201043307 六、發明說明： 【發明所屬之技術領域】 一種於光學指向系統提高對背景光雜訊忍受度之方 法，特別是一種應用於遊戲週邊裝置之光學指向系統中提 高對背景光雜訊忍受度的方法。 【先前技術】 光學指向裝置，以光學方式傳輸指向訊號之裝置，可 應用於互動式電玩遊戲中之訊號輸入，作為動作感測追蹤 之用，或是，廣義言之，可應用於電腦中以控制游標在電 腦螢幕上之位置，作為代替滑鼠之指向羧置。 互動式電動遊戲，無論是電視遊戲或電腦遊戲，皆是 相當受歡迎的休閒娛樂。大體來說，電腦遊戲牽涉計算機 對電腦軟體的執行，及電腦輸入周邊裝置的操作，像是鍵 盤、滑鼠、搖桿和跳舞機等。然而，這些電腦輸入周邊裝 置的操作方式使传電動遊戲不夠逼真。是故’為了使遊戲 更刺激有趣，能捕捉玩家動作的「光學指向系統」應運而 生。如第1圖所示，該光學指向系統100本質上為一攝影 鏡頭101搭配一光指向器1〇2，該光指向器在外型上可配 合遊戲採用各式造型，如球棒、手搶、劍、方向盤等。而 攝影鏡頭可捕捉指向裝置之動態，使得該組指向系統之訊 號傳輸得以無線化以克服玩家在進行3D動作遊戲時之不 便。再者，「指向裝置」從傳統自身不具光源，表面塗敷 以反光材質的被動式指向器（passive marker)，改進成具有201043307 VI. Description of the Invention: [Technical Field of the Invention] A method for improving the tolerance of background light noise in an optical pointing system, in particular, an optical pointing system applied to a peripheral device of a game to improve background noise tolerance Methods. [Prior Art] An optical pointing device optically transmits a pointing signal device, which can be applied to signal input in an interactive video game, as a motion sensing tracking, or, in a broad sense, can be applied to a computer. Controls the position of the cursor on the computer screen as a replacement for the mouse. Interactive video games, whether they are video games or computer games, are quite popular entertainment. In general, computer games involve the execution of computer software on computers, and the operation of computer input peripheral devices, such as keyboards, mice, joysticks, and dance machines. However, the operation of these computer input peripherals makes the transmission of the video game less realistic. Therefore, in order to make the game more exciting and interesting, the "optical pointing system" that captures the player's movements came into being. As shown in FIG. 1 , the optical pointing system 100 is essentially a photographic lens 101 coupled with a light directional device 1 〇 2, which can be used in various shapes in the appearance of the game, such as a bat, a hand grab, Sword, steering wheel, etc. The photographic lens captures the dynamics of the pointing device, allowing the transmission of the signal to the system to be wireless to overcome the inconvenience of the player in performing a 3D action game. Furthermore, the "pointing device" has been modified from having a conventional passive light source with a light source and a passive marker.
