Communication terminal with echo canceller and system thereof

Abstract

The invention discloses a communication terminal with an echo canceller and a system thereof, and relates to the field of communication terminals. The device comprises a handheld communicator and an echo cancellation piece arranged at the rear end of the handheld communicator, a fixed frame seat is movably clamped on the outer surface of the handheld communicator, and the echo cancellation piece is movably clamped in the fixed frame seat. A microphone array is arranged at the bottom of the handheld communicator, the echo cancelling piece comprises an echo cancelling main body, a data transmission head, a transmission pipeline and a microphone echo cancelling chip are arranged in the echo cancelling main body, the data transmission head is movably clamped in the data interface, one end of the transmission pipeline is fixed in the data transmission head, and the other end of the transmission pipeline is connected in the cancelling chip. According to the device, the fixing frame base is arranged to fix the echo cancellation piece and the handheld communicator, so that the device has different effects on different occasions, the echo cancellation piece can be stably fixed, disassembly is not affected, and universality and portability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of communication terminals, and in particular to a communication terminal with an echo canceller and a system thereof. Background Art

[0002] Communication terminals are the direct tools for people to enjoy different information applications. They undertake multiple tasks such as providing users with a good user interface, completing required business functions and accessing communication networks. Communication terminals with echo cancellers integrate echo cancellation technology to improve call quality, reduce or eliminate echoes generated during communication, and thus enhance user experience. Such terminals are widely used in scenarios such as telephones, video conferences, and audio conference systems.

[0003] The principle of echo canceller is mainly based on signal processing technology, especially adaptive filtering technology. When the sound from the speaker propagates through the air to the microphone, an echo is generated. The echo canceller estimates the echo signal using an adaptive algorithm by monitoring the signal emitted by the speaker (reference signal) and the signal received by the microphone (mixed signal, including the original sound and the echo), and subtracts the estimated echo signal from the mixed signal to obtain a clear original sound.

[0004] Existing echo cancellers are generally connected externally to the required communication terminals. However, for some handheld communicators, echo cancellers are only needed in some specific environments, such as noisy environments or some remote meetings. Complete echo cancellation is not required in normal communications such as inspections. In addition, an external echo canceller will increase the weight of the handheld communicator and make it more difficult to carry. In view of the above situation, we propose a communication terminal with an echo canceller and its system to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a communication terminal with an echo canceller and a system thereof, which solves the problem that for some handheld communicators, the echo canceller is only needed in some specific environments, such as noisy environments or some remote meetings, while complete echo cancellation is not required in normal communications such as inspections, and an external echo canceller will increase the weight of the handheld communicator and make it inconvenient to carry.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a communication terminal with an echo canceller and its system, comprising a handheld communicator and an echo canceller arranged at the rear end of the handheld communicator, wherein the outer surface of the handheld communicator is movably connected with a fixed frame seat, and the echo canceller is movably connected in the fixed frame seat. A microphone array is arranged at the bottom of the handheld communicator, and a data interface is provided at the top of the handheld communicator. The echo canceller comprises an echo canceller body and a fixed clamp. The echo canceller body is provided with a data transmission head, a transmission pipeline and a microphone echo cancellation chip, and the microphone echo cancellation chip is arranged in the echo canceller. The data transmission head is movably connected in the data interface, one end of the transmission pipeline is fixedly connected in the data transmission head, and the other end of the transmission pipeline is fixedly connected in the microphone echo cancellation chip.

[0007] Preferably, a power interface and a magnetic hole are provided at the bottom of the handheld communicator, and sound-absorbing wall pads are fixed to the side walls of the microphone array.

[0008] Preferably, the top of the handheld communicator is rotatably connected to a fixed horizontal plate, one end of the fixed horizontal plate is provided with a small fixing bolt, a threaded hole is opened on the top of the handheld communicator, the small fixing bolt is threadedly connected in the threaded hole, and the data transmission head is fixedly connected to the data interface through the fixed horizontal plate.

[0009] Preferably, a T-shaped slot is provided in the fixed frame seat, and a clamping piece is provided on the inner wall of the fixed frame seat. The clamping piece includes a small clamping block and a small spring, one end of the small spring is fixedly connected in the fixed frame seat, and the other end of the small spring is fixedly connected to the back of the small clamping block.

[0010] Preferably, an eliminator fastener is provided at the top end of the back of the fixed frame seat, and the eliminator fastener includes a fixed long block and a fastening long bolt, and the fastening long bolt is movably inserted in the fixed long block. A temporary power supply box is provided at the bottom end of the back of the fixed frame seat.

