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1. 发明授权

US06091758A Cordless telephone arranged for operating with multiple portable units in a frequency hopping system 失效
标题翻译：无线电话安排在跳频系统中与多个便携式设备一起操作
公开(公告)号：US06091758A
公开(公告)日：2000-07-18
申请号：US942026
申请日：1997-10-01
申请人： Joseph L. Ciccone , Sanjay Kasturia , David C. Nall , Chu Ng , Jay E. Padgett , Colin A. Warwick
发明人： Joseph L. Ciccone , Sanjay Kasturia , David C. Nall , Chu Ng , Jay E. Padgett , Colin A. Warwick
IPC分类号： H04B7/26 , H04J13/00 , H04L7/04 , H04M1/725 , A61F2/06 , H04L27/30
CPC分类号： H04B7/2621 , H04M1/72511 , H04J13/0074 , H04L7/041
摘要： A cordless telephone is arranged for operation in a frequency hopping system includes an arrangement which achieves optimum utilization of multiple cordless telephone portable units by permitting these units to simultaneously access a common base unit. A physical layer of an air interface is provided by a two channel time division multiple access protocol for supporting a two channel multiple access system for the portable units. These two channels are considered as virtual channels and not dedicated to any particular telephone line, as in the case of two line telephone products. Nor are these two channels dedicated to any particular portable unit, but rather they are available for use by any portable unit in the telephone. A signaling layer of the air interface is provided for supporting the two channel multiple access system. Two types of subframes, acquisition and traffic, are illustratively provided in the air interface for the cordless telephone. The acquisition subframe is a synchronization frame that is configured for fast and reliable symbol and frame timing recovery. Single frame acquisition even in an extreme user hostile environment is achievable. Traffic subframes are used after a communication link has been built and full voice and/or data is interchanged. Signaling between the base unit and portable units is supported during both the traffic mode and the acquisition mode.
摘要翻译：无绳电话被布置用于在跳频系统中操作，包括通过允许这些单元同时访问公共基本单元来实现多个无绳电话便携式单元的最佳利用的布置。空中接口的物理层由双通道时分多址协议提供，用于支持用于便携式单元的双通道多址系统。这两个通道被视为虚拟通道，而不是专用于任何特定的电话线路，如在两线电话产品的情况。这两个通道也不是专用于任何特定的便携式设备，而是可以由电话中的任何便携式设备使用。空中接口的信令层被提供用于支持两个信道多址系统。说明性地在无绳电话的空中接口中提供两种类型的子帧，采集和业务。采集子帧是配置用于快速可靠的符号和帧定时恢复的同步帧。即使在极端用户恶意环境中也可实现单帧采集。在构建通信链路并且完整的语音和/或数据被互换之后使用业务子帧。支持流量模式和采集模式之间的基本单元和便携式设备之间的信令。

2. 发明授权

US6111389A Rapidly charging a battery without overcharging 失效
标题翻译：对电池进行快速充电，无需过充电
公开(公告)号：US6111389A
公开(公告)日：2000-08-29
申请号：US99253
申请日：1998-06-18
申请人： Gene Aranovich , David C. Nall , Claudio Spinelli , Edwin A. Muth
发明人： Gene Aranovich , David C. Nall , Claudio Spinelli , Edwin A. Muth
IPC分类号： H01M10/44 , H02J7/00 , H01M10/46
CPC分类号： H01M10/44 , H02J7/0091
摘要： In the rapid charging of a Nickel Cadmium (NiCad) battery, the rapid charging is terminated and trickle charging is initiated when any of three conditions is satisfied: a first condition determined by comparing a sensed instantaneous battery voltage with a target voltage; a second condition which is determined by comparing the instantaneous battery temperature with minimum and maximum values; and a third condition determined by comparing an elapsed time of rapid charging with a maximum value. Because battery voltage versus rapid charging time is a function of ambient temperature, the target voltage is determined from an initial measurement of battery temperature, which is assumed to equal the ambient temperature. The target voltage, which is approximately a linearly declining function of ambient temperature, is determined by reading a stored lookup table using the sensed temperature as an index or address.
摘要翻译：在镍镉（NiCad）电池的快速充电中，快速充电终止，并且当满足三个条件中的任何一个时开始涓流充电：通过将感测的瞬时电池电压与目标电压进行比较而确定的第一条件; 通过将瞬时电池温度与最小值和最大值进行比较来确定的第二条件; 以及通过将快速充电的经过时间与最大值进行比较而确定的第三条件。因为电池电压与快速充电时间是环境温度的函数，所以目标电压是从电池温度的初始测量中确定的，这被认为等于环境温度。通过使用感测的温度读取存储的查找表作为索引或地址来确定近似环境温度的线性下降函数的目标电压。

