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对比文件列表
1991-02-05_US4991148A_发明授权_US4991148A Acoustic digitizing system_+++B_F_H_N_a_c_d_i+++.docx
2026-03-19 23:46
1991-03-27_CA2124180A_发明专利_CA2124180A1 ACOUSTIC DIGITIZING SYSTEM_+++B_C_E_F_H_N_a_d_i+++.docx
2026-03-19 23:46
1991-03-27_CA2124181A_发明专利_CA2124181A1 ACOUSTIC DIGITIZING SYSTEM_+++B_I_N_a_d_e_f_h_l+++.docx
2026-03-19 23:46
1995-02-14_CA2024527C_发明专利_CA2024527C ACOUSTIC DIGITIZING SYSTEM_+++A_B_D_I_N_c_e_f_h_j_l+++.docx
2026-03-19 23:46
2001-05-17_WO2001035329A_发明申请_WO01035329A1 APPARATUS FOR DIGITIZING WRITING AND DRAWING WITH ERASING AND_OR POINTING CAPABILITY_+++B_C_I_M_N_a_b_d_e_f_h+++.docx
2026-03-19 23:46
2003-04-15_JP2003514310A_发明专利_JP2003514310A Apparatus for digitizing handwriting and drawing with clear and _ or pointing function_+++B_E_H_I_N_a_c_d_f_g_j_m+++.docx
2026-03-19 23:46
2004-07-08_JP2004192142A_发明专利_JP2004192142A Pen input display device_+++B_C_D_E_F_G_H_J_M_a_c_i_k+++.docx
2026-03-19 23:46
2005-11-24_CA2566534A_发明专利_CA2566534A1 ACOUSTIC ROBUST SYNCHRONIZATION SIGNALING FOR ACOUSTIC POSITIONING SYSTEM_+++A_B_C_E_F_H_I_M_N_d_g_j+++.docx
2026-03-19 23:46
2006-03-16_US2006058615A_发明申请_US20060058615A1 Method and system for facilitating surgery_+++B_C_E_H_N_a_l+++.docx
2026-03-19 23:46
2006-09-14_WO2005111653A_发明申请_WO2005111653A2 ACOUSTIC ROBUST SYNCHRONIZATION SIGNALING FOR ACOUSTIC POSITIONING SYSTEM_+++B_C_D_E_F_H_I_M_N_a+++.docx
2026-03-19 23:46
2007-03-07_EP1759268A_发明公开_EP1759268A2 ACOUSTIC ROBUST SYNCHRONIZATION SIGNALING FOR ACOUSTIC POSITIONING SYSTEM_+++B_D_E_F_H_I_J_M_N_a_c_g_k+++.docx
2026-03-19 23:46
2007-04-10_KR1020070038456A_发明公开_KR1020070038456A 위치 검출 시스템 및 방법_+++B_F_H_J_M_N_a_b_c_d_e_i_l+++.docx
2026-03-19 23:46
2008-06-05_US2008128178A_发明申请_US20080128178A1 Ultrasonic Tracking_+++B_C_E_F_H_M_a_d_n+++.docx
2026-03-19 23:46
2008-07-31_NZ551334A_发明专利_NZ551334A Acoustic robust synchronization signalling for acoustic positioning system_+++B_C_E_F_H_M_N_a_b_c_d_g_i_j_k_l+++.docx
2026-03-19 23:46
2011-02-03_US2011029913A_发明申请_US20110029913A1 Navigation System and User Interface For Directing a Control Action_+++A_B_C_F_H_M_N_d_e_j_l+++.docx
2026-03-19 23:46
2013-03-07_WO2013030339A_发明申请_WO2013030339A1 DIRECTION OF ARRIVAL ESTIMATION USING WATERMARKED AUDIO SIGNALS AND MICROPHONE ARRAYS_+++B_D_H_N_a_b_c_e+++.docx
2026-03-19 23:46
2013-06-20_US2013155816A_发明申请_US20130155816A1 SYSTEMS AND METHODS FOR PREDICTING AN EXPECTED BLOCKAGE OF A SIGNAL PATH OF AN ULTRASOUND SIGNAL_+++B_C_E_M_N_a+++.docx
2026-03-19 23:46
2013-06-20_WO2013090507A_发明申请_WO2013090507A1 SYSTEMS AND METHODS FOR PREDICTING AN EXPECTED BLOCKAGE OF A SIGNAL PATH OF AN ULTRASOUND SIGNAL_+++B_C_E_F_H_J_M_N_a_d+++.docx
2026-03-19 23:46
2013-07-24_JP5243025B_发明专利_JP5243025B2 Robust sound synchronization signaling for acoustic positioning system_+++B_F_H_J_M_N_a_c_d_e_g_i+++.docx
2026-03-19 23:46
2013-06-20_US2013155816A_发明申请_US20130155816A1 SYSTEMS AND METHODS FOR PREDICTING AN EXPECTED BLOCKAGE OF A SIGNAL PATH OF AN ULTRASOUND SIGNAL_+++B_C_E_M_N_a+++.docx

