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公开(公告)号：US5335360A
公开(公告)日：1994-08-02
申请号：US720975
申请日：1991-06-25
CPC分类号： H04W88/08
摘要： A base site circuit (38) for operating in a communication system (10) having a plurality of base sites capable of allocating a communication channel for use by a communication unit (16) in response to a communication channel request from the communication unit. The base site circuit includes a receiver (34) that operates in a low sensitivity mode when there are no communication channel requests received, and that operates in a high sensitivity mode which is activated by a control signal. The base site further includes a transmitter (34) which is activated by the control signal and a control circuit (32) coupled to both the receiver and the transmitter, for controlling the receiver and the transmitter. The control circuit (32) provides the control signal to the transmitter and to the receiver, in response to a communication channel request.
摘要翻译： 一种用于在具有多个基站的通信系统（10）中操作的基站电路（38），所述基站能够响应于来自所述通信单元的通信信道请求而分配通信单元（16）使用的通信信道。 基站电路包括当没有接收到通信信道请求时以低灵敏度模式操作并且以由控制信号激活的高灵敏度模式操作的接收器（34）。 基站还包括由控制信号激活的发射机（34）和耦合到接收机和发射机两者的控制电路（32），用于控制接收机和发射机。 控制电路（32）响应于通信信道请求向发射机和接收机提供控制信号。
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2.发明授权
公开(公告)号：US5430769A
公开(公告)日：1995-07-04
申请号：US980056
申请日：1992-11-23
CPC分类号： H04B7/0814
摘要： The present invention comprises a method and apparatus for selecting one of at least two antennas (202, 204) in a communication unit (200) for use in a wireless communication system (100). A signal is received by a radio frequency receiver during a receiving period from one of the at least two antennas (202,204) currently selected by an antenna switch (206), the signal having a plurality of bits. The receiver is capable of determining the quality of the receive signal by determining if the incoming bits transition periods fall within a predetermined time window. If it is determined by the receiver that the quality of the receive signal is below a predetermined threshold the currently selected antenna (202 or 204) is switched. The currently selected antenna remains selected when the currently selected antenna has been selected within a predetermined amount of time.
摘要翻译： 本发明包括一种在通信单元（200）中选择无线通信系统（100）中的至少两个天线（202,204）中的一个的方法和装置。 在由天线开关（206）当前选择的至少两个天线（202,204）之一的接收周期期间，射频接收机接收信号，该信号具有多个比特。 接收机能够通过确定进入位过渡期是否落入预定时间窗内来确定接收信号的质量。 如果由接收机确定接收信号的质量低于预定阈值，则切换当前选择的天线（202或204）。 当在预定时间内选择了当前选定的天线时，当前选择的天线保持选择。
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公开(公告)号：US5329635A
公开(公告)日：1994-07-12
申请号：US881975
申请日：1992-05-12
CPC分类号： H04W36/30
摘要： A method for seamless transfer of a communication link from a first radio telephone base station to a second radio telephone base station comprises the following steps performed at the first base station: (100) receiving a communication link request from a calling portable radio unit; (102) synchronizing with the calling portable radio unit; (104) determining whether the calling radio has handoff authorization; (108) connecting received data to a second base to allow for synchronization to the calling radio; (112) measuring a first RSSI level at the first base station for the calling radio; (114) determining whether the first RSSI level for the calling radio is below a first handoff threshold; (116) determining a second RSSI level for the calling radio, as measured at the second base station, is above a second handoff threshold, if the first RSSI level for the calling portable radio unit is below the first handoff threshold, (118) determining whether the second RSSI level for the calling portable radio unit is above a second handoff threshold, and (120) alerting the second base station to pick up the communication link. The method further comprises the following step performed at a second base station: (122) commencing to transmit in the frame immediately following the last transmit frame of the first base.
