KR0143789B1 - Programmable conferencing module for ring arrays and switchable ring array networks - Google Patents

Abstract

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Description

In-conference network

1 is a schematic diagram of a conferencing network with a ring array.

2 is a schematic diagram of a programmable conference module.

3 is a general programmable conference module display.

4 is an exemplary diagram schematically showing a desired link of several conferences in one conference network.

5 is an exemplary view showing six possible states of the basic conference module.

6 shows a close ring array for a three station conference.

7 is a schematic diagram of a circuit for supplying a B ₉ output port.

8 is a (3 × 1) open ring array display.

9 is a programmable conference module state diagram for realizing a three station conference.

10 is a programmable state diagram for realizing one permutation arrangement.

11 is a programmable state diagram for the implementation of an optional permutation.

12 is a (3 × 1) ring array display.

13 shows three station conference display for use of one ring array.

14 is a permutation representation achieved as three ring arrays.

Figure 15 is an optional permutation representation using three ring arrays.

16 is a (4x2) open ring array display.

17 is a (4x2) ring array network representation.

18 is a weave array display.

19 is a realization diagram on a (4x2) ring array network.

20 is a weave array display.

21 is a (4x2) weave ring array display.

FIG. 22 is a view of the structure of the neutral (OVERLAPPING) weave array.

23 is a diagram of a conference network consisting of four ring arrays.

24 shows a conference network diagram consisting of two ring arrays and four switching stages.

25 shows a conference network diagram consisting of six switching stages and one ring array.

FIG. 26 is a diagram illustrating connection arrangement of the conference network of FIG.

FIG. 27 is a conference network representation modified to include additional stations in one conference according to the circuit network of FIG.

28 is a connection layout realized after modification is made in the conference network of FIG. 27. FIG.

* Explanation of symbols for main parts of the drawings

10: ring array 11: meeting network

12: Conference module 13: Input port

15: output port

The present invention relates to a conference module, and more particularly to a conference module that can be connected to form a conference network.

In multiple port switching networks, ports are usually connected together in pairs as transceivers.

In such a connection one port is used for example as a voice data source while the other port is used as a destination in a communication process.

These roles can be exchanged during the communication process.

There is a class of communication requests where connectivity is required more than a single port pair in that two or more groups of ports must be connected together in a conference.

Three or more ports are required in the communication process in one meeting. Any given port can be sent to all other ports in the conference multiple times. Several techniques have been developed to handle more needs of the network of a conference.

In US Patent 4,664,530 to Piet, an algorithm of an instant speaker for a digital conference bridge is disclosed.

The digital conference bridge uses multiple telephones, and the output signal of one telephone is transmitted to the other remaining telephone, and the output signal of the other telephone is suppressed.

In US Pat. No. 4,577,065 a met-me conference apparatus is disclosed.

Mitumi conference units are used in telephone exchanges.

The access code is distributed at each meeting and at agreed time.

All meetings dial the same access code for one meeting.

The switching center assigns a bridging system according to the first call to reach the switching center.

Barangai et al, US Pat. No. 4,575,845 discloses time division multiplexing.

Time-division multiplexing sequentially sums and outputs digital message samples received from n subscribers in each N time slot.

The sample of messages collected from each subscriber of one conference connection is summed over the first time range and output for the second time range.

Reed's U.S. Patent 4,339,816 discloses one conferencing device and method for use in a frequency division multiple communication system.

The conference unit uses the first effective band sideband for communication and the second sideband for signal transmission.

In that system, each subscriber has a dual transceiver and one subscriber can communicate with another subscriber.

U. S. Patent No. 4,611, 001 to Herr et al discloses a control delivery device.

The conference device has the priority of the specific speaker and the control provided to the first subscriber.

Under voice guidance, the first subscriber can transfer this control to another party during the meeting.

The problem with current conference systems is that there is a limit to the number of partners in the conference due to increased noise and breakdown of signal level control.

This onset relates to one conferencing module which, among other features, can provide the necessary combining of the information signal with the appropriate signal level control and filtering to satisfy the meeting desire.

This outbreak can be used as a design block module for the design of conference arrays and can be embedded into a multistage switch network that is not explicitly designed to allow for conferencing to provide functionality to many common facilities.

This invention relates to a conference network, wherein the conference network consists of a ring array containing K conference modules, where K is greater than or equal to 3 and is an integer.

The K conference modules can be in the desired state.

The conferencing network also includes means for controlling the ring array and the conferencing module is arranged in a desired state.

Another embodiment includes N additional ring arrays, where N is greater than or equal to 1 and is an integer.

Each ring array is connected to another ring array, and the control means controls the conference module of the ring array, so that the conference module is arranged in a desired state.

Ring arrays are connected to form a weave array.

In another embodiment, a switching stage with S switches that can be brought into the desired connection state comprises a ring array.

Where S is greater than or equal to 1 and is an integer.

In a more preferred embodiment a station having a transmit port and a receive port is connected to the ring array and the switching stage to achieve the desired conference between the stations. In alternative embodiments, an open ring array is used without or with a switch to form a conference network.

Like reference numerals refer to like or corresponding parts throughout the drawings.

In particular in FIG. 1 the conference network 11 is shown.

The conferencing network 11 is composed of a ring array 10 as a module 12 of K conferences that can be in a desired state.

Where K = 3 and an integer.

Means for controlling the ring array 10 are arranged with the module 12 in a desired state during the meeting.

During the programmable conference module 12 has 1 to N inputs 13 and 1 to N outputs 15 as shown in FIG.

The programmable conference module 12 has 1 to P functions 17 that can be applied and selected for any connection of 1 to N inputs 13.

The programmable conference module 12 also has a first controller 20 for determining that the connections of the inputs 13 have the desired functions applied to them, and also which of the 1 to M outputs 15 generates the desired function. It has a second controller 22 that determines what signal to present.

During such a programmable conference module 12 may be supplied up to (N + 1 (2 ^N − (N + 1) P) ^M states.

For example, if N and M are 3, then the state number is 512.

One state is the only output signal separated and the programmable conference module 12 can be produced according to the inputs and functions applied to them.

The input signals which generate the output signals cannot have the functions applied to them, but only as they are transmitted through the desired connection to the output port or as having one function applied to them.

Here, by way of example, the functional formula A _i , B _I is meant to include any programmable functional action performed on the signal A _i , B _I.

In many applications only a subset of all functional states can be used.

For example, in Figure 6 the six states of the programmable conference module are shown.

These six states meet general conversation and listening conferences.

The additional programmable conference module state may be realized if the conference is in a conference mode where some conference participants are in listen mode.

The term conferencing, as used herein, generally means the inclusion of a combination of communication signals as a controlled function state.

The resulting composite signal represents a conference.

Programmable conferencing module 12 performs a function operation on the communication signal by means of a predetermined (ie programmed) means and also provides:

(i) Link from sending signal to sending port

(ii) link to the receiving port where the meeting should be sent

(iii) a link from and to the conference module to allow partial conferences of the signal to be completed.

3 shows a typical programmable module 12 during a meeting.

In general, the link up to the station receiving port and the link from the station transmitting port are serial communication lines.

The link to and from the other programmable conference module is a parallel communication line or link 28.

The programmed function calculation function on the communication signal input to the module during the conference uses the serial and parallel converter 21 and the parallel and serial converter 23.

Parallel data in which a functional operation takes place is buffered by the buffer 25 before being input into the digital signal processor 27.

Serial / parallel or parallel / serial conversion of the communication signals is made under timing and control logic 29.

This logic 29 is controlled by the control input line 30. All actions in the programmable conference module 12 are synchronized by the clock input line 31.

The conferencing module 12 connects the information signal combinations corresponding to the conferences in such a way that the composite signal can be seen. Details of this combined signal are described next. Examples of such signal techniques use various digital signal processing techniques.

