JPH0522674A - Timer remaining time display device for television receiver - Google Patents

Abstract

PURPOSE:To confirm the remaining time by displaying the timer remaining time at the calling with a remote control operation and every time the remaining time becomes the prescribed time. CONSTITUTION:When a calling command of the timer remaining time is given to a timer circuit 1 by a remote control input means at any time, and every time the timer remaining time which is counted down by the timer circuit 1 becomes the prescribed time, the derived gate pulse is applied to a gate circuit 9. Accordingly, the gate circuit 9 is opened during this period, and the display information obtained from a shift register 7 is derived through the gate circuit 9 every time, then supplied to a CRT drive circuit 11 instead of a video signal temporarily via a signal changeover circuit 10. Thus, every time the timer remaining time becomes the prescribed time after setting a timer as well as the remote control operation, the timer remaining time is displayed on a picture tube screen for a short time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver having a so-called off-timer function capable of timer-setting the power-off time, and particularly, the timer remaining time is displayed on the screen of a picture tube (CRT). The present invention relates to a timer remaining time display device capable of displaying.

[0002]

2. Description of the Related Art Conventionally, in a television receiver having this kind of off-timer function, the remaining time of the timer is displayed on the picture tube screen for a fixed time only when the normal timer is set.

[0003]

Therefore, in such a receiver, even when the power-off time is set by the timer, the remaining time of the timer does not change at the time of subsequent viewing, which is the same as that of the normal viewing without setting the timer. I didn't know how much was left. In extreme cases, even though the timer was set, when the screen disappeared without realizing it, it was sometimes confused as a malfunction of the receiver.

[0004]

In order to solve the above-mentioned problems, the present invention provides a television receiver having an off-timer function capable of timer-setting the power-off time. A timer circuit means for counting down time information based on a clock pulse to obtain timer remaining time information and outputting a power-on signal while the timer remaining time is present, and a timer remaining time obtained from the timer circuit means. Display information generating means for generating time display information corresponding to the remaining time of the timer based on the quantity time information, and a timer counted down when a call command is input by remote control operation and in the timer circuit means. When the remaining time information reaches the predetermined timer remaining time information, the above table Call time display information at that time from the information generating means, is made and a call display means for supplying only the picture tube sufficiently short time compared with the predetermined timer remaining time.

[0005]

According to the television receiver having such an off-timer function, every time the remaining timer time reaches a predetermined time after setting the timer, the remaining timer time at that time is spotted for a very short time. The remaining time is displayed on the screen, and even if the remote control operation is performed at a desired time, the remaining time of the timer is spot-wise displayed on the picture tube screen for a very short time. You can easily check if there is a place left.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention, in which 1 is a timer circuit having a down counter,
In the circuit 1, preset timer setting time information is counted down every moment based on the clock pulse from the clock pulse oscillator 2. Then, while the timer remaining time is present in the timer circuit 1, that is, when the timer remaining time has some time other than 0, a power-on signal is derived from the timer circuit 1,
Based on this, the power supply on / off circuit 3 is constantly turned on and operated, and at this time, the + B voltage obtained by rectifying and smoothing the commercial power supply is derived, and thereby each circuit in the receiver is driven.

Reference numeral 4 is a ROM (read only memory)
The memory 4 stores digital display information (time display information) for displaying the remaining time of the timer on the CRT screen in advance at each address in the memory 4. A predetermined address of the memory 4 is accessed based on the timer remaining time information which changes momentarily due to the down-down, and at this time, the remaining addresses from the memory 4 are sequentially synchronized with the vertical positioning signal designated by the vertical counter 5. The time display information corresponding to the quantity time is repeatedly read. The time display information thus read is sequentially converted by the decoder 6 into serial time display information and then sent to the shift register 7. At this time, serial display information is sequentially output from the shift register 7 in synchronization with the horizontal positioning signal obtained from the horizontal counter 8 and supplied to the gate circuit 9.

Here, when a call command for the remaining timer time as shown in FIG. 2A is given to the timer circuit 1 by the remote control input means at the desired time, and after that, the timer remaining time counted down in the timer circuit 1 is counted. Each time the quantity time reaches a predetermined time, FIG.
A gate pulse of 5 seconds is derived as shown in (4) and is applied to the gate circuit 9. Therefore, the gate circuit 9 is opened only during this time, and the display information obtained from the shift register 7 at this time is derived via the gate circuit 9 each time,
This is temporarily supplied to the CRT drive circuit 11 via the signal switching circuit 10 in place of the video signal.

As a result, immediately after the remote control operation, the timer remaining time (for example, 70 minutes) at that time is displayed at the corner of the television image on the screen of the picture tube (CRT) 12. The number "70" is displayed for 5 seconds as shown in FIG. 3, and the display disappears after 5 seconds. After that, each time the remaining time of the timer reaches a predetermined time (60 minutes, 45 minutes, 30 minutes, 15 minutes, 0 minutes), the remaining time at that time is displayed on the screen for 5 seconds. That is, when the remaining time reaches 60 minutes, “60” is displayed first, and then every 15 minutes, “5” is displayed for 5 seconds.
"5", "30", "15" (minutes) are displayed, and "0" is displayed only for 5 seconds when the remaining time of the timer runs out.

Thus, when "0" is displayed on the screen for 5 seconds, the power-off signal is derived from the timer circuit 1 at that moment, and the power-on / off circuit 3 is turned off.
As shown in (c), the generation of the + B voltage of the receiver is stopped thereafter.

In the above embodiment, the remaining time is displayed on the picture screen of the picture tube for 5 seconds every 15 minutes, but these unit times can be arbitrarily set in the timer circuit 1.

[0013]

According to the present invention, in the television receiver having the off-timer function as described above, each time the timer remaining time reaches a predetermined timer remaining time, the timer remaining time at that time is displayed on the screen. Is displayed as a spot for an extremely short time, the remaining time can be checked each time, and the viewer is extremely convenient because the screen does not disappear in the middle and is confused as in the conventional case.

Furthermore, according to the present invention, when the remaining amount of the timer setting time once set becomes unknown,
You can easily check the remaining timer time on the screen by remote control operation.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a signal waveform diagram in the example.

FIG. 3 is an operation explanatory diagram of the embodiment.

[Explanation of symbols]

 1 timer circuit 2 clock pulse oscillator 3 power on / off circuit 4 memory 9 gate circuit 12 picture tube

Claims (1)

Claim: What is claimed is: 1. A television receiver having an off-timer function capable of timer-setting a power-off time, wherein a timer is provided by counting down preset timer-setting time information based on a clock pulse. Get remaining time information,
Further, while the remaining timer time is present, a timer circuit means for outputting a power-on signal, and a time display corresponding to the remaining timer time based on the remaining timer time information obtained from the timer circuit means A display information generating means for generating information, a call command inputted by a remote control operation, and the timer remaining time information counted down in the timer circuit means becomes a predetermined timer remaining time information, The display information generating means is provided with call display means for calling the time display information at that time and supplying it to the picture tube for a sufficiently short time as compared with the predetermined timer remaining time, at the time of calling by a remote control operation, and a timer. Whenever the timer remaining time after setting reaches the specified time, There timer remaining time display device of the television receiver, characterized in that appear in a short period of time the picture tube screen.