455 results about "Piano" patented technology

The present application relates to the technical field of piano, in particular to a piano pedal system, comprising an external unit and an additional unit; the external unit comprises: an external pedal module comprising at least one external pedal; a data acquisition module for acquiring the pedal data of the external pedal; a height adjustment module comprising a driving mechanism and two supporting mechanisms, the driving mechanism comprising a driving motor, a driving gear fixedly connected with the output shaft of the driving motor and two driving racks, the two driving racks being oppositely engaged on both sides of the driving gear, the supporting mechanisms being one-to-one arranged with the driving racks, the supporting mechanisms being connected between the driving racks and the external pedal module, the driving racks driving the supporting mechanisms to stretch or retract to realize the height adjustment of the external pedal module; the additional unit is used for stepping on the corresponding piano pedal according to the pedal data. The present application can be applied to different types and models of pianos and improve the accuracy and convenience of the height adjustment of the pedal.

The invention relates to the field of piano intelligent display, in particular to a data set display method, system and device and a medium. The music score data comprises one or more of the following: standard time values, standard strength, standard fingering and standard pitches corresponding to the plurality of notes; the playing data of the user are obtained, the playing data of the user comprise data sets at multiple moments, and the data sets comprise one or more of the following data: time value data, force data, fingering data and pitch data; judging whether at least one data group is matched with the corresponding music score data or not; if yes, correlation comparison is carried out on the music score data and the matched data set, and the difference degree is calculated; and displaying the music score, and displaying the associated data group in a region corresponding to the notes. According to the playing data display method provided by the invention, visual optimization can be realized on the basis of ensuring the integrity of playing parameters.

The invention discloses a piano teaching interaction method based on a skeleton point image recognition technology. The method comprises the following steps: S1, collecting video data of hand actions when a user plays a piano; s2, carrying out preprocessing on the video data; s3, extracting hand skeleton point data by using the skeleton point extraction model to obtain a skeleton key point data set; s4, training a hand action recognition network model by using the extracted skeleton key point data set and the loss function; and S5, inputting the real-time output of the skeleton point extraction model into the trained hand action recognition network model, and detecting the correctness of the hand posture. According to the method, the motion information of the hands of the piano player can be captured and analyzed in real time with high precision, and targeted and personalized teaching feedback can be realized through deep mining of skeleton point data, so that the interactivity and teaching efficiency of piano teaching are improved.

1. Name of the designed product: toy music piano (panda). 2. Use of the designed product: for toys. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

1. The name of the design product: toy piano. 2. The use of the design product: for toy piano. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The application discloses a piano music segmentation and note recognition algorithm based on a deep learning network, and comprises the following steps: based on a recurrent neural network, obtaining the starting point of each single tone from a continuous piano audio; according to the starting point of each single tone, segmenting a complete piano audio signal into several single tone audios; constructing an audio data set for pitch recognition; pre-processing signals in the audio data set, drawing a transformed spectrogram, and simultaneously segmenting the spectrogram according to the frequency band of each fundamental frequency to obtain a sub-spectrogram; taking the multiple sub-spectrograms segmented from the spectrogram as input, and recognizing the pitch through multiple convolutional neural networks. Compared with a traditional time domain method, the application no longer depends on the selection of a threshold, improves the generalization ability, compared with a traditional frequency domain method, simplifies the calculation process, and improves the running speed.

1. Name of the designed product: piano (S80). 2. Use of the designed product: the designed product is used for playing music. 3. Design points of the designed product: the shape, pattern and their combination of the product. 4. Picture or photo showing the design points: perspective view 1.

1. The name of the design product: ceiling machine panel. 2. The use of the design product: for ceiling machine panel, air conditioner indoor unit parts. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 front view. 5. Design 1 is designated as the basic design.

An injection molded wippen or repetition flange bushing for a grand piano action where the bushing has four supports posts or elongated appendages projecting outward from the outer surface of the sleeve member of the injection molded wippen or repetition flange bushing. The four supports posts help reduce or eliminate shrinkage of the sleeve member during the cooling stage in the manufacturing of the injection molded wippen or repetition flange bushing. This occurs because shrinkage occurs in the four support posts and not in the sleeve member portion of the injection molded wippen or repetition flange bushing. The result is a perfectly straight bushing with an extremely precise and accurate bushing surface that produces perfect wippen or repetition rotation.

