公开(公告)号：WO2005043286A3

公开(公告)日：2006-02-16

申请号：PCT/US2004031049

申请日：2004-09-22

Applicant: MOTOROLA INC ,  BROWN DANIEL P ,  BALASURIYA SENAKA ,  LEVINE STEPHEN N ,  NARASIMHAN NITYA ,  OTTING MARCIA J

Inventor： BROWN DANIEL P ,  BALASURIYA SENAKA ,  LEVINE STEPHEN N ,  NARASIMHAN NITYA ,  OTTING MARCIA J

IPC: G06F20060101 ,  H04Q7/20 ,  H04Q7/38 ,  H04Q9/00 ,  H04B5/00 ,  H04B7/00

CPC classification number: H04Q9/00 ,  H04L67/22

Abstract: A system and method for processing information about an incident is provided. The system comprises two or more communication devices (104, 112-126) in communication with each other and a central authority (128) capable of receiving data from the communication devices. Each communication device (104, 112- 126) includes a media sensor (222) to collect data relating to an incident event (102). One communication device (104), in response to a user activation input, transmits a request signal to one or more other communication devices (112-126). Any communication device (112-126) that receives the request signal may collect data relating to the incident event (102) in response to the request signal. The central authority (128), after receiving the data collected by the wireless communication devices (104, 112-126), performs an action in response to receiving the data.

Abstract translation: 提供了一种用于处理有关事件的信息的系统和方法。 该系统包括彼此通信的两个或多个通信设备（104,112-126）和能够从通信设备接收数据的中央机构（128）。 每个通信设备（104,112-126）包括用于收集与事件事件（102）有关的数据的媒体传感器（222）。 一个通信设备（104）响应于用户激活输入向一个或多个其他通信设备（112-126）发送请求信号。 接收请求信号的任何通信设备（112-126）可以响应于该请求信号而收集与事件事件（102）有关的数据。 中央机关（128）在接收到由无线通信设备（104,112-126）收集的数据之后，响应于接收到该数据而执行动作。

公开(公告)号：FI972749A0

公开(公告)日：1997-06-25

申请号：FI972749

申请日：1997-06-25

Applicant: MOTOROLA INC

Inventor： LEVINE STEPHEN N ,  BRAILEAN JAMES C ,  BANHAM MARK R

IPC: H04N7/50 ,  H04N7/66 ,  H04N19/89 ,  H04N

公开(公告)号：DE69125077D1

公开(公告)日：1997-04-17

申请号：DE69125077

申请日：1991-09-09

Applicant: MOTOROLA INC

Inventor： HEROLD BRENDA K ,  IORATTI CHRISTINE K ,  LEVINE STEPHEN N ,  DOMINIAK DOUGLAS ,  FLANDERS MARY BETH

IPC: H02P7/00 ,  H04Q7/38

公开(公告)号：GB2256562B

公开(公告)日：1995-05-31

申请号：GB9214032

申请日：1991-11-05

Applicant: MOTOROLA INC

Inventor： LEVINE STEPHEN N ,  PUHL LARRY C

IPC: H04W16/30 ,  H04W36/30 ,  H04Q7/00

Abstract: The hand-off process of the present invention minimizes the number of hand-offs in radiotelephone system using smaller, elongated cells that may provide radiotelephone coverage in an urban environment along streets. While in the idle mode, the process of the present invention keeps track of the radiotelephone's direction of travel. When the radiotelephone is making a call, the base station process of the present invention keeps track of any fade condition that occurs, both short term and long term, and hands the radiotelephone off to another cell if one of these conditions occur.

公开(公告)号：GB2239375A

公开(公告)日：1991-06-26

申请号：GB9025985

申请日：1990-11-29

Applicant: MOTOROLA INC

Inventor： BAKER JAMES C ,  LEVINE STEPHEN N ,  PUHL LARRY C ,  CARNEY SCOTT N

IPC: H04L1/00 ,  H03G3/34 ,  H04L1/24

Abstract: There is provided a mechanism for error detection characterized by: detecting the symmetry of error distributions over adjacent time intervals and muting of a radiotelephone in response to detected loss of substantial symmetry, unless errors are attributable to valid alternative detections. It is further characterized by: detecting the symmetry of error distributions over adjacent time intervals and muting a radiotelephone as a corrective response to detected consequential asymmetry or loss of substantial symmetry (unless errors are attributable to alternative detections of valid synchronization words) and cancelling any such corrective response upon subsequent alternative detections of valid synchronization words. The invention prevents false muting of the voice signal as a result of mistaking the shorter supervisory signal for error bits.

