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Institution

Motorola

CompanySchaumburg, Illinois, United States
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.


Papers
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Patent
14 Dec 2000
TL;DR: In this article, the frequency hopping sequences of two or more masters are exchanged using identity codes, permitting the devices to anticipate collision time slots, e.g., as a function of their message queue size or latency, or other factors.
Abstract: Spread spectrum packet-switching radio devices are operated in two or more ad-hoc networks or pico-networks that share frequency-hopping channels and time slots that may collide The piconets can be short range wireless associations of communicating devices, for example according to the Bluetooth, Home RF or similar industry protocols One device in each piconet is a synchronizing master and others are slaves that follow the master's frequency hopping sequence The sequences of two or more operating piconets (masters) occasionally coincide, which could cause simultaneous transmissions that interfere or collide The frequency hopping sequences of two or more masters are exchanged using identity codes, permitting the devices to anticipate collision time slots Priorities are assigned to the simultaneously operating piconets during collision slots, eg, as a function of their message queue size or latency, or other factors Lower priority devices may abstain from transmitting during predicted collision slots, and/or a higher priority device may employ enhanced transmission resources during those slots, such as higher error correction levels, or various combinations of abstinence and error correction may be applied Collisions are avoided or the higher priority piconet is made likely to prevail in a collision Priorities are repetitively re-determined and re-assigned, to allocate communications resources among all the devices and piconets

181 citations

Patent
29 Apr 1998
TL;DR: A textile fabric including a plurality of electrically conductive fibers is characterized as providing sufficient current to induce either a wired or wireless coupling between the textile fabric and a portable electronic device as mentioned in this paper.
Abstract: A textile fabric including a plurality of electrically conductive fibers characterized as providing sufficient current to induce either a wired or wireless coupling between the textile fabric and a portable electronic device. The textile fabric is intended for fabrication into a functional article of clothing or other item made of the woven textile fabric, so as to increase functionality of the article of clothing or item made thereof. The plurality of electrically conductive fibers are characterized as creating an interconnect to a portable electronic device, including integrated components, electronics, or the like, or serving as an antenna for signals received and transmitted by the portable electronic device.

181 citations

Patent
03 Feb 2009
TL;DR: In this paper, a base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmissions, and multiplexing the two sets of resources into a subframe such that the one set of resources is multiplexed into at least a portion of the first set OFDM symbols based on an identifier associated with the base station.
Abstract: A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmission resources, multiplexing the two sets of resources into a subframe such that the first set of resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of resources is multiplexed into a second set of OFDM symbols, and transmitting the subframe. Upon receiving the subframe, a wireless device determines which set of transmission resources contains the PRS based on the identifier associated with the base station that transmitted the subframe and processes the set of resources containing the PRS to estimate timing (e.g., time of arrival) information.

181 citations

Patent
10 Dec 1990
TL;DR: In this article, a non-hermetic, three-dimensional, microwave semiconductor device carrier with integral waveguide couplers is disclosed, which provides pseudo-shielding cavities about the resident multiple semiconductor GaAs die.
Abstract: A non-hermetic, three-dimensional, microwave semiconductor device carrier with integral waveguide couplers is disclosed A molded plastic substrate having a suitable dielectric constant and varying thicknesses comprises plated conductors and locations for receiving GaAs MMIC's MMIC's are mounted to a metal backplate and die bonded to the plated conductors The waveguide couplers are integrally molded as part of the carrier substrate, and comprise plated through cylindrical members Signals from a waveguide cavity are coupled to the MMIC's by inserting the waveguide couplers into a waveguide port The carrier and integral waveguide coupler together with a plated molded cover forms a non-hermetic package providing pseudo-shielding cavities about the resident multiple semiconductor GaAs die Transmission line impedance control is enhanced varying the substrate thickness on a per conductor basis Frequency of operation exceeds 12 gigahertz

180 citations

Patent
13 Sep 1996
TL;DR: In this article, the authors present a system for automatic capture of internet access information in a broadcast signal for use by an internet access unit, which includes: a broadcasting unit having an Internet access information unit, IAIU, coupled to receive internet information, for encoding the internet information into a broadcast signals to provide an augmented signal and broadcasting said augmented signal; a receiving unit for receiving the augmented signal for a user; a capture unit, coupled with the receiving unit and interfaced with the internet, for automatically storing/utilizing the internet access data in accordance with a predetermined scheme
Abstract: The present invention provides a system (100, 200), device (300) and method (400) for facilitating automatic capture of internet access information in a broadcast signal for use by an internet access unit. The system includes: a broadcasting unit having an internet access information unit, IAIU, coupled to receive internet access information, for encoding the internet access information into a broadcast signal to provide an augmented signal and broadcasting said augmented signal; a receiving unit for receiving the augmented signal for a user; a capture unit, coupled to the receiving unit and interfaced with the internet, for automatically storing/utilizing the internet access information in accordance with a predetermined scheme; a display/television screen/audio unit, coupled to the capture unit and, where selected, to the capture unit, for displaying at least one of: information obtained by utilizing the internet access information and information from the broadcast signal.

180 citations


Authors

Showing all 27298 results

NameH-indexPapersCitations
Georgios B. Giannakis137132173517
Yonggang Huang13679769290
Chenming Hu119129657264
Theodore S. Rappaport11249068853
Chang Ming Li9789642888
John Kim9040641986
James W. Hicks8940651636
David Blaauw8775029855
Mark Harman8350629118
Philippe Renaud7777326868
Aggelos K. Katsaggelos7694626196
Min Zhao7154724549
Weidong Shi7052816368
David Pearce7034225680
Douglas L. Jones7051221596
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20232
20229
202129
2020131
2019134
2018144