A method, system, and storage medium for conference partition communication

Abstract

The application discloses a conference partition communication method, system and storage medium, and belongs to the technical field of communication, and the method comprises the following steps: in response to a request of a first IP terminal for initiating a conference, acquiring conference partition information of the request, wherein the conference partition information comprises a partition number, a partition name and a partition default member list; judging whether there is a conference partition session taking the partition number as an identifier; if not, creating a blank session according to the partition number and the partition name; the blank session takes the partition number as an identifier; adding the first IP terminal into the blank session, and adding corresponding IP terminals into the blank session according to the partition default member list, so as to obtain a conference partition session, so that the terminal can perform data transmission with multiple conference partition sessions, the anti-interference capability of data transmission is improved, the upper limit of data transmission distance is improved, and the change flexibility of the conference partition is improved.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a method, system, and storage medium for conference partitioning communication. Background Technology

[0002] Currently, internal project communication within classified units uses walkie-talkies or wired communication tools. Due to security requirements, common wireless communication technologies cannot be used on-site.

[0003] While walkie-talkies are mobile, they operate in half-duplex mode, limiting their range and resulting in poor audio quality. They are also susceptible to environmental interference, producing noise and even frequency crosstalk. Wired communication devices, on the other hand, are easily affected by environmental conditions, and long-distance transmission is prone to signal attenuation, requiring additional enhancement and anti-interference measures. Communication groups are often limited by hardware, making it impossible to overcome hardware limitations in setting up groups. Adding new locations requires additional manpower to address wiring issues. Therefore, both wired and wireless internal communication methods suffer from short transmission distances and low flexibility in changing communication locations. Summary of the Invention

[0004] This invention provides a method, system, and storage medium for conference partition communication, enabling data transmission between a terminal and multiple conference partition sessions, improving the anti-interference capability of data transmission, increasing the upper limit of data transmission distance, and enhancing the flexibility of changing conference partitions.

[0005] This invention provides a method for conference partition communication, comprising:

[0006] In response to a request from the first IP terminal to initiate a conference, the system obtains the conference partition information requested, which includes: partition number, partition name, and a default member list for the partition.

[0007] Determine whether a conference partition session exists that uses the partition number as its identifier;

[0008] If not, a blank session is created based on the partition number and the partition name; the blank session uses the partition number as an identifier.

[0009] The first IP terminal is added to the blank session, and the corresponding IP terminals are added to the blank session according to the default member list of the partition, thus obtaining the conference partition session.

[0010] Furthermore, in response to the registration request of the first IP terminal, a name, user, and unique code are assigned to the first IP terminal based on its SN number.

[0011] Furthermore, after creating a blank session based on the partition number and the partition name, the process further includes:

[0012] The authorized user for the blank session is set, and the conference partition information is sent to the second IP terminal where the authorized user is located.

[0013] Furthermore, determining whether a conference partition session exists using the partition number as an identifier also includes:

[0014] If a conference partition session exists that uses the partition number as its identifier, then the first IP terminal is added to the conference partition session.

[0015] Furthermore, if the first IP terminal joins two or more conference partition sessions, then the output information of all the conference partition sessions is sent to the first IP terminal, and the input information of the first IP terminal is sent to all the conference partition sessions.

[0016] The output information includes: audio and text information sent by the IP terminals in the conference partition session;

[0017] The input information includes: voice information and text information sent by the first IP terminal.

[0018] Furthermore, in response to the second IP terminal issuing a control command to the third IP terminal, it is determined whether the second IP terminal has the corresponding control authority; if so, the corresponding control is performed.

[0019] Both the second IP terminal and the third IP terminal are IP terminals in the conference partition session;

[0020] The control commands include one of the following: a remove command, a block command, and a mute command.

