公开(公告)号：US06393064B1

公开(公告)日：2002-05-21

申请号：US09108404

申请日：1998-07-01

Applicant: Tetsuya Nagai ,  Naoya Morita ,  Masahide Morozumi

Inventor： Tetsuya Nagai ,  Naoya Morita ,  Masahide Morozumi

IPC: H04L2700

CPC classification number: H04L5/1453 ,  H04L27/0008

Abstract: To perform communication at a higher speed than in the past using a new communication device without giving influence on the existing slave communication device, on a master device of a communication system such as PHS, there are provided two series of modulators and demodulators for conventional speed and for higher speed, the two different speeds being changeable by a changeover switch. A slave device to be added newly is also designed in almost the same configuration. In the link setup phase, an information to request change of modulation method is notified together with a request of communication from the slave device to the master device. From the master device, an information to specify time slots to be used in the communication phase and an information to specify modulation method are notified to the slave device. In the communication phase, communication is performed using the modulation method and the time slots as specified. The slave device can select the modulation method corresponding to the transmitting speed as required. In case the modulation method is not specified from the slave device, the same modulation method as that of the link setup phase is used in the communication phase, and the existing slave device not equipped with the means to specify the modulation method can be used without any change.

Abstract translation: 为了在不影响现有从属通信设备的情况下以比以往更高的速度进行通信，在诸如PHS的通信系统的主设备上，提供了两个用于常规速度的调制器和解调器系列 并且为了更高的速度，两个不同的速度可以由切换开关改变。 新增的从设备也设计成几乎相同的配置。 在链路建立阶段，通过从从设备到主设备的通信请求，通知请求变更调制方式的信息。 从主设备，向从设备通知用于指定要在通信阶段中使用的时隙的信息和指定调制方法的信息。 在通信阶段，通过调制方式和规定的时隙进行通信。 从设备可以根据需要选择对应于传输速度的调制方式。 在没有从从设备指定调制方法的情况下，在通信阶段使用与链路建立阶段相同的调制方法，并且可以在没有配备指定调制方法的装置的现有从设备中使用现有的从设备，而不需要 任何改变。

公开(公告)号：US06327310B1

公开(公告)日：2001-12-04

申请号：US09134297

申请日：1998-08-14

Applicant: Bertrand M. Hochwald ,  Thomas Louis Marzetta

Inventor： Bertrand M. Hochwald ,  Thomas Louis Marzetta

IPC: H04L2700

CPC classification number: H04B7/0669 ,  H04L1/0612 ,  H04L1/0618

Abstract: Disclosed is a modulation method for wireless signal transmission. Each message that is transmitted is made up of a sequence of signals, each selected from a constellation of L such signals, L a positive integer. Each transmitted signal is distributed spatially across a transmitting antenna array, and is also distributed in time. Thus, each signal may be represented as a T×M matrix, in which each of the M columns represents a distinct antenna of the array, and each of the T rows represents a distinct time interval. Each entry in this matrix represents a complex baseband voltage amplitude. Each of these signal matrices is proportional to a matrix having orthonormal columns.

Abstract translation: 公开了一种用于无线信号传输的调制方法。 发送的每个消息由一系列信号组成，每个信号序列从L个这样的信号的星座中选出，L是正整数。 每个发送的信号在发射天线阵列上空间分布，并且也在时间上分布。 因此，每个信号可以表示为TxM矩阵，其中M列中的每一个表示阵列的不同天线，并且T行中的每一个表示不同的时间间隔。 该矩阵中的每个条目表示复基带电压幅度。 这些信号矩阵中的每一个与具有正交列的矩阵成比例。

公开(公告)号：US06178207B1

公开(公告)日：2001-01-23

申请号：US09005181

申请日：1998-01-09

Applicant: Wayne E. Richards ,  James W. Schafer ,  Lloyd E. Landen

Inventor： Wayne E. Richards ,  James W. Schafer ,  Lloyd E. Landen

IPC: H04L2700

CPC classification number: G01S5/14 ,  H04L27/0008

Abstract: An ASIC chip interfaces with multiple data protocol specifications and includes a demodulator for data messages in a protocol at a first data rate, such as the TACTS protocol, and includes a demodulator for data messages in a protocol at a second data rate, such as the NACTS protocol. The ASIC chip is installed in a system for the transmission and receipt of data messages in the two protocols, and operates under control of a microprocessor, which selects between the available message protocols. Additional data rates and protocols beyond the first two can be accommodated. The different demodulators share processing structures that reduce the circuit components otherwise necessary for operation. This reduces the weight and power requirements of the chip. In this way, the ASIC chip provides a processing system that can operate with multiple data protocol specifications and data rates, while ensuring accurate and reliable detection of data streams in an aircraft operational environment.

