公开(公告)号：WO1996009700A1

公开(公告)日：1996-03-28

申请号：PCT/US1995009814

申请日：1995-08-03

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  LAIRD, Kevin, Michael ,  SMITH, Sybren ,  MARKO, Paul, D. ,  WADIN, Craig, P.

IPC: H04B14/06

CPC classification number: H04L1/20 ,  H04B14/068 ,  H04L1/0059 ,  H04L1/0061

Abstract: A method and apparatus for mitigating error in a received communications signal includes an error mitigator (35) of a communication unit (12) which receives and performs mitigation based on an error indication. In a first embodiment, the error indication is a phase or non-used data symbol indicating error in ADPCM data, and mitigation includes changing certain nibble values to different predetermined values. In a second embodiment, the error indication may include other parameters, e.g., a CRC frame error indicator, and an error estimator (34) determines a level of corruption in the ADPCM data. The error mitigator (35) applies a predetermined set of replacement values based on the indicated level of corruption, and the mitigated data is subsequently decoded in an ADPCM decoder (26).

Abstract translation: 用于减轻接收到的通信信号中的错误的方法和装置包括通信单元（12）的误差缓冲器（35），其基于错误指示接收和执行缓解。 在第一实施例中，误差指示是指示ADPCM数据中的错误的相位或未使用的数据符号，并且缓解包括将某些半字节值改变为不同的预定值。 在第二实施例中，错误指示可以包括其他参数，例如CRC帧错误指示符，并且错误估计器（34）确定ADPCM数据中的损坏程度。 误差缓冲器（35）基于指示的损坏级别应用预定的一组替换值，并且随后在ADPCM解码器（26）中对缓解的数据进行解码。

公开(公告)号：WO1996008068A1

公开(公告)日：1996-03-14

申请号：PCT/US1995010869

申请日：1995-08-24

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  PATINO, Joseph ,  BOGUT, Henry, A. ,  LEIZEROVICH, Gustavo, D.

IPC: H02J07/00

CPC classification number: H02J7/0091 ,  H02J7/0006 ,  H02J7/0031

Abstract: A lock-and-key system for selectively enabling and disabling a battery charger is provided. The system lock is provided by a Hall effect switch (140) which, when activated, will allow a battery charger (102) to properly charge a battery (106) loaded thereinto. The key for activating the Hall effect switch is a magnet (142) adapted to apply a magnetic field to the Hall effect switch (140). In embodiments in which the Hall effect switch is disposed in the charger, the magnet is disposed in the battery pack. Conversely, when the Hall effect switch is disposed in the battery pack, the magnet is provided in the battery charger.

Abstract translation: 提供了用于选择性地启用和禁用电池充电器的锁定和关键系统。 系统锁由霍尔效应开关（140）提供，当启动时，电池充电器（102）将对装载的电池（106）进行适当的充电。 用于激活霍尔效应开关的键是适于向霍尔效应开关（140）施加磁场的磁体（142）。 在霍尔效应开关设置在充电器中的实施例中，磁体设置在电池组中。 相反，当霍尔效应开关设置在电池组中时，磁体设置在电池充电器中。

公开(公告)号：WO1996007241A1

公开(公告)日：1996-03-07

申请号：PCT/US1995008082

申请日：1995-06-30

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  DANIEL, Christopher, John ,  HOLOUBEK, Kevin, Joseph

IPC: H04B01/04

CPC classification number: H03G3/3047

Abstract: A transmitter architecture is disclosed which offers a new combination of signal shaping and power control which optimizes transmitter noise figure performance. The disclosed apparatus and method is implemented by separating the shaping element (303) from the power control elements (406, 412, 418) in frequency. Placing the shaping element (303) at a fixed intermediate frequency (IF) allows for the use of readily available, temperature stable shaping elements while distributing the power control elements (406, 412, 418) at radio frequency (RF) facilitates optimization of noise figure performance in the transmitter (200).

