公开(公告)号：US4430756A

公开(公告)日：1984-02-07

申请号：US350981

申请日：1982-02-22

申请人： Rodney A. Dolman ,  Gregory N. Mears

发明人： Rodney A. Dolman ,  Gregory N. Mears

IPC分类号： H04B1/40 ,  H04B1/50 ,  H04B1/44

CPC分类号： H04B1/50 ,  H04B1/408

摘要： An oscillator is controlled so that it produces the correct frequency in the transmitting condition, and so that it produces a slightly different frequency in the receiving condition. This is achieved by a circuit which supplies a first control voltage to the oscillator for transmitting and which supplies a second and different control voltage to the oscillator for receiving. This second and different control voltage causes the oscillator frequency in the receiving condition to be different so that there is no interference to or improper operation of a repeater system. The circuit also prevents any modulation signals from reaching the oscillator in the receiving condition, thus preventing false signals or other problems.

摘要翻译： 控制振荡器使得其在发送状态下产生正确的频率，并且使得其在接收状态下产生稍微不同的频率。 这是通过向振荡器提供第一控制电压以传输并向振荡器提供第二和不同的控制电压以供接收的电路来实现的。 该第二和不同的控制电压导致接收状态下的振荡器频率不同，使得不对中继器系统产生干扰或不正确的操作。 该电路还防止任何调制信号在接收状态下到达振荡器，从而防止假信号或其他问题。

公开(公告)号：US5966646A

公开(公告)日：1999-10-12

申请号：US855102

申请日：1997-05-13

申请人： Ross W. Lampe ,  Rodney A. Dolman

发明人： Ross W. Lampe ,  Rodney A. Dolman

IPC分类号： H03D7/16 ,  H03J5/24 ,  H04B1/26 ,  H04B17/02

CPC分类号： H04B1/006 ,  H03D7/163 ,  H03J5/244 ,  H04B1/005 ,  H04B1/26 ,  H03B2200/0048

摘要： A simplified structure is disclosed for a dual-band, double-conversion superheterodyne receiver. All mixer-injection signals are generated by combining the outputs of two phase-locked frequency synthesizers driven by a single reference oscillator. The output of one synthesizer injects the receiver's second mixer, which converts signals from the first intermediate frequency to the second intermediate frequency. The output of the other synthesizer has two uses: (1) it provides first mixer injection needed to tune the receiver to a primary band, and (2) it is mixed with the output of the first synthesizer to provide the first mixer injection needed to tune the receiver to an alternate band.

摘要翻译： 公开了一种双频双转换超外差接收机的简化结构。 通过组合由单个参考振荡器驱动的两个锁相频率合成器的输出来产生所有混频器注入信号。 一个合成器的输出注入接收机的第二个混频器，它将信号从第一个中频转换成第二个中频。 另一个合成器的输出有两个用途：（1）它提供了将接收机调谐到主要频带所需的第一个混合器注入，和（2）它与第一个合成器的输出混合，以提供第一个混合器注入， 将接收机调谐到另一个频带。

公开(公告)号：US06831907B2

公开(公告)日：2004-12-14

申请号：US09945001

申请日：2001-08-31

申请人： Rodney A. Dolman ,  Paul W. Dent

发明人： Rodney A. Dolman ,  Paul W. Dent

IPC分类号： H04B7212

CPC分类号： H04H20/33

摘要： A method of broadcasting commercial FM services in a digital format in at least one bitstream comprises time-division multiplexing the bitstream(s) into one or more channels comprising a data frame, and frequency modulating the data frames around a single carrier frequency into a commercial FM broadcast signal. The modulation may comprise GMSK or 8-PSK, and multiple data frame types may be interleaved. The signal is transmitted on a commercial FM broadcast station such that substantially the entire spectrum of the transmission comprises the digital data frames. The bit rate(s) of the digital bitstream(s) may be monitored, and the bitstream(s) may be reallocated to channels in the data frames based on changes in the bit rate(s). Analog and digital formats may be broadcast simultaneously on non-adjacent commercial FM broadcast carrier channels. A receiver is operative to extract and decode content from a digital format FM broadcast signal.

摘要翻译： 在至少一个比特流中以数字格式广播商业FM服务的方法包括将比特流时分复用为包括数据帧的一个或多个信道，以及将单个载波频率周围的数据帧频率调制成商业 FM广播信号。 调制可以包括GMSK或8-PSK，并且多个数据帧类型可以被交织。 该信号在商业FM广播站上传输，使得传输的整个频谱基本上包括数字数据帧。 可以监视数字比特流的比特率（s），并且可以基于比特率的变化将比特流重新分配到数据帧中的信道。 模拟和数字格式可以在非相邻商业FM广播载波信道上同时广播。 接收机可操作地从数字格式FM广播信号中提取和解码内容。

公开(公告)号：US06484038B1

公开(公告)日：2002-11-19

申请号：US09679301

申请日：2000-10-06

申请人： Charles Gore ,  Rodney A. Dolman ,  Paul W. Dent

发明人： Charles Gore ,  Rodney A. Dolman ,  Paul W. Dent

IPC分类号： H04B138

CPC分类号： H04B1/0057 ,  H03D7/163 ,  H04B1/005 ,  H04B1/006 ,  H04B1/405

摘要： A mobile radio telephone having a simplified architecture including a reduced number of integrated circuits and a reduced number of RF connections. A dual band, dual mode mobile phone can be constructed using either a single crystal reference oscillator or two crystals such that alternative symbol rates, channel spacings, or transmit/receive duplex spacings can be achieved.

