公开(公告)号：US06995747B2

公开(公告)日：2006-02-07

申请号：US10981617

申请日：2004-11-05

申请人： Mark W. Casebolt ,  Gino S. Garcia

发明人： Mark W. Casebolt ,  Gino S. Garcia

IPC分类号： G09G5/08

CPC分类号： G06F1/3203 ,  G06F1/3231 ,  G06F1/3259 ,  G06F3/0317 ,  Y02D10/155 ,  Y02D10/173

摘要： Capacitive proximity sensing is carried out by detecting a relative change in the capacitance of a “scoop” capacitor formed by a conductor and a surrounding ground plane. The conductor may be a plate provided in the form of an adhesive label printed with conductive ink. Charge is transferred between the “scoop” capacitor and a relatively large “bucket” capacitor, and a voltage of the bucket capacitor is applied to an input threshold switch. A state transition (e.g., from low to high, or high to low) of the input threshold switch is detected and a value (TouchVal) indicative of a number of cycles of charge transfer required to reach the state transition is determined. The presence or absence of an object or body portion in close proximity to or contact with a device can be determined by comparing TouchVal with a predetermined threshold value (TouchOff). TouchOff can be adjusted to take into account environmentally induced (non-touch related) changes in the capacitance of the scoop capacitor. Power management is provided in a user operated data input device utilizing proximity sensing and switching between three or more power states. Switching between the power states occurs based upon the presence or absence of input activity, and an operation instrumentality (e.g., a hand) in close proximity to or contact with the device. In an optical surface tracking cursor control device embodiment, switching to and from a BEACON state, which provides a reduced flash rate of a surface illuminating light source, is carried out based upon a detected presence or absence of a trackable surface.

公开(公告)号：US06850229B2

公开(公告)日：2005-02-01

申请号：US09991667

申请日：2001-11-26

申请人： Mark W. Casebolt ,  Gino S. Garcia

发明人： Mark W. Casebolt ,  Gino S. Garcia

IPC分类号： G03F7/004 ,  G03F7/038 ,  G06F1/32 ,  G06F3/03 ,  G06F3/033 ,  G06F3/038 ,  G06F3/042 ,  H01H36/00 ,  G09G5/08

CPC分类号： G06F1/3203 ,  G06F1/3231 ,  G06F1/3259 ,  G06F3/0317 ,  Y02D10/155 ,  Y02D10/173

摘要： Capacitive proximity sensing is carried out by detecting a relative change in the capacitance of a “scoop” capacitor formed by a conductor and a surrounding ground plane. The conductor may be a plate provided in the form of an adhesive label printed with conductive ink. Charge is transferred between the “scoop” capacitor and a relatively large “bucket” capacitor, and a voltage of the bucket capacitor is applied to an input threshold switch. A state transition (e.g., from low to high, or high to low) of the input threshold switch is detected and a value (TouchVal) indicative of a number of cycles of charge transfer required to reach the state transition is determined. The presence or absence of an object or body portion in close proximity to or contact with a device can be determined by comparing TouchVal with a predetermined threshold value (TouchOff). TouchOff can be adjusted to take into account environmentally induced (non-touch related) changes in the capacitance of the scoop capacitor. Power management is provided in a user operated data input device utilizing proximity sensing and switching between three or more power states. Switching between the power states occurs based upon the presence or absence of input activity, and an operation instrumentality (e.g., a hand) in close proximity to or contact with the device. In an optical surface tracking cursor control device embodiment, switching to and from a BEACON state, which provides a reduced flash rate of a surface illuminating light source, is carried out based upon a detected presence or absence of a trackable surface.

公开(公告)号：US07124312B2

公开(公告)日：2006-10-17

申请号：US11169739

申请日：2005-06-30

申请人： Mark W. Casebolt ,  Gary S. Rensberger ,  Steven N. Bathiche ,  Mihai Albulet

发明人： Mark W. Casebolt ,  Gary S. Rensberger ,  Steven N. Bathiche ,  Mihai Albulet

IPC分类号： G06F1/32

CPC分类号： G06F3/03543 ,  G06F1/3203 ,  G06F1/3231 ,  Y02D10/173

摘要： Capacitive proximity sensing is carried out by detecting a relative change in the capacitance of a “scoop” capacitor formed by a conductor and a surrounding ground plane. Charge is transferred between the “scoop” capacitor and a relatively large “bucket” capacitor, and a voltage of the bucket capacitor is applied to an input threshold switch. A state transition (e.g., from low to high, or high to low) of the input threshold switch is detected and a value (TouchVal) indicative of a number of cycles of charge transfer required to reach the state transition is determined. The presence or absence of an object or body portion in close proximity to or contact with a device can be determined by comparing TouchVal with a predetermined threshold value (TouchOff). In order to lessen the time required for detection, and/or improve the sensitivity thereof, the bucket capacitor may initially be charged to a repeatable non-zero reference level closer to the charge level that will cause a state transition. TouchOff can be adjusted to take into account environmentally induced (non-touch related) changes in the capacitance of the scoop capacitor. Power management may be provided in a user operated data input device utilizing the inventive proximity sensing.

