公开(公告)号：US06597671B1

公开(公告)日：2003-07-22

申请号：US09140213

申请日：1998-08-26

申请人： Hamid Ahmadi ,  David Bantz ,  Frederic Bauchot ,  Colin Harrison ,  Arvind Krishna ,  Jose Louis Martinez ,  Kadathur Natarajan ,  Michelle Wetterwald

发明人： Hamid Ahmadi ,  David Bantz ,  Frederic Bauchot ,  Colin Harrison ,  Arvind Krishna ,  Jose Louis Martinez ,  Kadathur Natarajan ,  Michelle Wetterwald

IPC分类号： H04J1306

CPC分类号： H04W28/26 ,  H04B1/713 ,  H04B1/715 ,  H04B2001/7152 ,  H04W16/12 ,  H04W28/16 ,  H04W60/00 ,  H04W64/006 ,  H04W72/00 ,  H04W84/12 ,  H04W88/04 ,  H04W88/08

摘要： In a wireless communication system (106), base stations (118, 120) are connected to a backbone network (116) such as a wired LAN and act as access points and relays for remote stations (128, 132, 136). A remote station registers and performs bidirectional communication with one of the base stations designated as its home base station. Base stations have overlapping coverage areas where a remote station is within reception range of several base stations. Such communication system may for instance be a multicell radio LAN using frequency hopping signaling. The method allows to reuse a limited number of network resources such as frequency hopping patterns and assign the same resource to several active base stations. Upon request from a base station, a network controller (110) connected to the backbone network computes a distance index between the requesting base station and the other active base stations and assigns to the requesting base station the same network resource as the one assigned to another base station with the highest distance index. Information about cells overlaps is centralized in a control database (109) and used by the network controller to compute distance indexes.

摘要翻译： 在无线通信系统（106）中，基站（118,120）连接到诸如有线LAN的骨干网络（116），并且用作远程站（128,132,136）的接入点和中继站。 远程站注册并与指定为其家庭基站的基站之一进行双向通信。 基站具有重叠的覆盖区域，其中远程站在几个基站的接收范围内。 这种通信系统可以例如是使用跳频信令的多单元无线电LAN。 该方法允许重用有限数量的网络资源，例如跳频模式，并将相同的资源分配给多个活动基站。 根据来自基站的请求，连接到骨干网的网络控制器（110）计算请求基站与其他有效基站之间的距离索引，并向请求基站分配与分配给另一个基站的相同的网络资源 基站距离指数最高。 关于细胞重叠的信息集中在控制数据库（109）中，由网络控制器用于计算距离指数。

公开(公告)号：US5812184A

公开(公告)日：1998-09-22

申请号：US526841

申请日：1995-09-11

申请人： Louis Martinez

发明人： Louis Martinez

IPC分类号： G01S13/87 ,  H04B7/26 ,  H04L5/02 ,  H04L27/20 ,  H04N7/08 ,  H04N7/085 ,  H04N7/173 ,  H04W64/00 ,  H04N7/14

CPC分类号： G01S13/878 ,  H04B7/2621 ,  H04L27/2071 ,  H04L5/02 ,  H04N7/08 ,  H04N7/085 ,  H04N7/173 ,  H04N7/17309 ,  H04W64/00 ,  H04N2007/17372

摘要： A bidirectional cable television system provides for transmission of signals from cable subscribers downlink in the same direction as the ensemble of television channels which the cable television system is already constructed to deliver. The subscriber signals may be transmitted over the cable in the blanking intervals of a cable television channel, using the T-NET technique described in U.S. Pat. No. 4,750,036. Alternatively, the signals may be carried over a dedicated channel, or transmitted cochannel along a cable television channel carrying ordinary programming by adding the subscriber information to alternating video frames in alternating polarity to achieve visual cancellation. The subscriber signals are collected after the last distribution line amplifier in the cable downlink. The collected signals are transmitted to a central receiver via wireless or other customary means such as a modem. The collected signals may alternatively be transmitted over the air to the central receiver in the blanking intervals of a broadcast television channel using the T-NET technique.

