WO2012113335A1 - Ultrasonic wave receiving window and ultrasonic wave input device - Google Patents
Ultrasonic wave receiving window and ultrasonic wave input device Download PDFInfo
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- WO2012113335A1 WO2012113335A1 PCT/CN2012/071480 CN2012071480W WO2012113335A1 WO 2012113335 A1 WO2012113335 A1 WO 2012113335A1 CN 2012071480 W CN2012071480 W CN 2012071480W WO 2012113335 A1 WO2012113335 A1 WO 2012113335A1
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- ultrasonic
- receiving
- opening
- wavelength
- ultrasonic wave
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/043—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
Definitions
- the present invention relates to an ultrasonic receiving window and an ultrasonic input device, and more particularly to an ultrasonic receiving window and an ultrasonic input device for filtering ultrasonic hum.
- the existing ultrasonic receiver is usually placed directly outside, which is easily damaged by the collision or the like, and the ultrasonic receiver is easily damaged by the electric shock breakdown.
- the technical problem to be solved by the present invention is to construct an ultrasonic receiving window and an ultrasonic input device, which overcomes the technical problem that the interference of echo and other noises of the ultrasonic wave during the transmission process affects the ultrasonic receiving effect.
- the method of the present invention is: an ultrasonic receiving window, the receiving window comprising a receiving port for receiving the ultrasonic wave and a shielding portion for shielding the ultrasonic wave, the receiving port having an area of 0. 24a 2 to 0. 6 a 2 ,
- the a is an ultrasonic wavelength
- the unit is an ultrasonic wavelength unit
- the receiving port is facing the ultrasonic receiver.
- the receiving port includes a long direction of the opening and a width direction of the opening, a length direction of the opening is longer than a width direction of the opening, and a length of the opening of the receiving port is a longest length of 0. 8a ⁇ 1. 2£1, the a is an ultrasonic wavelength, and the width direction of the opening of the receiving port is at most 0. 3a to 0. 5£1, the a is an ultrasonic wavelength.
- the length of the opening of the receiving opening is up to one ultrasonic wavelength unit, and the width of the opening of the receiving opening is up to 0.35 ultrasonic wavelength units.
- the singularity of the ellipse is 0. 3A, the long axis of the ellipse is 0. 8a to 1. 2a, the a is an ultrasonic wavelength, and the short axis of the ellipse is 0.30. 1 to 0. 5 £ 1, the a is an ultrasonic wavelength.
- the a is an ultrasonic wavelength
- the width of the rectangle is 0.3 to 1 to 0. 5 £ 1
- the a is an ultrasonic wavelength.
- the technical solution of the present invention is: constructing an ultrasonic input device, comprising: an ultrasonic receiving end host for acquiring input information, an operation end for operating input, an operation plane for inputting the operation end, and an ultrasonic receiving window, wherein the operation end includes occurrence
- An ultrasonic ultrasonic generator the ultrasonic receiving end main body includes an ultrasonic receiver that receives ultrasonic waves generated by the ultrasonic generator, and an ultrasonic receiving window is disposed at a front end of the ultrasonic receiver, the ultrasonic receiving window including a receiving port for receiving ultrasonic waves The receiving port is facing the ultrasonic receiver.
- the ultrasonic receiver and the ultrasonic receiving window are disposed in a cavity, and the ultrasonic receiver and the ultrasonic receiving window are retracted in the cavity.
- the receiving port includes a long direction of the opening and a width direction of the opening, a length direction of the opening is longer than a width direction of the opening, and a length of the opening of the receiving port is a longest length of 0. 8a ⁇ 1. 2£1, the a is an ultrasonic wavelength, and the width direction of the opening of the receiving port is at most 0. 3a to 0. 5£1, the a is an ultrasonic wavelength.
- the long direction of the opening of the receiving port is perpendicular to the operating plane.
- the abundance of the receiving port of the receiving port is 0. 24a 2 to 0. 6 a 2
- the a is an ultrasonic wavelength
- the receiving port is opposite to the ultrasonic receiver.
- the ultrasonic receiving window of the present invention also has the function of protecting the ultrasonic receiver from damage. According to the present invention, by providing an ultrasonic receiving window at the front end of the ultrasonic receiver, it is possible to filter partial noise and echo generated by the ultrasonic wave, and submit the ultrasonic receiving effect.
- FIG. 1 is a schematic structural view of an ultrasonic receiving window of the present invention.
- FIG. 2 is a schematic view showing the elliptical structure of the ultrasonic receiving window of the present invention.
- FIG. 3 is a schematic structural view of an ultrasonic input device of the present invention.
- FIG. 1 is a comparison diagram of the receiving effects of the ultrasonic receiving windows of various shapes of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The technical solutions of the present invention will be further described below in conjunction with specific embodiments.
- a specific embodiment of the present invention is: constructing an ultrasonic receiving window, the ultrasonic receiving window 1 includes a receiving port 11 for receiving ultrasonic waves and a shielding portion 12 for shielding ultrasonic waves, and the area of the receiving port 11 is 0. 24a 2 to 0.
- the a is an ultrasonic wavelength
- the unit is an ultrasonic wavelength unit
- the receiving port 11 is disposed at the center of the ultrasonic receiving window 1
- the receiving port 11 is opposite
- the ultrasonic receiver has one receiving port 11 .
