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46results about How to "Increase the sense of design" patented technology

Two-dimensional code publishing program and two-dimensional code decoding program

A two-dimensional code publishing program that provides display of beautiful two-dimensional codes with homogeneity and a high sense of design, and a two-dimensional code decoding program that decodes bit strings expressed as two-dimensional codes in various situations.In a display of cells having a color with a low visibility against the blank area surrounding the two-dimensional code, a contrast is set between the gradation of the color component having a gradation close to that of the blank area and / or in a display of cells having a color with a high visibility against the blank area surrounding the two-dimensional code, the contrast is reduced between the gradation of the color component having a gradation far from that of the blank area.
Owner:KIUCHI YUTAKA +1

Process of making synthetic leather with metal surface

InactiveCN101046070AObvious three-dimensional textureIncrease the sense of designTextile decorationMetal foilAdhesive
The process of making synthetic leather with metal surface includes the following steps: conveying the substrate in certain direction; coating one layer of adhesive onto the surface of the substrate; conveying transfer paper comprising one layer of support material and one layer of attached metal foil to make the metal foil contact with the adhesive layer; and tearing off the support material during further conveyance and adhering the metal foil onto the substrate. Thus produced synthetic leather has obvious stereo grains on the metal surface, special hierarchy feeling and various patterns.
Owner:赵国量

Elasticity intelligent-adjustment watchband

The invention relates to an elasticity intelligent-adjustment watchband. The elasticity intelligent-adjustment watchband of the present invention comprises a band body and an adjusting device, and theadjusting device comprises a fixing plate and an adjusting cavity arranged in parallel, the fixing plate and the adjusting cavity are connected by a telescopic belt; and a telescopic tube is disposedbetween the fixing plate and the adjusting cavity, and one end of the telescopic tube is fixedly connected with an adjusting tube at the adjusting cavity; a regulating piston plate is slidably disposed in the adjusting cavity; a pressure-sensing control cavity made of a hollow elastic material is disposed st the adjusting device, and the pressure-sensing control chamber and the adjusting tube arecommunicated by a rigid sliding cylinder; a sealing piston plate is slidably disposed in the rigid sliding cylinder, and the sealing piston plate is connected to a current-limiting slider through a connecting rod, and the regulating cavity, the telescopic tube and the pressure-sensing control cavity are filled with adjusting liquid. The watchband can intelligently adjust the elasticity of the watchband to ensure the effective fit of a smart product and the skin, and provides users with sufficient comfort level.
Owner:滨州高新材料产业园有限公司

Multifunctional on-tilting cup

The invention discloses a multifunctional non-tilting cup which comprises a medicine storage cup cover, a cup body and a size-adjustable non- tilting cup holder, the medicine storage cup cover comprises a medicine cover, a medicine box and a medicine box base, the medicine box stores medicine in a separately mode through a partition plate, and the medicine cover is connected to the medicine box ina screwed mode. The medicine box base is fixed to the bottom of the medicine box, and is connected to an upper cup opening of a cup body in a screwed mode. The size-adjustable non- tilting cup holderincludes a telescopic cup body locking device and a negative pressure fixed base, a driving rotating ring is rotated, a telescopic locking plate is retracted or extended outwards, and cups of different sizes can be fixed. The negative pressure fixed base comprises a suction cup, an air bag and a sealing ring, and a sealing ring is rotated to block a lower ventilation hole C, and the suction cup is pressed to a supporting platform and the air bag is squeezed at the same time, and a negative pressure is generated in a cavity of the suction cup. The negative pressure fixed base is fixed on the supporting platform, and the sealing ring is rotated to open the lower ventilation hole C, and the air pressure inside and outside the cavity is uniform, and the adsorption is released. The multifunctional non-tilting cup integrates medicine storage, fixing different size cups and anti-tilting in one body, the functions are various, and the application range is wide.
Owner:NANJING FORESTRY UNIV

Cushioning shoe soles with plurality of independent small air bags

InactiveCN108813807AMutual extrusion cushioning effect is goodRealize the cushioning effectSolesCushioningEngineering
The invention discloses cushioning shoe soles with a plurality of independent small air bags. Each shoe sole comprises a shoe sole body, wherein a cushioning part is arranged on the shoe sole body, and the cushioning part is mainly composed of the plurality of small air bags with independent air chambers. For the shoe soles with the structure, the cushioning parts realize the cushioning effect through the elastic deformation formed by the small air bags, the plurality of small air bags extrude with each other, so that the cushioning is good, and meanwhile, the integral cushioning effect is notinfluenced if a minority of the small air bags are punctured.
Owner:潘锦浩

