JPS6346909Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an operation mode display device for a video tape recorder (VTR).

(b) Prior art In home VTRs, there is a use for recording alternate programs. This utilizes the fact that stationary VTRs have a tuner that allows you to
It means watching other programs on a TV receiver. The program displayed on the TV receiver is called the main program, and the program being recorded on the VTR is called the subprogram. If you can record the other program in this way, if the programs you want to watch overlap in the same time slot, you can record one of them, and you can use it for home use.
This is one of the most useful functions on a VTR.

In this mode of recording a counterprogram, the problem is erroneous operation due to user's illusion.
In other words, while recording a subprogram, the program being displayed on the TV receiver is completely unrelated, and the user forgets that he is recording the subprogram and, based on the main program, If you pause or stop recording to cut a commercial, the recorded video will be strange, and you will not be able to achieve the purpose of recording the opposite program at all.

In particular, recent VTRs have a wide range of remote control functions and can cut commercials using the remote control, making it easy for these errors to occur. This is because current VTRs display that recording is in progress, but do not specifically display that a program is being recorded.

(c) Purpose of the invention The present invention was devised in view of the above points, and its purpose is to prevent erroneous operations due to user illusions during recording of a counterprogram.

(d) Structure of the invention The present invention is an operation mode display device for a VTR characterized in that the display state of the recording display means and/or the channel selection display means is changed based on a VTR/TV switching command signal.

(e) Examples Examples of the present invention will be described below with reference to the drawings.
The figure is a circuit block diagram of the embodiment. In the figure, 1 is an antenna, 2 is a selection switch that is built into the VTR and connects the antenna output to either the VTR tuner or the TV tuner, and 3 is the VTR that creates the VTR/TV switching command signal that controls this selection switch 2. /TV switch. This changeover switch 3 is arranged on the front operation panel of the VTR.

Since the selection switch 2 is also controlled by a control signal from a system control circuit (not shown), VTR/TV switching is also possible by a remote control device.

4 is a light emitting diode (LED) which is a means for displaying the recording state; 5 is a control means connected to the cathode side of the LED, which includes a switch that is turned on by a control signal from a system control circuit. A selection switch 6 is a display state changing means for changing the light emitting state of the LED 4 based on a VTR/TV switching command signal. The selection switch 6 has a function of selecting whether to apply the +B voltage to the red light emitting LED 4R or the green light emitting LED 4G in accordance with the VTR/TV switching command signal.

Conventionally, single-emission LEDs have been used as recording display means. In contrast, in this embodiment, a two-color light emitting diode 4 is used, and for example, red light indicates normal recording, and green light indicates recording of a different program. When implementing the present invention on a conventional model, the part 7 surrounded by the broken line should be
Just replace it with an LED.

As a signal to change the display state of LED4
The reason why the VTR/TV switching command signal is used is that this signal substantially realizes the state of recording the opposite program. In other words, selection switch 2
When on the VTR side, other connection means not shown,
In conjunction with the operation of the switching means, the TV receiver receives
The program selected on the VTR channel will be displayed,
Conversely, when the antenna is on the TV side, the antenna 1 is directly connected to the TV tuner, and images from the TV tuner are displayed on the screen. Therefore, recording of the opposite program is realized when the selection switch 2 is in the recording state and the selection switch 2 is on the TV side.

In the example shown in the figure, the recording display means also displays the other program, but as another embodiment, the broken line portion 7 in the figure is a single-emission display on the channel selection display means.
It is also possible to replace it with LED. In this case, if the selection switch 6 is controlled by a signal obtained by ANDing the VTR/TV switching command signal and the recording command signal (applied to the control means 5), Depending on whether the program is being recorded or normal recording, the color of the LED light used to indicate the channel selection changes, making it easy to tell at a glance that the program is recording a different program. The above two embodiments may be adopted simultaneously. If you switch LED4 only with the VTR/TV switching command signal,
The status of the selection switch 2 on the VTR can always be known by the color of the LED for displaying the channel selection.

The above example shows a configuration that changes the LED emission color, but it is also possible to make the LED blink or
Another possible method is to superimpose some kind of display indicating that a program is being recorded on the TV screen.

(f) Effects of the invention As described above, according to the invention, it is possible to determine whether it is a normal recording or a reverse program recording based on the change in the state of the display means, thereby eliminating the risk of erroneous operation as in the past. , practical.

[Brief explanation of the drawing]

The figure is a circuit block diagram of an embodiment of the present invention. Explanation of main figure numbers, 3... VTR/TV switching command signal creation means, 4... Recording display means, 6... Display state changing means.

Claims (1)

[Scope of utility model registration request] A means for creating a VTR/TV switching command signal, a recording display means and/or a channel selection display means, and a means for changing the display state of the recording display means and/or the channel selection display means according to the command signal, 1. An operation mode display device for a video tape recorder, characterized in that a recording display means and/or a channel selection display means distinguishably display a counter program recording mode and a normal recording mode.