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1. 发明授权

US07852868B2 Method and apparatus for establishing circuit connections over local area networks with frequency selective impairments 有权
标题翻译：用于通过具有频率选择性障碍的局域网建立电路连接的方法和装置
公开(公告)号：US07852868B2
公开(公告)日：2010-12-14
申请号：US12265391
申请日：2008-11-05
申请人： Steven H. Gardner , James E. Petranovich
发明人： Steven H. Gardner , James E. Petranovich
IPC分类号： H04J4/00
CPC分类号： H04N1/00209 , H04N1/00204 , H04N2201/0034
摘要： A method for establishing a circuit connection over a network. Determining a channel quality profile of a medium connecting a source node and a destination node. Determining a throughput required to support a data rate requirement of an application that sources data. Determining a modulation type and modulation density at one or more frequency according to the channel quality profile. Selecting one or more of a set of frequencies, modulation types and modulation densities to support the throughput. Communicating the selection to nodes attached to the medium.
摘要翻译：一种通过网络建立电路连接的方法。确定连接源节点和目的节点的介质的信道质量分布。确定支持源数据应用程序的数据速率要求所需的吞吐量。根据信道质量曲线确定一个或多个频率的调制类型和调制密度。选择一组频率，调制类型和调制密度中的一个或多个以支持吞吐量。将选择与连接到介质的节点进行通信。

2. 发明申请

US20090273671A1 METHOD AND APPARATUS FOR ENCAPSULATING DIGITAL AERIAL SURVEILLANCE VIDEO ON ANALOG VIDEO SIGNAL 审中-公开
标题翻译：封闭数字视频监控视频信号的方法与装置
公开(公告)号：US20090273671A1
公开(公告)日：2009-11-05
申请号：US12372527
申请日：2009-02-17
申请人： Steven H. Gardner
发明人： Steven H. Gardner
IPC分类号： H04N7/18 , H03M1/12
CPC分类号： H04N7/18
摘要： An aerial surveillance apparatus for processing an analog video signal is described. The aerial surveillance apparatus includes a first input configured to receive an analog video signal from a video camera, a processor coupled with the analog video signal and configured to filter and digitize the analog video signal to form a de-emphasized digital signal, an output configured to couple to an FM video transmitter and to communicate the de-emphasized digital signal to the FM video transmitter. The filtering of the processor decreases amplitudes of higher frequencies within a band of frequencies more than amplitudes of lower frequencies within the band of frequencies, and the FM video transmitter filters the de-emphasized digital signal using a pre-emphasis filter that counteracts the filtering of the de-emphasis filter. The aerial surveillance apparatus may further include a second input configured to receive a digital data signal, the processor combines the digitized video signal and the digital data signal prior to the filtering to form a combined signal, and the processor filters the combined signal to form the de-emphasized digital signal.
摘要翻译：描述了一种用于处理模拟视频信号的空中监视装置。空中监视装置包括被配置为从摄像机接收模拟视频信号的第一输入端，与模拟视频信号耦合的处理器，并配置为对模拟视频信号进行滤波和数字化以形成去加重的数字信号，输出配置耦合到FM视频发射器，并将去加重的数字信号传送到FM视频发射器。处理器的滤波器降低频率范围内的频率范围内的频率的幅度大于频带内的较低频率的幅度，并且FM视频发射器使用预加重滤波器来滤除去加重的数字信号，该预加重滤波器抵消滤波去加重滤镜。空中监视装置还可以包括被配置为接收数字数据信号的第二输入，处理器在滤波之前组合数字化视频信号和数字数据信号以形成组合信号，并且处理器对组合信号进行滤波以形成去加重数字信号。

