KR19980015113A - ANNOUNCEMENT SERVICE APPARATUS IN A SWITCHING SYSTEM IN AN ELECTRONIC EXCHANGE - Google Patents

Abstract

The present invention relates to an announcement service apparatus in an all-electronic exchange. The announcement message storage unit 156, which is a means for storing various announcement messages, is implemented as a flash memory. (First-In First-Out) l57 to output the voice data read from the flash memory in order to facilitate the guidance to the subscriber in real time while saving the guidance message due to the time difference of the reading And the manufacturing cost of the announcement apparatus can be reduced.

Description

The announcement device in the electronic exchanger

1 is a schematic block diagram of an entire electronic exchanger including an announcement apparatus according to the present invention;

FIG. 2 is a block diagram of the announcement apparatus according to the present invention; FIG.

[0002] DESCRIPTION OF REFERENCE NUMBERS

100, 200: connection switching subsystem 110: subscriber matching section

120: trunk line matching unit 130: time switch

140: local data link 150: announcement device

300: interconnect network subsystem 310,320: central data link

330: Space switch 400: Central control subsystem

151: key input unit 152:

153: A / D conversion section 154: serial /

l55: Temporary storage unit 156: Guide message storage unit

157: FIFO 158: P / S conversion unit

159:

[0001] The present invention relates to an announcement apparatus in an electronic exchanger, and more particularly, to an announcement apparatus in an exchange that can record and read an announcement message (Announcement Nessage) To an information broadcasting apparatus in an electronic exchange.

In general, an electronic switching system has a plurality of distributed access switching subsystems (ASSs), which perform most call processing functions such as subscriber registration, trunk line matching, time-sharing time slot interchanging, ) And a central control subsystem (CCS) responsible for operation and maintenance, network management, test measurement and billing, and each connection exchange subsystem or each connection exchange subsystem and a central control subsystem And an interconnection network subsystem (INS) for performing network switching, number translation, and relay routing control.

On the other hand, the announcement service in the exchanger serves Fixed Announcement and Ned Announcement.

Fixed Announcement is a basic voice service of the exchange. It is a basic voice service of the exchange. It includes a message for informing the caller of the failure of the call connection occurring during the call processing, a message related to the special service such as the absence guidance, the designated time notification, , Delayed dialing, link failure notification, outgoing call rejection guide, trunk line hookup guide, trunk line failure guide, trunk line failure guide, A guide channel congestion notification message and the like, and the editable announcement broadcast is an additional special announcement broadcast service provided at the request of the user.

1 is a schematic block diagram of an entire electronic exchanger including such a fixed announcement broadcasting apparatus, which includes a plurality of connection switching subsystems 100-200, an interconnection network subsystem 300, a central control subsystem 400 ).

The plurality of connection switching subsystems 100-200 includes a subscriber matching unit 110 to which a plurality of general telephone sets or public telephones are connected and matched, and a relay selection combining unit 110 for matching a trunk for relaying with other exchange units. The connection and disconnection of the time switch 110 and the time switch 120 and the connection of the subscriber matching unit 110 and the trunk line matching unit 120 and the local data link 140 and the announcement apparatus 150, And a time switch 130 for performing an interchange function of time slot data.

In addition, the local data link 140 performs a high-speed data link over an optical link to connect with the interconnection network subsystem 300, and the announcement device 150 may perform a call processing failure situation, And processes guidance messages related to special services such as designated time notification.

In the connection switching subsystem 100-200 having such a configuration unit, there is an unillustrated upper processor for controlling the constituent units as a whole, and the lower processors in the respective constituent units perform respective functions under the control of an upper processor, The matching with the switch 130 is performed by a PCN (Pulse Code Nodulation) sub-highway cable in which a plurality of time-divided time-slot data are contained in one frame sync with a predetermined number of channels.

Meanwhile, the interconnection network subsystem 300 performs a connection between all of the connection switching subsystems 100 and 200 connected to each other in the exchanger, performs number translation and trunk line routing, The time slot data from the central data link 310-320 via the link 140 and the local data link 140 for the fiber optic link is space-partitioned switched and the corresponding connection exchange is performed through the central data link 310-320 To the local data link 140 .. of the subsystem 100-200.