This can be accomplished using a programmable digital signal processor 27, such as the Texas Instruments TMS 32010 and the Motorola DSP 56000. This is an effective and variously accomplished digital signal processing, which can make a wide range of high speed droplet control.

These actions include noise control, output level adjustment, code linearization, filtering, spectral analysis, encoder signal conversion (fast Fourier transform), and signal correlation. In order to perform such an action, the digital signal processor 27 must be programmed.

This can be synthesized from separate control lines to modules and can be achieved by serial input ports.

One example of various possible applications of the module 12 during a programmable conference is used to form a network during a conference. The application of the programmable in-conference module 12 with respect to the in-conference network is used to describe useful embodiments as well as to describe the output of the programmable in-conference module 12.

It is desirable for each station, one part of the conference, or the meaning of the communication in the network during a meeting to be able to connect with all other stations in the conference, for example by telephone.

4 is a schematic representation of a preferred connection of several conferences in one conference network. For example, there are 16 circles with numbers 1-16 on the left side of the network during a meeting. The circle represents one station and the number represents that station. Each station has a transmission port connected to the network during the conference.

Each transmission port of the 16 stations provides the capability to each station of the conference network to transmit signals to the conference network.

On the opposite side of the schematic representation of the network during the conference of FIG. 5 are sixteen circles with receiving ports. Each circle represents the same station opposite on the left side of FIG. 1, even if it is a number identifying which station the received signal is from each circle on the right side of FIG.

These numbers are the set of receive ports and are fully described below.

The same station is represented by two circles opposite each other in the figure to help understand the network structure. In practice, however, the transmission and reception ports of one station are actually located at the same station.

Each of the sixteen receive ports 24 of the sixteen stations provides the capability of each station of the network 32 during a meeting to receive signals from other stations.

The following terms are used to more clearly describe and understand the present invention. Any given station in conferencing with another given station means having a transmitted signal routed through the network during the meeting to the given station.

The transmission signal routed through the network during a meeting means following a path through the network during a meeting between a transmission port of a given station and a reception port of a given station.

The conferencing module 12 or switch means that the signals are linked together when a signal can be routed from any given conference module 12 or switch to any other given conference module 12 or switch.

Links between modules 12 during a switch or conference are represented in the figure as one line therebetween. For example, the link is a copper wire, an optical fiber, a high frequency device or the like.

In a conference module 12 or any given input port 13 of a switch is the same conference module 12 when a signal can be routed from a given input port 13 to a given output port 15 Or it means that it is connected to the switch (33).

One conference shown in FIG. 4 takes place between stations 1, 3 and 5.

This indicates that the transmission port of the station 1 is linked to the ports of the station 3 and the station 5. The station 3 has a transmission port linked to the reception ports of the stations 1 and 5. The transmission port of the station 5 is linked to the reception ports of the stations 1 and 3.

Note that in this embodiment of the network 32 during the conference, the transmission port of each station is not linked to the reception port of each station.

The reason is that the communication station in the communication application assumes that it can know that it is transmitting. Thus, there is no need to receive or listen to his own information.

Thus, in FIG. 4, the receiving ports of the station 1 are not represented by the numbers 1, 3, 5, but by the numbers 3 and 5. FIG. The reason is that the station 1 can only receive from the transmission ports of the stations 3 and 5.

Similarly, four other conferences are represented in the network during the conference of FIG.

Stations 2, 7, 10, 11; Stations 4, 13; Stations 6, 8, 12, 15; Conferences between stations 9, 14, and 16 are represented in formats (2, 7, 10, 11), (4, 13), (6, 8, 12, 15), and (9, 14, 16), respectively.

Thus, in Figure 4 a communication path is generally described which links stations in a conference. Of course, when a network partner wants to finish their discussion and talk to other partners in order to be an effective meeting network, the meeting network has the ability to apply those changes and achieve the desired meeting again.

For example, a module 12, potentially with three inputs and three outputs, can form 27 separate connections with 512 states (all three input ports are connected alone or to each output port). Connected to one and both of the other input ports).

As shown in FIG. 5A, by designing the in-conference module 12 with three input ports and three output ports, a number of in-conference networks allow the number of in-conference modules and switches to vary in consideration of cost. Designed using the desired parameters of the system can be achieved.

FIG. 5A shows a basic, in-conference meeting module 12 formed between an input port and an output port. The module 12 during the meeting has an A input port side 34 and an A output port that is roughly located on the opposite side 35 of the A input port side 34 of the module 12 during the meeting.

In addition, the module 12 during the meeting has a B input port located on the side 37 adjacent to the A input port side 34 of the module 12 during the meeting, and the A output port side 35 of the module 12 during the meeting. It has a B output port on the side 39 adjacent to), and a B output port located on the opposite side 39 of the side 37 on which the B input port is located.

Also, there is a C input port located on the same side 39 as the B output port and a C output port located on the same side 37 as the B input port.

The function of the module 12 during a meeting is not particularly the same in the following various conference networks. Depending on the control realized in the network and how the signal processor is programmed for a given application, it determines the function applied to a given input signal.

FIG. 5B shows a module 12 during a meeting with an A input port connected to an A output port, while known as a zero state. It basically acts as an existing signal when module 12 is in the zero state during a meeting.

FIG. 5C shows a module 12 during a meeting with each input port connected to each output port, while known as one state. When an input port is connected to each output port For example, when an A input port is connected to an A output port, the input port and each output port form a channel.

In FIG. 5D, the module 12 during the meeting shows that it has an A input port connected to the C output port and a B input port connected to the A output port. The B output port and the C input port are not active. Such a configuration is known as a two state. In the two states of module 12 during a meeting, the C output corresponds to the A input and the A output corresponds to the B input.

In FIG. 5E, module 12 is shown during a meeting having an A input port connected to an B output port and a C input port connected to an A output port. The B input port and C output port are not active. The shape of the conference module 12 is known in three states. In state 3, output B corresponds to input A, and output A corresponds to input C.

In Fig. 5F, during the meeting, the module 12 has an A input port connected to the C output port and the B output port. The B input port is connected to the B output port and the A output port, and the C input port is connected to the C output port and the A output port. This configuration of module 12 during the meeting is known as four states. In state 4, A output corresponds to B input and C input, B output corresponds to A input and B input, and C output corresponds to A input and C input.

5, G shows a conference module 12 having a B input port connected to a B output port and a C input port connected to a C output port. The configuration of the conference module 12 is known as five states. In state 5, output B corresponds to input B and output C corresponds to input C. The 5 state provides the ability to listen to the conference network only because no signal comes through the A output port.

These six connections, confined to the 0 to 5 states of the conferencing module 12, allow the entire conference network to communicate with or receive only each station of the conference network as described below. do.

Further, the creation of such a conference network using only six states of the conference network allows the conference module 12 to manufacture what is needed to produce these six states.

Therefore, unnecessary electronic devices can be saved in the production of the conference module.

For example, only signals that can be routed through the output port of the module 12 during a meeting correspond to the next input signals Ai + B _i , A _i , B _i , 0. At that time, electrical components and connections are necessary to achieve such an output signal under appropriate conditions (subscript i denotes the input signal).

In FIG. 7, it is necessary to produce the desired output for the B ₀ output port of the module 12 during the conference, which enables only the six states described above except that there is no signal processing microchip 27 and therefore no function thereof. An example of all circuits is shown (subscript ₀ indicates output).

There are only three inputs (A _i , B _i , 0) in the circuit. The C _i input is not necessary because the B _o output signal does not correspond to the C _i input signal. The A _i and B _i inputs are connected to a summer 400 that adds the A _i and B _i inputs to generate a signal A + B.

The signals A + B together with the inputs A _i , B _i , 0 are connected to a 2-bit controller 41. The signal selected as the B output signal is determined according to the better control signal as the 2-bit controller 41.

