JPS6032384B2 - television equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a television device having a time display function, and particularly to a television device that can selectively display the current time (current time) and a reserved time on a part of the video screen. The current time and the reserved time are displayed in different formats to make it easier to distinguish between the displayed contents.

In current television broadcasting, a signal indicating the current time is superimposed on top of the video content, but this is just the video content of the video signal itself, and the user can freely control the video content by the user's own operation. It is not possible to display the time on the clock.

That is, the time display is not a function of the television device itself. In this regard, if there is a television device having a time display function, it is extremely convenient because the user can check the current time at any time. If a timer mechanism is added to a television device having such a time display function, the timer mechanism may be used to operate the television device at the desired time selected by the timer, for example, at 7 a.m. every morning. It is very convenient if the reserved time can be displayed on the screen in the same way as the current time because the reserved time can also be confirmed. However, in this case, it is not possible for the observer to instantly and easily determine whether the time is the current time or the reserved time. The present invention takes these points into consideration and particularly facilitates the identification of the reserved time and the current time.

The television apparatus according to the present invention will be explained in detail below with reference to the drawings. In the present invention, the current time or the approximate time is displayed in a position that does not interfere with the television image, for example, in the upper right corner of the screen S, as shown in FIG.

In order to selectively display the current time or the reserved time at such a position, a circuit configuration as shown in FIG. 3 may be used, for example. In FIG. 3, reference numeral 1 indicates a video detection circuit, and the detection output is supplied to a cathode ray tube 3 through a drive circuit 2, as is well known, to display a normal television image.

In the present invention, a synthesis circuit 4 for synthesizing a television signal and a video signal related to a current time or a reserved time, which will be described later, is provided before the drive circuit 2. Reference numeral 10 indicates a video signal forming circuit corresponding to the current time and the reserved time, respectively.

As described above, this forming circuit 10 is equipped with a clock device 11 equipped with a timer, and in this example, the current time and the reserved time selected by the timer are respectively digitized and output from this clock device 11. do. And the digital output corresponding to the reserved time is always provided by this clock device 1.
Output from 1. Note that one switch SWT provided in the clock device 11 is a switch for adjusting the reserved time, and the other switch SWN is for adjusting the current time.

These switches SWT and SWN may be arranged on the top side of the television device, as shown in FIG. 2, for example. 5
T and 5N indicate their respective legitimate children.

Digital output SN corresponding to the current time and reserved time, respectively.
Since ST selects one of these outputs,
The signal is supplied to the selection circuit 12.

The selection circuit 12 includes a pair of AND circuits 13A and 1 as shown in the figure.
3B, and one of its input terminals has each output SN from earlier.
, ST are supplied, and a selection signal for selecting these outputs SN and ST is supplied to the other input terminal. In the example shown in the figure, the selection operation is performed depending on whether a predetermined DC voltage is applied to the input terminal, and the desired DC power supply terminal B+ is connected to each input terminal. At the same time, a selection switch SW, whose movable contact is grounded on one side, is interposed. That is, when the selection switch SW is on the contact N side, only the current output SN input to the AND circuit 13A is supplied to the subsequent circuit. Therefore, the reserved time is output on the contact T side. Note that this selection switch SW may be provided on the upper surface side together with the above-mentioned switches SWT and SWN, as shown in FIG.

6 indicates the legitimate child.

These switches SWT, SWN, and SW can of course be provided on the front side, and their arrangement positions are arbitrary. The selected digital output is coupled through an OR circuit 14 to a conversion circuit 15 for converting the digital output into a normal video signal as shown.

In this conversion circuit 15, a screen S as shown in FIG.
The size and shape of the time display to be displayed on the screen as well as the position on the screen to be displayed are determined. The conversion outputs S'N and S'T whose time has been converted into video signals are respectively supplied to the above-mentioned synthesis circuit 4, where they are synthesized with a normal television signal and then supplied to the cathode ray tube 3. It is something that is provided. Therefore, by supplying such video signals S'T and S'N, respectively, the positions on the screen S that do not interfere with the television image, as shown in FIG. The time is displayed in the corner of the stone as shown in the figure. In this case, the present invention further includes the following configuration to facilitate identification of the current time and the reserved time.

In the example shown in FIG. 3, only the current time is made to blink for identification.

Therefore, in this example, a pulse Ps generated every second, for example, is obtained from the clock device 11, and this is supplied as a blinking signal to the above-mentioned conversion circuit 15, thereby producing a video signal S' indicating the current time. Switching the N supply. In this case, the blinking signal supply V is related to the selection switch SW mentioned above. Therefore, an AND circuit 16 is provided before the conversion circuit 15, and a selection switch S
The blinking signal is supplied to the conversion circuit 15 only when W is switched to the contact N side. Therefore, the contact T is connected to one terminal of the AND circuit 16. By configuring the time signal forming circuit 10 in this manner, it is of course possible to selectively display either the current time or the reserved time at approximately the same desired position on the screen S by switching the selection switch SW. , the display contents can be made to blink only when the current time is displayed.