0944-A41441TWF 4 201043307 光源之指向器，以避免傳統被動式指向器需要外加投射光 源、以及需將背景光源控制在合理範圍内之不便。最後， 内建光源之指向器其光源可選用可見光或不可見光，而在 使用上，發出可見光之指向器可能會影響玩家視覺而造成 不適且其光學訊號易被背景光所干擾，故在該指向器之設 計多使用不可見光中之紅外線。使用紅外線作為光源之指 向器具有省電及價格低廉之優勢，自當成為業界設計該產 品之首選。 然而，在我們生活環境中其實充滿了紅外線，物體只 要有熱就會發出熱輻射，而這些熱輻射（即所謂的紅外線) 可能造成攝影鏡頭101捕捉的畫面106中的雜訊105，而 使由指向器102發射出之光點104無法辨識。此外，攝影 鏡頭中之光學感測元件，如電荷耦合裝置（charge coupled device，CCD)在製造上的瑕疵，也可能使得光學指向系統 無可避免的遭遇到背景雜訊干擾之問題。 【發明内容】 有鑑於此，本發明主要目的係提供一種光學指向系 統，可提高對背景光雜訊忍受度。本發明之光學指向系 統，包括：一第一光指向器包括一第一光發射部，用以發 射-第-特定數目光點裝置，其耦接該第 -光發射部’用以控制該第—特定數目光點以——般模式 或以-特定閃動模式發出以及—光接收器，用以捕捉該第 特疋數目光點’且斷所接收之背景光之雜訊狀況；當 該背景光之雜訊達到1值，則切換第—光指向器工作二0944-A41441TWF 4 201043307 The pointer of the light source to avoid the inconvenience that the conventional passive pointer needs to add a projection light source and the background light source needs to be controlled within a reasonable range. Finally, the pointer of the built-in light source may use visible light or invisible light, and in use, the visible light director may affect the player's vision and cause discomfort and the optical signal is easily interfered by the background light, so the pointing The design of the device uses infrared rays in invisible light. The use of infrared light as a light source has the advantages of power saving and low cost, and has become the first choice for the industry to design this product. However, in our living environment, it is actually full of infrared rays. Whenever an object has heat, it emits heat radiation, and these heat radiation (so-called infrared rays) may cause noise 105 in the picture 106 captured by the photographic lens 101. The spot 104 emitted by the pointer 102 is unrecognizable. In addition, the optical sensing components in the photographic lens, such as the charge-coupled device (CCD) manufacturing defects, may also cause the optical pointing system to inevitably suffer from background noise interference. SUMMARY OF THE INVENTION In view of the above, it is a primary object of the present invention to provide an optical pointing system that improves background noise tolerance. The optical pointing system of the present invention includes: a first optical directional device comprising a first light emitting portion for transmitting a -first specific number of light spot devices coupled to the first light emitting portion for controlling the first - a specific number of spots are emitted in a normal mode or in a -specific flash mode and - an optical receiver for capturing the number of spots of the first feature and interrupting the noise of the received background light; When the noise of light reaches 1 value, the first light pointer is switched.
0944-A41441TWF 201043307 式，令該第—特定數目光點由一般模式切換至一特定閃動 模式發出，藉以提高對背景光雜訊忍受度。傳統之指向器 只以單一種模式發出光點’常見是使光點以不閃動的方式 發出（即本發明中之一般模式）’而本發明可使指向器切換 於多種特定閃動模式間（包括該一般模式及該閃動模式，其 中閃動模式又有多種槊態，詳見後文之實施方式），將有效 改進背景雜訊干擾的情形。除了提高對背景光忍受度外， 本發明之另一目的為，在使用一個以上光指向器的光學指 向系統中’利用給定該等光指向器不同閃動模式冬方式， 達成辨識來自各個光指向器之各個光點之功效。 為使本發明之上述目的、特徵和優點能更明顯易懂， 下文特舉較佳實施例並配合所附圖式做詳細說明。 【實施方式】 為了使貴審查委員能更進一步瞭解本發明為達成預 定目的所採取之技術、手段及功效，請參閱以下有關本發 明之詳細說明及附圖，相信本發明之目的、特徵及特點， 當可由此得一深入且具體之瞭解，然而所附圖示僅提供參 考及說明用，並非用來對本發明加以限制。 第2圖為本發明之光學指向系統2〇〇之線路方塊圖， 該光學指向系、统200主要包括—第—光指㈣21〇，及一 光接收器22G。該第-光指向器21()更包括—第一光發射 部213，用以發射-第-特定數目光點23〇;及一第一驅 動裝置212 ’其據該第-光發射部213，用以控制該第 一特定數目光點230以一般模式或以—狀閃動模式發 0944-A41441TWF 6 201043307 出。在一實施例中’當該第一光接收器220判斷光指向器 210其所處環境中背景光之雜訊達到一閾值時，即切換第 一光指向器210工作模式，令該第一特定數目光點230以 一特定閃動模式發出。光接收器220可用以捕捉該第—特 定數目光點230，依照此發明，該第一光接收器220可更 輕易地對該第一特定數目光點230進行辨識。若特定閃動 模式無法有效進行辨識時則重覆上述步驟切換第一光指 ❹ 向器210工作模式’令該第一特定數目光點230切換成另 一特定閃動模式使得該第一光接收器220可更輕易地對該 第一特定數目光點230進行辨識。在另一實施例中，光接 收器220亦可用於判斷所接收之背景光之雜訊狀況；當該 责景光之雜訊達到一閾值，則輸出一第一控制信號250給 該驅動裝置212，令該第一特定數目光點23Ό以該閃動模 式發出，藉以抑制背景光雜訊。