KR960003110B1 - Voice synthesis apparatus for an electronic switching system - Google Patents

Abstract

The apparatus is for synthesizing audio signals for a full electronic PABX. The apparatus includes a bus interface/controller (50) for editing audio signal output data and channel data transmitted from a call distributer, a test/monitor(80) for converting PCM audio signal into analog signal and for sending the analog signal to a handset to test a transmission function of PCM audio signal, a memory/vocoding controller(60) for generating address signal according to audio signal output data and channel data transmitted from the bus interface/controller(50), and a vocoding/clock signal distributor(70) for outputting PCM data to a call distributor and for supplying clock signal to the memory/vocoding controller(60).

Description

Voice Synthesis Device of Electronic Switching System

1 is a block diagram of a speech synthesis apparatus of a conventional electronic switchboard.

2 is a block diagram of a speech synthesis apparatus of an electronic switching system according to the present invention.

* Explanation of symbols for main parts of the drawings

50: bus matching / main controller 51: bus matching circuit

52: CPU 60: memory / vocoding control unit

62: microprocessor 63: clock receiver / divider

64: memory 70: vocoding / clock distribution

71: clock receiver / generator 72: clock divider

73: vocoding input control circuit 74: voice memory

75: bottle / serial conversion / subhighway selection section 80: test / monitor section

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic switchboard, and more particularly, to a voice synthesis apparatus of an electronic switchboard, which can extend a voice service channel and increase a voice service time.

In general, when the telephone exchange guides the telephone exchange, voice synthesis sounds are generated according to the retrieved telephone number information and transmitted through the corresponding channel to which the inquiry call is connected.

In this manner, a speech synthesis apparatus of a conventional electronic switch for use in telephone number guidance will be described with reference to FIG. As shown in FIG. 1, the conventional voice sum growth value includes a bus matching / main control unit 10, a voice generation unit 20, a channel control / memory unit 30, and a test / monitor unit 40. Is done. The bus matching / main control section 10 includes a bus matching circuit 11 and a CPU 12. The bus matching circuit 11 includes voice output information (telephone number) supplied from an automatic call distributor (ACD) of an electronic switchboard. Information) and channel information are output to the CPU 12 side, and the CPU 12 edits and outputs the audio output information and channel information supplied from the bus matching circuit 11 in units of voices. The channel control / memory section 30 is composed of a channel control circuit 31 and a memory circuit 32. The channel control circuit 31 controls the voice output channel in accordance with the channel information supplied from the CPU 12 and the memory. The circuit 32 stores a program for operating the CPU 12 and at the same time stores data generated when the CPU 12 operates. The voice generator 20 includes a voice memory 21, a channel matching circuit 22, a clock generator 23, a clock monitor 24, and a test PCM driver 25. The voice memory 21 includes a CPU ( 12, and outputs the voice data stored in the corresponding address through the channel matching circuit 22 to the automatic call splitter (CAD) side of the electronic switchboard, according to the voice output information supplied from 12 and the clock supplied from the clock generator 23. The clock monitor 24 monitors whether the clock is normally generated on the clock generator 23 and the CPU 12 side, and the test PCM driver 25 checks the audio data output from the channel matching circuit 22. A part is output to the test / monitor section 40 side. The test / monitor unit 40 includes a mode selection circuit 41, a digital / analog converter 42, and an output monitor 43. When the operator selects an arbitrary channel to monitor or test the voice output, The voice data output from the memory 21 through the channel matching circuit 22 is converted into analog voice and transmitted to the handset.

In the voice synthesizer of the conventional electronic switchboard, the CPU 12 provided in the bus matching / main control unit 10 randomly supplies channel information and voice from the automatic call splitter (ACD) of the electronic switchboard. The irregular operation of receiving output information and the periodic operation of outputting voice data from the voice memory 21 are simultaneously performed. When a large number of irregular operations occur when the CPU 12 of the speech synthesis apparatus performs periodic work, there is a possibility that a channel expansion of 128 channels or more per unit of the speech synthesis unit cannot be performed. In addition, the increase in editing recording capacity is required due to the diversification of the service, but the voice memory 21 can be accessed due to the simultaneous execution of the periodic and periodic tasks by the CPU 12 of the bus matching / main control unit 10. Since there is a limited time, the voice data of the voice memory 21 cannot be transmitted for more than 32 seconds.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a voice synthesis apparatus of an electronic switching system, which increases the voice service time while expanding more voice service channels per unit. have.