The invention discloses a visual piano teaching aid and a control system thereof, and belongs to the technical field of pianos. The visual piano teaching aid comprises a piano body, the piano body comprises a transparent soundboard cover plate, a transparent soundboard, a transparent keyboard cover plate and a transparent music stand plate; the transparent soundboard cover plate, the transparent soundboard, the transparent keyboard cover plate and the transparent music stand plate are all made of optical-grade materials with the light transmittance larger than or equal to 60% and used for replacing non-transparent parts corresponding to the piano, and therefore the internal mechanical structure of the piano is visualized. According to the system, the complete visualization of the internal mechanical structure of the piano is realized through the high-transparency component with the light transmittance being greater than or equal to 60%, and unprecedented visual experience is brought to piano teaching. A learner can clearly observe a hammer string striking process corresponding to each key, a precise linkage mechanism of a string striking machine and a vibration transmission path of a soundboard, and the visual teaching mode can help the learner to deeply understand a sounding principle and key touch skills of a piano.

1. Name of the designed product: toy piano (Casio). 2. Use of the designed product: children's toy, for playing. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: design 1 perspective view. 5. Design 1 is designated as the basic design. 6. Other circumstances needing explanation: A indicates transparency.

1. Name of the product in this design: Piano music stand. 2. Purpose of this design: To hold piano sheet music. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

1. Name of the product in this design: Piano (267). 2. Purpose of this design: This design is for piano practice and performance. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the technical field of musical instruments, in particular to a piano function enhancing device. The utility model provides a piano function enhancing device. The piano function enhancing device comprises a power amplifier and a vibration excitation assembly, the power amplifier is electrically connected with the vibration excitation assembly; the vibration excitation assembly comprises a vibration exciter, a conduction base and a fixing piece, the vibration exciter is fixedly connected with the conduction base, the fixing piece is used for detachably and fixedly connecting the conduction base with a wall bar of the piano, the conduction base is further provided with an abutting face used for abutting against a soundboard of the piano, and the conduction base is fixedly connected with the wall bar of the piano through the abutting face. The abutting surface is used for transmitting vibration of the vibration exciter to a soundboard of the piano. According to the technical scheme, the electronic audio signals are converted into mechanical vibration energy through cooperative work of the power amplifier and the vibration excitation assembly, the function of the piano is enhanced, the piano has the function of a sound box, and the piano can interact with electronic equipment and play the electronic audio signals in the electronic equipment.

1. Name of the product in this design: Sling Piano. 2. Purpose of this design: A violin for playing music. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view.

1. Name of the product in this design: Teaching aid (piano). 2. Purpose of this design: For use as a science education tool. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

The invention relates to the technical field of electronic musical instruments, and discloses an intelligent working mode switching method for a four-fold electric piano based on multi-modal state perception, which comprises the following steps: firstly, acquiring data through angle, pressure, visual and audio sensors, and carrying out fusion and feature extraction to generate multi-modal sensor data; and carrying out standardization processing, feature extraction and time sequence analysis on the data to generate final fusion feature representation. The feature representation is sequentially subjected to full connection layer processing and output layer transformation, and classification logits and multi-level abstract features are obtained. And the classification logits are converted into a five-dimensional probability distribution vector, and multi-level abstract features are introduced to carry out consistency verification and decision optimization, so that a final classification result is output, and confidence and robust probability distribution are predicted. And finally, the system performs reliability evaluation and anomaly detection in combination with robust probability distribution, a classification result, prediction confidence and multi-modal sensor data, and generates a classification reliability score, an anomaly sign and a processing strategy.

The application discloses a bidet, which comprises a shell, a spray head, a lever switch valve, a piano key type water spraying switch and a general switch valve arranged on the shell, a water inlet is arranged on the shell, a water inlet channel is formed in the shell to guide the water inlet to a water inlet end of the lever switch valve, and a water outlet channel is formed in the shell to guide a water outlet end of the lever switch valve to the spray head; the lever switch valve comprises a valve main body and a lever, the valve main body is fixed on the shell, and the lever extends horizontally out of the valve main body; the piano key type water spraying switch is fixed with the lever to lower the lever when being pressed, so as to guide the lever switch valve to connect the water inlet channel and the water outlet channel; or the piano key type water spraying switch is lifted to reset the lever, so as to block the water inlet channel and the water outlet channel of the lever switch valve; the general switch valve is arranged on the water inlet channel or the water outlet channel to open or block the water inlet channel or the water outlet channel. The application makes the water spraying operation of the bidet more simple and labor-saving.