Production process of belt end and belt end produced according to same

The invention relates to the production process of a belt end and a belt end produced according to the production process. The production process of the belt end comprises the following steps: overlapping a colloid layer, a pattern layer and a transparent layer at a preset part of a belt body, wherein the surface of the pattern layer comprises a plurality of first parts and a plurality of second parts and the first parts and the second parts are arranged on the pattern layer in a staggered manner; then positioning the colloid layer, the pattern layer and the transparent layer at the preset part of the belt body through performing hot pressing at least once and forming a plurality of concave parts and a plurality of convex parts on the surface of the transparent layer, wherein the concave parts and the convex parts are distributed on the surface of the transparent layer in a staggered manner and the line of sight of a user is refracted to correspond to the first parts or the second parts respectively with the angel change. Therefore the visual effect of color change is generated when the user sees the belt end produced in the production process with lines of sight from different angles.
Owner:TAIWAN PAIHO LTD

Intelligent terminal, and control method and system of intelligent terminal

The invention relates to the technical field of an intelligent terminal and discloses an intelligent terminal, and a control method and a control system of the intelligent terminal. The intelligent terminal comprises a touch screen and a chip, and also comprises side screens arranged on grooves in the two sides of the touch screen, wherein each side screen comprises an OLED layer, a side screen circuit and a touch sensor; the side screen circuit and the touch sensor are electrically connected with the chip; the OLED layer is used for displaying an intelligent operating system of the intelligent terminal and an applied operating control interface; the touch sensor is used for detecting touch operation of a user on the control operating interface displayed by the OLED layer; and the chip is used for generating the intelligent operating system and the applied operating control interface which are displayed by the OLED layer, as well as processing the touch operation detected by the touch sensor and correspondingly controlling the intelligent operating system and the applied operating control interface which are displayed by the touch screen. The control convenience, the interestingness and the working efficiency of the intelligent terminal are improved.
Owner:深圳酷赛通信科技有限公司

Novel ceramic plate curtain wall pendant system

The invention discloses a novel ceramic plate curtain wall pendant system. An angle steel connecting piece is connected with a square steel upright post through a transversely arranged angle steel base, and a pendant base is connected with the angle steel connecting piece through a fixing bolt; hooks are respectively arranged at the upper end and the lower end of the pendant base, adaptive clamping grooves are formed in the inner side of the decorative pendant, and the decorative pendant and the pendant base are hung and installed through the cooperation of the corresponding clamping grooves on the upper side and the lower side with the hooks; and an adjusting seat is arranged on the inner side of the upper clamping groove of the decorative pendant, and the height of the decorative pendanton the pendant base is adjusted through limiting screws and adjusting bolts distributed on the adjusting seat. According to the novel ceramic plate curtain wall pendant system, the in-out effect of the ceramic plate finishing surface can be achieved, meanwhile, transverse decorative lines and lamp strips can be additionally arranged, the structure is simple, the construction is convenient, the cost is saved, the installation is facilitated, and the duration for construction is shortened.
Owner:无锡金城幕墙装饰工程有限公司

Cover opening structure of intelligent garbage can cover

The invention discloses a cover opening structure of an intelligent garbage can cover. The cover opening structure comprises a garbage can cover and a garbage can body, the garbage can cover is movably connected with the garbage can body through an integrated mounting assembly, lifting handles are arranged at the upper ends of the two sides of the garbage can body, and a cover plate is rotationally connected with the upper end surface of the garbage can cover through connecting lugs; clamping grooves are formed in the connecting lugs, a drainage plate is connected with the edge of the cover plate, a thermosensitive device is arranged on the end surface of the closing position of the cover plate, a throwing opening is formed in the opening position of the cover plate, the rotating input endof the cover plate is connected with a telescopic mechanical arm through a suction cup, and the rotating input end of the telescopic mechanical arm is connected with a driving device; and the drivingdevice comprises a motor and a right-angle corner device, the rotating input end of the telescopic mechanical arm is connected with the rotating output end of the right-angle corner device through areduction gear. According to the cover opening structure of the intelligent garbage can cover, the situation that hands are beaten when the cover is opened is completely avoided, the satisfaction degree of user product experience is comprehensively improved, and selling points are increased for products.
Owner:SHANGHAI TOWNEW INTELLIGENT TECH CO LTD

