公开(公告)号：US5940431A

公开(公告)日：1999-08-17

申请号：US771692

申请日：1996-12-23

申请人： Jacobus C. Haartsen ,  Paul W. Dent

发明人： Jacobus C. Haartsen ,  Paul W. Dent

IPC分类号： H04W52/02 ,  H04B1/713

CPC分类号： H04W52/0216

摘要： Establishing a connection between a paging unit and a standby unit in a channel hopping communications system includes activating the standby unit for an activation time period out of every standby time period. During each activation time period, the standby unit monitors a selected channel for receipt of a paging message. The selected channel is selected from a plurality of channels, and, for each subsequent activation time period, the selected channel is a subsequent one of the plurality of channels as specified by a hopping sequence and an internal clock. A page train is repeatedly transmitted from the paging unit to the standby unit, until a response is received from the standby unit. Each page train includes a plurality of paging messages, each paging message being transmitted on a different one of a subset of the plurality of channels. Selection of a page train for transmission by the paging unit may be based on an estimate of the standby unit's internal clock.

摘要翻译： 在频道跳频通信系统中建立寻呼单元和备用单元之间的连接包括在每个待机时间段内激活待机单元的激活时间段。 在每个激活时段期间，待机单元监视所选择的频道以接收寻呼消息。 所选择的信道是从多个信道中选择的，并且对于每个随后的激活时间段，所选择的信道是由跳频序列和内部时钟指定的多个信道中的后续的信道。 页面列表从寻呼单元重复发送到备用单元，直到从备用单元接收到响应。 每个列车包括多个寻呼消息，每个寻呼消息在多个信道的子集中的不同的一个上发送。 通过寻呼单元进行传输的页面列表的选择可以基于待机单元的内部时钟的估计。

公开(公告)号：US5535259A

公开(公告)日：1996-07-09

申请号：US412719

申请日：1995-03-29

申请人： Paul W. Dent ,  Jacobus C. Haartsen

发明人： Paul W. Dent ,  Jacobus C. Haartsen

IPC分类号： H04J3/00 ,  H04B15/00 ,  H04J3/16 ,  H04L12/28 ,  H04L12/56 ,  H04W12/06 ,  H04W16/16 ,  H04W16/32 ,  H04W28/26 ,  H04W74/08 ,  H04W84/14 ,  H04Q7/30 ,  H04Q7/22

CPC分类号： H04W16/16 ,  H04W12/06 ,  H04W74/006 ,  H04W16/32 ,  H04W28/26 ,  H04W74/0833 ,  H04W84/045 ,  H04W84/14

摘要： Transceiver frequency and optionally power level are allocated to a radio personal communications system which includes a base station connected to a wire telephone network and a cellular terminal operating within a region of a wide area cellular network to minimize interference between communications over the wide area cellular network and communications between the base station and the cellular terminal. The same cellular terminal may thus be used to communicate over the lower cost wire network when within range of the base station and over the wide area cellular network otherwise. The frequency for communications between the cellular terminal and the base station are optionally assigned by the operator of the wide area cellular network so appropriate frequencies and power levels can be assigned for base stations, to minimize same channel interference with the wide area cellular network.

公开(公告)号：US5581597A

公开(公告)日：1996-12-03

申请号：US446002

申请日：1995-05-19

申请人： Paul W. Dent ,  Jacobus C. Haartsen

发明人： Paul W. Dent ,  Jacobus C. Haartsen

IPC分类号： H04J3/00 ,  H04B15/00 ,  H04J3/16 ,  H04L12/28 ,  H04L12/56 ,  H04W12/06 ,  H04W16/16 ,  H04W16/32 ,  H04W28/26 ,  H04W74/08 ,  H04W84/14 ,  H04Q7/22 ,  H04Q7/30

CPC分类号： H04W16/16 ,  H04W12/06 ,  H04W74/006 ,  H04W16/32 ,  H04W28/26 ,  H04W74/0833 ,  H04W84/045 ,  H04W84/14

摘要： Transceiver frequency and optionally power level are allocated to a radio personal communications system which includes a base station connected to a wire telephone network and a cellular terminal operating within a region of a wide area cellular network to minimize interference between communications over the wide area cellular network and communications between the base station and the cellular terminal. The same cellular terminal may thus be used to communicate over the lower cost wire network when within range of the base station and over the wide area cellular network otherwise. The frequency for communications between the cellular terminal and the base station are optionally assigned by the operator of the wide area cellular network so appropriate frequencies and power levels can be assigned for base stations, to minimize same channel interference with the wide area cellular network.