Abstract translation: ASIC芯片与多个数据协议规范接口，并且包括用于以第一数据速率的协议（例如TACTS协议）的数据消息的解调器，并且包括用于以第二数据速率的协议中的数据消息的解调器，诸如 NACTS协议 ASIC芯片安装在用于传输和接收两个协议中的数据消息的系统中，并且在微处理器的控制下操作，微处理器在可用消息协议之间进行选择。 额外的数据速率和协议超出前两个可以适应。 不同的解调器共享减少操作所需电路元件的处理结构。 这降低了芯片的重量和功率要求。 以这种方式，ASIC芯片提供了可以以多种数据协议规范和数据速率操作的处理系统，同时确保在飞行器操作环境中准确可靠地检测数据流。

公开(公告)号：US06760382B1

公开(公告)日：2004-07-06

申请号：US09402179

申请日：2000-02-04

Applicant: Norihiko Mizobata

Inventor： Norihiko Mizobata

IPC: H04L2700

CPC classification number: H04L12/40006 ,  H04L12/18 ,  H04L12/40013 ,  H04L12/403 ,  H04L29/06 ,  H04L29/06027 ,  H04L67/24 ,  H04L67/306 ,  H04L67/325 ,  H04L67/327 ,  H04L69/22 ,  H04L69/329 ,  H04N7/1675 ,  H04N21/26606 ,  H04N21/4623

Abstract: A digital communication system comprises a transmitter for sequentially transmitting predetermined format data; and a plurality of receivers 102 each including a data selecting apparatus 104 for selecting required data from received data group and outputting selected data. The transmitter transmits data to the receivers in one of a first transmission mode having group destination directing information indicating that the data is to be transmitted to a receiving group consisting of predetermined receivers of the plurality of receivers, group specifying information for specifying a receiving group of receiving groups to which the data is to be transmitted, and in-group identification information for identifying a receiver in an arbitrary receiving group to which the data is to be transmitted, a second transmission mode having the group destination directing information and the group specifying information are included in the data, and a third transmission mode having the group destination directing information.

Abstract translation: 数字通信系统包括用于顺序发送预定格式数据的发射机; 以及多个接收机102，每个接收机102包括用于从接收的数据组中选择所需数据并输出所选择的数据的数据选择装置104。 所述发射机以具有指示将要发送所述数据的组目的地定向信息的第一发送模式中的一个向所述接收机发送数据到由所述多个接收机中的预定接收机组成的接收组，用于指定所述接收组的接收组的组指定信息 用于识别要发送数据的任意接收组中的接收机的组内识别信息，具有组目的地导向信息和组指定信息的第二发送模式 被包括在数据中，以及具有组目的地定向信息的第三传输模式。

公开(公告)号：US06741657B1

公开(公告)日：2004-05-25

申请号：US09593403

申请日：2000-06-14

Applicant: Josef Hoelzle

Inventor： Josef Hoelzle

IPC: H04L2700

CPC classification number: H04L25/08

Abstract: In a circuit arrangement for transmitting impulses via a transmission path which allows short pulses to be transmitted via a longer transmission path, for example within integrated circuits, a frequency divider is provided having an input at which the pulses to be transmitted are present and an output connected to the transmission path. Further, a frequency multiplier is provided, whose input is connected to the transmission path and having an output at which the transmitted impulses are present.

Abstract translation: 在用于通过传输路径发送脉冲的电路装置中，该传输路径允许例如在集成电路内通过较长的传输路径发送短脉冲，提供了分频器，其中存在要传输的脉冲的输入端和输出端 连接到传输路径。 此外，提供了一个倍频器，其输入连接到传输路径并且具有存在发送的脉冲的输出。