摘要翻译： 双向有线电视系统提供来自电缆用户下行链路的信号的传输方向与有线电视系统已经构建为传送的电视频道的整体相同。 用户信号可以在有线电视频道的消隐间隔内通过电缆传输，使用在美国专利No.4,215,254中描述的T-NET技术。 第4,750,036号。 或者，可以通过将具有交替视频帧的用户信息添加到交替极性以实现视觉消除的方式，通过携带普通节目的有线电视频道的专用信道或发送的同频道来传送信号。 用户信号在电缆下行链路中的最后一个配线放大器之后被收集。 所收集的信号通过诸如调制解调器之类的无线或其它常规手段传送到中央接收机。 也可以采用T-NET技术将所收集的信号通过空中传送到广播电视频道的消隐间隔中的中央接收机。

公开(公告)号：US5177604A

公开(公告)日：1993-01-05

申请号：US202206

申请日：1988-06-03

申请人： Louis Martinez

发明人： Louis Martinez

IPC分类号： G01S13/87 ,  H04B7/26 ,  H04L5/02 ,  H04L27/20 ,  H04N7/08 ,  H04N7/085 ,  H04N7/173 ,  H04W64/00

CPC分类号： H04W64/00 ,  G01S13/878 ,  H04B7/2621 ,  H04L27/2071 ,  H04L5/02 ,  H04N7/08 ,  H04N7/085 ,  H04N7/173 ,  H04N7/17309 ,  H04N2007/17372

摘要： A spread spectrum system provides bidirectional digital communication on a vacant television (TV) channel for simultaneous use by more than 75,000 subscribers using time and frequency division multiplex signals locked to horizontal and vertical sync pulses of an adjacent channel Host TV station. The system, whose operation is analogous to a radar system, comprises (1) the Host TV station to send down-link sync and data pulses to subscribers during the horizontal blanking interval (HBI), (2) subscriber "transponders" which detect those signals and transmits up-link "echo" data pulses only during the HBI to eliminate interference to TV viewers, and (3) a central receiver which also uses the host TV sync pulses to trigger range gates to detect the up-link data pulses. In a preferred embodiment the central receiver employs directional antennas to determine direction to transponders and to define angular sectors partitioning the service area into pie-link "cells" which permit frequency re-use in non-contiguous sectors (like cellular radio). The system thus operates like a radar to measure elasped time between receipt of TV sync pulses and receipt of transponder response pulses and measures bearing to transponders to thereby determine the location of fixed or mobile subscribers as well as provide data links to them. Transponders may share user's existing TV antenna or may operate on cable TV and could be packaged as "RF modems" for personal computers, as transceivers for mobile or portable use, or they may be integrated with a TV receiver to provide "interactive television".

摘要翻译： 扩展频谱系统在空闲电视（TV）频道上提供双向数字通信，用于由超过75,000个用户同时使用使用锁定在相邻信道主机电视台的水平和垂直同步脉冲的时间和频分复用信号。 该系统的操作类似于雷达系统，包括（1）主机电视台在水平消隐间隔（HBI）期间向订户发送下行链路同步和数据脉冲，（2）检测到这些信号的用户“应答器” 信号并且仅在HBI期间传输上行链路“回波”数据脉冲，以消除对电视观众的干扰，以及（3）还使用主机TV同步脉冲触发范围门以检测上行链路数据脉冲的中央接收机。 在优选实施例中，中央接收机使用定向天线来确定对应答器的方向，并且将定义服务区域的角度扇区定义为允许在非连续扇区（如蜂窝无线电）中频率重新使用的像素链路“小区”。 因此，该系统像雷达一样操作来测量接收到TV同步脉冲之间的时间和接收到应答器响应脉冲之间的时间，以及对转发器的承受力，从而确定固定或移动用户的位置以及提供与它们的数据链接。 应答器可以共享用户现有的电视天线，或者可以在有线电视上操作，并且可以作为个人计算机的“RF调制解调器”打包，作为用于移动或便携式使用的收发器，或者它们可以与电视接收机集成以提供“交互式电视”。