In order to achieve the above object, the present invention provides a bus matching / main control unit which receives voice output information and channel information from an automatic call splitter and edits and outputs the received voice output information and channel information in a voice recording unit; In the voice synthesis apparatus of the electronic switchboard having a test / monitor unit for converting the PCM voice data output to the automatic call splitter side into an analog signal and output to the handset side to test and monitor the normal output of the PCM voice data. A memory / vocoding control unit for outputting an upper address according to voice output information and channel information applied from the bus matching / main control unit; A vocoding / clock distribution unit for outputting PCM voice data addressed by an upper address applied from the memory / vocoding control unit and a lower address generated by the memory / vocoding control unit to the automatic call splitter and supplying an operation clock to the memory / vocoding control unit. It provides a speech synthesis device of an electrical exchanger comprising a.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of a speech synthesis apparatus of an electronic switching system according to the present invention.

As shown in FIG. 2, the speech sum growth value of the present invention is the bus matching / main control unit 50, the memory / vocoding control unit 60, the vocoding / clock distribution unit 70, and the test / monitor. It is provided with a portion (80). The bus matching / main control unit 50 is connected to the bus matching circuit 51 and the CPU 52, and the memory / vocoding control unit 60 includes the memory unit 61, the microprocessor 62, and the clock reception / minute. The main unit 63 and the memory unit 64 are connected to each other, and the vocoding / clock distribution unit 70 includes a clock receiver / generator 71, a clock divider 72, a vocoding input control circuit 73, and voice. And a memory 74 and a parallel / serial conversion / subhighway selection unit 75. The test / monitor unit 80 includes a mode selection unit 81, a channel selection / display unit 82, and a digital / analog conversion unit. And an analog output unit 84. The bus matching circuit 51 receives voice output information (telephone number information) and channel information supplied from an automatic call splitter (ACD) of an electronic switchboard and outputs them to the CPU 52 side, and the CPU 52 receives a bus matching circuit. The audio output information and the channel information supplied from (51) are edited in recording content units and output to the memory unit 61 side. At this time, the CPU 52 outputs the information from the bus matching circuit 51 to the memory unit 61 side and waits for receiving newly supplied information from the automatic call splitter ACD. The memory unit 61 includes a memory for use in the operation of the CPU 52 and a bidirectional RAM for storing information input and output between the CPU 52 and the microprocessor 62.

The microprocessor 62 reads voice output information and channel information stored in the bidirectional RAM of the memory unit 61 by the CPU 52, and decodes them by a look up table method. Is output to the memory unit 64 side. The memory unit 64 includes a memory for use in the operation of the microprocessor 62 and a bidirectional RAM for storing and transferring data input / output between the microprocessor 62 and the vocoding input control circuit 73. do. The clock receiver / splitter 63 receives a clock supplied from the clock divider 72 and supplies a clock required by the microprocessor 62 and a clock required by the memory 64. The vocoding input control circuit 73 periodically latches the upper address stored by the microprocessor 62 in the bidirectional RAM of the memory unit 64 by the clock from the clock divider 72, thereby causing the voice memory 74 to be locked. Output to the upper address stage. In addition, the clock from the clock divider 72 is supplied to the lower address end side of the audio memory 74. The voice memory 74 has a memory for storing PCM voice data and peripheral circuits for periodically selecting subhighways and channels. The upper memory and the clock divider 72 from the vocoding input control circuit 73 are provided. The PCM audio data addressed by the lower address from the output is output to the parallel / serial conversion / subhighway selector 75 side.

