公开(公告)号：US20160048470A1

公开(公告)日：2016-02-18

申请号：US14822175

申请日：2015-08-10

Applicant: Texas Instruments Incorporated

Inventor： Xiaoxi Zhang ,  Nikolaus Klemmer ,  Hunsoo Choo

IPC: G06F13/364 ,  G06F13/24 ,  G06F13/42

CPC classification number: G06F13/364 ,  G06F13/24 ,  G06F13/4282

Abstract: Triggered remote function calls can be used in master-slave systems to trigger slave-side software functions pre-loaded by a master into slave MCU memory, with associated parameters pre-loaded into a slave function interface memory. A master issues trigger-function signals (such as rising/falling edges or signal levels) over a trigger-function signal line. The slave includes a trigger conditioning block that in response issues a trigger-function request to the slave MCU, which calls/executes the associated software function, including accessing the associated trigger-function parameters from function interface memory. A slave can include a hardware function block with functionality configurable by a pre-loaded software configuration function (with associated parameters). A master can include a hardware function block configured to issue trigger-function signals. The slave (trigger conditioning block) can be configured to service trigger-function signals as an IRQ (interrupt request) to the MCU, which executes an ISR (interrupt service routine) as a triggered function call.

Abstract translation: 触发的远程功能调用可以在主从系统中使用，以将主机预加载的从机软件功能触发到从MCU存储器中，并将相关参数预加载到从功能接口存储器中。 主机通过触发功能信号线发出触发功能信号（如上升沿/下降沿或信号电平）。 从设备包括一个触发调节块，它响应发出一个触发功能请求给从MCU，从机MCU调用/执行相关的软件功能，包括从功能接口存储器访问相关的触发功能参数。 从机可以包括硬件功能块，其功能可通过预加载的软件配置功能（具有相关参数）配置。 主机可以包括配置为发出触发功能信号的硬件功能块。 从机（触发条件块）可以被配置为将触发功能信号作为IRQ（中断请求）提供给MCU，该MCU执行ISR（中断服务程序）作为触发的函数调用。

公开(公告)号：US10140229B2

公开(公告)日：2018-11-27

申请号：US14822175

申请日：2015-08-10

Applicant: Texas Instruments Incorporated

Inventor： Xiaoxi Zhang ,  Nikolaus Klemmer ,  Hunsoo Choo

IPC: G06F13/10 ,  G06F9/445 ,  G06F13/364 ,  G06F13/42 ,  G06F13/24

Abstract: Triggered remote function calls can be used in master-slave systems to trigger slave-side software functions pre-loaded by a master into slave MCU memory, with associated parameters pre-loaded into a slave function interface memory. A master issues trigger-function signals (such as rising/falling edges or signal levels) over a trigger-function signal line. The slave includes a trigger conditioning block that in response issues a trigger-function request to the slave MCU, which calls/executes the associated software function, including accessing the associated trigger-function parameters from function interface memory. A slave can include a hardware function block with functionality configurable by a pre-loaded software configuration function (with associated parameters). A master can include a hardware function block configured to issue trigger-function signals. The slave (trigger conditioning block) can be configured to service trigger-function signals as an IRQ (interrupt request) to the MCU, which executes an ISR (interrupt service routine) as a triggered function call.

公开(公告)号：US09998169B2

公开(公告)日：2018-06-12

申请号：US15466418

申请日：2017-03-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Charles Kasimer Sestok, IV ,  Hunsoo Choo ,  Nikolaus Klemmer ,  Xiaoxi Zhang

IPC: H04B1/38 ,  H04B1/403 ,  H04L7/033 ,  H04B1/40

CPC classification number: H04B1/406 ,  H04B1/1027 ,  H04B1/403 ,  H04L7/0331

Abstract: A phase rotator corrects the IQ imbalance in a wireless transceiver. The phase rotator is a part of a compensation system that detects and separates reception impairment images from transmission impairment images. The disclosed phase rotator introduces a phase shift between the transmission channel and the reception channel without perturbing the phase mismatch and the gain mismatch in the reception path. The phase rotator includes a first local oscillation (LO) circuit that generates a first LO signal at a first carrier frequency and a second LO circuit that generates a second LO signal at a second carrier frequency that deviates from the first carrier frequency for a phase rotation period. The phase rotation period is sufficiently long such that the frequency deviation can introduce a prescribed phase shift between the first LO signal and the second LO signal.

