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1. 发明授权

US5504785A Digital receiver for variable symbol rate communications 失效
标题翻译：用于可变符号速率通信的数字接收机
公开(公告)号：US5504785A
公开(公告)日：1996-04-02
申请号：US68560
申请日：1993-05-28
申请人： Donald W. Becker , Fred Harris , James C. Tiernan
发明人： Donald W. Becker , Fred Harris , James C. Tiernan
IPC分类号： H04L27/38 , H04L7/00 , H04L7/02 , H04L7/033 , H04L27/22 , H04L27/06 , H04B1/10
CPC分类号： H04L7/0029
摘要： A digital receiver includes a tuner and a demodulator that obtains the baseband signal carried in a received analog signal. A first sampler operates at a preselected fixed sampling rate asynchronous with the baseband component to produce a first sampler output. A controllable digital filter resamples the first sampler output to produce a filter output with a selectable resampling rate. The resampled output is time-position locked to the baseband signal epochs. The second sampling is processed to ascertain the symbol bit stream of the baseband signal. The controllable filter sampling rate is automatically varied to correspond to the symbol rate of the baseband signal, so that the sampling rate of the first sampler need not change. Initial signal acquisition is achieved by operating the receiver as a frequency spectrum analyzer. A single signal-carrying band is identified and demodulated, and a menu carried on a transport layer is read. This menu provides the center frequencies and bandwidths For all of the signals within an available frequency range, so that the receiver can be reconfigured for any desired signal. Changes in transmission characteristics of the signal can later be accommodated seamlessly by reading a change notice transmitted in the transport layer and reconfiguring the receiver for the new transmission characteristics.
摘要翻译：数字接收机包括调谐器和解调器，其获得在接收的模拟信号中携带的基带信号。第一采样器以与基带分量异步的预选固定采样速率工作，以产生第一采样器输出。可控数字滤波器对第一采样器输出进行采样，以产生具有可选重采样速率的滤波器输出。重采样输出是时基位置锁定到基带信号时代。处理第二采样以确定基带信号的符号位流。可控滤波器采样率自动变化以对应于基带信号的符号率，使得第一采样器的采样率不需要改变。通过操作接收机作为频谱分析仪来实现初始信号采集。识别和解调单个信号携带频带，并且读取在传输层上承载的菜单。该菜单提供中心频率和带宽对于可用频率范围内的所有信号，使得接收机可以重新配置为任何所需的信号。通过读取在传输层中发送的改变通知并重新配置接收机以实现新的传输特性，可以无缝地适应信号的传输特性的变化。

2. 发明申请

US20120248386A1 THERMOELECTRIC MATERIALS HAVING POROSITY 有权
标题翻译：具有多孔性的热电材料
公开(公告)号：US20120248386A1
公开(公告)日：2012-10-04
申请号：US13436521
申请日：2012-03-30
申请人： Joseph P. Heremans , Christopher M. Jaworski , Vladimir Jovovic , Fred Harris
发明人： Joseph P. Heremans , Christopher M. Jaworski , Vladimir Jovovic , Fred Harris
IPC分类号： H01B1/00 , C04B35/64 , H01B1/06
CPC分类号： C04B35/547 , C04B38/0074 , C04B2235/40 , C04B2235/604 , C04B2235/6581 , C04B2235/77 , H01L35/16 , H01L35/34 , C04B38/0054 , C04B38/0061
摘要： A thermoelectric material and a method of making a thermoelectric material are provided. In certain embodiments, the thermoelectric material comprises at least 10 volume percent porosity. In some embodiments, the thermoelectric material has a zT greater than about 1.2 at a temperature of about 375 K. In some embodiments, the thermoelectric material comprises a topological thermoelectric material. In some embodiments, the thermoelectric material comprises a general composition of (Bi1-xSbx)u(Te1-ySey)w, wherein 0≦x≦1, 0≦y≦1, 1.8≦u≦2.2, 2.8≦w≦3.2. In further embodiments, the thermoelectric material includes a compound having at least one group IV element and at least one group VI element. In certain embodiments, the method includes providing a powder comprising a thermoelectric composition, pressing the powder, and sintering the powder to form the thermoelectric material.
摘要翻译：提供热电材料和制造热电材料的方法。在某些实施例中，热电材料包括至少10体积％的孔隙率。在一些实施例中，热电材料在约375K的温度下具有大于约1.2的zT。在一些实施例中，热电材料包括拓扑热电材料。在一些实施方案中，热电材料包括（Bi1-xSbx）u（Te1-ySey）w的一般组成，其中0和nlE; x和nlE; 1,0和nlE; y和nlE; 1.8,1.01; n和nlE; 2.2,2.8＆ 3.2。在另外的实施方案中，热电材料包括具有至少一个IV族元素和至少一个VI族元素的化合物。在某些实施方案中，该方法包括提供包含热电组合物的粉末，压制粉末，并烧结粉末以形成热电材料。

