公开(公告)号：WO1995027964A1

公开(公告)日：1995-10-19

申请号：PCT/US1995004628

申请日：1995-04-12

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  HELMS, Robert, V. ,  JACOBS, Jeffrey, A.

IPC: G08G01/127

CPC classification number: G08G1/202

Abstract: A system and method for assigning hauling vehicles (T1, T6) to freight loads (L1, L6) within a freight transportation system is disclosed herein. The system includes a satellite navigation subsystem (S1, S2) for providing vehicle and load position data useable to determine the locations of each hauling vehicle (T1, T6) and freight load (L1, L6). The position data may also be utilized to determine a set deadhead distances required to be traversed by ones of the hauling vehicles (T1, T6) unencumbered with freight loads (L1, L6) while en route to load pick-up locations. Each unencumbered tractor vehicle (T1, T6) is then efficiently matched with an available freight load (L1, L6) in accordance with the compiled sets of deadhead distances and a set of potential pick-up times. Objectives such as punctual load pick-up and delivery, full utilization of available tractor vehicles, and maintaining scheduled driver home-base times of arrival may be achieved through "relay" operations. The term "relay" refers to the process by which an in-transit load is disengaged from a first tractor vehicle and made available at a designated relay location. The disengaged load is then engaged by a second tractor vehicle which becomes available in the vicinity of the relay location within a predefined relay window. In a preferred implementation the loads matched to selected pairs of tractor vehicles may also be exchanged, or "swapped", at a set of swap locations so as to minimize a cost function.

Abstract translation: 本文公开了一种用于将运输车辆（T1，T6）分配给货物运输系统内的货物负载（L1，L6）的系统和方法。 该系统包括用于提供用于确定每个运输车辆（T1，T6）和货物负载（L1，L6）的位置的车辆和负载位置数据的卫星导航子系统（S1，S2）。 位置数据还可以用于确定在运送到负载拾取位置的途中，不受货运负载（L1，L6）阻碍的运输车辆（T1，T6）中的一个运送车辆所需要的设定行程距离。 然后根据编组的死头距离集合和一组潜在的拾取时间，将每个未受阻的拖拉机车辆（T1，T6）与可用的货物负载（L1，L6）高效地匹配。 通过“中继”操作可以实现诸如准时载重接收和交付，充分利用可用的拖拉机车辆以及维持定时驾驶员到达时间的目的。 术语“继电器”是指过渡载荷与第一拖拉机车辆脱离并在指定的继电器位置可用的过程。 然后，分离的负载由第二拖拉机车辆接合，该第二拖拉机车辆在预定义的中继窗口内的继电器位置附近变得可用。 在优选的实施方式中，与所选择的拖拉机车辆匹配的负载也可以在一组交换位置处交换或“交换”，以便最小化成本函数。

公开(公告)号：WO1995022875A1

公开(公告)日：1995-08-24

申请号：PCT/US1995002124

申请日：1995-02-17

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  GROB, Matthew, S. ,  KARMI, Gadi ,  KIMBALL, Robert, H.

IPC: H04Q07/22

CPC classification number: H04W76/10

Abstract: Providing an audible feedback feature giving the user the ability to audibly monitor the progress of a data connection over a digital wireless channel. Audible tones generated within a base station (80) and received from a telephone network (30) are encoded within the base station (80) and transmitted over the digital wireless link (160) to a mobile unit (60). The mobile unit (60) decodes the signal received from the base station (80) and provides the audible tones to a user. The user can thus monitor the success or failure of the data connection.

Abstract translation: 提供可听见的反馈功能，使用户能够通过数字无线信道可视地监视数据连接的进度。 在基站（80）内产生并从电话网络（30）接收的听觉音调被编码在基站（80）内，并通过数字无线链路（160）发送到移动单元（60）。 移动单元（60）对从基站（80）接收的信号进行解码，并向用户提供可听到的音调。 因此，用户可以监视数据连接的成功或失败。

公开(公告)号：WO1995012919A1

公开(公告)日：1995-05-11

申请号：PCT/US1994012449

申请日：1994-10-27

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  SIH, Gilbert, C. ,  ANTONIO, Franklin, P.

IPC: H03H21/00

CPC classification number: H04B3/23 ,  H03H21/0012

Abstract: An apparatus that automatically adjusts the adaptation block size for a least-mean square (LMS) adaptive filter depending on the input signal-to-noise ratio (SNR) is disclosed. The apparatus monitors the instantaneous SNR (22) and continually adjusts the block size (20, 26) to provide high noise immunity, thereby increasing the convergence speed of the filter and decreasing the asymptotic mean-square error. An exemplary embodiment of the present invention is presented in the context of acoustic echo cancellation, though it is noted that the adaptive filter of the present invention is useful in any environment in which the noise characteristics are subject to change.

