WO2016032176A2 - 행 분할 광학 모듈과 이를 이용한 전자 건반 - Google Patents
행 분할 광학 모듈과 이를 이용한 전자 건반 Download PDFInfo
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- WO2016032176A2 WO2016032176A2 PCT/KR2015/008789 KR2015008789W WO2016032176A2 WO 2016032176 A2 WO2016032176 A2 WO 2016032176A2 KR 2015008789 W KR2015008789 W KR 2015008789W WO 2016032176 A2 WO2016032176 A2 WO 2016032176A2
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- Prior art keywords
- camera
- optical unit
- keyboard
- optical
- prism
- Prior art date
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- 230000003287 optical effect Effects 0.000 title claims description 62
- 238000000034 method Methods 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003086 colorant Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010437 gem Substances 0.000 description 2
- 229910001751 gemstone Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000001454 recorded image Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 244000145845 chattering Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C3/00—Details or accessories
- G10C3/12—Keyboards; Keys
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
- G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
- G10H1/053—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only
- G10H1/055—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by switches with variable impedance elements
- G10H1/0553—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by switches with variable impedance elements using optical or light-responsive means
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
- G10H1/344—Structural association with individual keys
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/155—User input interfaces for electrophonic musical instruments
- G10H2220/265—Key design details; Special characteristics of individual keys of a keyboard; Key-like musical input devices, e.g. finger sensors, pedals, potentiometers, selectors
- G10H2220/305—Key design details; Special characteristics of individual keys of a keyboard; Key-like musical input devices, e.g. finger sensors, pedals, potentiometers, selectors using a light beam to detect key, pedal or note actuation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/155—User input interfaces for electrophonic musical instruments
- G10H2220/441—Image sensing, i.e. capturing images or optical patterns for musical purposes or musical control purposes
- G10H2220/455—Camera input, e.g. analyzing pictures from a video camera and using the analysis results as control data
Definitions
- the present invention relates to a row division optical module capable of observing a long object in high resolution and an electronic keyboard using the same.
- the present invention relates to a row splitting optical module capable of capturing a long left and right object such as a keyboard at a high resolution at once and an electronic keyboard using the same.
- An object of the present invention is to provide a row splitting optical module and an electronic keyboard using the same.
- the present invention provides a row splitting optical module, such as a prism, to make the left side (or right side) of the long object visible above the field of view and the remaining right side (or left side) below the field of view.
- a row splitting optical module such as a prism
- the keyboard since there is no printed circuit board (PCB) and sensor circuit under the keyboard, the keyboard has the advantage of being lighter, and it is also possible to provide a visual beauty by designing the keyboard with a transparent material to feel like a jewel.
- PCB printed circuit board
- Figure 2 is an embodiment configuration of the present invention
- FIG. 3 is a perspective view of a row splitting prism
- Figure 4 is a side split prism side view
- Figure 9 is a side view of the prism of Figure 8.
- FIG. 10 is a modification of the configuration of FIG.
- Fig. 11 is an image of photographing a mark of a keyboard without using a row splitting prism
- Figure 12 is an image of a keyboard mark with a row splitting prism installed in front of the camera.
- Figure 13 is a row split prism modification
- FIG. 14 is an image in which the row division prism of FIG. 13 is installed in front of the camera and the mark of the keyboard is photographed.
- Figure 15 is a perspective view of the row splitting optical module using the periscope
- Figure 16 shows the camera installed below the keyboard
- Figure 17 shows the camera installed obliquely below the keyboard
- FIG. 18 shows the camera installed directly under the keyboard
- Fig. 19 is a plan view of the configuration of Fig. 17 or 18;
- Figure 20 shows the camera installed above the keyboard
- Figure 21 is a perspective view of Figure 20
- Fig. 22 shows how the intervals between the marks on the keyboard are adjusted differently.
- An electronic piano is a device that presses a key, presses a switch connected to the key, and detects this by the scanning circuit, and outputs an instrument sound corresponding to the key.
- Such a device is difficult to manufacture due to the large number of parts because switches are installed in each key, and the wiring is complicated.
