JPH07123182A - Digital audible tone selection system - Google Patents

Abstract

PURPOSE:To eliminate the need for provision of a digital audible tone generating data memory for each tone by providing a digital audible tone selection memory. CONSTITUTION:A prescribed number of audible tone data are written in a digital audible tone generating data memory 4 and an external terminal equipment 8 writes an audible tone number required in the data memory 4 to a digital audible tone selection memory 5 via a central processing unit 7 and an interface 6. Thu's, an audible tone is sent from the data memory 4. When a telephone set 1 makes a call to a called party but the called party is busy, the central processing unit 7 selects a busy tone from audible tones sent from the data memory 4 via the interface 6 and connects a switch 3 and allows the user of the telephone set 1 to listen to the tone through a subscriber circuit 2. Thus, a predetermined audible tone is selected by having only to provide one kind of data memory 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic exchange, and more particularly to a digital audible sound selection system.

[0002]

2. Description of the Related Art Conventionally, in this kind of digital audible sound selection, the types of audible sounds to be written in the digital audible sound generating data memory have been limited.

[0003]

The above-mentioned conventional digital audible sound must be selected from the limited audible sounds because there is no digital audible sound selection memory.
It was necessary to create a digital audible sound generation data memory for each individual correspondence.

[0004]

A digital audible sound selection system according to the present invention comprises a digital audible sound generator data memory and a digital audible sound selection memory for selecting the digital audible sound generator data memory. A digital audible sound selection memory, a necessary digital audible sound selection signal is written from the external terminal to the digital audible sound selection memory, and the audible sound of the selected number is sent to each subscriber. To do.

[0005]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. A central processing unit 7 corresponding to the central processing unit of the electronic exchange is connected with a switch 3 for making a switching connection and a subscriber circuit 2 for controlling a telephone 1 for listening to a digital audible sound through an interface 6. Has been done. The switch 3 is also connected to a digital audible sound generating data memory 4 for selecting a digital audible sound. An audible sound selection memory 5 is connected to the digital audible sound generation data memory 4. The digital audible sound selection memory 5 selects digital audible sound data from the digital audible sound generation data memory 4. Further, an external terminal 8 for controlling the electronic exchange from outside the electronic exchange is connected to the central processing unit 7.

First, 1000 H of audible sound data is written in the digital audible sound generating data memory 4. An audible sound number required from the digital audible sound generation data memory 4 described above is written from the external terminal 8 to the digital audible sound selection memory 5 via the central processing unit 7 and the interface 6. As a result, the audible sound is transmitted from the digital audible sound generating data memory 4.

In order to make the telephone 1 hear an audible tone, for example, when the telephone 1 calls the called party, but the called party needs to hear the busy tone when the called party is busy, The processor 7 selects a busy tone from the audible tones transmitted from the digital audible tone generating data memory 4 through the interface 6, connects it to the switch 3, and causes the telephone 1 to hear it through the subscriber circuit 2.

[0009]

As described above, according to the present invention, by providing the digital audible sound generating data memory and the digital audible sound selecting memory, it is possible to create only one kind of digital audible sound generating data memory. It is not necessary to create a digital audible sound generation data memory for each individual correspondence.

[Brief description of drawings]

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

[Explanation of symbols]

 1 Telephone 2 Subscriber Circuit 3 Switch 4 Digital Audible Sound Generation Data Memory 5 Digital Audible Sound Selection Memory 6 Interface 7 Central Processing Unit 8 External Terminal

Claims (1)

[Claims] 1. A digital audible sound generator mounted on an electronic exchange, comprising: a digital audible sound generator data memory; and a digital audible sound selection memory for selecting the digital audible sound generator data memory. Then, a required digital audible sound selection signal from the digital audible sound selection memory is written from the external terminal to the digital audible sound selection memory, and the audible sound of the selected number is sent to each subscriber. Digital audible sound selection method.