公开(公告)号：US06366573B1

公开(公告)日：2002-04-02

申请号：US08863991

申请日：1997-05-27

申请人： David J. Smith ,  Rodney W. Gibson

发明人： David J. Smith ,  Rodney W. Gibson

IPC分类号： H04J324

CPC分类号： H04W84/025

摘要： A method of transmitting messages in an answer-back paging system in which a primary station (10,14,16) transmits a series of messages addressed to respective secondary stations (20) on a down-link. The primary station then invites the secondary stations to transmit their responses, for example as CDMA signals, on an up-link. On receipt the primary station analyses those responses which are deemed to be intelligible, matches them to the originally transmitted messages and transmits acknowledgements to the relevant secondary stations. The primary station then issues another invitation to those stations whose responses had not been detected requesting them to reply on the up-link. Those responses which are deemed intelligible are processed as before and acknowledgements are transmitted together with another invitation on the down-link. The cycle of operations is repeated until either a predetermined number of cycles have elapsed or it is considered that all the intelligible responses have been received. The method can be adapted to include handling requests for service as well as handling responses to messages sent on the down-link.

摘要翻译： 一种在回答寻呼系统中发送消息的方法，其中主站（10,14,16）在下行链路上发送寻址到相应次站（20）的一系列消息。 主站然后邀请次站在上行链路上发送其响应，例如作为CDMA信号。 收到后，主站分析认为可理解的响应，将其与原始发送的消息进行匹配，并将确认发送给相关的次站。 然后，主站向那些没有被检测到响应的站发出另一个邀请，要求他们在上行链路上进行回复。 被认为可理解的那些响应如前所述进行处理，并且确认在下行链接上与另一个邀请一起发送。 重复操作的循环直到经过预定数量的循环或者认为已经接收到所有可理解的响应。 该方法可以适于包括处理服务请求以及处理对在下行链路上发送的消息的响应。

公开(公告)号：US4539646A

公开(公告)日：1985-09-03

申请号：US355635

申请日：1982-03-08

申请人： Paul J. Stein ,  Rodney W. Gibson

发明人： Paul J. Stein ,  Rodney W. Gibson

IPC分类号： H04L27/26 ,  H04W88/02 ,  G06F15/31

CPC分类号： H04W88/027

摘要： A multi-tone sequential call signal detector in which a microcomputer is used to detect the tones of a received signal by simulating digitally the response of analogue tuned circuits. The detector includes a limiter for producing a square wave signal from a tone signal, a differentiator for producing interrupt pulses, and a microcomputer which responds to the interrupt pulses to activate a visual display and a call lamp of an output circuit when it detects all the received tones of the signal. The microcomputer performs an algorithm by which it measures the period between successive interrupt pulses, determines which tone frequency has this period, starts a number count which represents the "rise" response of a tuned circuit for that tone frequency, and determines when the number count reaches a threshold number which represents the resonant condition of the tuned circuit.

摘要翻译： 一种多音调顺序呼叫信号检测器，其中微型计算机用于通过数字仿真模拟调谐电路的响应来检测接收信号的音调。 检测器包括用于从音调信号产生方波信号的限制器，用于产生中断脉冲的微分器，以及响应于中断脉冲以启动视觉显示的微型计算机以及输出电路的呼叫灯，当它检测到所有 收到信号的音调。 微型计算机执行一种算法，通过该算法测量连续中断脉冲之间的周期，确定哪个音频具有该周期，开始表示该音调频率的调谐电路的“上升”响应的数字计数，并确定何时数 达到表示调谐电路的谐振状态的阈值数。

公开(公告)号：US06369693B1

公开(公告)日：2002-04-09

申请号：US08512239

申请日：1995-08-07

申请人： Rodney W. Gibson

发明人： Rodney W. Gibson

IPC分类号： H04Q100

CPC分类号： H03J1/0025 ,  G08C17/02 ,  G08C2201/20 ,  G08C2201/61 ,  H04B1/205 ,  H04N5/44

摘要： A method of transferring secure data in a remote control system including a remote controller (12) and an apparatus (10) which is operable in response to commands relayed by way of the remote controller. The apparatus has a receiver (38) for receiving transmissions from the remote controller (12), the information from the transmissions being stored in a storage device (42). The remote controller has a transmitter (26), a memory (22) for storing secure data and commands and a keypad (24). The transmitter (26) is controlled so that in response to a user wishing to transfer secure data to the user apparatus (10), it transmits this data at a power level lower than that which is normally used for sending other commands. The link between the remote controller (12) and the user apparatus (10) may be wireless or infra-red.

