Martyn WilliamsSenior U.S. Correspondent, IDG News Service

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Martyn Williams covers Silicon Valley and general technology breaking news for the IDG News Service, and is based in San Francisco.

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Drone carrying drugs, hacksaw blades crashes in Oklahoma prison

A drone carrying drugs, a cell phone, hacksaw blades and other contraband was discovered crashed in an Oklahoma prison yard on Monday morning.

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Chase Pay to take on Apple, Google and Samsung in 2016

JP Morgan Chase will launch its own smartphone payment platform in mid-2016, going head-to-head with rival services from Apple, Google and Samsung.

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Wal-Mart wants to deliver by drone too

Wal-Mart has applied for permission to begin testing home delivery by drones -- a move intended to ensure online rivals Amazon and Google don't corner the much-hyped market before it gets off the ground.

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World View a step closer to balloon space flight

World View says a successful test flight over the weekend puts it a step closer to commercial balloon flights high enough to see the curvature of the earth and the black of space.

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NEC's surveillance system will detect, track drones

NEC has developed a surveillance system that can spot drones from up to a kilometer away.

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Panasonic shows world's first UltraHD '4K' Blu-ray player

Panasonic will soon begin selling in Japan a Blu-ray Disc player compatible with 4K UltraHD discs, the first such player in the world.

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Sharp's Robohon is a cute little robot that doubles as a phone

From the country that brought you pretty much every crazy robot you've ever seen, Sharp on Tuesday showed off a prototype robot that doubles as a smartphone -- or is that a smartphone in the form of a robot? It's not entirely clear, but it is cute.

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16Lab shrinks its sensor-laden wearable computing ring, preps dev kit release

Japanese wearable gadget maker 16Lab has reduced the size and increased the functionality of its Bluetooth gesture controller ring and plans to put it and a development kit on sale soon.

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Agreement reached on controversial TPP trade deal, may affect some digital rights

Twelve countries representing nearly 40 percent of the global economy have reached basic agreement on an expansive new trade deal called the Trans Pacific Partnership.

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Nissan's new concept car is a digital canvas inside and out

Nissan's latest concept car will pass the digital cool test but it won't do much to stop distracted driving: the entire dashboard is one huge display on which drivers and passengers can post anything.

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IBM carbon nanotube breakthrough could bring faster, smaller chips

Researchers at IBM say they've made a major breakthrough in carbon nanotube technology that could speed the development of smaller, faster and more powerful chips.

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Hillary Clinton aides worried about antiquated technology, use of personal email

Senior aides to Hillary Clinton when she was secretary of state expressed concerns about the poor level of State Dept. computer technology and the use of personal email by staffers, according to emails released on Wednesday.

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What you need to know about the big changes coming to on-the-go payments this week

It's the biggest week in payment technology since Apple Pay was introduced last year, and the changes could have a long-term impact on how you buy goods and services in stores.

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Google triples self-driving car fleet in four months

Google's self-driving car fleet is expanding fast and in the last four months the number of cars it is permitted to drive on California streets has more than tripled.

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Tesla's autopilot mode expected in October

An autonomous driving mode that will take some of the strain away from the driver during long trips should arrive in Tesla cars in the next few weeks.