[0011] Preferably, a power connector and a magnetic block are fixedly connected to the bottom of the fixed frame seat, the power connector is movably plugged into the power interface, and the magnetic block is magnetically attracted in the magnetic hole.

[0012] Preferably, a T-shaped slider is fixedly connected to the front side of the echo cancellation body, a spring-type wire reel is arranged inside the top of the echo cancellation body, a fixed short rod is fixedly connected to the bottom of the echo cancellation body, the fixed short rod is movably inserted in the fixed long block, the fixed short rod is fixedly connected to the fixed long block by tightening long bolts, the transmission pipeline is arranged in the spring-type wire reel, a power spring and a rotating cylinder are arranged in the spring-type wire reel, one end of the power spring is fixedly connected to the shaft column of the spring-type wire reel, the other end of the power spring is fixedly connected to the rotating cylinder, and the transmission pipeline is wound around the outer ring of the rotating cylinder.

[0013] Preferably, a threaded knob is threadedly connected to a side end of the fixing clamp, one end of the threaded knob is rotatably connected to a long clamping plate, and the long clamping plate abuts against the echo cancellation body.

[0014] Preferably, the back of the fixing clamp is rotatably connected to a rotatable fixing block, and the end of the rotatable fixing block away from the fixing clamp is fixedly connected to a long clamping block, and a torsion spring is arranged in the rotatable fixing block, one end of the torsion spring abuts against the fixing clamp, and the other end of the torsion spring abuts against the long clamping block.

[0015] Preferably, the communication system comprises a data input module, a data processing module and a data output module.

[0016] The present invention discloses a communication terminal with an echo canceller and a system thereof, which have the following beneficial effects:

[0017] 1. The communication terminal with echo canceller and the system thereof, by setting a fixed frame seat, fixes the handheld communicator and the echo canceller together, so that the device has different forms in different states: when the echo canceller is needed, the device can be fixed on a pocket or clothes when moving by cooperating with a clamping piece, and the clamping piece can be removed and placed on a table when sitting, and the communication terminal can be removed when the echo canceller is not needed, which can be fully fixed and convenient to carry, and can be disassembled when not needed, and the versatility is enhanced.

[0018] 2. This communication terminal with an echo canceller and its system, by setting the transmission line tube in a spring-type line reel, the line tube can be pulled out, so that when the device is fixed on clothes or pockets, the handheld communicator can be pulled out from the fixed frame seat for use anytime and anywhere, which is convenient for use when standing or walking.

[0019] 3. The communication terminal with an echo canceller and its system make the echo of the communication terminal smaller and the sound source more stable by setting a microphone array and arranging sound-absorbing wall pads on the four walls of the microphone array.

[0020] 4. The communication terminal with an echo canceller and the system thereof, by providing a temporary power box and a power connector, makes the battery life of the communication terminal stronger, and further enhances the practicality of the communication terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall side structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall front structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the overall explosion structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the overall structure of the handheld communicator of the present invention;

[0026] Figure 5 It is a partial structural schematic diagram of the handheld communicator of the present invention;

[0027] Figure 6 It is a schematic diagram of the overall structure of the fixed frame and the echo cancellation member of the present invention;

[0028] Figure 7 This is a schematic diagram of the overall structure of the fixed frame seat of the present invention;

[0029] Figure 8 This is a schematic diagram of the back structure of the fixed frame seat of the present invention;

[0030] Fig. 9 It is a schematic diagram of the overall structure of the echo cancellation component of the present invention;

[0031] Fig.10 This is a schematic diagram of the exploded structure of the fixing clamp of the present invention;

[0032] Fig.11 This is a schematic diagram of the structure of the spring-type wire reel of the present invention;

[0033] Fig.12 It is a schematic diagram of the rotating cylinder structure of the present invention;

[0034] Fig.13 It is a schematic diagram of digital signal and electrical signal transmission of the present invention;

[0035] Fig.14It is a schematic diagram of the transmission of electrical signals and sound signals of the present invention.