摘要翻译： 一种从第一无线电电话基站到第二无线电话基站的通信链路无缝传送的方法包括在第一基站执行的以下步骤：（100）从呼叫便携式无线电单元接收通信链路请求; （102）与所述呼叫便携式无线电单元同步; （104）确定呼叫无线电是否具有切换授权; （108）将接收的数据连接到第二基站以允许与呼叫无线电同步; （112）测量第一基站处的呼叫无线电的第一RSSI电平; （114）确定所述呼叫无线电的所述第一RSSI电平是否低于第一切换阈值; 如果所述主叫便携式无线电单元的所述第一RSSI电平低于所述第一越区切换阈值，则确定所述呼叫无线电设备的第二RSSI电平（118）在所述第二基站处测量的高于第二切换阈值（118）确定 呼叫便携式无线电单元的第二RSSI电平是否高于第二切换阈值，以及（120）警告第二基站接收通信链路。 该方法还包括在第二基站执行的以下步骤：（122）开始在紧接在第一基站的最后发送帧之后的帧中进行发送。
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4.发明授权
公开(公告)号：US5218630A
公开(公告)日：1993-06-08
申请号：US879436
申请日：1992-05-06
CPC分类号： H04W72/085 , H04M1/72511
摘要： A base station allocates radio channels to radio telephone handsets in a second generation cordless telephone (CT2) communication systems by scanning each channel in a first band, and scanning each channel in a second band to measure an RSS level for each channel scanned. The base station scans the second band at a rate that is substantially faster than the rate at which it scans the first band. If a link request is received on a first channel within the first band, from a calling radio telephone, the base station determines whether the first channel has an RSS level above a predetermined threshold. If the RSS level of the first channel is above the threshold, and the calling radio telephone handset is capable of operating on the second band, the base station re-assigns a second channel, that is within the second band, to the calling radio telephone handset.
摘要翻译： 基站在第二代无绳电话（CT2）通信系统中通过扫描第一频带中的每个信道来分配无线电信道到无线电话手机，并且扫描第二频带中的每个信道以测量每个被扫描的频道的RSS级别。 基站以比其扫描第一频带的速率快得多的速率扫描第二频带。 如果在第一频带内的第一频道上接收到来自呼叫无线电话的链路请求，则基站确定第一频道是否具有高于预定阈值的RSS级别。 如果第一信道的RSS级别高于阈值，并且呼叫无线电话手机能够在第二频带上操作，则基站将第二频道内的第二频道重新分配给主叫无线电话 手机
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公开(公告)号：US5280541A
公开(公告)日：1994-01-18
申请号：US782022
申请日：1991-10-24
CPC分类号： H04L29/06 , H04M1/72505
摘要： A method for re-establishing a communication link that has been lost between a portable unit (406) and a fixed unit or base station (402) provides for a way of quickly re-establishing the lost communication link, on the previously used RF channel. The method is begun by transmitting a link re-establishment code word (900) using MUX 1 after determining that synchronization has been lost (502) for a predetermined period of time (504). This is followed by automatically switching the portable unit (406) from MUX 1 to MUX 3 communication protocol. Followed by re-establishing communication (re-establish synchronization) between the portable (406) and base station (402) in MUX 3 and switching the two communication devices (402 and 406) back to MUX 1 after the communication link has been re-established. The same steps can be followed by base site (402) if it had been the first to detect loss of the communication link.
摘要翻译： 在便携式单元（406）和固定单元或基站（402）之间已经丢失的用于重新建立通信链路的方法提供了在先前使用的RF信道上快速重新建立丢失的通信链路的方式 。 通过在确定同步已经丢失（502）一段预定时间段（504）之后，使用MUX1发送链路重建码字（900），开始该方法。 随后将便携式单元（406）从MUX 1自动切换到MUX 3通信协议。 随后在多路复用器3中重新建立便携式（406）和基站（402）之间的通信（重新建立同步），并且在通信链路被重新连接之后将两个通信设备（402和406）切换回多路复用器1 成立 如果基站是第一个检测到通信链路的丢失，基站（402）可以遵循相同的步骤。
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公开(公告)号：US5203012A
公开(公告)日：1993-04-13
申请号：US833281
申请日：1992-02-10
CPC分类号： H04M1/72511 , H04W16/14 , H04W24/00 , H04W36/06 , H04W76/02
摘要： A method and apparatus for choosing the most optimum communication channel in a system (100) having a plurality of communication channels provides for reduced interference and increased system capacity. By establishing a set of threshold levels and comparing these threshold levels to receive signal strength level measurements for each of the communication channels, a communication device originating a call can be guaranteed of establishing communication using the communication channel with the least chance of being affected by interference or of affecting other channels already in use.