公开(公告)号：US06724827B1

公开(公告)日：2004-04-20

申请号：US09318314

申请日：1999-05-25

Applicant: Stellios J. Patsiokas ,  Paul Marko ,  Craig Wadin

Inventor： Stellios J. Patsiokas ,  Paul Marko ,  Craig Wadin

IPC: H04L2700

CPC classification number: H04B7/18523 ,  H04L5/06

Abstract: A communications system and method in which first and second carrier frequencies are transmitted from a first transmitter. The first carrier frequency is at a first low end of a band and the second carrier is at a second higher end of the band. Third and fourth carrier frequencies are transmitted from a second transmitter. The third carrier is at the lower end of the band but higher in frequency than the first carrier and the fourth carrier is at the higher end of the band but lower in frequency than the second carrier. Fifth and sixth carrier signals are transmitted from a third transmitter. The fifth carrier signal is higher in frequency than the third carrier signal and the sixth carrier signal is lower in frequency than the fourth carrier signal. In the illustrative embodiment, the first transmitter is located on a first satellite, the second transmitter is located on a second satellite and the third transmitter is located on a terrestrial repeater. The information modulated onto the first, third and fifth carriers is identical such that the first, third and fifth carriers comprise a first ensemble. The information modulated onto the second, fourth and sixth carriers comprise a second ensemble. In the illustrative embodiment, the inventive system includes plural receivers adapted to simultaneously receive first and second ensembles. The first ensemble includes a first signal from a first satellite, a first signal from a second satellite and a first signal from a terrestrial repeater. Likewise, the second ensemble includes a second signal from the first satellite, a second signal from the second satellite and a second signal from the terrestrial repeater. The inventive receiver further includes a mechanism for selectively outputting signals transmitted within the first and second ensembles.

Abstract translation: 一种其中从第一发射机发送第一和第二载波频率的通信系统和方法。 第一载波频率在频带的第一低端，第二载波位于频带的第二较高端。 从第二发射机发送第三和第四载波频率。 第三载波在频带的下端，但频率高于第一载波，第四载波位于频带的较高端，但频率比第二载波低。 第五和第六载波信号从第三发射机传输。 第五载波信号的频率高于第三载波信号，第六载波信号的频率比第四载波信号低。 在说明性实施例中，第一发射机位于第一卫星上，第二发射机位于第二卫星上，第三发射机位于地面中继器上。 调制到第一，第三和第五载体上的信息是相同的，使得第一，第三和第五载体包括第一集合。 调制到第二，第四和第六载体上的信息包括第二组合。 在说明性实施例中，本发明的系统包括适于同时接收第一和第二组合的多个接收器。 第一集合包括来自第一卫星的第一信号，来自第二卫星的第一信号和来自陆地中继器的第一信号。 类似地，第二组合包括来自第一卫星的第二信号，来自第二卫星的第二信号和来自地面中继器的第二信号。 本发明的接收机还包括用于选择性地输出在第一和第二集合内传输的信号的机构。

公开(公告)号：US06693969B1

公开(公告)日：2004-02-17

申请号：US09689288

申请日：2000-10-11

Applicant: Antonio J. Montalvo ,  Simon Atkinson

Inventor： Antonio J. Montalvo ,  Simon Atkinson

IPC: H04L2700

CPC classification number: H03C3/0991 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0966 ,  H03C3/0983 ,  H03C5/00 ,  H03L7/185 ,  H04L27/20

Abstract: Phase-locked loop methods and structures are provided for generating modulated communication signals with nonconstant envelopes. These methods and structures realize the improved communication performance of nonconstant-envelope modulations with the upconversion advantages of phase-locked loops. The structures include transmitters in which a phase-locked loop is augmented with first and second feedforward paths that substantially restore phase and amplitude information to a transmit signal that is generated by a voltage-controlled oscillator of the phase-locked loop. The first feedforward path is configured to realize a path transfer function of s/Kv wherein the voltage-controlled oscillator has a transfer function of Kv/s. The second feedforward path extracts an envelope-correction signal from the modulated intermediate-frequency signal and a variable-gain output amplifier amplifies the transmit signal with a gain that responds to the envelope-correction signal.