摘要翻译： 收发机频率和可选的功率电平被分配给无线电个人通信系统，该无线电个人通信系统包括连接到有线电话网络的基站和在广域蜂窝网络的区域内操作的蜂窝终端，以最小化在广域蜂窝网络上的通信之间的干扰 以及基站和蜂窝终端之间的通信。 因此，相同的蜂窝终端可以用于在基站的范围内以及广域蜂窝网络上通过较低成本的有线网络进行通信。 蜂窝终端和基站之间的通信频率可选地由广域蜂窝网络的运营商分配，从而可以为基站分配适当的频率和功率电平，以最小化与广域蜂窝网络的相同信道干扰。

公开(公告)号：US5526402A

公开(公告)日：1996-06-11

申请号：US446037

申请日：1995-05-19

申请人： Paul W. Dent ,  Jacobus C. Haartsen

发明人： Paul W. Dent ,  Jacobus C. Haartsen

IPC分类号： H04J3/00 ,  H04B15/00 ,  H04J3/16 ,  H04L12/28 ,  H04L12/56 ,  H04W12/06 ,  H04W16/16 ,  H04W16/32 ,  H04W28/26 ,  H04W74/08 ,  H04W84/14 ,  H04Q7/22 ,  H04Q7/30

CPC分类号： H04W16/16 ,  H04W12/06 ,  H04W74/006 ,  H04W16/32 ,  H04W28/26 ,  H04W74/0833 ,  H04W84/045 ,  H04W84/14

摘要： Transceiver frequency and optionally power level are allocated to a radio personal communications system which includes a base station connected to a wire telephone network and a cellular terminal operating within a region of a wide area cellular network to minimize interference between communications over the wide area cellular network and communications between the base station and the cellular terminal. The same cellular terminal may thus be used to communicate over the lower cost wire network when within range of the base station and over the wide area cellular network otherwise. The frequency for communications between the cellular terminal and the base station are optionally assigned by the operator of the wide area cellular network so appropriate frequencies and power levels can be assigned for base stations, to minimize same channel interference with the wide area cellular network.

摘要翻译： 收发机频率和可选的功率电平被分配给无线电个人通信系统，该无线电个人通信系统包括连接到有线电话网络的基站和在广域蜂窝网络的区域内操作的蜂窝终端，以最小化在广域蜂窝网络上的通信之间的干扰 以及基站和蜂窝终端之间的通信。 因此，相同的蜂窝终端可以用于在基站的范围内以及广域蜂窝网络上通过较低成本的有线网络进行通信。 蜂窝终端和基站之间的通信频率可选地由广域蜂窝网络的运营商分配，从而可以为基站分配适当的频率和功率电平，以最小化与广域蜂窝网络的相同信道干扰。

公开(公告)号：US06091954A

公开(公告)日：2000-07-18

申请号：US831536

申请日：1997-04-07

申请人： Jacobus C. Haartsen ,  Paul W. Dent

发明人： Jacobus C. Haartsen ,  Paul W. Dent

IPC分类号： H04M15/16 ,  H04B7/005 ,  H04B7/26 ,  H04M15/00 ,  H04M15/12 ,  H04W4/24 ,  H04W8/18 ,  H04W8/22 ,  H04W16/12 ,  H04W28/18 ,  H04W52/28 ,  H04W72/08

CPC分类号： H04W28/18 ,  H04M15/00 ,  H04M15/12 ,  H04W4/24 ,  H04W52/283 ,  H04W8/22 ,  H04M2215/2026 ,  H04M2215/22 ,  H04M2215/32 ,  H04W16/12 ,  H04W28/16 ,  H04W28/24 ,  H04W48/20 ,  H04W72/04 ,  H04W72/08 ,  H04W8/18

摘要： In a multi-reuse level cellular communications system, a channel is assigned for use by a mobile unit by first determining whether the mobile unit is a non-enhanced mobile unit or an enhanced mobile unit. Then a determination is made as to the type of communication service being requested. A minimum link quality required by the mobile unit can then be established based on factors that include the mobile unit type and the type of communication service being requested. A base station that has the necessary receiver detection capabilities and transceiver processing capabilities is then selected, and a channel, corresponding to a highest reuse plan, available to the base station is assigned to the call.