[0021] Furthermore, the step of determining whether the second IP terminal has the corresponding control permissions, and if so, performing the corresponding control, specifically involves:

[0022] The host identifier field of the second IP terminal is sent to the terminal database of the terminal module so that the terminal module can determine whether the second IP terminal has permission based on the host identifier field and the database field identifier. If so, the terminal module selects the corresponding API according to the control command issued by the second IP terminal and sends the code of the third IP terminal to the service module through the API.

[0023] When the terminal module receives the encoding of the third IP terminal sent through the API, it performs corresponding control on the third IP terminal.

[0024] Furthermore, the step of controlling the third IP terminal according to the control command specifically includes:

[0025] If the control command is a removal command, the third IP terminal will be removed from the conference partition session, and the third IP terminal will be notified.

[0026] If the control command is a mask command or a mute command, the output information of the conference partition session will be replaced with blank information before it is sent to the third IP terminal.

[0027] As a preferred embodiment, the conference partition communication method of the present invention can realize the function of flexibly forming conference discussion groups, realize the function of customizing members by setting a default member list, and set the permissions for members to join conference partition sessions. One IP terminal device can join multiple conference partition sessions to realize online discussion in a multi-person group.

[0028] This invention allows for flexible customization of conference partitions, connecting new points via network cables, enabling terminals to transmit data between multiple conference partitions, improving the anti-interference capability of data transmission, increasing the upper limit of data transmission distance, and enhancing the flexibility of changing conference partitions.

[0029] In addition, the present invention sets host permissions, which can specify the host to remove, block and mute members, improving the flexibility of changing meeting partitions.

[0030] Accordingly, the present invention also provides a system for conference partition communication, comprising:

[0031] Service module, terminal module, and several IP terminals;

[0032] The service module is used to respond to a request from the first IP terminal to initiate a conference, and to obtain the conference partition information requested. The conference partition information includes: partition number, partition name, and a default member list for the partition.

[0033] Determine whether a conference partition session exists that uses the partition number as its identifier;

[0034] If not, a blank session is created based on the partition number and the partition name; the blank session uses the partition number as an identifier.

[0035] Add the first IP terminal to the blank session, and add the corresponding IP terminal to the blank session according to the default member list of the partition, to obtain the conference partition session;

[0036] The terminal module is used to determine whether the second IP terminal has permission based on the host identifier field and the database identifier field. If so, it sends the control command issued by the second IP terminal to the third IP terminal and the encoding of the third IP terminal to the service module.

[0037] Each of the IP terminals is used to log in to the service module using the user connection assigned by the service module.

[0038] Accordingly, the present invention also provides a computer-readable storage medium comprising a stored computer program; wherein, when the computer program is executed, it controls the device on which the computer-readable storage medium is located to perform a method for conference partition communication as described in the present invention. Attached Figure Description

[0039] Figure 1 This is a flowchart illustrating an embodiment of the conference partition communication method provided by the present invention;

[0040] Figure 2 This is a schematic diagram of an embodiment of the conference partition communication system provided by the present invention. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] Please refer to Figure 1 The present invention provides a method for conference partition communication, comprising steps S101-S104:

[0044] Step S101: In response to the request from the first IP terminal to initiate a conference, obtain the conference partition information requested, the conference partition information including: partition number, partition name, and default member list of the partition;

[0045] Furthermore, in response to the registration request of the first IP terminal, a name, user, and unique code are assigned to the first IP terminal based on its SN number.

[0046] In this embodiment, each IP terminal and service module supports the SIP protocol, and the IP terminal is registered to the service module via the SIP protocol.

[0047] In this embodiment, the service module assigns a unique code to each IP terminal to identify different IP terminals; the name assigned by the service module to each IP terminal is not unique, but the names of each IP terminal do not conflict with each other.

[0048] In this embodiment, assigning users to the first IP terminal further includes:

[0049] The service module configures the meeting partitions that users can participate in based on their permission information.

[0050] In this embodiment, the service module assigns users to each IP terminal. Users can use the assigned user to connect to and log in to the service module on their respective IP terminals. Different users have different permissions.