上述之該第一光發射部213 包括一特定數目LED，用以發射紅外線。而上述該光接收 ❹器220又包括一光學感測器221，而該光學感測器為一感 光元件，如電何耗合裝置（Charge Coupled Device, CCD) 或互補式金屬氧化半導體（Complementary Metal-Oxide-Semiconductor，CMOS)感測器等，用以捕捉 該第一特定數目光點230並輸出該第一指向信號240。耦 接於光學感測器221者為一雜訊抑制器222，其用以接收 該第一指向信號240、判斷該第一特定數目光點所處背景 雜訊是否達一閾值’以及輸出該控制信號25〇。背景光之 雜訊狀況可藉由該第一特定數目光點與背景雜訊兩者之0944-A41441TWF 201043307, the first specific number of spots are switched from the normal mode to a specific flash mode, thereby increasing the tolerance to background noise. Conventional directors only emit light spots in a single mode 'commonly to make the light spot emit in a non-flashing manner (ie, the general mode in the present invention)' and the present invention can switch the pointer between a plurality of specific flash modes. (Including the general mode and the flashing mode, wherein the flashing mode has various embarrassing modes, as described in the following embodiments), which will effectively improve the background noise interference. In addition to improving the tolerance to background light, another object of the present invention is to achieve recognition in each optical light by using a different flash mode winter mode for a given optical director in an optical pointing system using more than one optical director. The effect of each light spot of the pointer. The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims. [Embodiment] In order to enable the reviewing committee to better understand the techniques, means and functions of the present invention for achieving the intended purpose, please refer to the following detailed description of the invention and the accompanying drawings, It is to be understood that the invention is not limited by the scope of the invention. 2 is a circuit block diagram of an optical pointing system of the present invention. The optical pointing system 200 mainly includes a first optical finger (four) 21A and an optical receiver 22G. The first optical director 21() further includes a first light emitting portion 213 for emitting a -first specific number of light spots 23A; and a first driving device 212' according to the first light emitting portion 213, The first specific number of light spots 230 are controlled to be sent in a normal mode or in a flashing mode of 0944-A41441TWF 6 201043307. In an embodiment, when the first optical receiver 220 determines that the noise of the background light in the environment in which the optical directional device 210 is located reaches a threshold, the first optical directional device 210 is switched to operate the mode. The number of spots 230 is emitted in a particular flashing mode. The light receiver 220 can be used to capture the first-specific number of spots 230. According to the invention, the first photo-receiver 220 can more easily identify the first particular number of spots 230. If the specific flashing mode cannot be effectively recognized, repeating the above steps to switch the first optical finger to the operating mode of the device 210 to switch the first specific number of light spots 230 to another specific flashing mode such that the first optical receiver 220 can more easily identify the first particular number of spots 230. In another embodiment, the light receiver 220 can also be used to determine the noise condition of the received background light; when the noise of the scene light reaches a threshold, a first control signal 250 is output to the driving device 212. And causing the first specific number of spots 23 to be emitted in the flashing mode, thereby suppressing background noise. The first light emitting portion 213 described