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1. 发明申请

US20070202911A1 System And Method For Energy Efficient Signal Detection In A Wireless Network Device 审中-公开
标题翻译：无线网络设备中的能量信号检测系统与方法
公开(公告)号：US20070202911A1
公开(公告)日：2007-08-30
申请号：US10569205
申请日：2004-08-28
申请人： Olaf Hirsch , Charles Razzell , Yifeng Zhang
发明人： Olaf Hirsch , Charles Razzell , Yifeng Zhang
IPC分类号： H04B7/00
CPC分类号： H04W52/287 , H04W52/0225 , Y02D70/142
摘要： An incoming signal, such as a data frame, is detected in a RF stage (302) of a wireless station (300). This allows the baseband stage (304) to be in a low power or off state until an incoming signal is detected. By detecting an incoming signal in the RF stage (302), the amount of power consumed by the baseband stage (304) is advantageously reduced. When an incoming signal is detected, the RF stage (302) generates an activation signal that is sent to the baseband stage (304) to activate the baseband stage (304). Once activated, the baseband stage (304) receives the signal and performs signal processing and data recovery operations.
摘要翻译：在无线站（300）的RF级（302）中检测诸如数据帧的输入信号。这允许基带级（304）处于低功率或关断状态，直到检测到输入信号。通过检测RF级（302）中的输入信号，有利地减少了基带级（304）消耗的功率量。当检测到输入信号时，RF级（302）产生发送到基带级（304）以激活基带级（304）的激活信号。一旦被激活，基带级（304）接收信号并执行信号处理和数据恢复操作。

2. 发明授权

US08009724B2 Clear channel assessment (CCA) for UWB communications system 有权
标题翻译：清除UWB通信系统的信道评估（CCA）
公开(公告)号：US08009724B2
公开(公告)日：2011-08-30
申请号：US11574235
申请日：2005-08-25
申请人： Charles Razzell , Yifeng Zhang
发明人： Charles Razzell , Yifeng Zhang
IPC分类号： H04B1/00
CPC分类号： H04L27/2647 , H04L5/0007 , H04L27/0006 , H04L27/2605 , H04W24/00 , H04W52/0232 , H04W52/0245 , H04W74/00 , Y02D70/142
摘要： Clear channel assessment (CCA) is a very important issue in Ultra-Wideband (UWB) systems. An effective CCA mechanism will have a large impact on the overall throughput of the communications system. It is disclosed methods and circuits to carry out CCA determinations exploiting the structure of the pulse signal either by using a moving average or by performing a cross-correlation with a locally generated signal.
摘要翻译：清晰频道评估（CCA）是超宽带（UWB）系统中非常重要的课题。有效的共同国家评估机制将对通信系统的整体吞吐量产生很大的影响。公开了通过使用移动平均或通过与本地产生的信号进行互相关来执行利用脉冲信号的结构的CCA确定的方法和电路。

3. 发明申请

US20080192810A1 Clear Channel Assessment (Cca) for Uwb Communications System 有权
标题翻译： Uwb通信系统的清晰通道评估（Cca）
公开(公告)号：US20080192810A1
公开(公告)日：2008-08-14
申请号：US11574235
申请日：2005-08-25
申请人： Charles Razzell , Yifeng Zhang
发明人： Charles Razzell , Yifeng Zhang
IPC分类号： H04B1/707
CPC分类号： H04L27/2647 , H04L5/0007 , H04L27/0006 , H04L27/2605 , H04W24/00 , H04W52/0232 , H04W52/0245 , H04W74/00 , Y02D70/142
摘要： Clear channel assessment (CCA) is a very important issue in Ultra-Wideband (UWB) systems. An effective CCA mechanism will have a large impact on the overall throughput of the communications system. It is disclosed methods and circuits to carry out CCA determinations exploiting the structure of the pulse signal either by using a moving average or by performing a cross-correlation with a locally generated signal.
摘要翻译：清晰频道评估（CCA）是超宽带（UWB）系统中非常重要的课题。有效的共同国家评估机制将对通信系统的整体吞吐量产生很大的影响。公开了通过使用移动平均或通过与本地产生的信号进行互相关来执行利用脉冲信号的结构的CCA确定的方法和电路。

