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1. 发明授权

US5325405A Burst mode receiver control 失效
标题翻译：突发模式接收机控制
公开(公告)号：US5325405A
公开(公告)日：1994-06-28
申请号：US750373
申请日：1991-08-27
申请人： Paul D. Marko , David L. Brown , Jaime A. Borras , Ronald E. Sharp
发明人： Paul D. Marko , David L. Brown , Jaime A. Borras , Ronald E. Sharp
IPC分类号： H04B1/38 , H04B1/44 , H04B7/26 , H04L7/033 , H04L7/08 , H04M1/725 , H04Q7/38 , H04L7/00
CPC分类号： H04B1/44 , H04M1/72505
摘要： A transceiver (100) is provided for transmitting during the transmission bursts (12) of a frame and receiving during the receiving time-slot windows (14). The transceiver (100) includes a receiver (320) for receiving a repeating radio frequency data (16) signal at any time within the receiving time-slot window (14) and for demodulating the repeating radio frequency data signal down to a baseband data signal. A data detector and clock recovery device (330) recovers the valid data (CHMP) from the baseband data signal. For controlling the receiver (320) and data detector and clock recovery device (330), a control circuit (400) modifies the receiving time-slot windows (14) to only receive and detect when valid data is expected (52).
摘要翻译：收发器（100）被提供用于在帧的传输脉冲串（12）期间进行传输并在接收时隙窗口（14）期间接收。收发器（100）包括用于在接收时隙窗口（14）内的任何时间接收重复的射频数据（16）信号的接收机（320），并且将重复射频数据信号解调为基带数据信号。数据检测器和时钟恢复装置（330）从基带数据信号中恢复有效数据（CHMP）。为了控制接收机（320）和数据检测器和时钟恢复装置（330），控制电路（400）修改接收时隙窗口（14），以仅在预期有效数据时接收和检测（52）。

2. 发明授权

US6011784A Communication system and method using asynchronous and isochronous spectrum for voice and data 失效
标题翻译：用于语音和数据的异步和等时频谱通信系统和方法
公开(公告)号：US6011784A
公开(公告)日：2000-01-04
申请号：US769026
申请日：1996-12-18
申请人： David L. Brown , Paul D. Marko , Jaime A. Borras
发明人： David L. Brown , Paul D. Marko , Jaime A. Borras
IPC分类号： H04L12/28 , H04J3/24
CPC分类号： H04W74/02 , H04W48/08 , H04W72/0446
摘要： In a time division, multiple access system, a base station (102) transmits an isochronous beacon (404, 422) at the start of each frame (400), conveying control and timing information. Following the isochronous beacon (404), isochronous time slots (414, 416, 418, 420) are dynamically allocated for communication of isochronous data. After communication of the isochronous data, the remainder of the frame (400) before the next isochronous beacon (422) is used for transmission of packets of asynchronous data. This technique gives priority to the isochronous data, which is real time, while also maximizing the bandwidth allocated for asynchronous data. A single transmitter circuit (124, 158) and receiver circuit (122, 156) at each station are used for communication of both isochronous data and asynchronous data.
摘要翻译：在时分多址接入系统中，基站（102）在每帧开始时发送等时信标（404,422），传送控制和定时信息。在等时信标（404）之后，动态分配同步时隙（414,416,418,420）用于同步数据的通信。在同步数据通信之后，在下一个同步信标（422）之前的帧（400）的剩余部分被用于异步数据分组的传输。这种技术优先考虑实时的同步数据，同时最大化分配给异步数据的带宽。每个站处的单个发射机电路（124,158）和接收机电路（122,156）用于同步数据和异步数据的通信。

3. 发明授权

US5333153A Signal quality detection method and apparatus for optimum audio muting 失效
标题翻译：用于最佳音频静音的信号质量检测方法和装置
公开(公告)号：US5333153A
公开(公告)日：1994-07-26
申请号：US823521
申请日：1992-01-21
申请人： David L. Brown , Paul D. Marko , Jaime A. Borras
发明人： David L. Brown , Paul D. Marko , Jaime A. Borras
IPC分类号： H03G3/34 , H04B1/10
CPC分类号： H04B1/1027 , H03G3/344
摘要： A digital communication device (10) comprises a signal quality detector (18) that determines the quality of the received signals and instantaneously mutes and unmutes the voice output (22) of the digital radio communication device when the quality drops below a selected level to prevent noise bursts from being heard by the user of the communication device.
摘要翻译：数字通信设备（10）包括信号质量检测器（18），当信号质量检测器（18）在质量下降到低于所选择的电平以下时，确定所接收的信号的质量并使数字无线电通信设备的语音输出（22）静音和取消静音，以防止由通信设备的用户听到噪声突发。

