Set-top box and communication device

Abstract

The present application relates to the technical field of communication devices, and provides a set-top box and a communication device. The set-top box comprises a housing (1), a holder (2), and a circuit assembly. The housing (1) has a first cavity (11); a first opening (12) is formed on one end surface of the housing (1); a second opening is formed on the circumferential side of the housing (1); and an infrared window (4) is further provided on the circumferential side of the housing (1). The holder (2) is located in the first cavity (11) and is detachably connected to the housing (1); and a bottom plate (21) of the holder (2) matches the first opening (12). The circuit assembly is detachably connected to the holder (2); the circuit assembly comprises a circuit board (31), a plurality of antennas (32) electrically connected to the circuit board (31), an interface board, and an infrared head; the interface board matches the second opening; and an output end of the infrared head faces the infrared window (4).

Description

Set-top boxes and communication equipment

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202311169830.2 filed on September 8, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of communication equipment, and in particular to a set-top box and communication equipment. Background Art

[0004] With the advancement of networks and hardware, the use of digital set-top boxes is increasing. The market now includes not only single-function set-top boxes but also converged products that combine them with other products. These products, called converged set-top boxes, can perform the functions of both a set-top box and other products. The emergence of converged set-top boxes has also led to a richer and more diverse range of structural types.

[0005] At present, for converged set-top box products combined with routers and other products, in order to improve antenna performance, the antenna needs to be arranged at a higher height. Therefore, the internal space of the converged set-top box needs to be designed to be larger. In view of this, the converged set-top box is designed to be barrel-shaped. Since the barrel-shaped converged set-top box has multiple parts, each part is provided with its own mounting bracket. During installation, each part needs to be connected to its own mounting bracket first, and then the multiple brackets with parts installed are connected to the shell of the set-top box, which makes the assembly and disassembly of the barrel-shaped converged set-top box more complicated.

[0006] Summary of the Invention

[0007] The main purpose of the present application is to provide a set-top box and communication equipment. The present application installs multiple parts in a circuit assembly through a bracket, and connects the bracket to the shell. Compared with installing multiple parts on multiple brackets and then installing multiple brackets on the shell, the steps of installing the circuit assembly and the shell are reduced, and the convenience of assembling and disassembling the circuit assembly and the shell is improved.

[0008] According to the first aspect of the present application, a set-top box is provided, comprising: a shell, provided with a first cavity, a first opening being provided on one end face of the shell, a second opening being provided on the peripheral side of the shell, and an infrared window being further provided on the peripheral side of the shell; a bracket, located in the first cavity and detachably connected to the shell, the bottom plate of the bracket being adapted to the first opening; and a circuit assembly, detachably connected to the bracket, the circuit assembly comprising a circuit board, a plurality of antennas electrically connected to the circuit board, an interface board and an infrared head, the interface board being adapted to the second opening, and the output end of the infrared head facing the infrared window.

[0009] In a second aspect, an embodiment of the present application provides a communication device, comprising any of the set-top boxes described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0012] FIG1 shows an exploded view of a set-top box provided in an embodiment of the present application;

[0013] FIG2 shows a second exploded view of a set-top box provided in an embodiment of the present application;

[0014] FIG3 shows a cross-sectional view of a set-top box provided in an embodiment of the present application;

[0015] FIG4 shows a top view of a bracket provided in an embodiment of the present application;

[0016] FIG5 is a schematic structural diagram of a bracket provided in an embodiment of the present application;

[0017] FIG6 shows a schematic structural diagram of a housing provided in an embodiment of the present application.

[0018] The accompanying drawings are marked as follows: 1. Shell; 11. First cavity; 12. First opening; 13. Second opening; 14. Anti-rotation column; 141. Protrusion; 15. First limiting rib; 16. Slide; 17. Concave stop; 18. Third opening; 2. Bracket; 21. Bottom plate; 211. Protruding stop; 212. Anti-slip groove; 22. Anti-rotation hole; 23. Second limiting rib; 24. Slide; 25. Second cavity; 26. Antenna slot; 27. Step; 31. Circuit board; 32. Antenna; 33. Interface board; 4. Infrared window; 5. Anti-slip foot pad. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] FIG1 shows an exploded view 1 of a set-top box provided in an embodiment of the present application, and FIG2 shows an exploded view 2 of a set-top box provided in an embodiment of the present application.