- the present invention also includes a bracket 2 that supports the ultrasonic receiving window 1.
- the ultrasonic receiving window 1 is disposed at the front end of the ultrasonic receiver, and the receiving port 11 faces the ultrasonic receiver, and the receiving port 11 has an area of 0. 24a 2 to 0. 6 a 2 , the a is an ultrasonic wavelength, the receiving port 11 is disposed at the center of the ultrasonic receiving window 1 , and when used, since the ultrasonic receiving window 1 is provided, the ultrasonic receiving window 1
- the shield portion 12 shields some ultrasonic echoes or other clicks, improving the reception effect.
- a preferred embodiment of the present invention is: the receiving port includes a longitudinal direction L of the opening and a width direction H of the opening, and a longitudinal direction L of the opening is longer than a width direction H of the opening, 5a,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
- a preferred embodiment of the present invention is: the receiving port has an elliptical shape, and the major axis L of the ellipse is 0. 8a to 1.2. 2a, the a is an ultrasonic wavelength, the ellipse The short axis H is 0.3a to 0.5a, and the a is an ultrasonic wavelength.
- a specific embodiment of the present invention is: constructing an ultrasonic input device, including an ultrasonic receiving end host 3 for acquiring input information, an operation terminal 5 for operating input, and an operation plane 4 for inputting the operation terminal 5 And an ultrasonic receiving window 1,
- the operating end 5 includes an ultrasonic generator 51 that generates ultrasonic waves
- the ultrasonic receiving end main body 3 includes an ultrasonic receiver 31 that receives ultrasonic waves generated by the ultrasonic generator 51, at the ultrasonic receiver
- the front end of the 31 is provided with an ultrasonic receiving window 1, which includes a receiving port 11 for receiving ultrasonic waves, and the receiving port 11 faces the ultrasonic receiver 31.
- the long direction L of the opening of the receiving port is perpendicular to the operating plane 4, so that the ultrasonic receiving effect is better.
- the ultrasonic receiving end host 3 of the ultrasonic input device further includes an infrared generating unit 52 that emits an infrared signal, an infrared signal amplifying module (not shown), and infrared signal receiving.
- an infrared signal generating unit 52 that emits an infrared signal
- an infrared signal amplifying module not shown
- control unit not shown
- interface unit not shown
- processor Unit not shown.
- the ultrasonic input device input device performs an input operation on the operation plane 4 through the operation end 5, the operation contact 53 touches an electronic switch (not shown), and the control unit generates the ultrasonic wave
- the generator 51 and the infrared generating unit issue an instruction, the ultrasonic generating generator 51 emits ultrasonic waves, and the infrared generating unit 13 emits an infrared signal.
- the ultrasonic receiving end host 3 is in operation, the ultrasonic receiver 31 receives the ultrasonic wave, and the infrared receiving unit receives the infrared signal.
- the ultrasonic signal and the infrared signal are amplified and transmitted to the control unit, and the control unit acquires input information according to the definition of the input area, electronically inputs the input information, and completes an electronic input of the track information to the operation plane when the ultrasonic input is used.
- the singularity of the receiving port 11 is 0. 24 a 2 to 0. 6 a 2 , the a is an ultrasonic wavelength, the receiving port 11 is disposed at the center of the ultrasonic receiving window 1 , and when used, since the ultrasonic receiving window 1 is disposed, the shielding portion 12 of the ultrasonic receiving window 1 shields some ultrasonic waves Echo or other clicks improve reception.
- a preferred embodiment of the present invention is: the ultrasonic receiver 31 and the ultrasonic receiving window 1 are disposed in a cavity 6, and the ultrasonic receiver 31 and the ultrasonic receiving window 1 are both contracted. A distance is entered into the cavity 6 to avoid electrostatic breakdown of the ultrasonic receiver 31. In the embodiment, the ultrasonic receiver 31 and the ultrasonic receiving window 1 are retracted within the cavity 6 by 4 mm. At the same time, the ultrasonic receiving window 1 also has a protective effect on the ultrasonic receiver 31 by using a non-conductive medium.
- a preferred embodiment of the present invention is: the receiving port includes a longitudinal direction L of the opening and a width direction H of the opening, and a longitudinal direction L of the opening is longer than a width direction H of the opening, 5a,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
- the first type is a porous opening ultrasonic receiving window, using this type of ultrasonic receiving window, its input The trajectory good rate is 20%; the second is an ultrasonic receiving window with a small circular opening, using this type of ultrasonic receiving window, the input trajectory good rate is 50%; the third is the louvered opening ultrasonic receiving window 95%; The fifth type is a strip shape, and the input trajectory is good at a rate of 99. 95%; 99%; The input trajectory good rate is 99.
- an ultrasonic receiving window of the present invention the ultrasonic wave reception window includes a shield portion and a shield ultrasonic receiving opening receiving an ultrasonic wave, the area of the receiving opening of 0. 24 a 2 to 0. 6 a 2 , the a is an ultrasonic wavelength, and the receiving port is opposite to the ultrasonic receiver.