For example, the control signals (0, 0), (0, 1), (1, 0), (1, 1) cause the B outputs to be 0, B, A, A + B, respectively. As a result, this requires fewer circuits than the circuit which must provide every one of the 27 possible connections of conference module 12 in the most common case.

Note that different connections can be made between I / O ports that form a different state than those shown above in the 0 to 5 state.

Conferencing network may also be achieved in accordance with module 12 during the conference which enabled other additional states. For the purpose of illustration, the design of the conferencing network described here follows the limitations of a conferencing module with only 0 to 5 states.

The conferencing module 12, with different connections and statuses, is one different design of the conferencing network.

The basic configuration of the ring array, open ring array, and weave array as the programmable conferencing module 12 can be formed to realize a conferencing network, as fully described below.

It should be understood that the basic sentiment of the conference involves the routing and functional manipulation of signals from at least three stations. While routing and functioning of two signals are seen as two partners and two station meetings, they can be manipulated in one form or ring array as permutations.

Thus, the basic structure, which is fully described herein, includes at least three modules 12 and at least three stations during the meeting, and the requirements for realizing three station meetings are necessarily taken into account.

Sometimes it is convenient to realize the special requirements of arranging any combination of multistation conference permutations in the following.

Three conference modules connected together in a vertical shape to establish a meeting (1, 3, 5) are shown in FIG.

Three or more arc-shaped modules connected in a vertical shape are designated as one ring array 10. The ring array 10 is linked together as at least three conference modules 12, so that the B output port of each given conference module 12 is schematically linked to the B input port below the given conference module. In the same way, the C output of each given conference module is roughly linked to the C input of the conference module above the given conference module as indicated in FIG.

The B output port of the conference module 41, which is installed underneath the ring array 10, is linked to the B input port of the module 42, which is schematically installed on the top of the ring array 10.

The C output port of the conference module 42 located approximately at the top of the ring array 10 is linked to the C input port of the module 41 during the conference located approximately at the bottom of the ring array 10.

In this way, the in-conference module of the ring array 10 can give the controller maximum flexibility to create a conferencing network for the desired conference. One ring array that does not have an in-module module that is schematically positioned at the top and bottom of the ring arrays connected together is known as an open ring array.

8 shows an open ring array of (3 × 1).

The (3 × 1) ring array has three conference modules that form one row. There is a combination of three stations labeled (1, 2, 3) and three outputs (A ₄₄ , o, A ₄₅ , o, A ₄₆ , o).

It is connected to the station's receive port and switching stage or other conference module (or any combination) in the application.

A (3 × 1) open ring array is a three-station conference, or a pass-through of a signal at a third station, a two-station conference that is not present at that conference, or a conversion of signals from three-station to output. Can be realized.

Pass-through relates to signals routed through a module during one conference without connection to any other signal. It should be understood that in the absence of a 3-station conference, only the (3 × 1) open ring array routing capability can effectively realize the rest of the 2-station conference as a pass-through or signal conversion configuration.

9 illustrates a state of a programmable conference module for realizing a 3-station conference.

Figure 10 illustrates the realization of a programmable conference state of realization of a deployment consisting of a two-station conference with one pass-through.

11 illustrates a programmable conference state for realizing the exchange arrangement of signals. Modifying the open ring array 43 described above with significant control flexibility ramification results in the ring array 10.

12 shows a (3 × 1) ring array 10.

A three-station conference with a pass-through of the remaining signals, or any exchange arrangement of signals from any two-station conference or three stations can be realized in this architecture. However, an advantage of the ring array 10 over the open ring array 43 is that more combinations of ring array states can be realized.

For example, FIG. 13 displays a three-station conference.

The ring array 10 is composed of different combinations of programmable conference modules relating to the realization of the open ring array 43 shown in FIG. It should be noted that in this sense this realization can use the ring array 10.

Similarly, Figures 14 and 15 represent the optional implementations shown in Figures 10 and 11, respectively. Optional implementations utilize ring array 10. The fact that there is a multistate of the ring array 10 for the realization of conferencing or exchange has a significant impact on the controller design. In other words, the ring array 10 provides unique flexibility that is not useful in an open ring array that can be implemented by a control function.

In addition to one ring array 10, a network of ring arrays 10 can be used when one ring array capability does not satisfy all possible signal arrangements.

For example, consider a combination of four stations, denoted by (1, 2, 3, 4).

Also consider the realization of the two-station arrangements (1, 3) and (2, 4) represented by {(1, 3), (2, 4)}.

In the (4x1) -ring array 10 or the open ring array 40 satisfying this arrangement, it is easy to see that there is no combination of states of the programmable conference module.

Thus, another basic structure needed during the meeting is the ring array 10 network.

It can be seen as a ring array network in which ring arrays are connected in various ways. The two most basic structures are shown in Figures 16 and 17, respectively, which are (4x2) -ring array networks.

This network consists of two (4 × 1) -open ring arrays 43 or ring arrays 10 connected directly.

Obviously a combination of open ring array 43 and ring array 10 is also possible.

Again, the ring array 10 can be realized by a control function that is flexible in arrangement and not useful as the open ring array 10.

18 shows the realization of dual deployment {(1, 3), (2, 4)} with a (4x2) -ring array network.

Apparently the use of two ring arrays 10 results in a larger number of programmable conference module states for the realization of this dual two-station conference than is supplied by the open ring array 43.

As another example, FIG. 19 illustrates the realization of a (4 × 2) -ring array network with a configuration consisting of three-station conferences (1, 2, 4) and direct pass-through of signals from station (3). This arrangement is indicated by {(1, 2, 3), (3)}.

The ring array 10, which is connected to the other ring array 10 via the top and bottom of the conference module, located schematically, is known as the weave array 44 as shown in FIG. 20.

The B output port and C input port of the module 45 located at the bottom of the first ring array 46 are connected to the C input port and B output port of the conference module 47 located at the bottom of the second ring array 48, respectively. It is connected. Similarly, the B input port and C output port of the module 41 during the meeting located on top of the first ring array 46 are the C and B inputs, respectively, of the module 50 during the meeting located on top of the second ring array 48. It is connected to the port.

21 shows a (4x2) -weave ring array 41 which realizes the arrangement {(1, 2, 4), (3)}.

Of particular importance is the number of different states of a programmable conference module used in realizing deployment with a weave ring array design as compared to what was realized previously. It is to be understood that the possible weaving patterns that can be used between ring arrays vary greatly.

As another example of a weaving ring network, FIG. 22 illustrates an over lapping weave array ring design. Note that the signal transmitted from the ring array is the flow in the ring array.

Returning to FIG. 6, the in-conference module 42 associated with the first station is in a three state. Typically a module in a three state conference is closed and the top ends the conference with part of the passage of the ring array 10 or open ring array 43 of the module during the conference. This is because the B input port and the C output port do not operate and consequently do not carry any signal from one conference module to another. Similarly, conference module 41 is in two states in association with five states.

During the two-state meeting, the module is typically closed or the bottom ends the meeting with the passage portion of the ring array 10 or open ring array 43.

This is because the B output port and the C input port of the module during the conference in the 2 state are not working, and thus are not linked to another in-conference module located under the module 41 during the conference.

During the meeting, the module 51 is connected to the station 3 and is in four states. In-conference module 51 acts essentially as a bridge and transmits signals by channel B from the module above it to the module in the conference below and by the C channel from the module below it to the module above it. .

During conferencing in the 4 state, the module allows the signal to pass through its A output port to the vertical flow of the signal, and also connects the signal from the A input port to the C output port to the upstream of the signal or through the B output port. Allow the flow to flow downward in the signal.

The desired network during the meeting is established for the meetings 1, 3 and 5 by the link shown in FIG. 6 and the following connection. The signal is connected from the input A to the output B of the module 42 during the meeting.

During the meeting, the module 51 has a B input port connected to an A output port and a B output port.