[0036] In the figure: 1. Handheld communicator; 11. Microphone array; 12. Power interface; 13. Magnetic hole; 14. Fixed horizontal plate; 141. Small fixing bolt; 142. Threaded hole; 15. Data interface; 2. Echo cancellation element; 21. Echo cancellation body; 211. T-shaped slider; 212. Data transmission head; 213. Transmission pipeline; 214. Spring-type wire reel; 2141. Power spring; 2142. Rotating cylinder; 215. Microphone echo Sound elimination chip; 216, fixed short rod; 22, fixed clamp; 221, threaded knob; 222, long clamp; 223, long clamp block; 224, rotating fixed block; 225, torsion spring; 3, fixed frame seat; 31, T-slot; 32, clamp; 321, small clamp block; 322, small spring; 33, power connector; 34, eliminator fastener; 341, fixed long block; 342, fastening long bolt; 35, temporary power box; 36, magnetic block. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The embodiments of the present application provide a communication terminal with an echo canceller and a system thereof, thereby solving the problem that for some handheld communicators, the echo canceller is only needed in some specific environments, such as noisy environments or some remote meetings, while complete echo cancellation is not required in normal communications such as inspections, and an external echo canceller will increase the weight of the handheld communicator and make it inconvenient to carry.

[0039] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] The embodiment of the invention discloses a communication terminal with an echo canceller and a system thereof.

[0041] According to the attached Figure 1-14As shown, the handheld communicator 1 includes a handheld communicator 1 and an echo canceller 2 disposed at the rear end of the handheld communicator 1. The outer surface of the handheld communicator 1 is movably connected with a fixed frame seat 3. The echo canceller 2 is movably connected to the fixed frame seat 3. A microphone array 11 is disposed at the bottom of the handheld communicator 1. A data interface 15 is provided at the top of the handheld communicator 1. The echo canceller 2 includes an echo canceller body 21 and a fixed clamp 22. The echo canceller body 21 includes a data transmission head 212, a transmission pipeline 213 and a microphone echo cancellation chip 215. The microphone echo cancellation chip 215 is disposed in the echo canceller 2. The data transmission head 212 is movably connected to the data interface 15. One end of the transmission pipeline 213 is fixedly connected to the data transmission head 212, and the other end of the transmission pipeline 213 is fixedly connected to the microphone echo cancellation chip 215. The microphone array 11 makes the sound receiving performance of the device better, and it is easier for the microphone echo cancellation chip 215 in the echo cancellation component 2 to collect microphone data and eliminate echoes. The collected data is transmitted from the handheld communicator 1 to the microphone echo cancellation chip 215 through the transmission pipeline 213 to eliminate echoes. The echo cancellation component 2 is fixedly connected to the fixed frame seat 3 and has a strong fixing effect. The handheld communicator 1 is configured to be a sliding card-type so that it is convenient to be pulled out from the fixed frame seat 3 for use.

[0042] A power interface 12 and a magnetic hole 13 are provided at the bottom of the handheld communicator 1. Sound-absorbing wall pads are fixed to the side walls of the microphone array 11. The arrangement of the sound-absorbing wall pads enables the microphone array 11 to receive sound only from the opening, thereby reducing echoes transmitted from other places.

[0043] A fixed horizontal plate 14 is rotatably connected to the top of the handheld communicator 1, and a small fixing bolt 141 is provided at one end of the fixed horizontal plate 14. A threaded hole 142 is provided at the top of the handheld communicator 1, and the small fixing bolt 141 is threadedly connected in the threaded hole 142. The data transmission head 212 is fixedly connected to the data interface 15 through the fixed horizontal plate 14. The setting of the fixed horizontal plate 14 makes the data transmission head 212 more firmly fixedly connected to the data interface 15, and the data transmission head 212 will not fall off when the handheld communicator 1 is pulled out during use.

[0044] A T-slot 31 is provided in the fixed frame seat 3, and a clamping member 32 is provided on the inner wall of the fixed frame seat 3. The clamping member 32 includes a small clamping block 321 and a small spring 322. One end of the small spring 322 is fixedly connected to the fixed frame seat 3, and the other end of the small spring 322 is fixedly connected to the back of the small clamping block 321. The small clamping block 321 of the clamping member 32 is used to increase friction, which is one of the guarantees that the handheld communicator 1 will not slip out when in the fixed frame seat 3. The T-slot 31 enables the echo cancellation member 2 to be quickly plugged into the fixed frame seat 3, which is convenient for fixing and disassembly.