- the ultrasonic receiving window of the present invention also has the function of protecting the ultrasonic receiver from damage. According to the present invention, by providing an ultrasonic receiving window at the front end of the ultrasonic receiver, it is possible to filter partial noise and echo generated by the ultrasonic wave, and submit the ultrasonic receiving effect.
- the ultrasonic input device of the invention makes the input trajectory more continuous through the application of the ultrasonic receiving window, effectively prevents the occurrence of the "flying line" and improves the input effect.
Abstract
Disclosed is an ultrasonic wave receiving window (1), which comprises an ultrasonic wave receiving port (11) and a shielding portion (12) for shielding ultrasonic waves; the receiving port (11) has an area of 0.24 a2 to 0.6 a2, where a is the wavelength of an ultrasonic wave, and the receiving port (11) is exactly opposite to an ultrasonic wave receiver (31). The ultrasonic wave receiving window (1) functions to protect the ultrasonic wave receiver (31) from being damaged. By providing an ultrasonic wave receiving window (1) at the front end of the ultrasonic wave receiver (31), the present invention can filter some noise and echoes produced by the ultrasonic wave, improving the reception result of the ultrasonic wave. By using the ultrasonic wave receiving window (1), the ultrasonic wave input device of the present invention makes the input paths more continuous and effectively prevents the production of "fly lines", improving the input result.
Description
一种超声波接收窗及超声波输入装置 技术领域 Ultrasonic receiving window and ultrasonic input device
本发明涉及一种超声波接收窗及超声波输入装置，尤其涉及一种过滤超声波嗓声的超 声波接收窗及超声波输入装置。 背景技术 随着超声波技术的发展，利用超声波定位技术进行输入轨迹的复制也越来越广泛地用 于超声波输入装置。 在超声波在传输过程中， 通过折射或反射后， 其传输距离会改变， 传 输的时间也不一致， 会导致回声， 产生干扰， 严重影响超声波的接收效果。 特别是在超声 波输入装置中， 回声的干扰往往导致输入轨迹的断断续续， 产生 "飞线"的效果， 严重影 响输入质量。 为了接收效果， 现有超声波接收器通常直接放置在外面， 这容易被碰撞等损 坏超声波接收器， 同时也容易使超声波接收器遭受电击击穿损坏。 发明内容 本发明解决的技术问题是： 构建一种超声波接收窗及超声波输入装置， 克服现在技术 中超声波在传输过程中回声及其它噪声的干扰影响超声波接收效果的技术问题。 The present invention relates to an ultrasonic receiving window and an ultrasonic input device, and more particularly to an ultrasonic receiving window and an ultrasonic input device for filtering ultrasonic hum. BACKGROUND OF THE INVENTION With the development of ultrasonic technology, the use of ultrasonic positioning technology to replicate input trajectories has become more and more widely used in ultrasonic input devices. When the ultrasonic wave is transmitted or reflected, its transmission distance will change, and the transmission time will be inconsistent, which will cause echo and interference, which will seriously affect the ultrasonic receiving effect. Especially in ultrasonic input devices, the interference of the echo often leads to the intermittent input trajectory, which produces the effect of "flying line" and seriously affects the input quality. In order to receive the effect, the existing ultrasonic receiver is usually placed directly outside, which is easily damaged by the collision or the like, and the ultrasonic receiver is easily damaged by the electric shock breakdown. SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to construct an ultrasonic receiving window and an ultrasonic input device, which overcomes the technical problem that the interference of echo and other noises of the ultrasonic wave during the transmission process affects the ultrasonic receiving effect.
本发明的技术方案是： 构建一种超声波接收窗， 所述超声波接收窗包括接收超声波的 接收口和屏蔽超声波的屏蔽部分， 所述接收口的面积为 0. 24a2至 0. 6 a2, 所述 a为一个超 声波波长， 所述单位为超声波波长单位，所述接收口正对超声波接收器。 The method of the present invention is: an ultrasonic receiving window, the receiving window comprising a receiving port for receiving the ultrasonic wave and a shielding portion for shielding the ultrasonic wave, the receiving port having an area of 0. 24a 2 to 0. 6 a 2 , The a is an ultrasonic wavelength, the unit is an ultrasonic wavelength unit, and the receiving port is facing the ultrasonic receiver.
本发明的进一步技术方案是： 所述接收口包括开口的长方向和开口的宽方向， 所述开 口的长方向比所述开口的宽方向长， 所述接收口开口的长方向最长为 0. 8a至1. 2£1， 所述 a为一个超声波波长， 所述接收口开口的宽方向最长为 0. 3a至0. 5£1， 所述 a为一个超声 波波长。 According to a further aspect of the present invention, the receiving port includes a long direction of the opening and a width direction of the opening, a length direction of the opening is longer than a width direction of the opening, and a length of the opening of the receiving port is a longest length of 0. 8a至1. 2£1, the a is an ultrasonic wavelength, and the width direction of the opening of the receiving port is at most 0. 3a to 0. 5£1, the a is an ultrasonic wavelength.
本发明的进一步技术方案是： 所述接收口开口的长方向最长为 1个超声波波长单位， 所述接收口开口的宽方向最长为 0. 35个超声波波长单位。 According to a further aspect of the present invention, the length of the opening of the receiving opening is up to one ultrasonic wavelength unit, and the width of the opening of the receiving opening is up to 0.35 ultrasonic wavelength units.