The utility model relates to the technical field of music instruments. The angle-adjustable piano music stand comprises supporting plates, the number of the supporting plates is two, the lower ends of the supporting plates are connected with supporting bases in a hinged mode, first sliding grooves are formed in the upper ends of the supporting plates, movable sliding blocks are connected into the first sliding grooves in a clamped mode, and one sides of the movable sliding blocks are connected with book ends in a hinged mode. Second sliding grooves are formed in the upper ends and the lower ends of the surfaces of the sides of the ends, close to each other, of the two supporting plates, sliding rods are connected into the second sliding grooves in a clamped mode, and the number of the sliding rods is two. According to the utility model, by moving the two groups of telescopic rods on the outer surfaces of the two ends of the connecting rod, the two groups of stretching structures can be driven to synchronously move outwards or inwards, so that the supporting plate and the supporting base can synchronously move outwards or inwards, and the device can be conveniently adjusted according to the actual length of a music score; the music score can be conveniently placed and supported by the equipment, and the applicability of the equipment is improved to a certain extent.

1. The name of the design product: piano. 2. The use of the design product: for playing music. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best shows the design points: design 1 perspective view 1. 5. Design 1-3 is not common, omit design 1-3; embodied in the submission view, omit design 1-3 left view. 6. Design 1 is designated as the basic design.

The utility model discloses a height calibration device for an aluminum total gear of a vertical piano action. The height calibration device comprises a calibration platform, a first calibration block and a second calibration block, the calibration platform is provided with a calibration plane, the calibration plane is horizontally arranged, the bass support, the alto support and the high-pitch support are sequentially and vertically arranged on the calibration plane, the first calibration block and the second calibration block are arranged on the calibration plane, the first calibration block is located between the bass support and the alto support, and the second calibration block is located between the alto support and the high-pitch support. The aluminum total gear is placed on the upper side surfaces of the first calibration block and the second calibration block, and the thickness of the first calibration block is the same as that of the second calibration block and is the standard height of installation of the aluminum total gear. According to the utility model, the deviation of the string striking machine after being assembled on the piano due to the inconsistent height of the bracket relative to the aluminum main gear can be avoided, the assembly quality and efficiency are improved, the product quality is more stable, the adjustment difficulty is small, and the operation is convenient.

The utility model discloses an adjustable piano pedal device, which relates to the technical field of piano pedals, and comprises a piano body, a lifting box body is arranged at the bottom of the piano body, an adjusting assembly is arranged outside the lifting box body, and the adjusting assembly comprises a rotating rod, a rack, a sliding groove and a supporting rod. The rotating rod is arranged in the piano body and is rotationally connected with the inner wall of the piano body, the rack is fixedly connected with the outer surface of the lifting box body, the sliding groove is formed in the outer surface of the piano body, and the supporting rod is arranged in the piano body and is fixedly connected with the inner wall of the piano body. The piano body, the lifting box body and the adjusting assembly are matched, the rotary knob is rotated to drive the gear to rotate, the effect of adjusting the height of the pedal body can be achieved through meshing between the gear and the rack, and the piano pedal is convenient and fast to use by children of different heights and enables the children to smoothly complete piano learning.

The present application relates to a kind of foot-worn keystroke modular aluminum plate piano and its operating method, modular aluminum plate piano, comprising: detachable performance module, including: multiple aluminum keys of fan-shaped arrangement, key frame, aluminum key bottom is embedded in the key frame groove of key frame, realize quick disassembly;Foot control module, including: fixed on the hammer of performer foot and ankle rotation platform;The hammer includes: elastic hammer handle, hammer head, fixed strap, the ankle rotation platform includes: rotating base, bearing and rotating sheet, ankle movement is converted into the transverse displacement of hammer and up and down keystroke action by rotating base, bearing and rotating sheet;Integrated storage module;The key frame, ankle rotation platform are detachably connected by plug-in hole and plug-in head;Exposed part of piano body forms handle.Compared with prior art, the present application has the advantages of realizing ankle accurate performance, freeing hands, supporting complex melody performance;Portability;Multifunctional integration, fatigue-resistant design and the like.