- complicated circuits and wiring are not visually beautiful, so they are covered using an opaque case. This opaque case is frustrating to look at.
- the present invention can eliminate the opaque case by replacing the complicated circuit with a compact and reliable camera to improve the keyboard part simply and beautifully. It is also possible to process the keyboard transparently like a jewel, providing a beautiful feeling without visual clutter.
- by removing the printed circuit board of the switch circuit it is easy to manufacture and it is possible to reduce the generation of industrial waste.
- the piano using the camera of the present invention attaches a mark such as a retroreflective film SR to a large portion of the movement of each keyboard KE, as shown in FIG. 1, and a light source LS such as an infrared LED and a camera
- a mark such as a retroreflective film SR
- a light source LS such as an infrared LED and a camera
- the difference image means that the pixel value is a difference value between two pixels at the same overlapped position of two overlapping images when the two images overlap each other.
- Fig. 1 the keyboard is placed on the support bar AX, and when one end of the key is pressed (DN), the opposite end rotates UP around the support bar AX. As the key is rotated, the position of the retroreflective film taken by the camera changes, and the position can be analyzed to determine the degree to which the key is rotated.
- FIG. 3 is a detailed view of a row splitting prism installed in front of the camera
- FIG. 4 is a side view thereof
- FIG. 5 is a plan view thereof
- 6 is an exploded view of a row splitting prism into four simple rectangular prisms.
- FIG. 12 is a view of retroreflective films SRs taken by a camera through a prism as shown in FIG. 3.
- keys 0 through 11 of 24 keys were photographed in the lower horizontal area portion of the image, and keys 12 through 23 were photographed in the upper horizontal area of the image.
- all the keyboards were photographed small on one horizontal line. In this case, each key is taken small, which makes it difficult to detect the movement of the keyboard in the image processing means, and there is a problem that there are many wasted pixels that are not used for keyboard shooting.
- the third and fourth prisms P3 and P4 of FIG. 6 respectively beam down and upward so that a single row of keys, which are left and right, are separated into two rows in the camera's field of view. Refraction That is, the third prism refracts light reflected slightly upward from the mark SR horizontally downward, and the fourth prism refracts light reflected slightly downward from the mark horizontally upward.
- the first prism and the second prism P1 and P2 are refracted by the third and fourth prisms to refract the horizontal beam divided into two rows to the right and the left, respectively. do.
- the first and second prisms are formed in the same form, and the third and fourth prisms are formed in the same form.
- the light source LS such as an infrared LED, may be respectively installed above the first prism and the bottom of the second prism, but in this case, it is inconvenient to install twice and manufacture two light source modules. Therefore, it is preferable that the light source module LS is made of one module and installed between the first and second prisms as shown in FIG. 9. In this case, the light source module does not cover the camera's field of view (that is, to move the upper field of view of the camera upward and the lower field of view further downward) as shown in FIG. 8 between the first and second prisms and the camera lens. ), It is preferable to further provide a sixth (P6) prism (fifth, sixth optical unit).
- the first prism and the fifth prism may be integrally formed by forming the fifth prism at an angle as shown in FIG. 8 so that the points on the opposing surfaces of the first prism and the fifth prism are in contact with each other.
- the second prism may be formed at an angle as shown in FIG. 8 so that the points on the opposing surfaces of the second prism and the sixth prism may contact each other, thereby forming the second prism and the sixth prism as one body.
- 9 is a side view of the prisms.
- Such a prism may be formed of a prism sheet or hologram in the form of a Fresnel lens as shown in FIG. 7 so as to occupy less volume. That is, such a prism can be implemented by any optical module having a refractive function. As shown in FIG. 6, the right-angled portions R3 and R4 of the third and fourth prism are attached to be in contact with each other to form an isosceles triangular prism, and the right-angled portions R1 and R2 of the first and second prism are far apart from side to side. Can be attached to form the row splitting prism of this embodiment. The third, fourth, fifth and sixth prisms may be omitted.
- first and second prisms of FIG. 6 may be constituted by general triangles (for example, isosceles triangles) prisms instead of right-angle prisms as shown in FIG. 10.
