Motorola

About: Motorola is a company organization based out in Schaumburg, Illinois, United States. It is known for research contribution in the topics: Signal & Communications system. The organization has 27298 authors who have published 38274 publications receiving 968710 citations. The organization is also known as: Motorola, Inc. & Galvin Manufacturing Corporation.

Grammar adaptation through cooperative client and server based speech recognition

Abstract: A system (200) and method (300) for grammar adaptation is provided The method can include attempting a first recognition of a spoken utterance (304) using a first speech grammar (204), consulting (308) a second speech grammar (224) based on a recognition failure, and receiving a correct recognition result (310) and a portion of a speech grammar for updating (312) the first speech grammar The first speech grammar can be incrementally updated, or expanded, to broaden grammar coverage for adapting to a user's vocabulary and grammar over time

A fully integrated 0.5-5.5 GHz CMOS distributed amplifier

Abstract: A fully integrated 0.5-5.5-GHz CMOS-distributed amplifier is presented. The amplifier is a four stage design fabricated in a standard 0.6-/spl mu/m three-layer metal digital-CMOS process. The amplifier has a unity-gain cutoff frequency of 5.5 GHz, and a gain of 6.5 dB, with a gain flatness of /spl plusmn/1.2 dB over the 0.5-4 GHz band. Input and output are matched to 50 /spl Omega/, with worst-case return losses on the input and output of -7 and -10 dB, respectively. Power dissipation is 83.4 mW from a 3.0 V supply, input-referred 1-dB compression point varies from +6 dBm at 1 GHz to 8.8 dBm at 5 GHz. From a circuit standpoint, the fully integrated nature of the amplifier on the given substrate results in a heavily parasitic-laden design. Discussion emphasis is therefore placed on the practical design, modeling, and CAD optimization techniques used in the design process.

High efficiency CDMA RF power amplifier using dynamic envelope tracking technique

Abstract: This work describes a 2-W peak-envelope linear power amplifier based upon the envelope tracking (ET) technique with application to CDMA cellular radio handsets. Both drain voltages of a two stage monolithic GaAs IC are varied with respect to the long term rms value of the modulated signal using a high efficiency Class-S modulator. The modulator is implemented as a single chip silicon IC to supply currents in excess of 1 A. The RF amplifier IC utilizes two AlGaAs/InGaAs heterostructure insulated-gate FET structures which allows single voltage supply operation with state-of-the-art linearity and efficiency performance. When driven by a CDMA O-QPSK signal, the ET amplifier exhibits desired spectral linearity while achieving a remarkable 5/spl times/ improvement in overall efficiency, compared to fixed supply bias, when measured in a reverse link urban based mobile transmitter power profile.

Health Mashups: Presenting Statistical Patterns between Wellbeing Data and Context in Natural Language to Promote Behavior Change

Abstract: People now have access to many sources of data about their health and wellbeing. Yet, most people cannot wade through all of this data to answer basic questions about their long-term wellbeing: Do I gain weight when I have busy days? Do I walk more when I work in the city? Do I sleep better on nights after I work out?We built the Health Mashups system to identify connections that are significant over time between weight, sleep, step count, calendar data, location, weather, pain, food intake, and mood. These significant observations are displayed in a mobile application using natural language, for example, “You are happier on days when you sleep more.” We performed a pilot study, made improvements to the system, and then conducted a 90-day trial with 60 diverse participants, learning that interactions between wellbeing and context are highly individual and that our system supported an increased self-understanding that lead to focused behavior changes.

Wireless communication system for location based schedule management and method therefor

Abstract: A wireless communication system for location based schedule management ( 10 ) includes a plurality of wireless communication devices ( 40 ), including a wireless communication device ( 32 ) and a backup wireless communication device ( 47 ); a system controller ( 24 ) for generating a message; a RF transmitter ( 26 ) for transmitting the message ( 34 ) to the plurality of wireless communication devices ( 40 ); and an application server ( 76 ). The application server ( 76 ) includes a server memory ( 152 ) for storing an event location ( 134 ) and one or more event criteria parameters ( 129 ), a server processor ( 150 ) for processing a current location ( 122 ) of the wireless communication device ( 32 ); and a server event management application ( 82 ) for comparing the current location ( 122 ) with the event location ( 134 ). The server processor ( 150 ) sends a server command ( 84 ) to the system controller ( 24 ) in response to the comparison of the current location ( 122 ) and the event location ( 134 ) exceeding the event criteria parameters ( 129 ). The system controller ( 24 ) sends an update message ( 36 ) to the backup wireless communication device ( 47 ) in response to the server command ( 84 ).