above includes a specific number of LEDs for emitting infrared rays. The optical receiver 220 further includes an optical sensor 221, and the optical sensor is a photosensitive element, such as a Charge Coupled Device (CCD) or a complementary metal oxide semiconductor (Complementary Metal). An Oxide-Semiconductor (CMOS) sensor or the like is configured to capture the first specific number of spots 230 and output the first pointing signal 240. The optical sensor 221 is coupled to the noise detector 222 for receiving the first pointing signal 240, determining whether the background noise of the first specific number of spots reaches a threshold value, and outputting the control. The signal is 25 〇. The noise condition of the background light can be achieved by the first specific number of spots and the background noise
0944-A41441TWF 7 201043307 信號雜訊比（Signal to Noise Ratio，S/Ν)做判斷，且上述閾 值可由雜訊抑制器222所給定。如同先前技術，該光學接 收器220可再包括一動作追蹤感測器223耦接於雜訊抑制 器222,其内含一數位信號處理器（Digital Signal Processor, DSP)及一中央處理單元（Central Processing Unit, CPU)，用 以對該光指向器之動態做後續處理。 參照第3A至3C圖，將有助於了解上述一般模式及閃 動模式。一般模式，如第3A圖，為使第一光發射部213 所發射之該第一特定數目光點230不閃動，即持續亮著不 滅，第一閃動模式，如第3B圖，為使第一光發射部213 之該第一特定數目光點230以—特定頻率閃動，其中該特 定頻率可由上述光接收器220做調整；以及，如第3C圖， 第一閃動模式為使第一光發射部213之該第一特定數目光 點230以一特定型態閃動’其中該特定型態同樣可由上述 光接收器220做調整，舉例而言：特定型態可為：一、如 圖中310，冗和滅時間長度（圖中之τι及τ2)做周期性之 配置，；二、如圖中32〇，閃動頻率（圖中之打及⑼做周 之配置。上述於第工區間内者皆可做為識別之單一訊 號由上述可知，該第一特定數目光點⑽至少包括—光 點值得;主意的是’不同的實施方式可對應不同变態之閃 動方式，熟悉本技藝人士可依照上述各種麼態輕易混合運 用其變化不勝枚舉，是以上述舉例僅為方便說明之用， 並非用以限定本發明。 第4圖為本發明光學指向系統之雜訊抑制方法第-實0944-A41441TWF 7 201043307 The signal to noise ratio (S/Ν) is judged, and the above threshold can be given by the noise suppressor 222. As in the prior art, the optical receiver 220 can further include an action tracking sensor 223 coupled to the noise suppressor 222, which includes a digital signal processor (DSP) and a central processing unit (Central). The processing unit (CPU) is used for subsequent processing of the dynamics of the optical pointer. Referring to Figures 3A through 3C, it will be helpful to understand the above general mode and flash mode. The general mode, as shown in FIG. 3A, is such that the first specific number of light spots 230 emitted by the first light emitting portion 213 does not flash, that is, the light is continuously turned on, and the first flashing mode, as shown in FIG. 3B, The first specific number of light spots 230 of the first light emitting portion 213 are flashed at a specific frequency, wherein the specific frequency can be adjusted by the light receiver 220; and, as shown in FIG. 3C, the first flashing mode is The first specific number of light spots 230 of a light emitting portion 213 is flashed in a specific pattern. The specific pattern can also be adjusted by the light receiver 220. For example, the specific type can be: In the figure 310, the length of the redundancy and the extinction time (the τι and τ2 in the figure) are periodically configured; second, as shown in the figure 32 〇, the flashing frequency (the hit in the figure and (9) is the configuration of the week. A single signal can be used as the single signal for identification. The first specific number of light spots (10) includes at least the light spot value. The idea is that different implementations can correspond to different metamorphosis flashing modes. The skilled person can easily mix and transport according to the above various states. The use of the above examples is merely for convenience of explanation and is not intended to limit the present invention. Fig. 4 is a diagram showing the noise suppression method of the optical pointing system of the present invention.
