JPH0488769A - Television receiver - Google Patents

Abstract

PURPOSE:To execute operating processing with high safety by processing the mode forcibly to the standby state based on no key entry within a prescribed time when the state before a power failure is in the reception state. CONSTITUTION:A step 6 setting a 10min timer is set after a power ON processing step 5 is set. A step 7 is a step giving warning-display of power ON processing on a screen of a television receiver and this step is executed as soon as the step 6 is executed. A step 8 is a step counting down a timer, in which the timer set in the step 6 is counted down. A step 9 is a step discriminating whether or not the timer count is finished, and a step 10 discriminates whether or not key entry is implemented till the timer count is finished. When no key entry exists till the timer count is finished, the mode is forcibly transferred to the standby state via a power OFF processing step.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a television receiver, in particular, in which a power outage occurs and, after the power outage is restored, predetermined operation processing is performed by a microcomputer program. It's about technology.

[Prior Art] Fig. 2 is a flowchart showing the contents of the operation processing performed by a microcomputer in a conventional television receiver during a power outage. is the step of the power outage occurrence state, (3)
(4) is a step for recovering from a power outage, and (4) is a step for determining whether the power was on or off before the power outage when the power outage is restored.

(5) is a step for turning on the power when the result of the above determination step (4) is that the power is on;
After N processing step (5), step (12) in the receiving state
).

In addition, (13) is the result of the above determination step (the result of 0 is the power supply
In the step of turning off the power if it is FF,
After this power-off processing step (13), the process moves to step (14) of a standby state.

In a conventional television receiver having the above operation processing steps, for example, the reception state step (
If a power outage occurs during 1).

Since the microcomputer remembers that it was in the "power ON state before the power outage," after step (3) in the power outage recovery state, it goes through the power ON% process step) and then in the reception state step (12). will be reinstated. In addition, if the microcomputer remembers that it was in the "power OFF state before the power outage," after the power outage recovery state step (3), the power OFF processing step (13) is performed, and then the standby state step is performed. (14).

[Issue to be Solved by the Invention] Conventional television receivers are configured as described above, so if a power outage occurs while the receiver is in the reception state, the user may be unable to receive television for a long time, for example, due to going out. If the device cannot be monitored, the microcomputer remembers the "power ON state," so unless the power plug is unplugged from the outlet, the power will be turned on and the receiving state will be restored after the power is restored. Therefore, there is an unfavorable safety problem when, for example, the user forgets to unplug the power plug from the outlet when going out.

This invention was made in order to solve the above-mentioned problem, and it is possible to perform highly safe operation processing when a power outage occurs during reception, and if you are out during the power outage and the power outage is restored. An object of the present invention is to provide a television receiver that can be operated.

[#! [Means for Solving the Problem] The preview receiver according to the present invention performs processing to return to the state before the power outage after the power outage is restored, and at this time, if the state was in the receiving state before the power outage, the key is turned off within a predetermined time. The present invention is characterized in that it is configured to forcibly enter a standby state based on the absence of input.

[Effect] According to this invention, a power outage occurs during reception.

Even if the power is restored, if you are out of the house or unable to monitor the television receiver during the power outage, if there is no key input within a predetermined time from the time the power is restored, the system will be forced into standby mode. It is possible to prevent the reception state from being held for more than a certain period of time even under non-monitoring conditions.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described based on the drawings.

FIG. 1 is a flowchart showing the details of the operation processing performed by the microcomputer during a power outage in a television receiver according to an embodiment of the present invention. Since the contents of steps (14) to (14) are the same as those in the conventional example shown in FIG. 2, a detailed explanation will be omitted, and the contents of the newly added processing steps will be explained.

In the w41 diagram, (6) is a step of setting a timer for, for example, 10 minutes, and when the power outage is recovered and the power-on processing step (5) is reached, the timer is automatically set via the microcomputer. (7) is a step of displaying a warning on the screen of the television receiver that the power has been turned on, and is performed simultaneously with the timer setting step (6).

(8) is a step for counting down the timer, which counts down the timer set in the above timer setting step (6). (9) is a step for determining whether or not the timer count has ended; It is determined in step (10) whether there is any key input before the process ends. If there is no key input before the timer count ends, turn off the power.
It is forcibly shifted to the standby state through the TODO processing step (13), and if there is a key input, it is returned to the reception state step (12) through the step (11) of canceling the W blue display.

In order to perform the operation processing described in H below, the microcomputer must be equipped with a timer setting function, a warning display function, a timer countdown function, a timer count end determination function, a key input determination function, and a warning display cancellation function. Since the specific system configuration is well known, the explanation is omitted.

In the above embodiment, the main power switch is turned on even in the case of a television receiver without a main power switch. As long as it is, the same effect as above can be achieved by the same operation process.

[Effects of the Invention] As described above, according to the present invention, when a power outage occurs during reception and the power outage is restored when the user is absent,
Although the device returns to the original reception state once, if there is no key input within a predetermined period of time, the device is forcibly put into standby mode, thereby preventing the reception state from being maintained under non-monitoring conditions. I can do it. Therefore, safety can be improved, and the user can conveniently handle the television receiver.

[Brief explanation of the drawing]

Figure w41 is a flowchart showing the details of the operation processing at the time of a power outage in a television receiver according to an embodiment of the present invention, and Figure 2 is a flowchart in a conventional television receiver. Note that the same reference numerals in the figure indicate the same or equivalent processing parts.

Claims (1)

[Claims] (1) When the power outage is restored, means for determining whether the state before the power outage was in the reception state or the standby state, and if the result of the determination is the reception state, means for returning to the original state after the power outage is restored; 1. A television receiver comprising: means for forcibly switching the television receiver to a standby state if there is no key input within a predetermined period of time in a reception state.