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1. 发明授权

US06498627B1 Use of wideband DTV overlay signals for brevity signaling and public safety 有权
标题翻译：使用宽带数字电视覆盖信号进行简洁信号和公共安全
公开(公告)号：US06498627B1
公开(公告)日：2002-12-24
申请号：US09422441
申请日：1999-10-21
申请人： John Erik Hershey , Mark Lewis Grabb , Kenneth Brakeley Welles, II
发明人： John Erik Hershey , Mark Lewis Grabb , Kenneth Brakeley Welles, II
IPC分类号： H04N521
CPC分类号： H04N21/8146 , H04L27/28 , H04N5/211 , H04N5/44508 , H04N7/08 , H04N21/4432 , H04N21/478 , H04N21/814
摘要： A brevity signaling module for a digital television (DTV) receiver enables the reception of emergency broadcast messages. The overlay signal received at the receiver front end is squared in a squaring loop, producing spectral lines at DC and twice the overlay signal frequency, or 2&ohgr;, where &ohgr;=2&pgr;f and f is the center frequency of the overlay signal. The squared signal is passed through a narrow band filter having a bandwidth sufficient to pass a spectrum containing a plurality of tones 2&ohgr;, 2&ohgr;1, 2&ohgr;2, . . . , 2&ohgr;n, where 2&ohgr;1, 22, . . . , 2&ohgr;n are different frequency tones assigned to different auxiliary functions. The detected tone is used by a control module to determine whether normal multipath processing should be performed or whether this processing should be suppressed and auxiliary functions performed, including turning on the DTV receiver power in order that an emergency broadcast message might be conveyed to persons in the vicinity of the DTV receiver.
摘要翻译：用于数字电视（DTV）接收机的简洁信号模块能够接收紧急广播消息。在接收机前端接收的覆盖信号在平方环中平方，产生DC和两倍叠加信号频率的频谱线，或2omega，其中ω= 2pif，f是叠加信号的中心频率。平方信号通过具有足以通过包含多个音调2omega，2omega1，2omega2的频谱的带宽的窄带滤波器。。。，2omegan，其中2omega1,22。。。，2omegan是分配给不同辅助功能的不同频率音调。检测到的音调由控制模块用于确定是否应执行正常的多路径处理，还是应该抑制该处理和执行辅助功能，包括接通DTV接收机的功率，以便将紧急广播消息传送给 DTV接收机附近。

2. 发明授权

US06417805B1 Three-dimensional channel sounder for DTV receivers 有权
标题翻译：用于DTV接收机的三维通道发声器
公开(公告)号：US06417805B1
公开(公告)日：2002-07-09
申请号：US09422443
申请日：1999-10-21
申请人： John Erik Hershey , Mark Lewis Grabb , Kenneth Brakeley Welles, II
发明人： John Erik Hershey , Mark Lewis Grabb , Kenneth Brakeley Welles, II
IPC分类号： G01S302
CPC分类号： G01S13/003 , H04N5/211 , H04N5/44 , H04N17/00
摘要： A digital television (DTV) receiver is provided with a sounder comprising a wideband transmitter and a plurality of wideband receivers having separately located receiving antennas, so that the sounder is, in effect, a bistatic radar system for any given channel, in order to characterize a significant nearby, indoor reflector. A microprocessor receives the timing information generated by the wideband transmitter impulses and the reflected impulse returns to each of the receiving antennas, and calculates a multipath model representing the three-dimensional location of a significant, nearby scatterer.
摘要翻译：数字电视（DTV）接收机设置有包括宽带发射机和具有单独定位的接收天线的多个宽带接收机的发声器，使得发声器实际上是用于任何给定信道的双基地雷达系统，以便表征一个重要的附近的室内反射器。微处理器接收由宽带发射机脉冲产生的定时信息，并且反射的脉冲返回到每个接收天线，并且计算表示重要的附近散射体的三维位置的多径模型。