公开(公告)号：US4750036A

公开(公告)日：1988-06-07

申请号：US863101

申请日：1986-05-14

申请人： Louis Martinez

发明人： Louis Martinez

IPC分类号： H04N7/025 ,  G01S13/87 ,  H04B7/26 ,  H04L5/02 ,  H04L27/20 ,  H04N7/03 ,  H04N7/035 ,  H04N7/08 ,  H04N7/081 ,  H04N7/083 ,  H04N7/084 ,  H04N7/085 ,  H04N7/173 ,  H04N7/093 ,  H04N7/00

CPC分类号： H04N7/08 ,  G01S13/878 ,  H04B7/2621 ,  H04L27/2071 ,  H04L5/02 ,  H04N7/085 ,  H04N7/173 ,  H04N7/17309 ,  H04N2007/17372

摘要： A spread spectrum system provides bidirectional digital communication on a vacant television (TV) channel for simultaneous use by more than 75,000 subscribers using time and frequency division multiplex signals locked to horizontal and vertical sync pulses of an adjacent channel Host TV station. The system, whose operation is analogous to a radar system, comprises: (1) the Host TV station to send down-link sync and data pulses to subscribers during the horizontal blanking interval (HBI), (2) subscriber "transponders" which detect those signals and transmits up-link "echo" data pulses only during the HBI to eliminate interference to TV viewers, and (3) a central receiver which also uses the host TV sync pulses to trigger range gates to detect the up-link data pulses. In a preferred embodiment the central receiver employs directional antennas to determine direction to transponders and to define angular sectors partitioning the service area into pie-link "cells" which permit frequency re-use in non-contiguous sectors (like cellular radio). The system thus operates like a radar to measure elapsed time between receipt of TV sync pulses and receipt of transponder response pulses and measures bearing to transponders to thereby determine the location of fixed or mobile subscribers as well as provide data links to them. Transponders may share user's existing TV antenna or may operate on cable TV and could be packaged and "RF modems" for personal computers, as transceivers for mobile or portable use, or they may be integrated with a TV receiver to provide "interactive television".

摘要翻译： 扩展频谱系统在空闲电视（TV）频道上提供双向数字通信，用于由超过75,000个用户同时使用使用锁定在相邻信道主机电视台的水平和垂直同步脉冲的时间和频分复用信号。 该系统的操作类似于雷达系统，包括：（1）主机电视台在水平消隐间隔（HBI）期间向订户发送下行链路同步和数据脉冲，（2）检测到的用户“应答器” 那些信号并且仅在HBI期间发送上行链路“回波”数据脉冲，以消除对电视观众的干扰，以及（3）中央接收机，其也使用主机TV同步脉冲来触发范围门以检测上行链路数据脉冲 。 在优选实施例中，中央接收机使用定向天线来确定对应答器的方向，并且将定义服务区域的角度扇区定义为允许在非连续扇区（如蜂窝无线电）中频率重新使用的像素链路“小区”。 因此，该系统像雷达一样操作以测量接收到电视同步脉冲之间的经过时间以及接收转发器响应脉冲之间的经过时间，以及对转发器的承受力，从而确定固定或移动用户的位置以及提供与它们的数据链接。 应答器可以共享用户现有的电视天线，或者可以在有线电视上操作，并且可以将个人计算机的“RF调制解调器”作为移动或便携式使用的收发器打包，或者可以与电视接收机集成以提供“交互式电视”。