This set provides an efficient scale sight-reading learning tool for piano beginners, allowing them to easily learn how to read musical scales on the staff and the correct key placement, even without a piano. [Solution] The scale reading learning set 1, which has a main body with four octaves of musical staff lines, is equipped with rotatably supported sheet winding knobs 4 and 5, and a transparent sheet for writing musical notes 6 that is stretched over the sheet winding knobs 4 and 5 via a transparent sheet for writing musical notes retraction hole 7. By rotating the sheet winding knobs 4 and 5, the musical note marks written on the transparent sheet for writing musical notes 6 move along the musical staff lines. This makes the scale reading learning set 1 compact, limits the range of the musical staff lines to four octaves, and improves the efficiency of learning to read musical notes by allowing the transparent sheet for writing musical notes 6 to move smoothly from side to side and allowing the written musical notes to be read immediately.

The utility model relates to the field of piano accessory instruments, and provides a page turning device for piano practice, which comprises a pedal, an adjusting frame and a pipe rope page turning mechanism arranged between the pedal and the adjusting frame, a mounting component is arranged in the adjusting frame in a sliding manner, the mounting component is used for mounting an electronic music score, and the pipe rope page turning mechanism is connected to the mounting component. The electronic music score comprises a software music score in electronic products such as a mobile phone and an Ipad, and pages can be turned by clicking and pressing a screen. The adjusting frame is installed on the piano, and the pipe rope page turning mechanism is matched with the pedal, so that a user does not need to manually turn pages when playing the piano, and can click and press a screen to turn pages of a music score only by pedaling. Page turning of the electronic music score is carried out through a full-mechanical mechanism, a power source and a sensor are not needed, the page turning device is in non-fixed connection with the piano, and the applicability to the type size of the piano and practice scenes is high.

The invention discloses a piano key type air conditioner control panel and a control method thereof.The piano key type air conditioner control panel comprises a panel shell, an air conditioner switch large key and a temperature adjusting small key, the keys are arranged in a piano key mode, the temperature adjusting small key is embedded in the lower half area of the air conditioner switch large key, and multi-gear accurate control over the air conditioner temperature is achieved in a direct selection mode. The system is simple in structure and visual in operation, supports manual and networking dual-mode control, is suitable for various air conditioner control scenes, and has high artistry and market competitiveness.

Unstable temperature and humidity, especially excessive dryness, can cause deterioration of the wood of a piano's soundboard, resulting in discordant sounds and noise, and the piano no longer performing its function. A compression coil spring is sandwiched between the support pillar of a grand piano and a sound bar fixed to the soundboard. Alternatively, an additional member of the same shape as the bridge is fitted onto the top of the support pillar as an auxiliary support, and a compression coil spring is sandwiched between the additional member and the sound bar.

The invention discloses a low-deformation guitar type hinge structure and a preparation method thereof and a flexible solar wing, the low-deformation guitar type hinge structure comprises a shaft core, a polyimide film, a connecting layer and a glass fiber grid layer, the polyimide film is bent along the middle to form the guitar type hinge structure, the guitar type hinge structure comprises a hollow cylindrical hinge roll and two blades, and the hollow cylindrical hinge roll is connected with the glass fiber grid layer. The shaft core is bonded in the hollow cylindrical hinge roll, the glass fiber grid layer is bonded between the two hinge pieces through the connecting layer, and the inner end of the glass fiber grid layer is bonded with the shaft core through the connecting layer. The low-deformation piano type hinge structure has high machining precision, and the large-deformation failure risk caused by hinge hole deformation due to on-orbit high and low temperature alternation is reduced.

Exemplary systems and wearable haptic device systems are disclosed for training a user to improve perception or discrimination. An exemplary system can be used to train a user to play a musical instrument, such as a piano, in passive training sessions via a wearable haptic device. The exemplary wearable haptic device can be integrated with sensors and in operative communication with a passive haptic learning system (e.g., cloud-based infrastructure) that is configured to generate, update, and / or modify tactile training data for generating tactile outputs at the wearable haptic device.

The invention discloses a piano music score continuous playing device which comprises a music score page turning mechanism, a music score protection sleeve and a base box. A music score bag is arranged in the middle of the music score protection sleeve, and square holes are formed in the two sides of the music score protection sleeve and meshed with square flat teeth arranged on a flat tooth stirring wheel of the music score page turning mechanism. A music score is placed in the music score bag, the motor drives the belt pulley to drive the stirring wheel to rotate, the music score protection sleeve is driven to continuously move on the supporting plate, and the music score is accurately and continuously played without slipping. The base box is provided with the music score storage box and the music score storage box with the guide wheels / corner plates, and guide clamping groove structures arranged on the two sides of the supporting plate are combined, so that the problem that the music score may wrinkle during playing and storage is solved, the music score box is suitable for different music score materials, and playing fluency is guaranteed.