3. 发明授权

US6038455A Reverse channel reuse scheme in a time shared cellular communication system 失效
标题翻译：在时间共享的蜂窝通信系统中的反向信道重用方案
公开(公告)号：US6038455A
公开(公告)日：2000-03-14
申请号：US705509
申请日：1996-08-29
申请人： Steven H. Gardner , Sheldon L. Gilbert , Carl Thomas Hardin , James E. Petranovich
发明人： Steven H. Gardner , Sheldon L. Gilbert , Carl Thomas Hardin , James E. Petranovich
IPC分类号： H04B7/26 , H04L12/56 , H04W4/06 , H04W16/02 , H04W16/12 , H04W16/14 , H04W56/00 , H04W68/00 , H04W72/04 , H04W74/04 , H04W84/04 , H04Q7/20 , H04J3/00
CPC分类号： H04W16/12 , H04B7/2615 , H04B7/265 , H04B7/2693 , H04W16/02 , H04W16/14 , H04W28/16 , H04W4/06 , H04W56/00 , H04W68/00 , H04W72/0446 , H04W72/082 , H04W74/04 , H04W84/042
摘要： A time sharing method and apparatus for frequency reuse in cellular communication systems. Frequency reuse is enhanced by synchronizing cell transmit/receive base stations in a cellular system to a common time base, and then sharing the available frequencies via allocated time slots. Cells using the same frequency that may interfere with each other are activated only during selected time intervals while same-frequency cells nearby are deactivated. The deactivated cells are then in turn activated while previously activated same-frequency cells nearby are deactivated. The frequency time slots may be of equal length, or longer time slots may be allocated to cells having higher usage rates, as determined in any of a number of ways. The time slots may be mutually exclusive, or may overlap. The time sharing technique of the present invention allows design of cell systems with many reuse patterns. Several particular cell reuse patterns are disclosed that provide good operational characteristics and low co-channel interference. The invention allows the use of a small number of cellular frequencies in a conventional cellular system without significant alteration of the existing system, and is particularly useful in two-way cellular paging systems. Improved reverse link data throughput is achieved via reuse of the reverse frequency channels.
摘要翻译：用于蜂窝通信系统中频率重用的时间分配方法和装置。通过将蜂窝系统中的小区发射/接收基站同步到公共时基，然后通过分配的时隙共享可用频率来增强频率重用。使用可能相互干扰的相同频率的单元仅在选定的时间间隔内被激活，同时附近的相同频率的单元被去激活。然后，激活的激活单元然后被激活，而附近的先前激活的相同频率的单元被去激活。频率时隙可以具有相同的长度，或者可以以多种方式中的任一种来确定具有较高使用率的小区的较长时隙。时隙可能是相互排斥的，或者可能重叠。本发明的时间共享技术允许设计具有许多重用模式的小区系统。公开了提供良好的操作特性和低同信道干扰的几种特定的小区重用模式。本发明允许在常规蜂窝系统中使用少量的蜂窝频率，而不会对现有系统进行显着改变，并且在双向蜂窝寻呼系统中特别有用。改进的反向链路数据吞吐量通过反向频率信道的重用来实现。

4. 发明授权

US06188903B1 Method and apparatus for frequency reuse in cellular communication systems 有权
标题翻译：蜂窝通信系统中频率重用的方法和装置
公开(公告)号：US06188903B1
公开(公告)日：2001-02-13
申请号：US09422032
申请日：1999-10-20
申请人： Steven H. Gardner , Sheldon L. Gilbert , Carl Thomas Hardin , James E. Petranovich
发明人： Steven H. Gardner , Sheldon L. Gilbert , Carl Thomas Hardin , James E. Petranovich
IPC分类号： H04Q720
CPC分类号： H04W16/12 , H04B7/2615 , H04B7/265 , H04B7/2693 , H04W4/06 , H04W16/02 , H04W16/14 , H04W28/16 , H04W56/00 , H04W68/00 , H04W72/0446 , H04W72/082 , H04W74/04 , H04W84/042
摘要： A time sharing method and apparatus for frequency reuse in cellular communication systems. Frequency reuse is enhanced by synchronizing cell transmit/receive base stations in a cellular system to a common time base, and then sharing the available frequencies via allocated time slots. Cells using the same frequency that may interfere with each other are activated only during selected time intervals while same-frequency cells nearby are deactivated. The deactivated cells are then in turn activated while previously activated same-frequency cells nearby are deactivated. The frequency time slots may be of equal length, or longer time slots may be allocated to cells having higher usage rates, as determined in any of a number of ways. The time slots may be mutually exclusive, or may overlap. The time sharing technique of the present invention allows design of cell systems with many reuse patterns. Several particular cell reuse patterns are disclosed that provide good operational characteristics and low co-channel interference. The invention allows the use of a small number of cellular frequencies in a conventional cellular system without significant alteration of the existing system, and is particularly useful in two-way cellular paging systems. Improved reverse link data throughput is achieved via reuse of the reverse frequency channels.
摘要翻译：用于蜂窝通信系统中频率重用的时间分配方法和装置。通过将蜂窝系统中的小区发射/接收基站同步到公共时基，然后通过分配的时隙共享可用频率来增强频率重用。使用可能相互干扰的相同频率的单元仅在选定的时间间隔内被激活，同时附近的相同频率的单元被去激活。然后，激活的激活单元然后被激活，而附近的先前激活的相同频率的单元被去激活。频率时隙可以具有相同的长度，或者可以以多种方式中的任一种来确定具有较高使用率的小区的较长时隙。时隙可能是相互排斥的，或者可能重叠。本发明的时间共享技术允许设计具有许多重用模式的小区系统。公开了提供良好的操作特性和低同信道干扰的几种特定的小区重用模式。本发明允许在常规蜂窝系统中使用少量的蜂窝频率，而不会对现有系统进行显着改变，并且在双向蜂窝寻呼系统中特别有用。改进的反向链路数据吞吐量通过反向频率信道的重用来实现。