4. 发明授权

US5402448A Burst mode receiver control 失效
标题翻译：突发模式接收机控制
公开(公告)号：US5402448A
公开(公告)日：1995-03-28
申请号：US194760
申请日：1994-02-10
申请人： Paul D. Marko , David L. Brown , Jaime A. Borras , Ronald E. Sharp
发明人： Paul D. Marko , David L. Brown , Jaime A. Borras , Ronald E. Sharp
IPC分类号： H04B1/38 , H04B1/44 , H04B7/26 , H04L7/033 , H04L7/08 , H04M1/725 , H04Q7/38 , H03D1/00
CPC分类号： H04B1/44 , H04M1/72505
摘要： A transceiver (100) is provided for transmitting during the transmission bursts (12) of a frame and receiving during the receiving time-slot windows (14). The transceiver (100) includes a receiver (320) for receiving a repeating radio frequency data (16) signal at any time within the receiving time-slot window (14) and for demodulating the repeating radio frequency data signal down to a baseband data signal. A data detector and clock recovery device (330) recovers the valid data (CHMP) from the baseband data signal. For controlling the receiver (320) and data detector and clock recovery device (330), a control circuit (400) modifies the receiving time-slot windows (14) to only receive and detect when valid data is expected (52).
摘要翻译：收发器（100）被提供用于在帧的传输脉冲串（12）期间进行传输并在接收时隙窗口（14）期间接收。收发器（100）包括用于在接收时隙窗口（14）内的任何时间接收重复的射频数据（16）信号的接收机（320），并且将重复射频数据信号解调为基带数据信号。数据检测器和时钟恢复装置（330）从基带数据信号中恢复有效数据（CHMP）。为了控制接收机（320）和数据检测器和时钟恢复装置（330），控制电路（400）修改接收时隙窗口（14），以仅在预期有效数据时接收和检测（52）。

5. 发明授权

US5276915A Transceiver having a divide-down transmit offset scheme 失效
标题翻译：收发器具有分频传输偏移方案
公开(公告)号：US5276915A
公开(公告)日：1994-01-04
申请号：US787279
申请日：1991-11-04
申请人： Paul D. Marko , Jaime A. Borras
发明人： Paul D. Marko , Jaime A. Borras
IPC分类号： H04B1/40 , H04B15/04
CPC分类号： H04B1/405 , H04B15/04 , H04B2215/064
摘要： A radio communication device, having a receive mode and a transmit mode, includes a receiver portion, a transmitter portion, and multiple oscillators for providing reference waveforms for the radio communication device. During the receive mode, the receiver portion receives signals having a selected frequency, converts received signals to at least a first intermediate frequency (IF), and a transmitter oscillator produces a first waveform having a frequency equal to a multiple of the first intermediate frequency during the receive mode. During the transmit mode, the transmitter portion requires a reference waveform having an offset frequency equivalent to the first IF frequency to produce a radio frequency signal. Thus, the radio communication device also comprises a divider coupled to the transmitter oscillator for dividing the frequency of the first waveform to the required offset frequency in the transmit mode.
摘要翻译：具有接收模式和发送模式的无线电通信装置包括用于为无线电通信装置提供参考波形的接收机部分，发射机部分和多个振荡器。在接收模式期间，接收机部分接收具有选定频率的信号，将接收到的信号转换成至少第一中频（IF），发射机振荡器产生频率等于第一中频倍数的第一波形接收模式。在发射模式期间，发射机部分需要具有等于第一IF频率的偏移频率的参考波形，以产生射频信号。因此，无线电通信设备还包括耦合到发射机振荡器的分频器，用于在发送模式中将第一波形的频率划分为所需的偏移频率。