[0051] Step S102: Determine whether a conference partition session exists that uses the partition number as an identifier;

[0052] Furthermore, determining whether a conference partition session exists using the partition number as an identifier also includes:

[0053] If a conference partition session exists that uses the partition number as its identifier, then the first IP terminal is added to the conference partition session.

[0054] In this embodiment, if a conference partition session exists with the partition number as its identifier, it indicates that the current conference partition session has been initiated. The first IP terminal directly joins the conference partition session and communicates with other members of the conference partition session, i.e., other IP terminals.

[0055] Step S103: If there is no conference partition session with the partition number as the identifier, then create a blank session based on the partition number and the partition name; the blank session uses the partition number as the identifier.

[0056] Furthermore, after creating a blank session based on the partition number and the partition name, the process further includes:

[0057] The authorized user for the blank session is set, and the conference partition information is sent to the second IP terminal where the authorized user is located.

[0058] In this embodiment, when creating a blank session, authorization is granted to a preset user. Only IP terminals logged in by authorized users can receive the corresponding conference partition information, including: the first partition number and the first partition name.

[0059] After registering with the service module via the SIP protocol, the IP terminal obtains its call code, name, and user information. Based on the user's authorization information, the service module configures the conference partition information the user can participate in. The IP terminal retrieves the visible conference partition information configured on the service module and displays it on the IP terminal. When preset conditions are met, the IP terminal uses the conference partition information as parameters to join the conference and initiates a conference request.

[0060] The preset conditions are met, for example: the meeting request is automatically initiated at the preset time, or the IP terminal is the default member list of meeting partition session A, and meeting partition session A is initiated.

[0061] In this embodiment, the conference partition session is used for communication and discussion among the IP terminals of the conference partition session, i.e., the members of the conference partition session. One of the sending IP terminals sends a first input information to the conference partition session. After the terminal module processes the first input information, a second input information is obtained. The second input information is used as the first output information of the conference partition session, and the first output information is sent to other IP terminals except for the sending IP terminal.

[0062] Step S104: Add the first IP terminal to the blank session, and add the corresponding IP terminal to the blank session according to the default member list of the partition, to obtain the conference partition session.

[0063] Furthermore, if the first IP terminal joins two or more conference partition sessions, then the output information of all the conference partition sessions is sent to the first IP terminal, and the input information of the first IP terminal is sent to all the conference partition sessions.

[0064] The output information includes: audio and text information sent by the IP terminals in the conference partition session;

[0065] The input information includes: voice information and text information sent by the first IP terminal.

[0066] In this embodiment, the terminal joins multiple conference partition sessions, which essentially involves creating an RTP streaming media channel with each conference partition session. This RTP streaming media channel is created via SIP signaling and used for data transmission. Assuming the first IP terminal joins six conference partition sessions, the first IP terminal establishes RTP streaming media channels with each of the six sessions, and the input data from the first IP terminal is transmitted to the corresponding conference partition session through these six RTP streaming media channels.

[0067] In this embodiment, the newly added points are connected by network cables to enable data transmission between the terminal and multiple conference partition sessions. This method of data transmission has stronger anti-interference capabilities than wired and wireless methods.

[0068] Furthermore, in response to the second IP terminal issuing a control command to the third IP terminal, it is determined whether the second IP terminal has the corresponding control authority; if so, the corresponding control is performed.

[0069] Both the second IP terminal and the third IP terminal are IP terminals in the conference partition session;

[0070] The control commands include one of the following: a remove command, a block command, and a mute command.

[0071] Further, it is determined whether the second IP terminal has the corresponding control permissions. If so, the corresponding control is performed, specifically as follows:

[0072] The host identifier field of the second IP terminal is sent to the terminal database of the terminal module so that the terminal module can determine whether the second IP terminal has permission based on the host identifier field and the database field identifier. If so, the terminal module selects the corresponding API according to the control command issued by the second IP terminal and sends the code of the third IP terminal to the service module through the API.