[0021] As shown in Figures 1 and 2, an embodiment of the present application provides a set-top box, comprising a housing 1, a bracket 2, and a circuit assembly. The housing 1 is provided with a first cavity 11, a first opening 12 is provided on one end face of the housing 1, a second opening 13 is provided on the periphery of the housing 1, and an infrared window 4 is also provided on the periphery of the housing 1; the bracket 2 is located in the first cavity 11 and is detachably connected to the housing 1, with the bottom plate 21 of the bracket 2 being adapted to the first opening 12; the circuit assembly is detachably connected to the bracket 2, and the circuit assembly comprises a circuit board 31, a plurality of antennas 32 electrically connected to the circuit board 31, an interface board 33, and an infrared head; the interface board 33 is adapted to the second opening 13, and the output end of the infrared head faces the infrared window 4.

[0022] The present application includes a shell 1, a bracket 2 and a circuit assembly. The shell 1 is barrel-shaped, and is provided with a first cavity 11. A first opening 12 is provided on one end face of the shell 1 along the length direction. The first opening 12 is connected to the first cavity 11, so that the bracket 2 and the circuit assembly can be installed in or removed from the first cavity 11 through the first opening 12. A second opening 13 is also provided on the peripheral side of the shell 1. The second opening 13 is connected to the first cavity 11, and the second opening 13 is also opened at one end facing the first opening 12 to facilitate the installation or removal of the bracket 2 and the circuit assembly. An infrared window 4 is also provided on the peripheral side of the shell 1. The infrared window 4 and the shell 1 can be formed in an integral manner or connected in a detachable manner.

[0023] The bracket 2 is installed in the first cavity 11 and is detachably connected to the housing 1. It can be fixed by bolts, pins, or clamps. The bracket 2 is provided with a bottom plate 21. The bottom plate 21 of the bracket 2 is adapted to the first opening 12. When the bracket 2 is located in the first cavity 11, the bottom plate 21 of the bracket 2 is located at the first opening 12, thereby preventing the contents of the first cavity 11 from falling and preventing foreign matter from entering through the first opening 12. The bottom plate 21 of the bracket 2 is connected to the housing 1 by bolts.

[0024] The circuit assembly is removably connected to the bracket 2 and includes a circuit board 31, multiple antennas 32, an interface board 33, and an infrared head. The circuit board 31 is removably connected to the bracket 2, for example, by bolts, snaps, or other means. The multiple antennas 32 are electrically connected to the circuit board 31, thereby transmitting electrical signals to or from the circuit board 31. The multiple antennas 32 are removably connected to the bracket 2, for example, by adhesive bonding, snapping, or other means. The interface board 33 is signal-connected to the circuit board 31. This is a functional board responsible for input and output (I / O). The interface board 33 consists of dedicated I / O components, control software, and connectors. The interface circuit converts signals from the host (board) into signals that can be recognized by the peripheral device. The interface board 33 is removably connected to the bracket 2, for example, by bolts, snaps, or other means. To facilitate connection between the interface board 33 and other external components, the interface board 33 protrudes from the outer surface of the bracket 2. During installation, the interface board 33 is installed in the second opening 13 to prevent the housing 1 from obstructing the interface board 33. The infrared head is electrically connected to the circuit board 31, and can transmit electrical signals to the circuit board 31 or transmit signals from the circuit board 31. The infrared head and the bracket 2 are detachably connected, for example, by bolts, snap-fits, etc. The output end of the infrared head faces the infrared window 4 to facilitate normal operation of the infrared head.