公开(公告)号：US4513415A

公开(公告)日：1985-04-23

申请号：US363613

申请日：1982-03-30

申请人： Louis Martinez

发明人： Louis Martinez

IPC分类号： G05D23/19 ,  H04H20/36 ,  H04Q9/14 ,  H04J3/06 ,  H04J3/12

CPC分类号： H04H20/36 ,  G05D23/1905 ,  H04Q9/14

摘要： A system is disclosed which employs existing broadcast stations to transmit synchronizing and supervisory signals for use by telephone communication devices at remote locations for timing purposes and for coordinating their activities with activities at other locations. The system comprises a broadcast transmitter modified to transmit phase (or frequency) modulated digital signals, which digital signals are synchronized to the carrier of the broadcast station. The broadcast station includes equipment to both periodically transmit synchronizing and supervising signals to coordinate activity of remote devices, and to transmit messages to them. The messages are generated at a central computer location and conveyed to the broadcast station by a dedicated phone line, a microwave link, or other known methods. At remote locations a TELRAD modem includes a radio receiver to detect the broadcast signals which synchronize and supervise them and associated customer apparatus. A central control computer generates the messages. Communications to and from remote monitoring locations is also accomplished. Another important object is to provide broadcast transmissions from more than one broadcast station by providing a receiver at secondary broadcast stations tuned to the primary master transmitter, which receiver detects the transmissions of the master transmitter, modulates the repeater transmitter in the prescribed manner and retransmits the signal to extend the service area.

摘要翻译： 公开了一种使用现有广播站来发送同步和监控信号的系统，以供远程位置处的电话通信设备使用，用于定时目的，并用于协调其活动与其他位置的活动。 该系统包括经修改以传送相位（或频率）调制数字信号的广播发射机，该数字信号与广播台的载波同步。 广播站包括周期性地发送同步和监视信号以协调远程设备的活动并向其发送消息的设备。 消息在中央计算机位置产生并通过专用电话线，微波链路或其他已知方法传送到广播站。 在远程位置，TELRAD调制解调器包括一个无线电接收器，用于检测同步并监督它们和相关客户设备的广播信号。 中央控制计算机生成消息。 还可以实现与远程监控地点的通信。 另一个重要的目的是通过在主要主发射机调谐的辅助广播电台提供接收机来提供来自多于一个广播站的广播传输，该接收机检测主发射机的传输，以规定的方式对中继器发射机进行调制，并重发 信号延长服务区。

公开(公告)号：US4471408A

公开(公告)日：1984-09-11

申请号：US336780

申请日：1982-01-04

申请人： Louis Martinez

发明人： Louis Martinez

IPC分类号： H01H27/00 ,  H01L23/544 ,  H05K1/02 ,  H05K1/18 ,  H05K3/22

CPC分类号： H01L23/544 ,  H01H27/00 ,  H05K1/0266 ,  H01L2223/54473 ,  H01L2924/0002 ,  H05K1/029 ,  H05K1/18 ,  H05K2201/10045 ,  H05K3/222

摘要： A piggyback code switch which provides a unique digital code for various types of circuits, for example, garage door openers, load management control receivers, etc., is used with dual-in-line packaging diodes or resistor arrays in such a manner as to enable any combination of resistors or diodes to be pulled to a preselected voltage level and thus provide such circuits with a common starting code. A switch comprising an array of pins extending from a conductive base is placed atop a DIP network. Specific DIP resistors are shorted together by selectively removing the pins of the switch in accordance with a prearranged coding plan. This provides each circuit with a unique digital identification code.

摘要翻译： 为各种类型的电路提供唯一的数字代码的搭载代码开关，例如车库门开启器，负载管理控制接收器等，与双列直插封装二极管或电阻器阵列一起使用， 使电阻或二极管的任何组合被拉到预选的电压电平，从而为这种电路提供共同的起始码。 包括从导电基底延伸的引脚阵列的开关被放置在DIP网络的顶部。 通过根据预先编排的编程方案选择性地去除开关的引脚，将特定的DIP电阻短路在一起。 这为每个电路提供了唯一的数字识别码。