The central control subsystem 400 is connected to the interconnected network subsystem 300 and performs functions such as maintenance and billing of the exchange.

Meanwhile, the interconnection network subsystem 300 and the central control subsystem 400 also perform their functions under the control of an unillustrated upper processor, not shown, in the respective components.

The announcement apparatus 150 in the exchange having such a structure reads the related guidance message for the above-mentioned special service to the subscriber's telephone connected to the plurality of subscriber-stations 110 .. in response to the situation, And transmits the voice message to the corresponding subscriber's telephone through the voice mail server 130 .. The subscriber has a function of accepting and storing a voice message from the outside in order to modify or add the message.

On the other hand, EEPRON (Electrically Erasable and Prgrammable RON) or NVSRAN (None Volatile Static RAN) is generally used as a medium for storing related messages in the announcement apparatus in the conventional exchange, There is a problem that the manufacturing cost of the apparatus is increased.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an announcement device in an all-electronic exchanger that enables information to be stored and read using a flash memory in an entire electronic exchange, .

An announcement apparatus in an all-electronic exchanger according to the present invention is an apparatus for recording and reading a guidance message in an all-electronic exchange, and is provided with a predetermined key including a message number key and a message time key for storing a guidance message A key input unit for outputting a key signal corresponding to a key operation of the user, a control unit for controlling the guidance message and message time recording in accordance with the guidance message number based on the predetermined key signal from the key input unit, A guide broadcast control unit for reading out the corresponding announcement message and the message time of the message number corresponding to the signal and outputting the corresponding announcement message and the message time for the message time read out to the corresponding time slot channel, An A / D converter for converting the digital voice data into digital voice data, Parallel conversion section for converting the digital audio data from the A / D conversion section into parallel audio data of a predetermined bit on the basis of the control of the broadcast control section and outputting the parallel audio data, A temporary storage unit for temporarily storing / reading voice data from the conversion unit; a guidance message storage unit for storing voice data from the temporary storage unit together with message numbers and message time from the announcement control unit and reading the voice data; In-First-Out (FIF) for sequentially inputting and outputting audio data from the guide message storage unit under the control of the announcement control unit; and a control unit for controlling, based on the control of the announcement control unit, Serial conversion section for converting the serial / parallel conversion data into serial voice data and outputting the serial voice data; And an output unit for outputting the voice data from the serial conversion unit to the corresponding time slot channel.

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

2 is a block diagram of the announcement apparatus according to the present invention and includes a key input unit 151, an announcement control unit 152, an A / D conversion unit 153, a S / P conversion unit 154, An instruction message storage unit 156, an FlFO 157, a bottle / serial conversion unit 158, and an output unit 159.

In the figure, the key input unit 151 includes a predetermined number of keys including a message number key, a message time key, and the like in order to modify or additionally store a guidance message used in the exchange, And outputs a key signal.

The announcement control unit 152 controls the announcement message and the time recording corresponding to the guidance message number based on the message number key and the message time key signal from the key input unit 115, Based on the guidance service control signal of the mobile communication terminal, the message message and the message time corresponding to the message number, and outputs the same as the message time read to the corresponding channel.

The A / D conversion unit 153 PCN-modulates the analog voice signal reproduced from the microphone or the cassette tape under the control of the announcement control unit 152 with digital voice data.

On the other hand, the serial-to-parallel converter 154 converts the digital voice data from the A / D converter 153 into parallel voice data of predetermined bits on the basis of the control from the announcement control unit 152 and outputs the parallel voice data.

The temporary storage unit 155 temporarily stores and reads voice data from the serial / parallel conversion unit 154 under the control of the announcement control unit 152. [

The guidance message storage unit 155 stores and reads the voice data from the temporary storage unit 155 together with the message time corresponding to the message number from the announcement control unit 152 and is implemented as a flash memory do.

On the other hand, the first-in first-out (FIFO) 157 is a first-in first-out apparatus that sequentially stores and reads voice data from the guidance message storage unit 156 under the control of the announcement control unit 152 Output speed difference of the flash memory of the guidance message storage unit 156. [0064]

The flash memory takes a relatively long time to read the writing time, and therefore uses the FIFO 157 to enable the announcement to be performed even while the voice message is being stored.