Abstract translation: 公开了一种根据输入信噪比（SNR）自动调整最小均方（LMS）自适应滤波器的适配块大小的装置。 该装置监视瞬时信噪比（22），并持续调整块大小（20,26）以提供高抗噪性能，从而增加滤波器的收敛速度并减小渐近均方误差。 尽管要注意的是本发明的自适应滤波器在噪声特性可能改变的任何环境中都是有用的，但本发明的示例性实施例在声学回声消除的上下文中呈现。

公开(公告)号：WO1995012297A1

公开(公告)日：1995-05-04

申请号：PCT/US1994012459

申请日：1994-10-28

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  GILHOUSEN, Klein, S. ,  PADOVANI, Roberto

IPC: H04Q07/38

CPC classification number: H04W36/06 ,  H04B7/0491 ,  H04W16/24 ,  H04W36/18 ,  H04W36/20 ,  H04W52/24 ,  H04W52/34 ,  H04W52/40

Abstract: A plurality of methods for achieving the soft or softer handoff process such that the performance of a system is improved. A first method is based on delaying the softer handoff process. A second method is based on reducing the power of transmissions from the sector having the weakest signal strength. A third method is based on eliminating transmissions from the sector having the weakest signal strength. A fourth method adds a new base station or sector only when the mobile unit is in need of additional power to operate properly. In all four methods, reverse link demodulation in each sector may continue with or without the transmission of the forward link. In all four methods the operation could be based on the signal strength of the reverse link signal or the forward link. It is also possible to combine two or more of these methods to create a hybrid method.

Abstract translation: 用于实现软或更软切换过程的多种方法，使得系统的性能得到改善。 第一种方法是基于延迟较软的切换过程。 第二种方法是基于降低具有最弱信号强度的扇区的传输功率。 第三种方法是基于消除具有最弱信号强度的扇区的传输。 第四种方法仅在移动单元需要额外的电力才能正常工作时添加新的基站或扇区。 在所有四种方法中，每个扇区中的反向链路解调可以继续或不传输前向链路。 在所有四种方法中，操作可以基于反向链路信号或前向链路的信号强度。 也可以组合这些方法中的两种或更多以创建混合方法。

公开(公告)号：WO1995001032A1

公开(公告)日：1995-01-05

申请号：PCT/US1994006956

申请日：1994-06-20

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  BUTLER, Brian, K. ,  PADOVANI, Roberto ,  ZEHAVI, Ephraim

IPC: H04L25/02

CPC classification number: H04L1/0057 ,  H04B2201/70705 ,  H04L1/0046 ,  H04L1/0054 ,  H04L1/08 ,  H04L1/208 ,  H04L25/0262

Abstract: A system for determining the rate at which data has been encoded in the receiver (12) of a variable-rate communications system. The data is received in symbols that are grouped in frames. When data is transmitted at full rate, the frame is filled with symbols. When the data is transmitted at less than full rate, symbols are repeated within a frame until the frame is full or the symbols are spaced apart within a frame. At an encoding rate of one fourth the full rate, for example, each symbol in the frame is repeated four times or data is transmitted one quarter of the time. The incoming frames are decoded, for example by decoder (48), and re-encoded, for example by encoder (76), at each possible data rate. A comparator, for example comparator (84), compares the re-encoded symbols with the originally received symbols and a counter, for example counter (100), counts the number of symbol errors. Each decoding process produces an indication of the quality of the decoding process which may include Cyclic Redundancy Check (CRC) results, for example CRC (120), or Yamamoto Quality Metrics. The counted errors and the quality indication comprise an error metric which is passed to a processor, for example microprocessor (56). The processor analyzes the error metric for each data rate and determines the most probable rate at which the incoming symbols were encoded.

Abstract translation: 一种用于确定在可变速率通信系统的接收机（12）中数据被编码的速率的系统。 以帧分组的符号接收数据。 当以全速率传输数据时，帧用符号填充。 当以小于全速传输数据时，在帧内重复符号，直到帧满了，或者符号在帧内间隔开。 以全速率的四分之一的编码率，例如，帧中的每个符号重复四次，或者在四分之一时间内传输数据。 输入帧例如通过解码器（48）进行解码，并以每个可能的数据速率例如由编码器（76）重新编码。 比较器例如比较器（84）将再编码的符号与原始接收到的符号进行比较，并且计数器（例如计数器（100））对符号错误的数量进行计数。 每个解码过程产生可能包括循环冗余校验（CRC）结果的解码过程的质量的指示，例如CRC（120）或Yamamoto质量度量。 计数的错误和质量指示包括传递到处理器（例如微处理器（56））的误差度量。 处理器分析每个数据速率的误差度量，并确定输入符号被编码的最可能的速率。

公开(公告)号：WO1994023491A1

公开(公告)日：1994-10-13

申请号：PCT/US1994003299

申请日：1994-03-25

Applicant: QUALCOMM INCORPORATED ,  ALPS ELECTRIC CO., LTD.