公开(公告)号：US4208630A

公开(公告)日：1980-06-17

申请号：US952815

申请日：1978-10-19

申请人： Louis Martinez

发明人： Louis Martinez

IPC分类号： G08B3/10 ,  G08G1/07 ,  H04B1/50 ,  H04W88/02 ,  H04B1/40 ,  H04B1/00 ,  H04B1/16 ,  H04B7/00

CPC分类号： H04W88/023 ,  G08B3/1016 ,  G08G1/07 ,  H04B1/50

摘要： The inventor discloses an ultra narrow band relatively ultra stable radio apparatus for communicting paging or control signals from a central transmitter to a multiplicity of remotely located receivers, which receivers may be carried on the person of individuals or may be fixed to other devices which they control, such as city traffic control lights, programmable signs, machines, or the like, wherein the central transmitting device and the remote receiving device are both phase locked to a local broadcast station RF carrier so as to provide a means to precisely synchronize the transmitting device with the receiving device and thereby achieve very high signal-to-noise ratio transmissions. The apparatus is capable of transmitting a digital identification code or a digital message and the receiving devices may output a simple on-off signal indicating the presence of a call, or digital message may be output to control an apparatus attached to said receiver. An alternative bidirectional remote device that can both receive and transmit is also disclosed. A novel frequency synthesizer, and means for real time synchronization of both the transmitter and the receiver, are also disclosed.

摘要翻译： 本发明人公开了一种超窄带相对超稳定的无线电设备，用于将寻呼或控制信号从中央发射机传送到多个远程定位接收机，该接收机可以携带在个人身上或者可以被固定到他们控制的其他设备 ，诸如城市交通控制灯，可编程标志，机器等，其中中央发射设备和远程接收设备都被锁定到本地广播站RF载波，以便提供用于精确地同步发送设备 并且由此实现非常高的信噪比传输。 该装置能够发送数字识别码或数字消息，并且接收装置可以输出指示呼叫存在的简单开 - 关信号，或者可以输出数字消息以控制附接到所述接收机的装置。 还公开了可以接收和发送的备选双向远程设备。 还公开了一种新颖的频率合成器和用于发射机和接收机的实时同步的装置。

公开(公告)号：US4117405A

公开(公告)日：1978-09-26

申请号：US737902

申请日：1976-11-02

申请人： Louis Martinez

发明人： Louis Martinez

IPC分类号： H04H20/00 ,  G08B25/10 ,  H03L7/23 ,  H04B1/66 ,  H04B7/00 ,  H04B1/00

CPC分类号： H03L7/235 ,  G08B25/10

摘要： Ultra-narrow-band system for communication between a transmitter device and a receiver device provided by locking both to a carrier signal from a radio broadcast station and synthesizing a precise local frequency at each device as a preset multiple of the frequency of the carrier. Such a system is usable in a multi-station alarm and status communication system including a multiplicity of independent radio alarm transmitters whose various carrier frequencies are different from but phased locked to a local radio broadcast station, and a central alarm receiving station which employs a corresponding multiplicity of synchronous detectors. The detectors each have associated with them a synthesized local oscillator source which is also phase-locked to the same radio broadcast station used by the alarm transmitters. Both the alarm transmitters and the central receiver are thereby accurately referenced to a readily available local frequency source (the broadcast station). As a consequence, very narrow-band radio circuits may be employed and the receiver and transmitter bandwidth may be accurately matched to the information content of the alarm and status signal source to achieve high signal-to-noise ratio reliable transmissions. The disclosed apparatus is relatively immune to intentional or unintentional interference and will burn-through most conventional transmissions which may be transmitting on the same radio channel at the same time, without unduly bothering those other unrelated transmissions.

公开(公告)号：US5781536A

公开(公告)日：1998-07-14

申请号：US468155

申请日：1995-06-06

申请人： Hamid Ahmadi ,  David Bantz ,  Frederic Bauchot ,  Colin Harrison ,  Arvind Krishna ,  Jose Louis Martinez ,  Kadathur Natarajan ,  Michelle Wetterwald

发明人： Hamid Ahmadi ,  David Bantz ,  Frederic Bauchot ,  Colin Harrison ,  Arvind Krishna ,  Jose Louis Martinez ,  Kadathur Natarajan ,  Michelle Wetterwald

IPC分类号： H04B1/713 ,  H04B1/715 ,  H04L12/28 ,  H04L12/56 ,  H04W16/12 ,  H04W28/26 ,  H04W72/00 ,  H04W84/12 ,  H04W88/08 ,  H04Q7/36

