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公开(公告)号：US09306792B2
公开(公告)日：2016-04-05
申请号：US14632338
申请日：2015-02-26
Applicant: PARKERVISION, INC.
Inventor： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, Jr.
IPC: H04B1/16 , H04L27/38 , H03C1/62 , H03D7/00 , H04B1/00 , H04B1/28 , H04B7/12 , H04L27/00 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H03D7/14 , H04L25/08 , H04L27/06 , H04L27/26
CPC classification number: H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
Abstract: Methods, systems, and apparatuses for down-converting a modulated carrier signal to a demodulated baseband signal by sampling a portion of the energy of the carrier signal are described herein. Briefly stated, such methods systems, and apparatuses operate by receiving a modulated carrier signal and using a control signal to control a switch or switches so as to transfer a portion of the energy from the modulated carrier signal in the form of charge to a storage capacitor during a plurality of aperture periods and to discharge the charge in the storage capacitor into a load during the time between the plurality of aperture periods. The demodulated baseband signal is generated during both the charging and the discharging of the storage capacitor based on the energy accumulated at the storage capacitor as a net result of previous charging and discharging of the storage capacitor.
Abstract translation: 这里描述了通过对载波信号的能量的一部分进行采样来将调制载波信号下变频为解调基带信号的方法，系统和装置。 简而言之，这种方法系统和装置通过接收调制的载波信号并使用控制信号来控制开关或开关来操作，以便将来自调制载波信号的能量的一部分以电荷的形式传送到存储电容器 并且在多个开口周期期间的时间内将存储电容器中的电荷放电成负载。 作为存储电容器的先前充电和放电的最终结果，基于存储电容器上累积的能量，在存储电容器的充电和放电两者期间产生解调的基带信号。
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2.发明申请公开(公告)号：US20160020938A1
公开(公告)日：2016-01-21
申请号：US14815505
申请日：2015-07-31
Applicant: PARKERVISION, INC.
Inventor： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses
IPC: H04L27/26
CPC classification number: H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
Abstract: Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal is described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
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3.发明申请公开(公告)号：US20160020937A1
公开(公告)日：2016-01-21
申请号：US14815133
申请日：2015-07-31
Applicant: PARKERVISION, INC.
Inventor： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses
IPC: H04L27/26
CPC classification number: H04L27/2672 , H03D7/00 , H03D2200/006 , H04L27/265 , H04L27/3845
Abstract: Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal is described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
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公开(公告)号：US20150341196A1
公开(公告)日：2015-11-26
申请号：US14814626
申请日：2015-07-31
Applicant: PARKERVISION, INC.
Inventor： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses , Gregory S. Rawlins , Michael W. Rawlins
CPC classification number: H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
Abstract: Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (½, 1½, 2½, etc.) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
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5.发明申请Methods and Systems for Down-Converting a Signal Using a Complementary Transistor Structure 有权使用互补晶体管结构降低信号的方法和系统公开(公告)号：US20150295536A1
公开(公告)日：2015-10-15
申请号：US14751425
申请日：2015-06-26
Applicant: PARKERVISION, INC.
Inventor： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, JR.
CPC classification number: H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
Abstract: Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal is described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
Abstract translation: 这里描述了通过使EM信号进行混叠来降低电磁（EM）信号的转换的方法，系统和装置。 简要地说，这样的方法，系统和装置通过接收具有混叠速率的EM信号和混叠信号来操作。 EM信号根据混叠信号进行混叠，以降低EM信号的转换。 如本文所使用的，术语混叠是指通过以混叠速率对EM信号进行欠采样，并以混叠速率从EM信号传输能量来对EM信号进行下变频来对EM信号进行下变频。 在一个实施例中，EM信号被下变频到中频（IF）信号。 在另一实施例中，EM信号被下变频为解调的基带信息信号。 在另一个实施例中，EM信号是频率调制（FM）信号，其被下变频成非FM信号，例如相位调制（PM）信号或幅度调制（AM）信号。
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Patent Agency Ranking
公开(公告)号：US09319262B2
公开(公告)日：2016-04-19
申请号：US14751425
申请日：2015-06-26
Applicant: PARKERVISION, INC.
Inventor： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, Jr.