摘要翻译： 一种在远程控制系统中传输安全数据的方法，所述遥控系统包括遥控器（12）和装置（10），该装置可响应于通过遥控器中继的命令而可操作。 该设备具有用于从遥控器（12）接收传输的接收器（38），来自传输的信息被存储在存储设备（42）中。 遥控器具有发射器（26），用于存储安全数据和命令的存储器（22）和键盘（24）。 发射机（26）被控制成使得响应于希望将安全数据传送到用户装置（10）的用户，它以低于通常用于发送其他命令的功率电平发送该数据。 遥控器（12）和用户装置（10）之间的链路可以是无线或红外线。

公开(公告)号：US5881092A

公开(公告)日：1999-03-09

申请号：US754663

申请日：1996-11-21

申请人： Rodney W. Gibson

发明人： Rodney W. Gibson

IPC分类号： H04B1/707 ,  H04B7/26 ,  H04W84/02 ,  H04B15/00 ,  H04K1/00 ,  H04L27/30

CPC分类号： H04W84/025 ,  H04B1/707

摘要： A method of reducing computation in spread spectrum signals in which a spread spectrum signal sent by a transmitting station (SS1) includes a group and an individual identity code. A receiver (10, 12) stores the received signals based on their group codes and analyses the stored signals on a group by group basis. This greatly reduces this computation required when recovering individual messages from a number of simultaneously transmitted spread spectrum signals. Optionally the transmitting station may send the group and individual identity code signals simultaneously as quadrature signals.

摘要翻译： 一种在扩频信号中减少计算的方法，其中发送站（SS1）发送的扩频信号包括一组和一个单独的身份码。 接收机（10,12）基于其组码存储接收到的信号，并逐个分组地分析存储的信号。 这大大减少了从多个同时发送的扩频信号中恢复各个消息时所需的计算。 可选地，发送站可以同时发送组和个人身份码信号作为正交信号。

公开(公告)号：US5872522A

公开(公告)日：1999-02-16

申请号：US552321

申请日：1995-11-02

申请人： Rodney W. Gibson

发明人： Rodney W. Gibson

IPC分类号： H04B1/707 ,  H04B7/26 ,  H04W84/02 ,  H04W88/02 ,  H04Q7/00

CPC分类号： H04W84/025 ,  H04W88/022 ,  Y02B60/50

摘要： A selective call system including a system controller, a base station transceiver and a plurality of secondary stations with receivers and low powered transmitters capable of sending spread spectrum signals. Invitations are issued to the secondary stations by the system controller at varying power levels. Only those secondary stations receiving the invitation signal are able to respond. Those secondary stations too far away cannot respond to a low power invitation, and since each secondary station can only respond once, upon a received invitation of increased power, such outer lying secondary stations can respond without interference from closer lying secondary stations.

摘要翻译： 一种选择性呼叫系统，包括系统控制器，基站收发机和具有接收机的多个次站以及能够发送扩频信号的低功率发射机。 系统控制器以不同的功率级别向辅站发出邀请。 只有那些接收到邀请信号的次站才能响应。 太平洋的这些次要站不能响应低功率的邀请，并且由于每个次站只能响应一次，所以在接收到的增加的功率的邀请之后，这样的外置的次站可以在更靠近的位于二级站的干扰下进行响应。

公开(公告)号：US5892793A

公开(公告)日：1999-04-06

申请号：US558061

申请日：1995-11-10

申请人： Rodney W. Gibson

发明人： Rodney W. Gibson

IPC分类号： H04B1/707 ,  H04Q7/06 ,  H04Q7/08 ,  H04Q7/10 ,  H04Q7/12 ,  H04K1/00

CPC分类号： H04B1/707

摘要： A communications system including a primary station and at least one or more secondary stations. The secondary station transmits signals as spread spectrum signals and a receiver in the primary station receives and decodes the spread signals. Frequency offsets in the received spread spectrum signals are dealt with by digitizing the received signals to produce raw data samples which are despread, frequency analyzed and the spectrums derived are scanned for peaks exceeding a predetermined threshold and the outputs indicate the presence or absence of codes.

摘要翻译： 一种通信系统，包括主站和至少一个或多个次站。 次站发送信号作为扩频信号，主站中的接收机接收并解码扩展信号。 接收到的扩展频谱信号中的频率偏移通过对接收到的信号进行数字化以产生被解扩频，频率分析的原始数据采样并且导出的频谱被扫描超过预定阈值的峰值，并且输出指示存在或不存在代码来处理。

公开(公告)号：US4682117A

公开(公告)日：1987-07-21

申请号：US858849

申请日：1986-04-30

申请人： Rodney W. Gibson

发明人： Rodney W. Gibson

IPC分类号： H04L27/38 ,  H04L27/152 ,  H04L27/16 ,  H04L27/227 ,  H03D3/00

CPC分类号： H04L27/2273 ,  H04L27/1525 ,  H04L27/16

摘要： A data receiver in which the phase of the carrier signal is controlled so that the threshold levels used for coherent demodulation occur at the quarter points, that is 0.degree., 90.degree., 180.degree. and 270.degree.. An input signal is mixed with a local oscillator signal in a pair of mixers and the outputs therefrom are low pass filtered and subsequently demodulated. Any phase errors between the local oscillator signal and the input carrier signal are corrected by a correction loop. The carrier phase error is corrected after (or downstream of) the low pass filters, so that the phase can be corrected rapidly without the risk of instability.