This causes the signal to be routed from the A input port ultimately through the A output port of the conference module 51 to the receiving port of the station 3, and also during the conference with the B input port of the module 51. The connection between the B output ports of the module 51 is routed to the module 41 during the meeting.

In turn, the B output port of the module 51 during a meeting is connected to the B input port of the module 41 during a meeting. The B input port of the module 41 during the meeting is connected to the A output port of the module 41 during the meeting.

At this time, the routed signal is routed to the receiving port of the station 5 through the B input port of the module 41 during the meeting. Similarly, the transmission signal from the station 5 is routed to the receiving port of the station 1 and to the receiving port of the station 3.

The transmission signal from the station 3 is transmitted down to the receiving port of the station 5 by the A input port and the B output port of the module 51 during the meeting.

The B output port of the module 51 during the meeting is connected to the B input port of the module 41 during the meeting, and is sequentially connected to the A output port of the module 41 during the meeting. During the meeting, the A output port of the module 41 is connected to the receiving port of the station 5.

Signals are similarly transmitted via the A and C output ports of the module 51 during the meeting and the C and A output ports of the module 42 during the meeting, from the transmitting port of the station 3 to the receiving port of the station 1. Is rooted in. The C output port of the module 51 during the meeting and the C input port of the module 42 during the meeting are connected thereto.

The in-meeting network for 16 stations using only the in-conference module is shown in FIG. The network during the conference shown in FIG. 23 is not capable of meeting every other station and every station. This is because when N is 16, it is the N / 4 ring array 10 of the module 10 during N meetings.

In addition to the N / 2 ring array 10 of the N conference module 12, a conference with every other station is required for every station in the conference network consisting of the conference module 12 only.

Describe the meetings (1, 3, 5); (2, 7, 10, 11); (4.13); (6, 812, 5); (9, 14, 16).

For example, a station 1 in a conference with stations 3 and 5 has a transmission port connected to the A inlet port of module 52 in the conference state. The transmission signal in one state from the station 1 is routed from the module 52 during the meeting to the module 53 during the meeting through the B input port.

The transmitted signal is routed through module 53 during a direct conference. This is because the module 53 is connected to the station 2 during the meeting, and the station 1 is not in a meeting with respect to the station 2.

The transmission signal of the station 1 is received by the module 54 connected to the station 3 by its B input port. The conference module 54 is in four states in order to be converted into a transmission signal from the station 1 to the receiving port of the station 3.

In addition, the transmitted signal of the station 1 is routed under or through the ring array 100 to the station 5, which is located below the station 3 in the network design during the conference. The transmission signal of the station 1 routed through the module 54 along the B channel is also routed through the module 55 in the 1 state since the station 4 is not in a meeting with the station 1.

From the module 55 during the meeting, the transmission of the station 1 is routed to the module 56 during the meeting associated with the station 5.

During the meeting, the module 56 is in two states to convert the transmitted signal from the station 1 to the receiving port of the station 5, and also moves the stations 1, 3 located higher in the ring array 100. Are in two states to indicate the transmission signal of the station 5 on the vertical array.

As mentioned earlier, the conference module in the two states, the bottom ends one ring array with respect to one conference.

This is because the stations 1, 3 and 5 are not in a conference with the other stations under the station 5 in the ring array 100 of the network during the conference.

The transmission signal of the station 2 flows into the A input port of the module 53 and is directly routed along the A channel.

During the conference module 53 is in the 1 state. This is because they are not in conference with stations 1, 3, 5 having signals routed vertically along the B and C channels of station 53 of station 2. Thus, the signal from the station 2 is routed along the next ring array 102, which enters the vertical flow of the ring array 102. The signal from the station 2 is then routed through the ring array 102 to the module that carries the signal from the station where the station 2 is in conference.

This is accomplished by a module during a meeting in one state.

When a transmitted signal from station 2 is routed vertically along ringarray 102 to one station in a meeting, the signal is routed from the vertical flow by module 57 during the meeting in four states.

Finally, the signal arrives at the receiving port of the station 7.

If the station 2 is in a conference with one station further below the ring array 102, then the conferencing module 57 in the 4 state then transmits the transmission signal of the station 2 to the ring array of the network during the conference. In step 102, it is flowed by the B channel to the module during the meeting further down.

In FIG. 23, the B channel follows the vertical path facing the signal downward, and the C channel follows the vertical path facing the signal upward.

The A channel provides the ability for the signal to enter the B and C channels, and also provides the ability to extract the signal therefrom with respect to the horizontal direction.

Different embodiments of a conference network with the ability to supply communication between 16 stations are shown in FIG.

The conference network 300 uses a switching stage and a module during a meeting, unlike the previous embodiment, which uses only the module during a meeting.

A typical switch is to connect only one input port to one output port, unlike a module in a conference where you can connect input ports to each output port.

In FIG. 24, the network 300 during the meeting is divided into conferences (1, 3, 5), (2, 7, 10, 11), (4, 13), (6, 8, 12, 15), (9, 14). , 69).

These are the same conferences as described in the network 200 during the conference described above. The conferences 1, 3, 5 will be described in detail with respect to the conference network 300.

In FIG. 24, the transmission port of the station 1 is connected to the reception ports of the stations 3 and 5 along the following path so that signals can be routed therebetween.

The transmission port of the station 1 is connected to the first input port of the switch 302 in the switching stage 303. The first input port 301 is connected to the first output port 306 of the switch 302. The first output port 306 of the switch 302 is connected to the input port of the module 308 during the meeting.

During the meeting, the module 308 is configured so that the transmission signal from the first station is horizontally continued through it, and along the channel A, the ring array 310 does not flow the meetings 1, 3, and 5 into its vertical flow. It will be in the 0 state.

The A output port of the conference module 308 is connected to the first input port 312 of the switch 314 of the switching stage 311. The first input port 312 of the switch 314 is connected to the first output port 316 of the switch 314 connected to the A input port of the module 318 during the meeting.

In-conference module 318 is in three states because of an input signal that is routed from the input port A of module 318 to the output port B of module 318 during the meeting.

The B output port of the module 318 during the meeting is connected to the B input port of the module 382 during the meeting.

During the conference, the module 382 is in the 1 state.

The B input port of the module 382 during the meeting is connected to the B output port of the module 382 during the meeting. The B output port of the module 382 during the meeting is connected to the input port of the module 380 during the meeting. During the meeting, the module 380 is in the 1 state.

The B input port of the conference module 380 is connected to the B input port of the module 378 during the conference.

During the meeting, the module 378 is in the 1 state.

The B input port of the module 378 during the meeting is connected to the B input port of the module 378 during the meeting.

The B output port of module 378 during the meeting is connected to the B input port of module 322 during the meeting.

During the meeting, the module 322 is connected to the B input port and its A output port and is in four states. The B input port of the module 322 during the meeting is connected to the B output port of the module 322 during the meeting.

The B output port of module 322 during a meeting is connected to the B input port of module 362 during a meeting. The B input port of module 362 during the meeting is connected to the B output port of module 362 during the meeting. The B output port of module 362 during the meeting is connected to the B input port of module 324 during the meeting. During the meeting, the module 324 is in two states.

The B input port of the module 324 during the meeting is connected to the A output port of the module 324 during the meeting.

The conference module 324 in the 2 state connects the B input port and the A output port.

The output A terminal of the conference module 322 is connected to the second input port 326 of the switch 328 of the switch stage 329. The second input port 326 of the switch 328 is connected to the second output port 320 of the switch 328.

The second output port 320 of the switch 328 is connected to the first input port 332 of the switch 334 of the switching stage 333. The first input port 332 of the switch 334 is connected to the first output port 330 of the switch 334. Then, it is sequentially connected to the receiving ports of the stations (1) and (3).

The A output port of the module 324 during the meeting is connected to the second input port 338 of the switch 340. The second input port 338 of the switch 340 is connected to the first output port 342 of the switch 340. Then, the transmission signal from the station 1 is routed from the first output port 342 of the switch 340 to the third input port 344 of the switch 346.