IPC: H03D7/14 , H04L27/38 , H03C1/62 , H03D7/00 , H04B1/00 , H04B1/28 , H04B7/12 , H04L27/00 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04B1/16 , H04L25/08 , H04L27/06 , H04L27/26
CPC classification number: H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
Abstract: Methods, systems, and apparatuses for down-converting a modulated carrier signal to a demodulated baseband signal by sampling a portion of the energy of the carrier signal are described herein. Briefly stated, such methods systems, and apparatuses operate by receiving a modulated carrier signal and using a control signal to control a switch or switches so as to transfer a portion of the energy from the modulated carrier signal in the form of charge to a storage capacitor during a plurality of aperture periods and to discharge the charge in the storage capacitor into a load during the time between the plurality of aperture periods. The demodulated baseband signal is generated—during both the charging and the discharging of the storage capacitor based on the energy accumulated at the storage capacitor as a net result of previous charging and discharging of the storage capacitor.
Abstract translation: 这里描述了通过对载波信号的能量的一部分进行采样来将调制载波信号下变频为解调基带信号的方法，系统和装置。 简而言之，这种方法系统和装置通过接收调制的载波信号并使用控制信号来控制开关或开关来操作，以便将来自调制载波信号的能量的一部分以电荷的形式传送到存储电容器 并且在多个开口周期期间的时间内将存储电容器中的电荷放电成负载。 解调的基带信号是在存储电容器的充电和放电两者期间，基于存储电容器上累积的能量作为先前存储电容器的充电和放电的最终结果而产生的。
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公开(公告)号：US09288100B2
公开(公告)日：2016-03-15
申请号：US14814626
申请日：2015-07-31
Applicant: PARKERVISION, INC.
Inventor： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses , Gregory S. Rawlins , Michael W. Rawlins
IPC: H04B1/28 , H04L27/38 , H03C1/62 , H03D7/00 , H04B1/00 , H04B7/12 , H04L27/00 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H03D7/14 , H04B1/16 , H04L25/08 , H04L27/06
CPC classification number: H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
Abstract: Methods for down converting a modulated carrier signal to a demodulated baseband signal are described herein. The method requires that a first portion of energy is transferred from the modulated carrier signal, and stored at a first storage device when a first switch is on. At least some of the energy stored in the first storage device is discharged when the first switch is off. The method further comprises transferring a second portion of energy from the modulated carrier signal, storing at a second storage device the second portion of transferred energy when a second switch is on, and discharging at least some of the energy stored in the second storage device when the second switch is off. A down-converted in-phase baseband signal portion is generated from the energy accumulated in the first storage device while both the charging and the discharging occurs, and a down-converted inverted in-phase baseband signal portion is generated from the energy accumulated in the second storage device while both the charging and the discharging occurs, and the two portions are combined with a first differential amplifier circuit to form a down-converted differential in-phase baseband signal.
Abstract translation: 这里描述了将调制载波信号下变频为解调的基带信号的方法。 该方法要求第一部分能量从调制的载波信号传送，并且当第一开关接通时存储在第一存储装置。 当第一开关断开时，存储在第一存储装置中的至少一些能量被放电。 该方法还包括从调制的载波信号传送能量的第二部分，当第二开关接通时，在第二存储装置处存储传输能量的第二部分，以及当存储在第二存储装置中的至少一些能量时， 第二个开关关闭。 在发生充电和放电的同时，从在第一存储装置中累积的能量产生下变频的同相基带信号部分，并且从累积在第一存储装置中的能量产生下变频的反相同相基带信号部分 第二存储装置同时发生充电和放电，并且两个部分与第一差分放大器电路组合以形成下变频的差分同相基带信号。
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8.发明申请公开(公告)号：US20160013755A1
公开(公告)日：2016-01-14
申请号：US14632338
申请日：2015-02-26
Applicant: PARKERVISION, INC.
Inventor： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, JR.
CPC classification number: H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
Abstract: Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal is described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
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公开(公告)号：US20150312085A1
公开(公告)日：2015-10-29
申请号：US14639366
申请日：2015-03-05
Applicant: PARKERVISION, INC.
Inventor： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses , Gregory S. Rawlins , Michael W. Rawlins
CPC classification number: H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
Abstract: Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (½, 1½, 2½, etc.) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
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公开(公告)号：US20150312084A1
公开(公告)日：2015-10-29
申请号：US14639310
申请日：2015-03-05
Applicant: PARKERVISION, INC.
Inventor： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses , Gregory S. Rawlins , Michael W. Rawlins
CPC classification number: H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
Abstract: Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (½, 1½, 2½, etc.) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
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