3. 发明授权

US5029232A Satellite communications network 失效
标题翻译：卫星通信网络
公开(公告)号：US5029232A
公开(公告)日：1991-07-02
申请号：US295984
申请日：1989-01-12
申请人： David C. Nall
发明人： David C. Nall
IPC分类号： H04B7/185 , H04H40/90
CPC分类号： H04H40/90 , H04B7/18523
摘要： A satellite communication network includes an encoder for encoding a signal including message, addressing, and command information and a transmitter connected with the encoder for transmitter the encoded signal to a satellite. The message information may comprise video and/or audio information. A plurality of receivers located at a remote location from the transmitter are operable to receive selected portions of the encoded signal from the satellite in response to the addressing information contained in the encoded signal. A decoder is connected with each receiver for decoding the received portion of the encoded signal. The decoder includes a control device which is operable to control peripheral recording devices including one or more video tape recorders and a printer to record the video information from the decoded signal in response to command information contained in the encoded signal. The satellite communications system according to the invention provides an automatic system for downlinking and recording programming during low usage times for subscribing television stations.
摘要翻译：卫星通信网络包括用于对包括消息，寻址和命令信息的信号进行编码的编码器和与编码器连接的发射机，用于将编码信号发射到卫星。消息信息可以包括视频和/或音频信息。响应于包含在编码信号中的寻址信息，位于远离发射机的多个接收机可操作以从卫星接收编码信号的选定部分。解码器与每个接收器连接，用于对接收到的编码信号部分进行解码。解码器包括控制装置，其可操作以响应于包含在编码信号中的命令信息来控制包括一个或多个录像机的外围记录装置和打印机来从解码信号记录视频信息。根据本发明的卫星通信系统提供了一种用于在用于订阅电视台的低使用时间期间下行和记录节目的自动系统。

4. 发明授权

US6052407A Apparatus and method for detection frequency hopping patterns embedded in radio frequency noise 失效
公开(公告)号：US6052407A
公开(公告)日：2000-04-18
申请号：US942025
申请日：1997-10-01
申请人： Joseph L Ciccone , David C. Nall , Chu Ng
发明人： Joseph L Ciccone , David C. Nall , Chu Ng
IPC分类号： H04B15/00 , H04K1/00 , H04L27/30
CPC分类号： H04B1/7156 , H03J1/0091 , H04K3/226 , H04K3/82 , H04K2203/16
摘要： Communication links are quickly and reliably established between units of a cordless telephone configured for operating in a frequency hopping system. This is achieved through specific processes which detects frequency hopping patterns that are embedded in radio frequency noise. A first process is executed by the base unit and/or each of multiple handset units in the cordless telephone for performing a link acquisition with another unit, also in the cordless telephone. In the execution of this process, multiple profile scans of the frequency hopping channels are executed to build up over time tables with information about energy in all of the channels in the frequency spectrum that are used by the units in the cordless telephone for frequency hopping. In the tables will be spectrum energy from a frequency hopping base unit or handset unit that appears as a recognizable pattern. By applying correlation techniques to the pattern in each table, information is obtained which reflects the probability that a hopping pattern for an associated unit in the cordless telephone has been detected. The unit obtaining this information is then able to quickly join the frequency hopping cycle of the detected base unit or handset unit. An abbreviated second process also is executed by each of multiple handset units in the cordless telephone for performing a link acquisition with another unit, also in the cordless telephone. In the execution of this process, multiple profile scans of the frequency hopping channels are executed to build up over time tables with information about the energy in some minimum number of channels that are used by the units in the frequency spectrum. This process is executed when the searching unit has previous information as to the possible location for the hopping unit in the frequency hopping cycle. In this process, the frequency hopping cycle is easily detected and synchronization with this cycle quickly obtained.

5. 发明授权

US5422916A Partial frame detector 失效
标题翻译：部分帧检测器
公开(公告)号：US5422916A
公开(公告)日：1995-06-06
申请号：US947221
申请日：1992-09-18
申请人： David C. Nall
发明人： David C. Nall
IPC分类号： H04L7/04 , H04L7/00
CPC分类号： H04L7/042
摘要： A partial frame detector provides detection of a frame synchronization pattern in an environment of burst noise that prohibits detection by correlation. A frame synchronization pattern capable of sustaining a minimum of 17 bits clustered in error plus random errors while still providing frame detection is achieved by utilizing a 64 bit Barker derived frame synchronization pattern and an additional process included in a correlation algorithm.
摘要翻译：部分帧检测器在突发噪声的环境中提供帧同步模式的检测，禁止通过相关检测。通过利用64位Barker导出的帧同步模式和包括在相关算法中的附加处理，能够实现在仍然提供帧检测的同时，能够维持最少17位的误差加上随机误差的帧同步模式。

