公开(公告)号：US08798266B2

公开(公告)日：2014-08-05

申请号：US13690471

申请日：2012-11-30

Applicant: Research In Motion Limited

Inventor： Marc A. Drader ,  James Alexander Robinson ,  Michael Lorne Purdy

IPC: H04L9/00 ,  H04L9/08

CPC classification number: H04L9/0861 ,  G09C5/00 ,  G09G2360/145 ,  H04L9/0819 ,  H04L9/0863 ,  H04L9/0894 ,  H04L9/32 ,  H04L63/068 ,  H04L63/0853 ,  H04L2209/805 ,  H04L2463/061

Abstract: A handheld communications device for transmitting an encryption key is provided. The device comprises a display device, and a data processor. The data processor of the handheld communications device is in communication with the display device. The data processor is configured to generate an encryption key, and to vary a visual output of the display device over time in accordance with a bit sequence of the encryption key. The varying visual output comprises a sequence of colors and/or brightness levels output by the display device.

Abstract translation: 提供了一种用于发送加密密钥的手持通信设备。 该装置包括显示装置和数据处理器。 手持通信设备的数据处理器与显示设备通信。 数据处理器被配置为产生加密密钥，并且根据加密密钥的比特序列随时间改变显示设备的视觉输出。 变化的视觉输出包括由显示装置输出的一系列颜色和/或亮度级。

公开(公告)号：US09081569B2

公开(公告)日：2015-07-14

申请号：US13710437

申请日：2012-12-10

Applicant: Research In Motion Limited

Inventor： Cornel Mercea ,  Peter Mankowski ,  James Alexander Robinson ,  Jacek S. Idzik

IPC: G06F3/033 ,  G06F1/32 ,  G06F3/0354

CPC classification number: G06F1/3206 ,  G06F1/3259 ,  G06F1/3262 ,  G06F3/03545 ,  Y02D10/155

Abstract: An active stylus having a control circuit configured to wake up the stylus from a sleep mode to an active mode in response to pressure applied to a tip of the stylus. The stylus includes a force sensor electrically coupled to a power source, an operational amplifier, and a voltage level comparator, the voltage level comparator configured to output a digital wake up interrupt signal when pressure is applied to the tip when the control circuit is in the sleep mode. The operational amplifier is configured to provide an analog signal representative of varying pressure on the tip. This signal is processed by the control circuit such that the stylus goes into the sleep mode after a specified period of time following cessation of variations in the analog signal.

Abstract translation: 一种有源手写笔，其具有控制电路，该控制电路被配置为响应于施加到触针的尖端的压力将触针从睡眠模式唤醒到活动模式。 触控笔包括电耦合到电源的力传感器，运算放大器和电压电平比较器，该电压电平比较器被配置为当控制电路处于该状态时向尖端施加压力时输出数字唤醒中断信号 睡眠模式。 运算放大器被配置为提供代表尖端上的变化压力的模拟信号。 该信号由控制电路处理，使得在停止模拟信号的变化之后指定的时间段后，触针进入睡眠模式。