JPH0427232Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a radio broadcast inter-song monitor device that can monitor radio broadcasts between songs of a music source, and particularly relates to a radio broadcast inter-song monitor that can vary the monitoring time. Regarding equipment.

<Prior Art> A listener may wish to monitor the content of a radio broadcast while opening a music source other than the radio broadcast, such as a cassette tape or CD. Specifically, the following situations () to () can be considered.

() When receiving and playing back a radio broadcast, whether FM or AM, if the content is not what the listener likes, for example, a music program from their favorite genre, the system will switch to playing back a cassette tape or CD. It ends up. After a certain amount of time has elapsed, I switch to tuner mode and check if the content of the radio broadcast has changed.

() If a listener knows the content of a radio broadcast in advance and wants to listen to that radio broadcast, they either listen to the station until the program starts, or tune in when the broadcast time arrives, keeping an eye on the time. Perform operations.

() When listening to a live broadcast of a baseball game, etc., if the scene doesn't change and the live broadcast is not very interesting, I tend to switch to an alternative music source. However, while listening to the music source, I would like to know the progress of the live broadcast in bits and pieces.

() Traffic information repeats the same content for a predetermined period of time, so if you receive and reproduce it, you will listen to it over and over again. So cassette tapes and CDs
etc., and after a certain amount of time has passed, check whether the traffic information has changed.

<Problems to be solved by the invention> As mentioned above, in the past, the operation of switching between radio broadcasts and alternative sources was troublesome, and there were problems such as missing the radio broadcast if the user did not notice the program start time and neglected to perform the switching operation. Ta.

Further, in car audio systems, it is desirable that the operating time be short, and frequent switching operations have the problem of reducing one's concentration on driving.

From the above, the purpose of this invention is to
To provide a radio broadcast inter-song monitoring device capable of monitoring radio broadcast between songs of a music source such as a CD and variable monitoring time.

<Means for Solving the Problems> FIG. 1 is a block diagram of a radio broadcast track interval monitoring device showing an embodiment of the present invention.

1 is monitor switch, 2 is monitor timer,
3 is a radio broadcast receiving section, 4 is a cassette deck section serving as a music source, 5 is a song interval detection circuit, 6 is a signal switching circuit, 10 is a music source playback control section, 11 is a monitor control section, and 12 is a monitor time control section. , 12a is a memory (MEM), 13 is an off operation detection section, 14 is an on operation detection section, and 15 is a monitor time setting section.

<Function> When the monitor switch 1 is turned on, the music source playback control section 10 operates the signal switching circuit 6 to perform playback from the cassette deck section 4, which is the music source, instead of the radio broadcast from the reception section 3, and the monitor control section 11 operates. When the song interval detection circuit 5 detects an interval between songs of the music source, the signal switching circuit 6 is operated to monitor the radio broadcast from the receiving section 3 instead of playing the cassette deck section 4 which is the music source, and the monitor timer 2 is activated. When the measured monitor elapsed time reaches the monitor time registered in advance in the memory 12a, the monitor time control section 12 operates the signal switching circuit 6, and the cassette deck section 4 becomes the music source instead of the radio broadcast from the receiving section 3. Run the playback again,
Monitor radio broadcasts between songs of a music source.

Note that the off-operation detection section 13 detects an off-operation of the monitor switch 1 performed during the radio broadcast monitoring time, and after this off-operation, the on-operation detection section 1
When the on operation of the monitor switch 1 is detected by 4, the monitor time setting section 15 refers to the elapsed time from the start of monitoring to the time when the on operation is detected from the monitor timer 2, and stores this elapsed time in the memory 12a as a new monitor time. register. However, if the elapsed monitoring time measured by the monitor timer 2 exceeds the maximum monitoring time, the original monitoring time registered in the memory 12a is retained.

<Embodiment> FIG. 1 is a block diagram of a radio broadcast track interval monitoring device showing an embodiment of the present invention.