Inventor： QUALCOMM INCORPORATED ,  ALPS ELECTRIC CO., LTD. ,  KORNFELD, Richard, K. ,  WEILAND, Ana, L. ,  OKAZAKI, Mitsunari

IPC: H03F01/30

CPC classification number: H03F1/306 ,  H03F1/0261

Abstract: A control circuit for a multi-stage power amplifier (such as in a portable radio transmitter) compensates for fluctuations in ambient temperature, load, signal level and power supply voltage. The control voltage is set by comparing a biasing level which is related to the amplifier input signal level to a voltage proportional to the power supply current of the last stage of the amplifier. The control voltage resulting from the comparison establishes the operating point of the last stage of the power amplifier.

Abstract translation: 用于多级功率放大器（例如便携式无线电发射机）的控制电路补偿环境温度，负载，信号电平和电源电压的波动。 通过将与放大器输入信号电平相关的偏置电平与放大器的最后级的电源电流成比例的电压进行比较来设定控制电压。 由比较产生的控制电压建立功率放大器最后一级的工作点。

公开(公告)号：WO1994013066A1

公开(公告)日：1994-06-09

申请号：PCT/US1993011261

申请日：1993-11-18

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  WEAVER, Lindsay, A., Jr.

IPC: H04B01/66

CPC classification number: G06F17/16 ,  G06F17/15 ,  H04B1/7115

Abstract: A method and apparatus for computing a scalar projection of a vector onto another vector. The apparatus comprises a multiplying circuit (94) and a summing circuit (96). The multiplying circuit (94) is for multiplying a value representative of a first component of a first vector with a value representative of a first component of a second vector to provide a first intermediate value, and for multiplying a value representative of a second component of a first vector with a value representative of a second component of a second vector to provide a second intermediate value. The summing circuit (96) sums the first and second intermediate values to provide a resultant value representative of the scalar projection of the first vector onto the second vector. The apparatus may further comprise a first storing circuit (80, 82), a first selection circuit (88), a second storing circuit (84, 86) and a second selection circuit (90). The first storing circuit (80, 82) is for storing the values representative of the first and second components of the first vector, and the second storing circuit (84, 86) is for storing the values representative of the first and second components of the second vector. The selection circuits (88, 90) provides an ordered supply of these values to the multiplying circuit (94).

Abstract translation: 一种用于计算向量到另一向量的标量投影的方法和装置。 该装置包括乘法电路（94）和求和电路（96）。 乘法电路（94）用于将表示第一矢量的第一分量的值与表示第二矢量的第一分量的值相乘以提供第一中间值，并且将代表第一矢量的第二分量的值乘以 第一矢量，其具有表示第二矢量的第二分量的值，以提供第二中间值。 求和电路（96）对第一和第二中间值求和，以将代表第一向量的标量投影的结果值提供给第二向量。 该装置还可以包括第一存储电路（80,82），第一选择电路（88），第二存储电路（84,86）和第二选择电路（90）。 第一存储电路（80,82）用于存储表示第一矢量的第一和第二分量的值，第二存储电路（84,86）用于存储表示第一和第二分量的第一和第二分量的值 第二个矢量。 选择电路（88,90）向乘法电路（94）提供这些值的有序电源。

公开(公告)号：WO1994008418A1

公开(公告)日：1994-04-14

申请号：PCT/US1993009112

申请日：1993-09-24

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  SIH, Gilbert, C.

IPC: H04M09/08

CPC classification number: H04B3/234 ,  G10L19/012 ,  H04B3/23 ,  H04M9/082

Abstract: An echo canceller and method for cancelling in a return channel signal an echoed receive channel signal where the echoed receive channel signal is combined by an echo channel (142) with an input return channel signal. A control unit (152) determines from the receive channel signal, the combined signal, and first and second echo residuals, one of a plurality of control states wherein a first control state is indicative of a receive channel signal above a first predetermined energy level, wherein when the control unit (152) is in the first control state it generates the first control signal and generates the second control signal when at least one of a first energy ratio of the first echo residual signal and the combined signal exceed a predetermined level.