本发明的进一步技术方案是： 所述接收口为椭圆形状， 所述椭圆的长轴为 0. 8a 至 1. 2a, 所述 a为一个超声波波长， 所述椭圆的短轴为 0. 3£1至0. 5£1， 所述 a为一个超声波 波长。 The singularity of the ellipse is 0. 3A, the long axis of the ellipse is 0. 8a to 1. 2a, the a is an ultrasonic wavelength, and the short axis of the ellipse is 0.30. 1 to 0. 5 £ 1, the a is an ultrasonic wavelength.
本发明的进一步技术方案是： 所述接收口为长方形状， 所述长方形的长为 0. 8a 至
1. 2a, 所述 a为一个超声波波长， 所述长方形的宽为 0. 3£1至0. 5£1， 所述 a为一个超声波 波长。 至至至至至至至至至至至至至至至至至至至至至至至至至至至至至至至至至至至至至至至至 1. a, the a is an ultrasonic wavelength, the width of the rectangle is 0.3 to 1 to 0. 5 £ 1, the a is an ultrasonic wavelength.
本发明的技术方案是： 构建一种超声波输入装置， 包括获取输入信息的超声波接收端 主机、 操作输入的操作端、 所述操作端进行输入的操作平面及超声波接收窗， 所述操作端 包括发生超声波的超声波发生器，所述超声波接收端主机包括接收所述超声波发生器产生 的超声波的超声波接收器， 在所述超声波接收器前端设置超声波接收窗， 所述超声波接收 窗包括接收超声波的接收口， 所述接收口正对所述超声波接收器。 The technical solution of the present invention is: constructing an ultrasonic input device, comprising: an ultrasonic receiving end host for acquiring input information, an operation end for operating input, an operation plane for inputting the operation end, and an ultrasonic receiving window, wherein the operation end includes occurrence An ultrasonic ultrasonic generator, the ultrasonic receiving end main body includes an ultrasonic receiver that receives ultrasonic waves generated by the ultrasonic generator, and an ultrasonic receiving window is disposed at a front end of the ultrasonic receiver, the ultrasonic receiving window including a receiving port for receiving ultrasonic waves The receiving port is facing the ultrasonic receiver.
本发明的进一步技术方案是： 所述超声波接收器和所述所述超声波接收窗设置在腔 内， 所述超声波接收器和所述超声波接收窗在所述腔内縮进设置。 According to a further aspect of the present invention, the ultrasonic receiver and the ultrasonic receiving window are disposed in a cavity, and the ultrasonic receiver and the ultrasonic receiving window are retracted in the cavity.
本发明的进一步技术方案是： 所述接收口包括开口的长方向和开口的宽方向， 所述开 口的长方向比所述开口的宽方向长， 所述接收口开口的长方向最长为 0. 8a至1. 2£1， 所述 a为一个超声波波长， 所述接收口开口的宽方向最长为 0. 3a至0. 5£1， 所述 a为一个超声 波波长。 According to a further aspect of the present invention, the receiving port includes a long direction of the opening and a width direction of the opening, a length direction of the opening is longer than a width direction of the opening, and a length of the opening of the receiving port is a longest length of 0. 8a至1. 2£1, the a is an ultrasonic wavelength, and the width direction of the opening of the receiving port is at most 0. 3a to 0. 5£1, the a is an ultrasonic wavelength.
本发明的进一步技术方案是： 所述所述接收口开口的长方向与所述操作平面垂直。 本发明的技术效果是： 本发明一种超声波接收窗， 所述超声波接收窗包括接收超声波 的接收口和屏蔽超声波的屏蔽部分， 所述接收口的面积为 0. 24a2至 0. 6 a2， 所述 a为一个 超声波波长， 所述接收口正对超声波接收器。 另外， 本发明的超声波接收窗还具有保护超 声波接收器免遭损坏的作用。本发明通过在所述超声波接收器前端设置超声波接收窗， 可 以过滤部分噪音及超声波产生的回声， 提交超声波的接收效果。本发明超声波输入装置通 过超声波接收窗的应用， 使输入轨迹的更加连续， 有效地防止 "飞线"的发生， 提高输入 效果。 附图说明 图 1为本发明超声波接收窗的结构示意图。 According to a further technical solution of the present invention, the long direction of the opening of the receiving port is perpendicular to the operating plane. The abundance of the receiving port of the receiving port is 0. 24a 2 to 0. 6 a 2 The a is an ultrasonic wavelength, and the receiving port is opposite to the ultrasonic receiver. In addition, the ultrasonic receiving window of the present invention also has the function of protecting the ultrasonic receiver from damage. According to the present invention, by providing an ultrasonic receiving window at the front end of the ultrasonic receiver, it is possible to filter partial noise and echo generated by the ultrasonic wave, and submit the ultrasonic receiving effect. The ultrasonic input device of the invention makes the input trajectory more continuous through the application of the ultrasonic receiving window, effectively prevents the occurrence of the "flying line" and improves the input effect. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic structural view of an ultrasonic receiving window of the present invention.
图 2为本发明超声波接收窗的椭圆形结构示意图。 2 is a schematic view showing the elliptical structure of the ultrasonic receiving window of the present invention.