- the third prism at an angle as shown in FIG. 10 so that all the points on the opposing surfaces of the first prism and the third prism are in contact with each other.
- the fourth prism at an angle as shown in FIG. 10 so that all the points on the surface facing the second prism are in contact with each other.
- two prism for example, acrylic prisms
- FIG. 1 is a view of photographing the left and right halves of the keyboard with two cameras CM1 and CM2, respectively. If you have a small number of keys, you can use only one camera. If you have a large number of keys, you can use two or more cameras. In front of each camera, a prism as shown in Fig. 3 is used to refract the beam incident from the left and right in front of the camera, so that the keys on the left side are photographed in the horizontal (lower) horizontal region of the image, and the right part of the remaining keys is the upper (or lower) portion of the image. You can shoot in the horizon area. That is, the original one long (ROW) key is photographed by dividing the keyboard into two short lines on the image, but the two divided lines may be arranged vertically in the camera field of view.
- ROW original one long
- Fig. 13 is a configuration in which an empty space is provided between two prisms in front of the camera, and the keyboard is photographed between the spaces.
- the keyboard image photographed in this configuration is photographed in three rows as shown in FIG.
- Fig. 15 is a configuration in which the keys are photographed in three rows using a periscope mirror instead of a prism.
- An optical module (prism, hologram, periscope mirror module, etc.) capable of capturing such a long object at one time at high resolution is referred to as a row division optical module in the present invention.
- the retroreflective film is a product sold by 3M, which reflects the incident light beam toward the light source.
- 3M 3M
- the retroreflective film is convenient to attach the retroreflective film of different colors to two adjacent keys to track the movement by distinguishing each key in the image processing means. For example, a red retroreflective film is attached to a black key, a blue retroreflective film is attached to a white key, and it is photographed with a color camera.
- the image processing means analyzes the color of the photographed image and traces the bright part of the keyboard. The motion can be detected more accurately.
- a retroreflective film of the above two colors (red, blue) and another color (for example green) can be attached to a specific key (for example, the start key of the middle octave, ie the middle degree). It may be.
- This particular color can be detected by the image processing means to easily recognize the number of keys surrounding the keyboard.
- the shape of the retroreflective film may be differently formed in order to display a key of a specific reference position.
- the retroreflective film of a key may be a polygon such as a rectangle, and the retroreflective film of a key of a reference position may be circular.
- the distance of a retroreflective film may be adjusted differently in order to display the keyboard of a specific reference position.
- the distance between neighboring retroreflective films can be made smaller or larger.
- the depth (angle) of the key press and the movement distance of the retroreflective film or mark in the recorded image are roughly proportional, you can track the position of the retroreflective film on each key in the recorded image to determine the depth (degree) at which each key was pressed. And can output the sound corresponding to that degree. For example, you can output a slightly higher frequency than the original sound, proportional to the depth at which the key is pressed. In this case, oscillating the depth of the press can create a playing effect that vibrates the finger pressing the strings of a guitar or violin. You can also increase the volume (volume) of the organ sound in proportion to the depth you press. You can also detect the speed at which the keys are pressed and increase the intensity of the piano sound in proportion to the speed.
- the camera vibrates from side to side with a camera and may be detected by an image processing unit to implement a function of a modulation wheel, a pitch band, or an after touch.
- the retroreflective film attached to the keyboard appears to vibrate from side to side in the captured image.
- the keyboard is preferably configured to move from side to side as well as up and down.
- the function of the modulation wheel, pitch band, or after touch of the existing master keyboard can be implemented by detecting the degree or direction of pressing of each key.
- such a depth detection circuit increases in proportion to the number of keys.
- the number of cameras does not need to increase in proportion to the number of keys.
- the contactless detection method using a camera is used instead of a switch including a physical electric terminal, contact failure problems, friction problems, and chattering problems occurring at the electrical terminals are blocked. This can be used to achieve the effect of continuously changing the force of the strings, for example, when playing stringed instruments such as lyre and gayageum.
- the camera may be installed below or above the keyboard as shown in FIG. 16 or 20 by installing a right angle prism (RP) or a mirror as long as the key between the camera and the keyboard.