摘要翻译： 通过检测由导体和周围地平面形成的“勺”电容器的电容的相对变化来进行电容接近感测。 在“勺”电容器和相对较大的“桶”电容器之间传送电荷，并且将桶式电容器的电压施加到输入阈值开关。 检测输入阈值开关的状态转换（例如，从低到高或高到低），并且确定指示达到状态转换所需的电荷转移周期数的值（TouchVal）。 可以通过将TouchVal与预定阈值（TouchOff）进行比较来确定与设备紧密接触或接触的物体或身体部分的存在或不存在。 为了减少检测所需的时间和/或提高其灵敏度，桶式电容器可以最初被充电到更接近导致状态转换的充电电平的可重复非零参考电平。 可以调整TouchOff以考虑到勺式电容器的电容的环境诱导（非触摸相关）变化。 可以在利用本发明的接近感测的用户操作的数据输入装置中提供电源管理。

公开(公告)号：US07113087B1

公开(公告)日：2006-09-26

申请号：US10408125

申请日：2003-04-08

申请人： Mark W. Casebolt ,  Craig S. Ranta

发明人： Mark W. Casebolt ,  Craig S. Ranta

IPC分类号： G08B1/08

CPC分类号： G06F1/3203 ,  G01V3/101 ,  G06F1/3215 ,  G06F1/3231 ,  G06F1/3259 ,  G06F3/03543 ,  Y02D10/155 ,  Y02D10/173

摘要： Proximity of a user body part can be detected by measuring the effects such proximity has on antenna impedance mismatches. The amount of mismatch affects the amount of RF signal energy reflected back into a transmission line connecting the antenna to a RF signal source. A directional coupler has a main line electrically connected to the transmission line, as well as a coupled line. The directional coupler produces a signal on its coupled line in relation to the magnitude of reflected energy on the transmission line; the amount of reflected energy varies in response to how well the antenna impedance matches the transmission line impedance. A signal detector is electrically connected to the coupled line, and responds to signals produced in the coupled line by the main line. The signal detector output is then used to determine whether a body part is in proximity. Other aspects the invention include an adaptive algorithm to adjust a threshold for proximity determination.

摘要翻译： 可以通过测量接近度对天线阻抗不匹配的影响来检测用户身体部位的接近度。 失配量影响反射回连接到RF信号源的传输线的RF信号能量的数量。 定向耦合器具有电连接到传输线的主线以及耦合线。 定向耦合器在其耦合线上相对于传输线上的反射能量的大小产生信号; 反射能量的量随着天线阻抗与传输线阻抗的匹配而变化。 信号检测器电连接到耦合线路，并且通过主线响应在耦合线路中产生的信号。 然后使用信号检测器输出来确定身体部位是否接近。 本发明的其它方面包括调整用于接近度确定的阈值的自适应算法。

公开(公告)号：US06933922B2

公开(公告)日：2005-08-23

申请号：US10753343

申请日：2004-01-09

申请人： Mark W. Casebolt ,  Mark R. Lee

发明人： Mark W. Casebolt ,  Mark R. Lee

IPC分类号： G06F1/32 ,  G06F3/033 ,  G06M7/00 ,  G09G5/08 ,  H01J40/14 ,  H04Q7/20

CPC分类号： G06F3/03543 ,  G06F1/3203 ,  G06F1/3231 ,  G06F1/3259 ,  H03K2217/94026 ,  Y02D10/155 ,  Y02D10/173

摘要： A proximity sensor measures receptor output with an energy source deactivated. The sensor then measures receptor output with the energy source activated. The measurements with the energy source activated are compared to the measurements with the energy source deactivated to compensate for the effect of ambient conditions. A near condition is recognized if the change between the two groups of measurements exceeds a designated value. To compensate for receptor output that may decrease after reaching a peak value during approach of an object, a near condition can be maintained until the change between the two groups of measurements no longer exceeds a different designated value. Multiple sensors can be used to avoid false near conditions caused by, e.g., placing a device equipped with the sensors next to a stationary object. In one embodiment, a sensor comprises an infrared light emitting diode and a phototransistor.