The third input port 344 of the switch 346 is connected to the third output port 348 of the switch 346. In turn, it is connected to the receiving port of the station 3.

Thus, the transmission signal station 1 is received by the station 3.

The transmission port signal of the station 3 is connected to the reception ports of the stations 1 and 5 along the next passage to be sheared therebetween.

The transmission port of the station 3 is connected to the third input port 350 of the switch 302. The third input port 350 of the switch 302 is connected to the second output port 352 of the switch 302. The second output port 352 of the switch 302 is connected to the A input port of the conference module 354.

The conference module 354 is in the zero state because the transmission signal of the station 3 is transmitted from the A input port of the module 354 during the meeting to the A output port of the module 354 during the meeting.

The A output port of module 354 is connected to the first input port 356 of the switch 358 during the meeting. The first input port 356 of the switch 358 is connected to the third output port 360 of the switch 358. The third output port 360 of the switch 358 is connected to the A input port of the module 324 during the conference. The A input port of the module 324 during the meeting is connected to the C output port of the module 324 during the meeting.

The C output port of the module 324 during the meeting is connected to the C input port of the module 362 during the meeting.

The module 362 during the conference is in a state of 1 because it transmits the transmitted signal from the station 3 through the module 362 during the conference and to its C output port.

The C output port of the conference module 362 is connected to the C input port of the conference module 322.

In-conference module 322 is in a state of four because it allows the transmission signal from three stations to be connected to the A output port of module 322 during the meeting and the C output port of module 322 during the meeting.

During the meeting, the A output port of the module 322 is eventually connected to the B input port and transmits the transmission signal at the station 1 as well as the transmission signal at the station 3.

The A output port of the conference module 322 is connected to the second input port 326 of the switch 328. At that time, the transmission signal of the station 3 follows the same path, and the transmission signal of the station 1 follows the reception port of the station 5 as mentioned above.

The C output port of the module 322 during the meeting is connected to the C input port of the meeting module 378 in the 1 state. The C output port of the conference module 378 is connected to the C input port of the conference module 380.

During the conference module 380 is in the 1 state. The C input port of the module 380 during the meeting is connected to the C output port of the module 380 during the meeting, and is sequentially connected to the C input port of the module 382 during the meeting.

The C input port of the module 382 during the meeting is connected to the C output port of the module 382 during the meeting.

The C output port of the module 382 during the meeting is connected to the C input port of the module 318 during the meeting. The C input port of the module 318 during the meeting is connected to the A output port of the module 318 during the meeting. The A output port of module 318 is connected to the first input port 384 of the switch 328 during the meeting.

The first input port 384 of the switch 328 is connected to the first output port 386 of the switch 328. The first output port 372 of the switch 328 is connected to the first input port 338 of the switch 346. The first input port 388 of the switch 346 is connected to the first output port 390 of the switch 346. The first output port 390 of the switch 346 is connected to the receiving port of the station 1.

The transmission port of the station 5 is connected to the reception ports of the stations 1 and 3 according to the following path. Thus, the signal can be transferred in between.

The transmit port of the station 5 is connected to the first input port 364 of the switch 366, and the first input port 364 of the switch 366 is connected to the second output port 368 of the switch 366. The second output port 368 of the switch 366 is connected to the A input port of the module 370 during the conference in the 1 state. Accordingly, the transmission signal of the station 5 is transmitted from the A input port of the module 370 during the meeting to the A output port of the module 370 during the meeting.

The A output port of module 370 is connected to the second input port 372 of the switch 358 during the meeting. The second input port 372 of the switch 358 is connected to the first output port 374 of the switch 358. The first output port 374 of the switch 358 is connected to the A input port of the module 322 during the conference in four states.

Therefore, the transmission signal of the station 5 is connected to the C output port of the module 322 during the meeting and the module 322 during the meeting to the B output port. The transmission signal from the station 5 at the B output port of the module 322 during the meeting is transmitted according to the transmission signal of the station 1, and then follows the same path, and the transmission signal from the station 1 is transmitted by the station 3. Follow to be received.

Similarly, the transmission signal at the station 5 at the C output port of the module 322 during the meeting is in the same path as the transmission signal at the station 3 is received by the station 1 at the module 322 during the meeting. Delivered along. Additional meetings are described in FIG.

They are not described in detail. The reason is that such description is similar to that of the meetings 1, 3 and 5, except that there is a link and connection between the switch and the meeting module.

Another conference network capable of providing communication between 16 stations is shown in FIG.

The conferencing network 400 performs the conferencing 1, 3, 5, 2, 7, 10, 11, 4, as in the conferencing networks 100, 300 shown in FIGS. 23 and 24. 13), (6, 8, 12, 15) and (9, 14, 16).

The conferencing network 400 uses one open ring array 402 to achieve during conferencing and relies on a switch to supplement one open ring array 402.

The conferencing network 400 is an additional example and uses the minimum number of conferencing modules to achieve any desired conference between 16 stations.

The meetings 1, 3, 5 are described in detail below with respect to the network 400 during the meeting.

The transmission port of the station 1 is connected to the reception ports of the stations 3 and 5 along the following path. Thus, the signal is passed in between.

The transmission port of the station 1 is connected to the first input port 404 of the switch 406. The first input port 404 of the switch 406 is connected to the first output port 408 of the switch 406. The first output port 408 of the switch 406 is connected to the first input port 410 of the switch 412.

The first input port 410 of the switch 412 is connected to the first output port 414 of the switch 412. The first output port 414 of the switch 412 is connected to the first input port 416 of the switch 418. The first input port 416 of the switch 418 is connected to the first output port 420 of the switch 418.

The first output port 420 of the switch 418 is connected to the A input port of the module 422 during the conference in three states. The A input port of the switch 422 is connected to the B output port of the conference module 422. The B output port of the conference module 422 is connected to the B input port of the conference module 424. In Conference Module 4 state.

The A input port of the conference module 424 is connected to the A output port of the conference module 424 and the B output port of the module 424 during the conference. The A output port of module 424 is connected to switch 428 and to the second input port 426 during the meeting.

The second input port 426 of the switch 428 is connected to the second output port 430 of the switch 428. The second output port 430 of the switch 428 is connected to the first input port 432 of the switch 434. The first input port 432 of the switch 434 is connected to the first output port 436 of the switch 434.

The first output port 436 of the switch 434 is connected to the second input port 438 of the switch 440. The second input port 438 of the switch 440 is connected to the third output port 442 of the switch 440. The third output port 442 of the switch 440 is connected to the receiving port of the station 3.

The B output port of the module 424 during the meeting is connected to the B input port of the module 444 during the meeting. The B input port of the module 444 during the meeting is connected to the A output port of the module 444 during the meeting. The A output port of module 444 during the meeting is connected to the third input port 446 of the switch 428.

The third input port 446 of the switch 428 is connected to the third output port 448 of the switch 428. The third output port 448 of the switch 428 is connected to the first input port 450 of the switch 452. The first input port 450 of the switch 452 is connected to the second output port 454 of the switch 452. The second output port 454 of the switch 452 is connected to the third input port 456 of the switch 458.

The third input port 456 of the switch 458 is connected to the first output port 460 of the switch 458. The first output port 460 of the switch 458 is connected to the receiving port of the station 5.

The transmission port of the station 3 is connected to the reception ports of the stations 1 and 5 according to the following path. Thus, the signal is passed in between.

The transmission port of the station 3 is connected to the third input port 462 of the switch 406. The third input port 462 of the switch 406 is connected to the second output port 464 of the switch 406. The second output port 464 of the switch 406 is connected to the first input port 466 of the switch 468.

The first input port 466 of the switch 468 is connected to the first output port 470 of the switch 468. The first output port 470 of the switch 468 is connected to the second input port 472 of the switch 418. The second input port 472 of the switch 418 is connected to the second output port 474 of the switch 418.