公开(公告)号：CA1281087C

公开(公告)日：1991-03-05

申请号：CA615598

申请日：1990-01-12

Applicant: MOTOROLA INC

Inventor： LEVINE STEPHEN N

IPC: H03K23/66 ,  H03L7/099 ,  H04L7/033 ,  H03L7/00 ,  H03K5/00 ,  H03K5/22

Abstract: MULTIPLE FREQUENCY DIGITAL PLL An improved multiple frequency digital phase-locked loop circuit is described. The improved digital phaselocked loops utilizes a single circuit to effect both phase and frequency adjustments. The multiple frequency digital phase-locked loop effects phase adjustments by selectively combining or subtracting a reference clock signal with a derived programmable clock signal thereby generating a composite digital phase-locked loop clock signal. The multiple frequency provides frequency adjustments by selectively adding or subtracting pulses from the composite clock signal at a rate determined by a programmably controllable clock signal. The improved multifrequency digital phase-locked loop is suitable for use as a tone detector with the addition of a lock detector wherein the phase-locked loop can be programmed for a plurality of known operating frequencies.

公开(公告)号：CA2063421A1

公开(公告)日：1990-12-27

申请号：CA2063421

申请日：1990-06-22

Applicant: MOTOROLA INC

Inventor： LEVINE STEPHEN N ,  PUHL LARRY C ,  CARNEY SCOTT N ,  GOODE STEVEN H

IPC: H04B7/005 ,  H04B7/26 ,  H04J3/00 ,  H04J3/16 ,  H04L7/00 ,  H04M11/00 ,  H04W56/00

Abstract: In a Time Division Multiple Access (TDMA) cellular system, there is provided a mechanism for synchronization and equalization comprising: providing synchronization information (S/S) sufficiently removed from the start of a TDM slot so as to maintain the integrity of that synchronization information (S/S) at adjacent cells and providing that synchronization information (S/S) not so far removed from the start of the slot as to necessitate adaptive equalization of information preceding the synchronization information (S/S) for sufficiently reliable recovery. The equalization is further enhanced by providing, roughly midway between the synchronization information (S/S) and the end of the slot, additional information (CC) upon which equalization may retrain. Accordingly, equalizers perform retrospective, non-adaptive equalization of information preceding the synchronization information (S/S), perform adaptive equalization of information following that synchronization information (S/S), and retrain utilizing known bit-sequences elsewhere within the TDM slot; the additional information (CC) comprises known bit-sequences identifying cells.

公开(公告)号：CA1120559A

公开(公告)日：1982-03-23

申请号：CA333059

申请日：1979-08-02

Applicant: MOTOROLA INC

Inventor： LEVINE STEPHEN N

IPC: H04L27/233 ,  H04L27/22

Abstract: CM-78876 DIGITAL DEMODULATOR FOR PHASE SHIFT KEYED SIGNALS A digital demodulator for differential phase shift keyed (DPSK) signals includes two pairs of 1-bit integrators for continuously taking the phase difference between successive DPSK bits. Each DPSK bit is subdivided into a plurality of bits, for example 15 bits. A weighted output signal having 4 bits is provided by each 1-bit integrator for each of the bits corresponding to a DPSK bit. The weighted output signals from each pair of 1-bit integrators are sine weighted and multiplied. The products are then added together for application to a comparator. The comparator compares the sum of the addition to a predetermined reference signal and provides a demodulated digital signal having a logical state dependent on whether the sum is greater or smaller than the predetermined reference signal.

公开(公告)号：SE9702422D0

公开(公告)日：1997-06-25

申请号：SE9702422

申请日：1997-06-25

Applicant: MOTOROLA INC

Inventor： BRAILEAN JAMES C ,  O'CONNELL KEVIN J ,  BANHAM MARK R ,  LEVINE STEPHEN N

IPC: H04N19/895 ,  H04N

Abstract: The present invention provides a method (100, 200) and a device (300, 400, 600) for containing and concealing errors which occur in a transmitted video bitstream. Utilizing a plurality of predetermined scanning patterns, particular macroblocks are chosen per frame to have their intensity information encoded and transmitted. This approach provides an efficient method to limit the degradation to the visual quality of a video sequence decoded from a bitstream corrupted by an extended error burst. Concealment of areas within a video sequence that are affected by short error bursts and/or random errors is achieved by estimating the corresponding lost macroblock information from the remaining uncorrupted macroblocks. That is, for each lost macroblock a prediction of the intensity information is generated through the use of a motion vector from a neighboring uncorrupted macroblock.

公开(公告)号：FI972750A

公开(公告)日：1997-06-25

申请号：FI972750

申请日：1997-06-25

Applicant: MOTOROLA INC

Inventor： BRAILEAN JAMES C ,  O'CONNELL KEVIN J ,  BANHAM MARK R ,  LEVINE STEPHEN N

IPC: H04N19/895 ,  H04N

Abstract: The present invention provides a method (100, 200) and a device (300, 400, 600) for containing and concealing errors which occur in a transmitted video bitstream. Utilizing a plurality of predetermined scanning patterns, particular macroblocks are chosen per frame to have their intensity information encoded and transmitted. This approach provides an efficient method to limit the degradation to the visual quality of a video sequence decoded from a bitstream corrupted by an extended error burst. Concealment of areas within a video sequence that are affected by short error bursts and/or random errors is achieved by estimating the corresponding lost macroblock information from the remaining uncorrupted macroblocks. That is, for each lost macroblock a prediction of the intensity information is generated through the use of a motion vector from a neighboring uncorrupted macroblock.