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公开(公告)号：US10200067B1
公开(公告)日：2019-02-05
申请号：US15875782
申请日：2018-01-19
Applicant: Apple Inc.
Inventor： Ehsan Adabi , Albert C. Jerng
Abstract: Systems and methods for improving operational efficiency of a radio frequency system, which includes a low noise amplifier coupled to an antenna that generates an analog electrical signal based on received electromagnetic waves. The low noise amplifier includes a positive input transistor with a first drain, a negative input transistor with a second drain, a first data branch coupled between the first and second drains, and a second data branch coupled between the first drain and second drains. The first data branch supplies a first current modulated signal generated based on the analog electrical signal when the radio frequency system expects the received electromagnetic waves to include data indicated using a first communication protocol. The second data branch supplies a second current modulated signal generated based on the analog electrical signal when the radio frequency system expects the received electromagnetic waves to include data indicated using a second communication protocol.
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公开(公告)号：US10122391B2
公开(公告)日：2018-11-06
申请号：US14870768
申请日：2015-09-30
Applicant: Apple Inc.
Inventor： Navid Lashkarian , Ehsan Adabi , Albert Chia-Wen Jerng , Arya Behzad , Ali Parsa
Abstract: Systems and method provided herein relate to reducing distortion of signals introduced by components on a phase path of a radio frequency system polar architecture. To reduce phase path distortion, a pre-distortion is introduced prior to a distortion caused by the components on the phase path. The pre-distortion in conjunction with the component distortion results in a transmission signal that forms its expected shape.
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公开(公告)号：US09685981B2
公开(公告)日：2017-06-20
申请号：US14641031
申请日：2015-03-06
Applicant: APPLE INC.
Inventor： Ehsan Adabi , Albert C. Jerng
CPC classification number: H04B1/0458 , H03F1/0222 , H03F1/0277 , H03F3/195 , H03F3/211 , H03F3/2178 , H03F3/24 , H03F3/245 , H03F3/72 , H03F2200/507 , H04B1/0475 , H04B2001/0408
Abstract: Systems and method for improving operation of a radio frequency system are provided. One embodiment provides a radio frequency system that includes a first amplifier unit with a first logic gate, which receives an input analog electrical signal and a first bit of an amplifier control signal that enables or disables the first amplifier unit, and a first switching power amplifier that generates a first output analog electrical signal when enabled. The radio frequency system further includes a second amplifier unit with a second logic gate, which receives the input analog electrical signal and a second bit of the amplifier control signal that enables or disables the second amplifier unit, and a second switching power amplifier that generates a second output analog electrical signal when enabled. The first amplifier unit and the second amplifier unit are electrically coupled to enable the first output analog electrical signal and the second output analog electrical signal to be combined.
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公开(公告)号：US20170093444A1
公开(公告)日：2017-03-30
申请号：US14870768
申请日：2015-09-30
Applicant: Apple Inc.
Inventor： Navid Lashkarian , Ehsan Adabi , Albert Chia-Wen Jerng , Arya Behzad , Ali Parsa
CPC classification number: H04B1/0475 , H03C5/00 , H03F1/3241 , H04B1/0483 , H04B2001/0425 , H04L27/36 , H04L27/361 , H04L27/368
Abstract: Systems and method provided herein relate to reducing distortion of signals introduced by components on a phase path of a radio frequency system polar architecture. To reduce phase path distortion, a pre-distortion is introduced prior to a distortion caused by the components on the phase path. The pre-distortion in conjunction with the component distortion results in a transmission signal that forms its expected shape.
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Patent Agency Ranking
公开(公告)号：US20160261243A1
公开(公告)日：2016-09-08
申请号：US14640978
申请日：2015-03-06
Applicant: APPLE INC.