CPC分类号： H04W28/26 ,  H04B1/713 ,  H04B1/715 ,  H04B2001/7152 ,  H04W16/12 ,  H04W28/16 ,  H04W60/00 ,  H04W64/006 ,  H04W72/00 ,  H04W84/12 ,  H04W88/04 ,  H04W88/08

摘要： In a wireless communication system (106), base stations (118, 120) are connected to a backbone network (116) such as a wired LAN and act as access points and relays for remote stations (128, 132, 136). A remote station registers and performs bidirectional communication with one of the base stations designated as its home base station. Base stations have overlapping coverage areas where a remote station is within reception range of several base stations. Such communication system may for instance be a multicell radioLAN using frequency hopping signaling. The method allows reuse of a limited number of network resources such as frequency hopping patterns and assign the same resource to several active base stations. Upon request from a base station, a network controller (110) connected to the backbone network computes a distance index between the requesting base station and the other active base stations and assigns to the requesting base station the same network resource as the one assigned to another base station with the highest distance index. Information about cells overlaps is centralized in a control database (109) and used by the network controller to compute distance indexes.

摘要翻译： 在无线通信系统（106）中，基站（118,120）连接到诸如有线LAN的骨干网络（116），并且用作远程站（128,132,136）的接入点和中继站。 远程站注册并与指定为其家庭基站的基站之一进行双向通信。 基站具有重叠的覆盖区域，其中远程站在几个基站的接收范围内。 这样的通信系统可以例如是使用跳频信令的多单元无线LAN。 该方法允许重用有限数量的网络资源，例如跳频模式，并将相同的资源分配给几个活动基站。 根据来自基站的请求，连接到骨干网的网络控制器（110）计算请求基站与其他有效基站之间的距离索引，并向请求基站分配与分配给另一个基站的相同的网络资源 基站距离指数最高。 关于细胞重叠的信息集中在控制数据库（109）中，由网络控制器用于计算距离指数。

公开(公告)号：US5596361A

公开(公告)日：1997-01-21

申请号：US526767

申请日：1995-09-11

申请人： Louis Martinez

发明人： Louis Martinez

IPC分类号： G01S13/87 ,  H04B7/26 ,  H04L5/02 ,  H04L27/20 ,  H04N7/08 ,  H04N7/085 ,  H04N7/173 ,  H04W64/00 ,  H04N7/14

CPC分类号： G01S13/878 ,  H04B7/2621 ,  H04L27/2071 ,  H04L5/02 ,  H04N7/08 ,  H04N7/085 ,  H04N7/173 ,  H04N7/17309 ,  H04W64/00 ,  H04N2007/17372

摘要： A bidirectional cable television system provides for transmission of signals from cable subscribers downlink in the same direction as the ensemble of television channels which the cable television system is already constructed to deliver. The subscriber signals may be transmitted over the cable in the blanking intervals of a cable television channel, using the T-NET technique described in U.S. Pat. No. 4,750,036. Alternatively, the signals may be carried over a dedicated channel, or transmitted cochannel along a cable television channel carrying ordinary programming by adding the subscriber information to alternating video frames in alternating polarity to achieve visual cancellation. The subscriber signals are collected after the last distribution line amplifier in the cable downlink. The collected signals are transmitted to a central receiver via wireless or other customary means such as a modem. The collected signals may alternatively be transmitted over the air to the central receiver in the blanking intervals of a broadcast television channel using the T-NET technique.

摘要翻译： 双向有线电视系统提供来自电缆用户下行链路的信号的传输方向与有线电视系统已经构建为传送的电视频道的整体相同。 用户信号可以在有线电视频道的消隐间隔内通过电缆传输，使用在美国专利No.4,215,254中描述的T-NET技术。 第4,750,036号。 或者，可以通过将具有交替视频帧的用户信息添加到交替极性以实现视觉消除的方式，通过携带普通节目的有线电视频道的专用信道或发送的同频道来传送信号。 用户信号在电缆下行链路中的最后一个配线放大器之后被收集。 所收集的信号通过诸如调制解调器之类的无线或其它常规手段传送到中央接收机。 也可以采用T-NET技术将所收集的信号通过空中传送到广播电视频道的消隐间隔中的中央接收机。