- RP right angle prism
- 21 is a perspective view of FIG.
- FIG. 19 is a plan view of FIG. 17 or FIG.
- These retroreflective films located at the left and right ends of the camera's field of view are placed on a curved surface (for example, an ellipse with a center on the camera side) so that the surface of the retroreflective film faces the camera as much as possible to mitigate the distortion. It is desirable to. Also, the larger the retroreflective film (FSR) at the left and right ends away from the camera, the larger the retroreflective film (NSR) near the camera, and the smaller the size. It is desirable to adjust so that it is possible. In addition, the larger the distance between the retroreflective film (FSR) at the left and right ends of the camera, the greater the distance from the neighboring retroreflective film. It is desirable to adjust so that the spacing of all the retroreflective film can be taken to the same size as possible.
- FSR retroreflective film
- NSR retroreflective film
- the sleep mode may repeat, for example, turning on and shooting the light source and the camera for 1 second and turning off the light source and the camera for 2 seconds and not photographing. If movement of the keyboard is detected during this sleep mode, it can return to the original normal mode (the mode in which the light source and the camera are always on).
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Abstract
Description
Claims (20)
- 광학 모듈에 있어서우측에서 입사되는 빛을 정면으로 굴절,반사 또는 회절시키는 제1 광학부;좌측에서 입사되는 빛을 정면으로 굴절,반사 또는 회절시키는 제2 광학부를 포함하되 상기 두 광학 부는 상하로 배열된 것을 특징으로 하는 행 분할 광학 모듈
- 1항에 있어서제1광학부와 제2광학부 중 위쪽에 배열된 광학부 앞에는 입사하는 빛을 아래쪽으로 굴절,반사 또는 회절시키는 제3광학부를 포함하고;제1광학부와 제2광학부 중 아래쪽에 배열된 광학부 앞에는 입사하는 빛을 위쪽으로 굴절,반사 또는 회절시키는 제4광학부를 포함하는 것을 특징으로 하는 행 분할 광학 모듈
- 1항에 있어서제1광학부와 제2광학부 중 위쪽에 배열된 광학부 뒤에는 입사하는 빛을 위쪽으로 굴절,반사 또는 회절시키는 제5광학부를 포함하고;제1광학부와 제2광학부 중 아래쪽에 배열된 광학부 뒤에는 입사하는 빛을 아래쪽으로 굴절,반사 또는 회절시키는 제6광학부를 포함하는 것을 특징으로 하는 행 분할 광학 모듈
- 1항내지 3항중 어느 한 항에 있어서제1광학부와 제2광학부 사이에 빈 공간이 형성된 것을 특징으로 하는 행 분할 광학 모듈
- 1항내지 3항중 어느 한 항에 있어서상기 광학부는 프리즘,프리즘 시트,홀로그램, 또는 거울을 포함하는 것을 특징으로 하는 행 분할 광학 모듈
- 전자 건반 장치에 있어서좌우로 길게 배열된 다수의 건반;상기 건반을 다수의 행으로 분할하여 촬영하는 행 분할 광학 모듈을 포함하는 카메라;상기 카메라로 촬영된 영상에서 건반의 움직임을 검출하여 그 움직임에 대응하는 악기 소리 또는 미디(midi) 신호를 출력하는 영상처리 수단을 포함하는 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 6항에 있어서상기 행 분할 광학 모듈은 우측에서 입사되는 빛을 카메라 쪽으로 굴절,반사 또는 회절시키는 제1광학부와좌측에서 입사되는 빛을 카메라 쪽으로 굴절,반사 또는 회절시키는 제2광학부를 포함하되 상기 두 광학부는 상하로 배열된 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 7항에 있어서상기 상하로 배열된 제1광학부와 제2 광학부 중에서 위쪽에 위치한 광학부 앞에는 입사하는 빛을 아래쪽으로 진행하도록 굴절,반사 또는 회절시키는 제3광학 부를 포함하고제1광학부와 제2 광학부 중에서 아래쪽에 위치한 광학부 앞에는 입사하는 빛을 위쪽으로 진행하도록 굴절,반사 또는 회절시키는 제4광학부를 포함하는 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 7항에 있어서제1광학부와 제2광학부 중 위쪽에 배열된 광학부 뒤에는 입사하는 빛을 위쪽으로 굴절,반사 또는 회절시키는 제5광학부를 포함하고;제1광학부와 제2광학부 중 아래쪽에 배열된 광학부 뒤에는 입사하는 빛을 아래쪽으로 굴절,반사 또는 회절시키는 제6광학부를 포함하는 것을 특징으로 하는 카메라를 이용한 전자 건반 장치