Abstract translation: 回波消除器和方法，用于在返回信道中消除回波接收信道信号，其中回波接收信道信号由回波信道（142）与输入返回信道信号组合。 控制单元（152）从接收信道信号，组合信号以及第一和第二回波残差确定多个控制状态中的一个，其中第一控制状态指示高于第一预定能量级的接收信道信号， 其中，当所述控制单元（152）处于所述第一控制状态时，当所述第一回波残留信号和所述组合信号的第一能量比率中的至少一个超过预定水平时，产生所述第一控制信号并产生所述第二控制信号。

公开(公告)号：WO1992022891A1

公开(公告)日：1992-12-23

申请号：PCT/US1992004605

申请日：1992-06-03

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  JACOBS, Paul, E. ,  GARDNER, William, R. ,  LEE, Chong, U. ,  GILHOUSEN, Klein, S. ,  LAM, S., Katherine ,  TSAI, Ming-Chang

IPC: G10L09/14

CPC classification number: H04L1/0057 ,  G10L19/005 ,  G10L19/012 ,  G10L19/12 ,  G10L19/22 ,  G10L19/24 ,  G10L25/78 ,  G10L2025/786 ,  H04B1/66 ,  H04J3/1688 ,  H04L1/0014 ,  H04L1/0017 ,  H04L1/0041 ,  H04L1/0046

Abstract: An apparatus and method for performing speech signal compression, by variable rate coding of frames of digitized speech samples (10). The level of speech activity for each frame of digitized speech samples is determined and an output data packet rate is selected from a set of rates based upon the determined level of frame speech activity. A lowest rate of the set of rates corresponds to a detected minimum level of speech activity, such as background noise or pauses in speech, while a highest rate corresponds to a detected maximum level of speech activity, such as active vocalization. Each frame is then coded according to a predetermined coding format for the selected rate wherein each rate has a corresponding number of bits representative of the coded frame. A data packet is provided for each coded frame with each output data packet of a bit rate corresponding to the selected rate.

Abstract translation: 一种用于通过数字化语音样本（10）的帧的可变速率编码来执行语音信号压缩的装置和方法。 确定每个数字化语音样本帧的语音活动水平，并且基于所确定的帧语音活动水平从一组速率中选择输出数据分组速率。 一组速率的最低速率对应于检测到的语音活动的最低水平，例如背景噪声或语音中的暂停，而最高速率对应于检测到的语音活动的最大级别，例如主动发声。 然后根据所选择的速率的预定编码格式对每个帧进行编码，其中每个速率具有表示编码帧的相应位数。 为每个编码帧提供数据分组，每个输出数据分组的比特率对应于所选择的速率。

公开(公告)号：WO1992022166A1

公开(公告)日：1992-12-10

申请号：PCT/US1992004606

申请日：1992-06-03

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  LEE, Chong, U.

IPC: H04N01/415

CPC classification number: G06T9/40 ,  H04N19/102 ,  H04N19/129 ,  H04N19/13 ,  H04N19/15 ,  H04N19/154 ,  H04N19/176 ,  H04N19/18 ,  H04N19/60 ,  H04N19/63 ,  H04N19/91 ,  H04N19/96 ,  H04N19/98

Abstract: An adaptive block size image compression method and system for compressing image data, a respective method and system for further compressing the image data for transmission. Each block and corresponding sub-blocks of pixel data is subjected to a discrete cosine transform (DCT) operation (10a-10d). Varying levels of sub-blocks of resulting corresponding transform coefficients (12a-12d) are selected for construction into a composite transform coefficient block (QC) corresponding to each input block of pixel data. The selection of transform coefficient block size for the composite block is determined by a comparison process (20, 26, 32) between transform block and sub-block coding efficiency. The composite block is variable length coded to further reduce bit count in the compressed data. A discrete quadtree transform (DQT) operation is in supplement of the adaptive block size block selection with coefficient replacement to optimize image data compression.

Abstract translation: 一种用于压缩图像数据的自适应块大小图像压缩方法和系统，用于进一步压缩图像数据以进行传输的相应方法和系统。 对像素数据的每个块和对应的子块进行离散余弦变换（DCT）运算（10a-10d）。 选择所得到的对应变换系数（12a-12d）的子块的不同级别用于构造成对应于像素数据的每个输入块的复合变换系数块（QC）。 通过变换块和子块编码效率之间的比较处理（20,26,32）来确定复合块的变换系数块大小的选择。 复合块是可变长度编码的，以进一步减少压缩数据中的位数。 离散四叉树变换（DQT）操作补充了具有系数替换的自适应块大小块选择，以优化图像数据压缩。