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.

Device for use with a portable inertial navigation system ("PINS") and method for transitioning between location technologies

Abstract: A perimeter threshold of an area is defined. The location of a device (102) is tracked using a first location technology (108) when the device (102) precedes the perimeter threshold. The location of the device (102) is tracked using a second location technology (100) when the device (102) exceeds the perimeter threshold.

Method and apparatus of reducing power consumption in a CDMA communication unit

Abstract: A method of, and means for, exchanging a communicated signal with a base site (10) by a communication unit (20) within a cellular system is provided. The method includes the steps of, and means for, transceiving the communicated signal under a broadband format while active and receiving the communicated signal under a narrowband format while idle.

Capped shallow trench isolation and method of formation

Abstract: A method for forming a capped shallow trench isolation (CaSTI) structure begin by etching a trench opening (210). The opening (210) is filled with an oxide or like trench fill material (216b) via a deposition and chemical mechanical polish (CMP) step. The plug (216b) is reactive ion etched (RIE) to recess a top of the plug (216b) into the trench opening (210) to form a recessed plug region (216c). A silicon nitride or oxynitride capping layer (218b) is then formed over the recessed plug region (216c) via another deposition and polishing step. The nitride cap layer (218b) protects the underlying region (216c) from erosion due to active area preparation, cleaning, and processing.

Network of hierarchical communication systems and method therefor

Abstract: A hierarchical communication network includes primary, secondary, and tertiary communication systems. The primary system uses orbiting satellites as communication nodes and forms a pattern of cells that may cover the entire earth and that move over the earth. A given spectrum is divided among the cells in accordance with a reuse plan. Any number of secondary, terrestrial-based systems have secondary region areas of coverage that are substantially smaller than the distance to the orbits of the satellites used by the primary system. Secondary systems monitor the primary system to determine which channels of the spectrum are available for use in their secondary regions. Any number of tertiary, terrestrial-based systems reside within a secondary region and have tertiary region areas of coverage that are substantially confined within buildings. Tertiary systems use channels concurrently used by the primary system in the same area where their tertiary regions are located.

Method and circuit for acquisition by a radio receiver

Abstract: A method and associated circuitry for acquiring a channel of a set of frequency channels by a radio receiver. The radio receiver scans selected control channels and measures the power levels of signals generated upon the respective ones of the control channels and stores values. An attempt to effectuate a communication link with a transmitter which transmits a data signal upon one of the control channels is only attempted if the measured power level on such control channel increases beyond a certain amount. The tuning frequency of the tuning circuitry can be retuned when the tuning circuitry is initially tuned to receive a communication signal transmitted by a transmitter of a less-than-most desired network of transmitters according to a second embodiment.