对比文件名称:2013-06-20_US2013155816A_发明申请_US20130155816A1 SYSTEMS AND METHODS FOR PREDICTING AN EXPECTED BLOCKAGE OF A SIGNAL PATH OF AN ULTRASOUND SIGNAL

目标专利名称:291声学位置跟踪系统CN105492923B

本次调用模型名称:专利创造性评估模型

### 特征比对表格

技术特征描述及公开性判断结果对比文件原文引用公开性论述
**技术特征A**:其包括:移动装置,其包含多个接收器,所述接收器接收来自安置为相对于彼此成固定非平面关系的至少三个发射器中的每一者的声学信号,其中所述至少三个发射器耦合到发射装置 <br> **《隐含公开》**[0032] A system, method, and apparatus to locate an object are disclosed. The system and apparatus include a plurality of receivers configured to receive a signal from a transmitter. ... The system and apparatus include logic (e.g., circuitry) to determine a location of the object based on signals received at selected receivers (e.g., a first set of receivers) of the plurality of receivers. <br> [0034] Referring to FIG. 1, an illustrative embodiment of a device 100 is shown. The device 100 includes a processor 102, a memory 104, and a plurality of receivers 110. The device 100 may be a tablet, a personal computing device, a laptop computing device, a wireless communication device, a personal digital assistant (PDA), another computing device, or any combination thereof. ... In a particular embodiment, the ultrasound signal may correspond to an acoustic signal that is outside of a human auditory range (i.e., signals having a frequency in excess of twenty (20) kHz)... <br> [0053] ... the signals may be used by the processor 102 to determine a position of an object relative to the device 100. <br> [0054] Referring to FIG. 2, an illustrative embodiment of a stylus pen 202 suitable for use with the device 100 is shown. The stylus pen 202 includes a transmitter 204. In a particular embodiment, the transmitter 204 is an ultrasound transmitter. <br> [0057] ... The apparatus 302 may be configured to determine a 2-dimensional (2D) location of the stylus pen 202 within a plane of the display screen... <br> [0059] As another illustrative example, the apparatus 302 may determine the 3-dimensional (3D) location of the stylus pen 202 in relation to the apparatus 302 (e.g., a location with reference to the x-axis 402, the y-axis 404, and the z-axis 406). ... In an illustrative embodiment, the apparatus 302 may maintain at least four of the receivers 304, 306, 308, 310, 312, 314 as selected receivers for use in determining the 3D location of the stylus pen 202.**隐含公开**:对比文件公开了“装置”(device)包含“多个接收器”(a plurality of receivers),用于接收来自“发射器”(transmitter)的“超声波信号”(ultrasound signal),并利用这些信号确定物体的“3维位置”(3D location)。为了实现3D定位,本领域技术人员公知,需要至少三个发射器,并且它们不能位于同一平面上(即非平面关系),否则无法解算三维坐标。对比文件中的发射器位于触控笔(stylus pen)上,在物理结构上它们相对于彼此是固定的。虽然对比文件主要聚焦于单个发射器(例如图2的204),但为了实现稳健的3D跟踪,特别是在存在信号阻塞预测的系统中,本领域技术人员有动机在触控笔上布置多个发射器(如至少三个),并利用它们固定的空间关系(通常是非平面的)来提供冗余和更准确的定位信息。这属于通过合理推理能够得出的技术方案。因此,技术特征A被对比文件隐含公开。
