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.

Land vehicle multiple navigation route apparatus.

Abstract: Land vehicle multiple navigation route apparatus (10) includes a computer (11) for calculating at least first and second navigation routes (1, 2, or 3) between start (72) and destination (73) locations Both routes are preferably visible to the vehicle operator at the same time along with route criteria such as route travel mileage and/or route estimated travel time The vehicle operator then selects which of the displayed routes is to be used for providing him with route guidance information to the desired destination The route display format may be a graphic map display (70) with routes displayed in different colors on a color CRT display (18) The second navigation route is calculated after calculating the first route, preferably by excluding some road path segments (1D) which were included in the first calculated route Preferably the criterion to be used for alternate route calculation is determined prior to calculation of the first route Preferably a vehicle operator has a choice of routes which may be used for route guidance to a destination without requiring vehicle operator input after the calculation of the first route to specify how to arrive at a second route

A method and apparatus for remotely configuring a wireless communication device

Abstract: An internet radio for portable applications and uses such as in an automobile enables remotely configuring a wireless communication device comprising the steps of remotely configuring a format for providing content on said wireless communication device for a first user; remotely configuring a second format for providing content on said wireless communication device for a second user; receiving configuration data representing said format for said first user and said format for said second user from a remote network; and providing selected content from content downloaded from said network. Customized information is also communicated to the radio such as stock quotes, travel information, advertising, and e-mail. Onboard global positioning allows for channel updating by location, traffic information, geographic advertising and available similar content.

Cellular voice and data radiotelephone system

Abstract: A data message transmission system for a cellular radiotelephone system provides protection against data loss caused by multipath fade and subscriber unit handoff. Data from data terminal equipment (801) to be transmitted is converted by a system data processor (805) and radio signalling interface (807) into a format compatible with radio transmission prior to transmission by a transceiver (809). The data is reconverted to its original format following reception. Handoff is accomplished by halting the data transmission prior to handoff and resuming data transmission after handoff. Call supervision occurs via busy-idle bit coding performed in radio signalling interface (807).

Mobile WiMAX systems: performance and evolution

Abstract: Mobile WiMAX was successfully adopted by ITU as one of the IMT-2000 technologies in November 2007. Since then mobile WiMAX (a.k.a. IP-OFDMA) has officially become a major global cellular wireless standard along with 3GPP UMTS/HSPA and 3GPP2 CDMA/ EVDO. Mobile WiMAX is an OFDM-based technology available for deployment today, and new WIMAX devices come to market at much reduced cost than that of current 3G solutions. Currently over 260 service providers are deploying fixed, portable and mobile WiMAX networks in 110 countries. This article provides an overview of the mobile WiMAX system and its performance under various configurations, channel conditions, and types of data traffic. Furthermore, the article provides an overview of mobile WiMAX evolution.

Towards a tool for the Subjective Assessment of Speech System Interfaces (SASSI)

Abstract: Applications of speech recognition are now widespread, but user-centred evaluation methods are necessary to ensure their success. Objective evaluation techniques are fairly well established, but previous subjective techniques have been unstructured and unproven. This paper reports on the first stage in the development of a questionnaire measure for the Subjective Assessment of Speech System Interfaces (SASSI). The aim of the research programme is to produce a valid, reliable and sensitive measure of users' subjective experiences with speech recognition systems. Such a technique could make an important contribution to theory and practice in the design and evaluation of speech recognition systems according to best human factors practice. A prototype questionnaire was designed, based on established measures for evaluating the usability of other kinds of user interface, and on a review of the research literature into speech system design. This consisted of 50 statements with which respondents rated their level of agreement. The questionnaire was given to users of four different speech applications, and Exploratory Factor Analysis of 214 completed questionnaires was conducted. This suggested the presence of six main factors in users' perceptions of speech systems: System Response Accuracy, Likeability, Cognitive Demand, Annoyance, Habitability and Speed. The six factors have face validity, and a reasonable level of statistical reliability. The findings form a useful theoretical and practical basis for the subjective evaluation of any speech recognition interface. However, further work is recommended, to establish the validity and sensitivity of the approach, before a final tool can be produced which warrants general use.