5. 发明授权

US6122527A Cellular digital packet data mobile data base station 失效
标题翻译：蜂窝数字分组数据移动数据基站
公开(公告)号：US6122527A
公开(公告)日：2000-09-19
申请号：US587685
申请日：1996-01-17
申请人： Mark T. Robinson , Steven H. Gardner , Matt Wong , Seton P. Kasmir , Kumar Balachandran , Sue Graham , Gail Schjelderup , Roy Franklin Quick, Jr.
发明人： Mark T. Robinson , Steven H. Gardner , Matt Wong , Seton P. Kasmir , Kumar Balachandran , Sue Graham , Gail Schjelderup , Roy Franklin Quick, Jr.
IPC分类号： H04W48/08 , H04W72/02 , H04W88/10 , H04Q7/30
CPC分类号： H04W88/10 , H04W48/08 , H04W72/02
摘要： A cellular digital packet data (CDPD) system includes a mobile data base station (MDBS) configured to interface easily with an advanced mobile phone system (AMPS). The elements of the MDBS are arranged on modules and the functionality of the MDBS is divided among the modules to facilitate flexibility, compactness and quick expansion of the MDBS. To further facilitate compactness, the MDBS includes a transceiver/modem board which uses a single chip to carry out delta-sigma modulation. In order to maintain the integrity of CDPD transmission, a channel hopping scheme is used based upon avoidance of AMPS channel use. A distinctive protocol is used to encapsulate control/query/response data for transmission throughout the CDPD system. This protocol also facilitates easy control of each MDBS throughout the system.
摘要翻译：蜂窝数字分组数据（CDPD）系统包括配置成与高级移动电话系统（AMPS）轻松接口的移动数据基站（MDBS）。 MDBS的元素安排在模块上，MDBS的功能在模块之间划分，以促进MDBS的灵活性，紧凑性和快速扩展。为了进一步促进紧凑性，MDBS包括使用单个芯片进行Δ-Σ调制的收发机/调制解调器板。为了保持CDPD传输的完整性，基于避免AMPS信道使用，使用信道跳频方案。一种独特的协议用于封装控制/查询/响应数据，以便在整个CDPD系统中进行传输。该协议还有助于在整个系统中容易地控制每个MDBS。

6. 发明授权

US5819182A Method and apparatus for improving receiver performance in a land mobile communications system 失效
标题翻译：用于改善陆地移动通信系统中的接收机性能的方法和装置
公开(公告)号：US5819182A
公开(公告)日：1998-10-06
申请号：US556350
申请日：1995-11-13
申请人： Steven H. Gardner , Carl Thomas Hardin
发明人： Steven H. Gardner , Carl Thomas Hardin
IPC分类号： H04B7/04 , H04L1/20 , H04Q7/30
CPC分类号： H04L1/206 , H04B7/0491
摘要： A method and apparatus for improving the signal-to-interference ratio and signal-to-noise ratio of a signal transmitted on a reverse channel from a mobile transmitter in a land mobile communications system by using a sectored cell in which the same channel is received by each sector of the cell. Each directional antenna is coupled to a unique associated receiver tuned to the same frequency or frequencies as the other receivers associated with each other directional antenna within the same sectored cell. Depending upon the location of the mobile end system with respect to the antenna pattern of each directional antenna, each signal will typically be redundantly received over more than one, but less than all, of the antennas. In accordance with the present invention, only one of the received signals is to be communicated from the base station to an intermediate system and all others are to be discarded. If multiple copies of the same message are received, then the control computer couples only one such copy to the intermediate system and discards each of the others.
摘要翻译：一种用于通过使用其中接收相同信道的分区小区来改善在陆地移动通信系统中的来自移动发射机的反向信道上发射的信号的信号干扰比和信噪比的方法和装置由单元的每个扇区。每个定向天线耦合到独特的相关联的接收机，其被调谐到与在相同扇区中的每个其他定向天线相关联的其它接收机相同的频率或频率。取决于移动终端系统相对于每个定向天线的天线方向图的位置，每个信号通常将在多于一个天线上而不是全部的天线中被冗余地接收。根据本发明，只有一个接收到的信号要从基站传送到中间系统，而其他信号都被丢弃。如果接收到相同消息的多个副本，则控制计算机将仅一个这样的副本耦合到中间系统并丢弃其他每个副本。