图 3为本发明超声波输入装置的结构示意图。 3 is a schematic structural view of an ultrasonic input device of the present invention.
图 4为本发明多种形状超声波接收窗的接收效果对比图。 具体实施方式 下面结合具体实施例， 对本发明技术方案进一步说明。
如图 1所示， 本发明的具体实施方式是： 构建一种超声波接收窗， 所述超声波接收窗 1包括接收超声波的接收口 11和屏蔽超声波的屏蔽部分 12，所述接收口 11的面积为 0. 24a2 至 0. 6 a2， 所述 a为一个超声波波长， 所述单位为超声波波长单位，所述接收口 11设置在 所述超声波接收窗 1的中央， 所述接收口 11正对超声波接收器， 所述接收口 11为一个。 本发明还包括支撑超声波接收窗 1的支架 2。 Figure 4 is a comparison diagram of the receiving effects of the ultrasonic receiving windows of various shapes of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The technical solutions of the present invention will be further described below in conjunction with specific embodiments. As shown in FIG. 1, a specific embodiment of the present invention is: constructing an ultrasonic receiving window, the ultrasonic receiving window 1 includes a receiving port 11 for receiving ultrasonic waves and a shielding portion 12 for shielding ultrasonic waves, and the area of the receiving port 11 is 0. 24a 2 to 0. 6 a 2 , the a is an ultrasonic wavelength, the unit is an ultrasonic wavelength unit, the receiving port 11 is disposed at the center of the ultrasonic receiving window 1, and the receiving port 11 is opposite The ultrasonic receiver has one receiving port 11 . The present invention also includes a bracket 2 that supports the ultrasonic receiving window 1.
如图 1所示， 本发明的具体实施过程如下： 所述超声波接收窗 1设置在超声波接收器 的前端，所述所述接收口 11正对超声波接收器，所述接收口 11的面积为 0. 24a2至 0. 6 a2, 所述 a为一个超声波波长， 所述接收口 11设置在所述超声波接收窗 1的中央， 使用时， 由于设置了超声波接收窗 1， 超声波接收窗 1的屏蔽部分 12会屏蔽一些超声波回音或其 它嗓声， 提高了接收效果。 As shown in FIG. 1, the specific implementation process of the present invention is as follows: The ultrasonic receiving window 1 is disposed at the front end of the ultrasonic receiver, and the receiving port 11 faces the ultrasonic receiver, and the receiving port 11 has an area of 0. 24a 2 to 0. 6 a 2 , the a is an ultrasonic wavelength, the receiving port 11 is disposed at the center of the ultrasonic receiving window 1 , and when used, since the ultrasonic receiving window 1 is provided, the ultrasonic receiving window 1 The shield portion 12 shields some ultrasonic echoes or other clicks, improving the reception effect.
如图 1所示， 本发明的优选实施方式是： 所述接收口包括开口的长方向 L和开口的宽 方向 H， 所述开口的长方向 L比所述开口的宽方向 H长， 所述接收口开口的长方向 L最长 为 0. 8£1至 1. 2£1， 所述 a为一个超声波波长， 所述接收口开口的宽方向 H最长为 0. 3a至 0. 5a, 所述 a为一个超声波波长。 具体实施例中， 所述接收口开口的长方向 L最长为 1个 超声波波长单位， 所述接收口开口的宽方向 H最长为 0. 35个超声波波长单位。 所述接收 口为长方形状， 所述长方形的长 L为 0. 8£1至1. 2£1， 所述 a为一个超声波波长， 所述长方 形的宽 H为 0. 3£1至0. 5£1， 所述 a为一个超声波波长。 As shown in FIG. 1, a preferred embodiment of the present invention is: the receiving port includes a longitudinal direction L of the opening and a width direction H of the opening, and a longitudinal direction L of the opening is longer than a width direction H of the opening, 5a,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The a is an ultrasonic wavelength. In the specific embodiment, the length L of the opening of the receiving port is 1 ultrasonic wavelength unit, and the width direction H of the opening of the receiving opening is 0. 35 ultrasonic wavelength units. The singularity of the rectangle is 0. 3£1 to 0. The width of the rectangle is 0. 3£1 to 0. 5 £1, the a is an ultrasonic wavelength.
如图 2所示， 本发明的优选实施方式是： 所述接收口为椭圆形状， 所述椭圆的长轴 L 为 0. 8a至 1. 2a， 所述 a为一个超声波波长， 所述椭圆的短轴 H为 0. 3a至 0. 5a， 所述 a 为一个超声波波长。 As shown in FIG. 2, a preferred embodiment of the present invention is: the receiving port has an elliptical shape, and the major axis L of the ellipse is 0. 8a to 1.2. 2a, the a is an ultrasonic wavelength, the ellipse The short axis H is 0.3a to 0.5a, and the a is an ultrasonic wavelength.