0944-A41441TWF 201043307 施例之流程圖。合併參考第2圖，當該光學指向系統2〇〇 啟動時直接進入該一般模式，使該第一光指向 器210中之 該第一光發射部213所發射之該第-特定數目光點230不 閃動。該光接收器22〇啟動後持續將所有進入其中該光學 感測器221之光包括該第一特定數目光點230在内轉換成 具有數位影像資訊的_第一指向信號24〇，並輸出至雜訊 抑制器222 ’當雜訊抑制器222判斷背景光之雜訊未達— 設定之閾值而可辨識出該第一特定數目光點230時，則該 雜訊抑制器222不發出任何命令’是以該光學指向系統 200仍以一般模式運作。而當該雜訊抑制器222判斷背景 光之雜訊已超過一設定之閾值時，則對遠端之該第一光指 向器210之該第一驅動裝置212發出一第一控制信號 250 ’使得該第一驅動裝置212驅動該第一光發射部213 以該閃動模式運作，而此方法可使該雜訊抑制器得以更容 易辨識出該第一特定數目光點230而達成抑制該背景光雜 ❹訊之3的。上述該第一控制信號由該雜訊抑制器222傳輪 至該第一驅動裝置212，舉例而言，可以透過無線傳輪之 方式。值得注意的是，上述實施例以該光接收器220做為 判斷背景光雜訊之裝置，然而，熟悉本技藝人士可知，判 斷背景光雜訊之動作不必以該裝置為限，舉例而言，該第 一光指向器210本身即f執行上述動作。 第5圖為具有複數個光指向器的光學指向系統之概要 圖’而下述實施例將以雨個光學指向器做說明，熟悉本技 藝人士當可依據本說明輕易推廣至使用複數個光學指向 0944-A41441TWF 9 201043307 器時之情況。第6圖為本發明光學指向系統之雜訊抑制方 法第二實施例之流程圖。合併參考第2、5圖，當該光學 指向系統200啟動時直接進入該一般模式，使該第一光指 向器210中之該第一光發射部213所發射之該第一特定數 目光點230不閃動。該光接收器22〇啟動後持續將所有進 入其中該光學感/則器221之光包括該第一特定數目光點 230在内轉換成具有數位影像資訊的一第一指向信號 240 ’並輸出至雜訊抑制器222，當該光接收器220僅捕捉 到該第一特定數目光點230時，則該雜訊抑制器222不發 出任何命令，是以該光學指向系統200仍以一般模式運 作。而當該光接收器220同時捕捉到該第一特定數目光點 230及該第二特定數目光點53〇時，則該光學接收器22〇 對遠端之該第一光指向器210之該第一驅動裝置212、該 第二光指向器510之該第二驅動裝置512分別發出一第一 控制信號250及一第二控制信號55〇 ,使得該第一驅動裝 置212及該第一驅動裴置512分別驅動該第一光發射部 213及該第二光發射部513中至少一者以閃.動模式、或兩 者分別以相異之閃動模式運作。此方法可使該雜訊抑制器 辨識出該第一特定數目光點230及第二特定數目光點 530，達到本發明的又一功能。該第二實施例應用在互動 遊戲之指向器上，即可輕易辨識使用不同光指向器之複數 個玩家。上述該第一控制信號250及該第二控制信號55〇 由該雜訊抑制器222分別傳輸至該第一驅動裝置212及該 第二驅動裝置512同樣可以透過無線傳輪之方式。0944-A41441TWF 201043307 Flow chart of the example. Referring to FIG. 2, when the optical pointing system 2 is activated, the general mode is directly entered, so that the first-specific number of light spots 230 emitted by the first light emitting portion 213 in the first light director 210 is Do not flash. After the light receiver 22 is activated, all the light entering the optical sensor 221 is converted into the first specific number of light spots 230 into a first pointing signal 24〇 having digital image information, and is output to The noise suppressor 222' does not issue any command when the noise suppressor 222 determines that the noise of the background light has not reached the set threshold to recognize the first specific number of spots 230. Thus, the optical pointing system 200 still operates in a normal mode. When the noise suppressor 222 determines that the noise of the background light has exceeded a set threshold, the first driving device 212 of the first optical director 210 of the remote end sends a first control signal 250 ′. The first driving device 212 drives the first light emitting portion 213 to operate in the flashing mode, and the method can make the noise suppressor more easily recognize the first specific number of light spots 230 to achieve suppression of the background light. Miscellaneous 3 of the news. The first control signal is transmitted by the noise suppressor 222 to the first driving device 212. For example, the wireless transmitting wheel can be transmitted. It should be noted that the above embodiment uses the optical receiver 220 as a device for determining background noise. However, those skilled in the art can understand that the action of determining the background noise is not limited to the device. For example, The first optical directional device 210 itself, f, performs the above-described actions. Figure 5 is a schematic diagram of an optical pointing system having a plurality of optical directors. The following embodiment will be described with a rain optical pointer. Those skilled in the art can easily generalize to use multiple optical pointing according to the description. 