Abstract translation: 提供锁相环方法和结构用于生成具有非恒定信封的调制通信信号。 这些方法和结构通过锁相环的上转换优点实现了非恒定包络调制的改进的通信性能。 该结构包括发射机，其中通过第一和第二前馈路径来增加锁相环路，基本上将相位和幅度信息恢复到由锁相环路的压控振荡器产生的发射信号。 第一前馈路径被配置为实现s / Kv的路径传递函数，其中压控振荡器具有Kv / s的传递函数。 第二前馈路径从调制的中频信号中提取包络校正信号，并且可变增益输出放大器以对包络校正信号作出响应的增益来放大发射信号。

公开(公告)号：US06625223B1

公开(公告)日：2003-09-23

申请号：US09423502

申请日：2000-01-04

Applicant: Bernhard Wimmer ,  Thomas Stockhammer

Inventor： Bernhard Wimmer ,  Thomas Stockhammer

IPC: H04L2700

CPC classification number: H04L7/042 ,  H04L29/06 ,  H04L29/06027 ,  H04L65/607 ,  H04L69/22

Abstract: A method and corresponding apparatus first encodes digital data by grouping the data into a data segment. A particular length of the data segment is placed into check information encoded within the data segment. The encoded data segments are then transmitted from a first computer to a second computer that receives and decodes the data segments. The second computer decodes the received data segments dependent on the particular length information that was placed in the check information during encoding of the data segment. Decoding dependent upon the particular length information provides dependable synchronization and improved resistance to the introduction of errors, accordingly.

Abstract translation: 方法和相应的装置首先通过将数据分组成数据段来对数字数据进行编码。 数据段的特定长度被放置在数据段内编码的检查信息中。 然后将编码的数据段从第一计算机发送到接收和解码数据段的第二计算机。 第二计算机依赖于在数据段的编码期间放置在检查信息中的特定长度信息来解码接收到的数据段。 相应地，取决于特定长度信息的解码提供可靠的同步和改进的对错误引入的抵抗力。

公开(公告)号：US06625222B1

公开(公告)日：2003-09-23

申请号：US09397402

申请日：1999-09-16

Applicant: James G. Bertonis ,  Robert A. Buaas

Inventor： James G. Bertonis ,  Robert A. Buaas

IPC: H04L2700

CPC classification number: H04L5/06

Abstract: An apparatus and method is described for providing high-speed wireless upstream data transmission using cable-compatible modems. The data is modulated by a cable-compatible modem and upconverted to a wireless channel by a frequency translator. The average field strength of the transmitted signal is constrained by controlling the duty cycle, and may be more accurately constrained by additionally controlling the gain of the frequency translator through feedback. Limiting the average field strength permits transmission over unlicenced wireless channels.

Abstract translation: 描述了使用电缆兼容调制解调器提供高速无线上行数据传输的装置和方法。 数据由电缆兼容的调制解调器调制并通过频率转换器上变频到无线信道。 通过控制占空比来限制发射信号的平均场强，并且可以通过反馈另外控制频率变换器的增益来更精确地约束发射信号的平均场强。 限制平均场强允许通过未经许可的无线信道进行传输。

公开(公告)号：US06584158B1

公开(公告)日：2003-06-24

申请号：US09362802

申请日：1999-07-28

Applicant: Takeshi Ito ,  Masaharu Yoshimori ,  Eiji Kawai

Inventor： Takeshi Ito ,  Masaharu Yoshimori ,  Eiji Kawai

IPC: H04L2700

CPC classification number: H04W88/023

Abstract: An information transmission/reception system includes a radio paging data transmitter equipped with a data segmentation block which segments transmission data into transmission data segmentation units to obtain data segments, and an information identification number addition block which adds a plurality of pieces of identification information to each data segment in order to identify the transmission data. A sequence information addition block adds sequence information to each data segment in the sequence in which it is segmented, and a transmission processing block which performs transmission processing so that data segments to which different identification information is added are assigned within a single data transmission cycle. A radio paging data receiver of the information transmission/reception system is equipped with an information identification number discrimination block which performs the discrimination of data segments from the information identification number. The receiver further includes a data restoration block which restores the data segments for each identification information number stored in a memory based on the sequence information.

Abstract translation: 信息发送/接收系统包括：无线电寻呼数据发射机，其配备有将发送数据分割成发送数据分割单元以获得数据段的数据分段块;以及信息识别号码相加块，其将多条识别信息添加到每个 数据段以便识别传输数据。 序列信息添加块将序列信息添加到其被分割的序列中的每个数据段，以及传输处理块，其执行发送处理，使得在单个数据传输周期内分配不同的标识信息的数据段。 信息发送/接收系统的无线寻呼数据接收机配备有从信息识别号码执行数据段的鉴别的信息识别号码识别块。 接收机还包括数据恢复块，其基于序列信息恢复存储在存储器中的每个识别信息号的数据段。