公开(公告)号：EP2082488B1

公开(公告)日：2013-02-27

申请号：EP07864556.1

申请日：2007-11-16

Applicant: QUALCOMM Incorporated

Inventor： EKBAL, Amal ,  LEE, Chong U. ,  JULIAN, David Jonathan

IPC: H04B1/69

CPC classification number: H04B1/71632 ,  H04B2201/71636

公开(公告)号：EP2277344A1

公开(公告)日：2011-01-26

申请号：EP08769459.2

申请日：2008-05-12

Applicant: QUALCOMM Incorporated

Inventor： JIA, Zhanfeng ,  JULIAN, David, Jonathan ,  LEE, Chong U.

IPC: H04W52/02

CPC classification number: H04W52/04 ,  H04B1/1615 ,  H04W48/16 ,  H04W52/0274 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/23 ,  Y02D70/26 ,  Y02D70/40

Abstract: A duty cycle scheme for wireless communication employs three or more duty cycle levels. In some aspects, a wireless device may continually scan for signals in an active state associated with a first duty cycle, periodically scan for signals during a periodic state associated with a second duty cycle, and periodically scan for signals during a standby state associated with a third duty cycle. Here, the second duty cycle may be lower than the first duty cycle and the third duty cycle may be lower than the second duty cycle. In some aspects the timing of different states may be correlated. In some aspects each wireless device in a system may independently control its duty cycle states.

公开(公告)号：EP2191571A1

公开(公告)日：2010-06-02

申请号：EP07814980.4

申请日：2007-09-24

Applicant: QUALCOMM Incorporated

Inventor： LEE, Chong U. ,  JULIAN, David Jonathan ,  EKBAL, Amal ,  MONAT, Pavel ,  XIONG, Wei

IPC: H03L7/00

CPC classification number: H03L7/081 ,  H03K7/06 ,  H03L7/00 ,  H03L7/099

Abstract: Frequency of an oscillating signal is temporarily adjusted to adjust frequency and/or phase of an output signal. For example, the frequency of the oscillating signal may be adjusted for a very short period of time to adjust the phase of the output signal. In addition, the frequency of the oscillating signal may be temporarily adjusted in a repeated manner to adjust the effective frequency of the output signal. In some aspects the frequency of the oscillating signal is adjusted by reconfiguration of reactive circuits associated with an oscillator circuit.

公开(公告)号：EP2082487A2

公开(公告)日：2009-07-29

申请号：EP07864275.8

申请日：2007-11-12

Applicant: QUALCOMM Incorporated

Inventor： EKBAL, Amal ,  LEE, Chong U. ,  JULIAN, David Jonathan

IPC: H04B1/69

CPC classification number: H04B1/7176

Abstract: A signaling scheme employs transmitted reference pulses having varying phase. The phase of the reference pulses may be varied in a random manner or in accordance with a data stream. In some aspects a transmitter modulates the phase of the reference pulses to encode an additional data stream in a transmitted reference signal. In some aspects these techniques are employed in a heterogeneous network including coherent and non-coherent receivers. In some aspects these techniques may be employed in an ultra-wide band system.

公开(公告)号：EP2057752A2

公开(公告)日：2009-05-13

申请号：EP07761402.2

申请日：2007-04-26

Applicant: Qualcomm Incorporated

Inventor： LEE, Chong U. ,  EKBAL, Amal ,  JULIAN, David Jonathan

IPC: H04B1/69 ,  H04B1/16

CPC classification number: H04B1/7174 ,  H04B1/71632 ,  H04R25/554 ,  H04R25/558 ,  H04R27/00 ,  H04R2225/33 ,  H04R2225/55 ,  H04R2227/003 ,  H04R2420/07

Abstract: Low power wireless communication techniques may be employed in devices that communicate via a wireless body area network, a wireless personal area network, or some other type of wireless communication link. In some implementations the devices may communicate via one or more impulse-based ultra-wideband channels. Inter-pulse duty cycling may be employed to reduce the power consumption of a device. Power may be provided for the transmissions and receptions of pulses by charging and discharging a capacitive element according to the inter-pulse duty cycling. Sub-packet data may be transmitted and received via a common frequency band. A cell phone may multicast to two or more peripherals via wireless communication links.

Abstract translation: 低功率无线通信技术可以用于经由无线体域网，无线个域网或某种其他类型的无线通信链路进行通信的设备中。 在一些实现中，设备可以经由一个或多个基于脉冲的超宽带信道进行通信。 可以采用脉冲间工作循环来降低设备的功耗。 根据脉冲间工作循环，可以通过对电容性元件进行充电和放电来为脉冲的传输和接收提供电力。 子分组数据可以经由公共频带发送和接收。 手机可以通过无线通信链路组播到两个或更多的外围设备。

公开(公告)号：EP2033325A2

公开(公告)日：2009-03-11

申请号：EP07761400.6

申请日：2007-04-26

Applicant: Qualcomm Incorporated

Inventor： LEE, Chong U. ,  EKBAL, Amal ,  JULIAN, David Jonathan

IPC: H04B1/16

CPC classification number: H04B1/7174 ,  H04B1/71632 ,  H04R25/554 ,  H04R25/558 ,  H04R27/00 ,  H04R2225/33 ,  H04R2225/55 ,  H04R2227/003 ,  H04R2420/07

Abstract: Low power wireless communication techniques may be employed in devices that communicate via a wireless body area network, a wireless personal area network, or some other type of wireless communication link. In some implementations the devices may communicate via one or more impulse-based ultra-wideband channels. Inter-pulse duty cycling may be employed to reduce the power consumption of a device. Power may be provided for the transmissions and receptions of pulses by charging and discharging a capacitive element according to the inter-pulse duty cycling. Sub-packet data may be transmitted and received via a common frequency band. A cell phone may multicast to two or more peripherals via wireless communication links.

