JPH07143237A - Voice response device - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to improve the utilization efficiency of a voice memory and to reduce the processing load in a voice response device without the need for silent voice data transfer. [Structure] Audio data transferred from a memory 10 to a plurality of flip-flops 301 to 30n is input in parallel.
Each parallel-serial switch 201 to 20 input to 0
It is provided in series via n, and the parallel input value of the audio data is serially output to the timing switch 12. Further, a power source + E for inputting silent data is provided to the serial input 111 of the first stage of the parallel-serial switching devices 201 to 20n, and when there is no new voice data in the parallel input 100, the silent data is output to the timing switch 12. It The switching of the parallel input and serial input of the parallel-serial switching devices 201 to 20n is set by the input switching 102.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice response device for sending a message to a telephone line, such as a private branch exchange, and more particularly to parallel-serial transmission of voice data from a voice memory storing digitally recorded voice data. The present invention relates to a voice response device that converts and D / A converts and outputs a voice.

[0002]

2. Description of the Related Art A conventional voice response device is disclosed in, for example, Japanese Patent Laid-Open No. Hei 2
As described in Japanese Patent Laid-Open No. 56159, when a call is received, the line is connected and a voice is output, so that the counter starts operating. When this counter starts operating, the memory is read while the line is connected. Therefore, the voice data to be read is accumulated in the memory regardless of whether it is silent or voiced, and the reading from the memory needs to be always continuous.

[0003]

Therefore, in the prior art, it was necessary to store silent data in the memory, and the memory could not be effectively used. Also, an address pointer for reading voice data, a timing switch, a counter,
The functions of AND gate, shift register, etc. need to operate continuously even during the process of receiving a touch-tone signal from a telephone that does not output voice after an incoming call. There was a problem that it was lacking in software and miniaturization.

An object of the present invention is to improve the utilization efficiency of the voice memory and reduce the processing load without the need to transfer the silent data.

[0005]

The above object of the present invention is to:
During the period when it is not necessary to output the voice, the reading of the voice data from the memory is stopped, so that the voice data is not set to the parallel input of the parallel-serial conversion circuit, and the silence data input from the serial input is instead set. This is achieved by setting and sending it to the timing switch. Further, since the silent data is not stored in the voice memory, the purpose of improving the utilization efficiency of the voice memory can be achieved.

[0006]

The silent data is not stored in the memory, and only the voiced data is read. The reading of the audio data from the memory is stopped during the period when it is not necessary to output the audio. Therefore, the parallel-serial conversion circuit is loaded with voiced parallel data, which is serially output, and at the same time, silent data is input to the serial input. Then, the voiced data and the silent data are serially output to the timing switch. In this way, the silent data can be output from the memory without requiring a reading process.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings of an embodiment. One embodiment of the overall configuration of the voice response device is as shown in FIG.
The timing switch 8 at which 7n starts to operate has counters 71 to 7 each time a clock signal from the oscillation circuit 5 arrives.
One of n is sequentially selected and output to the address pointer 9. Counter 71 output from timing switch 8
The data of 7n are stored in the address pointer 9 and become an address for accessing the memory 10, and the audio data corresponding to the address stored in the address pointer 9 is output. The data transferred from the memory 10 is converted into serial data by the next parallel-serial conversion circuit 11, and is further sent out as voice to the station line trunks 31 to 3n at a predetermined timing by the timing switch 12.

FIG. 2 is a circuit diagram showing an embodiment of a parallel-serial conversion circuit of the voice response device according to the present invention.
This parallel-serial conversion circuit is provided as a parallel-serial conversion circuit 11 that converts the transferred parallel audio data illustrated in FIG. 1 into serial data.

In FIG. 2, 301, 302, ... 30
m and 30n are flip-flops, 201, 202, ... 2
0m and 20n are switching devices, 100 is parallel input of audio data, 111 is serial input of silent data, 102 is input switching input, and 103 is clock input, and the parallel-serial conversion circuit is configured as described above.