Inventor： Ehsan Adabi , Albert C. Jerng
CPC classification number: H03F3/217 , H03F1/0222 , H03F3/19 , H03F3/193 , H03F3/211 , H03F3/2173 , H03F3/2178 , H03F3/24 , H03F3/245 , H03F3/45179 , H03F2200/451 , H03F2203/45352 , H03F2203/45366 , H03F2203/45394 , H03F2203/45562 , H03F2203/45631 , H03F2203/45638 , H04B1/04 , H04B2001/0408
Abstract: Systems and method for improving operation of a radio frequency system are provided. One embodiment describes a radio frequency system, which includes a first switching power amplifier that outputs an amplified analog electrical signal based on a first input analog electrical signal and voltage of an envelope voltage supply rail. The first switching power amplifier includes a first transistor with a gate that receives the first input analog electrical signal, a source that is electrically coupled to the envelope voltage supply rail, and a drain that is electrically coupled to an output of the first switching power amplifier; a second transistor with a gate that receives the first input analog electrical signal, a source electrically coupled to ground, and a drain electrically coupled to the output of the first switching power amplifier; and a third transistor with a gate that receives the first input analog electrical signal, a drain electrically coupled to the envelope voltage supply rail, and a source electrically coupled to an output of a second switching power amplifier.
Abstract translation: 提供了改善射频系统操作的系统和方法。 一个实施例描述了一种射频系统，其包括基于第一输入模拟电信号和包络电压电源轨的电压输出放大的模拟电信号的第一开关功率放大器。 第一开关功率放大器包括具有接收第一输入模拟电信号的栅极的第一晶体管，电耦合到包络电压源轨的源，以及与第一开关功率放大器的输出电耦合的漏极 ; 第二晶体管，其具有接收第一输入模拟电信号的栅极，电耦合到地的源极和与第一开关功率放大器的输出电耦合的漏极; 以及第三晶体管，其具有接收第一输入模拟电信号的栅极，电耦合到包络电压源导轨的漏极，以及电耦合到第二开关功率放大器的输出的源极。
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公开(公告)号：US10110180B2
公开(公告)日：2018-10-23
申请号：US15401847
申请日：2017-01-09
Applicant: Apple Inc.
Inventor： Ehsan Adabi , Albert C. Jerng
Abstract: Systems and method for improving operation of a radio frequency system are provided. One embodiment includes a switching power amplifier that outputs an amplified analog electrical signal based on an input electrical signal and voltage of an envelope voltage supply rail. The switching power amplifier includes a first transistor with a gate that receives the input electrical signal, a source electrically coupled to the envelope voltage supply rail, and a drain electrically coupled to an output of the switching power amplifier; a second transistor with a gate that receives the input electrical signal, a source electrically coupled to ground, and a drain electrically coupled to the output; and a third transistor with a gate that receives the input electrical signal, a drain electrically coupled to the envelope voltage supply rail, and a source electrically coupled to an output of another switching power amplifier.
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公开(公告)号：US20180006619A1
公开(公告)日：2018-01-04
申请号：US15401847
申请日：2017-01-09
Applicant: Apple Inc.
Inventor： Ehsan Adabi , Albert C. Jerng
CPC classification number: H03F3/217 , H03F1/0222 , H03F3/19 , H03F3/193 , H03F3/211 , H03F3/2173 , H03F3/2178 , H03F3/24 , H03F3/245 , H03F3/45179 , H03F2200/451 , H03F2203/45352 , H03F2203/45366 , H03F2203/45394 , H03F2203/45562 , H03F2203/45631 , H03F2203/45638 , H04B1/04 , H04B2001/0408
Abstract: Systems and method for improving operation of a radio frequency system are provided. One embodiment includes a switching power amplifier that outputs an amplified analog electrical signal based on an input electrical signal and voltage of an envelope voltage supply rail. The switching power amplifier includes a first transistor with a gate that receives the input electrical signal, a source electrically coupled to the envelope voltage supply rail, and a drain electrically coupled to an output of the switching power amplifier; a second transistor with a gate that receives the input electrical signal, a source electrically coupled to ground, and a drain electrically coupled to the output; and a third transistor with a gate that receives the input electrical signal, a drain electrically coupled to the envelope voltage supply rail, and a source electrically coupled to an output of another switching power amplifier.
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公开(公告)号：US09543910B2
公开(公告)日：2017-01-10
申请号：US14640978
申请日：2015-03-06
Applicant: APPLE INC.