When the reserved time is displayed, AND circuit 1
6, the blinking signal is not supplied to the conversion circuit 15, so the displayed content does not blink. In this way, instead of displaying the reserved time as a fixed display, the current time is displayed blinking.
By making the display format different, it is possible to easily determine what the displayed content is.

Therefore, it is very convenient because there is no misreading. The example shown in Figure 3 is an example in which the current time and the reserved time are distinguished by blinking the time itself that displays the current time. Instead, it is of course possible to distinguish between the current time and the reserved time by, for example, blinking the dot itself for distinguishing hours and minutes in the time display shown in FIG. 1. In such a case, the video signal itself for displaying the dots may be intermittently supplied to the cathode ray tube 3 every second, for example. Moreover, even if the two are not identified by blinking in this manner, it is of course possible to identify the two.

The example shown in FIG. 4 is a case where the current time and the reserved time are distinguished by different display colors. In the example shown in the figure, the current time is shown in red and the reserved time is shown in green. This example shows a configuration example in which, in addition to the display color identification, the blinking identification shown in FIG. 3 is also included.

The embodiment shown in FIG. 4 shows a color cathode ray tube device exploring a primary color drive system, in which 18 is a luminance signal demodulation circuit, 19R
19B are respective primary color signal drive circuits, and needless to say, each of the color difference signals R-Y to B-Y is supplied to each of the primary color signal drive circuits.

In this example, after obtaining R and G primary color signals, and immediately before supplying them to the color cathode ray tube 3, synthesis circuits 4R and 4G are provided, and these are selectively adapted to correspond to the above-mentioned current time or reserved time. It supplies the video signals S'N and ST. That is, one of the combining circuits 4R is supplied with the video signal S'N corresponding to the current time, and the other combining circuit 4G is supplied with the video signal S'T corresponding to the reserved time.

Therefore, the time signal forming circuit 10 is configured as follows. The video signal S′ which is the conversion output obtained by the conversion circuit 15
... S'T is supplied to a pair of AND circuits 17R and 17G, respectively, and a desired DC voltage is applied to the other input terminal.

In this case, the DC voltage from the contact T side is applied to one AND circuit 17R, and the DC voltage from the contact N side is applied to the other gate circuit 17G. Note that the above-mentioned AND circuits 16, 17R, and 17G function as display format changing means.

With this configuration, for example, if we explain the state shown in the figure in which the current selection switch SW is switched to the contact N side, in this case, only the video signal S'N related to the current time, not the reserved time, is sent to the conversion circuit. 15 and is supplied to the synthesis circuit 4R through the AND circuit 17R, so the current time is displayed in red.

At the same time, in this example, since the AND circuit 16 is provided, the current time simultaneously flashes every second. With this configuration, it becomes extremely easy to distinguish between the current time and the reserved time. As explained above, in the present invention, it is possible not only to display the reserved time as well as the time on a part of the television image, but also to make it easier to distinguish between the two.
Video conversion circuit 15 and display format changing means 16, 17R
, 17G. If the display formats are different in this way, identification becomes extremely easy. Of course, it goes without saying that the difference in display colors, ie, the circuit without the AND circuit 16 in FIG. 4, is sufficient for practical use. It goes without saying that in this color display, each color may be displayed using signals that are complementary to each other, instead of using primary colors. Furthermore, since either the current time or the reserved time is selectively displayed, there is an effect of minimizing the interference with the television image display caused by the display of these times.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an example of the device of the present invention, FIG. 2 is a top view thereof, FIG. 3 is a system diagram showing an example of the device of the present invention, and FIG.
The figure is a system diagram similar to that of FIG. 3 showing another example. 3 is a cathode ray tube, 10' is a time signal forming circuit, 12 is a selection circuit, 15 is a time-video signal conversion circuit, and SW is a selection switch. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. A clock device with a timer and a selection switch are provided in the television device, and the clock device with a timer always outputs at least the current time and the reserved time reserved by the timer, and the selection switch A common time-to-video signal conversion circuit is provided for converting the current time or scheduled time selected by the controller into a video signal, and the video signal obtained from this conversion circuit is combined with a television signal and applied to the cathode ray tube. By this, the current time and the reserved time are selectively displayed on substantially the same part of the video screen, and a display format changing means is connected to the conversion circuit, and the display format changing means is controlled in response to the selection switch. A television device characterized in that the current time and the reserved time are displayed in different display formats.