公开(公告)号：WO1992022145A1

公开(公告)日：1992-12-10

申请号：PCT/US1992004584

申请日：1992-06-02

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  STENGEL, Robert, E. ,  SHARP, Ronald, E. ,  YESTER, Francis, R.

IPC: H04B01/16

CPC classification number: H04B1/1027 ,  H04B1/1615 ,  H04L1/20 ,  H04W52/0238 ,  Y02D70/40

Abstract: A communication device (200) capable of operating in a communication system (100) having a control system which generates information signals with redundant information is disclosed. The communication device comprises: a receiver (214) for receiving the information signals; a circuit which can determine the signal quality of the received information signals (234); and a controller (226) which decodes the received information signals, and further compares the signal quality of the information signals with a predetermined value, and decides if the received signal quality is at least equal to the predetermined value in order to only decode a portion of the information signal. Upon the communication device decoding a portion of the information signal, the communication device (200) is placed in a battery saving mode in order to conserve battery life.

Abstract translation: 一种可在具有控制系统的通信系统（100）中操作的通信设备（200），所述控制系统生成包含冗余信息的信息信号。 该通信设备包括：接收器（214），用于接收信息信号; 可以确定所接收的信息信号的质量的电路（234）; 和控制器（226），其解码所接收的信息信号，信息信号的质量与预定值进行比较，判定所接收的信号的质量是否至少等于预定值，以便仅解码的一部分 信息信号。 当通信设备解码一部分信息信号时，所述通信设备（200）处于节电模式，以便保持电池的寿命。

公开(公告)号：WO1992014309A1

公开(公告)日：1992-08-20

申请号：PCT/US1991009633

申请日：1991-12-24

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  STENGEL, Robert, E. ,  DAVENPORT, Roger, A.

IPC: H04B07/02

CPC classification number: H04W52/146 ,  H04W52/245 ,  H04W52/248

Abstract: The transmit power of a subscriber unit (106) operating in a communication system (100) is adjusted by a value which corresponds to the measured noise characteristic of a received signal at a receiving site (104).

Abstract translation: 在通信系统（100）中操作的用户单元（106）的发送功率通过对应于接收站点（104）处接收到的信号的测量噪声特性的值来调整。

公开(公告)号：WO1992009146A1

公开(公告)日：1992-05-29

申请号：PCT/US1991007455

申请日：1991-10-10

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  STENGEL, Robert, E. ,  YESTER, Francis, R.

IPC: H04B01/16

CPC classification number: H04W52/0238 ,  Y02D70/00

Abstract: A communication device (200) capable of operating in a communication system (100) having a control system which generates information signals with redundant information is disclosed. The communication device comprises: a receiver (214) for receiving the information signals; a circuit which can determine the signal quality of the received information signals (234); and a controller (226) which decodes the received information signals, and further compares the signal quality of the information signals with a predetermined value, and decides if the received signal quality is at least equal to the predetermined value in order to only decode a portion of the information signal. Upon the communication device decoding a portion of the information signal, the communication device (200) is placed in a battery saving mode in order to conserve battery life.

Abstract translation: 公开了能够在具有生成具有冗余信息的信息信号的控制系统的通信系统（100）中进行操作的通信装置（200）。 通信设备包括：接收器（214），用于接收信息信号; 可以确定所接收的信息信号（234）的信号质量的电路; 以及对接收到的信息信号进行解码的控制器（226），并且将信息信号的信号质量与预定值进行比较，并且确定接收到的信号质量是否至少等于预定值，以便仅解码部分 的信息信号。 在通信设备对信息信号的一部分进行解码时，通信设备（200）被置于电池节电模式，以节省电池寿命。

公开(公告)号：EP2002541A2

公开(公告)日：2008-12-17

申请号：EP07758145.2

申请日：2007-03-08

Applicant: Motorola, Inc.

Inventor： CAFARO, Nicholas, G. ,  GRADISHAR, Thomas, L. ,  STENGEL, Robert, E.

IPC: H03H11/26

CPC classification number: H03H11/265 ,  H03K5/131 ,  H03K2005/00065 ,  H03L7/1806

Abstract: Improvement of quantization errors that arise in a delay line with finite resolution. A direct digital synthesizer (DDS), which contains numerically controlled oscillator (NCO) and a digital-to-phase converter (DPC), is placed in the feedback loop of a phase locked loop (PLL). The DDS is used as a fractional divider of the voltage controlled oscillator (VCO) frequency, such that the reference frequenc of the DDS is made variable. Alignment of the edges provided by the DDS delay line (607, 617) may then be adjusted. Mismatch errors in the DDS delay line are reduced by utilizing independently tunable delay elements (685, 690).

公开(公告)号：EP0888675B1

公开(公告)日：2004-09-22

申请号：EP97921090.3

申请日：1997-04-02

Applicant: MOTOROLA, INC.