[0025] During installation, first install the circuit board 31, multiple antennas 32, interface board 33 and infrared head of the circuit assembly on the bracket 2, and then insert the bracket 2 with the circuit board 31 installed into the first cavity 11. At this time, it is necessary to pay attention to the engagement of the interface board 33 with the second opening 13, and the output end of the infrared head toward the infrared window 4. After the insertion is completed, the bracket 2 is connected to the housing 1. The present application uses a bracket 2 to install multiple parts in the circuit assembly, and then connects it to the housing 1 through the bracket 2. Compared with installing multiple parts on multiple brackets 2, and then installing multiple brackets 2 on the housing 1, the present application reduces the steps of installing the circuit assembly and the housing 1, and improves the convenience of assembling and disassembling the circuit assembly and the housing 1.

[0026] In some embodiments, the bracket 2 is provided with a second cavity 25, and the circuit board 31 is adapted to the second cavity 25 and is detachably connected to the bracket 2. When the circuit board 31 is installed in the second cavity 25, the circuit board 31 is hidden in the bracket 2, thereby preventing the circuit board 31 from protruding from the outer surface of the bracket 2. When the bracket 2 is inserted into the shell 1, the shell 1 can be prevented from touching the circuit board 31, thereby preventing the circuit board 31 from being damaged. The circuit board 31 is detachably connected to the bracket 2, and the bracket 2 is provided with a first stud at the second cavity 25, and a first screw hole is provided at the corresponding position of the circuit board 31. The screw passes through the first screw hole of the circuit board 31 and is threadedly connected to the first stud of the bracket 2, thereby connecting the circuit board 31 to the bracket 2. A button is also provided at the bracket 2, and the button performs a physical pressing operation on the circuit board 31.

[0027] In some embodiments, the outer wall of the bracket 2 is provided with a plurality of antenna slots 26, and the plurality of antennas 32 are detachably connected to the plurality of antenna slots 26. A plurality of antennas 32 are provided to realize different transmission functions. The number of antenna slots 26 is not less than the number of antennas 32, and the plurality of antenna slots 26 can be located at the corners or the peripheral side walls of the bracket 2. The antenna slots 26 are adapted to fit the antennas 32 to facilitate the installation of the antennas 32. The antennas 32 can be adhered to the antenna slots 26 by adhesive, and an undercut can be provided at the antenna slots 26 to press and snap the antennas 32 in. When the antenna 32 is located in the antenna slots 26, the antenna 32 is hidden in the bracket 2, preventing the antenna 32 from protruding from the outer surface of the bracket 2. When the bracket 2 is inserted into the housing 1, the probability of collision between the housing 1 and the antenna 32 is reduced, and the probability of damage to the antenna 32 during installation is reduced.

[0028] Referring to Figures 3 and 4 , Figure 3 shows a cross-sectional view of a set-top box according to an embodiment of the present application, and Figure 4 shows a top view of a bracket according to an embodiment of the present application. In some embodiments, the bracket 2 is provided with an anti-rotation post or an anti-rotation hole 22 at one end thereof facing away from the base plate 21, and the inner wall of the corresponding housing 1 is provided with an anti-rotation post 14 or the other of the anti-rotation holes, with the anti-rotation post 14 and the anti-rotation hole 22 cooperating with each other.

[0029] In one example, an anti-rotation column is protruding from the end of the bracket 2 facing away from the bottom plate 21; an anti-rotation hole is opened on the inner wall of the end of the shell 1 facing away from the first opening 12. When the bracket 2 is installed in the first cavity 11, the anti-rotation column is inserted into the anti-rotation hole, so that the bracket 2 and the shell 1 are accurately positioned, thereby avoiding relative rotation between the shell 1 and the bracket 2 during later use, avoiding misalignment of the interface board 33 in the circuit assembly and the second opening 13, and avoiding misalignment of the infrared head and the infrared window 4.