[0073] When the terminal module receives the encoding of the third IP terminal sent through the API, it performs corresponding control on the third IP terminal.

[0074] In this embodiment, besides controlling the addition of conference partitions, other control permissions, such as removal, blocking, and mute, require a host identifier field to be synchronously sent to the terminal database. When the terminal module runs, it reads the database field identifier to determine whether the current terminal has the necessary permissions. The terminal module then sends the code of the control object to the service module via an HTTP call to the corresponding remove, block, or mute command API reserved by the service module.

[0075] When the service module receives the code sent by the terminal module through the removal, blocking or mute command API, it identifies the corresponding terminal, namely the third IP terminal, based on the code and performs corresponding control on the third IP terminal.

[0076] Furthermore, according to the control instructions, the third IP terminal is controlled accordingly, specifically as follows:

[0077] If the control command is a removal command, the third IP terminal will be removed from the conference partition session, and the third IP terminal will be notified.

[0078] If the control command is a mask command or a mute command, the output information of the conference partition session will be replaced with blank information before it is sent to the third IP terminal.

[0079] In this embodiment, the second IP terminal is used as the host of the conference partition session, and the host has the permissions to remove, block, and mute conference partition members.

[0080] In this embodiment, the conference partition session is used for communication and discussion among the IP terminals of the conference partition session, i.e., the members of the conference partition session. One of the sending IP terminals sends first input information to the conference partition session. After the terminal module processes the first input information, it obtains output information for each IP terminal and forwards the first output information to the other IP terminals except for the sending IP terminal.

[0081] If the host of the conference partition session, i.e. the second IP terminal, removes or blocks the third IP terminal, the third IP terminal will be removed from the conference partition session using the SIP protocol, and the third IP terminal will be notified.

[0082] If the second IP terminal mutes the third IP terminal, the terminal module will replace the input information of other IP terminals, replacing all the input information with blank information, and obtain the output information belonging to the third IP terminal. The output information belonging to the third IP terminal will then be forwarded to the third IP terminal.

[0083] For other IP terminals that are not muted, the terminal module processes the input information of all IP terminals normally, obtains the output information belonging to other IP terminals, and forwards it to the other IP terminals respectively.

[0084] Based on this implementation plan, an interface for the service module is added to connect to third-party configured meeting partitions, as well as to connect to multiple meeting partitions.

[0085] Implementing the embodiments of the present invention has the following effects:

[0086] The conference partition communication method of the present invention can realize the function of flexibly forming conference discussion groups. By setting a default member list, the function of customizing members can be realized. The permissions of members to join conference partition sessions can be set. One IP terminal device can join multiple conference partition sessions to realize online discussion in a multi-person group.

[0087] This invention allows for flexible customization of conference partitions, connecting new points via network cables, enabling terminals to transmit data between multiple conference partitions, improving the anti-interference capability of data transmission, increasing the upper limit of data transmission distance, and enhancing the flexibility of changing conference partitions.

[0088] In addition, the present invention sets host permissions, which can specify the host to remove, block and mute members, improving the flexibility of changing meeting partitions.

[0089] Example 2

[0090] Please refer to Figure 2 The present invention provides a conference partition communication system, comprising: a service module 201, a terminal module 202 and a plurality of IP terminals 2031-203N; where N is a positive integer.

[0091] The service module is used to respond to a request from the first IP terminal to initiate a conference, and to obtain the conference partition information requested. The conference partition information includes: partition number, partition name, and a default member list for the partition.

[0092] Determine whether a conference partition session exists that uses the partition number as its identifier;

[0093] If not, a blank session is created based on the partition number and the partition name; the blank session uses the partition number as an identifier.

[0094] Add the first IP terminal to the blank session, and add the corresponding IP terminal to the blank session according to the default member list of the partition, to obtain the conference partition session;

[0095] The terminal module is used to determine whether the second IP terminal has permission based on the host identifier field and the database identifier field. If so, it sends the control command issued by the second IP terminal to the third IP terminal and the encoding of the third IP terminal to the service module.