In the figure, reference numeral 1 denotes a monitor switch, which specifies the monitor of a desired radio broadcast. A monitor timer 2 measures the elapsed time from the start of monitoring the radio broadcast. Reference numeral 3 indicates a receiving section for receiving and reproducing radio broadcasts, and 4 indicates a cassette deck section serving as a music source, which serves as an alternative source for radio broadcasts. Reference numeral 5 denotes a song interval detection circuit, which detects the song interval of the music source reproduced by the cassette deck section 4. A signal switching circuit 6 selects either the radio broadcast from the receiving section 3 or the music source from the cassette deck section 4. 7 is an amplifier (AMP), and 8 is a speaker.

9 is a control unit that controls the overall control of the device;
It has a music source reproduction control section 10, a monitor control section 11, a monitor time control section 12, etc., which are composed of a microcomputer.

The music source playback control section 10 includes a monitor switch 1
When the signal is turned on, the signal switching circuit 6 is operated, and instead of the radio broadcast from the receiving section 3, the cassette deck section 4, which serves as a music source, performs reproduction.

When the song interval detection circuit 5 detects an interval between songs of the music source, the monitor control section 11 operates the signal switching circuit 6 to monitor the radio broadcast from the receiving section 3 instead of playing back the cassette deck section 4 serving as the music source. Execute.

The monitor time control unit 12 has a memory (MEM) 12a in which the monitor time is registered, and switches the signal when the monitor elapsed time measured by the monitor timer 2 reaches the monitor time registered in the memory 12a. The circuit 6 is operated and the receiving section 3
The reproduction of the cassette deck section 4 serving as a music source is executed again in place of the radio broadcast from.

Reference numeral 13 denotes an off-operation detection section, which detects that the monitor switch 1 is turned off during the radio broadcast monitoring time. Reference numeral 14 denotes an on-operation detection section, which detects that the monitor switch 1 is turned on after detecting an off-operation.

Reference numeral 15 denotes a monitor time setting section 15, which refers to the elapsed time from the start of monitoring to the time when the ON operation is detected from the monitor timer 2, and registers this elapsed time in the memory 12a as a new monitor time. However, if the elapsed monitoring time measured by the monitor timer 2 exceeds the maximum monitoring time, the original monitoring time registered in the memory 12a is retained without being changed. Note that the maximum monitoring time is preset in the nonvolatile area of the memory 12a, and from the viewpoint of monitoring, it is desirable that the maximum monitoring time is, for example, about 1 minute (60 seconds).

Next, the operation of the present invention shown in FIG. 1 will be explained with reference to the timing chart shown in FIG.

First, the receiving section 3 receives the frequency of the station desired by the user. The received radio broadcast passes through a signal switching circuit 6 and an amplifier 7, and is reproduced from a speaker 8. After that, if the user wishes to monitor between songs, the monitor switch 1 is turned on, and the music source playback control section 10 operates the signal switching circuit 6 to replace the radio broadcast from the receiving section 3 with the cassette deck section 4 which becomes the music source. (1st song).

Next, during playback of the cassette, when a song interval is detected by the song interval detection circuit 6, the monitor timer 2 is activated and a song interval detection signal is sent to the monitor control section 11. Then, the monitor control section 11 operates the signal switching circuit 6 so that the cassette deck section 4 becomes the music source.
Instead of reproducing the radio broadcast, the radio broadcast from the receiving section 3 is monitored. At this time, the cassette deck section 4
stops or pauses playback.

On the other hand, the monitor elapsed time measured by the monitor timer 2 is input to the monitor time control section 12. The monitor time control section 12 operates the signal switching circuit 6 when the input monitor elapsed time reaches the monitor time registered in the memory 12a, so that the cassette deck section 4 becomes the music source instead of the radio broadcast from the reception section 3. (2nd song).

Thereafter, the above operation is repeated until the monitor switch 1 is turned off. monitor switch 1
When turned off, the radio broadcast or music source being played at the time continues to be played.

FIG. 3 is a timing chart for explaining the monitoring time setting procedure according to the present invention.

First, monitor switch 1 is turned off at time _t1 during the radio broadcast monitoring time,
Next, the monitor timer ₂ measures the monitor elapsed time Tm until the monitor switch 1 is turned on again at time t2 after the turn-off operation. The monitor time setting section 15 sets the initial monitor time T.
This monitoring elapsed time Tm is then registered in the memory 12a as a new monitoring time. Although the figure shows an example of shortening the monitoring time from T to Tm, it is also possible to extend the monitoring time by delaying the timing of turning on the monitor switch 1 again. However, if the monitor elapsed time measured by the monitor timer 2 exceeds the maximum monitor time, the initial monitor time registered in the memory 12a is retained and is not changed.

