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April 9, 2014

Jonathan Tobin: Why Did Kerry Lie About Israeli Blame?

Samuel G. Freedman: A resolution 70 years later for a father's unsettling legacy of ashes from Dachau

Jessica Ivins: A resolution 70 years later for a father's unsettling legacy of ashes from Dachau

Kim Giles: Asking for help is not weakness

Kathy Kristof and Barbara Hoch Marcus: 7 Great Growth Israeli Stocks

Matthew Mientka: How Beans, Peas, And Chickpeas Cleanse Bad Cholesterol and Lowers Risk of Heart Disease

Sabrina Bachai: 5 At-Home Treatments For Headaches

The Kosher Gourmet by Daniel Neman Have yourself a matzo ball: The secrets bubby never told you and recipes she could have never imagined

April 8, 2014

Lori Nawyn: At Your Wit's End and Back: Finding Peace

Susan B. Garland and Rachel L. Sheedy: Strategies Married Couples Can Use to Boost Benefits

David Muhlbaum: Smart Tax Deductions Non-Itemizers Can Claim

Jill Weisenberger, M.S., R.D.N., C.D.E : Before You Lose Your Mental Edge

Dana Dovey: Coffee Drinkers Rejoice! Your Cup Of Joe Can Prevent Death From Liver Disease

Chris Weller: Electric 'Thinking Cap' Puts Your Brain Power Into High Gear

The Kosher Gourmet by Marlene Parrish A gift of hazelnuts keeps giving --- for a variety of nutty recipes: Entree, side, soup, dessert

April 4, 2014

Rabbi David Gutterman: The Word for Nothing Means Everything

Charles Krauthammer: Kerry's folly, Chapter 3

Amy Peterson: A life of love: How to build lasting relationships with your children

John Ericson: Older Women: Save Your Heart, Prevent Stroke Don't Drink Diet

John Ericson: Why 50 million Americans will still have spring allergies after taking meds

Cameron Huddleston: Best and Worst Buys of April 2014

Stacy Rapacon: Great Mutual Funds for Young Investors

Sarah Boesveld: Teacher keeps promise to mail thousands of former students letters written by their past selves

The Kosher Gourmet by Sharon Thompson Anyone can make a salad, you say. But can they make a great salad? (SECRETS, TESTED TECHNIQUES + 4 RECIPES, INCLUDING DRESSINGS)

April 2, 2014

Paul Greenberg: Death and joy in the spring

Dan Barry: Should South Carolina Jews be forced to maintain this chimney built by Germans serving the Nazis?

Mayra Bitsko: Save me! An alien took over my child's personality

Frank Clayton: Get happy: 20 scientifically proven happiness activities

Susan Scutti: It's Genetic! Obesity and the 'Carb Breakdown' Gene

Lecia Bushak: Why Hand Sanitizer May Actually Harm Your Health

Stacy Rapacon: Great Funds You Can Own for $500 or Less

Cameron Huddleston: 7 Ways to Save on Home Decor

The Kosher Gourmet by Steve Petusevsky Exploring ingredients as edible-stuffed containers (TWO RECIPES + TIPS & TECHINQUES)

Jewish World Review Nov. 18, 2005 / 16 Mar-Cheshvan, 5766

Flying PC, Antenna Deliver Hi-Definition TV Pictures

By Mark Kellner

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http://www.JewishWorldReview.com | Whether it's a slow-speed chase on a California freeway or a law- enforcement agency seeking to spot people doing bad things, computer technology is bringing high definition images down to earth.


The pictures are so sharp, Alan Purwin of Van Nuys, California, says, that you can read the license plate on a vehicle from 7,000 feet in the air. That kind of detail can either make for great television or serious crime stopping.


Mr. Purwin is an Indiana-born pilot and entrepreneur who's spent most of the past 30 years literally up in the air as a helicopter pilot. He owns Helinet Aviation, a firm that leases helicopters as well as develop highly specialized equipment for them, as well as Cineflex, which develops the systems that capture and transmit the video.


Most recently, Mr. Purwin and his colleagues achieved some notoriety for their work during Hurricane Katrina, showing images of levees collapsing and the resulting flood damage. Though it wasn't their idea, the Helinet choppers became the "pool" helicopter video feed for all the major networks. And unlike the Hollywood movies his firm has also worked on, the devastation of the hurricane was all too real.


"Flying around the affected areas from Katrina was different from anything I've experienced in my life," Mr. Purwin said in a telephone interview Nov. 10. "We didn't go there to be the news pool helicopter, we went there because we thought it was the right thing to do."


What they use is a helicopter equipped with a gimbal that Cineflex has developed. A gimbal looks like a ball on the end of a tube; in this case it can do a couple of interesting things. One is to accommodate very long lenses, which is the basis for the license plate-reading claim. The other is that the gimbal pivots in just about every which way, making it extremely useful in terms of positioning the camera, as well as following action on the ground, such as when the slow-speed chase driver jumps out and starts running.


The other technology innovations are more related to computers: a portable PC running Microsoft Corp.'s Windows CE operating system controls video matters inside the aircraft, including the compression and transmission of the high definition images, which are 300 megabit streams that drop down to 19.3 megabits, saving a lot of transmission bandwidth.


The video compression issue isn't minor, Mr. Purwin said. If an analog video signal has some problems, a viewer might see "snow" in the picture. In high-definition television, if there are lost bits of data, the whole picture is lost.


Outside, a gyroscope-based antenna system, also computer guided, locks onto a ground station so images are received. On the ground, the signal is restored to its high-def format.


Mr. Purwin said his firm is the "first to take high definition video from an aerial, wireless environment, compress it for digital microwave and decompress it at the download site, maintaining resolution end-to-end."


Such capabilities will be important as television stations nationwide switch to HDTV, but they can also be used by military and law enforcement agencies to monitor activities on the ground. The firm has sold a number to police and government agencies - a federal client he can't name has acquired three customized helicopters, which, Mr. Purwin said, could be flown in a C-130 cargo aircraft to remote locations if needed.


The future holds other technologies that will likely aid law enforcement users, said Ron Magocsi, Helinet Aviation's engineering director. One challenge is the limited microwave spectrum available; Mr. Magocsi, a longtime television news engineer, is looking at other ways of getting the signal to where it needs to go.


I'm impressed that a Windows CE device can play traffic cop in the midst of this hardware, but it's also worth noting that the Cineflex and Helinet firms' technology could have some significant impact on what we watch as entertainment and what law enforcement watches to keep us safe. More information can be found at http://www.helinet.com

Every weekday JewishWorldReview.com publishes what many in in the media and Washington consider "must-reading". Sign up for the daily JWR update. It's free. Just click here.

JWR contributor Mark Kellner has reported on technology for industry newspapers and magazines since 1983, and has been the computer columnist for The Washington Times since 1991.Comment by clicking here.

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© 2005, News World Communications, Inc. Reprinted with permission of The Washington Times. Visit the paper at http://www.washingtontimes.com

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