3. 发明授权

US06538704B1 NTSC tuner to improve ATSC channel acquisition and reception 有权
标题翻译： NTSC调谐器改善ATSC频道的采集和接收
公开(公告)号：US06538704B1
公开(公告)日：2003-03-25
申请号：US09422444
申请日：1999-10-21
申请人： Mark Lewis Grabb , Kenneth Brakeley Welles, II , John Erik Hershey
发明人： Mark Lewis Grabb , Kenneth Brakeley Welles, II , John Erik Hershey
IPC分类号： H04N544
CPC分类号： H04N5/4401 , H04N5/211 , H04N5/46 , H04N21/42638 , H04N21/4384
摘要： Reduction in the time required for an Advanced Television Standards Committee (ATSC) digital television tuner to equalize, converge, and acquire a digital television signal suitable for viewing, wherein early model ATSC tuners also include a National Television Standards Committee (NTSC) analog tuner, is achieved by using a microprocessor to control use of the NTSC tuner to scan television channels. A channel measurement module converts the scanned analog signal to a digital signal, and the equalization coefficients for the resultant digital signal are stored in memory. The equalization coefficients stored in memory are then accessed and utilized to tune in new channels on the ATSC tuner. The amount of time necessary for the ATSC tuner to tune in a new channel is thus reduced. When the ATSC tuner is in use, the equalization coefficient data stored in memory are periodically updated.
摘要翻译：降低高级电视标准委员会（ATSC）数字电视调谐器平衡，收敛和获取适合观看的数字电视信号所需的时间，其中早期模式ATSC调谐器还包括国家电视标准委员会（NTSC）模拟调谐器，通过使用微处理器来控制NTSC调谐器的使用来扫描电视频道来实现。通道测量模块将扫描的模拟信号转换为数字信号，并将所得数字信号的均衡系数存储在存储器中。存储在存储器中的均衡系数然后被访问并用于调谐ATSC调谐器上的新通道。因此，ATSC调谐器调谐到新频道所需的时间量减少。当使用ATSC调谐器时，周期性地更新存储在存储器中的均衡系数数据。

4. 发明授权

US06459741B1 Implementation of N-VSB training sequences in N-squared QAM receiver structures 有权
标题翻译：在N平方QAM接收机结构中实现N-VSB训练序列
公开(公告)号：US06459741B1
公开(公告)日：2002-10-01
申请号：US09422450
申请日：1999-10-21
申请人： Mark Lewis Grabb , John Erik Hershey , Kenneth Brakeley Welles, II
发明人： Mark Lewis Grabb , John Erik Hershey , Kenneth Brakeley Welles, II
IPC分类号： H04L512
CPC分类号： H04L27/02 , H04L27/34 , H04N5/211 , H04N5/4401 , H04N5/455
摘要： Training sequences designed for N-VSB systems within the embodiment of an N-squared QAM receiver facilitate designing 8-VSB receivers using methodologies of 64-QAM receiver design. A receiver designed using such methodologies converts the received modulation into a signal which can be accepted by circuitry for decoding 64 level quadrature-amplitude modulation (64-QAM) signals. This process provides a better signal to noise ratio reception than the conventional I-channel only decoding circuitry of most 8-VSB receivers. This process also employs training and equalizing algorithms developed for 64-QAM receivers which are superior to equivalent algorithms for 8-VSB receivers. The invention can be generalized to N-VSB conversion into M-QAM where M=N2. Adaptive equalization algorithms for 8-VSB transmissions implemented within the context of the 64 QAM receiver are superior to present single-channel VSP processing receivers. Present 64 QAM equalization strategies can be employed when receiving an 8-VSB waveform, given removal of the pilot tone and time offset, except when employing a training sequence. Modifications to the 8-VSB training sequence specification are employed for operation within a 64 QAM receiver design.
摘要翻译：在N平方QAM接收机的实施例中为N-VSB系统设计的训练序列有助于使用64-QAM接收机设计的方法来设计8-VSB接收机。使用这种方法设计的接收机将接收到的调制转换成可由用于解码64级正交幅度调制（64-QAM）信号的电路接受的信号。该过程提供比大多数8-VSB接收机的常规I信道唯一解码电路更好的信噪比接收。该过程还采用为64-QAM接收机开发的训练和均衡算法，优于8-VSB接收机的等效算法。本发明可以推广到N-VSB转换为M-QAM，其中M = N2。在64QAM接收机的上下文中实现的用于8-VSB传输的自适应均衡算法优于目前的单信道VSP处理接收机。当使用训练序列时，除了导频和时间偏移之外，当接收到8-VSB波形时，可以采用64个QAM均衡策略。采用对8-VSB训练序列规范的修改用于在64QAM接收机设计中的操作。

5. 发明授权

US06437832B1 Mitigation of multipath using ultra wideband DTV overlay signal 有权
标题翻译：使用超宽带DTV覆盖信号减少多路径
公开(公告)号：US06437832B1
公开(公告)日：2002-08-20
申请号：US09422449
申请日：1999-10-21
申请人： Mark Lewis Grabb , John Erik Hershey , Kenneth Brakeley Welles, II
发明人： Mark Lewis Grabb , John Erik Hershey , Kenneth Brakeley Welles, II
IPC分类号： H04N1700
CPC分类号： H04N5/211
摘要： DTV broadcast transmission is provided with a ultra wideband overlay signal which is used by suitably equipped DTV receivers to dynamically estimate the channel and allow expeditious and effective mitigation of changing multipath conditions. Periodic correlation peaks are detected in the received overlay signal, and the timing and magnitude of other peaks in the received overlay signal are used to mitigate multipath in the received signal. A DTV receiver that is not equipped to process the overlay transmission will not be significantly affected by the overlay signal.
摘要翻译： DTV广播传输被提供有超宽带覆盖信号，其被适当配备的DTV接收机使用以动态估计信道并且允许快速有效地减轻改变的多径条件。在接收到的覆盖信号中检测到周期相关峰值，并且使用接收到的覆盖信号中的其他峰值的定时和幅度来缓解接收信号中的多径。没有配备处理覆盖传输的DTV接收机不会受覆盖信号的显着影响。