[0045] An eliminator fastener 34 is provided at the top of the back of the fixed frame seat 3. The eliminator fastener 34 includes a fixed long block 341 and a fastening long bolt 342. The fastening long bolt 342 is movably inserted in the fixed long block 341. A temporary power supply box 35 is provided at the bottom of the back of the fixed frame seat 3. The eliminator fastener 34 is the main fixing source of the echo eliminator 2 in the fixed frame seat 3 to prevent it from loosening.

[0046] A power connector 33 and a magnetic block 36 are fixedly connected to the bottom of the fixed frame 3. The power connector 33 is movably plugged into the power interface 12, and the magnetic block 36 is magnetically attracted to the magnetic hole 13. The magnetic block 36 allows the handheld communicator 1 to be magnetically attracted to the fixed frame 3, which is the second guarantee that the handheld communicator 1 will not slip out when in the fixed frame 3. The handheld communicator 1 requires a certain amount of external force to leave the fixed frame 3, but it will not be too tight to be taken out. The power connector 33 allows the fixed frame 3 to be used as a charger for the handheld communicator 1.

[0047] A T-shaped slider 211 is fixedly connected to the front of the echo cancellation body 21, a spring-type wire reel 214 is arranged inside the top of the echo cancellation body 21, a fixed short rod 216 is fixedly connected to the bottom of the echo cancellation body 21, the fixed short rod 216 is movably inserted into the fixed long block 341, the fixed short rod 216 is fixedly connected to the fixed long block 341 by fastening long bolts 342, the T-shaped slider 211 is slidably connected to the T-shaped slot 31, the transmission pipeline 213 is arranged in the spring-type wire reel 214, a power spring 2141 and a rotating cylinder 2142 are arranged in the spring-type wire reel 214, one end of the power spring 2141 is fixedly connected to the shaft column of the spring-type wire reel 214, and the other end of the power spring 2141 is fixedly connected to the rotating cylinder 2142 The outer ring of the rotating cylinder 2142 is wound with a transmission pipeline 213, and the spring-type wire reel 214 automatically recovers the transmission pipeline 213 by gathering and releasing the potential energy of the power spring 2141. A group of transmission pipelines 213 is arranged on the rotating cylinder 2142, and a group of transmission pipelines 213 is also arranged between the spring-type wire reel 214 and the microphone echo cancellation chip 215. The two groups of transmission pipelines 213 are connected by the spring-type wire reel 214, which can make the echo cancellation component 2 fast during installation and disassembly, and can ensure that it will not fall out of the fixed frame seat 3. The establishment of the spring-type wire reel 214 enables the transmission pipeline 213 to be extended and automatically recovered, and the fixed short rod 216 is the main fixing component that fixes the echo cancellation body 21 to the fixed frame seat 3.

[0048] The side end of the fixing clamp 22 is threadedly connected to a threaded knob 221, and one end of the threaded knob 221 is rotatably connected to a long clamp 222, which abuts against the echo cancellation body 21. The fixing clamp 22 is also detachable, which is convenient for replacement, transportation and storage. When you need to go out, install the fixing clamp 22 and fix it on your pocket and clothes.

[0049] The back of the fixing clamp 22 is rotatably connected to a rotatable fixing block 224, and one end of the rotatable fixing block 224 away from the fixing clamp 22 is fixedly connected to a long clamping block 223. A torsion spring 225 is arranged in the rotatable fixing block 224, and one end of the torsion spring 225 abuts against the fixing clamp 22, and the other end of the torsion spring 225 abuts against the long clamping block 223. The cooperation between the torsion spring 225 and the long clamping block 223 makes the fixing clamp 22 elastic and can be clamped on a pocket.

[0050] A communication system includes a data input module, a data processing module and a data output module. In the receiving mode of the communication terminal, the data input module is an antenna. The antenna receives a digital signal and inputs the digital signal to the data processing module. The decoder in the data processing module decodes the digital signal into an electrical signal and outputs it to a speaker serving as the data output module, converting the electrical signal into a sound signal for signal output. In the sending mode of the communication terminal, the data input module is a microphone array 11. The microphone array 11 receives the sound signal and converts it into an electrical signal and transmits it to an encoder serving as the data processing module. The encoder converts the electrical signal into a digital signal and transmits it to the antenna serving as the data output module for sending and outputting the digital signal.