The second output port 474 of the switch 418 is connected to the A input port of the conference module 424. The A input port of the conference module 424 is connected to the B output port and the C output port because it is in the 4 state.

The B output port of the module 424 during the meeting is connected to the B input port and the A input port of the module 424 during the meeting. Thus, signals are received from these two ports.

Hereinafter, the path along which the transmission signal from station 3 follows station 5 is the same as that signal from station 1 follows from module 424 to station 5 during a conference, as described above.

The A input port of the conference module 424 is connected to the C output port of the conference module 424. The C output port of the conference module 424 is connected to the C input port of the module 422 during the conference. The C input port of the conference module 422 is connected to the A output port of the conference module 422 because it is in three states.

The A output port of the conference module 422 is connected to the first input port 476 of the switch 428. The first input port 476 of the switch 428 is connected to the first output port 478 of the switch 428. The first output port 478 of the switch 428 is connected to the first input port 480 of the switch 482.

The first input port 480 of the switch 482 is connected to the first output port 484 of the switch 482. The first output port 484 of the switch 482 is connected to the first input port 486 of the switch 440.

The first input port 486 of the switch 440 is connected to the first output port 488 of the switch 440. The first output port 488 of the switch 440 is connected to the receiving port of the station 1.

The transmission port of the station 5 is connected to the reception ports of the stations 1 and 3 along the following path. So the signal is passed in between.

The transmission port of the station 5 is connected to the first input port 490 of the switch 492. The first input port 490 of the switch 492 is connected to the third output port 494 of the switch 492. The third output port 494 of the switch 492 is connected to the second input port 496 of the switch 498.

The second input port 496 of the switch 498 is connected to the first output port 500 of the switch 498. The first output port 500 of the switch 498 is connected to the third input port 502 of the switch 418. The third input port 502 of the switch 418 is connected to the third output port 509 of the switch 418.

The third output port 509 of the switch 418 is connected to the A input port of the conference module 444 in the two state. The A input port of the conference module 444 is connected to the C output port of the conference module 444. The C output port of the conference module 444 is connected to the C input port of the conference module 424 in four states. The C input port of the conference module 424 is connected to the A output port and the C output port of the conference module 424.

The transmission signal from the station 5 at the A output port of the conference module 424 is transmitted from the station 1 as a transmission signal. The path that the transmission signal follows from the station 5 to the receiving port of the station 3 is the same as the path that the transmission signal from the station 1 follows from the conference module 424 to the receiving port of the station 3.

The transmission signal from the station 5 at the C output port of the conference module 424 is transmitted according to the transmission signal from the station 3. The path that the transmission signal from the station 5 follows to the receiving port of the station 1 is the same as the path that the transmission signal from the station 3 follows from the conference module 424 to the station 1 or the receiving port.

Additional conference links are described in FIG. Since the connection and the conference module of different links and switches are similar to those of the conferences 1, 3, and 5, the description thereof is omitted.

In the preferred embodiment, the conference examples {1, 3, 5}, (2, 7, 10, 11), (4, 13), (quoted above to explain the control algorithm for the conference network using the switch module and the conference module) 6, 8, 12, 15), (9, 14, 16)}.

In the following description the set of conferences is denoted as C1, C2, C3, C4, C5.

Where C1 = {1, 3, 5}, C2 = (2, 7, 10, 11), C3 = (4, 13), C4 = (6, 8, 12, 15), C5 = (9, 14 , 16).

In general, a conferencing network containing k conferences has a set of {C1... … Ck}.

An example of conference formation using one of many possible control algorithms is described in the conference network shown in FIG.

As described above, this conference network consists of one ring array of (16x4) -switching modules of 16 modules arranged between the third and fourth stages of the network.

The control algorithm used in this embodiment is considered in the description of the structure of the network but nevertheless it is a general operation description and should be performed in a multi-stage switching network with a conferencing module of any control algorithm.

In the network realizing the conferencing in this embodiment, a combination of signals from the transmit port must be delivered and produced to each receive port through the network to determine proper routing through the stage of the (4x4) -switching module.

This combination of FIG. 25 is as follows.

Receiving port 1 ⇒ {3, 5}

Receiving port 2 ⇒ {7, 10, 11}

Receiving port 3 ⇒ {1, 5}

Receiving port 4 ⇒ {13}

Receiving port 5 ⇒ {1, 3}

Receiving port 6 ⇒ {8, 12, 15}

Receiving port 7 ⇒ {2, 10, 11}

Receiving port 8 ⇒ {6, 12, 15}

Receiving port 9 ⇒ {14, 16}

Receiving port 10 ⇒ {2, 7, 11}

Receiving port 11 ⇒ {2, 7, 10}

Receiving port 12 ⇒ {6, 8, 15}

Receiving port 13 ⇒ {4}

Receiving port 14 ⇒ {9, 16}

Receiving port 15 ⇒ {6, 8, 12}

Receiving port 16 ⇒ {9, 14}

Each of these sets is a set of receive ports, represented by {RP1, RP2 ..... RP16}, for example RP7 = {2, 10, 11} and RP = {6, 8, 12}.

RPj's are generated for the conference module in the ring array. Of course, a detailed description of their occurrence is described below.

In general, however, the generation is performed on a signal in any given way, including signal processing techniques.

Thus, as indicated by RPj's, the signal combination has the proper function and time characteristics.

The following key points on which the operation of the control algorithm is based are that each port involved in the conference is passed through the first three stages to the input of the adjacent conference in the conference module to realize this conference.

This generates the adjacent conference module RPj's. RPj's then propagates through the last three stages of the network to the appropriate port.

The main feature of the control algorithm operation is the order in which the ports are connected to the ring array's conference module.

Conference network {C ₁ . … Consider the ordered ports in C _k } that correspond to a certain permutation of the meeting (ie C _i s).

For example, permutations C ₂ , C ₃ , C ₃ , C ₅ , C ₅ are the ordered portlists (2, 7, 10, 11, 4, 13, 1, 3, 5, 9, 14, 16, 6 , 8, 12, and 15).

As another example, the permutations C ₃ , C ₁ , C ₅ , C ₂ , C ₄ are arranged port lists (4, 13, 1, 3, 5, 9, 14, 16, 2, 7, 10, 11, 6, 8, 12, and 15).

Such an ordered list is called a Conference Module Input List (or CMIL _S ).

In the CMIL sequence, when a port is passed to the input of the ring array, all conferences in the conference network are established by the conference module to realize the conference.

To illustrate this, the portlist of the first CMIL given above is shown in FIG. 25 as it passes through the first three switching stages of the network to the output ports of the third stage of the network.

Note that these ports are the inputs to the ring array 402.

As an ordered port combination connected to the input of the conference module, the conference module can be set in an appropriate state so that each conference can be realized.

This is illustrated as CMIL given above in FIG.

Shown in FIG. 25 is RPj's coming from each conference module reached through the stages 4, 5 and 6 to the receiving port.

Thus a corresponding CMIL display the list of ports with respect to any permutation of C s _i. If the input of the conference module is aligned and connected, it can be combined as RPj s, j = 1, ... N. At this time, it is transmitted to the transmission port.

The function of the control algorithm is now apparent. The algorithm generates a CMIL, which then passes a list of port connections corresponding to that CMIL to the input port of the ring array.

Figure 25 shows each 4x4-switch in the first three stages of the configuration into a network for a given CMIL.

Note that the switch connection and the link of the final three stages of the switch module are mirror-images of the switch connection and the link of the switch module of the three stages.

Ci ^; The ports of s can be permuted and this still remains as CMIL, if necessary in order to connect to the A input port of the conference module ^; It is obvious that it can be combined with s.

Finally, any rotation of the CMIL is still displayed in another ordered list, which can be combined with the required RPj ¹ s if connected and linked to the ring array.