摘要翻译： 具有简化架构的移动无线电话，其包括减少数量的集成电路和减少数量的RF连接。 双频双模移动电话可以使用单晶参考振荡器或两个晶体构造，以便可以实现替代符号速率，信道间隔或发送/接收双工间隔。

公开(公告)号：US5852772A

公开(公告)日：1998-12-22

申请号：US804671

申请日：1997-02-25

申请人： Ross W. Lampe ,  John T. Gillette ,  Rodney A. Dolman ,  Antonio Montalvo

发明人： Ross W. Lampe ,  John T. Gillette ,  Rodney A. Dolman ,  Antonio Montalvo

IPC分类号： H03G3/20 ,  H03G3/30 ,  H04B1/10 ,  H04B1/26

CPC分类号： H03G3/3068

摘要： A high dynamic range receiver IF system using limited dynamic range IF filters is disclosed. A variable gain amplifier amplifies a first IF signal. The amplified first IF signal is then applied to an image suppression mixer for suppressing an image component of the amplified first IF signal to provide adequate image suppression for a radio system, wherein the image suppression mixer outputting an image suppressed second IF signal. An active bandpass filter then filters the unwanted components from the second IF signal. The filtered signal is then hard limited in a limiting amplifier which outputs a limited IF signal. A logarithmic detector then provides a received signal strength indicator.

摘要翻译： 公开了使用有限动态范围IF滤波器的高动态范围接收机IF系统。 可变增益放大器放大第一IF信号。 放大的第一IF信号然后被施加到图像抑制混频器，用于抑制放大的第一IF信号的图像分量，以为无线电系统提供足够的图像抑制，其中图像抑制混频器输出图像抑制第二IF信号。 有源带通滤波器然后从第二IF信号滤除不想要的分量。 然后，在输出有限的IF信号的限幅放大器中，经滤波的信号被硬限制。 对数检测器然后提供接收信号强度指示器。

公开(公告)号：US06308048B1

公开(公告)日：2001-10-23

申请号：US08974227

申请日：1997-11-19

申请人： Charles Gore ,  Rodney A. Dolman ,  Paul W. Dent

发明人： Charles Gore ,  Rodney A. Dolman ,  Paul W. Dent

IPC分类号： H04B140

CPC分类号： H04B1/0057 ,  H03D7/163 ,  H04B1/005 ,  H04B1/006 ,  H04B1/405

摘要： A mobile radio telephone having a simplified architecture including a reduced number of integrated circuits and a reduced number of RF connections. A dual band, dual mode mobile phone can be constructed using either a single crystal reference oscillator or two crystals such that alternative symbol rates, channel spacings, or transmit/receive duplex spacings can be achieved.

摘要翻译： 具有简化架构的移动无线电话，其包括减少数量的集成电路和减少数量的RF连接。 双频双模移动电话可以使用单晶参考振荡器或两个晶体构造，以便可以实现替代符号速率，信道间隔或发送/接收双工间隔。

公开(公告)号：US5740522A

公开(公告)日：1998-04-14

申请号：US503027

申请日：1995-07-17

申请人： Rodney A. Dolman ,  Ross W. Lampe ,  Xue-Song Zhou

发明人： Rodney A. Dolman ,  Ross W. Lampe ,  Xue-Song Zhou

IPC分类号： H03B1/00 ,  H04B1/04

CPC分类号： H04B1/0475 ,  H03B2201/0208

摘要： Reduction of transmitter exciter chain generated noise from the receive bank of a portable/hand-held duplex transceiver is achieved using a high output power, low-noise voltage-controlled-oscillator (VCO) in the transmitter exciter chain. Using this high-power, low-noise oscillator as the RF source in the transmitter exciter chain precludes the need for the conventional buffer/driver amlplifier stage and an associated inter-stage noise filter. Elimination of buffer/driver stage components and bulky inter-stage noise filter components allows complete integration of transmitter exciter chain components resulting in reduced size and cost.