[0096] Each of the IP terminals is used to log in to the service module using the user connection assigned by the service module.

[0097] The service module includes: a registration unit, an authorization unit, a judgment unit, a multi-conference communication unit, and a control unit.

[0098] The registration unit is used to respond to the registration request of the first IP terminal and assign a name, user and unique code to the first IP terminal according to the SN number of the first IP terminal.

[0099] The authorization unit is used to set the authorized users of the blank session and send the conference partition information to the second IP terminal where the authorized users are located.

[0100] The determination unit is used to add the first IP terminal to the conference partition session if a conference partition session with the partition number as the identifier exists.

[0101] The multi-conference communication unit is used to send the output information of all conference partition sessions to the first IP terminal and send the input information of the first IP terminal to all conference partition sessions if the first IP terminal joins two or more conference partition sessions.

[0102] The output information includes: audio and text information sent by the IP terminals in the conference partition session;

[0103] The input information includes: voice information and text information sent by the first IP terminal.

[0104] The control unit is used to respond to the control command issued by the second IP terminal to the third IP terminal, determine whether the second IP terminal has the corresponding control authority, and if so, perform the corresponding control.

[0105] Both the second IP terminal and the third IP terminal are IP terminals in the conference partition session;

[0106] The control commands include one of the following: a remove command, a block command, and a mute command.

[0107] Furthermore, the step of determining whether the second IP terminal has the corresponding control permissions, and if so, performing the corresponding control, specifically involves:

[0108] The host identifier field of the second IP terminal is sent to the terminal database of the terminal module so that the terminal module can determine whether the second IP terminal has permission based on the host identifier field and the database field identifier. If so, the terminal module selects the corresponding API according to the control command issued by the second IP terminal and sends the code of the third IP terminal to the service module through the API.

[0109] When the terminal module receives the encoding of the third IP terminal sent through the API, it performs corresponding control on the third IP terminal.

[0110] The control of the third IP terminal according to the control command specifically includes:

[0111] If the control command is a removal command, the third IP terminal will be removed from the conference partition session, and the third IP terminal will be notified.

[0112] If the control command is a mask command or a mute command, the output information of the conference partition session will be replaced with blank information before it is sent to the third IP terminal.

[0113] The conference partition communication system described above can implement the conference partition communication method of the above method embodiments. The options in the above method embodiments are also applicable to this embodiment, and will not be detailed here. The remaining content of this application embodiment can be referred to the content of the above method embodiments, and will not be repeated in this embodiment.

[0114] Example 3

[0115] Accordingly, the present invention also provides a computer-readable storage medium comprising a stored computer program, wherein, when the computer program is executed, it controls the device containing the computer-readable storage medium to perform the conference partition communication method as described in any of the above embodiments.

[0116] For example, the computer program may be divided into one or more modules / units, which are stored in the memory and executed by the processor to complete the present invention. The one or more modules / units may be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program in the terminal device.

[0117] The terminal device may be a desktop computer, laptop, handheld computer, or cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0118] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of the terminal device, connecting all parts of the terminal device via various interfaces and lines.

[0119] The memory can be used to store the computer programs and / or modules. The processor implements various functions of the terminal device by running or executing the computer programs and / or modules stored in the memory and by calling data stored in the memory. The memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, applications required for at least one function, etc.; the data storage area may store data created based on the use of the mobile terminal, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, RAM, plug-in hard disk, smart memory card (SMC), secure digital card (SD), flash memory card, at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0120] Wherein, if the modules / units integrated into the terminal device are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, it can implement the steps of the various method embodiments described above. Wherein, the computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0121] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention for those skilled in the art.