6. 发明授权

US6014376A Method for over-the-air synchronization adjustment in a communication system 失效
标题翻译：通信系统中空中同步调整方法
公开(公告)号：US6014376A
公开(公告)日：2000-01-11
申请号：US715508
申请日：1996-09-18
申请人： Victor M. Abreu , Raul A. Pombo , Paul D. Marko , David L. Brown
发明人： Victor M. Abreu , Raul A. Pombo , Paul D. Marko , David L. Brown
IPC分类号： H04B7/26 , H04L7/08 , H04J3/06
CPC分类号： H04B7/2696 , H04L7/08
摘要： A method for synchronizing base stations (104, 106, 108, 110) or radio ports in a communication system (100) such as a cordless or cellular telephone system uses a mobile station (114) or handset for synchronizing unsynchronized base stations. The mobile station (114) is first synchronized to a reference base station. The mobile station (114) then initiates communication with the unsynchronized base station and calculates a synchronization adjustment. The mobile station (114) transmits the synchronization adjustment to the unsynchronized base station which uses the synchronization adjustment to adjust its time base.
摘要翻译：一种用于同步诸如无绳或蜂窝电话系统的通信系统（100）中的基站（104,106,108,110）或无线电端口的方法使用移动台（114）或手持机来同步非同步的基站。移动台（114）首先与参考基站同步。然后，移动站（114）发起与非同步基站的通信，并计算同步调整。移动站（114）将同步调整发送到使用同步调整的不同步基站来调整其时基。

7. 发明授权

US5463351A Nested digital phase lock loop 失效
标题翻译：嵌套数字锁相环
公开(公告)号：US5463351A
公开(公告)日：1995-10-31
申请号：US314830
申请日：1994-09-29
申请人： Paul D. Marko , Craig P. Wadin , David L. Brown
发明人： Paul D. Marko , Craig P. Wadin , David L. Brown
IPC分类号： H03L7/06 , H03L7/07 , H03L7/099 , H04L7/00 , H04L7/033 , H03L7/10
CPC分类号： H03L7/07 , H03L7/0991 , H04L7/0004 , H04L7/033
摘要： A nested digital phase lock loop (DPLL) circuit (400) provides center bit sampling for incoming recovered data (406). Included in the nested DPLL circuit (400) are a narrow bandwidth DPLL (402) and a wide bandwidth DPLL (404) which generate first (410) and second (428) recovered clock signals respectively. Initially the first recovered clock signal (410) is used to clock in the recovered data (406) until the narrowband DPLL (402) is stabilized. Once the narrowband DPLL (402) is stabilized, the second recovered clock signal (428) generated from the wideband DPLL (404) is switched in by a multiplexer (424). If for any reason the center bit sampled data becomes corrupted, a RESET occurs in the wideband loop (404) to zero out the phase shift of the second recovered clock signal (428) to match that of the narrow loop. Thus, when a RESET occurs, the wideband loop is tracking at exactly the same clock rate as the narrowband loop.
摘要翻译：嵌套数字锁相环（DPLL）电路（400）为输入的恢复数据（406）提供中心位采样。包含在嵌套DPLL电路（400）中的是窄带宽DPLL（402）和宽带宽DPLL（404），其分别产生第一（410）和第二（428）恢复的时钟信号。最初，第一恢复时钟信号（410）用于在恢复的数据（406）中进行时钟，直到窄带DPLL（402）稳定为止。一旦窄带DPLL（402）稳定，则从宽带DPLL（404）产生的第二恢复时钟信号（428）被多路复用器（424）切换。如果由于任何原因，中心位采样数据被破坏，则在宽带环路（404）中发生复位以将第二恢复时钟信号（428）的相移清零以匹配窄环路的相移。因此，当发生RESET时，宽带环路跟窄带环路完全相同的时钟速率进行跟踪。

8. 发明授权

US5436937A Multi-mode digital phase lock loop 失效
标题翻译：多模数字锁相环
公开(公告)号：US5436937A
公开(公告)日：1995-07-25
申请号：US11926
申请日：1993-02-01
申请人： David L. Brown , Paul D. Marko
发明人： David L. Brown , Paul D. Marko
IPC分类号： H03L7/08 , H03L7/099 , H04L7/033 , H03D3/24
CPC分类号： H03L7/0992 , H03L7/08 , H04L7/0331
摘要： A multi-mode PLL circuit (100) includes an early/late bit transition accumulator (108) for accumulating the number of incoming bit transitions which are early or late. This allows for PLL (100) to provide adjustments based on a predetermined number of accumulated early/late accumulations or based on an average of early/late transitions over a predetermined period of time. PLL (100) further includes a frequency offset circuit (200) which includes a frequency error accumulator which is used to maintain a frequency offset history and to control the loop frequency. This allows for very narrow band operation of the first order digital PLL while maintaining stable operation.
摘要翻译：多模式PLL电路（100）包括用于累加早期或晚期的输入位转换次数的早/晚位转换累加器（108）。这允许PLL（100）基于预定数量的累加的早/晚累积或者基于在预定时间段内的早/晚转换的平均值来提供调整。 PLL（100）还包括频率偏移电路（200），其包括用于维持频率偏移历史并控制环路频率的频率误差累加器。这允许一阶数字PLL的非常窄的频带操作，同时保持稳定的操作。