[0051] In summary, the basic principles and main features of the present invention and the advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A communication terminal with an echo canceller, comprising a handheld communicator (1) and an echo canceller (2) arranged at the rear end of the handheld communicator (1), characterized in that: The outer surface of the handheld communicator (1) is movably connected to a fixed frame seat (3), and the echo canceller (2) is movably connected to the fixed frame seat (3); The handheld communicator (1) is provided with a microphone array (11) at the bottom, the handheld communicator (1) is provided with a data interface (15) at the top, the echo cancellation component (2) comprises an echo cancellation body (21) and a fixing clamp (22), and the echo cancellation body (21) is provided with a data transmission head (212), a transmission pipeline (213) and a microphone echo cancellation chip (215); The microphone echo cancellation chip (215) is arranged in the echo cancellation component (2), the data transmission head (212) is movably connected in the data interface (15), one end of the transmission pipeline (213) is fixedly connected in the data transmission head (212), and the other end of the transmission pipeline (213) is fixedly connected in the microphone echo cancellation chip (215).

2. A communication terminal with an echo canceller according to claim 1, characterized in that: The bottom of the handheld communicator (1) is provided with a power interface (12) and a magnetic hole (13), and the side walls of the microphone array (11) are fixed with sound-absorbing wall pads.

3. A communication terminal with an echo canceller according to claim 1, characterized in that: The top of the handheld communicator (1) is rotatably connected to a fixed horizontal plate (14), one end of the fixed horizontal plate (14) is provided with a small fixing bolt (141), a threaded hole (142) is provided on the top of the handheld communicator (1), the small fixing bolt (141) is threadedly connected in the threaded hole (142), and the data transmission head (212) is fixedly connected in the data interface (15) through the fixed horizontal plate (14).

4. A communication terminal with an echo canceller according to claim 1, characterized in that: A T-shaped groove (31) is provided in the fixed frame seat (3), and a clamping member (32) is provided on the inner wall of the fixed frame seat (3). The clamping member (32) comprises a small clamping block (321) and a small spring (322), one end of the small spring (322) is fixedly connected in the fixed frame seat (3), and the other end of the small spring (322) is fixedly connected to the back of the small clamping block (321).

5. A communication terminal with an echo canceller according to claim 4, characterized in that: The top of the back of the fixed frame seat (3) is provided with an eliminator fastener (34), the eliminator fastener (34) comprises a fixed long block (341) and a fastening long bolt (342), the fastening long bolt (342) is movably inserted into the fixed long block (341), and the bottom of the back of the fixed frame seat (3) is provided with a temporary power supply box (35).

6. A communication terminal with an echo canceller according to claim 5, characterized in that: A power connector (33) and a magnetic block (36) are fixedly connected to the bottom of the fixed frame seat (3); the power connector (33) is movably plugged into the power interface (12), and the magnetic block (36) is magnetically attracted into the magnetic hole (13).

7. A communication terminal with an echo canceller according to claim 5, characterized in that: The front of the echo cancellation body (21) is fixedly connected to a T-shaped slider (211), the top of the echo cancellation body (21) is provided with a spring-type wire reel (214), the bottom of the echo cancellation body (21) is fixedly connected to a fixed short rod (216), the fixed short rod (216) is movably inserted into a fixed long block (341), and the fixed short rod (216) is fixedly connected to the fixed long block (341) by a fastening long bolt (342); The transmission pipeline (213) is arranged in a spring-type wire reel (214), and a power spring (2141) and a rotating cylinder (2142) are arranged in the spring-type wire reel (214), one end of the power spring (2141) is fixedly connected to the shaft column of the spring-type wire reel (214), and the other end of the power spring (2141) is fixedly connected to the rotating cylinder (2142), and the transmission pipeline (213) is wound around the outer ring of the rotating cylinder (2142).

8. A communication terminal with an echo canceller according to claim 1, characterized in that: The side end of the fixing clamp (22) is threadedly connected to a threaded knob (221), one end of the threaded knob (221) is rotatably connected to a long clamping plate (222), and the long clamping plate (222) abuts against the echo cancellation body (21).

9. A communication terminal with an echo canceller according to claim 8, characterized in that: The back of the fixing clamp (22) is rotatably connected to a rotatable fixing block (224); one end of the rotatable fixing block (224) away from the fixing clamp (22) is fixedly connected to a long clamp block (223); a torsion spring (225) is arranged inside the rotatable fixing block (224); one end of the torsion spring (225) abuts against the fixing clamp (22), and the other end of the torsion spring (225) abuts against the long clamp block (223).

10. A communication system, comprising a communication terminal with an echo canceller according to any one of claims 1 to 9, characterized in that: It includes a data input module, a data processing module and a data output module.

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