[0030] In one example, an anti-rotation hole 22 is recessed at one end of the bracket 2 facing away from the bottom plate 21; an anti-rotation column 14 is integrally formed on the inner wall of one end of the shell 1 facing away from the first opening 12. When the bracket 2 is installed in the first cavity 11, the anti-rotation column 14 is inserted into the anti-rotation hole 22, so that the bracket 2 and the shell 1 are precisely positioned, thereby avoiding relative rotation between the shell 1 and the bracket 2 during later use, avoiding misalignment between the interface board 33 in the circuit assembly and the second opening 13, and avoiding misalignment between the infrared head and the infrared window 4.

[0031] In some embodiments, at least one protrusion 141 is provided on the circumferential side of the anti-rotation column 14, and the protrusion 141 extends along the length direction of the anti-rotation column 14. The circumferential side of the anti-rotation column 14 is integrally formed with the protrusion 141, and the number of the protrusions 141 can be one, two, or more. When the number of the protrusions 141 is more than one, the multiple protrusions 141 are arranged at intervals along the circumferential side of the anti-rotation column 14. The anti-rotation hole 22 is also provided with grooves adapted to the protrusions 141, and the number of the grooves corresponds to the number of the protrusions 141. The provision of the protrusions 141 can prevent the anti-rotation column 14 from rotating in the anti-rotation hole 22, further improving the accuracy of the installation of the bracket 2 and the housing 1.

[0032] In one example, there are three protrusions 141 , which are spaced apart around the outer circumference of the anti-rotation post 14 . The anti-rotation hole 22 also has three grooves corresponding to the three protrusions 141 .

[0033] In some embodiments, at least two anti-rotation posts 14 are provided, and at least two anti-rotation holes 22 are provided, so as to further improve the installation accuracy of the bracket 2 and the housing 1 .

[0034] Referring to Figures 4 to 6, Figure 4 shows a top view of a bracket provided in an embodiment of the present application, Figure 5 shows a structural schematic diagram of a bracket provided in an embodiment of the present application, and Figure 6 shows a structural schematic diagram of a shell provided in an embodiment of the present application. In some embodiments, the inner wall of the shell 1 has a first limiting rib 15 extending along the height direction of the shell 1, and the outer wall of the corresponding bracket 2 has a second limiting rib 23 extending along the height direction of the bracket 2, and the first limiting rib 15 and the second limiting rib 23 cooperate with each other. The first limiting rib 15 is located in the first cavity 11 and is integrally formed with the inner wall of the shell 1. The first limiting rib 15 extends along the height direction of the shell 1; the second limiting rib 23 is arranged on the outer wall of the bracket 2 and is integrally formed with the bracket 2. The second limiting rib 23 extends along the height direction of the bracket 2. When the bracket 2 extends into the first cavity 11, the first limiting rib 15 fits in with the second limiting rib 23, reducing the bracket 2 from tilting or swinging left and right in the first cavity 11. The number of the first limiting rib 15 and the second limiting rib 23 can be set in multiple numbers and arranged at intervals, which can further reduce the bracket 2 from tilting or swinging left and right in the first cavity 11.

[0035] In some embodiments, the inner wall of the shell 1 extends along the height direction of the shell 1 to form one of the slides 16 or the slide rails, and the outer wall of the corresponding bracket 2 extends along the height direction of the bracket 2 to form the other of the slides or the slide rails 24, and the slides 16 and the slide rails 24 cooperate with each other.

[0036] In one example, a slideway 16 is integrally formed on the inner wall of the housing 1, extending along the height of the housing 1. A slide rail 24 is integrally formed on the outer wall of the bracket 2, extending along the height of the bracket 2. The slide rail 24 cooperates with the slideway 16. During installation, the slideway 16 and the slide rail 24 are aligned, which improves the convenience of inserting the bracket 2 into the first cavity 11 and further improves the convenience of the operator.

[0037] In one example, a slide rail is integrally formed on the inner wall of the housing 1, extending along the height of the housing 1. A slideway is integrally formed on the outer wall of the bracket 2, extending along the height of the bracket 2. The slide rails cooperate with each other. During installation, the slideway 16 is aligned with the slide rail 24, making it easier for the bracket 2 to be inserted into the first cavity 11, further enhancing the convenience of installation and removal by the operator.