0944-A41441TWF 9 201043307 The situation at the time of the device. Figure 6 is a flow chart showing a second embodiment of the noise suppression method of the optical pointing system of the present invention. Referring to FIGS. 2 and 5, when the optical pointing system 200 is activated, the general mode is directly entered, so that the first specific number of light spots 230 emitted by the first light emitting portion 213 in the first optical director 210 is Do not flash. After the light receiver 22 is activated, all the light entering the optical sensor 221 is continuously converted into a first pointing signal 240 ′ having digital image information, and is output to the first specific number of light spots 230 The noise suppressor 222, when the light receiver 220 captures only the first specific number of spots 230, the noise suppressor 222 does not issue any command, so that the optical pointing system 200 still operates in the normal mode. When the optical receiver 220 simultaneously captures the first specific number of spots 230 and the second specific number of spots 53, the optical receiver 22 is opposite the first optical director 210 of the remote end. The first driving device 212 and the second driving device 512 of the second optical directional device 510 respectively generate a first control signal 250 and a second control signal 55 〇, such that the first driving device 212 and the first driving device The setting 512 drives at least one of the first light emitting portion 213 and the second light emitting portion 513 to operate in a flash mode or a different flash mode, respectively. The method allows the noise suppressor to recognize the first specific number of spots 230 and the second specific number of spots 530 to achieve yet another function of the present invention. The second embodiment is applied to the pointer of the interactive game, and it is easy to recognize a plurality of players using different light directors. The first control signal 250 and the second control signal 55 are transmitted by the noise suppressor 222 to the first driving device 212 and the second driving device 512, respectively.
0944-A41441TWF 10 201043307 第7圖為本發明光學指向系統之雜訊抑制方法第二實 施例之流程圖。本實施例為上述第一及第二實施例之結 合，而該光學指向系統與上述二實施例雷同，於此不在贅 述。該光學指向系統中抑制雜訊之方法與上述兩實施例差 異之處說明如下。合併參考第2圖，當該光學指向系統200 中之光接收器220同時捕捉了複數個光點且偵測雜訊達一 閾值’則雜訊抑制器222先發出控制訊號使所有的光指向0944-A41441TWF 10 201043307 Fig. 7 is a flow chart showing a second embodiment of the noise suppression method of the optical pointing system of the present invention. This embodiment is a combination of the first and second embodiments described above, and the optical pointing system is the same as the above two embodiments, and will not be described herein. The method of suppressing noise in the optical pointing system is different from the above two embodiments in the following description. Referring to FIG. 2, when the optical receiver 220 in the optical pointing system 200 simultaneously captures a plurality of spots and detects noise up to a threshold value, the noise suppressor 222 first sends a control signal to direct all the light.