Containing device and manufacturing method thereof

The invention provides a containing device and a manufacturing method thereof. The containing device is formed by mutually combining a plurality of cloth rags, wherein the welding positions among the cloth rags, the peripheries of the cloth rags and the bending positions of the cloth rags are formed through ultrasonic welding; and containing spaces are formed among the cloth rags. Meanwhile, the welding positions formed through the ultrasonic welding are smooth, so that the containing device has good smoothness and is easy to fold and package. Furthermore, ruffles can be further machined at the welding positions to improve the attractiveness. With the adoption of the containing device and the manufacturing method thereof provided by the invention, the binding operation can be saved, so as to simplify the manufacturing process, improve the production efficiency, save the labor, reduce the manufacturing cost, and further improve visual aesthetics and decorating effects.
Owner:马承睿

Wireless power supply and electric control system for toilet seat cover

The invention discloses a wireless power supply and electric control system for a toilet seat cover, which comprises a seat cover assembly, an electronic device and a direct current power supply device, wherein the seat cover assembly comprises a seat ring and a cover body, the cover body can be operated to pivot and swing relative to the seat ring, when the cover body is in a covering state relative to the seat ring, the cover body covers the seat ring, and when the cover body is in an opening state relative to the seat ring, the cover body does not cover the seat ring, so that the seat ring is exposed outwards; the electronic device is arranged in the seat cover assembly and comprises an electric control unit and an electric assembly, and the electric control unit transmits an electric control signal to the electric assembly to enable the electric assembly to act; the direct current power supply device is arranged in the seat cover assembly and is electrically connected to the electronic device; and the direct-current power supply device comprises a rechargeable battery, and the rechargeable battery provides electric power needed by operation of the electronic device. The wireless power supply and electric control system for the toilet seat cover is not exposed or externally connected with a power line, so that the accident of electric shock of a user can be avoided.
Owner:PURITY XIAMEN SANITARY WARE

Self-locking draw bar and draw-bar box

The invention relates to a self-locking draw bar and a draw-bar box. The self-locking draw bar comprises an outer pipe, an inner pipe arranged in the outer pipe in a sleeving manner, and locking buckles rotationally mounted at the bottom end of the inner pipe; a plurality of outer pipe locking buckle lock holes corresponding to the locking buckles in position are formed in the side surface of theouter pipe; when the locking buckles re located in the outer pipe locking buckle lock holes, the locking buckles rotate through the gravity of the locking buckles and are buckled in the outer pipe locking buckle lock holes or released from the outer pipe locking buckle lock holes through changes of different angles of the draw bar. Self-locking of the draw bar is completed through the cooperationof the locking buckles with the outer pipe and the inner pipe, numerous parts such as a button, a spring, a sliding block, a pressing rod and a pressing foot of a traditional draw bar are not needed;the structure is simple, the weight of the pull rod is reduced, manufacturing cost is reduced, the production process is simplified, the overall appearance design feeling of the pull rod is enhanced,and use is convenient for users.
Owner:曾冰

Self-locking drawbar and draw-bar box

The invention relates to a self-locking drawbar and a draw-bar box. The self-locking drawbar comprises an outer pipe and an inner pipe, wherein the outer pipe sleeves the inner pipe, a plurality of outer pipe stop and receive buckle keyholes are formed in the side surface of the outer pipe, a stop and receive buckle is fixed to the bottom of the inner pipe, when the drawbar is inclined, the stop and receive buckle is inclined by gravity, bottom protrusions slide into the outer pipe stop and receive buckle keyholes to clamp the inner pipe, and thus the inner pipe cannot go down; when the innerpipe is pulled upwards, the stop and receive buckle slides out of the outer pipe stop and receive buckle keyholes by the downward force of the side wall of the outer pipe, and the inner pipe is pulledupwards freely. Self-locking of the drawbar is accomplished through matching of the stop and receive buckle with the outer pipe and the inner pipe, manifold components and parts of a traditional drawbar such as a button, a spring, a sliding block, a pressing rod and a pressing foot are not needed, the structure is simple, the weight of the drawbar is reduced, the manufacturing cost is reduced, the production process is simplified, the overall design sense of the drawbar is enhanced, and the self-locking drawbar is convenient for users to use.
Owner:曾冰