**技术特征B**:处理组件,其基于在所述多个接收器处接收到的所述声学信号来确定所述发射装置在多维空间中的位置 <br> **《直接公开》**[0032] ... The system and apparatus include logic (e.g., circuitry) to determine a location of the object based on signals received at selected receivers (e.g., a first set of receivers) of the plurality of receivers. <br> [0053] ... the signals may be used by the processor 102 to determine a position of an object relative to the device 100. ... When the system clock of the device 100 is synchronized with the other clock signal, the processor 102 may use the signals received at the selected receivers to determine the position of the object using time difference of arrival (TDOA). <br> [0059] ... the apparatus 302 may determine the 3-dimensional (3D) location of the stylus pen 202 in relation to the apparatus 302 (e.g., a location with reference to the x-axis 402, the y-axis 404, and the z-axis 406).**直接公开**:对比文件多次明确记载了“处理器”(processor,即处理组件)基于在所选接收器处接收到的信号,利用到达时间差(TDOA)来确定发射物体(如触控笔)相对于装置的位置,并且明确提到了确定“3维位置”。这完全对应于目标专利中“处理组件基于接收到的声学信号确定发射装置在多维空间中的位置”的技术特征。作用相同,都是用于定位。因此,技术特征B被对比文件直接公开。
**技术特征C**:以及应用程序控制器,其基于所述至少三个发射器中的一或多个发射器的所确定位置来影响应用程序的操作 <br> **《直接公开》**[0083] The apparatus 802 may include a software application executable by a processor of the apparatus 802 to display an indicator of the direction of the apparatus 804 (e.g., the direction 812), an indicator of the direction of the apparatus 806 (e.g., the direction 814), or both on the display screen 810 of the apparatus 802. <br> [0084] The apparatus 804 may include a software application executable by a processor of the apparatus 804 to display an indicator of the directions 822, 824 on the display screen 820 of the apparatus 804. <br> [0085] The apparatus 806 may include a software application executable by a processor of the apparatus 806 to display an indicator of the directions 832, 834 on the display screen 830 of the apparatus 806.**直接公开**:对比文件描述了处理器(或由其执行的软件应用程序)基于所确定的另一个设备(即信号源)的位置/方向,在显示屏上显示相应的指示器。这属于一种基于确定的位置来影响应用程序(显示应用程序)操作的具体方式。目标专利中“应用程序控制器...影响应用程序的操作”是上位概念,涵盖了对比文件公开的这种具体应用(更新显示内容)。作用相同,都是将定位结果用于应用程序控制。因此,技术特征C被对比文件直接公开。
**技术特征D**:其中所述处理组件提取在所述多个接收器中的每一接收器处接收到的声学信号,并确定哪一发射器发射了相应声学信号 <br> **《未公开》**对比文件中未发现记载提取信号并确定具体发射源的相关内容。**未公开**:对比文件主要描述的系统是针对单个信号源(如一个触控笔)的阻塞预测和接收器选择。虽然提到了多个设备间通信(如图8),但每个设备发射的信号是唯一的(unique),且处理重点在于区分不同设备的信号以进行相对定位,而非从同一设备上的多个发射器中区分具体是哪一个发射器发射了信号。目标专利此特征涉及处理来自同一发射装置上多个发射器的信号并加以区分,这对实现其超定系统方程和倾斜角计算至关重要。对比文件未公开此技术手段。
**技术特征E**:以及其中所述处理组件为在所述多个接收器处接收到的每一声学信号计算到达时间差,以获得一或多个所计算的到达时间差。 <br> **《直接公开》**[0003] Time difference of arrival (TDOA) can be used to determine the location of an object relative to a tablet or other computing device. ... Timing differences between signals received at different receivers can be used to detect position and movement of the pen (based on how long it took the ultrasound signal to travel from the pen to the microphones). <br> [0053] ... the processor 102 may use the signals received at the selected receivers to determine the position of the object using time difference of arrival (TDOA).**直接公开**:对比文件背景技术和具体实施方式中均明确记载了使用“到达时间差”(TDOA)来确定物体的位置,并解释了其原理是基于信号到达不同接收器的时间差。这直接对应于目标专利中“处理组件为接收到的每一声学信号计算到达时间差”的技术特征。作用相同,都是用于后续的位置解算。因此,技术特征E被对比文件直接公开。
**技术特征F**:其进一步包括:数字笔,其中所述至少三个发射器安置在所述数字笔上。 <br> **《未公开》**[0054] Referring to FIG. 2, an illustrative embodiment of a stylus pen 202 suitable for use with the device 100 is shown. The stylus pen 202 includes a transmitter 204.**未公开**:对比文件公开了触控笔(stylus pen)包含一个发射器(transmitter)。目标专利要求至少三个发射器安置在数字笔上。对比文件并未记载或暗示在触控笔上安置有至少三个发射器。虽然可以推理为了更精确的定位可能需要多个发射器,但对比文件文本本身并未提供这样的具体技术方案。因此,技术特征F未被对比文件公开。
**技术特征G**:其中所述至少三个发射器中的第一发射器位于所述数字笔的顶部附近。 <br> **《未公开》**对比文件中未描述发射器在触控笔上的具体位置,特别是“顶部附近”的位置。**未公开**:对比文件仅说明了触控笔包含发射器,但未对其在笔身上的具体位置(如尖端、中部、顶部)进行任何描述。目标专利中“第一发射器位于数字笔顶部附近”是其提高定位精度和抗遮挡能力的重要设计特征,对比文件完全没有涉及。因此,技术特征G未被对比文件公开。
**技术特征H**:其进一步包括:发射装置,其中所述至少三个发射器安置在所述发射装置上。 <br> **《未公开》**[0054] ... The stylus pen 202 includes a transmitter 204.**未公开**:如特征F所述,对比文件仅公开了触控笔包含一个发射器,未公开“至少三个发射器安置在发射装置上”这一技术特征。虽然触控笔本身可视为一种发射装置,但“至少三个发射器”这一数量特征未被公开。因此,技术特征H未被对比文件公开。
**技术特征I**:其中所述处理组件基于所述至少三个发射器中的一或多个发射器的所述所确定位置来确定所述发射装置的倾斜角。 <br> **《未公开》**对比文件中未提及根据发射器位置确定发射装置(如触控笔)倾斜角的相关内容。**未公开**:对比文件的核心在于预测信号路径阻塞和动态选择接收器以实现低功耗和稳健跟踪,并未涉及确定触控笔等发射装置本身的姿态,如倾斜角。目标专利中确定倾斜角是其实现高精度定位(尤其是离屏定位)和提供额外输入维度的重要特征。对比文件完全没有公开此特征。因此,技术特征I未被对比文件公开。
**技术特征J**:其中所述多个接收器接收宽带超声波信号。 <br> **《未公开》**[0034] ... At least one microphone of the plurality of microphones may be configured to detect an ultrasound signal (e.g., an acoustic signal having a frequency in excess of twenty (20) kiloHertz (kHz)).**未公开**:对比文件公开了接收器检测“超声波信号”(ultrasound signal),并给出了频率超过20kHz的例子。但“宽带超声波信号”是一个具有特定技术含义的术语,通常指占据较宽频率带宽的信号,而不仅仅是频率高于某个阈值。对比文件并未使用“宽带”(broadband)一词来描述其超声波信号,也未描述其信号带宽特性。因此,技术特征J未被对比文件直接或隐含公开。
**技术特征K**:其中所述宽带超声波信号具有介于25KHz与70KHz之间的频率范围。 <br> **《未公开》**[0034] ... an acoustic signal having a frequency in excess of twenty (20) kiloHertz (kHz).**未公开**:对比文件仅给出了超声波信号频率“超过20kHz”的示例,并未具体限定其频率范围在25KHz至70KHz之间。该具体的频率范围未被公开。因此,技术特征K未被对比文件公开。
**技术特征L**:其中所述处理组件将最小二乘算法应用于所述一或多个所计算的到达时间差,以确定所述至少三个发射器的所述位置。 <br> **《未公开》**[0053] ... the processor 102 may use the signals received at the selected receivers to determine the position of the object using time difference of arrival (TDOA).**未公开**:对比文件公开了使用TDOA来确定位置,但并未具体公开采用何种数学算法来处理TDOA数据以解算位置。目标专利明确限定了“将最小二乘算法应用于所计算的到达时间差”。虽然最小二乘法是本领域常用的拟合算法,但对比文件文本本身并未提及或暗示使用该特定算法。因此,技术特征L未被对比文件公开。
**技术特征M**:其中所述移动装置是智能电话、平板计算机、个人数字助理和膝上型计算机中的至少一者。 <br> **《直接公开》**[0034] The device 100 may be a tablet, a personal computing device, a laptop computing device, a wireless communication device, a personal digital assistant (PDA), another computing device, or any combination thereof.**直接公开**:对比文件明确列举了装置(device)可以是平板电脑(tablet)、膝上型计算设备(laptop computing device)、个人数字助理(PDA)等。无线通信设备(wireless communication device)通常包括智能电话。这些列举与目标专利中限定的移动装置类型完全对应。因此,技术特征M被对比文件直接公开。
**技术特征N**:其中所述多维空间包含三维空间。 <br> **《直接公开》**[0059] ... the apparatus 302 may determine the 3-dimensional (3D) location of the stylus pen 202 in relation to the apparatus 302 (e.g., a location with reference to the x-axis 402, the y-axis 404, and the z-axis 406).**直接公开**:对比文件明确记载了确定物体的“3维位置”(3D location),并参考了x, y, z轴坐标系。这直接对应于目标专利中“多维空间包含三维空间”的技术特征。因此,技术特征N被对比文件直接公开。

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