摘要翻译： 一种数据接收器，其中控制载波信号的相位，使得用于相干解调的阈值电平发生在四分之一点，即0°，90°，180°和270°。 输入信号与一对混频器中的本地振荡器信号混合，并且其输出被低通滤波并随后解调。 本地振荡器信号与输入载波信号之间的任何相位误差均由校正回路校正。 在低通滤波器的（或下游）之后校正载波相位误差，使得可以快速校正相位而不会出现不稳定的风险。

公开(公告)号：US06239690B1

公开(公告)日：2001-05-29

申请号：US09188750

申请日：1998-11-09

申请人： Richard C. Burbidge ,  David K. Roberts ,  Philip A. Jamieson ,  Rodney W. Gibson

发明人： Richard C. Burbidge ,  David K. Roberts ,  Philip A. Jamieson ,  Rodney W. Gibson

IPC分类号： H04Q714

CPC分类号： H04W52/0212 ,  H04B1/126 ,  H04W52/0229 ,  H04W52/0238 ,  H04W88/022 ,  Y02D70/40

摘要： For battery economizing in a receiving station (CU) having a radio identity code (RIC) consisting of M bits, a base station (MIU) transmits a wake-up message consisting of at least two repetitions of a wake-up sequence having N concatenated parts. Each of the N parts includes a sync code word and a different fraction M/N of bits of a radio identity code (RIC). The receiving station is energized intermittently in order to detect carrier and at least one of the N parts. In response to detecting that one of the N parts is received, the receiving station remains energized and analyzes at least the detected one of the N parts. If the received bits of the transmitted radio identity code do not correspond to the corresponding bits of the receiving station's radio identity code, the receiving station reverts to intermittent energization, otherwise it remains energized to receive a message appended to the transmitted radio identity code. Each of the parts may be appended to a different sync code word identifying the part thereby enabling address identification to be carried out on only that one of the parts. The bits of the transmitted radio identity code may be scrambled prior to being fractionalized into the N parts.

摘要翻译： 为了在具有由M位组成的无线电标识码（RIC）的接收站（CU）中节约电池，基站（MIU）发送由具有N级连接的唤醒序列的至少两个重复组成的唤醒消息 部分。 N个部分中的每一个包括无线电标识码（RIC）的同步码字和比特的不同分数M / N。 接收站被间歇地通电，以便检测载波和N个部分中的至少一个。 响应于检测到N个部分中的一个被接收，接收站保持通电并且至少分析所检测到的N个部分之一。 如果所发送的无线电标识码的接收比特不对应于接收站的无线电身份码的相应比特，则接收站恢复为间歇性通电，否则，其保持通电以接收附加到所发射的无线电身份码的消息。 每个部分可以附加到识别该部分的不同的同步码字，从而使得能够仅在该部分之一上执行地址标识。 所发射的无线电身份码的比特可以在被分数化为N个部分之前被加扰。

公开(公告)号：US6021311A

公开(公告)日：2000-02-01

申请号：US975383

申请日：1997-11-20

申请人： Rodney W. Gibson ,  Peter M. Relph ,  John R. Bell

发明人： Rodney W. Gibson ,  Peter M. Relph ,  John R. Bell

IPC分类号： H04W84/02 ,  H04W88/02 ,  H04Q7/00

CPC分类号： H04W84/025 ,  H04W88/022

摘要： A message transmission system includes at least one primary station arranged for making transmissions on a down-link and a plurality of secondary stations arranged for making transmissions on an up-link, each of the secondary stations having its own address which is transmitted as part of the down-link message. Each of the secondary stations is configured for generating responses to messages as pseudo-random data sequences, the pseudo-random data sequence being generated by a secondary station at any one time being dependent on at least the address assigned to the secondary station and/or information contained in the message.

摘要翻译： 消息传输系统包括至少一个主站，其被布置为在下行链路上进行传输，并且多个次站被布置成用于在上行链路上进行传输，每个次站具有其自己的地址，作为 下行链接消息。 每个次站被配置为用于将消息的响应作为伪随机数据序列产生，所述副站在任何一个时间产生的伪随机数据序列至少依赖于分配给次站的地址和/或 消息中包含的信息。

公开(公告)号：US4570125A

公开(公告)日：1986-02-11

申请号：US509822

申请日：1983-06-30

申请人： Rodney W. Gibson

发明人： Rodney W. Gibson

IPC分类号： H04L27/14 ,  H04L27/152 ,  H04L27/18 ,  H04L27/227 ,  H03D3/18 ,  H03D3/20

CPC分类号： H04L27/1525 ,  H04L27/2273

摘要： A data demodulator for digital signals in which the times of the zero crossings in hard limited signals in the orthogonal outputs (I and Q) of a direct demodulation receiver are used to recover the carrier and clock signals.

摘要翻译： 用于数字信号的数据解调器，其中使用直接解调接收机的正交输出（I和Q）中的硬限制信号中的过零时间来恢复载波和时钟信号。