JPH09261085A - Radio receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately inform a user of approaching a destination by providing a transmission means detecting the stable reception of a previously set broadcasting radio wave and informing the user of the stable reception. SOLUTION: From the control circuit 4 of a radio receiver in which the set switch of an operation part 8 is turned on, a PLL control signal received from an antenna 1 and monitoring the receiving level of the broadcasting radio wave broadcasted at the user's destination and its time is outputted to a receiving circuit 2. The monitoring of the reception level of this broadcasting radio wave and its time is continued until the broadcasting radio wave comes into a stably received state. Then the broadcasting wave of narrow audible range broadcasted at the destination is stored in advance in the memory of the radio receiver to be preset; the broadcasting radio wave received by the antenna 1 is brought to the user in voice through a receiving circuit 2, a wave detection circuit 3, an amplifier circuit 5 and a speaker 6 or an earphone 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless receiver, and more particularly, to a wireless receiver capable of presetting broadcast waves.

[0002]

2. Description of the Related Art In recent years, radio receivers such as portable radios and portable televisions have become extremely thin and miniaturized, and many people watch and use AM and FM broadcasts or television broadcasts on trains and the like. By the way, if you are enthusiastically watching the broadcast on the train, etc., or if you are taking a nap, for example, even if there is a broadcast on the train indicating that you are approaching the destination station or the arrival Could not be perceived, and there was a risk of overtaking. In particular, when watching a portable radio or a portable television with earphones, the above-mentioned fear is great. As a means to solve this, the wireless receiver is equipped with a timer set function and an alarm function such as a buzzer, preset the estimated time from reaching the destination from the current location, and sounding the buzzer at that time to the listener. There is something to inform.

However, in the case of presetting the predicted time from the current position to the destination, the predicted time from the current position to the destination needs to be calculated every time it is used. In addition, there is a possibility that an error may occur depending on the time zone of the train used, the type of limited express, the express train, or the ordinary train used.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a radio receiver which informs the user of the fact that the user is approaching the destination.

[0005]

In order to solve the above-mentioned problems, the radio receiver according to the invention of claim 1 detects the stable reception of a preset broadcast wave and informs the user of the stable reception. It is characterized by having a transmission means.

According to the second aspect of the present invention, the radio receiver is capable of receiving the first broadcast radio wave that the user is viewing and the second broadcast radio wave that is set differently from the first broadcast radio wave. And a transmission means for detecting stable reception of the second broadcast radio wave and notifying the user of the stable reception.

The operation of the above-described means is that if the radio wave broadcasted at the destination and having a narrow audible range is stored in the memory in advance in the memory and preset, the earphones or An alarm sound or voice can be emitted from the speaker, or a wireless receiver can be vibrated to notify the user accurately that the user is approaching the destination.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A portable radio, which is an example of a radio receiver in an embodiment of the present invention, will be described below with reference to FIGS.

Embodiment 1 In this embodiment, a radio receiver has a built-in receiving circuit for receiving broadcast radio waves and a detection circuit, and setting of broadcast radio waves is possible. This will be described with reference to FIGS.

FIG. 1 is a schematic front view of the wireless receiver, and FIG. 2 is a schematic block diagram of the wireless receiver. As shown in FIG. 1, the external appearance of the wireless receiver displays an antenna 1 for receiving broadcast radio waves, a speaker 6 or earphones 7 for allowing the user to hear sound, and which broadcast radio waves are being received by the user. It is roughly composed of a display unit 9 and an operation unit 8 for tuning broadcast radio waves. A tuning key 8a for tuning broadcast radio waves, a memory key 8b for storing broadcast radio waves frequently heard by a user, and a broadcast radio wave broadcast at a destination and having a narrow audible range are stored in a memory in advance in a memory in the operation unit 8. The set switch 8c is configured to set an alarm sound from an earphone or a speaker at the time of stable reception of the broadcast wave, or to set the wireless receiver itself to vibrate.

As shown in FIG. 2, the set switch 8c
From the control circuit 4 of the wireless receiver whose is turned on, a PLL control signal for monitoring the reception level and time of the broadcast radio wave received by the antenna 1 and being broadcast at the user's destination is output to the reception circuit 2. Has been done. The monitoring of the reception level of the broadcast radio wave and its time is continued until the broadcast radio wave is in a stable reception state. 1 to 3 based on the flowchart of FIG. 3 showing the operation procedure of this wireless receiver.
This will be described with reference to FIG.

FIG. 3 (a) is a flow chart showing a procedure for preliminarily storing in the memory the radio wave broadcast at the user's destination in the radio receiver. First, the tuning key 8a or 8b is used to tune the frequency of the broadcast radio wave which is broadcast at the destination and has a narrow audible range, and is displayed on the display unit 9.
Then, turning on the set switch 8c completes the preset. This preset broadcast wave is the memory key 8b
Just like the broadcast waves stored in, you only have to set it once.

