Police in Hollywood, Fla. have discovered the cause of a problem that left dozens of people unable to unlock or start cars equipped with keyless entry systems while parked near the Hollywood Police Department. The problem disappeared when the cars were towed to dealerships and was blamed on everything from dead batteries to a Hollywood Police Department antenna that was rumored … [Read more...]
Nikon D800 Wireless Memory Card Issues Caused By RF Interference
Eye-Fi, the manufacturer of SD memory cards and SDHC cards with Wi-Fi, has released a solution to an issue that prevented their cards from working with the Nikon D800 and D800E. In early October, Eye-Fi confirmed a compatibility issue that impacted the use of Direct Mode in the Nikon D800. Though the two products were marketed as compatible, consumers were “unable to use … [Read more...]
FCC Urges FAA to Lift Restrictions on Portable Electronic Device Use in Flight
Federal Communications Commission Chairman Julius Genachowski has urged the FAA to lift the ban on the use of portable electronic devices during takeoff and landing in a letter addressed to FAA acting administrator Michael Huerta. “I write to urge the FAA to enable greater use of tablets, e-readers and other portable electronic devices during flight, consistent with public … [Read more...]
Light Spectrum May Be Used by Wireless Communications to Transmit Data
As wireless networking technology continues to expand and shrink the supply of available electromagnetic spectrum, researchers are working to develop solutions to locate and develop alternate solutions for data transfer. Harald Hass, a researcher at the University of Edinburgh in the United Kingdom, is currently working to enable wireless devices to utilize the spectrum of … [Read more...]
New Spread Spectrum Crystal Oscillator for EMI Reduction
Mercury United, a manufacturer of frequency control products, has released a new spread spectrum crystal oscillator (SSXO) for electromagnetic interference reduction in various electronic products. According to the company, the new oscillator is ideal for applications in printers, hand-held ID readers, medical devices, GPS navigation systems, scanners, projectors and modems. … [Read more...]
Starbucks Initiates Wireless Charging Trial Period in Boston
Starbucks has partnered with Duracell to initiate a wireless charging trial period in 17 Boston-area locations. According to Starbucks chief digital officer Adam Brotman, the company is installing Duracell’s Powermat technology into tabletops “to get a sense for how our customers will react.” Duracell’s technology utilizes an electromagnetic field to transfer energy between … [Read more...]
Shenzhen Metro Blocks 3G Signal to Investigate Subway Wireless Interference
Authorities temporarily shut down 3G service on two subway lines in Shenzhen, China in an effort to determine the cause of unexpected train stops between stations. According to Shenzhen Metro, the temporary removal of wireless services was done in order to test a theory that interference from mobile wireless networks was the cause. Almost every subway in mainland China is … [Read more...]
FCC Increases Efforts to Combat Cell Phone Jammers
The FCC increased enforcement efforts this month to prevent the marketing and sale of illegal signal jamming devices. According to the Communications Act of 1934 that bans the blocking of radio communications in public, the sale or operation of devices that jam wireless communications is prohibited. In a recent statement from the FCC, the organization reveals its concern that … [Read more...]
Unidirectional and Bidirectional ESD Diodes for LED Lighting Manufacturing
Semiconductor company ProTek Devices has released a new business line of individual unpackaged die available in wafer form for LED lighting manufacturers. The die in wafer form are available as unidirectional and bidirectional electrostatic discharge protection diodes. ProTek Devices’ new business line of die available in wafer form for LED lighting applications consists of … [Read more...]
LAN-Capable, Device-Charging Tables Demonstrated at Ceatec Electronics Show
Researchers from the University of Tokyo demonstrated tables that provide wireless charging and form local networks between devices laid on top of them at the Ceatec electronics show in Japan. The concept was developed from an idea to support wireless ad-hoc networks that are more secure and local than current Wi-Fi networks and do not require cables. The tables are created … [Read more...]
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