JP2595595B2 - Radio selective call receiver - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a radio selective call receiver, and more particularly to a reporting means of the radio selective call receiver.

[Prior Art] Conventionally, alert notification means of this type of radio selective calling receiver forms a plurality of ringing patterns corresponding to a plurality of calling numbers by changing the intermittent period of the ringing. And
When a certain call number is received, a notification operation is performed with a sound pattern corresponding to the call number.

[Problems to be Solved] In the above-described reporting operation of the conventional radio selective calling receiver, call address notification is performed at the same time. For this reason, it is designed to generate a sound of 75 dBS.PL or more at a distance of 30 cm from the receiver so that it is not affected by surrounding noise, etc. in normal alerting operation, and it is designed to be relatively quiet In, the sound is quite loud.

However, since this notification operation also serves as a call address notification, the notification operation cannot be stopped until the call address can be identified.

Therefore, in the conventional notification operation, as the number of call addresses increases, the identification time of the call address also increases, and there is a problem that a loud sound is generated for many seconds.

The present invention has been made in view of such conventional problems, and an object of the present invention is to realize a radio selective calling receiver that can be used in any environment without disturbing surrounding people as much as possible. is there.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a radio selective call receiver having a plurality of individually selected call numbers, a first notifying means for notifying that a call has been made, After the end of the report by the one report means, subsequently, a second report for starting a report to notify which of the several individually selected call numbers is called by the sound pressure lower than the first report sound. Means are provided.

Next, a preferred embodiment of the present invention will be described with reference to the drawings.

FIG. 2 shows a preferred example of the radio selective calling receiver according to the present invention.

In the figure, 201 is an antenna, 202 is a radio unit, 203 is a waveform shaping circuit, 204 is a decoder, 205 is a ROM unit, 206 is a crystal oscillator, 207 is a reset switch, 208 is a speaker drive circuit, 209 is a speaker, 210 A power switch 211 indicates a battery.

The radio signal received by antenna 201 is transmitted to radio section 202
And then demodulated. The demodulated signal is converted by the waveform shaping circuit 203 into a waveform readable by the decoder 204.

In the decoder 204, a writable read-only memory (P
A comparison is made between a signal from the waveform shaping circuit 203 and its own calling number written in advance in a programmable-read only memory (PROM) 205. When they match, a sound signal is supplied to the amplifier 208 to notify the calling, and the speaker 209 is driven. A reset switch 207 stops sounding and the like. The crystal oscillator 206 is a clock generating oscillator that operates the decoder 204.

A characteristic feature of the present invention is that a sound for a notification operation is separated from a sound for notification of a call address, and after the sound for the notification operation is stopped, a sound for notification of a call address is generated. That is, a means for generating the light is provided.

FIG. 1 is a flowchart showing the operation of the receiver according to the present embodiment.

Upon receiving its own calling number (101), the radio selective calling receiver collates with the calling number of the unread call in the memory (102).

If the collation does not match, a normal notification sound of the pattern shown in FIG. 3A is generated (104).

If the collation matches, a repeat call sound of the pattern shown in FIG. 3 (2) is generated (105).

When a t-second timer is started after the sound is generated (106) and the reset switch (207) is pressed, the sound output is reduced by about 10 dB to generate an address notification sound according to FIG. 3 (3) (108). ).

If the t-second timer times out before the reset switch 207 is pressed (109), the address call is stored in the memory as an unread call (110).

When the address notification sound is generated (108), the x-second timer is started (111) and the reset switch (207) is started.
Is stopped (112) or the x-second timer times out (113), and the address notification sound is stopped (1).
14), and the process returns to the calling number detecting operation (101).

[Effects of the Invention] As described above, the present invention separates the notification sound from the address notification sound and reduces the sound output of the address notification sound so that the radio selective call receiver holder can be Even in an environment, there is an effect that the receiver can be used without disturbing surrounding people as much as possible.

[Brief description of the drawings]

FIG. 1 is a flowchart showing the operation of the receiver according to the present invention, FIG. 2 is a block circuit diagram showing an embodiment of the radio selective calling receiver according to the present invention, and FIG. It is a timing chart figure of an address notification sound. 201: Antenna 202: Radio unit 203: Waveform shaping circuit 204: Decoder 205: ROM unit 206: Crystal oscillator 207: Reset switch 208: Speaker drive circuit 209: Speaker 210: Power switch 211: Battery

Claims (1)

(57) [Claims] 1. A radio selective call receiver having a plurality of individually selected call numbers, wherein: first report means for notifying that the call has been made; and A second notification means for initiating a notification to notify which of the plurality of individually selected call numbers is called by a sound pressure lower than the first notification sound; Receiving machine.