摘要翻译： 接近传感器在能量源失效的情况下测量受体输出。 然后传感器在激活能量源的情况下测量受体输出。 将激活的能量源的测量与能量源的测量值进行比较，以消除环境条件的影响。 如果两组测量之间的变化超过指定值，则识别近似条件。 为了补偿在物体接近期间达到峰值之后可能减小的受体输出，可以保持接近的状态，直到两组测量值之间的变化不再超过不同的指定值。 可以使用多个传感器来避免由例如将装备有传感器的设备放置在固定物体旁边而导致的假个近的条件。 在一个实施例中，传感器包括红外发光二极管和光电晶体管。

公开(公告)号：US06611921B2

公开(公告)日：2003-08-26

申请号：US09991656

申请日：2001-11-26

申请人： Mark W. Casebolt ,  Gary Rensberger ,  Steven N. Bathiche ,  Sean Gorman

发明人： Mark W. Casebolt ,  Gary Rensberger ,  Steven N. Bathiche ,  Sean Gorman

IPC分类号： G06F126

CPC分类号： G06F1/3203 ,  G06F1/3231 ,  G06F1/3259 ,  G06F3/0317 ,  Y02D10/155 ,  Y02D10/173

摘要： Power management is provided in a user operated data input device utilizing proximity sensing and switching between three or more power states. Capacitive proximity sensing may be carried out by detecting a relative change in the capacitance of a “scoop” capacitor formed by a conductor and a surrounding ground plane, wherein charge is transferred between the “scoop” capacitor and a relatively large “bucket” capacitor, a voltage of the bucket capacitor is applied to an input threshold switch, and a number of cycles of charge transfer required to reach the state transition is determined. Switching between the power states occurs based upon the presence or absence of input activity, and an operation instrumentality (e.g., a hand) in close proximity to or contact with the device. In an optical surface tracking cursor control device embodiment, switching to and from a BEACON state, which provides a reduced flash rate of a surface illuminating light source, is carried out based upon a detected presence or absence of a trackable surface.

摘要翻译： 在用户操作的数据输入设备中提供电源管理，利用接近感测和三个或多个功率状态之间的切换。 可以通过检测由导体和周围的接地平面形成的“勺”电容器的电容的相对变化来进行电容接近感测，其中电荷在“勺”电容器和相对较大的“桶”电容器之间传递， 铲斗电容器的电压被施加到输入阈值开关，并且确定达到状态转换所需的电荷转移的次数。 基于输入活动的存在或不存在以及与设备紧密接触或接触的操作手段（例如，手），在功率状态之间进行切换。 在光学表面跟踪光标控制装置实施例中，基于检测到的可跟踪表面的存在或不存在，执行提供表面照明光源的降低的闪光速率的BEACON状态切换和切换。

公开(公告)号：US20120124247A1

公开(公告)日：2012-05-17

申请号：US13339950

申请日：2011-12-29

申请人： Mark T. Hanson ,  Nathan C. Sherman ,  Lord Nigel Featherston ,  Mark W. Casebolt ,  Victor P. Drake ,  Keith Mullins ,  David L. Holo ,  Terry M. Lipscomb

发明人： Mark T. Hanson ,  Nathan C. Sherman ,  Lord Nigel Featherston ,  Mark W. Casebolt ,  Victor P. Drake ,  Keith Mullins ,  David L. Holo ,  Terry M. Lipscomb

IPC分类号： G06F3/00

CPC分类号： G06F13/4068 ,  G06F13/4086

摘要： A peripheral device is connectable to a computer having one of a first interface and a second interface. The first interface communicates with the peripheral device over a differential data connection having a first data conductor and a second data conductor. The second interface communicates with the peripheral device over a clock conductor and a single ended data connection which includes a data conductor. The peripheral device has first and second communication conductors. The peripheral device includes an interface detection component coupled to the first and second communication conductors and configured to detect which of the first and second interfaces the peripheral device is connected to.