Atmosphere lamp system associated with traffic information and method for controlling atmosphere lamp

The invention relates to an atmosphere lamp system associated with traffic information. The system comprises an atmosphere lamp, which is disposed in a vehicle; and a control device, which is configured to control the color of the atmosphere lamp, wherein the control device is configured to receive the road traffic information from a satellite navigation system and control the atmosphere lamp to represent the road traffic information of the whole journey through different colors according to the road traffic information from the departure place to the destination of the vehicle. The invention also relates to a method for controlling the atmosphere lamp by using the atmosphere lamp system. According to the atmosphere lamp system, the road traffic information is combined with the atmosphere lamp, so that the atmosphere lamp can display the traffic condition from the current position of the vehicle to the destination position through different colors (such as red, yellow and green), a driver can pay attention to the traffic condition, meanwhile, the integration of the vehicle is improved, the requirement for mobile phone navigation during driving is lowered, and the design feeling of the atmosphere lamp is improved.
Owner:DAIMLER AG

Production process of belt end and belt end produced according to same

The invention relates to the production process of a belt end and a belt end produced according to the production process. The production process of the belt end comprises the following steps: overlapping a colloid layer, a pattern layer and a transparent layer at a preset part of a belt body, wherein the surface of the pattern layer comprises a plurality of first parts and a plurality of second parts and the first parts and the second parts are arranged on the pattern layer in a staggered manner; then positioning the colloid layer, the pattern layer and the transparent layer at the preset part of the belt body through performing hot pressing at least once and forming a plurality of concave parts and a plurality of convex parts on the surface of the transparent layer, wherein the concave parts and the convex parts are distributed on the surface of the transparent layer in a staggered manner and the line of sight of a user is refracted to correspond to the first parts or the second parts respectively with the angel change. Therefore the visual effect of color change is generated when the user sees the belt end produced in the production process with lines of sight from different angles.
Owner:TAIWAN PAIHO LTD

Bone conduction bone pattern encryption and unlocking system and method for handheld mobile devices

The present invention relates to a bone conduction bone pattern encryption and unlocking system and method for a hand-held mobile device, comprising: an ultrasonic generator, which is used to emit sound waves of a specific frequency, and an ultrasonic receiver, which is used to receive detection ultrasonic waves , driver chip, the processor is used to provide driving power and perform data calculation according to a preset program, handheld mobile device, the handheld mobile device is used to provide driving power for the driver chip and perform data interaction with the driver chip, conduction using bone conduction technology Ultrasound, so that the ultrasonic waves emitted by the sound wave generator can propagate to the joints farther away from the handheld mobile device to generate more echoes, so that the encryption security is improved, and the ultrasonic conduction echo time caused by the uniqueness of each person's joint bone length is used Differences are used to improve encryption security, and the ultrasonic echo noise ripple caused by the uniqueness of each person's joint bone shape and texture is used to further improve encryption security.
Owner:浙江音置声学科技有限公司

Automobile headlamp convenient to illuminate in wild

The invention discloses an automobile headlamp convenient to illuminate in the wild. The automobile headlamp comprises an outer shell, a wire frame is fixedly connected to the inner wall of the outershell, a dipped headlight is fixedly connected to one end of the wire frame, a high beam light is fixedly connected to the middle of the wire frame, and a rotating support is fixedly connected to oneend, away from the dipped headlight, of the wire frame. An electric rotating table is fixedly connected to the top of the rotating support, an upper rotating column is fixedly connected to the bottomof the electric rotating table, and one end, away from the electric rotating table, of the upper rotating column penetrates the rotating support and rotationally connected with the rotating support. The automobile headlamp has advantages that illumination of two sides of an automobile body can be realized, and convenience is provided for a driver to drive in the wild and get off to observe environmental conditions of two sides of the automobile body; in addition, the automobile headlamp is reasonable in setting, the occupied space of the headlamp can be effectively reduced, an automobile headdesign space is increased, and design enhancement is realized.
Owner:JIUJIANG VOCATIONAL & TECHN COLLEGE