Abstract translation: 低功率无线通信技术可以用于经由无线体区域网络，无线个人区域网络或某种其他类型的无线通信链路进行通信的设备中。 在一些实现中，设备可以经由一个或多个基于脉冲的超宽带信道进行通信。 可以采用脉冲间占空比来降低器件的功耗。 可以通过根据脉冲间负载循环对电容元件充电和放电来为脉冲的发射和接收提供功率。 可以经由公共频带发送和接收子分组数据。 蜂窝电话可以通过无线通信链路多播到两个或多个外围设备。

公开(公告)号：EP2016745A2

公开(公告)日：2009-01-21

申请号：EP07760613.5

申请日：2007-04-13

Applicant: QUALCOMM Incorporated

Inventor： MOALLEMI, Kamran ,  EKBAL, Amal ,  LEE, Chong U. ,  JULIAN, David Jonathan ,  XIAO, Lu ,  ROSE, Gregory Gordon

IPC: H04L29/08

CPC classification number: H04L63/0492 ,  H04L63/08 ,  H04L67/18 ,  H04W4/02 ,  H04W4/023 ,  H04W12/06

Abstract: Various operations may be performed based on distance-related functions associated with two or more devices. For example, one or more distance-based functions may be used to control whether a device is allowed to request another device to perform one or more functions. Similarly, one or more distance-based functions may be used to control whether a device may perform one or more functions requested by another device. A distance-related function may take various form including, for example, a distance between devices, two or more distances between devices, a rate of change in a relative distance between devices, relative acceleration between devices, or some combination of two or more of the these distance-related functions.

公开(公告)号：EP2946545A1

公开(公告)日：2015-11-25

申请号：EP14703479.7

申请日：2014-01-15

Applicant: Qualcomm Incorporated

Inventor： ZENG, Huanzhao ,  LEE, Chong U. ,  HONG, John H.

IPC: H04N1/52

CPC classification number: H04N1/52 ,  H04N1/405

Abstract: Subdividing a color space is described for vector error diffusion which includes obtaining color coordinates for each primary color in the color space, and comparing the color coordinates to a threshold value for each coordinate plane of the color space. In response to the comparing, each primary color is grouped into a quadrant of the color space, wherein each quadrant is defined by the threshold value for each coordinate plane. In other aspects, a mapping a color to a closet primary color is described in a color space that includes a display determining color coordinates of the color and identifying a matching quadrant of a plurality of quadrants dividing the color space, wherein the determined color coordinates fall within the matching quadrant. A representative display device searches for the closest primary color within the matching quadrant and maps the color to the closest primary color found.

公开(公告)号：EP2025124B1

公开(公告)日：2015-10-28

申请号：EP07761390.9

申请日：2007-04-26

Applicant: Qualcomm Incorporated

Inventor： MOALLEMI, Kamran ,  EKBAL, Amal ,  LEE, Chong U. ,  JULIAN, David Jonathan ,  JAIME, Manuel E. ,  JIA, Zhanfeng

IPC: H04L29/06 ,  H04W28/24 ,  H04B1/7163 ,  H04W80/02

CPC classification number: H04B1/7163 ,  H04B2001/6908 ,  H04L69/24 ,  H04W28/24 ,  H04W80/02

公开(公告)号：EP2912503A1

公开(公告)日：2015-09-02

申请号：EP13789115.6

申请日：2013-10-24

Applicant: Qualcomm Incorporated

Inventor： MA, Jian J. ,  HONG, John H. ,  CHANG, Tallis Y. ,  LEE, Chong U. ,  DALEY, Robert Sean ,  KIM, Frederick D.

IPC: G02B5/18 ,  G02B27/01 ,  H04N5/74

CPC classification number: G02B5/1885 ,  G02B27/0172 ,  G02B2027/0174

Abstract: The various embodiments include a near-eye display having a transmissive display and a diffractive micro-lens array. The transmissive display may be positioned relative to the diffractive micro-lens array so that the distance between the transmissive display and the diffractive micro-lens array is be approximately equal to focal length of the diffractive micro-lens array. The transmissive display may also be positioned relative to the diffractive micro-lens array so that a percentage of light emitted from the transmissive display is diffracted by the micro-lens array and collimated into focus on a retina of a human eye. The transmissive display may be further positioned relative to the diffractive micro-lens array so that light from a real world scene passes through transparent portions of the transmissive display and is diffracted by the micro-lens array out of focus of the human eye.

Abstract translation: 各种实施例包括具有透射显示器和衍射微透镜阵列的近眼显示器。 透射显示器可以相对于衍射微透镜阵列定位，使得透射显示器和衍射微透镜阵列之间的距离近似等于衍射微透镜阵列的焦距。 透射显示器也可以相对于衍射微透镜阵列定位，使得从透射显示器发射的光的百分比被微透镜阵列衍射并被准直聚焦在人眼的视网膜上。 透射显示器可以相对于衍射微透镜阵列进一步定位，使得来自真实世界场景的光通过透射显示器的透明部分，并且被微透镜阵列衍射出人眼的焦点。