JPS623758Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an audio timer, and particularly relates to an audio timer that displays remaining time and operation details before the timer operates.

The audio timer controls the operating time of the tuner, cassette deck, etc., and is extremely useful for operations such as recording when the user is away. In this case, the conventional audio timers that are commonly used automatically switch to the setting operation when the set time is reached, so if you forget to set the timer and listen to music, etc., there will be no warning. The problem is that the power may suddenly turn off or the source may switch when the device is not in use.

Therefore, an object of this invention is to provide an audio timer which, when the timer is about to set, switches to display the time remaining until the set time and the content of the operation. below,
The audio timer according to this invention will be explained in detail using the drawings.

FIG. 1 is a block diagram showing an embodiment of an audio timer according to this invention, in which 1 is a display section, 2 is a time data switching section,
It is controlled by the output of a display changeover switch (not shown). The time data switching section 2 displays three types: current time, timer setting time, and setting time - current time. 3 is a current time clock, 4 is a set time-current time section that calculates the remaining time until the set time by subtracting the current time from the set time, and 5 is a signal supplied from the time setting switch, that is, the timer setting time. A set time holding section 6 holds the contents to be activated when the timer is activated. 7 compares the current time and the set time, and when the two match, outputs a signal to the operation contents holding section 6. Comparison section that supplies the timer to complete the timer operation. 8 is a time offset section that automatically subtracts and holds an arbitrary hour and minute from the time signal supplied from the set time holding section 5;
Reference numeral 9 denotes an alarm generating section, for example, a buzzer is used. Reference numeral 10 denotes a comparison section 12 which compares the output of the current time clock 3 and the output of the time offset section 8, and sends a signal to the time data switching section 2, alarm generation section 9 and operation content display section 11 if the two match. is a display section that displays the operation details.

The operation of the audio timer configured as described above when setting the FM radio at 4:00 as shown in FIG. 2 will be described. First, using a time limit setting switch and an operation content setting switch (not shown), the set time holding section 5 is caused to hold data of 4:00, and the operation content holding section 6 is set to FM. When each part is set in this way, the time offset part is set for a predetermined time from 4:00, which is the operating time set in the set time holding part 5.
In this case, 3 minutes is automatically subtracted to maintain the data of 3:57. Next, when the current time clock 3 reaches 3:57 minutes, the comparator 10 sends out a coincidence output.
In this way, when a coincidence output is generated, the time data switching section 2 is activated and the set time - current time section 4 is activated.
The remaining time signal outputted from the display section 1 is supplied to display the remaining time. Further, by sending out a matching signal from the comparing section 10, the alarm generating section 9
will operate to notify you that the set time is near. Further, the operation content display section 11 operates by inputting the coincidence signal supplied from the comparison section 10, thereby causing the display section 12 to display a blinking indication of FM. Next, the current time clock 3 shows the set time of 4:00.
When this is reached, the comparator 7 sends out a coincidence output to reset the comparator 10, and at the same time activates the operation content holding unit 6 to set the function of the setting mode, that is, FM. Therefore, such operations are summarized in a table as shown in FIG. 2. Before switching to the set mode at the set time, the remaining time is displayed and the set mode is displayed. Therefore, by looking at the remaining display, the operator knows that a mode change is coming soon, and can also easily know the switching mode from the display contents, thereby preventing unexpected timer operation.

In addition, in the above explanation, the case where the display is switched to the remaining time display from 3 minutes ago was explained, but this invention is not limited to this.
It can be set arbitrarily.

As explained above, the audio timer according to this invention switches to displaying the remaining time and setting mode when the set time approaches, and this allows you to notify that the timer is about to start operating.
This has an excellent effect of preventing unexpected timer operation.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing one embodiment of an audio timer according to this invention, and Fig. 2 is a flow chart showing an example of the operation of Fig. 1. 1, 12... Display section, 2... Time data switching section, 3... Current time, 4... Set time - current time section, 5... Set time holding section, 6... Operation details holding section, 7, 10... Comparison section, 8... Time offset section, 9... Alarm generating section, 11... Operation details display section.

Claims (1)

[Scope of utility model registration request] In an audio timer, a display section that displays the current time in a normal state, a first comparison section that generates a matching output when the time reaches a predetermined time with respect to a set time, and a matching output of the first comparing section. a time data switching section that operates to switch the current time display on the display section to a remaining time display obtained by subtracting the current time from the set time; and an operation content display section that operates based on the output of the first comparator to display the setting mode. An audio timer characterized by being provided with.