摘要翻译： 在多重复用级蜂窝通信系统中，通过首先确定移动单元是非增强型移动单元还是增强型移动单元，由移动单元分配信道以供使用。 然后确定所请求的通信服务的类型。 然后可以基于包括移动单元类型和所请求的通信服务的类型的因素来建立移动单元所需的最小链路质量。 然后选择具有必要的接收机检测能力和收发器处理能力的基站，并且将对基站可用的对应于最高重用计划的信道分配给该呼叫。

公开(公告)号：US5428668A

公开(公告)日：1995-06-27

申请号：US148828

申请日：1993-11-04

申请人： Paul W. Dent ,  Jacobus C. Haartsen

发明人： Paul W. Dent ,  Jacobus C. Haartsen

IPC分类号： H04J3/00 ,  H04B15/00 ,  H04J3/16 ,  H04L12/28 ,  H04L12/56 ,  H04W12/06 ,  H04W16/16 ,  H04W16/32 ,  H04W28/26 ,  H04W74/08 ,  H04W84/14 ,  H04Q7/22 ,  H04Q7/30

CPC分类号： H04W16/16 ,  H04W12/06 ,  H04W74/006 ,  H04W16/32 ,  H04W28/26 ,  H04W74/0833 ,  H04W84/045 ,  H04W84/14

摘要： Transceiver frequency and optionally power level are allocated to a radio personal communications system which includes a base station connected to a wire telephone network and a cellular terminal operating within a region of a wide area cellular network to minimize interference between communications over the wide area cellular network and communications between the base station and the cellular terminal. The same cellular terminal may thus be used to communicate over the lower cost wire network when within range of the base station and over the wide area cellular network otherwise. The frequency for communications between the cellular terminal and the base station are optionally assigned by the operator of the wide area cellular network so appropriate frequencies and power levels can be assigned for base stations, to minimize same channel interference with the wide area cellular network.

摘要翻译： 收发机频率和可选的功率电平被分配给无线电个人通信系统，该无线电个人通信系统包括连接到有线电话网络的基站和在广域蜂窝网络的区域内操作的蜂窝终端，以最小化在广域蜂窝网络上的通信之间的干扰 以及基站和蜂窝终端之间的通信。 因此，相同的蜂窝终端可以用于在基站的范围内以及广域蜂窝网络上通过较低成本的有线网络进行通信。 蜂窝终端和基站之间的通信频率可选地由广域蜂窝网络的运营商分配，从而可以为基站分配适当的频率和功率电平，以最小化与广域蜂窝网络的相同信道干扰。

公开(公告)号：US07016372B2

公开(公告)日：2006-03-21

申请号：US10079572

申请日：2002-02-22

申请人： Jacobus C. Haartsen

发明人： Jacobus C. Haartsen

IPC分类号： H04L12/43

CPC分类号： H04W72/10 ,  H04W74/04 ,  H04W74/06 ,  H04W84/18

摘要： One of a number, n, of slave devices is selected for express or implicit polling by a master device in a communication system that transmits during individual ones of a number of sequentially occurring time slots. This is done by assigning a corresponding priority level to each slave device, wherein at least two slave devices are assigned different corresponding priority levels. A corresponding count parameter and a corresponding initial count value are assigned to each of the slave devices. For each of the slave devices, the corresponding count parameter is initialized to the corresponding initial count value. For each successive time slot, each of the count parameters is adjusted (e.g., by decrementing). A highest priority slave device whose corresponding count parameter has reached or passed a predetermined value is selected for polling.