摘要翻译： 外围设备可连接到具有第一接口和第二接口之一的计算机。 第一接口通过具有第一数据导体和第二数据导体的差分数据连接与外围设备进行通信。 第二接口通过时钟导体和包括数据导体的单端数据连接与外围设备进行通信。 外围设备具有第一和第二通信导体。 外围设备包括耦合到第一和第二通信导体并被配置为检测外围设备连接到的第一和第二接口中的哪一个的接口检测组件。

公开(公告)号：US07629961B2

公开(公告)日：2009-12-08

申请号：US10788444

申请日：2004-03-01

申请人： Mark W. Casebolt ,  Mark R. Lee ,  Jeremiah M. Pope ,  James C. Marshall

发明人： Mark W. Casebolt ,  Mark R. Lee ,  Jeremiah M. Pope ,  James C. Marshall

IPC分类号： G09G5/08

CPC分类号： G06F3/0383 ,  G06F3/0317

摘要： A computer input device controller dynamically adjusts the rate at which an illumination source is activated, and may also adjust the rate at which other optical tracking system components are activated. As the velocity of optical tracking system movement relative to a tracked surface increases, the controller increases the activation rate(s). As the velocity of relative movement decreases, the controller decreases the activation rate(s). Future displacements of a tracking system relative to a tracked surface are also estimated. In particular, relative tracking system/tracked surface velocity is calculated based on a series of images. Relative displacement is then estimated based on the calculated velocity.

摘要翻译： 计算机输入设备控制器动态地调节照明源被激活的速率，并且还可以调整激活其他光学跟踪系统组件的速率。 随着光学跟踪系统相对于跟踪表面移动的速度增加，控制器增加激活速率。 随着相对运动速度的降低，控制器降低了激活速率。 还估计跟踪系统相对于被跟踪表面的未来位移。 特别地，基于一系列图像来计算相对跟踪系统/跟踪表面速度。 然后基于计算的速度来估计相对位移。

公开(公告)号：US07479944B2

公开(公告)日：2009-01-20

申请号：US11055658

申请日：2005-02-11

申请人： Mark W. Casebolt ,  Mark R. Lee

发明人： Mark W. Casebolt ,  Mark R. Lee

IPC分类号： G09G5/08

CPC分类号： G06F3/03543 ,  G06F1/3203 ,  G06F1/3231 ,  G06F1/3259 ,  H03K2217/94026 ,  Y02D10/155 ,  Y02D10/173

摘要： A proximity sensor measures receptor output with an energy source deactivated. The sensor then measures receptor output with the energy source activated. The measurements with the energy source activated are compared to the measurements with the energy source deactivated to compensate for the effect of ambient conditions. A near condition is recognized if the change between the two groups of measurements exceeds a designated value. To compensate for receptor output that may decrease after reaching a peak value during approach of an object, a near condition can be maintained until the change between the two groups of measurements no longer exceeds a different designated value. Multiple sensors can be used to avoid false near conditions caused by, e.g., placing a device equipped with the sensors next to a stationary object. In one embodiment, a sensor comprises an infrared light emitting diode and a phototransistor.

摘要翻译： 接近传感器在能量源失效的情况下测量受体输出。 然后传感器在激活能量源的情况下测量受体输出。 将激活的能量源的测量与能量源的测量值进行比较，以消除环境条件的影响。 如果两组测量之间的变化超过指定值，则识别近似条件。 为了补偿在物体接近期间达到峰值之后可能减小的受体输出，可以保持接近的状态，直到两组测量值之间的变化不再超过不同的指定值。 可以使用多个传感器来避免由例如将装备有传感器的设备放置在固定物体旁边而导致的假个近的条件。 在一个实施例中，传感器包括红外发光二极管和光电晶体管。

公开(公告)号：US06703599B1

公开(公告)日：2004-03-09

申请号：US10058384

申请日：2002-01-30

申请人： Mark W. Casebolt ,  Mark R. Lee

发明人： Mark W. Casebolt ,  Mark R. Lee

IPC分类号： H01J4014

CPC分类号： G06F3/03543 ,  G06F1/3203 ,  G06F1/3231 ,  G06F1/3259 ,  H03K2217/94026 ,  Y02D10/155 ,  Y02D10/173

摘要： A proximity sensor measures receptor output with an energy source deactivated. The sensor then measures receptor output with the energy source activated. The measurements with the energy source activated are compared to the measurements with the energy source deactivated to compensate for the effect of ambient conditions. A near condition is recognized if the change between the two groups of measurements exceeds a designated value. To compensate for receptor output that may decrease after reaching a peak value during approach of an object, a near condition can be maintained until the change between the two groups of measurements no longer exceeds a different designated value. Multiple sensors can be used to avoid false near conditions caused by, e.g., placing a device equipped with the sensors next to a stationary object. In one embodiment, a sensor comprises an infrared light emitting diode and a phototransistor.