Abstract translation: 公开了一种发射机架构，其提供信号整形和功率控制的新组合，其优化发射机噪声系数性能。 所公开的装置和方法通过在频率上与功率控制元件（406,412,418）分离成形元件（303）来实现。 将成形元件（303）放置在固定的中间频率（IF）处允许使用易于获得的温度稳定的成形元件，同时以射频（RF）分配功率控制元件（406,412,418）便于优化噪声 发射机的性能（200）。

公开(公告)号：WO1996007236A1

公开(公告)日：1996-03-07

申请号：PCT/US1995010553

申请日：1995-08-18

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  EBERHARDT, John, E. ,  BELLOTTI, Enrico

IPC: H03F01/30

CPC classification number: H03F1/302

Abstract: A transceiver (100) includes a radio frequency power amplifier (116) which is biased by an active bias circuit (110). Active bias circuit (110) provides a low cost bias circuit for amplifier (116) which adjusts the bias over changes in temperature and supply voltage levels to provide a constant output power. A set of control inputs (122-126) coming from controller (108) provide for power output level adjustement for the amplifier (116) in a frequency modulated (FM) environment and for both power and modulation level adjustments in an amplitude modulated (AM) environment.

Abstract translation: 收发器（100）包括由有源偏置电路（110）偏置的射频功率放大器（116）。 有源偏置电路（110）为放大器（116）提供了一种低成本偏置电路，该电路调节偏置温度和电源电压电平的偏差，以提供恒定的输出功率。 来自控制器（108）的一组控制输入（122-126）提供在调频（FM）环境中用于放大器（116）的功率输出电平调整，并且用于幅度调制（AM）中的功率和调制电平调整 ） 环境。

公开(公告)号：WO1996007229A1

公开(公告)日：1996-03-07

申请号：PCT/US1995010555

申请日：1995-08-18

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  GARRETT, Scott, M.

IPC: H02J07/04

CPC classification number: H02J7/0072 ,  Y10T307/615 ,  Y10T307/625

Abstract: A bi-level current limiting circuit is provided for purposes of maintaining safe battery operation in hostile or otherwise volatile environments. The bi-level current limiting circuit includes two sub-circuits, a first sub-circuit for establishing a maximum current level output from a battery pack into which the circuit is incorporated, and a second sub-circuit for establishing a steady state current level output.

Abstract translation: 提供双电平限流电路是为了在恶劣环境下保持安全的电池运行。 双电平限流电路包括两个子电路，第一子电路用于建立从电路组合到其中的电池组的最大电流电平输出;以及第二子电路，用于建立稳态电流电平输出 。

公开(公告)号：WO1996005691A1

公开(公告)日：1996-02-22

申请号：PCT/US1995010567

申请日：1995-07-27

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  ORLEN, Noah, Paul

IPC: H04N01/387

CPC classification number: H04N1/00281 ,  H04N1/415

Abstract: A system and method for transmitting a facsimile message to one or more of a plurality of facsimile selective call receivers (40) each capable of decompressing a facsimile message on the basis of a facsimile codebook which is optimized for an image of a predetermined fixed resolution. In a processor (20) of the selective call terminal, the image of the facsimile message is segmented into a plurality of subimages (I1-In). Each subimage is compressed on the basis of the codebook to generate a compressed subimage for each subimage. A paging protocol signal is generated including information representative of the plurality of compressed subimages. At the selective call receiver (40), the decoder/controller extracts the information representative of the compressed subimages (CI1-CIn) and decompresses each compressed subimage on the basis of the stored codebook to display the facsimile message.

Abstract translation: 一种用于向多个传真选择呼叫接收机（40）中的一个或多个传真选择呼叫接收机（40）发送传真消息的系统和方法，每个能够根据为预定固定分辨率的图像优化的传真码本解密传真消息。 在选择呼叫终端的处理器（20）中，传真消息的图像被分割成多个子图像（I1-In）。 每个子图像在码本的基础上进行压缩，以生成每个子图像的压缩子图像。 生成包括表示多个压缩子图像的信息的寻呼协议信号。 在选择呼叫接收机（40）处，解码器/控制器提取表示压缩的子图像（CI1-CIn）的信息，并根据所存储的码本解压缩每个压缩的子图像，以显示传真消息。

公开(公告)号：WO1996004720A1

公开(公告)日：1996-02-15

申请号：PCT/US1995005949

申请日：1995-05-15

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  TRAN, Phieu, Moc ,  SMOLINSKE, Jeffrey, C. ,  SCHEIBEL, Robert, C., Jr. ,  CLANTON, Christopher, L.