The P / S converter 158 converts the voice data from the FIFO 157 into serial voice data under the control of the announcement control unit 152 and outputs the serial voice data.

Finally, the output unit 159 outputs the audio data of Butty to the parallel / serial conversion unit 158 based on the frame sync signal from the time switch 130 and the reference clock signal under the control of the announcement control unit 152 To the corresponding time slot channel.

Next, the operation process of the present invention including the above-described components will be described in detail.

First, the operator inputs the number of the guidance message to be stored and the playback time of the message using the message number key of the key input unit 151 and the message time.

Then, a guide message is input through the microphone to the input terminal of the A / D conversion unit 153, or the cassette tape is reproduced to input the guidance message.

Then, the guidance message voice inputted under the control of the announcement control section 152 is modulated into digital voice data in the A / D conversion section 153 and outputted, and the serial / parallel conversion section 154 again outputs the predetermined bit 8 bits) of parallel audio data.

Next, the parallel voice data is temporarily stored in the strict storage unit 155 under the control of the announcement control unit 152, and is read and applied to the guidance message storage unit 156. [

Next, the guidance message storage unit 156 stores the parallel voice data from the temporary storage unit 155 at the corresponding position based on the control from the guidance broadcast control unit 152, and also stores the parallel voice data from the announcement control unit 152 The message time is also stored together.

Meanwhile, when the guide messages are stored in the guide message storage unit 155 for each type, the exchange transmits a corresponding announcement message to the corresponding subscriber's phone according to the situation to perform announcement broadcasting. .

First, the announcement control unit 152 reads a guidance message based on the control of an upper processor (not shown). First, the guide message control unit 152 controls the guidance message storage unit 165 to read the guidance message.

The FIFO 157 is a first-in first-out (FIFO) apparatus. Since the guide message storage unit 156 is implemented as a flash memory and is characterized by the flash memory, It controls the input / output under the control of the announcement control unit 152 in order to perform the announcement service even when the guide message storage unit 155 is performing the store operation.

On the other hand, the parallel voice data read out from the FIFO 157 is converted into serial voice data in the parallel / serial converter 158 and then applied to the output unit 159 again.

Next, the output unit 159 outputs the frame sync signal from the time switch 130 and the voice data from the p / s converter 157 on the basis of the reference clock signal to the corresponding The subscribers can listen to the announcement messages to the receiver of the telephone based on the time slot interchange of the time switch 130 by transmitting them to the time switch 130 via the sub highway cable.

As described above, according to the present invention, it is possible to perform the announcement service at a low manufacturing cost by using the flash memory for storing the guide message used in the entire electronic exchanger.

Claims (3)

An apparatus for recording and reading out a guidance message in an electronic exchange, comprising: a key having a message number key and a message time key for storing a guidance message and outputting a key signal corresponding to a user's key operation; And controls the message and time recording according to the guidance message number on the basis of the predetermined key signal from the key input unit 151 and outputs the corresponding message number corresponding to the guidance service control signal from the outside The announcement control unit 152 reads out the announcement message and the message time and outputs the announcement message and the message time as much as the message time read by the corresponding time slot channel, An A / D converter 153 for converting the audio data into audio data and outputting the audio data; A serial / parallel converter 154 for converting the digital audio data from the A / D-15 converter 153 into parallel audio data of a predetermined bit and outputting the parallel audio data, A temporary storage unit 155 for temporarily storing / reading audio data from the serial / parallel conversion unit 154, and a storage unit 155 for storing voice data from the temporary storage unit 155, And the message time, and a speech message storage unit 156 for reading and storing the voice data from the guidance message storage unit 156 under the control of the announcement control unit 152 An output unit 159 for outputting voice data from the bottle-and-serial conversion unit 158 to the time slot channel under the control of the announcement control unit 152, ≪ / RTI > Announcement of the device in. The announcement apparatus of claim 1, wherein the announcement message storage unit (156) comprises a flash memory. 3. The apparatus according to claim 2, wherein the speech data from the guidance message storage unit (156) is received under the control of the guidance and navigation control unit (152) and sequentially output to the bottleneck / serial conversion unit (158) And a first-in first-out (FIFO) unit 157. The announcement apparatus of claim 1,