[0038] In one embodiment, a plurality of slide rails 24 and slideways 16 may be provided and arranged at intervals.

[0039] In some embodiments, one of a convex stop block 211 and a concave stop opening is provided on the side of the bottom plate 21 facing the first cavity 11, and the other of a convex stop block and a concave stop opening 17 is provided on the inner wall of the corresponding shell 1, and the convex stop block 211 and the concave stop opening 17 cooperate with each other.

[0040] In one example, a convex stop block 211 is integrally formed on the side of the base plate 21 facing the first cavity 11, and a mounting block is integrally formed on the inner wall of the shell 1 facing the first opening 12. A concave stop 17 is provided at the mounting block, and the convex stop block 211 cooperates with the concave stop 17. When the bracket 2 is located in the first cavity 11, the concave stop 17 engages with the convex stop block 211, thereby locking and fixing the base plate 21 and the shell 1, further improving the stability of the installation of the bracket 2 and the shell 1, and can be used to correct the deformation of the shell 1, and can also control the side gap generated after the bracket 2 and the shell 1 are assembled.

[0041] In one example, a concave stop is integrally formed on the side of the base plate 21 facing the first cavity 11, and a mounting block is integrally formed on the inner wall of the shell 1 facing the first opening 12. A convex stop is provided at the mounting block, and the convex stop cooperates with the concave stop. When the bracket 2 is located in the first cavity 11, the concave stop 17 engages with the convex stop 211, thereby locking and fixing the base plate 21 and the shell 1, further improving the stability of the installation of the bracket 2 and the shell 1, and can be used to correct the deformation of the shell 1, and can also control the side gap generated after the bracket 2 and the shell 1 are assembled.

[0042] 1 and 2 , in some embodiments, the infrared window 4 and the second opening 13 are respectively arranged on opposite sides of the shell 1 , the infrared window 4 and the shell 1 are an integrated structure, or a third opening 18 for installing the infrared window 4 is further provided on the outer peripheral side of the shell 1 , and the second opening 13 and the third opening 18 are respectively arranged on opposite sides of the shell 1 .

[0043] An interface board 33 is provided at the second opening 13. The interface board 33 is usually connected to the outside world, that is, it is easily blocked by the shell 1. The infrared window 4 and the second opening 13 are respectively located on opposite sides of the shell 1, so that the infrared window 4 can be displayed to facilitate the operation of the infrared head.

[0044] The infrared window 4 can be integrally formed with the housing 1 and made of infrared-transmitting material. This increases the cost of the set-top box, but the structure is simpler. On this basis, a light mirror can also be installed inside the housing 1 to achieve a specific indication effect.

[0045] The housing 1 may also be provided with a third opening 18 for mounting the infrared window 4. A bayonet may be provided at the third opening 18, and the infrared window 4 and the housing 1 may be detachably connected by snapping into the bayonet. A light mirror may be mounted on the infrared window 4 to achieve a specific indication effect.

[0046] In some embodiments, an anti-skid groove 212 is provided on one end surface of the bottom plate 21 facing away from the first cavity 11, and an anti-skid pad 5 is provided in the anti-skid groove 212. The anti-skid groove 212 is provided on the end surface of the bottom plate 21 facing away from the first cavity 11. The anti-skid groove 212 can hide the bolts connecting the bottom plate 21 to the housing 1, which not only improves the overall aesthetics of the present application but also reduces the possibility of the bolts falling off. The anti-skid pad 5 is attached to the anti-skid groove 212 by gluing. When the present application is installed, the anti-skid pad 5 can increase the friction between the present application and the table, countertop, or ground, thereby improving the stability of the present application.

[0047] In some embodiments, a first heat dissipation hole is provided at the end of the shell 1 facing away from the base plate 21, a second heat dissipation hole is provided on the base plate 21 of the bracket 2, and a certain number of third heat dissipation holes can also be added on the side of the shell 1 to increase air flow and prevent the internal temperature from rising too high.