6. 发明授权

US06577353B1 Optimization of television reception by selecting among or combining multiple antenna inputs 有权
标题翻译：通过选择或组合多个天线输入来优化电视接收
公开(公告)号：US06577353B1
公开(公告)日：2003-06-10
申请号：US09422445
申请日：1999-10-21
申请人： Kenneth Brakeley Welles, II , Mark Lewis Grabb , John Erik Hershey
发明人： Kenneth Brakeley Welles, II , Mark Lewis Grabb , John Erik Hershey
IPC分类号： H04N500
CPC分类号： H04B7/0871 , H04B7/0814 , H04N5/211 , H04N5/4401 , H04N5/46 , H04N21/426 , H04N21/42638 , H04N21/44209
摘要： In a system for optimizing television reception by a television receiver receiving a diversity of input signals from a plurality of antennas, one of a plurality of combiners and television tuners selects the strongest combination of input signals for viewing and another scans the various combinations of input signals searching for a combination significantly stronger than the combination being viewed. A plurality of multiplexers selects the output signal of one combiner and transmits the selected signal to one of the tuners. A signal evaluation module evaluates the strength of the combinations of input signals and compares the strength of each combination of input signals to the strength of the viewing signal, looking for a superior signal. A control processor controls the combination of input signals selected by the combiners and the combiner output signal selected by the multiplexers. The control processor converts any superior signal found into the signal being viewed, at which time the process starts over and repeats.
摘要翻译：在用于通过接收来自多个天线的多种输入信号的电视接收机优化电视接收的系统中，多个组合器和电视调谐器中的一个选择用于观看的输入信号的最强组合，并且另外扫描输入信号的各种组合寻找一种显着强于组合的组合。多个复用器选择一个组合器的输出信号，并将所选择的信号发送到调谐器之一。信号评估模块评估输入信号的组合的强度，并将输入信号的每个组合的强度与观看信号的强度进行比较，寻找优越的信号。控制处理器控制由组合器选择的输入信号和由多路复用器选择的组合器输出信号的组合。控制处理器将发现的任何优秀信号转换成正在观看的信号，此时该过程开始并重复。

7. 发明授权

US06417890B1 Modulation of pilot tone amplitude in DTV broadcast for faster channel acquisition 有权
标题翻译：调制DTV广播中的导频音振幅，以实现更快的信道采集
公开(公告)号：US06417890B1
公开(公告)日：2002-07-09
申请号：US09422442
申请日：1999-10-21
申请人： Kenneth Brakeley Welles, II , John Erik Hershey , Mark Lewis Grabb
发明人： Kenneth Brakeley Welles, II , John Erik Hershey , Mark Lewis Grabb
IPC分类号： H04N521
CPC分类号： H04N5/211
摘要： The existing ATSC broadcast standard is modified to improve both the speed at which the periodically transmitted training sequence is found after channel selection by a viewer and the speed at which synchronization is achieved to a continuous wideband overlay signal used for equalization of the decoded signal. The modification involves slight amplitude modulation of the pilot signal in a manner synchronized with the transmission of the training sequences. The modulation of the pilot signal is sufficiently small to be ignored by existing ATSC receivers; that is, it is backwards compatible. Properly equipped receivers can detect, more quickly than receivers not so equipped, transmission of the training sequence by decoding this pilot signal modulation, thereby being capable of providing a decoded image to a viewer more quickly after a channel change than a receiver not so equipped. Additionally, the time required to synchronize to a continuous wideband overlay signal which has been provided for equalization is reduced, as by varying the modulation slightly to correspond to the start of a particular phase portion of the periodic sequence such as an m-sequence used for the overlay.
摘要翻译：修改现有的ATSC广播标准，以改善观众频道选择之后发现周期性发送的训练序列的速度和实现同步的速度到用于解码信号的均衡的连续宽带覆盖信号。该修改涉及以与训练序列的传输同步的方式对导频信号进行轻微的幅度调制。导频信号的调制足够小，可以被现有的ATSC接收机忽略; 也就是说，它是向后兼容的。正确配备的接收机可以比没有配备的接收机更快地检测到通过解码该导频信号调制的训练序列的传输，从而能够在频道改变之后更快地向观看者提供解码图像，而不是没有配备的接收机。此外，与已经提供用于均衡的连续宽带覆盖信号同步所需的时间被减少，如通过稍微改变调制以对应于周期性序列的特定相位部分的开始，例如用于覆盖层。