4. 外观设计

USD1019612S1 Combined earphones with charging case 有权
公开(公告)号：USD1019612S1
公开(公告)日：2024-03-26
申请号：US29827894
申请日：2022-02-23
申请人： Yifeng Zhang
设计人： Yifeng Zhang
摘要： FIG. 1 is a perspective view of the earphones of a combined earphones with charging case showing the new design, shown separately to show aspects of the design that are not visible when combined;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a perspective view of the charging case of the combined earphones with charging case shown separately to show aspects of the design that are not visible when combined;
FIG. 9 is a front view thereof;
FIG. 10 is a a rear view thereof;
FIG. 11 is a left side view thereof;
FIG. 12 is a right side view thereof;
FIG. 13 is a top plan view thereof;
FIG. 14 is a bottom plan view thereof;
FIG. 15 is a perspective view of the combined earphones with charging case shown in an open configuration; and,
FIG. 16 is an enlarged view of an encircled portion of the combined earphones with charging case labeled 16 in FIG. 2.
The evenly-dashed broken lines depict portions of the combined earphones with charging case that form no part of the claimed design. The dash-dot broken lines encircling portions illustrated in the enlargements form no part of the claimed design,

5. 发明授权

US11353185B2 Electric lighting system and components, and charging and connection mechanisms thereof 有权
公开(公告)号：US11353185B2
公开(公告)日：2022-06-07
申请号：US16967575
申请日：2019-02-27
申请人： Polygroup Limited (Macao Commercial Offshore) , Yifeng Zhang , Shuangyi Lyu
发明人： Victor Hugo Ocegueda Gallaga , Yifeng Zhang , Shuangyi Lyu
IPC分类号： F21S10/04 , F21S9/02 , F21V19/00 , F21V21/096 , F21V23/06 , F21V17/10
摘要： The disclosed systems and methods relate to electric lighting systems and charging and connection mechanisms thereof. In one example, an electric lighting system comprises a charger configured for electrical communication with a power source. The electric lighting system further comprises an electric light source removably couplable to, and configured for electrical communication with, the charger, the electric light source comprising a lighting element. The electric lighting system further comprises a light source holder removably couplable to the electric light source, wherein, when the electric light source is removably coupled to the light source holder, the electric light source and the light source holder share a central axis.

6. 外观设计

USD942390S1 Charging case 有权
公开(公告)号：USD942390S1
公开(公告)日：2022-02-01
申请号：US29786275
申请日：2021-05-31
申请人： Yifeng Zhang
设计人： Yifeng Zhang

7. 发明授权

US08238844B2 Radio transmitter and radio receiver with channel condition assessment 有权
标题翻译：无线电发射机和无线电接收机，具有信道状况评估
公开(公告)号：US08238844B2
公开(公告)日：2012-08-07
申请号：US12473281
申请日：2009-05-28
申请人： Yifeng Zhang , Tracey Lee Chavers , Peiqi Xuan , Qifa Wu
发明人： Yifeng Zhang , Tracey Lee Chavers , Peiqi Xuan , Qifa Wu
IPC分类号： H03C1/62 , H04B17/00 , H04B1/18 , H04W4/00
CPC分类号： H04B1/034 , H03J1/0091
摘要： FM radio transmitter is being widely used in portable devices as a convenient way to output audio contents to ubiquitously available FM radio receivers in cars or homes. However, the signal from the FM radio transmitter may be interfering with the signal being broadcast by an FM radio station. A scan system is incorporated into the FM radio transmitter to quickly and reliably identify a vacant channel for the FM radio transmitter to use. The scan system measures on-channel and out-of-channel signal quality and selects a best channel for transmission based on the measured on-channel and out-of-channel signal quality. The scan system is also incorporated into an FM radio receiver to quickly and reliably tune to a valid channel. The scan system selects the valid channel based on the measured on-channel and out-of-channel signal quality.
摘要翻译： FM无线电发射机正在便携式设备中广泛使用，以便将音频内容输出到汽车或家庭中普遍可用的FM无线电接收机。然而，来自FM无线电发射机的信号可能干扰由FM无线电台广播的信号。扫描系统被并入FM无线电发射机，以快速可靠地识别用于FM无线电发射机使用的空闲信道。扫描系统测量通道和通道外信号质量，并根据测量的通道和通道外信号质量选择最佳传输通道。扫描系统也被并入到FM无线电接收机中以快速可靠地调谐到有效信道。扫描系统基于所测量的在线信道和信道外信号质量来选择有效信道。