7. 发明授权

US5544222A Cellular digtial packet data mobile data base station 失效
标题翻译：蜂窝数字分组数据移动数据基站
公开(公告)号：US5544222A
公开(公告)日：1996-08-06
申请号：US152005
申请日：1993-11-12
申请人： Mark T. Robinson , Steven H. Gardner , Matt Wong , Seton P. Kasmir , Kumar Balachandran , Sue Graham , Gail Schjelderup , Roy F. Quick, Jr.
发明人： Mark T. Robinson , Steven H. Gardner , Matt Wong , Seton P. Kasmir , Kumar Balachandran , Sue Graham , Gail Schjelderup , Roy F. Quick, Jr.
IPC分类号： H04W48/08 , H04W72/02 , H04W88/10 , H04Q7/30 , H04Q7/20
CPC分类号： H04W88/10 , H04W48/08 , H04W72/02
摘要： A cellular digital packet data (CDPD) system includes a mobile data base station (MDBS) configured to interface easily with an advanced mobile phone system (AMPS). The elements of the MDBS are arranged on modules and the functionality of the MDBS is divided among the modules to facilitate flexibility, compactness and quick expansion of the MDBS. To further facilitate compactness, the MDBS includes a transceiver/modem board which uses a single chip to carry out delta-sigma modulation. In order to maintain the integrity of CDPD transmission, a channel hopping scheme is used based upon avoidance of AMPS channel use. A distinctive protocol is used to encapsulate control/query/response data for transmission throughout the CDPD system. This protocol also facilitates easy control of each MDBS throughout the system.
摘要翻译：蜂窝数字分组数据（CDPD）系统包括配置成与高级移动电话系统（AMPS）轻松接口的移动数据基站（MDBS）。 MDBS的元素安排在模块上，MDBS的功能在模块之间划分，以促进MDBS的灵活性，紧凑性和快速扩展。为了进一步促进紧凑性，MDBS包括使用单个芯片进行Δ-Σ调制的收发机/调制解调器板。为了保持CDPD传输的完整性，基于避免AMPS信道使用，使用信道跳频方案。一种独特的协议用于封装控制/查询/响应数据，以便在整个CDPD系统中进行传输。该协议还有助于在整个系统中容易地控制每个MDBS。

8. 发明授权

US06370135B1 Continuous CDPD base station and method of facilitating efficient data transfer 失效
标题翻译：连续CDPD基站和有效数据传输的方法
公开(公告)号：US06370135B1
公开(公告)日：2002-04-09
申请号：US08487044
申请日：1995-06-07
申请人： Steven H. Gardner
发明人： Steven H. Gardner
IPC分类号： H04L1264
CPC分类号： H04W88/10 , H04L12/6418 , H04L2012/6421 , H04L2012/6456 , H04L2012/6472 , H04L2012/6475 , H04W92/02
摘要： A multi-mode communication system, including controller, base stations and subscriber stations, where the communication system has the capability of operating either in a packet-switched mode or a circuit-switched mode. The packet-switched mode of operation complies with the existing Cellular Digital Packet Data (CDPD) standard with respect to modulation and higher level protocol, and is designated continuous CDPD mode. This mode of operation is highly cost effective for transfers of relatively small amounts of data. For larger data transfers, the more cost-effective continuous CDPD mode is used. Thus, using this mode, the system is capable of providing superior data rate performance over a vastly greater coverage area than existing circuit-switched modems. Requests for access to continuous CDPD channels are initiated at subscriber stations. This initiation can result from manual intervention by the user of the subscriber station, or can be automatic in response to the amount of data to be transferred, as well as comprising structure for each mode of data transfer used by the service provider.
摘要翻译：一种多模式通信系统，包括控制器，基站和用户站，其中通信系统具有以分组交换模式或电路交换模式操作的能力。分组交换操作模式符合关于调制和更高级别协议的现有蜂窝数字分组数据（CDPD）标准，并被指定为连续CDPD模式。这种操作模式在传输相对较少量的数据方面具有高成本效益。对于更大的数据传输，使用更具成本效益的连续CDPD模式。因此，使用该模式，该系统能够在比现有的电路交换调制解调器大得多的覆盖区域上提供优异的数据速率性能。在用户站启动对连续CDPD信道的访问请求。该启动可以由用户站的用户的手动干预产生，或者可以响应于要传送的数据的量自动地进行，并且包括由服务提供商使用的每种数据传送模式的结构。

