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4-Traders Homepage  >  Equities  >  Nyse  >  Rockwell Collins, Inc.    COL

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Rockwell Collins : Patent Issued for Photoconductive Semiconductor Amplifier and Switch (USPTO 9473080)

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10/27/2016 | 08:01pm CEST

By a News Reporter-Staff News Editor at Electronics Newsweekly -- Rockwell Collins, Inc. (Cedar Rapids, IA) has been issued patent number 9473080, according to news reporting originating out of Alexandria, Virginia, by VerticalNews editors.

The patent's inventors are Cripe, David W. (Mount Vernon, IA); Patten, Scott L. (Marion, IA); Xie, Chenggang (Marion, IA); Landt, Don L. (Palo, IA).

This patent was filed on February 4, 2014 and was published online on October 18, 2016.

From the background information supplied by the inventors, news correspondents obtained the following quote: "Limitations in modulating bandwidth and efficiency in radio frequency (RF) power amplifiers prevent reductions in size, weight, power and cooling. Class-D power amplifiers offer the highest theoretical efficiency and bandwidth of known power amplifiers. The necessity of driving a floating, high side switch has hindered their widespread implementation.

"Switching power converters utilizing power switching devices in a half-bridge or full-bridge configuration are commonly operated in conditions where the active devices pass reverse current. In many cases, a schottky diode is placed in parallel with each active device to permit conduction of reverse current in a path other than the main switching devices. These schottky diodes add parasitic capacitance and inductance.

"Consequently, it would be advantageous if an apparatus existed that is suitable for power switching without complicated drive circuitry."

Supplementing the background information on this patent, VerticalNews reporters also obtained the inventors' summary information for this patent: "Accordingly, the present invention is directed to a novel apparatus for power switching without complicated drive circuitry.

"In at least one embodiment, a switch comprises two photoconductive semiconductors and two corresponding laser diodes driven by opposing voltage sources. The two photoconductive semiconductors are connected in series between a high and low voltage source with a radio frequency output at a center node between the photoconductive semiconductors.

"In another embodiment, a photoconductive semiconductor based switch includes two photoconductive semiconductors, each having one ohmic contact and one schottky contact. Such a switch exhibits superior bandwidth and efficiency.

"It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention claimed. The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate an embodiment of the invention and together with the general description, serve to explain the principles."

For the URL and additional information on this patent, see: Cripe, David W.; Patten, Scott L.; Xie, Chenggang; Landt, Don L.. Photoconductive Semiconductor Amplifier and Switch. U.S. Patent Number 9473080, filed February 4, 2014, and published online on October 18, 2016. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9473080.PN.&OS=PN/9473080RS=PN/9473080

Keywords for this news article include: Electronics, Semiconductor, Rockwell Collins Inc..

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2016, NewsRx LLC

(c) 2016 NewsRx LLC, source Technology Newsletters

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Financials ($)
Sales 2017 5 411 M
EBIT 2017 1 062 M
Net income 2017 711 M
Debt 2017 1 396 M
Yield 2017 1,75%
P/E ratio 2017 15,01
P/E ratio 2018 14,02
EV / Sales 2017 2,23x
EV / Sales 2018 2,09x
Capitalization 10 674 M
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Average target price 93,3 $
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Robert Kelly Ortberg Chairman, President & Chief Executive Officer
Bruce Michael King Senior Vice President-Operations
Patrick E. Allen Chief Financial Officer & Senior Vice President
Nan Mattai Senior VP-Engineering & Information Technology
Chris A. Davis Independent Director
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