8. 发明申请

US20120026407A1 System and Method for Configurable Multi-standard Receiver 审中-公开
标题翻译：可配置多标准接收机的系统和方法
公开(公告)号：US20120026407A1
公开(公告)日：2012-02-02
申请号：US13116532
申请日：2011-05-26
申请人： Yifeng Zhang , Rong Liu , Peiqi Xuan , Xiaodong Jin
发明人： Yifeng Zhang , Rong Liu , Peiqi Xuan , Xiaodong Jin
IPC分类号： H04N5/50 , H04B1/16 , H04B1/06
CPC分类号： H04B1/30 , H04B1/0032 , H04B1/406 , H04N5/46 , H04N21/42638
摘要： A configurable multi-standard receiver. A receiver comprises a mixer, a processing module and an analog to digital converter is disclosed to receive multi-standard radio signals. The processing module includes a first selection switch and first parameter control, where the first selection switch configures the processing module as a complex filter or a real-valued filter and the first parameter control configures the characteristics of the filter. Furthermore, the analog to digital converted is preferably implemented using sigma delta modulation to achieve a desired noise shaping. The sigma delta modulation comprises a second selection switch and second parameter control. The second selection switch configures the sigma delta modulation to function as a unit having a complex loop filter or a unit having real-valued loop filters. The second parameter control configures the characteristics of the loop filter. The settings for the first and second selection switches and the first and second control parameters may be stored in a control register.
摘要翻译：可配置的多标准接收器。接收机包括混频器，处理模块和模数转换器，用于接收多标准无线电信号。处理模块包括第一选择开关和第一参数控制，其中第一选择开关将处理模块配置为复数滤波器或实值滤波器，并且第一参数控制器配置滤波器的特性。此外，优选地，使用Σ-Δ调制来实现模数转换，以实现期望的噪声整形。 Σ-Δ调制包括第二选择开关和第二参数控制。第二选择开关将Σ-Δ调制配置为具有复环路滤波器或具有实值环路滤波器的单元的单元。第二个参数控制配置环路滤波器的特性。第一和第二选择开关以及第一和第二控制参数的设置可以存储在控制寄存器中。

9. 发明申请

US20110151483A1 Mammalian Sweet and Amino Acid Heterodimeric Taste Receptors Comprising T1R3 and T1R1 有权
标题翻译：包含T1R3和T1R1的哺乳动物甜氨基酸异二聚味道感受器
公开(公告)号：US20110151483A1
公开(公告)日：2011-06-23
申请号：US12944515
申请日：2010-11-11
申请人： Charles S. Zuker , Jayaram Chandrashekar , Greg Nelson , Yifeng Zhang , Nicholas J. P. Ryba , Mark A. Hoon
发明人： Charles S. Zuker , Jayaram Chandrashekar , Greg Nelson , Yifeng Zhang , Nicholas J. P. Ryba , Mark A. Hoon
IPC分类号： G01N33/68 , C07K19/00 , C12N5/10
CPC分类号： G01N33/5076 , C07K14/705
摘要： The present invention provides isolated nucleic acid and amino acid sequences of sweet or amino acid taste receptors comprising T1R3 and T1R1, two heterologous G-protein coupled receptor polypeptides from the T1R family of sensory G-protein coupled receptors, antibodies to such receptors, methods of detecting such nucleic acids and receptors, and methods of screening for modulators of sweet and amino acid taste receptors.
摘要翻译：本发明提供了包含T1R3和T1R1的甜或氨基酸味受体的分离的核酸和氨基酸序列，来自感官G蛋白偶联受体的T1R家族的两种异源G蛋白偶联受体多肽，对这种受体的抗体，检测这种核酸和受体，以及筛选甜味和氨基酸味觉受体调节剂的方法。

10. 发明授权

US07507793B2 Mammalian sweet taste receptors t1r3 有权
标题翻译：哺乳动物甜味受体t1r3
公开(公告)号：US07507793B2
公开(公告)日：2009-03-24
申请号：US10645441
申请日：2003-08-20
申请人： Charles S. Zuker , Nicholas J. P. Ryba , Gregory A. Nelson , Mark A. Hoon , Jayaram Chandrashekar , Yifeng Zhang
发明人： Charles S. Zuker , Nicholas J. P. Ryba , Gregory A. Nelson , Mark A. Hoon , Jayaram Chandrashekar , Yifeng Zhang
IPC分类号： C07H21/04 , G01N33/53 , G01N33/567 , C12P21/06 , C07K14/00
CPC分类号： C07K14/705
摘要： The present invention provides isolated nucleic acid and amino acid sequences of sweet taste receptors comprising two heterologous G-protein coupled receptor polypeptides from the T1R family of sensory G-protein coupled receptors, antibodies to such receptors, methods of detecting such nucleic acids and receptors, and methods of screening for modulators of sweet taste receptors.
摘要翻译：本发明提供了包含来自感官G蛋白偶联受体的T1R家族的两种异源G蛋白偶联受体多肽，这种受体的抗体，检测这种核酸和受体的方法的甜味受体的分离的核酸和氨基酸序列，以及筛选甜味受体调节剂的方法。

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