3. 发明授权

US08795545B2 Thermoelectric materials having porosity 有权
标题翻译：具有孔隙度的热电材料
公开(公告)号：US08795545B2
公开(公告)日：2014-08-05
申请号：US13436521
申请日：2012-03-30
申请人： Joseph P. Heremans , Christopher M. Jaworski , Vladimir Jovovic , Fred Harris
发明人： Joseph P. Heremans , Christopher M. Jaworski , Vladimir Jovovic , Fred Harris
IPC分类号： H01L35/16
CPC分类号： C04B35/547 , C04B38/0074 , C04B2235/40 , C04B2235/604 , C04B2235/6581 , C04B2235/77 , H01L35/16 , H01L35/34 , C04B38/0054 , C04B38/0061
摘要： A thermoelectric material and a method of making a thermoelectric material are provided. In certain embodiments, the thermoelectric material comprises at least 10 volume percent porosity. In some embodiments, the thermoelectric material has a zT greater than about 1.2 at a temperature of about 375 K. In some embodiments, the thermoelectric material comprises a topological thermoelectric material. In some embodiments, the thermoelectric material comprises a general composition of (Bi1-xSbx)u(Te1-ySey)w, wherein 0≦x≦1, 0≦y≦1, 1.8≦u≦2.2, 2.8≦w≦3.2. In further embodiments, the thermoelectric material includes a compound having at least one group IV element and at least one group VI element. In certain embodiments, the method includes providing a powder comprising a thermoelectric composition, pressing the powder, and sintering the powder to form the thermoelectric material.
摘要翻译：提供热电材料和制造热电材料的方法。在某些实施例中，热电材料包括至少10体积％的孔隙率。在一些实施例中，热电材料在约375K的温度下具有大于约1.2的zT。在一些实施例中，热电材料包括拓扑热电材料。在一些实施方案中，热电材料包括（Bi1-xSbx）u（Te1-ySey）w的一般组成，其中0和nlE; x和nlE; 1,0和nlE; y和nlE; 1.8,1.01; n和nlE; 2.2,2.8＆ 3.2。在另外的实施方案中，热电材料包括具有至少一个IV族元素和至少一个VI族元素的化合物。在某些实施方案中，该方法包括提供包含热电组合物的粉末，压制粉末，并烧结粉末以形成热电材料。

4. 发明申请

US20050190777A1 Simultaneous multiple channel receiver 有权
标题翻译：同时多通道接收机
公开(公告)号：US20050190777A1
公开(公告)日：2005-09-01
申请号：US10882083
申请日：2004-06-29
申请人： Kendal Hess , Manjit Gill , Donald Eidson , Chi-Ping Nee , Mats Lindstrom , Abraham Krieger , Fred Harris
发明人： Kendal Hess , Manjit Gill , Donald Eidson , Chi-Ping Nee , Mats Lindstrom , Abraham Krieger , Fred Harris
IPC分类号： H04H1/00 , H04H20/28 , H04H40/18 , H04H40/90 , H04L12/28 , H04N5/44
CPC分类号： H04H20/28 , H04H40/18 , H04H40/90 , H04N5/4401 , H04N21/42607 , H04N21/43615 , H04N21/4382 , H04N21/4385 , H04N21/44209
摘要： A simultaneous multiple channel receiver (“SMCR”) for receiving a combined signal having a plurality of carrier signals, where each carrier signal in the plurality of carriers signals corresponds to a frequency channel, and in response, simultaneously producing a plurality of output data stream signals, is disclosed. The SMCR may include a down-converter front-end capable of receiving the combined signal, a plurality of digital signal processors, wherein each digital signal processor of the plurality of digital signal processors is capable of producing an output data stream signal of the plurality of output data stream signals, and a multi-band filter in signal communication with both the down-converter front-end and the plurality of digital signal processors.
摘要翻译：一种用于接收具有多个载波信号的组合信号的同时多信道接收机（“SMCR”），其中多个载波信号中的每个载波信号对应于频率信道，并且作为响应，同时产生多个输出数据流信号。 SMCR可以包括能够接收组合信号的下变频器前端，多个数字信号处理器，其中多个数字信号处理器中的每个数字信号处理器能够产生多个数字信号处理器的输出数据流信号输出数据流信号，以及与下变频器前端和多个数字信号处理器进行信号通信的多频带滤波器。

5. 发明授权

US06307903B1 Low pass digital filter implemented in a modem of a television system 有权
标题翻译：在电视系统的调制解调器中实现的低通数字滤波器
公开(公告)号：US06307903B1
公开(公告)日：2001-10-23
申请号：US09360600
申请日：1999-07-26
申请人： Fred Harris , Vlad Bril
发明人： Fred Harris , Vlad Bril
IPC分类号： H04B110
CPC分类号： H03H17/0288 , H03H17/0273 , H03H17/0277 , H03H17/0657 , H03H17/0664 , H03H17/0671 , H04L25/0232 , H04L25/03038
摘要： A low pass digital filter using cascade polyphase recursive digital signal processing circuit. The filter in the receive direction may contain a re-sampling Hogenauer filter followed by an equalizer filter to correct for its non-flat pass-band spectral response. The output of the spectral equalizer may be processed by a poly-phase re-sampling filter to reduce the sample rate. A clean-up filter may insert two stop-band spectral intervals in the frequency response of the earlier stages. The filter in the receive direction may be implemented by using similar components in the reverse order.
摘要翻译：一种使用级联多相递归数字信号处理电路的低通数字滤波器。在接收方向上的滤波器可以包含一个重新采样Hogenauer滤波器，随后是均衡滤波器，以校正其非平坦的通带频谱响应。频谱均衡器的输出可以由多相重采样滤波器处理以降低采样速率。清理滤波器可以在早期阶段的频率响应中插入两个阻带频谱间隔。接收方向上的滤波器可以通过以相反的顺序使用类似的组件来实现。