摘要翻译： 用于在具有多个通信信道的系统（100）中选择最佳通信信道的方法和装置提供减少的干扰和增加的系统容量。 通过建立一组阈值电平并将这些阈值电平进行比较以接收每个通信信道的信号强度电平测量值，可以保证发起呼叫的通信设备以最少的机会受到干扰的通信信道建立通信 或影响已经在使用的其他频道。
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公开(公告)号：US5471146A
公开(公告)日：1995-11-28
申请号：US76218
申请日：1993-06-14
CPC分类号： H04B17/318
摘要： A return loss meter (100) for base stations comprises a first transceiver (10) having a first transmitter (12), a first receiver (22 and 30), and a first antenna (20), a second transceiver (50) having a second transmitter (52), a second receiver (62 and 70), and a second antenna (60), wherein the first transceiver and the second transceiver are cross-coupled using at least one directional coupler (16) capable of being switched. The return loss meter includes a device for measuring reflected and transmitted power of the first antenna via a first directional coupler (16) capable of being switched and via a device (74) capable of measuring received signal strength at the second receiver and a device for measuring reflected and transmitted power of the second antenna via a second directional coupler (56) capable of being switched and via a device (34) capable of measuring received signal strength at the first receiver.
摘要翻译： 用于基站的回波损耗计（100）包括具有第一发射机（12），第一接收机（22,30）和第一天线（20）的第一收发器（10），第二收发器（50） 第二发射机（52），第二接收机（62和70）以及第二天线（60），其中所述第一收发机和所述第二收发机使用能够被切换的至少一个定向耦合器（16）进行交叉耦合。 回波损耗计包括用于经由能够被切换的第一定向耦合器（16）来测量第一天线的反射和发射功率的装置，并且经由能够测量第二接收机处的接收信号强度的装置（74） 经由能够切换的第二定向耦合器（56）测量第二天线的反射和发射功率，以及经由能够测量第一接收机的接收信号强度的设备（34）。
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8.发明授权Method and apparatus for employing stored content at receivers to improve efficiency of broadcast system bandwidth use 有权在接收机处采用存储内容以提高广播系统带宽使用效率的方法和装置公开(公告)号：US08275005B2
公开(公告)日：2012-09-25
申请号：US12457023
申请日：2009-05-29
申请人： Paul D. Marko , Craig P. Wadin
发明人： Paul D. Marko , Craig P. Wadin
IPC分类号： H04J3/04
CPC分类号： H04N21/4334 , H04H20/10 , H04H20/40 , H04N21/47202 , H04N21/8455
摘要： The invention relates generally to a receiver unit in a digital broadcast system for receiving a broadcast signal comprising content segments and control data, and generating an output signal using the content segments and previously stored content segments. The previously stored content segments are retrieved from a local memory device using the control data and inserted among the received content segments.
摘要翻译： 本发明一般涉及用于接收包括内容段和控制数据的广播信号的数字广播系统中的接收机单元，以及使用内容片段和先前存储的内容片段生成输出信号。 先前存储的内容片段使用控制数据从本地存储器件检索并插入到所接收的内容片段中。
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9.发明授权Method and apparatus for prompting a reverse channel response from receiver in a digital broadcast system 有权用于在数字广播系统中从接收机提示反向信道响应的方法和装置公开(公告)号：US06686880B1
公开(公告)日：2004-02-03
申请号：US09695315
申请日：2000-10-25
申请人： Paul D. Marko , Craig P. Wadin
发明人： Paul D. Marko , Craig P. Wadin
IPC分类号： G01S302
摘要： The invention relates generally to a digital broadcast system and receivers therein which are configured to allow the use of a reverse channel for transmitting responses to broadcast messages. The digital broadcast system is configured to receive requests for information from a mobile platform device (e.g., a GPS receiver) and broadcast information request messages. The receivers are configured to receive a broadcast information request message and communicate with a telematics-enabled device in a mobile platform such as a cellular telephone to initiate a transmission of a response message therefrom.
摘要翻译： 本发明一般涉及数字广播系统和其中的接收机，其被配置为允许使用反向信道来发送对广播消息的响应。 数字广播系统被配置为从移动平台设备（例如，GPS接收机）和广播信息请求消息接收关于信息的请求。 接收机被配置为接收广播信息请求消息，并且与例如蜂窝电话的移动平台中的具有远程信息处理能力的设备进行通信，以从其发起响应消息的发送。
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公开(公告)号：US20090268567A1
公开(公告)日：2009-10-29
申请号：US12457023
申请日：2009-05-29
申请人： Paul D. Marko , Craig P. Wadin
发明人： Paul D. Marko , Craig P. Wadin
IPC分类号： H04H60/27
CPC分类号： H04N21/4334 , H04H20/10 , H04H20/40 , H04N21/47202 , H04N21/8455
摘要： The invention relates generally to a receiver unit in a digital broadcast system for receiving a broadcast signal comprising content segments and control data, and generating an output signal using the content segments and previously stored content segments. The previously stored content segments are retrieved from a local memory device using the control data and inserted among the received content segments.
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