In the above embodiment, a cassette was used as an example of the music source, but it may be a CD, a record, or the like. In the case of a CD, if the inter-track data is read from the TOC information, the inter-track interval can be easily detected without using the inter-track detection circuit 5 such as a music sensor.

<Effects of the Invention> According to the present invention, the music source reproduction control unit operates the signal switching circuit when the monitor switch is turned on to execute the reproduction of the music source instead of radio broadcasting;
A monitor control unit that operates a signal switching circuit to monitor radio broadcasting instead of playing the music source when the song interval detection circuit detects an interval between songs of the music source, and a monitor elapsed time measured by a monitor timer. The monitor time control section operates the signal switching circuit to start playing the music source again instead of the radio broadcast when the monitor time pre-registered in the memory is reached, so it is possible to start the radio broadcast without noticing the program start time. It is possible to prevent radio broadcasts from being missed, and the car audio system allows radio broadcasts to be automatically and repeatedly monitored with simple operations without compromising one's concentration on driving.

In addition, there is an off operation detection section that detects that the monitor switch is turned off during the monitoring time of radio broadcasting, an on operation detection section that detects that the monitor switch is turned on after this off operation, and an on operation detection section that detects that the monitor switch is turned on after the off operation. A monitor time setting section is provided that refers to the elapsed time from the monitor timer until the on-operation is detected and registers this elapsed time in the memory as a new monitor time, and the monitor time setting section sets the monitor elapsed time measured by the monitor timer. If the maximum monitor time is exceeded, the system retains the original monitor time registered in memory without changing it, so it is possible to set an appropriate monitor time and prevent unnecessarily long monitor times from being set. be able to.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a radio broadcast track interval monitoring device showing an embodiment of the present invention, Fig. 2 is a timing chart for explaining the operation of the present invention shown in Fig. 1, and Fig. 3 is a A timing chart for explaining the monitor time setting procedure according to the present invention. 1... Monitor switch, 2... Monitor timer, 3... Radio broadcast receiving section, 4... Cassette deck section serving as a music source, 5... Song interval detection circuit, 6
... Signal switching circuit, 10 ... Music source playback control section,
11...Monitor control unit, 12...Monitor time control unit, 12a...Memory (MEM), 13...
Off operation detection section, 14...On operation detection section, 15
...Monitor time setting section.

Claims (1)

[Scope of claim for utility model registration] (1) A monitor switch that specifies the monitor of the desired radio broadcast, a monitor timer that measures the elapsed time from the start of monitoring, and a music source that is an alternative source for radio broadcasts. and a signal switching circuit that selects either a radio broadcast or a music source, and when the monitor switch is turned on, the signal switching circuit is activated to play the music source instead of the radio broadcast. a music source playback control unit for executing the music source reproduction control unit; and a monitor control unit for operating the signal switching circuit to execute monitoring of radio broadcasting instead of playback of the music source when the song interval detection circuit detects an interval between songs of the music source. , a monitor time control unit that operates the signal switching circuit to once again perform playback of the music source instead of radio broadcasting when the monitor elapsed time measured by the monitor timer reaches a monitor time registered in a memory in advance; What is claimed is: 1. A radio broadcast inter-song monitoring device, characterized in that the radio broadcast is monitored between songs of a music source. (2) an off-operation detection unit that detects that the monitor switch is turned off during a radio broadcast monitoring time; an on-operation detection unit that detects that the monitor switch is turned on after detecting the off-operation; The utility model registration request further comprises: a monitor time setting section that refers to the elapsed time from the monitor timer to the time when an on-operation is detected and registers the elapsed time in the memory as a new monitor time. A device for monitoring intervals between radio broadcasts according to item 1. (3) The maximum monitor time that can be registered in the memory is determined in advance, and if the elapsed monitor time measured by the monitor timer exceeds the maximum monitor time, the initial monitor time registered in the memory is 2. A radio broadcast song interval monitoring device as set forth in claims 1 and 2 of the utility model registration claim, characterized in that the device includes a monitoring time setting section for holding the monitoring time.