
Either the input video signal SIN or the converted video signal SD is selected based on 4. This selected signal is used as the display video signal SOS by the on-screen display controller 16
Is supplied to. The on-screen display control unit 16 automatically superimposes the on-screen display signal on the display video signal SOS based on the on-screen control signal CD from the microcomputer 12. For example, when the output signal switch 7 selects the NTSC input video signal SIN, the NTS
The on-screen display signal of the C method is automatically superimposed. The display video signal SOS on which the on-screen display signal is superimposed is supplied to the external monitor television as the output video signal SOUT via the video signal output terminal 17.

The television system of the display video signal SOS supplied from the output signal switch 7 to the on-screen display control unit 16 is displayed in the area c of the system display unit 14a. For example, when the NTSC system input video signal SIN is selected by the output signal switch 7, the system display section 14a
"NTSC" is displayed in area c.

Next, the case of reproducing the recorded video tape will be described. The video tape reproduction signal PB from the rotary head unit 15 is converted into a reproduction video signal SPB by the video signal processing unit 10 and supplied to the conversion signal switch 5 and the output signal switch 7. Here, the television system of the reproduced video signal SPB is discriminated by the discriminator 11, and the discrimination signal DV is supplied to the microcomputer 12 to display the television system of the reproduced video signal SPB in the region b of the system display portion 14a. To be done. For example, when a video tape recorded in the PAL system is reproduced, "PAL" is automatically displayed in the area b of the system display unit 14a.

In the conversion signal switch 5, the reproduced video signal SPB is selected based on the control signal CS2 from the microcomputer 12. The selected reproduced video signal SPB is supplied to the system conversion unit 8 and the discrimination unit 9 as the selected video signal SBC.

When the television system after conversion of the reproduced video signal SPB is determined by the operation of the key operation unit 13,
The operation signal SKEY is supplied to the microcomputer 12 and the control signal C
A is supplied to the system conversion unit 8. In the system converter 8, the selected video signal SBC is converted into a desired television system video signal based on the control signal CA. The converted video signal SD, which is the converted video signal, is supplied to the REC signal switch 6 and the output signal switch 7. Further, the discrimination section 9 discriminates the television system of the supplied selection video signal SBC and supplies the discrimination signal DC to the microcomputer 12.

When it is selected by the key operation unit 13 which of the reproduced video signal SPB or the converted video signal SD obtained by converting the television system of the reproduced video signal SPB is displayed on the external monitor television, the operation is performed. Signal SKEY
Is supplied to the microcomputer 12, and the control signal CS4 is supplied to the output signal switch 7.

In the output signal switch 7, the control signal CS
Based on 4, either the reproduced video signal SPB or the converted video signal SD is selected. This selected signal is used as the display video signal SOS by the on-screen display controller 16
And is processed in the same manner as at the time of recording. In addition,
In the area c of the system display section 14a, the television system of the signal selected by the output signal switch 7 is displayed. For example, when the output signal switch 7 selects the converted video signal SD of the NTSC system, "NTSC" is displayed in the area c of the system display portion 14a.

As described above, according to this example, the video signal output from the video tape recorder is either the input video signal SIN at the time of recording or the converted video signal SD obtained by converting the television system of the input video signal SIN. Since the selection can be made, the image at the time of recording the signals of the plurality of television systems can be easily confirmed without using a monitor television corresponding to the plurality of television systems. In addition, at the time of reproduction, it is possible to select either the reproduced video signal SPB or the converted video signal SD obtained by converting the television system of the reproduced video signal SPB. Therefore, similarly, a monitor television compatible with a plurality of television systems is used. Even without, it is possible to easily see reproduced images of a plurality of television system signals.

The on-screen display is performed by converting the input video signal SIN, the converted video signal SD obtained by converting the television system of the input video signal SIN, the reproduced video signal SPB, or the converted video signal obtained by converting the television system of the reproduced video signal SPB. Of SD, it is automatically superimposed according to the television system of the signal selected and output from the video tape recorder. For example, if the output signal switch 7 is NTS
When the C type input video signal SIN is selected and output from the video tape recorder, the on-screen display control unit 16 automatically superimposes the NTSC type on-screen display signal. When the PAL system reproduction signal SPB is output from the video tape recorder, the PAL system on-screen display signal is superimposed, and the PAL system reproduction signal SPB is converted to the NTSC system and output from the video tape recorder. In this case, an NTSC on-screen display signal is superimposed. Therefore, it is possible to easily see the image on which the on-screen display is superimposed without using a monitor television compatible with a plurality of television systems.

Further, since the system display section 14a displays the television system of the input video signal of the video tape recorder and the recording or reproducing video signal and the output video signal, the signal state can be easily grasped. Operability can be improved.

[0042]

According to the present invention, the display of the display means is controlled by the control means on the basis of the operation states of the format conversion means, the signal recording / reproducing processing means and the signal output means and the discrimination signal of the signal discrimination means, and the input is made. The television system of the video signal, the recording video signal, the reproduction video signal, and the output video signal is displayed on the display means.

Therefore, the system of the input video signal, the recording video signal, the reproduction video signal or the output video signal can be easily known, and the operability can be improved.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of a video tape recorder according to the present invention.

FIG. 2 is a diagram showing a display of a system display unit 14a.

[Explanation of symbols]

 1 Tuner section 2, 3 Video signal input terminal 4 Input signal switch 5 Converted signal switch 6 REC signal switch 7 Output signal switch 8 System converter 9, 11 Discrimination section 10 Video signal processing section 12 Microcomputer (microcomputer) 13 key operation section 14 display section 14a system display section 15 rotary head section 16 on-screen display control section 17 video signal output terminal

Claims (1)

[Claims] 1. A system converting means for converting a television system of a video signal, a signal discriminating means for discriminating a television system of a video signal, an input video signal or a television system of the input video signal is the system converting means. A signal recording / reproducing processing means for recording any video signal of the video signals obtained by the conversion as a recording video signal on a recording medium and reproducing the signal recorded on the recording medium to obtain a reproduced video signal; The video signal and the television system of this input video signal are converted by the system converting means, and the obtained video signal, the reproduced video signal obtained by the signal recording / reproducing processing means, and the television system of this reproduced video signal are the above system. One of the video signals obtained by conversion by the conversion means is selected as the output video signal. Signal output means, display means, method conversion means, signal recording / reproduction processing means, and signal output means are controlled, and operation status of the method conversion means, signal recording / reproduction processing means, and signal output means is controlled. And a control means for controlling the display of the display means based on the discrimination signal of the signal discrimination means, wherein the display means uses a television system of an input video signal, a recording video signal, a reproduction video signal and an output video signal. Video tape recorder characterized by displaying.