公开(公告)号：US20150145575A1

公开(公告)日：2015-05-28

申请号：US14330494

申请日：2014-07-14

Applicant: QUALCOMM Incorporated

Inventor： Wenqing Wu ,  Raghu Sagar Madala ,  Kendrick Hoy Leong Yuen ,  Karim Arabi ,  Robert Philip Gilmore

IPC: H03K3/45 ,  H03K19/20 ,  H03K3/012 ,  H03K3/037

CPC classification number: H03K3/45 ,  G11C11/161 ,  G11C11/1675 ,  G11C11/18 ,  H01L43/08 ,  H03K19/18 ,  H03K19/20

Abstract: Aspects described herein are related to spintronic logic gates employing a Giant Spin Hall Effect (GSHE) magnetic tunnel junction (MTJ) element(s) for performing logical operations. In one aspect, a spintronic logic gate is disclosed that includes a charge current generation circuit and a GSHE MTJ element. The charge current generation circuit is configured to generate a charge current representing an input bit set. The input bit set may include one or more input bit states for a logical operation. The GSHE MTJ element is configured to set a logical output bit state for the logical operation, and has a threshold current level. The GSHE MTJ element is configured to generate a GSHE spin current in response to the charge current and perform the logical operation on the input bit set by setting the logical output bit state based on whether the GSHE spin current exceeds the threshold current level.

Abstract translation: 本文描述的方面涉及采用用于执行逻辑操作的巨型旋转霍尔效应（GSHE）磁性隧道结（MTJ）元件的自旋电子逻辑门。 一方面，公开了一种包括充电电流产生电路和GSHE MTJ元件的自旋电子逻辑门。 充电电流产生电路被配置为产生表示输入位组的充电电流。 输入位集可以包括用于逻辑运算的一个或多个输入位状态。 GSHE MTJ元件配置为逻辑运算的逻辑输出位状态，并具有阈值电流电平。 GSHE MTJ元件被配置为响应于充电电流产生GSHE自旋电流，并且基于GSHE自旋电流是否超过阈值电流电平来设置逻辑输出位状态来对所设置的输入位执行逻辑运算。

公开(公告)号：US20150084972A1

公开(公告)日：2015-03-26

申请号：US14036526

申请日：2013-09-25

Applicant: QUALCOMM Incorporated

Inventor： Wenqing Wu ,  Senthil Kumar Govindaswamy ,  Raghu Sagar Madala ,  Peiyuan Wang ,  Kendrick Hoy Leong Yuen ,  David Joseph Winston Hansquine

IPC: G09G3/20 ,  H04B5/00

CPC classification number: H04B5/0031 ,  G09G3/2096 ,  G09G2370/16 ,  H01L27/22 ,  H01L43/08 ,  H04B5/0087 ,  H04W4/80

Abstract: Embodiments described herein are related to contactless data communication. Related systems and methods for contactless data communication are disclosed herein. For example, a magnetic field-based contactless transmitter is disclosed that includes a substrate, a pair of dipole coils disposed on the substrate, and a drive circuit electrically coupled to the pair of dipole coils. To transmit data to a magnetic tunnel junction (MTJ) receiver disposed on a second substrate, the drive circuit is configured to drive the pair of dipole coils so as to generate a magnetic field in-plane to the MTJ receiver. Data can be transmitted from the magnetic field-based contactless transmitter to the MTJ receiver using the magnetic field.

Abstract translation: 本文描述的实施例涉及非接触式数据通信。 本文公开了用于非接触式数据通信的相关系统和方法。 例如，公开了一种基于磁场的非接触式发射器，其包括衬底，设置在衬底上的一对偶极线圈，以及与该对偶极线圈电耦合的驱动电路。 为了将数据发送到设置在第二基板上的磁性隧道结（MTJ）接收器，驱动电路被配置为驱动一对偶极子线圈，以便在MTJ接收器的平面内产生磁场。 可以使用磁场将数据从基于磁场的非接触式发射机传输到MTJ接收机。

公开(公告)号：US20140222880A1

公开(公告)日：2014-08-07

申请号：US13759130

申请日：2013-02-05

Applicant: QUALCOMM INCORPORATED

Inventor： Wenqing Wu ,  Peiyuan Wang ,  Raghu Sagar Madala ,  Senthil Kumar Govindaswamy ,  Kendrick H. Yuen ,  Robert P. Gilmore ,  Jung Pill Kim ,  Seung H. Kang

IPC: G06F7/58

CPC classification number: G06F7/58 ,  G06F7/588

Abstract: A method and apparatus for generating random binary sequences from a physical entropy source having a state A and a state B by detecting whether the physical entropy source is in the state A or in the state B, attempting to shift the state of the physical entropy source to the opposite state in a probabilistic manner with less than 100% certainty, and producing one of four outputs based on the detected state and the state of the physical entropy source before the attempted shift. The outputs are placed in first and second queues and extracted in pairs from each queue. Random binary bits are output based on the sequences extracted from each queue.

Abstract translation: 一种用于通过检测物理熵源是处于状态A还是处于状态B从具有状态A和状态B的物理熵源生成随机二进制序列的方法和装置，试图移动物理熵源的状态 以小于100％确定性的概率方式处于相反状态，并且在尝试移位之前基于检测到的状态和物理熵源的状态产生四个输出中的一个。 将输出放置在第一和第二队列中，并从每个队列成对提取。 基于从每个队列提取的序列输出随机二进制位。