9. 发明授权

US5754956A Methodical scanning method and apparatus for portable radiotelephones 失效
标题翻译：便携式无线电话机的方法扫描方法和装置
公开(公告)号：US5754956A
公开(公告)日：1998-05-19
申请号：US531257
申请日：1995-09-20
申请人： Victor M. Abreu , Raul A. Pombo , Paul D. Marko , David L.. Brown
发明人： Victor M. Abreu , Raul A. Pombo , Paul D. Marko , David L.. Brown
IPC分类号： H04W48/16 , H04Q7/20
CPC分类号： H04W48/16
摘要： A radiotelephone handset (120) includes an antenna (122) and receiver (124) for receiving a control channel from a plurality of base stations (102, 104, 106). A time division multiple access controller circuit (126) coupled to the receiver stores all received control channel information in a captured data buffer (134). Under control of a processor (128), the handset identifies as candidate suitable base stations those base stations having acceptable received signal strength, acceptable identity or system capability. From the candidates, the handset (120) chooses a suitable base station having acceptable signal quality, access rights and system capability and synchronizes communication with the suitable base station.
摘要翻译：无线电话手机（120）包括用于从多个基站（102,104,106）接收控制信道的天线（122）和接收机（124）。耦合到接收器的时分多址控制器电路（126）将所有接收到的控制信道信息存储在捕获的数据缓冲器（134）中。在处理器（128）的控制下，手机将具有可接收的接收信号强度，可接受的身份或系统能力的基站识别为候选合适的基站。从候选者，手机（120）选择具有可接受的信号质量，访问权限和系统能力的合适的基站，并且与适当的基站同步通信。

10. 发明授权

US5384828A Method and apparatus for synchronization in a wireless telephone system 失效
标题翻译：无线电话系统中同步的方法和装置
公开(公告)号：US5384828A
公开(公告)日：1995-01-24
申请号：US136846
申请日：1993-10-18
申请人： David L. Brown , Motjaba Aghaalian , Paul D. Marko
发明人： David L. Brown , Motjaba Aghaalian , Paul D. Marko
IPC分类号： H04L7/04 , H04L7/10 , H04M1/725 , H04M11/00
CPC分类号： H04M1/72505 , H04L7/042 , H04L7/10
摘要： A resynchronization method for use in a communication system, such as a second generation cordless telephone system 800, begins by determining that synchronization has been lost by a receiving unit (830). The receiving unit than mutes any transmit data and generates zero data which is combined with a pattern generated by pattern generator (812). The transmission is then received by handset (830), which detects the pattern generated by pattern generator (812) using pattern detector (850). Pattern detector (850) then generates a pattern detected signal (852) which causes handset (840) to also stop sending data and generate a pattern accompanied by zero data. Base station (830) detects the pattern and again generates another pattern accompanied with zero data which is transmitted to handset (840). Handset (840) after decoding the pattern for the second time begins to resumes the normal transmission of data to base station (830).
摘要翻译：用于诸如第二代无绳电话系统800的通信系统中的再同步方法通过确定接收单元（830）已经失去同步而开始。接收单元使任何发送数据静音，并产生与由模式发生器（812）生成的模式组合的零数据。然后由手持机（830）接收传输，手机（830）使用模式检测器（850）检测由模式发生器（812）产生的模式。模式检测器（850）然后产生模式检测信号（852），其使手机（840）也停止发送数据并产生伴随零数据的模式。基站（830）检测模式，并再次产生伴随零数据的另一模式，该数据被发送到手机（840）。在第二次解码模式之后的手机（840）开始恢复到基站的数据的正常传输（830）。

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