Claims

1. A method for conference partitioned communication, characterized in that, include: In response to a request from the first IP terminal to initiate a conference, the system obtains the conference partition information requested, which includes: partition number, partition name, and a default member list for the partition. Determine whether a conference partition session exists that uses the partition number as its identifier; If not, a blank session is created based on the partition number and the partition name; the blank session uses the partition number as an identifier. Add the first IP terminal to the blank session, and add the corresponding IP terminal to the blank session according to the default member list of the partition, to obtain the conference partition session; If the first IP terminal joins two or more conference partition sessions, then the output information of all the conference partition sessions is sent to the first IP terminal, and the input information of the first IP terminal is sent to all the conference partition sessions. The output information includes: audio and text information sent by the IP terminals in the conference partition session; The input information includes: voice information and text information sent by the first IP terminal.

2. The method for conference partition communication as described in claim 1, characterized in that, Also includes: In response to the registration request of the first IP terminal, a name, user, and unique code are assigned to the first IP terminal based on its SN number.

3. The method for conference partition communication as described in claim 1, characterized in that, After creating a blank session based on the partition number and the partition name, the process further includes: The authorized user for the blank session is set, and the conference partition information is sent to the second IP terminal where the authorized user is located.

4. The method for conference partition communication as described in claim 1, characterized in that, The step of determining whether a conference partition session using the partition number as an identifier exists further includes: If a conference partition session exists that uses the partition number as its identifier, then the first IP terminal is added to the conference partition session.

5. A method for conference partition communication as described in any one of claims 1-4, characterized in that, Also includes: In response to the second IP terminal issuing a control command to the third IP terminal, it is determined whether the second IP terminal has the corresponding control authority. If so, the corresponding control is performed. Both the second IP terminal and the third IP terminal are IP terminals in the conference partition session; The control commands include one of the following: a remove command, a block command, and a mute command.

6. The method for conference partition communication as described in claim 5, characterized in that, The step of determining whether the second IP terminal has the corresponding control permissions, and if so, performing the corresponding control, specifically involves: The host identifier field of the second IP terminal is sent to the terminal database of the terminal module so that the terminal module can determine whether the second IP terminal has permission based on the host identifier field and the database field identifier. If so, the terminal module selects the corresponding API according to the control command issued by the second IP terminal and sends the code of the third IP terminal to the service module through the API. When the terminal module receives the encoding of the third IP terminal sent through the API, it performs corresponding control on the third IP terminal.

7. The method for conference partition communication as described in claim 6, characterized in that, The control of the third IP terminal according to the control command specifically includes: If the control command is a removal command, the third IP terminal will be removed from the conference partition session, and the third IP terminal will be notified. If the control command is a mask command or a mute command, the output information of the conference partition session will be replaced with blank information before it is sent to the third IP terminal.

8. A system for conference partition communication, characterized in that, include: Service module, terminal module, and several IP terminals; The service module is used to respond to a request from the first IP terminal to initiate a conference, and to obtain the conference partition information requested. The conference partition information includes: partition number, partition name, and a default member list for the partition. Determine whether a conference partition session exists that uses the partition number as its identifier; If not, a blank session is created based on the partition number and the partition name; the blank session uses the partition number as an identifier. Add the first IP terminal to the blank session, and add the corresponding IP terminal to the blank session according to the default member list of the partition, to obtain the conference partition session; The terminal module is used to determine whether the second IP terminal has permission based on the host identifier field and the database identifier field. If so, it sends the control command issued by the second IP terminal to the third IP terminal and the encoding of the third IP terminal to the service module. Each of the IP terminals is used to log in to the service module using the user connection allocated by the service module; If the first IP terminal joins two or more conference partition sessions, then the output information of all the conference partition sessions is sent to the first IP terminal, and the input information of the first IP terminal is sent to all the conference partition sessions. The output information includes: audio and text information sent by the IP terminals in the conference partition session; The input information includes: voice information and text information sent by the first IP terminal.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program; wherein, when the computer program is executed, it controls the device on which the computer-readable storage medium is located to perform a method for conference partition communication as described in any one of claims 1 to 7.

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