Inventor： Ehsan Adabi , Albert C. Jerng
CPC classification number: H03F3/217 , H03F1/0222 , H03F3/19 , H03F3/193 , H03F3/211 , H03F3/2173 , H03F3/2178 , H03F3/24 , H03F3/245 , H03F3/45179 , H03F2200/451 , H03F2203/45352 , H03F2203/45366 , H03F2203/45394 , H03F2203/45562 , H03F2203/45631 , H03F2203/45638 , H04B1/04 , H04B2001/0408
Abstract: Systems and method for improving operation of a radio frequency system are provided. One embodiment describes a radio frequency system, which includes a first switching power amplifier that outputs an amplified analog electrical signal based on a first input analog electrical signal and voltage of an envelope voltage supply rail. The first switching power amplifier includes a first transistor with a gate that receives the first input analog electrical signal, a source that is electrically coupled to the envelope voltage supply rail, and a drain that is electrically coupled to an output of the first switching power amplifier; a second transistor with a gate that receives the first input analog electrical signal, a source electrically coupled to ground, and a drain electrically coupled to the output of the first switching power amplifier; and a third transistor with a gate that receives the first input analog electrical signal, a drain electrically coupled to the envelope voltage supply rail, and a source electrically coupled to an output of a second switching power amplifier.
Abstract translation: 提供了改善射频系统操作的系统和方法。 一个实施例描述了一种射频系统，其包括基于第一输入模拟电信号和包络电压电源轨的电压输出放大的模拟电信号的第一开关功率放大器。 第一开关功率放大器包括第一晶体管，其具有接收第一输入模拟电信号的栅极，电耦合到包络电压电源轨的源，以及电耦合到第一开关功率放大器的输出的漏极 ; 第二晶体管，其具有接收第一输入模拟电信号的栅极，电耦合到地的源极和与第一开关功率放大器的输出电耦合的漏极; 以及第三晶体管，其具有接收第一输入模拟电信号的栅极，电耦合到包络电压源导轨的漏极，以及电耦合到第二开关功率放大器的输出的源极。
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公开(公告)号：US20160261293A1
公开(公告)日：2016-09-08
申请号：US14641031
申请日：2015-03-06
Applicant: APPLE INC.
Inventor： Ehsan Adabi , Albert C. Jerng
IPC: H04B1/04
CPC classification number: H04B1/0458 , H03F1/0222 , H03F1/0277 , H03F3/195 , H03F3/211 , H03F3/2178 , H03F3/24 , H03F3/245 , H03F3/72 , H03F2200/507 , H04B1/0475 , H04B2001/0408
Abstract: Systems and method for improving operation of a radio frequency system are provided. One embodiment provides a radio frequency system that includes a first amplifier unit with a first logic gate, which receives an input analog electrical signal and a first bit of an amplifier control signal that enables or disables the first amplifier unit, and a first switching power amplifier that generates a first output analog electrical signal when enabled. The radio frequency system further includes a second amplifier unit with a second logic gate, which receives the input analog electrical signal and a second bit of the amplifier control signal that enables or disables the second amplifier unit, and a second switching power amplifier that generates a second output analog electrical signal when enabled. The first amplifier unit and the second amplifier unit are electrically coupled to enable the first output analog electrical signal and the second output analog electrical signal to be combined.
Abstract translation: 提供了改善射频系统操作的系统和方法。 一个实施例提供一种射频系统，其包括具有第一逻辑门的第一放大器单元，其接收输入模拟电信号和放大器控制信号的第一位，所述放大器控制信号使能或禁用第一放大器单元;以及第一开关功率放大器 当使能时，它产生第一个输出模拟电信号。 射频系统还包括具有第二逻辑门的第二放大器单元，其接收输入的模拟电信号和放大器控制信号的第二位，其使能或禁用第二放大器单元;以及第二开关功率放大器，其产生 启用时第二个输出模拟电信号。 第一放大器单元和第二放大器单元电耦合以使得能够组合第一输出模拟电信号和第二输出模拟电信号。
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