Perforated leather with ramp texture and preparation method thereof

PendingCN114055900AComplete and stable fitPhysical properties are not attenuatedSynthetic resin layered productsVehicle componentsPolymer scienceHot melt
The invention provides perforated leather with a ramp texture. The perforated leather comprises a bottom cloth layer, a hot melt adhesive layer connected with the bottom cloth layer, a base cloth layer connected with the hot melt adhesive layer, a foaming layer connected with the base cloth layer, a surface layer connected with the foaming layer and a surface treatment layer connected with the surface layer, wherein the base cloth layer and the hot melt adhesive layer are prepared by a hot laminating method; the base cloth layer, the foaming layer and the surface layer are prepared by a coating method; the surface treatment layer, the surface layer, the foaming layer and the base cloth layer are sequentially punched to obtain a bottom blank; and the bottom blank and the hot melt adhesive layer form an integrated structure through the hot laminating method; The perforated leather is prepared by the hot laminating method and the coating method and is obtained after punching; and by designing the pattern of gradiently-changing back pasting bottom cloth and the polyurethane bottom blank and combining an original single color and an original single pattern, a multi-layer pattern and stereoscopic impression are realized.
Owner:SEIREN SUZHOU CO LTD

DNA module quick-fabrication room

The invention belongs to the technical field of prefabricated type buildings, and particularly relates to a DNA module quick-fabrication house. The DNA module quick-fabrication house is formed by arranging and combining a plurality of DNA unit modules; each DNA unit module comprises two first-layer standard box modules, two second-layer standard box modules, two roof standard box modules, a first-layer aisle standard box module, a second-layer aisle standard box module and a roof aisle standard box module; the standard box modules are combined in series or in parallel or in an overlapping modeto form the DNA module quick-fabrication house; left and right adjacent standard box modules forming the DNA module quick-fabrication house are fixedly connected by metal connecting bands and straight nails through left and right adjacent wood columns; and upper and lower adjacent layers of standard box modules forming the quick-fabrication house are fixedly connected by metal connecting pieces and bolts through wood column reserved mounting openings. The DNA module quick-fabrication house has the beneficial effects that the modulus is unified, the factory prefabrication rate can be increasedthrough same components, the construction technology is simplified, and social resources are saved.
Owner:天津泰明加德低碳住宅科技发展有限公司

Preparation method of floors with different surface brightness and haze

The invention discloses a preparation method of floors with different surface brightness and haze. The method comprises the following steps: firstly, printing a pattern layer on the surface of a base material through a digital printer, coating a wear-resistant layer on the surface of the pattern layer, coating UV finish paint on the surface of the wear-resistant layer, and carrying out UV curing. According to the preparation method provided by the invention, molded films with different thicknesses can be used according to different embossing depths, a design pattern is carved on an embossing roller, when half-dry UV finish paint enters a film press, after the half-dry UV finish paint is embossed by the embossing roller, UV paint extrusion is caused due to the fact that UV is not cured and rolled, so that positions with different surface depths and deep embossing are thinned and brightened by UV, and positions with shallow embossing are kept in haze, thus the brightness and haze deviation is generated, different brightness and haze gloss is formed on the surfaces of the floors after UV curing, so that the design feeling is improved; and a roller engraved with lines with different depths can be used for being matched with wear-resistant paint with different brightness and haze to carry out multiple times of coating to obtain the wear-resistant layer, and different brightness and haze glosses can be formed on the surface.
Owner:FOSHAN SHUNDE PURETE MECHANICAL CO LTD

Door body

Embodiments provide a door body for opening and closing a front part of an article body, whereby the door body includes a front panel constituting a front of the door body, a frame supporting at least a part of an outside edge of the front panel, and a back panel constituting a back of the door body. According to at least one embodiment, the frame includes a support plate extending to an inside of the article body in a substantially vertical direction, the front panel is bonded to the support plate with a double-sided pressure-sensitive adhesive film, the double-sided pressure-sensitive adhesive film extends from a leading edge of the support plate to an inside of the door body, and a radius of curvature of a front side corner of the leading edge of the support plate is 0.1 to 10 mm.
Owner:RIKEN TECHNOS CORP

