JPS60171836A - Calling system - Google Patents

Abstract

PURPOSE:To attain calling processing depending on the emergency and importance of a call by providing a means transmitting call importance information to a radio transmitter and a means displaying the importance to a radio receiver. CONSTITUTION:An input section 1 of a selective call transmitter is provided with a selective call information input section 1a to select a called party and a call importance information input section 1b to input the call importance information representing the emergency and importance of a calling motive. A selective call identification section 7 in a selective call receiver identifies whether or not a demodulation signal is a signal calling the said selective call receiver. Moreover, the decoded signal is inputted also to a display section 9 and the importance of the call is displayed.

Description

TECHNICAL FIELD The present invention relates to a calling system for calling a specific person whose whereabouts are unknown.

If you want to call a specific person whose whereabouts are unknown at a place, office, hospital, leisure facility, etc. h < th
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However, this public address system is a nuisance to people other than the person being called.

Therefore, a calling system that calls only specific people has emerged. In other words, a person who may receive a call carries a pocket-sized, lightweight selective call receiver, and the selective call transmitter transmits a selective call signal that can only be received by a specific selective call receiver. The selective call transmitter catches this selective call signal and outputs it as voice.

However, in the conventional calling system, calls are mainly made using a ring tone, and the called person cannot judge whether the motive for the call is urgent or important, especially if the person is engaged in work that involves human life. Those who were currently working had to respond to calls, even if they were unable to take their hands off the job they were carrying out.

Purpose An object of the present invention is to provide a calling system that eliminates the above-mentioned drawbacks of the prior art and enables call processing according to the urgency and importance of the call.

composition Hereinafter, the configuration of the present invention will be explained using one example.

FIG. 1 is a schematic block diagram illustrating a selective call transmitter according to one embodiment of the present invention.

The input unit 1 includes a selective call information input unit 1a for selecting a party without calling, and a call importance information input unit ib for inputting call importance information indicating the urgency and importance of the motive for calling. have The selection/importance signal generation unit 2 generates a signal according to the selective call information and call importance information input from the input unit 1. The radio signal converter 3 includes a carrier wave generation circuit 31, a modulation circuit 32, and a resonance circuit 33, and modulates the carrier wave generated by the carrier wave generation circuit 31 with a selective call signal and a call importance signal, Waves are added to create a wireless signal. The wireless charging (i section 4 is constituted by an antenna and emits a wireless signal n1.

FIG. 2 is a schematic block diagram illustrating a selective call receiver according to one embodiment of the present invention.

A radio signal transmitted from the selective call transmitter is received by a receiving section 5, and the signal is demodulated by a demodulating section 6. The selective call identification unit 7 decodes the demodulated signal and identifies whether the demodulated signal is a signal for calling the selective call receiver. No. 13 decoded by the selective call identification unit 7 is input to the audio output unit 8 and the display unit 9. The audio output unit 8 that receives the signal outputs a ringing tone based on the signal. Therefore, a called party carrying this call selective calling receiver can know that he or she is being called by hearing the ringing tone. Further, the decoded signal is also input to the display unit 9, and the importance of the call is displayed, so that the called party can take appropriate action according to the importance of the call.

FIG. 3 is a detailed block diagram of the selective call identification section 7 of FIG. 2. In this embodiment, a reed filter that directly utilizes the transfer characteristics of a piezoelectric vibrator using a small U-shaped tuning fork is used as the first selection element. 71 and read filter 72 a for selective call information.
72n, and read filter 73 for call importance information.
It is input to a to 73n.

The demodulated signal is passed through the read filter 72a for selective call information.
72n, the reed filters 2a to 72n resonate.

The vibrations are converted into electrical signals and detected by detectors 74a to 74n.
Detected at Each detector 74a is connected by a gate circuit 76.
By taking the logical sum of ~74n, it is possible to identify whether the selective call information received (i) is the information that calls the selective call receiver. is calling, and if the gate circuit 76 outputs the calling signal C1S, the audio signal generator 77
generates an audio signal, and the audio output section 8 outputs a ringing tone.

The read filters 72a to 72n for selective call information, or their arrangement/combination, must be unique to each selective call receiver in order to accommodate its own unique selective call information. However, this does not exclude identical selective calling receivers. In this case, multiple identical selective call receivers output ring tones in response to the same selective call information.
For example, it is effective when calling a plurality of specific people at the same time, such as when convening a meeting.

Through similar operations, the call importance information is selected by the read filters 73a to 73n, and the vibrations thereof are converted into electrical signals and detected by the detectors 75a to 75n. The above read filters 73a to 73a identify the call importance information.
73n has a one-to-one correspondence with each call importance information,
For example, the read filter 73a is configured to resonate at the frequency of the call importance information having the highest degree of importance. Further, the read filters 73a to 73n are used to identify the call importance, and the ranking of the call importance is unified among the selective call receivers, so the read filter 73a
73n may be set to exactly the same standard for each selective call receiver.

The call importance signals detected by the detectors 75a to 75n are converted into image signals according to the importance by the image signal generator 79 via the gate circuits W478a to 78n. The image signal generator 79 generates a call signal C0S and a detection 1
Goo 1-Circuit 78a to logical OR with 75a to 75n
78n, the image signal indicating the call importance is displayed on the display section 9 only when the selective call receiver is called.

Note that the call importance information displayed on the first display section 9 can be displayed in various forms such as letters, symbols, etc. Various display means may be used as the display unit 9, but since the one-select call receiver is always carried, a flat panel display such as a liquid crystal display is suitable.

In addition, in this embodiment, a tone signal method using a read filter as a selection element is adopted as a selective calling method, but other calling selection methods such as a 1-to-1 method using an active filter as a selection element may also be used. It can also be used. Further, as the call importance identification method, a method based on the amplitude of the call importance information, a method based on the phase, etc. can also be used.

Effects As described above, according to the present invention, by providing a means for displaying the importance of a call, it becomes possible to perform call processing in accordance with the urgency and importance of the call.

[Brief explanation of drawings]

FIG. 1 is a schematic block diagram of a selective call transmitter according to an embodiment of the present invention, FIG. 2 is a schematic block diagram of a selective call receiver according to an embodiment of the present invention, and FIG. 3 is a schematic block diagram of a selective call receiver according to an embodiment of the present invention. It is a block diagram of an identification part. 7: Selective call identification unit, 7I: Amplifier, 72a to 72n
, 73a-73n; lead filter, 74a-74n,
75a-75n: Detector, 76. 78n to 78a - 1~circuit, 77: Audio signal generator, 79: Image signal generator, C, S: Calling signal.

Claims (1)

[Claims] (1) A wireless transmitting device that transmits selective calling information that can be detected only by a specific receiving device, and detecting the selective calling information,
and a wireless receiving device that outputs a ring tone, the wireless transmitting device includes means for transmitting call importance information indicating the importance of the call, and the wireless receiving device has a means for transmitting call importance information indicating the importance of the call, and the wireless receiving device has means for transmitting call importance information indicating the importance of the call. A calling system characterized by providing a means for displaying the importance of a call.