公开(公告)号：US08989660B2

公开(公告)日：2015-03-24

申请号：US13733725

申请日：2013-01-03

Applicant: QUALCOMM Incorporated

Inventor： Faramarz Sabouri ,  Haritha Eachempatti ,  Paul DenBoer

IPC: H04B5/00 ,  H04W52/02

CPC classification number: H04B5/00 ,  H04W52/0245 ,  Y02D70/00 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/42

Abstract: Hardware interrupt functionality associated with a disable pin may be used to place a near-field communication (NFC) device into various operational modes. For example, various intermediate voltage windows may be defined within an I/O voltage domain and a resistive divider running off an I/O rail may generate multiple reference voltages within the I/O voltage domain. In one embodiment, different comparators may compare voltage on the disable pin to the reference voltages generated with the resistive divider to determine whether the voltage on the disable pin falls within one of the intermediate voltage windows. As such, if a particular comparator determines that the voltage on the disable pin falls within one of the intermediate voltage windows, a control signal may be generated to transition the NFC device into a corresponding operational mode.

Abstract translation: 与禁用引脚相关联的硬件中断功能可用于将近场通信（NFC）设备放置到各种操作模式中。 例如，可以在I / O电压域内定义各种中间电压窗口，并且从I / O轨道运行的电阻分压器可以在I / O电压域内产生多个参考电压。 在一个实施例中，不同的比较器可以将禁用引脚上的电压与电阻分压器产生的参考电压进行比较，以确定禁用引脚上的电压是否落在中间电压窗口之一内。 因此，如果特定比较器确定禁用引脚上的电压落在中间电压窗口之一内，则可以产生控制信号以将NFC设备转换到相应的操作模式。

公开(公告)号：US20140187154A1

公开(公告)日：2014-07-03

申请号：US13733725

申请日：2013-01-03

Applicant: QUALCOMM INCORPORATED

Inventor： Faramarz Sabouri ,  Haritha Eachempatti ,  Paul DenBoer

IPC: H04B5/00

CPC classification number: H04B5/00 ,  H04W52/0245 ,  Y02D70/00 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/42

Abstract: Hardware interrupt functionality associated with a disable pin may be used to place a near-field communication (NFC) device into various operational modes. For example, various intermediate voltage windows may be defined within an I/O voltage domain and a resistive divider running off an I/O rail may generate multiple reference voltages within the I/O voltage domain. In one embodiment, different comparators may compare voltage on the disable pin to the reference voltages generated with the resistive divider to determine whether the voltage on the disable pin falls within one of the intermediate voltage windows. As such, if a particular comparator determines that the voltage on the disable pin falls within one of the intermediate voltage windows, a control signal may be generated to transition the NFC device into a corresponding operational mode.

Abstract translation: 与禁用引脚相关联的硬件中断功能可用于将近场通信（NFC）设备放置到各种操作模式中。 例如，可以在I / O电压域内定义各种中间电压窗口，并且从I / O轨道运行的电阻分压器可以在I / O电压域内产生多个参考电压。 在一个实施例中，不同的比较器可以将禁用引脚上的电压与电阻分压器产生的参考电压进行比较，以确定禁用引脚上的电压是否落在中间电压窗口之一内。 因此，如果特定比较器确定禁用引脚上的电压落在中间电压窗口之一内，则可以产生控制信号以将NFC设备转换到相应的操作模式。