Next, with reference to the flow chart of FIG. 3B, a procedure for the radio receiver having the set switch 8c turned on to inform the user that the user is approaching the destination will be described. The wireless receiver whose set switch 8c is turned on always detects the reception level of the broadcast radio wave at the destination and its time through the route of the reception circuit 2, the detection circuit 3 and the control circuit 4 shown in FIG. It is monitoring whether or not the condition has been reached. When the control circuit 4 detects stable reception of the broadcast wave broadcast at the user's destination, the power automatically turns off.
Then, the control circuit 4 outputs an alarm signal to the differential amplifier of the amplifier circuit 5. After the alarm signal is amplified by the amplifier circuit 5, an alarm sound or voice is emitted from either the speaker 6 or the earphone 7, or both the speaker 6 and the earphone 7, or the output of the differential amplifier is output from a vibration actuator (not shown). Input) and vibrate the wireless receiver itself to inform the user that the destination is approaching. If the user who perceives this alarm sound, voice, or vibration of the wireless receiver turns off the set switch 8c, the alarm sound, voice, or vibration turns off.

By using the radio receiver configured as described above, unlike the conventional radio receiver, it is not necessary to calculate the estimated time for reaching the destination from the present location every time it is used. In addition, the user can accurately know that he / she is approaching the destination, even if the time zone in which the train is used or the type of train such as the limited express, the express, or the ordinary train is different.

Second Embodiment In the second embodiment, in addition to a receiving circuit and a detection circuit for receiving a broadcast wave normally heard by a listener in a radio receiver, a broadcast wave broadcast at a user's destination is transmitted. A receiving circuit for receiving and a detection circuit are separately built in. This is shown in FIG.
This will be described with reference to FIG. Note that the schematic configuration of the external appearance of the wireless receiver is the same as in the case of referring to FIG.

FIG. 4 is a schematic block diagram of the wireless receiver, and FIG. 5 is a flowchart of a procedure for the wireless receiver having the set switch 8c turned on to inform the user that the user is approaching the destination. As shown in FIG. 4, from the control circuit 4, the first broadcast radio wave f _R received by the antenna 1 is received.
A first PLL control signal is output to the first receiving circuit 2a so that the sound is delivered to the user via the first receiving circuit 2a, the first detecting circuit 3a, the amplifying circuit 5, and the speaker 6 or the earphone 7. , A second PLL control signal is output to the second receiving circuit 2b so as to monitor the reception level and time of the second broadcast radio wave f _N received by the antenna 1 and being broadcast at the user's destination. ing.
The monitoring of the reception level of the second broadcast radio wave f _N and its time is continued until the second broadcast radio wave f _N is in a stable reception state.

Hereinafter, the operation procedure for storing in advance the broadcast radio waves broadcast at the destination of the user of this radio receiver in the memory will be described with reference to FIG. 3A in the first embodiment. Since it is the same as the above, it is omitted.

Next, referring to FIG. 4, a procedure for the radio receiver having the set switch 8d turned on to inform the user that the user is approaching the destination will be described with reference to the flowchart of FIG. The radio receiver whose set switch 8c is turned on always receives the second broadcast radio wave f _N of the destination through the route of the second receiving circuit 2b, the second detecting circuit 3b and the control circuit 4 shown in FIG. The level and its time are detected, and it is monitored whether or not stable reception is achieved. Control circuit 4
The second radio wave f _N being broadcast at the user's destination in
When stable reception of is detected, the control circuit 4 outputs an alarm signal to the differential amplifier of the amplifier circuit 5. Then, the alarm sound or sound is mixed with the sound of the first broadcast radio wave f _R to be amplified, and the sound is emitted from either one of the speaker 6 and the earphone 7 or both the speaker 6 and the earphone 7, or the output of the differential amplifier. Is input to a vibration actuator (not shown) to vibrate the wireless receiver itself to notify the user that the destination is approaching. If the user who perceives the alarm sound or voice or the vibration of the wireless receiver itself turns off the set switch 8c, the alarm sound, voice or vibration is turned off.

When the radio receiver thus constructed is used, unlike the conventional radio receiver, it is not necessary to make a calculation every time the predicted time from the present position to the destination is used. In addition, even if the user is enthusiastically watching the broadcast on the train, or if the time of use of the train or the type of train used, such as the limited express, express, or regular train, is different, the user should be aware that the user is approaching the destination. You can know exactly.

Third Embodiment In the third embodiment, a radio receiver has a pair of receiving circuits and detection circuits built therein. This will be described with reference to FIG. Note that the schematic configuration of the external appearance of the wireless receiver is the same as in the case of referring to FIG.

FIG. 6 is a schematic block diagram of the radio receiver. As shown in the figure, the first broadcast radio wave f _R received by the antenna 1 is received by the receiving circuit 2, the detecting circuit 3, and the amplifying circuit 5.
And the voice reaches the user via the speaker 6 or the earphone 7. Then, the control circuit 4 outputs to the receiving circuit 2 a PLL control signal for suspending the reception of the first broadcast radio wave f _{R for} a short time at a predetermined time interval, and the PLL control signal is broadcast at the destination of the user. The reception level of the broadcast radio wave f _N and its time are monitored. A muting control signal for muting the second broadcast radio wave f _N from the control circuit 4 between the detection circuit 3 and the amplifier circuit 5 while monitoring the reception level of the second broadcast radio wave f _N and its time. Is output to prevent the user from listening to the second broadcast radio wave f _N. It should be noted that the monitoring of the reception level of the second broadcast radio wave f _N and its time is continued until the second broadcast radio wave f _N is in a stable reception state.

