KR0168912B1 - Media multiplexer suppressing interrupt by using bit rate allocation signal - Google Patents

Abstract

The present invention relates to a media multiplexing device that suppresses an interrupt by storing and comparing a bit rate allocation signal (BAS) code. The present invention relates to one of bit rate allocation signals (BAS) transmitted from an opposite terminal device through an ISDN. The code rate is stored inside the media multiplexing device, and the bit rate allocation signal (BAS) codes which are continuously transmitted are compared with this bit rate allocation signal (BAS) code group, and a new bit rate allocation signal (BAS) code is transmitted or transmitted. By interrupting the main control device only when there is an error in the (BAS) code, it can reduce the burden of interrupt processing of the main control device and can provide various applications. Effects that can be useful in an ISDN terminal device for providing on demand, etc. There.

Description

Media multiplexing device suppresses interrupts using bit rate allocation signals

1 is a block diagram of a media multiplexing apparatus according to the present invention.

2 is a detailed block diagram of a bit rate allocation signal (BAS) receiving processing unit according to the present invention.

3 is a detailed block diagram of a bit rate allocation signal (BAS) code register according to the present invention.

* Explanation of symbols for main parts of the drawings

11: transmitter 12: receiver

13 bit rate allocation signal receiving processing unit 14 system matching unit

21: bit rate assignment signal code register 22: bit rate assignment signal comparison unit

23: interrupt generator

31: bit rate allocation signal code register controller 32: register

The present invention relates to a media multiplexing device that suppresses an interrupt by storing and comparing a bit rate allocation signal (BAS) code. In general, in order to send media (sound, video, text data, etc.) in an integrated information communication network (ISDN) together, it is a device that multiplexes and demultiplexes the integrated information communication network frame. A media multiplexing device in an ISDN terminal device must allocate a capacity of a frame appropriately and transmit and receive a bit rate allocation signal (BAS) code to transmit each media. In this case, each terminal device must repeatedly transmit a certain number (usually 16 or less) of a bit rate allocation signal (BAS) code group, and the main control devices of the other terminal device periodically (every 20 ms) to receive and process them. The bit rate allocation signal (BAS) codes transmitted from the RAN must be read and processed.

To do this, the multiplexing device generates an interrupt to the main control device, most of which is meaningless to carry the same bit rate allocation signal (BAS) codes that are repeatedly transmitted. Since the main control devices have to handle interrupts every 20ms, there is a problem that it is difficult to provide various application services due to the burden. Accordingly, the present invention devised to solve the above problem stores a code group of bit rate allocation signals (BAS) transmitted from the opposite terminal device through an integrated information communication network (ISDN) in the media multiplexing device, and is continuously transmitted. Compare the bit rate allocation signal (BAS) codes with this bit rate allocation signal (BAS) code group to interrupt the main control unit only when a new bit rate allocation signal (BAS) code is passed or there is an error in the passed bit rate allocation signal (BAS) code. The purpose of the present invention is to provide a media multiplexing device that can reduce the interrupt processing burden of the main controller.

The present invention to achieve the above object, the transmission means for multiplexing the media data in the frame; Receiving means connected to said transmitting means for demultiplexing and separating media data from said frame; System matching means connected to said transmitting means and receiving means and matching with an external system control means; And a bit rate allocation signal (BAS) controlled by the receiving means and the system matching means to automatically store a bit rate allocation signal (BAS) code group transmitted from the opposite terminal device and subsequently receiving the bit rate allocation signal (BAS) codes. And a bit rate allocation signal (BAS) receiving processing means for generating an interrupt only when a new kind of bit rate allocation signal (BAS) code is received as compared to the code group.

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

1 is a block diagram of a media multiplexing apparatus according to the present invention, where 11 is a transmitter, 12 is a receiver, 13 is a bit rate allocation signal reception processor, and 14 is a system matching unit. Generally, a general information network terminal device having a media multiplexing function is composed of a media processing apparatus, a system control apparatus, a communication network processing apparatus, and a media multiplexing apparatus.

The media processing apparatus refers to codecs and input / output devices of media transmitted and received through an ISDN, and a media multiplexing apparatus is a device for multiplexing / demultiplexing a plurality of media into an ICT frame. In addition, the communication network processing apparatus plays a general role for the actual communication processing of the integrated information communication network (ISDN), and the system control apparatus generally controls the media processing apparatus, the media multiplexing apparatus, and the communication network processing apparatuses.

A general media multiplexing apparatus includes a transmitter 11 for multiplexing media data into a frame of a general information communication network and a receiver 12 connected to the transmitter 11 for demultiplexing and separating media data from a frame of an ICT network; It is connected to the transmitter 11 and the receiver 12, and consists of a system matching unit 14 for matching with the system control device.

The present invention adds a bit rate allocation signal (BAS) receiving processing unit 13 controlled by the receiving unit 12 and the system matching unit 13 in the media multiplexing device having the above-described configuration, and is transmitted from the opposite terminal device. A new kind of bit rate allocation signal (BAS) code is received by automatically storing the bit rate allocation signal (BAS) code group and comparing the received bit rate allocation signal (BAS) codes with this bit rate allocation signal (BAS) code group. Configure to generate an interrupt only when an erroneous bit rate allocation signal (BAS) is received.

2 is a detailed configuration diagram of a bit rate allocation signal (BAS) receiving processing section according to the present invention, where 21 is a bit rate allocation signal code register section, 22 is a bit rate assignment signal comparison section, and 23 is an interrupt generating section, respectively. The bit rate allocation signal (BAS) code register section 21 stores the first bit rate allocation signal (BAS) code group transmitted from the counterpart terminal device for the first time, and compares it with new incoming bit rate allocation signal (BAS) codes. In turn, the bit rate allocation signal (BAS) codes are output to the bit rate allocation signal comparison section 23.