[0048] In some embodiments, the bracket 2 is further provided with a step 27 , which is integrally formed with the bracket 2 and surrounds the interface board 33 . The step 27 is adapted to the second opening 13 , thereby eliminating the side gap generated after the bracket 2 and the circuit assembly are installed in the housing 1 .

[0049] In some embodiments, this embodiment provides a communication device, including any of the above-mentioned set-top boxes. The communication device provided in this application has the same technical advantages as any of the above-mentioned set-top boxes, which will not be described in detail here.

[0050] If it is found that in the existing set-top box products, there is a barrel-shaped structure design scheme in which the shell 1, the bracket 2 and the infrared window 4 cooperate with each other to be sealed, and the antenna 32 is built-in, and the structural features are the same or similar to those of this patent, they all adopt the design method and design ideas proposed in this application and fall within the scope of protection of the application.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0052] The foregoing describes only some embodiments of the present application, which are intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features of the present application.

Claims

1. A set-top box, wherein: The set-top box comprises: The shell is provided with a first cavity, a first opening is provided on one end surface of the shell, a second opening is provided on the peripheral side of the shell, and an infrared window is also provided on the peripheral side of the shell; a bracket, located in the first cavity and detachably connected to the housing, wherein a bottom plate of the bracket is adapted to the first opening; and A circuit assembly is detachably connected to the bracket, wherein the circuit assembly includes a circuit board, a plurality of antennas electrically connected to the circuit board, an interface board, and an infrared head, wherein the interface board is adapted to the second opening, and an output end of the infrared head faces the infrared window.

2. The set-top box according to claim 1, wherein: The bracket is provided with a second cavity, and the circuit board is adapted to the second cavity and is detachably connected to the bracket.

3. The set-top box according to claim 1 or 2, wherein: The outer wall of the bracket is provided with a plurality of antenna slots, and the plurality of antennas are detachably connected to the plurality of antenna slots respectively.

4. The set-top box according to claim 1, wherein: One end of the bracket facing away from the bottom plate is provided with an anti-rotation column or an anti-rotation hole, and the inner wall of the shell is correspondingly provided with the other one of the anti-rotation column or the anti-rotation hole, and the anti-rotation column cooperates with the anti-rotation hole.

5. The set-top box according to claim 4, wherein: At least one protrusion is disposed on the circumferential side of the anti-rotation column, and the protrusion extends along the length direction of the anti-rotation column.

6. The set-top box according to claim 1, wherein: The inner wall of the shell has a first limiting rib extending along the height direction of the shell, and the outer wall of the bracket has a second limiting rib extending along the height direction of the bracket, and the first limiting rib and the second limiting rib cooperate with each other.

7. The set-top box according to claim 1, wherein: The inner wall of the shell extends along the height direction of the shell to form one of the slideway or the slide rail, and the outer wall of the bracket extends along the height direction of the bracket to form the other of the slideway or the slide rail, and the slideway and the slide rail cooperate with each other.

8. The set-top box according to claim 1, wherein: One of a convex stop block and a concave stop opening is arranged on the side of the bottom plate facing the first cavity, and the other of a convex stop block and a concave stop opening is arranged on the inner wall of the corresponding shell, and the convex stop block and the concave stop opening cooperate with each other.

9. The set-top box according to claim 1, wherein: The infrared window and the second opening are respectively arranged on opposite sides of the shell, the infrared window and the shell are an integrated structure, or a third opening for installing the infrared window is also opened on the outer side of the shell, and the second opening and the third opening are respectively arranged on opposite sides of the shell.

10. The set-top box according to claim 1, wherein: An end surface of the bottom plate facing away from the first cavity is provided with an anti-skid groove, and an anti-skid foot pad is provided in the anti-skid groove.

11. A communication device, wherein: Comprising a set-top box as claimed in any one of claims 1 to 10.

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