如图 3所示， 本发明的具体实施方式是： 构建一种超声波输入装置， 包括获取输入信 息的超声波接收端主机 3、 操作输入的操作端 5、 所述操作端 5进行输入的操作平面 4及 超声波接收窗 1， 所述操作端 5包括发生超声波的超声波发生器 51， 所述超声波接收端主 机 3包括接收所述超声波发生器 51产生的超声波的超声波接收器 31， 在所述超声波接收 器 31前端设置超声波接收窗 1， 所述超声波接收窗 1包括接收超声波的接收口 11， 所述 接收口 11正对所述超声波接收器 31。 具体实施过程中， 所述所述接收口开口的长方向 L 与所述操作平面 4垂直， 这样超声波接收效果更好。 As shown in FIG. 3, a specific embodiment of the present invention is: constructing an ultrasonic input device, including an ultrasonic receiving end host 3 for acquiring input information, an operation terminal 5 for operating input, and an operation plane 4 for inputting the operation terminal 5 And an ultrasonic receiving window 1, the operating end 5 includes an ultrasonic generator 51 that generates ultrasonic waves, and the ultrasonic receiving end main body 3 includes an ultrasonic receiver 31 that receives ultrasonic waves generated by the ultrasonic generator 51, at the ultrasonic receiver The front end of the 31 is provided with an ultrasonic receiving window 1, which includes a receiving port 11 for receiving ultrasonic waves, and the receiving port 11 faces the ultrasonic receiver 31. In a specific implementation, the long direction L of the opening of the receiving port is perpendicular to the operating plane 4, so that the ultrasonic receiving effect is better.
如图 3所示， 本发明具体实施过程如下： 所述超声波输入装置的超声波接收端主机 3 还包括发射红外信号的红外发生单元 52、 红外信号放大模块 （图中未示出） 、 红外信号 接收单元 （图中未示出） 、 控制单元 （图中未示出） 、 接口单元 （图中未示出） 、 处理器
单元（图中未示出） 。 工作时， 所述超声波输入装置输入装置通过所述操作端 5在所述操 作平面 4进行输入操作， 所述操作触头 53触动电子开关 （图中未示出） ， 控制单元向所 述超声波发生发生器 51和所述红外发生单元发出指令，所述超声波发生发生器 51发出超 声波， 所述红外发生单元 13发出红外信号。 超声波接收端主机 3工作时， 所述超声波接 收器 31接收所述超声波， 所述红外接收单元接收所述红外信号。 所述超声波信号和红外 信号经放大后传输到所述控制单元， 所述控制单元根据输入区域的定义获取输入信息， 将 输入信息电子化， 完成利用超声波输入时对其操作平面输入轨迹信息的电子化。使用过程 中， 所述超声波接收窗 1设置在超声波接收器 31的前端， 所述所述接收口 11正对超声波 接收器 31， 所述接收口 11的面积为 0. 24 a2至 0. 6 a2, 所述 a为一个超声波波长， 所述 接收口 11设置在所述超声波接收窗 1 的中央， 使用时， 由于设置了超声波接收窗 1， 超 声波接收窗 1的屏蔽部分 12会屏蔽一些超声波回音或其它嗓声， 提高了接收效果。 As shown in FIG. 3, the specific implementation process of the present invention is as follows: The ultrasonic receiving end host 3 of the ultrasonic input device further includes an infrared generating unit 52 that emits an infrared signal, an infrared signal amplifying module (not shown), and infrared signal receiving. Unit (not shown), control unit (not shown), interface unit (not shown), processor Unit (not shown). In operation, the ultrasonic input device input device performs an input operation on the operation plane 4 through the operation end 5, the operation contact 53 touches an electronic switch (not shown), and the control unit generates the ultrasonic wave The generator 51 and the infrared generating unit issue an instruction, the ultrasonic generating generator 51 emits ultrasonic waves, and the infrared generating unit 13 emits an infrared signal. When the ultrasonic receiving end host 3 is in operation, the ultrasonic receiver 31 receives the ultrasonic wave, and the infrared receiving unit receives the infrared signal. The ultrasonic signal and the infrared signal are amplified and transmitted to the control unit, and the control unit acquires input information according to the definition of the input area, electronically inputs the input information, and completes an electronic input of the track information to the operation plane when the ultrasonic input is used. Chemical. The singularity of the receiving port 11 is 0. 24 a 2 to 0. 6 a 2 , the a is an ultrasonic wavelength, the receiving port 11 is disposed at the center of the ultrasonic receiving window 1 , and when used, since the ultrasonic receiving window 1 is disposed, the shielding portion 12 of the ultrasonic receiving window 1 shields some ultrasonic waves Echo or other clicks improve reception.
如图 3所示， 本发明的优选实施方式是： 所述超声波接收器 31和所述所述超声波接 收窗 1设置在腔 6内， 所述超声波接收器 31和所述超声波接收窗 1均縮进腔 6内一段距 离以避免静电击穿所述超声波接收器 31， 具体实施例中， 所述超声波接收器 31和所述超 声波接收窗 1在所述腔 6内縮进 4毫米。 同时， 所述超声波接收窗 1采用非导电介质也对 所述超声波接收器 31具有保护作用。 As shown in FIG. 3, a preferred embodiment of the present invention is: the ultrasonic receiver 31 and the ultrasonic receiving window 1 are disposed in a cavity 6, and the ultrasonic receiver 31 and the ultrasonic receiving window 1 are both contracted. A distance is entered into the cavity 6 to avoid electrostatic breakdown of the ultrasonic receiver 31. In the embodiment, the ultrasonic receiver 31 and the ultrasonic receiving window 1 are retracted within the cavity 6 by 4 mm. At the same time, the ultrasonic receiving window 1 also has a protective effect on the ultrasonic receiver 31 by using a non-conductive medium.