The bit rate allocation code comparison section 22 performs two tasks. First, when the BAS code is received, it is checked whether the code is normal or has an error. If there is an error, the BAS code is outputted. If there is no error, the BAS code is outputted. The bit rate allocation signal (BAS) codes sequentially output from the BAS) code register section 21 and the new bit rate allocation signal BAS codes are compared to inform the interrupt generator 23 of the result.

The interrupt generator 23 receives a bit rate allocation signal BAS code error or a new bit rate allocation signal BAS code received signal from the bit rate allocation signal BAS code comparator 22 to generate an interrupt to the main control device. . That is, the interrupt may cause an error in the bit rate allocation signal (BAS) code or a new bit rate allocation signal (BAS) code that does not belong to the bit rate allocation signal (BAS) code group stored in the bit rate allocation signal (BAS) code register section 21. It is only generated when found, thus reducing the burden on the main control unit.

When a new bit rate allocation signal (BAS) code not included in the bit rate allocation signal (BAS) code group is input, the bit rate allocation signal (BAS) code register 21 must newly receive a bit rate allocation signal (BAS) code group. The same method as the bit rate allocation signal (BAS) code group input can be used.

3 is a detailed configuration diagram of a bit rate allocation signal (BAS) code register section according to the present invention, where 31 is a bit rate allocation signal code register controller and 32 is a register. The bit rate allocation signal (BAS) code register section 21 is composed of n 8 bit registers 32 (n is a natural number) and a bit rate allocation signal (BAS) code register controller 31. Since new BAS codes arrive one every 20ms, if there are m total BAS code groups, m comparisons are made every 20ms, and each time a new BAS code arrives. Outputs m bit rate allocation signal (BAS) codes in sequence.

For storage of the bit rate allocation signal (BAS) code group, the bit rate allocation signal (BAS) code register 32 is controlled by a read pointer and a write pointer. That is, the initial bit rate allocation signal (BAS) code group is sequentially stored in the bit rate allocation signal (BAS) code register 32, where the write pointer is increased by the number of bit rate allocation signal (BAS) codes. When a new bit rate allocation signal (BAS) code is input from the other side, the read pointer increases from 0 to the number of write pointers, and bit rate allocation signal (BAS) code groups are input one by one to the bit rate allocation signal (BAS) code comparison section 22. Send it.

Once the bit rate allocation signal (BAS) code group is input to the bit rate allocation signal (BAS) code register 32, the write pointer is not converted until a new bit rate allocation signal (BAS) code is received, and the read pointer is every 20 ms. Moves from 0 to the write pointer once. The present invention as described above can significantly reduce the burden of the main control device in the ISDN terminal device using a media multiplexing device, can provide a variety of applications, video conferencing / telephone, on-demand services ( There is an effect that can be usefully used in the ISDN terminal device for providing a Video on Demand (etc.).

Claims (4)

Transmission means (11) for multiplexing the media data into a frame; Receiving means (12) connected to said transmitting means (11) for demultiplexing and separating media data from said frame; System matching means (14) connected to said transmitting means (11) and receiving means (12) and matching with an external system control means; And the bit rate allocation signal (BAS) codes controlled by the transmission means 11 and the system matching means 13 to automatically store a bit rate allocation signal (BAS) code group transmitted from the opposite terminal device. Receives a bit rate allocation signal (BAS) that generates an interrupt only when a new type of bit rate allocation signal (BAS) code or a faulty bit rate allocation signal (BAS) code is received compared to the stored bit rate allocation signal (BAS) code family And a processing means (13). The bit rate allocation signal receiving processing means (13) stores the first bit rate allocation signal (BAS) code group transmitted from the counterpart terminal device first, and when a new bit rate allocation signal code is inputted, a new bit rate allocation. A bit rate allocation signal (BAS) code storing means (21) for storing a signal code and outputting the stored bit rate allocation signal code group in order to compare the stored bit rate allocation signal code group with new incoming bit rate allocation signal (BAS) codes; When the BAS code is received, it is checked whether the code is normal or has an error. If there is an error, the BAS code is outputted. If there is an error, the bit rate allocation signal code storing means is output. Bit rate allocation code comparison means (22) for comparing the bit rate allocation signal (BAS) codes sequentially outputted at (12) with the new bit rate allocation signal (BAS) codes and outputting a result; And an interrupt generating means 23 for generating an interrupt by receiving a bit rate allocation signal (BAS) code error or a new bit rate allocation signal (BAS) code reception signal transmitted from the bit rate allocation signal code comparison means 22; Media multiplexing device. 3. The bit rate allocation signal code storage means (21) according to claim 2, further comprising: a bit rate allocation signal (BAS) code register (32) for storing a bit rate allocation signal (BAS) code group; And an initial bit rate allocation signal (BAS) code group is input, the write pointer is increased by the number of bit rate allocation signal (BAS) codes, and when a new bit rate allocation signal (BAS) code is input from the other side, the read pointer is zero to the number of write pointers. Bit rate allocation code register control means 31 for controlling the bit rate allocation signal code register 32 to output bit rate allocation signal (BAS) code groups one by one to the bit rate allocation signal code comparison means 22; Media multiplexing apparatus characterized in that it comprises. 4. The apparatus of claim 3, wherein the bit rate allocation signal (BAS) code register (32); A media multiplexing device comprising n 8-bit registers (n is a natural number).