The operation procedure of this radio receiver will be described below with reference to FIG. 3A in the first embodiment and the second embodiment.
Since it is the same as the case described with reference to the flowchart of FIG.

By the way, since noise is often received by a radio receiver in a train or the like, if the reception level of the second broadcast radio wave f _N and its time are monitored while this noise is present,
This can be performed without causing the user to recognize the temporary interruption of the reception of the first broadcast radio wave f _R. That is, whether or not this noise is received is monitored by the control circuit 4, and when the control circuit 4 detects the noise, the control circuit 4 tells the receiving circuit 2 from the first broadcast wave f _R to the second broadcast. A PLL control signal for switching to the radio wave f _N is output.
With such a configuration, it is not necessary to output the PLL control signal that suspends the reception of the first broadcast radio wave f _R at predetermined time intervals.

Fourth Embodiment A fourth embodiment of the present invention is a diversity circuit in which an antenna, a receiving circuit and a detection circuit are further incorporated in a pair of radio receivers so that a user can receive a broadcast wave in a better reception state. It is what constitutes. This will be described with reference to FIG. The schematic configuration of the external appearance of the wireless receiver is the first embodiment.
Since it is the same as the case of referring to FIG.

FIG. 7 is a schematic block diagram of the radio receiver. Hereinafter, the paths of the first antenna, the first reception circuit 2a, and the first detection circuit 3a are in a better reception state, and the paths of the second antenna, the second reception circuit 2b, and the second detection circuit 3b are used. The case where it has not been described will be described. The control circuit 4 outputs the first PLL control signal to the first receiving circuit 2a and the switching signal to the switch 10, so that the user can receive the first broadcast radio wave f _{R in} a better reception state. The broadcast of the first broadcast radio wave f _R can be heard via the path of the antenna, the first reception circuit 2a, and the first detection circuit 3a. Further, the control circuit 4 outputs a second PLL control signal to the unused second receiving circuit 2b to monitor the reception level of the second broadcast radio wave f _N and its time. The monitoring of the reception level of the second broadcast radio wave f _N and its time is continued until the second broadcast radio wave f _N is in a stable reception state.

The operation procedure of this radio receiver will be described below with reference to FIG. 3A in the first embodiment and the second embodiment.
Since it is the same as the case described with reference to the flowchart of FIG.

In the first to fourth embodiments, the portable radio, which is an example of the wireless receiver, has been described, but the present invention is not limited to this, and any wireless receiver such as a portable television or a portable telephone can be used. It goes without saying that it can be applied to.

[0028]

As described in detail above, according to the radio receiver of the present invention, it is not necessary to calculate every time the predicted time from the present position to the destination is used like the conventional radio receiver. Absent. In addition, even when the time of use of the train or the type of the train to be used, such as limited express, express or ordinary train, is different, it is possible to inform the user accurately that the user is approaching the destination.

[Brief description of drawings]

FIG. 1 is a schematic front view of a wireless receiver showing an embodiment to which the present invention is applied.

FIG. 2 is a schematic block diagram of a wireless receiver according to the first embodiment of the present invention.

FIG. 3 (a) is a flow chart showing a procedure of applying the present invention and presetting a radio wave broadcast at a user's destination to a wireless receiver, and FIG. FIG. 10 is a flow chart showing a procedure of notifying a user that a user is approaching a destination according to the first embodiment.

FIG. 4 is a schematic block diagram of a wireless receiver according to the second embodiment of the present invention.

FIG. 5 is a flow chart showing the second to fourth embodiments to which the present invention is applied and showing the procedure of notifying the user that the user is approaching the destination.

FIG. 6 is a schematic block diagram of a wireless receiver showing a third embodiment of the present invention.

FIG. 7 is a schematic block diagram of a wireless receiver showing a fourth embodiment of the present invention.

[Explanation of symbols]

1 ... Antenna, 1a ... 1st antenna, 1b ... 2nd antenna, 2 ... Receiving circuit, 2a ... 1st receiving circuit, 2b ...
2nd receiving circuit, 3 ... detection circuit, 3a ... 1st detection circuit, 3b ... 2nd detection circuit, 4 ... control circuit, 5 ... amplification circuit, 6 ... speaker, 7 ... earphone, 8 ... operation part, 8a ...
Tuning key, 8b ... memory key, 8c ... set switch, 9 ... display unit, 10 ... switch, f _R ... first of airwaves, f _N ... second of the airwaves

Claims (2)

[Claims] 1. A radio receiver comprising a transmission means for detecting stable reception of a preset broadcast wave and notifying a user of the stable reception. 2. A radio receiver capable of receiving a first broadcast radio wave that a user is viewing and a second broadcast radio wave set in advance, which is different from the first broadcast radio wave, A radio receiver comprising: a transmitting unit that detects stable reception of the second broadcast radio wave and notifies a user of the stable reception.