器以單一閃動模式發出光點，以濾除所有背景光之雜訊。 再者’當雜訊抑制器222仍捕捉了複數個光點，則發出控 制訊號使該等光指向器分別以相異之閃動模式發出光 點’藉此完成該等光指向器之辨識。 雖然本發明已以較佳實施例揭露於上，然其並非用以 限定本發明’任何熟習此項技藝者，在不脫離本發明 神和範圍内，當可作些許之更動與潤飾，因此本發明作之 保護範圍當視後附之中請專利範圍所界定者為準。 【圖式簡單說明】 第1圖 圖 圖 為光學指向丨統之外觀概略®。 第2圖為本發明之光學指向系統200之線路方塊圖。 第3A圖為本發明之發射部於—般模式下 第㈣為本斷_卩於第-嶋式下1示意 第3C圖為本發明之發射部於第二閃動模式下之示意 第4圖為本發日絲料Μ統之軸抑制方法第一The device emits a spot in a single flash mode to filter out all background noise. Furthermore, when the noise suppressor 222 still captures a plurality of spots, a control signal is issued to cause the light directors to emit light spots in different flash modes, thereby completing the identification of the light directors. Although the present invention has been disclosed in its preferred embodiments, it is not intended to limit the invention to those skilled in the art, and it is possible to make some modifications and refinements without departing from the scope of the invention. The scope of protection of the invention shall be subject to the definition of the scope of the patent. [Simple description of the diagram] Fig. 1 is a schematic view of the appearance of the optical pointing system. 2 is a block diagram of the optical pointing system 200 of the present invention. FIG. 3A is a diagram showing the fourth part of the present invention in the second flashing mode of the transmitting portion of the present invention in the fourth flashing mode of the present invention. The first axis suppression method for the Japanese silk system
0944-Α41441TWF 第一實 201043307 施例之流程圖。 第5圖為具有複數個光指向器的光學指向系統之概要 圖。 第6圖為本發明光學指向系統之雜訊抑制方法第二實 施例之流程圖。 第7圖為本發明光學指向系統之雜訊抑制方法第三實 施例之流程圖。 【主要元件符號說明】 100〜光學指向系統，101〜攝影鏡頭，102〜光指向器， 104〜光點’ 105〜雜訊’ 106〜晝面’ 200〜光學指向系統， 210〜第一光指向器，212〜第一驅動裝置，213〜第一光發 射部，220〜光接收器，221〜光學感測器，222〜雜訊抑制器， 223〜動作追蹤感測器，230〜第一特定數目光點，240〜第一 指向信號，250〜第一控制信號，510〜第二光指向器，512〜 第二驅動裝置，513〜第二光發射部，550〜第二控制信號。 0944-A41441TWF 120944-Α41441TWF First real 201043307 Flow chart of the example. Figure 5 is a schematic diagram of an optical pointing system having a plurality of optical directors. Figure 6 is a flow chart showing a second embodiment of the noise suppression method of the optical pointing system of the present invention. Figure 7 is a flow chart showing a third embodiment of the noise suppression method of the optical pointing system of the present invention. [Main component symbol description] 100~ optical pointing system, 101~ photographic lens, 102~ optical pointing device, 104~ light spot '105~ noise' 106' facet' 200~ optical pointing system, 210~ first light pointing , 212 to first drive device, 213 to first light emitting portion, 220 to light receiver, 221 to optical sensor, 222 to noise suppressor, 223 to motion tracking sensor, 230 to first specific A number of light spots, 240 to first pointing signals, 250 to first control signals, 510 to second light directors, 512 to second driving means, 513 to second light emitting portions, 550 to second control signals. 0944-A41441TWF 12