- 7항에 있어서 상기 제1광학부와 제2 광학부 사이에 빈 공간이 있어서 그 공간을 통해 빛이 직진하여 카메라에 촬영되는 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 7항내지 9항중 어느 한 항에 있어서상기 광학부는 프리즘,프리즘 시트,홀로그램, 또는 거울을 포함하는 것을 특징으로 카메라를 이용한 전자 건반 장치
- 6항에 있어서상기 건반에는 마크가 포함되고상기 영상처리 수단은 촬영된 영상에서 상기 마크를 검출하여 건반의 움직임을 알아내는 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 12항에 있어서상기 마크는 재귀반사 수단이고상기 카메라는 상기 재귀반사 수단에 빛을 조사하는 광원을 포함하는 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 6항에 있어서영상처리 수단은 일정 시간 이상 건반이 움직이지 않는 경우 광원 또는 카메라를 절전 모드로 동작하게 조정하는 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 6항에 있어서카메라로 촬영된 영상에서 특정 기준 건반은 주변 건반과 간격이 보통의 건반 사이의 간격과 다른 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 6항에 있어서카메라로 촬영된 영상에서 특정 기준 건반은 보통의 건반과 형태,크기 또는 색이 다른 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 6항에 있어서건반은 끝에 막대가 건반 아래쪽으로 L자 형태로 부착되어있고카메라는 건반 밑에 위치하여 상기 막대를 촬영하고영상처리 수단은 촬영된 영상에서 상기 막대의 운동을 검출하여 악기 소리 또는 미디 신호를 출력하는 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 6항에 있어서건반은 끝에 직각 프리즘 또는 거울을 포함하고카메라는 건반 밑 또는 위쪽에 위치하여 상기 프리즘 또는 거울을 통해 건반의 움직임을 촬영하는 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 6항에 있어서 상기 영상처리수단은 건반이 눌려진 속도 또는 건반이 눌려진 깊이에 비례해서 악기 소리 또는 미디 신호를 출력하는 것을 특징으로하는 카메라를 이용한 전자 건반 장치
- 17항에 있어서상기 막대는 카메라 쪽에 중심이 존재하는 타원과 같은 오목한 곡선 위에 배열된 것을 특징으로하는 카메라를 이용한 전자 건반 장치
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JP2017510626A JP6729939B2 (ja) | 2014-08-23 | 2015-08-22 | 行分割光学モジュール、及びそれを利用した電子鍵盤 |
CN201580056574.3A CN107004401B (zh) | 2014-08-23 | 2015-08-22 | 分行光学模块和使用分行光学模块的电子键盘 |
US15/505,723 US10199025B2 (en) | 2014-08-23 | 2015-08-22 | Image capturing device and electronic keyboard using the image capturing device |
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- 2015-08-22 CN CN201580056574.3A patent/CN107004401B/zh not_active Expired - Fee Related
- 2015-08-22 US US15/505,723 patent/US10199025B2/en active Active
- 2015-08-22 WO PCT/KR2015/008789 patent/WO2016032176A2/ko active Application Filing
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CN107004401A (zh) | 2017-08-01 |
US20170278499A1 (en) | 2017-09-28 |
KR20160023619A (ko) | 2016-03-03 |
JP6729939B2 (ja) | 2020-07-29 |
WO2016032176A3 (ko) | 2017-05-18 |
US10199025B2 (en) | 2019-02-05 |
KR101920176B1 (ko) | 2018-11-19 |
KR20180008839A (ko) | 2018-01-24 |
JP2017529562A (ja) | 2017-10-05 |
CN107004401B (zh) | 2020-12-29 |
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