摘要翻译： 使用发射机激励器链中的高输出功率低噪声压控振荡器（VCO）来实现从便携式/手持双工收发器的接收组中减少发射机激励器链产生的噪声。 使用这种高功率，低噪声振荡器作为发射机激励器链中的RF源，排除了传统的缓冲器/驱动器放大器级和相关的级间噪声滤波器的需要。 消除缓冲器/驱动器级元件和庞大的级间噪声滤波器元件允许发射机激励器链组件的完全集成，从而减小尺寸和成本。

公开(公告)号：US4680749A

公开(公告)日：1987-07-14

申请号：US734369

申请日：1985-05-15

申请人： Arvid E. Englund ,  Stephen R. Wynn ,  Rodney A. Dolman ,  Frederick J. Highton ,  Rickey D. Harris

发明人： Arvid E. Englund ,  Stephen R. Wynn ,  Rodney A. Dolman ,  Frederick J. Highton ,  Rickey D. Harris

IPC分类号： H04B7/26 ,  H04B1/40 ,  H04B1/50 ,  H04B14/00 ,  H04L27/18 ,  H04J9/00

CPC分类号： H04B14/006 ,  H04B1/406

摘要： A novel circuit architecture is disclosed for achieving audio, tone, and digital data signal modulation in a full duplex radio transceiver. A single signal source is utilized to generate both transmitted carrier and receiver local oscillator injection signals. Yet the architecture is such that the transmitted data does not appear at the receiver's discriminator output--while a "side tone" of transmitted audio does so appear. The audio to be transmitted is used to frequency modulate a VCO and provide the receiver first mixer injection signal as well as a "carrier" input to a phase modulator. The data/tone signals are on the other hand, combined and integrated in a complex waveform and input to control the phase modulator. The resulting FM (data/tone and voice) output from the phase modulator is then input to a conventional duplexed r.f. transmitter.

摘要翻译： 公开了一种用于在全双工无线电收发器中实现音频，音调和数字数据信号调制的新型电路架构。 利用单个信号源来产生传输的载波和接收机本地振荡器注入信号。 然而，架构使得所发送的数据不出现在接收机的鉴别器输出端，而传输的音频的“侧音”出现。 要传输的音频用于对VCO进行频率调制，并提供接收机第一混频器注入信号以及向相位调制器输入“载波”。 另一方面，数据/音调信号被组合并集成在复杂波形和输入中以控制相位调制器。 然后将从相位调制器输出的所得FM（数据/音调和语音）输入到常规的双工r.f. 发射机。

公开(公告)号：US06845126B2

公开(公告)日：2005-01-18

申请号：US10423713

申请日：2003-04-25

申请人： Paul W. Dent ,  Rodney A. Dolman

发明人： Paul W. Dent ,  Rodney A. Dolman

IPC分类号： H04B1/04 ,  H04B1/40 ,  H04B1/38 ,  H04B1/26

CPC分类号： H03F3/24 ,  H03H7/40 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/0458 ,  H04B1/406

摘要： A transceiver includes a transmitter and a homodyne receiver, wherein the receiver is used to process both antenna-received and antenna-reflected signals. Thus, during a receive mode, for example, the receiver downconverts antenna-received signals to baseband signals, which are then processed to recover receive signal information. Then, during a transmit mode for example, antenna-reflected transmit signals are fed back to the receiver, which is retuned to the desired transmit frequency, and thus downconverts the reflected transmit signals to baseband signals. These baseband signals are then processed to obtain a characterization of impedance mismatch between the transceiver's transmitter and the associated antenna. An adjustable matching network disposed in the transmit signal path thus may be adjusted based on the characterization to reduce the mismatch. Such configurations may be used with either single-band or multi-band embodiments of the transceiver, and the transceiver may be used in both TDMA and CDMA communication systems.

摘要翻译： 收发机包括发射机和零差接收机，其中接收机用于处理天线接收天线和天线反射信号。 因此，在接收模式期间，例如，接收机将天线接收的信号下变频到基带信号，然后将其处理以恢复接收信号信息。 然后，例如，在发送模式期间，天线反射的发送信号被反馈到接收机，接收机被重新连接到期望的发送频率，并且因此将反射的发送信号下变频到基带信号。 然后处理这些基带信号以获得收发器的发射机和相关天线之间的阻抗失配的表征。 因此，可以基于表征调整设置在发射信号路径中的可调匹配网络，以减少不匹配。 这样的配置可以与收发器的单频带或多频带实施例一起使用，并且收发器可以在TDMA和CDMA通信系统中使用。

公开(公告)号：US06272356B1

公开(公告)日：2001-08-07

申请号：US09309017

申请日：1999-05-10

申请人： Rodney A. Dolman ,  Russell Evans Winstead ,  Gerard J. Hayes

发明人： Rodney A. Dolman ,  Russell Evans Winstead ,  Gerard J. Hayes

IPC分类号： H04B138

CPC分类号： H04M1/0216 ,  H01Q1/084 ,  H01Q1/242 ,  H01Q1/44 ,  H04B1/3833 ,  H04M1/0214

摘要： A spring member internally mounted within an electronic device, such as a radiotelephone, serves both as a mechanical device for urging a flip cover to an open position and as an antenna for receiving and/or transmitting wireless communications signals.

摘要翻译： 内部安装在诸如无线电话之类的电子装置内的弹簧件既用于将翻盖推到打开位置的机械装置，也用作用于接收和/或发送无线通信信号的天线。