Inventor： O'DEA, Robert, J. ,  STENGEL, Robert, E.

IPC: H04L1/00 ,  H04L27/20

CPC classification number: H04L27/2032 ,  H04L27/368

Abstract: A modulated signal, having a varying magnitude signal envelope, is conditioned, such as to facilitate amplification (500). Minimum values are determined values for portions of the signal envelope (520, 530), and a window expansion function applied to scale each portion of the signal envelope having a minimum value below a particular threshold, such that each scaled portion has a new minimum value of at least the particular threshold (535, 540, 550, 555).

公开(公告)号：EP1444783A2

公开(公告)日：2004-08-11

申请号：EP02773869.9

申请日：2002-10-23

Applicant: MOTOROLA, INC.

Inventor： JUAN, Jui-Kuo ,  STENGEL, Robert, E. ,  MARTIN, Frederick, L. ,  BOCKELMAN, David, E.

IPC: H03L1/00

CPC classification number: H03L7/16 ,  H03L7/07 ,  H03L7/0812 ,  H03L7/14 ,  H03L2207/08

Abstract: A delay locked loop frequency synthesizer in several embodiments uses a primary delay line element (24) and one or more secondary delay elements (162 164, 270, 310). In one embodiment, a main delay line (24) is used to coarsely select a frequency output while a secondary delay element (162 164, 270, 310), either passive or active, is used to increase the resolution of the primary delay line (24). In the passive embodiment, a coarse and fine frequency selection is possible by selecting components from the output taps of the main delay line (24) as a driving signal for the passive secondary delay element (310) to provide the coarse adjustment and selecting an output from the secondary delay element (310) to provide the fine selection.

公开(公告)号：EP0746903B1

公开(公告)日：2001-10-24

申请号：EP94925806.5

申请日：1994-08-05

Applicant: MOTOROLA, INC.

Inventor： MURI, David, L. ,  STENGEL, Robert, E.

IPC: H03F3/217 ,  H04B1/16

CPC classification number: H03F3/2173

Abstract: Pulsewidth-modulated amplifier (100) includes a controller (102) which provides for a set of compensated signals (114, 158 and 160). The compensated signals are used for driving a speaker (136). Controller (100) includes a storage area for storing distortion characteristics for the amplifier for a predetermined operational frequency range. The compensated drive signals (114, 158 and 160) help compensate for the electrical non-linear distortions that occur in amplifier (100) and thereby help reduce the output distortion of amplifier (100).

公开(公告)号：EP0746903A1

公开(公告)日：1996-12-11

申请号：EP94925806.0

申请日：1994-08-05

Applicant: MOTOROLA, INC.

Inventor： MURI, David, L. ,  STENGEL, Robert, E.

IPC: H03F3

CPC classification number: H03F3/2173

Abstract: Pulsewidth-modulated amplifier (100) includes a controller (102) which provides for a set of compensated signals (114, 158 and 160). The compensated signals are used for driving a speaker (136). Controller (100) includes a storage area for storing distortion characteristics for the amplifier for a predetermined operational frequency range. The compensated drive signals (114, 158 and 160) help compensate for the electrical non-linear distortions that occur in amplifier (100) and thereby help reduce the output distortion of amplifier (100).

公开(公告)号：EP0683950A1

公开(公告)日：1995-11-29

申请号：EP94909607.0

申请日：1994-02-10

Applicant: MOTOROLA, INC.

Inventor： STENGEL, Robert, E. ,  BACKOFF, Charles, A.

IPC: H03F3 ,  H04L27

CPC classification number: H04L27/362 ,  H03F3/2176 ,  H03F3/602

Abstract: A high efficiency amplitude/phase modulation amplifier circuit (100) includes a first (102) and a second (106) high efficiency amplifier. These amplifiers (102 and 106) amplify two constant amplitude/phase modulated signals. A combiner (104) combines the output signals from the amplifiers (102 and 106) to produce a combined signal to a load (108). Two shunt elements (202 and 204) are included to prevent the reactive components of the combined signal from reaching the amplifiers (102 and 106). With no reactive components reflected back, the amplifiers (102 and 106) can remain non-linear even though they are used to amplify an amplitude/phase modulated signal which includes Amplitude Modulation (AM) components.

公开(公告)号：EP0569486A1

公开(公告)日：1993-11-18

申请号：EP92904869.0

申请日：1991-12-24

Applicant: MOTOROLA INC.

Inventor： STENGEL, Robert, E. ,  DAVENPORT, Roger, A.

IPC: H04B1 ,  H04B7

CPC classification number: H04W52/146 ,  H04W52/245 ,  H04W52/248

Abstract: On règle la puissance de transmission d'une unité d'abonné (106) fonctionnant dans un système de communication (100) au moyen d'une valeur correspondant à la mesure du bruit caractéristique d'un signal reçu à un site de réception (104).