JPH02268549A - Conference trunk - Google Patents

Abstract

PURPOSE:To performs communication among subscribers connected to a conference trunk mutually by a data signal by providing a data processing means and a storage means at the conference trunk of an electronic exchange, and a data reception means, a data accumulation means, and a data transmission means at each channel of the conference trunk. CONSTITUTION:Reception means 10-19 which receives serial data signals arriving from plural input channels 50-59 and output them after converting into parallel data, first accumulation means 20-29 which accumulate the parallel data outputted from the reception means 10-19 transiently, and the storage means 80 are provided. Also, the data processing means 70 which fetches data from the first accumulation means 20-29, stores it into the storage means 80 and generates processing data by applying a readout arithmetic operation, and second accumulation means 30-39 which receive the processing data and accumulate them transiently are provided. Furthermore, transmission means 40-49 which output the data in the second accumulation means 30-39 by converting into serial data signals and transmit them to plural output channels 60-69 are provided. In such a way, the conference trunk capable of performing data transmission can be realized.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a conference trunk used for conferencing of subscribers connected to an electronic exchange.

[Conventional technology]

Traditionally, conference trunks used for conferences between subscribers connected to an electronic exchange have multiple input and output channels, and the central processing unit of the electronic exchange pulls in each input channel and connects it to others. N-1 addition processing is performed in which the voice signals of the subscribers are added and distributed to each output channel.

Therefore, when it is desired to use data signals other than audio signals, such as nine graphic characters, in a conference, materials are distributed in advance to subscribers participating in the conference by e-mail or facsimile.

[Problem to be solved by the invention]

As mentioned above, conventional conference trunks handle only voice signals, but in recent years, the number of subscriber terminals connected to electronic exchanges has diversified, and data terminals, such as personal computers, are used to handle two graphic characters. The need to perform data signal transmission has arisen. In this case, if a conventional conference trunk is used, there is a problem in that data signals collide and data cannot be transmitted.

An object of the present invention is to provide a conference trunk capable of data transmission using data terminals as subscriber terminals of an electronic exchange.

[Means to solve the problem]

The conference trunk of the present invention includes: receiving means for receiving serial data signals arriving from a plurality of input channels, converting them into parallel data and outputting them; and first storing means for temporarily storing the parallel data outputted by the receiving means; a storage means; a data processing means for taking in the parallel data accumulated by the first storage means and storing it in the storage means; reading and processing the parallel data to create processed data; and a second data processing means for receiving and temporarily storing the processed data. and a transmitting means for converting the parallel data from the second storing means into a serial data signal and transmitting the serial data signal to a plurality of output channels.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram for explaining one embodiment of the present invention.

The conference trunk shown in FIG. 1 has ten input channels 50-59 and ten output channels 60-69 connected to a switch network (not shown) of an electronic exchange.
, data receiving circuits 10 to 19 that receive serial data signals a1 to a9 arriving from input channels 50 to 59, convert them to parallel data b1 to b9, and data storage circuits 20 to 19 that temporarily store parallel data b1 to b9. 2
9, data storage circuits 30 to 39 that temporarily store data processed by the central processing circuit 70, and data storage circuit 30.
Data transmitting circuits 40 to 49 that convert parallel data cO to c9 from 39 to serial data signals dO to d9
, a central processing circuit 70 connected to the data storage circuits 20 - 29 and 30 - 39 via a common bus 90 , and a storage circuit 80 connected to the central processing circuit 70 .

Serial data signals aO to a9, which are connected to the network of electronic exchanges and arrive from data terminals of subscribers conducting conferences via input channels 50 to 59, are sent to data receiving circuits 10 to 10, which are comprised of asynchronous serial interface controllers. Parallel data bO to b9 sent to 19
is converted to The parallel data bO-b9 are temporarily stored in data storage circuits 20-29 constituted by fast-in/fast-out memories. central processing circuit 70
stores the accumulated parallel data bo to b9 in the storage circuit 80 via the common bus 90, and performs arithmetic processing so that data signals other than its own are output to the corresponding output channels. The arithmetic processing results are sequentially sent to data storage circuits 30 to 39 composed of fast-in/fast-out memories and are temporarily stored. - The parallel data CO~c9 accumulated at the time is transmitted to the serial data signal do~d by data transmitting circuits 40~49 constituted by an asynchronous serial interface controller.
For example, the serial data signal do is converted into a serial data signal a1 to a9 other than its own serial data signal aO and sent from the output channels 60 to 69 to the data terminal of the subscriber in the conference via the switch network of the electronic exchange. A signal with the added values is sent out.

In this embodiment, the transmission of data signals using a conference trunk has been described, but audio signals are transmitted using a conventional conference trunk provided separately from the conference trunk of this embodiment.

〔Effect of the invention〕

As explained above, the present invention provides a data processing means, a storage means, and a data reception means, a data storage means, and a data transmission means for each channel of the conference trunk of an electronic exchange. Each subscriber connected to the conference trunk has the advantage of being able to communicate with each other via data signals via data terminals such as personal computers.

[Brief explanation of drawings]

FIG. 1 is a block diagram for explaining one embodiment of the present invention. 10-19... Data receiving circuit, 20-29° 30-39... Data storage circuit, 40-49.
...Data transmission circuit, 50-59...Input channel, 60-69...Output channel, 7
0... Central processing circuit, 80... Memory circuit, 90... Common bus.

Claims (1)

[Claims] a receiving means for receiving serial data signals arriving from a plurality of input channels, converting them into parallel data and outputting them; a first storing means for temporarily storing the parallel data outputted by the receiving means; a storage means; a data processing means for taking in the parallel data accumulated by the accumulation means and storing it in the storage means, reading it out and performing arithmetic processing to create processed data; a second accumulation means for receiving and temporarily accumulating the processed data; 2. A conference trunk comprising: transmitting means for converting and outputting the parallel data from the storage means of No. 2 into a serial data signal and transmitting the serial data signal to a plurality of output channels.