For example, if the above CMIL rotates two positions to the right, the result is C ₄ , C ₂ , C ₃ , C ₁ , C ₅ , C ₄ , which is {6, 8, 10, 11, 2, 7, 13 , 4, 5, 1, 3, 16, 14, 9, 12, 15}.

The official description of the control algorithm is as follows.

Given: A connections marked with

{C ₁ , C ₂ , ....., C _k }

Step 1: Create CMIL.

Step 2: Link the send port to the A input port on the ring array in the CMIL sequence.

Step 3: RPj using the conference module ^; produces s

Step 4: From the output port of the ring array to the receiving port using the mirror-image path associated with the path used from the sending port to the input port of the conference ring RPj ^; Link s

All links and connections through the switching network are achieved by means of a multistage switching network control algorithm (see, for example, Mathematical Theory of Connecting Networks and Telephony: 1967, New York, Academy Press Buban).

The description above assumes the following:

The full meeting assignments indicated in {C ₁ , C ₂ , .... C _k } were given and it was necessary to establish a meeting that included these assignments. Optionally, another concern is that the meeting request will be personally predictable, must be satisfied by the conference network and the ring, and other meetings that have already been established.

Yet another concern is that the station can make a request to join an existing meeting. The modified control algorithm for all of these cases can determine the necessary path to satisfy this request.

This algorithm is related as an incremental control algorithm.

Incremental control algorithms are described below in relation to the second of the two cases cited above.

The incremental control algorithm describes the structure of the ring / network shape and it establishes a path.

However, as the algorithms mentioned above, examples of such algorithms relate to particular network structures. It is to be understood that this description requires an operating characteristic, the differential control algorithm of which must be carried out in a structure using a programmable conference module.

Consider the network during the meeting shown in FIG.

Conference assignments {C ₁ , C ′ ₂ , C ₃ } = {(1, 5, 7), (2, 4, 6), (9, 10, 13) are shown as incremented.

This assumes that it has been established using the algorithm and CMIL described previously.

C ₁ C ₂ C ₃

First assume that station 14 wants to join conference C ₂ to form C'2- (2, 4, 6, 14).

In other words, a satisfied new meeting assignment

{C ₁ , C ′ ₂ , C ₃ } = {(1, 5, 7), (2, 4, 6, 14), (9, 10, 13)}.

In general, the network during a meeting realizes the assignment of the meeting {C ₁ , C ₂ ... C _i-1, C _{i + 1} , _... C _k } and station j is C _i to form C _i. Ask to join.

In the 26 degree view, there is no specific useful programmable conference module adjacent to the one used to achieve a C ₂ as a C ₂ can be established.

Thus, several paths should be arranged from / to the programmable conference module used to establish conferences C ₁ , C ₂ , C ₃ to add station 14 to C ₂ .

In order to explain this rearrangement, it is necessary to think of the theorem prolist associated with CMIL in FIG.

(1, 5, 7, 2, 4, 6, 9, 10, 13)

C ₁ C ₂ C ₃

It is useful to describe specific ports in this organized port list as the top and bottom ports for each conference.

For example, in this cleaned up port list:

About C ₁

Port 1 is the upper port.

Port 5 is the bottom port.

About C ₂

Port 2 is the upper port.

Port 6 is the bottom port.

About C ₃

Port 9 is the upper port.

Port 13 is the bottom port.

Consider the modified port list.

Here, 9 is moved from the current position of the upper port with respect to the C ₃ to the position of the lower port of the C ₃ (i.e., 9, is moved to the bottom of the list).

Leave the gap and mark it as Φ and its original position is (1, 5, 7, 2, 4, 6, Φ, 10, 13, 9).

One such movement with respect to the network shown in FIG. 26 corresponds to rearranging the connection paths from / to station 9 to use the underlying programmable conference module used as station 13 to supply RP9 to the connection paths. do.

This is illustrated in FIG.

This movement opens the path from / to station 14 to the programmable conference module already used by station 9.

28 shows a station 14 using the same path as the new conference assignment is realized.

The main feature of the already described process is that the make path operation is performed before the brake path operation as shown in FIG.

The effect of doing this is in the period of time after the make but before the break (which must be a momentary period of time).

Meeting C ₃ is established when C ₃ = (9, 10, 13, 9). In other words, conference C ₃ has two signal inputs from station 9 instantaneously. This means that the station 9 is not from the meeting C ₃ even if it is included in the rearrangement.

The level control function achieved as a programmable conferencing module can be used to alleviate this momentary double input condition branch.

The general description of the above procedure relating to the case of a cleaned up port list that requests station j to join C _i and corresponds to the CMIL of the current network implementation is as follows.

Where P _q , t are the top ports for C _q , P _q , b are the bottom ports of C _q , and q = 1, ... k.

The procedure moves P _k , t to the bottom of the list.

Then, P _k-1 , t is moved to a position in the list already occupied by P _k , t ...,.

At that time, P _{i + 1} , t is moved to a position already occupied by P _{i + 2} , t.

This leaves a gap at a position previously occupied by P _{i + 1} , t at the bottom of the C _i component of the list, which then makes j a new subport of C _i in this list. It is filled by inserting j into it.

One procedure is called the bottom-pushing routine because of the means by which the cleaned up portlist pushes the port of the down-list in this procedure to create a gap for j.

Optional to the bottom-push procedure is a top-pushing routine. The top-push routine is effectively the inverse of the bottom-push routine, which begins by moving P ₁ , b to the top of the list, and then continues until a gap appears at the top of the C _i component in the list.

Both the lower-push routine and the upper-push routine correspond to a sequence of make / break operations in a ring of a programmable conference module.

This operation requires that the routing be reorganized through the switching module stages around the programmable conference module.

The extent to which such rearrangement is necessary depends, of course, on the use of circuit configurations.

However, the reordering algorithm of the switching network is well known and can be used for this purpose.

The official description of the incremental control algorithm is as follows.

Given: Assigned Meetings Execution Use the CMIL here. C ₁ , C ₂ , ... C _i-1 , C _j , C _{i + 1} , ..., C _k and the idle station are called station j and require the sum of C _i .

Step: 1 Determine whether the currently used CMIL supplies an unused programmable conference module adjacent to the C _i heavy programmable conference module. If so, rearrange the path from stage j through this switching network. Then use this programmable conferencing module to add j to C _i to make C _i . If not, go to Step 2.

Step 2: If the unused programmable conference module adjacent to the series of passages is k-i < i or top-push routine or k-1i, then make it move corresponding to the bottom-push routine. A suitable switching network rearrangement algorithm is established to establish this by rearranging the path through the switching module around the programmable conference module.

Step 3: Make C _i as a useful unused programmable conference module (either at the top or bottom of the Ci component, depending on whether you used a bottom-push routine or a top-push routine).

Various (additional) modifications or variations of this invention are apparent in the above description. It is, therefore, to be understood that within the scope of the appended claims this invention may be practiced otherwise than as specifically described herein.