6. 发明授权

US07623580B2 Simultaneous multiple channel receiver 有权
标题翻译：同时多通道接收机
公开(公告)号：US07623580B2
公开(公告)日：2009-11-24
申请号：US10882083
申请日：2004-06-29
申请人： Kendal McNaught-Davis Hess , Manjit S. Gill , Donald Brian Eidson , Chi-Ping Nee , Mats Lindstrom , Abraham Krieger , Fred Harris
发明人： Kendal McNaught-Davis Hess , Manjit S. Gill , Donald Brian Eidson , Chi-Ping Nee , Mats Lindstrom , Abraham Krieger , Fred Harris
IPC分类号： H04K1/10
CPC分类号： H04H20/28 , H04H40/18 , H04H40/90 , H04N5/4401 , H04N21/42607 , H04N21/43615 , H04N21/4382 , H04N21/4385 , H04N21/44209
摘要： A simultaneous multiple channel receiver (“SMCR”) for receiving a combined signal having a plurality of carrier signals, where each carrier signal in the plurality of carriers signals corresponds to a frequency channel, and in response, simultaneously producing a plurality of output data stream signals, is disclosed. The SMCR may include a down-converter front-end capable of receiving the combined signal, a plurality of digital signal processors, wherein each digital signal processor of the plurality of digital signal processors is capable of producing an output data stream signal of the plurality of output data stream signals, and a multi-band filter in signal communication with both the down-converter front-end and the plurality of digital signal processors.
摘要翻译：一种用于接收具有多个载波信号的组合信号的同时多信道接收机（“SMCR”），其中多个载波信号中的每个载波信号对应于频率信道，并且作为响应，同时产生多个输出数据流信号。 SMCR可以包括能够接收组合信号的下变频器前端，多个数字信号处理器，其中多个数字信号处理器中的每个数字信号处理器能够产生多个数字信号处理器的输出数据流信号输出数据流信号，以及与下变频器前端和多个数字信号处理器进行信号通信的多频带滤波器。

7. 发明申请

US20060097241A1 Novel class of superlattice materials and superlattice precursors, and method for their manufacture and use 审中-公开
标题翻译：超晶格材料和超晶格前体的新型及其制造和使用方法
公开(公告)号：US20060097241A1
公开(公告)日：2006-05-11
申请号：US10522346
申请日：2003-07-28
申请人： Fred Harris , David Johnson
发明人： Fred Harris , David Johnson
IPC分类号： H01L29/06
CPC分类号： C30B29/68 , H01L35/16 , H01L35/26
摘要： The present disclosure concerns novel materials comprising at least two crystalline materials. In certain embodiments, at least one of the crystalline materials is a diffusion barrier, and at least one material has a high power factor. The disclosed materials are particularly useful as superlattices, particularly thermoelectric superlattices, and superlattice precursors. A method for synthesizing such superlattices is provided. An embodiment of the method includes using Modulated Elemental Reactants (MER) to deposit layers of superlattice precursor materials, followed by annealing to yield bulk superlattice materials.
摘要翻译：本公开涉及包含至少两种结晶材料的新型材料。在某些实施方案中，至少一种结晶材料是扩散阻挡层，并且至少一种材料具有高功率因数。所公开的材料特别适用于超晶格，特别是热电超晶格和超晶格前体。提供了一种合成这种超晶格的方法。该方法的一个实施方案包括使用调制元素反应物（MER）沉积超晶格前体材料层，随后退火以产生块状超晶格材料。

8. 发明授权

US07016444B2 Filter loop structure for synchronization in a mobile communication terminal and a method of using the same 有权
公开(公告)号：US07016444B2
公开(公告)日：2006-03-21
申请号：US10106940
申请日：2002-03-26
申请人： Michael Parr , Sharath Ananth , Long Huynh , Drew Barnett , Fred Harris
发明人： Michael Parr , Sharath Ananth , Long Huynh , Drew Barnett , Fred Harris
IPC分类号： H04L7/00
CPC分类号： H04L7/0054 , H04B7/2125
摘要： Filtering loop and method for maintaining synchronization between a receiver and a transmitter reduces overhead and enables more robust operation. The method includes the step of receiving an error signal corresponding to a synchronization parameter. A first order filter is applied to the error signal such that a residual signal results. The method further provides for compensating the residual signal for drift such that the compensated residual signal estimates a rate of change in the residual signal. By compensating the residual signal for drift, difficulties associated with time lag and signal degradation are obviated.

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