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1. 发明授权

US09306792B2 Methods and systems for down-converting a signal 有权
标题翻译：降低信号转换的方法和系统
公开(公告)号：US09306792B2
公开(公告)日：2016-04-05
申请号：US14632338
申请日：2015-02-26
申请人： PARKERVISION, INC.
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, Jr.
IPC分类号： 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分类号： 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
摘要： 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.
摘要翻译：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。

2. 发明申请

US20160020938A1 Methods and Systems for Down-Converting a Signal Using a Complementary Transistor Structure 有权
公开(公告)号：US20160020938A1
公开(公告)日：2016-01-21
申请号：US14815505
申请日：2015-07-31
申请人： PARKERVISION, INC.
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses
IPC分类号： H04L27/26
CPC分类号： 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
摘要： 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.

3. 发明授权

US09319262B2 Methods and systems for down-converting a signal 有权
标题翻译：降低信号转换的方法和系统
公开(公告)号：US09319262B2
公开(公告)日：2016-04-19
申请号：US14751425
申请日：2015-06-26
申请人： PARKERVISION, INC.
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, Jr.
IPC分类号： 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分类号： 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
摘要： 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.
摘要翻译：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。

4. 发明授权

US09288100B2 Method and system for down-converting and electromagnetic signal 有权
标题翻译：下变频和电磁信号的方法和系统
公开(公告)号：US09288100B2
公开(公告)日：2016-03-15
申请号：US14814626
申请日：2015-07-31
申请人： PARKERVISION, INC.
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses , Gregory S. Rawlins , Michael W. Rawlins
IPC分类号： 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分类号： 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
摘要： 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.
摘要翻译：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。

5. 发明申请

US20160013755A1 Methods and Systems for Down-Converting a Signal Using a Complementary Transistor Structure 有权
公开(公告)号：US20160013755A1
公开(公告)日：2016-01-14
申请号：US14632338
申请日：2015-02-26
申请人： PARKERVISION, INC.
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, JR.
IPC分类号： H03D7/14 , H04L27/14 , H04B1/00
CPC分类号： 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
摘要： 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.

6. 发明申请

US20150312085A1 Method and System for Down-Converting an Electromagnetic Signal, and Transforms for Same, and Aperture Relationships 有权
公开(公告)号：US20150312085A1
公开(公告)日：2015-10-29
申请号：US14639366
申请日：2015-03-05
申请人： PARKERVISION, INC.
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses , Gregory S. Rawlins , Michael W. Rawlins
IPC分类号： H04L27/38 , H04L25/08 , H04L27/06 , H04L27/14
CPC分类号： 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
摘要： 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.

7. 发明申请

US20150312084A1 Method and System for Down-Converting an Electromagnetic Signal, and Transforms for Same, and Aperture Relationships 有权
公开(公告)号：US20150312084A1
公开(公告)日：2015-10-29
申请号：US14639310
申请日：2015-03-05
申请人： PARKERVISION, INC.
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses , Gregory S. Rawlins , Michael W. Rawlins
IPC分类号： H04L27/38 , H04L25/08 , H04L27/06 , H04L27/14
CPC分类号： 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
摘要： 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.

8. 发明申请

US20150244551A1 Method and System for Down-Converting an Electromagnetic Signal, and Transforms for Same, and Aperture Relationships 有权
标题翻译：降低转换电磁信号的方法和系统，以及相同的转换和光圈关系
公开(公告)号：US20150244551A1
公开(公告)日：2015-08-27
申请号：US14639296
申请日：2015-03-05
申请人： PARKERVISION, INC.
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses , Gregory S. Rawlins , Michael W. Rawlins
IPC分类号： H04L27/14 , H04L27/156 , H03D7/00 , H04L27/148
CPC分类号： 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
摘要： 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.
摘要翻译：本文描述了用于电磁（EM）信号的下变频的方法，系统和装置，以及其组合和子组合。简言之，在实施例中，本发明通过接收EM信号并且在载波信号的近似半周期（½，1½，2½等）上递归地操作）来操作。可以以载波信号的次谐波速率执行递归运算。本发明积累了递归运算的结果，并使用累加结果形成降频转换信号。在一个实施例中，EM信号被下变频到中频（IF）信号。在另一个实施例中，EM信号被下变频为基带信息信号。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。

9. 发明申请

US20150215151A1 APPLICATIONS OF UNIVERSAL FREQUENCY TRANSLATION 审中-公开
标题翻译：通用频率翻译的应用
公开(公告)号：US20150215151A1
公开(公告)日：2015-07-30
申请号：US14473410
申请日：2014-08-29
申请人： ParkerVision, Inc.
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, JR.
IPC分类号： H04L27/38
CPC分类号： H04L27/3818 , H03D7/00 , H03K5/00006
摘要： Frequency translation and applications of same are described herein. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and filtering, and combinations and applications of same.
摘要翻译：本文描述了频率转换及其应用。这样的应用包括但不限于降频转换，上变频，增强信号接收，统一下变频和滤波，以及它们的组合和应用。

10. 发明申请

US20140308909A1 Up-Conversion Based on Gated Information Signal 审中-公开
标题翻译：基于门控信息信号的上转换
公开(公告)号：US20140308909A1
公开(公告)日：2014-10-16
申请号：US14054548
申请日：2013-10-15
申请人： ParkerVision, Inc.
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Robert C. Looke , Charley D. Moses, JR.
IPC分类号： H03D7/00 , H04B1/04
CPC分类号： H03D7/00 , H03C1/62 , H04B1/04 , H04B7/12 , H04B2001/0491
摘要： A method and system is described wherein an information signal is gated at a frequency that is a sub-harmonic of the frequency of the desired output signal. In the modulation embodiments, the information signal is modulated as part of the up-conversion process. In a first modulation embodiment, one information signal is phase modulated onto the carrier signal as part of the up-conversion process. In a second modulation embodiment, two information signals are multiplied, and, as part of the up-conversion process, one signal is phase modulated onto the carrier and the other signal is amplitude modulated onto the carrier. In a third modulation embodiment, one information signal is phase modulated onto the “I” phase of the carrier signal as part of the up-conversion process and a second information signal is phase modulated onto the “Q” phase of the carrier as part of the up-conversion process.
摘要翻译：描述了一种方法和系统，其中信息信号以作为期望输出信号的频率的次谐波的频率门控。在调制实施例中，作为上转换处理的一部分调制信息信号。在第一调制实施例中，作为上转换处理的一部分，一个信息信号被相位调制到载波信号上。在第二调制实施例中，将两个信息信号相乘，并且作为上转换处理的一部分，一个信号被相位调制到载波上，另一个信号被幅度调制到载波上。在第三调制实施例中，一个信息信号作为上变频处理的一部分被相位调制到载波信号的“I”相上，并且第二信息信号被相位调制到载波的“Q”相，作为上转换过程。

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