Claims (26)

First, second and third stations each having a transmission port and a reception port; First, second and third conference modules of a predetermined state having an A output port, an A input port, a B input port, a B output port, a C input port, and a C output port, respectively; In a conference network comprising control means for controlling the first, second, and third conference modules to establish a predetermined conference between the first, second, and third stations, wherein the B output port and the C input port of the first conference module are respectively. The second call module is linked to the B input port and the C output port, and the B and C input ports of the second conference module are linked to the B and C output ports of the third conference module, respectively. The transmitting ports of the stations are linked to the A input ports of the first, second and third conference modules, respectively, and the receiving ports of the first, second and third stations are linked to the first, second and third conference modules, respectively. A network during a meeting, characterized by forming the module as an open ring array. The method of claim 1, wherein the B input port and the C output port of the first conference module are linked to the B output port and the C input port of the third conference module, respectively, to form the first, second and third conference modules as ring arrays. Featuring in-conference network. 4. The apparatus of claim 1, further comprising: fourth, fifth, sixth, seventh and eighth stations each having a transmission port and a reception port; A fourth, fifth, sixth, seventh, and eighth conferencing modules of a predetermined state having an A output port, an A input port, a B input port, a B output port, a C input port, and a C output port, respectively, The A input port of the fourth conference module is linked to the transmission port of the fourth call module, and the B input port and C output port of the fourth conference module are linked to the B output port and C input port of the third conference module, respectively. Second, third and fourth conference modules are formed into an open ring array, the fifth conference module is linked to the sixth conference module, the sixth conference module is linked to the seventh conference module, the seventh conference module is linked to the eighth conference module, The A input ports of the fifth, sixth, seventh and eighth conference modules are linked to the A output ports of the first, second, third and fourth conference modules, respectively. Eighth and the A output port of conferencing module, the first, second, third and fourth is linked to the receive port of station, the fifth, sixth, seventh and eighth conferencing modules of the network meeting as to form an open ring array. 4. The method of claim 3, wherein the B output port and the C input port of the fourth conference module are linked to the B input port and the C output port of the first conference module, respectively, to form the first, second, third and fourth conference modules as the first ring array. And the B output port and the C input port of the eighth conference module are linked to the B input port and the C output port of the fifth conference module, respectively, to form a fifth, sixth, seventh and eighth conference module as a second array. Of the network. The method of claim 3, wherein the B input port and the C output port of the first conference module are connected to the C output port and the B input port of the fifth conference module, respectively, and the B output port and the C input port of the fourth conference module are eighth. And a first, second, third and fourth, fifth, sixth, seventh and eighth conference modules connected to the C input port and the B input port of the conference module, respectively, to form a weave array. 6. A switch according to claim 4 or 5, further comprising: a switch having first, second, third and fourth input ports and first, second, third and fourth output ports; In an in-meeting network having control means for arranging the switch at a predetermined position to establish a predetermined meeting of a station tube, the A output ports of the first, second, third and fourth modules are the first, second, third and third of the switch. Respectively connected to a fourth input port, wherein the first, second, third and fourth output ports of the switch are connected to the A input ports of the first, second, third and fourth conference modules, respectively. In a conference network consisting of N number of modules greater than or equal to 1 and M switches greater than or equal to 0, each having a greater or equal number of K stations, among K stations greater than or equal to 3 And the K station is linked through the N conference module and the M switch so that each station can have a conference with another station. An open ring array comprising three K-times modules in a predetermined state; Means for controlling the open ring array to place the K conference module in a predetermined state. 9. The apparatus of claim 8, further comprising: N open ring arrays of N≥1 and integers, wherein each open ring array is connected to another open ring array and configured as a conference module in a predetermined state; And control means for controlling the conference module constituting the N open ring array such that the conference module is in a predetermined state. 10. The conferencing network of claim 9 wherein N + 1 ≧ L ≧ 2 and even integers in the N + 1 open ring arrays are connected to form a weave array. A ring array composed of K times modules having a predetermined state K = 3 and an integer; And means for controlling the ring array to place the K conference module in a predetermined state. The N ring array according to claim 8, wherein each ring array is connected to another ring array, wherein the N ring array is N≥1 and an integer consisting of a conference module in a predetermined state; And control means for controlling the conference module constituting the N ring array such that the conference module is in a predetermined state. 10. The conferencing network of claim 8, further comprising a switching stage connected to the ring array, wherein the switching stage has an S switch of which S≥1 and an integer capable of a predetermined connection. Of the network. 12. The conferencing network of claim 11, further comprising a switching stage coupled to the ring array, wherein the switching stage is S ≧ 1 capable of a predetermined connection and having an S switch. network. 10. The method according to claim 9, wherein M≥1 having an S switch of S≥1 and integer capable of a predetermined connection with M≥J≥1 and integer J switching stage among M≥1 and integer M switching stages linked with a ring array. The network of conferencing, further comprising M switching stages. The M ≥ 1 according to claim 10, wherein M ≥ 1 having an S switch of which S ≥ 1 and an integer can be connected to a J switching stage of M ≥ J ≥ 1 and an integer among M ≥ 1 and integer M switching stages linked with a ring array. The network of conferencing, further comprising M switching stages. 12. The method according to claim 11, wherein M≥1 having an S switch of S≥1 and integer capable of a predetermined connection with M≥J≥1 and integer J switching stage among the M≥1 and integer M switching stages linked with the ring array. The network of conferencing, further comprising M switching stages. The method of claim 12, wherein M≥1 having an S switch of S≥1 and integer capable of predetermined connection with M≥J≥1 and integer J switching stage among the M≥1 and integer M switching stages linked with the ring array. The network of conferencing, further comprising M switching stages. 19. The conferencing network of any one of claims 15, 16, 17 or 18, further comprising a K station linked to the ring array. 19. The conferencing network of any one of claims 15, 16, 17 or 18, further comprising a K station linked to the switching stage. A K station having a transmission port and a reception port, respectively, K≥3 and an integer; Each K conference has K input port and output port, each K sending port of K station is connected to K input port of ring array, and each K receiving port of K station is connected to K output port of ring array. An M-ring array having a K-times network for placing the module in a predetermined state; Means for controlling the M ring array to bring the module in a predetermined state during the conference. 9. The K input port according to claim 8, further comprising a K input port of a first open ring array of an M ring array and a K output port of a second open ring array of an M open ring array, each linked to a K output port at a switching stage. An M switching stage for forming a predetermined connection between the K output port and the K output port; And a control means for connecting the K input port and the K output port of the M switching stage to a predetermined form. 12. The K input port of claim 11, further comprising a K input port of a first open ring array of an M ring array and a K output port of a second open ring array of an M open ring array, each linked to a K output port at a switching stage. An M switching stage for forming a predetermined connection between the K output port and the K output port; And a control means for connecting the K input port and the K output port of the M switching stage to a predetermined form. A K station having a transmitting port and a receiving port, K≥3 and an integer; An N-ring array with N≥1 for putting the modules in the K-times into a predetermined state and each module during the K-times in a desired state; It has a K input port of the switching stage and a K output port linked to the K input port, and forms a predetermined connection between the K input port and the K output port, and the K station of the K station linked to the K output port of the switching stage. An N switching stage having K reception ports and N ≧ 1 and an integer; And means for controlling the N-ring array such that the module is in a predetermined state during the K meeting, and controlling the N switching stage such that the N switching stage has a predetermined connection. A K station having a transmitting port and a receiving port, K≥3 and an integer; The K conference network having a predetermined state, the K conference module having a K input port and a K output port, and a K connection port having a K input port and a K output port have a predetermined connection between the K input port and the K output port. N switching stages that form N≥1 and integer, K transmission port of K station linked to K input port of switching stage, K output port of switching stage linked to K input port of ring array, and K of K station An N ring array having N > 1 and an integer having a K output port of the ring array linked to the receiving port; Means for controlling the ring array such that the module during the conference is in a predetermined position, and controlling the switching stage such that the K input port and the K output port of the switching stage are connected in a predetermined form. . A K station having a transmitting port and a receiving port, K≥3 and an integer; The K conference network having a predetermined state, the K conference module having a K input port and a K output port, and a K connection port having a K input port and a K output port have a predetermined connection between the K input port and the K output port. M switching stage of which N≥2 and integer to be formed, K transmission port of K station linked to K input port of switching stage, K output port of switching stage linked to K input port of ring array, and K of switching stage An N-ring array having N≥1 and an integer having a K output port of a ring array linked to an input port and a K output port of a switching stage linked to a K receiving port of a K station; And means for controlling the N-ring array such that the module is in a predetermined state and controlling the switching stage such that the K input port and the K output port of the switching stage are connected in a predetermined form. network.

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