The parallel / serial conversion / subhighway selector 75 converts the PCM voice data supplied in parallel from the voice memory 74 in series, and converts the PCM voice data in series, through the subhighways and channels selected by the peripheral circuits of the voice memory 74. Output to the automatic call splitter (ACD) side of the. The clock receiver / generator 71 receives a clock applied from an electronic switch, and outputs a clock generated to the clock divider 72. The clock divider 72 divides the supplied clock to provide a clock receiver / divider ( 63), the vocoding input control circuit 73 and the voice memory section 74 are supplied. The test / monitor unit 80 tests and monitors whether or not the PCM audio data is normally output. The mode selector 81 sends information about the selected test mode or monitoring mode to the microprocessor 62 and the channel selection / display unit 82. To the () side.

The channel selection / display section 82 selects a channel to be monitored and tested, and displays the state so that the operator can visually confirm it. The digital / analog converter 83 converts the PCM voice data of the selected channel among the PCM voice data output from the parallel / serial conversion / subhighway selector 75 to the automatic call splitter (ACD) and converts it into an analog signal. Output to (84) side. The analog output unit 84 is a part for matching with the handset, and outputs the analog signal supplied from the digital / analog converter 83 to the handset side so that the operator can test the audio signal.

As described above, in the present invention, the CPU 52 and the microprocessor 62 divide and process irregular and periodic tasks, respectively, and the CPU 52 controls the automatic call distributor (ACD) of the electronic switchboard. Since the microprocessor 62 performs the periodic operation of receiving the channel information and the voice output information randomly supplied from the voice processor, and periodically outputs the voice data from the voice memory 74, the number of service channels Even if it increases, the load of the CPU 52 and the microprocessor 62 can be reduced, so that the voice service can be provided for more than 128 channels per voice synthesis unit. In addition, the contents of the voice edit can be changed by changing the data of the microprocessor 62, and the load on the microprocessor 62 and the CPU 52 can be reduced, so that the voice data storage capacity of the voice memory 74 can be expanded. Since the microprocessor 62 can sufficiently access the voice memory 74 via the memory unit 64 and the vocoding input control unit 73, the voice data of the voice memory 74 is output for 32 seconds or more.

Claims (3)

A bus matching / main control unit which receives voice output information and channel information from an automatic call splitter and edits and outputs the received voice output information and channel information in a voice recording unit; In the voice synthesis apparatus of the electronic switchboard having a test / monitor unit for converting the PCM voice data output to the automatic call splitter side into an analog signal and output to the handset side to test and monitor the normal output of the PCM voice data. A memory / vocoding control unit for outputting an upper address according to voice output information and channel information applied from the bus matching / main control unit; A vocoding / clock distribution unit for outputting PCM voice data addressed by an upper address applied from the memory / vocoding control unit and a lower address generated by the memory / vocoding control unit to the automatic call splitter and supplying an operation clock to the memory / vocoding control unit. Voice synthesizer of an electronic switch, characterized in that it comprises a. 2. The apparatus of claim 1, wherein the memory / vocoding controller comprises: a first memory section having a bidirectional RAM for storing voice output information and channel information supplied from the bus matching / main control section; A microprocessor for decoding the voice output information and the channel information supplied from the first memory to generate an upper address; A second memory unit including a bidirectional RAM for storing an upper address applied from the microprocessor and transferring the upper address to the vocoding / clock distribution unit, and a memory used when the microprocessor operates; And a clock receiving / splitting unit for dividing a clock applied from the vocoding / clock distribution unit and supplying an operation clock to the second memory unit and the microprocessor. 2. The apparatus of claim 1, wherein the vocoding / clock distribution unit comprises: a clock reception / generator for outputting a clock generated by receiving a clock applied from an electronic switch; A clock divider for dividing a clock applied from the clock reception generator, outputting a control clock through a second output terminal, outputting a control clock through a second output terminal, and outputting the control clock through a second output terminal; A vocoding input control circuit for periodically latching and outputting an upper address supplied from the memory / vocoding controller in accordance with a control clock supplied from a second output terminal of the clock divider; Outputs PCM voice data addressed by the upper address applied from the vocoding input control circuit and the lower address supplied from the third output terminal of the clock divider in parallel, and periodically outputs a subhighway and a channel for transmitting the PCM voice data. Voice memory to select; And a parallel / serial conversion / subhighway selection unit for converting PCM voice data applied in parallel from the voice memory in series and outputting them to the automatic call distributor through the subhighway and channel selected by the voice memory. Voice synthesizer of electronic exchange.