如图 1所示， 本发明的优选实施方式是： 所述接收口包括开口的长方向 L和开口的宽 方向 H， 所述开口的长方向 L比所述开口的宽方向 H长， 所述接收口开口的长方向 L最长 为 0. 8£1至 1. 2£1， 所述 a为一个超声波波长， 所述接收口开口的宽方向 H最长为 0. 3a至 0. 5a, 所述 a为一个超声波波长。 具体实施例中， 所述接收口开口的长方向 L最长为 1个 超声波波长单位， 所述接收口开口的宽方向 H最长为 0. 35个超声波波长单位。 所述接收 口为长方形状， 所述长方形的长 L为 0. 8£1至1. 2£1， 所述 a为一个超声波波长， 所述长方 形的宽 H为 0. 3£1至0. 5£1， 所述 a为一个超声波波长。 As shown in FIG. 1, a preferred embodiment of the present invention is: the receiving port includes a longitudinal direction L of the opening and a width direction H of the opening, and a longitudinal direction L of the opening is longer than a width direction H of the opening, 5a,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The a is an ultrasonic wavelength. In the specific embodiment, the length L of the opening of the receiving port is 1 ultrasonic wavelength unit, and the width direction H of the opening of the receiving opening is 0. 35 ultrasonic wavelength units. The singularity of the rectangle is 0. 3£1 to 0. The width of the rectangle is 0. 3£1 to 0. 5 £1, the a is an ultrasonic wavelength.
如图 4所示， 对超声波输入装置中应用几种不同类型的超声波接收窗进行实验， 结果 分别如下： 第一种为多孔形开口的超声波接收窗， 使用该种类型的超声波接收窗， 其输入 轨迹良好率为 20%; 第二种为一个小圆孔开口的超声波接收窗， 使用该种类型的超声波接 收窗， 其输入轨迹良好率为 50%; 第三种为百叶窗形开口的超声波接收窗， 使用该种类型 的超声波接收窗， 其输入轨迹良好率为 80%; 第四种为条形开口横放的超声波接收窗， 其 输入轨迹良好率为 99. 95%; 第五种为条形开口竖放的超声波接收窗， 其输入轨迹良好率 为 99. 99%；
本发明的技术效果是： 本发明一种超声波接收窗， 所述超声波接收窗包括接收超声波 的接收口和屏蔽超声波的屏蔽部分， 所述接收口的面积为 0. 24 a2至 0. 6 a2, 所述 a为一 个超声波波长， 所述接收口正对超声波接收器。 另外， 本发明的超声波接收窗还具有保护 超声波接收器免遭损坏的作用。 本发明通过在所述超声波接收器前端设置超声波接收窗， 可以过滤部分噪音及超声波产生的回声， 提交超声波的接收效果。本发明超声波输入装置 通过超声波接收窗的应用， 使输入轨迹的更加连续， 有效地防止 "飞线"的发生， 提高输 入效果。 As shown in Fig. 4, several different types of ultrasonic receiving windows are applied to the ultrasonic input device, and the results are as follows: The first type is a porous opening ultrasonic receiving window, using this type of ultrasonic receiving window, its input The trajectory good rate is 20%; the second is an ultrasonic receiving window with a small circular opening, using this type of ultrasonic receiving window, the input trajectory good rate is 50%; the third is the louvered opening ultrasonic receiving window 95%; The fifth type is a strip shape, and the input trajectory is good at a rate of 99. 95%; 99%; The input trajectory good rate is 99. 99%; Technical effect of the invention is: an ultrasonic receiving window of the present invention, the ultrasonic wave reception window includes a shield portion and a shield ultrasonic receiving opening receiving an ultrasonic wave, the area of the receiving opening of 0. 24 a 2 to 0. 6 a 2 , the a is an ultrasonic wavelength, and the receiving port is opposite to the ultrasonic receiver. In addition, the ultrasonic receiving window of the present invention also has the function of protecting the ultrasonic receiver from damage. According to the present invention, by providing an ultrasonic receiving window at the front end of the ultrasonic receiver, it is possible to filter partial noise and echo generated by the ultrasonic wave, and submit the ultrasonic receiving effect. The ultrasonic input device of the invention makes the input trajectory more continuous through the application of the ultrasonic receiving window, effectively prevents the occurrence of the "flying line" and improves the input effect.
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发 明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说， 在不脱 离本发明构思的前提下， 还可以做出若干简单推演或替换， 都应当视为属于本发明的保护 范围。
The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the invention.
Claims
1.一种超声波接收窗，其特征在于，所述超声波接收窗包括接收超声波的接收口和屏 蔽超声波的屏蔽部分， 所述接收口的面积为 0. 24a2至 0. 6 a2， 所述 a为一个超声波波长， 所述接收口正对超声波接收器。 I. The ultrasonic receiving window, wherein the ultrasonic receiving window comprises a receiving port for receiving the ultrasonic wave and a shielding portion for shielding the ultrasonic wave, the receiving port having an area of 0. 24a 2 to 0. 6 a 2 , a is an ultrasonic wavelength, and the receiving port faces the ultrasonic receiver.
