公开(公告)号：US09128541B2

公开(公告)日：2015-09-08

申请号：US13803548

申请日：2013-03-14

Applicant: Research In Motion Limited

Inventor： Andrew Ashraf Fergusson ,  Cornel Mercea

IPC: G06F3/033 ,  G06F3/0354 ,  G06F3/0338 ,  G06F3/01

CPC classification number: G06F3/03545 ,  G06F1/1694 ,  G06F3/016 ,  G06F3/0338 ,  G06F3/03543 ,  G06F3/0487

Abstract: A stylus has a stylus barrel and a stylus nib that can move with respect to the stylus barrel. A first pressure sensor is configured to sense air pressure that corresponds to force being supplied to the stylus nib and a second pressure sensor serves to sense ambient air pressure. A control circuit operably couples to both pressure sensors and determines a gauge pressure value as corresponds to force being applied to the stylus nib. By one approach a temperature sensor can also operably couple to the control circuit and provide temperature information that the control circuit can utilize when determining the aforementioned gauge pressure value.

Abstract translation: 触针具有可以相对于触针筒移动的触笔筒和触针笔尖。 第一压力传感器构造成感测对应于被提供给触控笔尖的力的空气压力，并且第二压力传感器用于感测周围空气压力。 控制电路可操作地耦合到两个压力传感器，并且根据施加到触控笔尖的力确定表压值。 通过一种方式，温度传感器还可以可操作地耦合到控制电路并提供当确定上述表压值时控制电路可以利用的温度信息。

公开(公告)号：US08978487B2

公开(公告)日：2015-03-17

申请号：US13713278

申请日：2012-12-13

Applicant: Research in Motion Limited

Inventor： Andrew Ashraf Fergusson ,  Iouri Petrovitch Besperstov

IPC: G01L1/00 ,  G06F3/033 ,  G01L1/14 ,  G06F3/0354

CPC classification number: G01L1/144 ,  G06F3/03545 ,  G06F3/044 ,  G06F2203/04105

Abstract: The present disclosure provides a method and apparatus for a capacitive force sensor utilizing a magnetic spring. The force is applied across a body and a moveable element that are coupled by the magnetic spring. The moveable element is configured to vary the capacitance of a variable capacitor. A sensing circuit, electrically coupled to the variable capacitor, provides a force signal characteristic of the applied force. In application to a stylus pointing device, the moveable element is coupled to a moveable tip of the stylus. The force signal, which is characteristic of the force applied to the tip of the stylus, may be used to control an application executed on a host electronic device.

Abstract translation: 本公开提供了一种利用磁性弹簧的电容式力传感器的方法和装置。 力被施加在通过磁性弹簧联接的主体和可移动元件上。 可移动元件被配置为改变可变电容器的电容。 电耦合到可变电容器的感测电路提供施加力的特征的力信号。 在应用于触针指示装置时，可移动元件耦合到触针的可移动尖端。 施加到触针尖端的力的特征的力信号可以用于控制在主机电子设备上执行的应用。

公开(公告)号：US09280214B2

公开(公告)日：2016-03-08

申请号：US13933476

申请日：2013-07-02

Applicant: Research In Motion Limited

Inventor： Cornel Mercea ,  Andrew Ashraf Fergusson ,  Jacek S. Idzik

IPC: G06F3/0346 ,  G06F3/0354

CPC classification number: G06F3/03545 ,  G06F3/0346

Abstract: A handheld device and method of operation for determining motion of the handheld device relative to a stylus is presented, in which the stylus is used to provide a frame of reference for the handheld device rather than as a user input device. Stylus orientation data, descriptive of an absolute orientation of a stylus, and handheld device orientation data, descriptive of an absolute orientation of the handheld device, are used to determine motion of the handheld device relative to the stylus. The handheld device has orientation and/or motion sensors, a communication module operable to receive stylus orientation data, and a processor operable to determine the motion or orientation of the handheld device relative to the stylus and execute an application dependent thereon.

Abstract translation: 呈现了用于确定手持设备相对于触控笔的运动的手持设备和操作方法，其中使用触控笔为手持设备而不是用户输入设备提供参考框架。 用于描述触控笔的绝对定向的触笔取向数据以及描述手持设备的绝对取向的手持设备取向数据被用于确定手持设备相对于触控笔的运动。 手持设备具有定向和/或运动传感器，可操作以接收触笔取向数据的通信模块和可操作以确定手持设备相对于触控笔的运动或取向并执行依赖于其的应用的处理器。