6. 发明授权

US6088595A Arrangement for configuring multiple portable units for communicating with each other in a frequency hopping system 失效
标题翻译：用于在跳频系统中配置用于彼此通信的多个便携式单元的布置
公开(公告)号：US6088595A
公开(公告)日：2000-07-11
申请号：US997189
申请日：1997-11-01
申请人： Joseph L. Ciccone , David C. Nall , Chu Ng
发明人： Joseph L. Ciccone , David C. Nall , Chu Ng
IPC分类号： H04B1/713 , H04B1/7156
CPC分类号： H04B1/7156 , H04B1/713 , H04B2001/71563
摘要： A cordless telephone arranged for operation in a frequency hopping system includes an arrangement which achieves optimum utilization of multiple cordless telephone portable units by permitting these units to not only access a common base unit, but also to access each other. In establishing communications between portable units, a first portable unit in the system, in response to a user-initiated request at this unit, transmits a broadcast or page signal to other portable units, also in the system, using a multiple channel frequency hopping sequence. Once a second portable unit in the system responds, a communication link between the first and second portable units is established. A third portable unit in the system may also respond to the user initiated request and join the communication link existing between the first and second portable units. Such portable-unit-to-portable-unit communication link may be established irrespective of whether a base unit to portable unit communication link then exists in the system. After the communication link with the first, second and possibly third portable unit is established, these portable units move to and use a multiple channel frequency hopping sequence that is different from the frequency hopping sequence used to establish the communication link. In this way, the original hopping sequence remains available for other portable units to build similar communication links. Thus, an unlimited number of portable-unit-to-portable-unit communication links may be built and maintained in the system.
摘要翻译：布置为在跳频系统中操作的无绳电话包括通过允许这些单元不仅访问公共基本单元而且彼此访问的方式来实现多个无绳电话便携式单元的最佳利用的布置。在建立便携式单元之间的通信时，系统中的第一便携式单元响应于在该单元处的用户发起的请求，也在系统中使用多信道跳频序列将广播或寻呼信号发送到其他便携式单元。一旦系统中的第二便携式单元响应，则建立第一和第二便携式单元之间的通信链路。系统中的第三便携式单元还可以响应于用户发起的请求并加入存在于第一和第二便携式单元之间的通信链路。无论在系统中是否存在基本单元到便携式单元通信链路，可以建立这样的便携式单元到便携式单元通信链路。在与第一，第二和第三便携式单元的通信链路建立之后，这些便携式单元移动并使用与用于建立通信链路的跳频序列不同的多信道跳频序列。以这种方式，原始跳频序列对于其他便携式单元仍然可用于构建类似的通信链路。因此，可以在系统中建立和维护无限数量的便携式单元到便携式单元通信链路。

7. 发明授权

US6078819A Apparatus and method for prolonging battery life in a portable telephone having first and second deactivating conditions 失效
标题翻译：用于延长具有第一和第二停用条件的便携式电话中的电池寿命的装置和方法
公开(公告)号：US6078819A
公开(公告)日：2000-06-20
申请号：US969427
申请日：1997-11-01
申请人： Joseph L. Ciccone , David C. Nall , Chu Ng
发明人： Joseph L. Ciccone , David C. Nall , Chu Ng
IPC分类号： H04M1/73 , H04W52/02 , H04Q7/20
CPC分类号： H04M1/73 , H04W52/028
摘要： A cordless telephone arranged for operation in a frequency hopping system provides for conserving battery power in a portable unit when this unit is located remote from its charging station and in a standby state. While in the standby state, the portable unit resides in a low power monitoring mode which includes deactivating certain internal circuitry and periodically activating and deactivating other selected internal circuitry for conserving battery power. When the portable unit is periodically activated from a deactivated state, battery power is conserved through an adaptive operation that reduces considerably the length of time that the selected internal circuitry needs to remain turned on. This reduced on-time period for the selected internal circuitry is provided as long as the base unit is detected as frequency hopping with at least one other of the portable units in the system. If the base unit is not detected as frequency hopping, however, the length of time that the selected internal circuitry remains on is left at its normal, unreduced on-time period. Energy savings for a portable unit operating with the reduced on-time period are significantly greater than those realized when the portable unit is operated with the normal, unreduced on-time period. Another portable unit operating as the base unit may also provide a frequency hopping signal suitable for use by the adaptive operation in providing the reduced on-time period for the internal circuitry of the portable unit.
摘要翻译：布置为在跳频系统中操作的无绳电话在本装置位于远离其充电站并且处于待机状态时，用于节省便携式装置中的电池电力。在待机状态下，便携式单元处于低功率监控模式，其包括停用某些内部电路，并周期性地激活和去激活其他所选择的内部电路以节省电池电力。当便携式单元从停用状态周期性地激活时，通过自适应操作来节省电池功率，这大大减少了所选内部电路需要保持开启的时间长度。只要基本单元被检测为与系统中的至少另一个便携式单元进行跳频，则提供所选择的内部电路的这个减小的接通时间周期。然而，如果基本单元没有被检测为跳频，则所选择的内部电路保持导通的时间长度保持在正常的，未减速的导通时间段。便携式设备的运行时间缩短时的节能量明显大于便携式设备在正常，未减速的运行时间内实现的节能。作为基本单元操作的另一便携式单元还可以提供适合于通过自适应操作使用的跳频信号，以为便携式单元的内部电路提供缩短的接通时间周期。

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