2.根据权利要求 1所述超声波接收窗，其特征在于，所述接收口包括开口的长方向和 开口的宽方向，所述开口的长方向比所述开口的宽方向长，所述接收口开口的长方向最长 为 0. 8a至 1. 2a,所述 a为一个超声波波长，所述接收口开口的宽方向最长为 0. 3a至 0. 5a, 所述 a为一个超声波波长。 The ultrasonic receiving window according to claim 1, wherein the receiving opening comprises a longitudinal direction of the opening and a width direction of the opening, and a length direction of the opening is longer than a width direction of the opening, the receiving port The a is an ultrasonic wavelength. The length of the opening is 0. 8a to 1. 2a, the a is an ultrasonic wavelength, and the width of the opening of the receiving opening is 0. 3a to 0. 5a.
3.根据权利要求 2所述超声波接收窗，其特征在于，所述接收口开口的长方向最长为 The ultrasonic receiving window according to claim 2, wherein the length of the opening of the receiving opening is the longest
1个超声波波长单位，所述接收口开口的宽方向最长为 0. 35 a,所述 a为一个超声波波长。 1 ultrasonic wavelength unit, the width direction of the opening of the receiving port is up to 0.35 a, and the a is an ultrasonic wavelength.
4.根据权利要求 2所述超声波接收窗， 其特征在于， 所述接收口为椭圆形状， 所述椭 圆的长轴为 0. 8£1至 1. 2a， 所述 a为一个超声波波长， 所述椭圆的短轴为 0. 3a至 0. 5a， 所述 a为一个超声波波长。 The ultrasonic receiving wavelength according to claim 2, wherein the receiving port has an elliptical shape, and the major axis of the ellipse is 0. 8£1 to 1. 2a, the a is an ultrasonic wavelength, The short axis of the ellipse is 0.3a to 0.5a, and the a is an ultrasonic wavelength.
5.根据权利要求 2所述超声波接收窗， 其特征在于， 所述接收口为长方形状， 所述长 方形的长为 0. 8£1至 1. 2a， 所述 a为一个超声波波长， 所述长方形的宽为 0. 3a至 0. 5a， 所述 a为一个超声波波长。 The ultrasonic receiving wavelength according to claim 2, wherein the receiving port has a rectangular shape, and the length of the rectangle is 0.8 lb to 1. 2a, the a is an ultrasonic wavelength, The width of the rectangle is 0.3a to 0.5a, and the a is an ultrasonic wavelength.
6.一种应用上述任一权利要求的超声波输入装置，包括获取输入信息的超声波接收端 主机、操作输入的操作端、所述操作端进行输入的操作平面及超声波接收窗， 所述操作端 包括发生超声波的超声波发生器，所述超声波接收端主机包括接收所述超声波发生器产生 的超声波的超声波接收器， 其特征在于， 在所述超声波接收器前端设置超声波接收窗， 所 述超声波接收窗包括接收超声波的接收口， 所述接收口正对所述超声波接收器。 6. An ultrasonic input device according to any of the preceding claims, comprising an ultrasonic receiving end host for acquiring input information, an operating end for operating the input, an operating plane for inputting the operating terminal, and an ultrasonic receiving window, the operating end comprising An ultrasonic generator that generates ultrasonic waves, the ultrasonic receiving end host includes an ultrasonic receiver that receives ultrasonic waves generated by the ultrasonic generator, wherein an ultrasonic receiving window is disposed at a front end of the ultrasonic receiver, and the ultrasonic receiving window includes Receiving a receiving port of the ultrasonic wave, the receiving port is facing the ultrasonic receiver.
7.根据权利要求 6所述的超声波输入装置，其特征在于，所述超声波接收器和所述所 述超声波接收窗设置在腔内， 所述超声波接收器和所述超声波接收窗在所述腔内縮进设 置。 The ultrasonic input device according to claim 6, wherein the ultrasonic receiver and the ultrasonic receiving window are disposed in a cavity, and the ultrasonic receiver and the ultrasonic receiving window are in the cavity Indentation settings.
8.根据权利要求 6所述的超声波输入装置，其特征在于，所述接收口包括开口的长方 向和开口的宽方向，所述开口的长方向比所述开口的宽方向长，所述接收口开口的长方向 最长为 0. 8a至 1. 2a, 所述 a为一个超声波波长， 所述接收口开口的宽方向最长为 0. 3a 至 0. 5a， 所述 a为一个超声波波长。 The ultrasonic input device according to claim 6, wherein the receiving opening comprises a longitudinal direction of the opening and a width direction of the opening, and a longitudinal direction of the opening is longer than a width direction of the opening, the receiving 5a, the a is an ultrasonic wavelength, the longest direction of the mouth opening is 0. 8a to 1. 2a, the a is an ultrasonic wavelength, the width of the opening of the receiving opening is 0. 3a to 0. 5a, the a is an ultrasonic wavelength .
9.根据权利要求 6所述的超声波输入装置，其特征在于，所述所述接收口开口的长方 向与所述操作平面垂直。 The ultrasonic input device according to claim 6, wherein the receiving port is rectangular It is perpendicular to the operation plane.
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| CN102183758A (en) | 2011-09-14 |
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