In the above, the audio data read from the memory 10 is added to the parallel input 100, the input switching input 102 is set to the parallel input, and the clock input 1
By adding 03, audio data is loaded into the flip-flops 301 to 30n. After that, input switching input 10
By setting 2 to the serial input and adding the clock input 103, the value 11n of the flip-flop 30m is taken into the flip-flop 30n and sent to the timing switch 12. The input value to the flip-flop 30m is 11m.
Are sequentially sent to the serial timing switch 12 via the flip-flop 30n.

On the other hand, after the audio data loaded in the flip-flop 301 is transferred to the next, a fixed value from the power source E applied to the serial input 111 of the first stage is taken in as silent data and the next flip-flop is used. These operations are repeated by the clock input 103 so that the input value 112 is taken in by the clock input 103.
All the audio data of 0 is serially output to the timing switch 12. When all the parallel data are output serially, all flip-flops 301 to 30
Silence data input to the serial input 111 of the first stage is set in n.

By the way, since only the voice data is stored in the memory 10 and the silent data is not stored, the memory 10 is not stored.
All the data transferred from is voiced data, which is loaded into the flip-flops 301 to 30n by setting the input switching 102 from the parallel input 100 to the parallel input, and the serial by setting the input switching 102 to serial. Is converted into the output to the timing switch 12. However, when the reading from the memory 10 is stopped and there is no audio data to be added to the parallel input 100, all the flip-flops 301 to 30 are set by keeping the input switch 102 set to the serial input 111.
The silence data of the serial input 111 of the first stage is set in n, and this value is output to the timing switch 12 instead of the voice data. This operation continues until reading from the memory 10 is resumed, and all bits of the audio data are set to 1
By using the data value of the serial input 111 of the stage, silent output is possible. Further, in the case of silent data, all bits may be set to the same value of logic 0 or logic 1, and a fixed value of the power supply E can be input to the serial input 111 of the first stage. Therefore, the circuit configuration is extremely simple. Can be configured.

As described above, it is possible to prevent silent data from being stored in the memory 10, and it is possible to improve the utilization efficiency of the memory by storing only voiced data. Further, it is possible to stop the reading of data from the memory during a period in which it is not necessary to output the sound, which can reduce the processing load as compared with the case of continuous reading,
The processing can be made softer and the size can be reduced.

The overall structure of the voice response device is not limited to that of the embodiment shown in FIG. 1. For example, the read circuit of the voice data from the memory 10 can set the read address, the data output time, etc. A circuit using a direct memory access DMA capable of directly transferring audio data, a circuit using a CPU, or the like can be arbitrarily used.

[0015]

As described above, according to the present invention, it is only necessary to store no voice data in the memory and to store only voiced data, which can improve the utilization efficiency of the memory. At the time of silent output, the transfer of voice data is not required, so that the processing load can be reduced and the operation of stopping voice output can be simply performed.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of a voice response device of the present invention.

FIG. 2 is a configuration diagram of a parallel-serial conversion circuit of a voice response device according to an embodiment of the present invention.

[Explanation of symbols]

10 ... Memory, 11 ... Parallel-serial conversion circuit, 1
2 ... Timing switch, 100 ... Parallel input of audio data, 102 ... Input switching input, 103 ... Clock input, 111 ... First stage serial input, 112 to 11 m,
11n ... Output of flip-flop, 301 to 30m, 3
0n ... Flip-flops, 201 to 20m, 20n ... Switching device.

Claims (2)

[Claims] 1. In a voice response device for transmitting voice data from a voice memory storing digital voice data, performing parallel-serial conversion, and D / A converting the voice output, a voice transferred from a plurality of flip-flops from the memory. Data is input to the parallel input through parallel-serial switching devices in series, and input means for inputting silent data is provided at the first serial input of the parallel-serial switching device. By setting the input switching of the flip-flops to the parallel input, the audio data transferred from the memory is loaded into the flip-flops, and the flip-flops are set by setting the input switching of the parallel-serial switch to the serial input. Audio data loaded to the first stage of the parallel-serial switch A voice response device comprising a parallel-serial conversion circuit for serially transmitting silence data input to a serial input. 2. The voice response device according to claim 1, wherein
A voice response device using a voice memory that does not store silent data in the voice memory.