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.

Semiconductor structure, semiconductor device, communicating device, integrated circuit, and process for fabricating the same

Abstract: High quality epitaxial layers of compound semiconductor materials can be grown overlying large silicon wafers by first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline compound semiconductor layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer.

High bit rate communication system for overcoming multipath

Abstract: A communication system for relatively high data bit rate RF communication overcomes multipath interference by employing relatively narrow beam antenna sectors and by selecting the best communication path established between two terminals, at least one of which has narrow beam antenna sectors. The communication path selection process includes determining the signal integrity of data communicated between the terminals. One implementation includes the narrow beam antenna sectors at each terminal.

Self-aligned magnetic clad write line and its method of formation

Abstract: A self-aligned magnetic clad bit line structure (274) for a magnetic memory element (240 a) and its method of formation are disclosed, wherein the self-aligned magnetic clad bit line structure (274) extends within a trench (258) and includes a conductive material (264), magnetic cladding sidewalls (262) and a magnetic cladding cap (252). The magnetic cladding sidewalls (262) at least partially surround the conductive material (264) and the magnetic cladding cap (252) is substantially recessed within the trench with respect to the top of the trench.

Zero intermediate frequency receiver having an automatic gain control circuit

Abstract: A receiver automatic gain control (AGC) circuit includes a first adjustable gain control amplifier (158) which is responsive to a gain control signal (156). The AGC circuit further includes a second adjustable gain control amplifier (114) and a control circuit (116) which receives the gain control signal (156) and provides a modified gain control signal or VCNTRL (152) to the second adjustable control amplifier (114). The control circuit (116) also limits the amount of gain control applied to adjustable gain control amplifiers (114 and 118) when the gain control signal (156) reaches a certain predetermined level. This provides for all further gain reduction to occur at the first adjustable gain control amplifier (158) and thereby reduce the chances for distortion under high input signal conditions.

Satellite cellular network resource management method and apparatus

Abstract: A method for managing resource usage within a cellular communications system (10) having at least one satellite (12) and, capable of communicating with the satellite(s) (12), at least one controlling station (28) and multiple ground terminals (26). The controlling station (28) predicts (372, 380) system communication traffic and operating capabilities for a future period; generates (216) a system plan (250) and an individual operational plan (270-30n) for each satellite (12) based on the prediction; distributes (222) each individual operational plan (270-30n) to each corresponding satellite (12); monitors (226) execution of the system plan (250) during the future period to determine (228) whether the plan is operating acceptably and when the plan is not operating acceptably (228), generates (216) a new plan, or portion thereof, to alleviate the unacceptable operation; and repeats the foregoing steps for additional future periods. Each satellite (12) receives (502), stores (504), executes (224) and monitors execution (226) of its individual operational plan (270-30n) and transmits out-of-plan messages (338) to the controlling station (28) when it detects an out-of-plan condition (336).