9. 发明授权

US5627499A Digital modulator and upconverter having single-bit delta-sigma data converters 失效
标题翻译：具有单位delta-sigma数据转换器的数字调制器和上变频器
公开(公告)号：US5627499A
公开(公告)日：1997-05-06
申请号：US542808
申请日：1995-10-13
申请人： Steven H. Gardner
发明人： Steven H. Gardner
IPC分类号： H04L27/20 , H03C3/00 , H04L27/12
CPC分类号： H04L27/2092 , H03F2200/331
摘要： A method and apparatus for digitally phase modulating and frequency upconverting communication signals to an intermediate frequency, producing the IF output with only digital hardware and without the use of digital to analog converters, analog multipliers (mixers) or power combiners. A digital phase modulator provides an in-phase and a quadrature output, each of which is coupled to one input of a relatively simple multi-bit to single-bit delta-sigma data converter. The output from the converter is a pair of single-bit digital output signals. Each such single-bit output is inverted and both the inverted single-bit output and the non-inverted single-bit output of both the in-phase and the quadrature outputs are coupled to a 4:1 multiplexer. One of these four inputs is then selected by a modulo-4 counter. The modulo-4 counter is incremented at a rate that is selected based upon the desired IF frequency.
摘要翻译：用于数字相位调制和将通信信号上变频到中频的方法和装置，仅产生数字硬件的IF输出，而不使用数模转换器，模拟乘法器（混频器）或功率组合器。数字相位调制器提供同相和正交输出，每个输出耦合到相对简单的多位到单位delta-sigma数据转换器的一个输入。转换器的输出是一对单位数字输出信号。每个这样的单比特输出被反相，并且同相和正交输出的反相单比特输出和非反相单比特输出都被耦合到4:1多路复用器。这四个输入中的一个由模4计数器选择。模-4计数器以基于期望的IF频率选择的速率递增。

10. 发明授权

US5517530A Method and apparatus for dual demodulation of mobile channel signals 失效
标题翻译：移动通道信号双重解调的方法和装置
公开(公告)号：US5517530A
公开(公告)日：1996-05-14
申请号：US494712
申请日：1995-06-26
申请人： Steven H. Gardner
发明人： Steven H. Gardner
IPC分类号： H04L27/22 , H04L27/233
CPC分类号： H04L27/22 , H04L27/2332
摘要： Selectable demodulation means within a given receiver to demodulate signals potentially subjected to many different types of degradations as typically encountered in mobile communications systems, and to select the best result of provide significant performance improvement is disclosed. In accordance with the method, when an RF signal is received it is sampled and the samples are demodulated. Demodulation is performed using both coherent and non-coherent schemes with the preferred scheme selected according to the quality of performance of each demodulator. Coherent demodulation can provide better performance when the signal is subjected to significant path loss but little fading. Non-coherent demodulation can provide better performance when the signal is subjected to less path loss but significant fading. Details of the method are disclosed.
摘要翻译：在给定的接收机内可选择的解调装置，以解调潜在地经历移动通信系统中通常遇到的许多不同类型的降级的信号，并且公开了提供显着的性能改进的最佳结果。根据该方法，当RF信号被接收时，其被采样并且样本被解调。使用相干和非相干方案进行解调，根据每个解调器的性能质量选择优选方案。当信号经受显着的路径损耗但几乎没有衰落时，相干解调可以提供更好的性能。当信号经受较少的路径损耗但具有显着的衰落时，非相干解调可以提供更好的性能。公开了该方法的细节。

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