公开(公告)号：US20160036486A1

公开(公告)日：2016-02-04

申请号：US14814197

申请日：2015-07-30

Applicant: Texas Instruments Incorporated

Inventor： Charles Kasimer Sestok, IV ,  Hunsoo Choo ,  Nikolaus Klemmer ,  Xiaoxi Zhang

IPC: H04B1/403 ,  H04L7/033 ,  H04B1/10

CPC classification number: H04B1/406 ,  H04B1/1027 ,  H04B1/403 ,  H04L7/0331

Abstract: A phase rotator corrects the IQ imbalance in a wireless transceiver. The phase rotator is a part of a compensation system that detects and separates reception impairment images from transmission impairment images. The disclosed phase rotator introduces a phase shift between the transmission channel and the reception channel without perturbing the phase mismatch and the gain mismatch in the reception path. The phase rotator includes a first local oscillation (LO) circuit that generates a first LO signal at a first carrier frequency and a second LO circuit that generates a second LO signal at a second carrier frequency that deviates from the first carrier frequency for a phase rotation period. The phase rotation period is sufficiently long such that the frequency deviation can introduce a prescribed phase shift between the first LO signal and the second LO signal.

Abstract translation: 相位旋转器校正无线收发器中的IQ不平衡。 相位旋转器是检测和分离接收损伤图像与传输损伤图像的补偿系统的一部分。 所公开的相位旋转器在传输信道和接收信道之间引入相移，而不会扰乱接收路径中的相位失配和增益失配。 相位旋转器包括以第一载波频率产生第一LO信号的第一本地振荡（LO）电路和产生第二载波频率的第二LO信号，该第二LO信号偏离第一载波频率用于相位旋转 期。 相位旋转周期足够长，使得频率偏差可以在第一LO信号和第二LO信号之间引入规定的相移。

公开(公告)号：US20170195002A1

公开(公告)日：2017-07-06

申请号：US15466418

申请日：2017-03-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Charles Kasimer Sestok, IV ,  Hunsoo Choo ,  Nikolaus Klemmer ,  Xiaoxi Zhang

IPC: H04B1/403 ,  H04L7/033

CPC classification number: H04B1/406 ,  H04B1/1027 ,  H04B1/403 ,  H04L7/0331

Abstract: A phase rotator corrects the IQ imbalance in a wireless transceiver. The phase rotator is a part of a compensation system that detects and separates reception impairment images from transmission impairment images. The disclosed phase rotator introduces a phase shift between the transmission channel and the reception channel without perturbing the phase mismatch and the gain mismatch in the reception path. The phase rotator includes a first local oscillation (LO) circuit that generates a first LO signal at a first carrier frequency and a second LO circuit that generates a second LO signal at a second carrier frequency that deviates from the first carrier frequency for a phase rotation period. The phase rotation period is sufficiently long such that the frequency deviation can introduce a prescribed phase shift between the first LO signal and the second LO signal.

公开(公告)号：US09641317B2

公开(公告)日：2017-05-02

申请号：US14814197

申请日：2015-07-30

Applicant: Texas Instruments Incorporated

Inventor： Charles Kasimer Sestok, IV ,  Hunsoo Choo ,  Nikolaus Klemmer ,  Xiaoxi Zhang

IPC: H04B1/40 ,  H04L7/033 ,  H04B1/10 ,  H04B1/403

CPC classification number: H04B1/406 ,  H04B1/1027 ,  H04B1/403 ,  H04L7/0331

Abstract: A phase rotator corrects the IQ imbalance in a wireless transceiver. The phase rotator is a part of a compensation system that detects and separates reception impairment images from transmission impairment images. The disclosed phase rotator introduces a phase shift between the transmission channel and the reception channel without perturbing the phase mismatch and the gain mismatch in the reception path. The phase rotator includes a first local oscillation (LO) circuit that generates a first LO signal at a first carrier frequency and a second LO circuit that generates a second LO signal at a second carrier frequency that deviates from the first carrier frequency for a phase rotation period. The phase rotation period is sufficiently long such that the frequency deviation can introduce a prescribed phase shift between the first LO signal and the second LO signal.