Shoe with coated welt

Provided is a shoe with a coated welt. The shoe comprises a shoe sole, a shoe upper arranged on the shoe sole, and a welt arranged between the shoe sole and the shoe upper, wherein the welt comprisesa welt body and a coated piece, the welt body is made from a thermoplastic material and prepared by a means of extrusion molding, the welt body is provided with a bottom surface corresponding to the shoe sole, a top surface opposite to the bottom surface, and an outer wall face and an inner wall face, the outer wall face and the inner wall face are connected to the portion between the bottom surface and the top surface and oppositely arranged, the inner wall face is opposite to the shoe upper, the coated piece is arranged on the welt body and at least fully coats the top surface and the outerwall face, the coated piece is flexible, and comprises at least one coating layer and an explicit pattern, the coating layer is made from different materials of the welt body, the explicit pattern isformed on the coating layer and arranged opposite to at least one of the top surface and the outer wall face, and the coating piece is not a successive extension structure of any one of the shoe sole,the shoe upper and the welt body.
Owner:HIGH CHANCE WORLDWIDE

Smart tightness adjustment watch strap

The invention relates to an elasticity intelligent-adjustment watchband. The elasticity intelligent-adjustment watchband of the present invention comprises a band body and an adjusting device, and theadjusting device comprises a fixing plate and an adjusting cavity arranged in parallel, the fixing plate and the adjusting cavity are connected by a telescopic belt; and a telescopic tube is disposedbetween the fixing plate and the adjusting cavity, and one end of the telescopic tube is fixedly connected with an adjusting tube at the adjusting cavity; a regulating piston plate is slidably disposed in the adjusting cavity; a pressure-sensing control cavity made of a hollow elastic material is disposed st the adjusting device, and the pressure-sensing control chamber and the adjusting tube arecommunicated by a rigid sliding cylinder; a sealing piston plate is slidably disposed in the rigid sliding cylinder, and the sealing piston plate is connected to a current-limiting slider through a connecting rod, and the regulating cavity, the telescopic tube and the pressure-sensing control cavity are filled with adjusting liquid. The watchband can intelligently adjust the elasticity of the watchband to ensure the effective fit of a smart product and the skin, and provides users with sufficient comfort level.
Owner:滨州高新材料产业园有限公司

A multifunctional tumbler

The invention discloses a multifunctional non-tilting cup which comprises a medicine storage cup cover, a cup body and a size-adjustable non- tilting cup holder, the medicine storage cup cover comprises a medicine cover, a medicine box and a medicine box base, the medicine box stores medicine in a separately mode through a partition plate, and the medicine cover is connected to the medicine box ina screwed mode. The medicine box base is fixed to the bottom of the medicine box, and is connected to an upper cup opening of a cup body in a screwed mode. The size-adjustable non- tilting cup holderincludes a telescopic cup body locking device and a negative pressure fixed base, a driving rotating ring is rotated, a telescopic locking plate is retracted or extended outwards, and cups of different sizes can be fixed. The negative pressure fixed base comprises a suction cup, an air bag and a sealing ring, and a sealing ring is rotated to block a lower ventilation hole C, and the suction cup is pressed to a supporting platform and the air bag is squeezed at the same time, and a negative pressure is generated in a cavity of the suction cup. The negative pressure fixed base is fixed on the supporting platform, and the sealing ring is rotated to open the lower ventilation hole C, and the air pressure inside and outside the cavity is uniform, and the adsorption is released. The multifunctional non-tilting cup integrates medicine storage, fixing different size cups and anti-tilting in one body, the functions are various, and the application range is wide.
Owner:NANJING FORESTRY UNIV

Accompaniment device

An accompaniment device comprises a shell and an accompaniment system mounted in the shell; the accompaniment system comprises a storage unit, the storage unit is used for storing band ensemble songs,and the band ensemble songs comprise primary band ensemble practice songs, intermediate band ensemble practice songs and advanced band ensemble practice songs which are suitable for musical instrument practice; the shell comprises a main body part with a semi-circular middle radial section, a strip-plate-shaped control panel part and a base for bearing the main body part and the control panel part, the control panel part and the main body part are spliced to form an accompaniment system accommodating chamber, and a clamping opening with an adjustable opening size is formed in the base so as to clamp the accompaniment device on a musical instrument or an external carrier; the accompaniment system further comprises a controller and a mode selection unit, wherein the controller receives a key instruction of the control panel part so as to control a mode selection unit to select the band ensemble practice songs of the level to which the musical instrument belongs. The accompaniment devicecan be used for musical instrument band ensemble practice, and can be conveniently clamped on a musical instrument or an external carrier.
Owner:占建峰
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