JPS6251839A - Radio selecting receiver - Google Patents

Abstract

PURPOSE:To reduce the possibility of the loss of a radio receiver by emitting an alarm tone to warn radio receiver carrier and lender when the carrier gets out of a service zone. CONSTITUTION:When a radio selecting receiver is lent and an active button 202 is depressed, a disable signal 103 is substituted with a start signal as a reference signal. When receiving this signal 104, a decoder part 4 sets a signal 106 flowed on a timer control line 6 to the high level. Then, a timer part 5 starts the operation. When receiving the start signal 104 again, the decoder part 4 outputs a reset signal 107 to a timer reset line 7. If the carrier gets out of the service zone, the decoder part 4 cannot receive the start signal 104 and does not output the reset signal 107 to a timer part 5. A time elapse signal 108 goes to the high level when a timer set time elapses. The decoder part 4 receives this signal to drive a ringing tone generating circuit 9, and a continuous alarm tone 109 is outputted from a speaker 10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a so-called wireless selective receiver such as a pager, and particularly to a wireless selective receiver used in a small zone.

[Conventional technology]

Conventionally, wireless selective receivers have been used as a means of communication with moving people. This kind of radio selective receiver is
It responds to an individual selection signal sent over a wireless line and notifies the carrier of the call using a ring tone or other means.

[Problem that the invention seeks to solve]

Incidentally, it is conceivable that such a radio selective receiver may be lent out for use in calling patients in a waiting room of a hospital or for calling customers at a bank counter.

In such a case, the calling zone is a small zone such as a waiting room or a store. However, with conventional wireless selective receivers, even if the carrier leaves the calling zone while carrying the wireless selective receiver, the wireless selective receiver does not respond at all, and the carrier unconsciously or intentionally takes it home and loses it. It had the disadvantage of having potential.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a wireless selective receiver that issues an alarm when the carrier moves out of the calling zone, thereby preventing the wireless selective receiver from being lost. purpose.

[Means for solving problems]

The wireless selection receiver of the present invention includes a receiving section that receives a signal transmitted from a transmitter that continuously transmits a reference signal and also transmits a paging signal at the time of paging, and a paging section in which the received paging signal is set in advance. a decoder unit that determines whether the reference signal is the same as the signal; an alarm sound generating unit that is activated when a calling signal that is the same as a preset calling signal is received; and an alarm sound generator that is activated when the reference signal is not received for a predetermined time and a driving section that drives the alarm sound generating section.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

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

An antenna 1 that receives radio waves is connected to a receiver 2 that demodulates radio signals. The output of the receiving section 2 is supplied to a decoder section 4 that decodes the received signal. The decoder section 4 compares the received signal with the selective calling number of the own station set in the selective calling number setting section 3, and if it is the calling signal of the own station, drives the ringing tone generation circuit 9 and calls from the speaker 10. generate sound.

Further, the decoder section 4 is connected to a timer section 5 as a driving section through a timer control line 6 and a timer reset line 7. A timer output line 8 connected to the timer section 5 is connected to the decoder section 4. This timer section 5 outputs a time elapsed signal to the timer output line 8 when the counted time exceeds a preset time.

FIG. 2 shows an example of a storage case that houses a radio selection receiver and also acts as a transmitter. The receiver accommodating section 201 is a part that accommodates a wireless selective receiver when the wireless selective receiver is not in use. An active button 202 and a call button 2 correspond to each receiver housing part.
03 is provided.

When renting a wireless selection receiver, press the active button 20.
2, and then press the corresponding call button 203 to call the wireless selection receiver.

The operation of this embodiment will be explained below.