公开(公告)号：US4998261A

公开(公告)日：1991-03-05

申请号：US450891

申请日：1989-12-14

申请人： Hans van Driest ,  Jacobus C. Haartsen ,  Bruce T. Tuch ,  Maarten Visee

发明人： Hans van Driest ,  Jacobus C. Haartsen ,  Bruce T. Tuch ,  Maarten Visee

IPC分类号： H04B1/707

CPC分类号： H04B1/7093 ,  H04B1/70712

摘要： In a digital data receiver (80) for demodulating a direct sequence spread spectrum differential phase shift keyed data signal, the signal is applied to the input transducer (140) of a SAW device (100) which has first and second output transducers (142, 144) spaced apart on the SAW substrate (130) so as to produce first and second output signals on output lines (102, 104), which are relatively delayed by a time corresponding to a symbol period. The output transducers are of identical construction and are matched to the spread spectrum code utilized in the data signal. Thus, a single SAW device (100) effects both correlation and delay. The output signals on the output lines (102, 104) are processed by a circuit including multipliers (106, 110) and a phase shifter (108) to produce output data signals representing the received data.

公开(公告)号：US06724247B2

公开(公告)日：2004-04-20

申请号：US10234180

申请日：2002-09-05

申请人： Sven Mattisson ,  Jacobus C. Haartsen

发明人： Sven Mattisson ,  Jacobus C. Haartsen

IPC分类号： H03D300

CPC分类号： H03D3/005 ,  H03K9/06

摘要： An FM demodulator compensates for DC offset by detecting the positive peak value of the frequency demodulated signal (D1, C2, R1) and the negative peak value of the frequency demodulated signal (D2, C3, R2). The mean of the positive and negative peak values is determined (C1, R3, R4) to produce an estimation of a DC offset value. This estimated DC offset value is then used to compensate for DC offset in the frequency demodulated signal. This circuit has the advantage of enabling the DC offset to be calculated without requiring complex digital signalling processing, and without requiring the input signal to have a zero mean. A signal strength signal RSSI may be used to disconnect the DC offset compensation circuitry during periods when the input signal strength is weak.

摘要翻译： FM解调器通过检测频率解调信号（D1，C2，R1）的正峰值和频率解调信号（D2，C3，R2）的负峰值来补偿DC偏移。 确定正和负峰值的平均值（C1，R3，R4）以产生DC偏移值的估计。 然后使用该估计的DC偏移值来补偿频率解调信号中的DC偏移。 该电路具有使得能够计算DC偏移而不需要复杂的数字信号处理，而不需要输入信号具有零均值的优点。 信号强度信号RSSI可以用于在输入信号强度较弱的时段断开DC偏移补偿电路。

公开(公告)号：US06473412B1

公开(公告)日：2002-10-29

申请号：US09272212

申请日：1999-03-19

申请人： Jacobus C. Haartsen

发明人： Jacobus C. Haartsen

IPC分类号： H04Q700

CPC分类号： H04W48/14 ,  H04B1/713 ,  H04B7/2621 ,  H04W56/00

摘要： An uncoordinated frequency hopping cellular system includes a mobile unit and a number of base stations. The mobile unit determines which base stations are in a geographical location defined by a location of the mobile unit. This determination is made by transmitting one or more inquiry messages, and receiving response information transmitted by responding base stations. The mobile unit then selects, for use by the mobile unit, one of the base stations from the set of base stations. Each of the base stations receives at least one of the inquiry messages, and transmits the response information to the mobile unit in response to the at least one received inquiry message. The mobile unit determines synchronization information from the response information, and uses this to establish communication with the selected base station.

摘要翻译： 不协调的跳频蜂窝系统包括移动单元和多个基站。 移动单元确定哪些基站在由移动单元的位置定义的地理位置中。 通过发送一个或多个查询消息和接收响应基站发送的响应信息来进行该确定。 移动单元然后从移动单元中选择一组基站中的一个基站。 每个基站接收至少一个查询消息，并且响应于所接收的至少一个查询消息将响应信息发送到移动单元。 移动单元根据响应信息确定同步信息，并使用它来建立与所选基站的通信。