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.

Low-powered communication system and method of operation

Abstract: A communication system includes a network control facility (205), two downstream channels (212, 213), at least one remote interface unit (209, 210), and at least one communication device (201, 202) associated with each remote interface unit (RIU). Each RIU operates in one of two operating modes: a low power, standby mode and a high power, active mode. The wake-up command instructs the RIU to transition from standby mode to active mode in order to receive user or control information over the primary downstream channel. The secondary downstream channel utilizes a substantially slower transmission speed (e.g., a lower order modulation) than does the primary downstream channel, thereby enabling the RIU to consume substantially less power when in standby mode than when in active mode, without adversely impacting the throughput rate of the primary downstream channel.

Industrial experience with design patterns

Abstract: A design pattern is a particular prose form of recording design information such that designs which have worked well in the past can be applied again in similar situations in the future. The availability of a collection of design patterns can help both the experienced and the novice designer recognize situations in which design reuse could or should occur. We have found that design patterns: 1) provide an effective "shorthand" for communicating complex concepts effectively between designers, 2) can be used to record and encourage the reuse of "best practices", 3) capture the essential parts of a design in compact form, e.g. for documentation of existing software architectures. Since the patterns community is one that shares information in an open forum and builds on the experiences of others, we chose to submit a joint paper on our industrial experiences with patterns. We focus on the lessons learned in our respective industrial settings as a first step towards answering the questions "Patterns sound very promising, but how are they actually used in the industry and what benefits, if any, do they bring in practice?" We proceed by briefly describing each of our respective experiences with patterns. This is followed by a joint "lessons learned" section and conclusion.

Method and System for the Support of a Long DRX in an LTE_Active State in a Wireless Network

Abstract: A method of DRX signaling in a long-term evolution infrastructure between an evolved node B (eNB) and user equipment (UE), the method having the steps of providing a DRX value in a header of a medium access control protocol data unit (MAC-PDU); acknowledging the MAC-PDU; and activating, deactivating or reconfiguring DRX based on the provided DRX value.

Method and system for providing a disambiguated keypad

Abstract: A keypad system (FIG. 2) and corresponding method (FIG. 3-4) suitable for use in a subscriber device (1) includes a capacitive touchpad (22) for detecting movement within a region, a driver device (12) coupled to the capacitive touchpad, wherein the driver device is for generating a touchpad data signal corresponding to the movement detected by the touchpad; and a controller (14) coupled to the driver device for receiving the touchpad data signal and for resolving the signal to one of a plurality of characters corresponding to the region. A keypad device (16) may be used for generating a key selection signal indicative of the region.

A multibit sigma-delta ADC for multimode receivers

Abstract: A 2.7-V sigma-delta modulator with a 6-bit quantizer is fabricated in a 0.18-/spl mu/m CMOS process. The modulator makes use of noise-shaped dynamic element matching (DEM) and quantizer offset chopping to attain high linearity over a wide bandwidth. The DEM algorithm is implemented in such a way as to minimize additional delay within the feedback loop of the modulator, thereby enabling the use of the highest resolution quantizer yet reported in a multibit sigma-delta analog-to-digital converter of this speed. The part achieves 95-dB peak spurious-free dynamic range and 77-dB signal-to-noise ratio over a 625-kHz bandwidth, and consumes 30 mW at a sampling frequency of 23 MHz. The part achieves 70-dB signal-to-noise ratio over a 1.92-MHz bandwidth and dissipates 50 mW when clocked at 46 MHz.