IPC: H04B07/212

CPC classification number: H04W74/0833

Abstract: The present invention provides a unique access control scheme (100) for assigning a plurality of time slots in a fair manner among subscriber units (508, 514) using a single time slot in a frame and subscriber units (508, 514) using multiple time slots in a frame in a communication system.

Abstract translation: 本发明提供一种唯一的访问控制方案（100），用于使用帧中的单个时隙以及使用多个时间的用户单元（508,514）在用户单元（508,514）之间以公平的方式分配多个时隙 在通信系统中的帧中的时隙。

公开(公告)号：WO1996004719A1

公开(公告)日：1996-02-15

申请号：PCT/US1995009236

申请日：1995-07-21

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  FULGHUM, Tracy, L.

IPC: H04B07/204

CPC classification number: H04W28/26 ,  H04W24/00 ,  H04W72/02

Abstract: A method and apparatus is provided for operating a radio communication system (100). The system (100) has a sequence of communication channels (205), including a reservation channel, and a channel hopping protocol for operating on the sequence (205). A hop period is defined for the channel hopping protocol. A transceiver (113) monitors the reservation channel to find an open communication slot (213), having a duration less than the channel hop period, and cyclically channel hops through the sequence of communication channels in the open slot (213). The transceiver (113) reserves the communication slot (213) for a subsequent cycle through the sequence by transmitting a reservation signal on the reservation channel.

Abstract translation: 提供了一种用于操作无线电通信系统（100）的方法和装置。 系统（100）具有包括预留信道的通信信道序列（205）和用于在序列（205）上操作的信道跳频协议。 为跳频协议定义跳跃周期。 收发机（113）监视预留信道以找到具有小于信道跳跃周期的持续时间的开放通信时隙（213），并且通过所述开放时隙（213）中的所述通信信道序列循环地跳跃。 收发器（113）通过在预留信道上发送预约信号，通过序列保留用于后续周期的通信时隙（213）。

公开(公告)号：WO1996002096A1

公开(公告)日：1996-01-25

申请号：PCT/US1995005646

申请日：1995-05-08

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  PHILLIPS, Sharon, E., T. ,  CARNEY, Scott, N.

IPC: H04J03/24

CPC classification number: H04L1/0015 ,  H04J3/247 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1874

Abstract: A method and communication system (100) provide for automatic optimization of data throughput by adjusting the encoder (108) to use a long packet length and an increased channel coding efficiency during periods of low error counts and a short packet length and an increased channel coding redundancy during periods of high error counts.

Abstract translation: 方法和通信系统（100）通过在低错误计数和短分组长度以及增加的信道编码期间调整编码器（108）以使用长分组长度和增加的信道编码效率来提供数据吞吐量的自动优化 高错误计数期间的冗余。

公开(公告)号：WO1996001519A1

公开(公告)日：1996-01-18

申请号：PCT/US1995008389

申请日：1995-07-05

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  PATINO, Joseph ,  BOGUT, Henry, A. ,  FERNANDEZ, Jose, M.

IPC: H02J07/04

CPC classification number: H02J7/0004

Abstract: A battery charging system (200) comprises a battery pack (206) and charger (202). Battery pack (206) includes a thermistor (212) for determining the temperature of battery pack (206) and a zener diode (210) in parallel with the thermistor (212) for informing charger (202) of the current capacity of battery (206) or of another battery parameter. Charger (202) includes a transistor (220) and zener diode (214) for effectively switching between measuring thermistor (212) and zener diode (210) at charger input terminal (224). This effectively reduces the number of battery and charger contacts required to measure two battery parameters as compared to the prior art.

Abstract translation: 电池充电系统（200）包括电池组（206）和充电器（202）。 电池组（206）包括用于确定电池组（206）的温度的热敏电阻（212）和与热敏电阻（212）并联的齐纳二极管（210），用于向充电器（202）通知电池（206）的当前容量 ）或另一个电池参数。 充电器（202）包括用于在充电器输入端子（224）处有效切换测量热敏电阻（212）和齐纳二极管（210）之间的晶体管（220）和齐纳二极管（214）。 与现有技术相比，这有效地减少了测量两个电池参数所需的电池和充电器触点的数量。