FIG. 3 is a time chart showing the operation of one embodiment of the present invention. Active switch 20 in receiver storage case
When 2 is not pressed, a signal train consisting of a synchronization signal 101, a disable signal 102, and an idle signal 103 is sent out at regular time intervals. The radio selective receiver synchronizes signals with a synchronization signal 101 and detects a disable signal 102. Disable signal 102
When detected, the signal 106 flowing through the timer control line 6 becomes "0" and the timer section 5 does not operate in this state. Wireless selection receivers are lent out here.
When the active button 202 is pressed, the portion where the ≠ enable signal 103 was sent is replaced with a start signal 104 as a reference signal. Decoder section 4
When it receives this start signal 104, it sets the signal 106 flowing to the timer control line 6 to "1". This causes the timer section 5 to start operating. When the decoder section 4 receives the start signal 104 again, the decoder section 4 outputs a reset signal 107 to the timer reset line 7. Upon receiving this reset signal 107, the timer section 5 is reset and starts operating again from the beginning. As a result of the timer unit 5 being repeatedly reset by the start signal 104,
The time elapsed signal 108 flowing to the timer output line 8 is "0".
” remains.

When the call button 203 is pressed, a call signal 105 for calling the corresponding wireless selection receiver is sent instead of the idle signal 103. The decoder section 4 receives this calling signal 1.
05, it drives the ring tone generating circuit 9 and causes the speaker 10 to output an intermittent ring tone 109. This allows the carrier to know that there is a call.

Next, the operation when the carrier goes out of the service zone will be explained with reference to FIG. When the carrying person leaves the service zone, the start signal 104 is no longer received.

Therefore, from the decoder section 4 to the timer section 5 heliset signal 1
07 is no longer output, the timer section 5 continues to operate without being reset, and after a certain period of time, the time elapsed signal 108 indicating that the timer setting time has passed becomes "1".
become. The decoder section 4 receives this signal and drives the ringing tone generation circuit 9, thereby causing the speaker 10 to output a continuous alarm tone 109. This allows the carrier to be alerted to the fact that they are carrying a radio selection receiver when they leave the service zone. The renter can also know that the wireless selective receiver has left the service zone.

In the embodiment described above, the ringing tone is an intermittent alarm tone. However, instead of the alarm tone, a synthesized voice such as "When you go out, please return the ringer to the person in charge." is output. It is also possible to do so. Also,
Although the example in which the start signal is transmitted intermittently has been described, it is also possible to transmit the start signal continuously.

〔Effect of the invention〕

As explained above, the present invention gives a warning to the wireless carrier and the loaner by generating an alarm sound when leaving the service zone, thereby greatly reducing the possibility of losing the wireless receiver. It has the effect of being able to.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a perspective view showing an example of a wireless selective receiver storage case of the present invention, and FIGS. 3 and 4 are timing diagrams of an embodiment of the present invention. It is a chart. 1 ...... Antenna 2 ...... Receiving section 3 ...... Selective call number setting section 4 ...
...... Decoder section 5 ...... Timer section 6 ...... Timer control line 7 ...
・・・・・・ Timer reset line 8 ・・・・・・
... Timer output line 9 ...... Ringing tone generation circuit 10 ...... Speaker 2
01... Receiver housing section 202...
...Active button 203...
- Call button 101... Synchronization signal 102... Disable signal 103
...... Idle signal 104...
...Start signal 105... Calling signal agent Patent attorney Yoshiyuki Iwasa Figure 1 Figure 2

Claims (2)

[Claims] (1) A receiving unit that receives a signal transmitted from a transmitter that continuously transmits a reference signal and also transmits a ringing signal at the time of ringing, and whether or not the received ringing signal is the same as a preset ringing signal. a decoder section that determines a call signal, an alarm sound generation section that is activated when the same call signal as a preset call signal is received, and an alarm sound generation section that activates the alarm sound generation section when the reference signal is not received for a predetermined period of time or more. A wireless selection receiver comprising: a driving section for driving; (2) The wireless selective receiver according to claim 1, further comprising a timer that continuously transmits intermittent reference signals from the transmitter and counts time intervals of the reference signals received by the driving section.