8. 发明授权

US06539062B1 Pilot signal control for digital television DTV transmission 失效
标题翻译：数字电视数字电视传输的先导信号控制
公开(公告)号：US06539062B1
公开(公告)日：2003-03-25
申请号：US09422440
申请日：1999-10-21
申请人： Mark Lewis Grabb , John Erik Hershey , Kenneth Brakeley Welles, II
发明人： Mark Lewis Grabb , John Erik Hershey , Kenneth Brakeley Welles, II
IPC分类号： H04L512
CPC分类号： H04N21/4382 , H04L27/02 , H04N5/4401 , H04N21/2383
摘要： An Advanced Television Standards Committee (ATSC)-compliant pilot tone is generated within an 8-VSB (eight level vestigial sideband) transmission in order to enable Quadrature Amplitude Modulation (QAM) receiver designs to more efficiently process the transmitted/received 8-VSB signal. The method and apparatus also efficiently removes the pilot tone before using conventional QAM demodulator equipment for directly demodulating the 8-VSB signal.
摘要翻译：为了使正交幅度调制（QAM）接收机设计能够更有效地处理发送/接收的8-VSB信号，在8-VSB（八电平残留边带）传输中产生符合先进电视标准委员会（ATSC）标准的导频音。在使用常规QAM解调器设备直接解调8-VSB信号之前，该方法和装置还有效地去除导频音。

9. 发明授权

US06292518B1 Use of 64-QAM circuitry for receiving and decoding 8-VSB signals 有权
标题翻译：使用64-QAM电路来接收和解码8-VSB信号
公开(公告)号：US06292518B1
公开(公告)日：2001-09-18
申请号：US09422446
申请日：1999-10-21
申请人： Mark Lewis Grabb , Kenneth Brakeley Welles, II , John Erik Hershey
发明人： Mark Lewis Grabb , Kenneth Brakeley Welles, II , John Erik Hershey
IPC分类号： H03D124
CPC分类号： H04L27/38 , H04L27/02
摘要： An N-VSB (vestigial sideband) modulation signal is converted into an M-QAM (quadrature amplitude modulation) signal, where M=N2, by shifting the symbol rate frequency of a received N-VSB modulation signal to center the waveform spectrum about zero Hertz prior to complex demodulation so that data symbols will alternately appear on demodulated I and Q channels. A pilot tone of the received N-VSB modulation signal is removed to eliminate any bias in the both I and Q channels. Symbol timing between I and Q channels is offset, and quadrature amplitude demodulation of the I and Q channel signals generate alternating I and Q channel data symbols. Alternating inversion of the alternating I and Q channel data symbols recovers the N-VSB symbol data.
摘要翻译： N-VSB（残留边带）调制信号通过移位接收的N-VSB调制信号的符号速率频率将波形频谱居中于零，从而转换为M = N M的M-QAM（正交幅度调制）信号复合解调之前的Hertz，使得数据符号将交替出现在解调的I和Q信道上。去除所接收的N-VSB调制信号的导频音以消除I和Q信道中的任何偏置。 I和Q通道之间的符号定时偏移，I和Q通道信号的正交幅度解调产生交替的I和Q通道数据符号。交替的I和Q通道数据符号的交替反转恢复N-VSB符号数据。

10. 发明授权

US08058802B2 Thermal management article and method 有权
标题翻译：热管理文章和方法
公开(公告)号：US08058802B2
公开(公告)日：2011-11-15
申请号：US11863709
申请日：2007-09-28
申请人： Yun Li , Mark Lewis Grabb , John Erik Hershey , Jian Zhang , Hua Xia
发明人： Yun Li , Mark Lewis Grabb , John Erik Hershey , Jian Zhang , Hua Xia
IPC分类号： H01J1/62 , H01J63/04
CPC分类号： H05K7/20963 , Y10T428/249953 , Y10T428/265 , Y10T428/31504
摘要： An article includes a display layer having an outward facing surface and an inward facing surface. The display layer includes a light-emitting device that generates heat and light during use. A thermal transport layer may be secured to the display layer. The thermal transport layer may include a thermally conductive material that can transport heat generated by the light-emitting device away from the light-emitting device.
摘要翻译：一种物品包括具有向外表面和向内表面的显示层。显示层包括在使用期间产生热和光的发光装置。热传输层可以固定到显示层。热传输层可以包括可将由发光器件产生的热量远离发光器件传导的导热材料。

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