Check this out:
Americans' Internet Access:
2000-2015
http://www.pewinternet.org/2015/06/26/americans-internet-access-2000-2015/?utm_content=buffer95b6e&utm_medium=social&utm_source=linkedin.com&utm_campaign=buffer
Wednesday, July 29, 2015
Lightning Connector - The iPhone Wiki
https://www.theiphonewiki.com/wiki/Lightning_Connector
Lightning is the "new" connector supported by iPhone 5 and newer, iPad mini 1G and newer, iPad 4 and newer, and iPod touch 5G. (For the old connector, see 30-pin Connector.) It was presented by Tim Cook at an Apple Special Event on September 12, 2012. According to Apple, it as an all-digital connector and "features an adaptive interface that uses only the signals that each accessory requires and also is 80% smaller as well as orientation independent."
- Lightning is adaptive.
- All 8 pins are used for signals, and all or most can be switched to be used for power.
- The outer plug shell is used as ground reference and connected to the device shell.
- At least one (probably at most two) of the pins is used for detecting what sort of plug is plugged in.
- All plugs have to contain a controller/driver chip to implement the "adaptive" thing.
- The device watches for a momentary short on all pins (by the leading edge of the plug) to detect plug insertion/removal.
- The pins on the plug are deactivated until after the plug is fully inserted, when a wake-up signal on one of the pins cues the chip inside the plug. This avoids any shorting hazard while the plug isn't inside the connector.
- The controller/driver chip tells the device what type it is, and for cases like the Lightning-to-USB cable whether a charger (that sends power) or a device (that needs power) is on the other end.
- The device can then switch the other pins between the SoC's data lines or the power circuitry, as needed in each case.
- Once everything is properly set up, the controller/driver chip gets digital signals from the SoC and converts them – via serial/parallel, ADC/DAC, differential drivers or whatever – to whatever is needed by the interface on the other end of the adapter or cable. It could even re-encode these signals to some other format to use fewer wires, gain noise-immunity or whatever, and re-decode them on the other end; it's all flexible. It could even convert to optical.
Monday, July 27, 2015
About us - Step Two
http://www.steptwo.com.au/about/
Step Two Designs is the global thought-leader on intranets. For over fifteen years, we've worked with organisations of every type to help deliver better intranets. We've published the books, reports and articles that intranet teams across the globe rely on to guide their planning and design decisions.
Step Two Designs is the global thought-leader on intranets. For over fifteen years, we've worked with organisations of every type to help deliver better intranets. We've published the books, reports and articles that intranet teams across the globe rely on to guide their planning and design decisions.
PepperSpot - OpenSource IPv4/IPv6 captive portal | Main / HomePage
http://pepperspot.sourceforge.net/
PepperSpot is a captive portal or wireless LAN access point controller which support the IPv6 protocol. It supports web based login and it supports Wireless Protected Access (WPA). Authentication is handled by your favorite radius server (over IPv4/IPv6)
Sent from my iPhone
PepperSpot is a captive portal or wireless LAN access point controller which support the IPv6 protocol. It supports web based login and it supports Wireless Protected Access (WPA). Authentication is handled by your favorite radius server (over IPv4/IPv6)
Sent from my iPhone
Sunday, July 26, 2015
Wireless node location mechanism using antenna pattern diversity to enhance accuracy of location estimates
Patent # 7,260,408 (issued August 21, 2007)
http://www.google.co.ug/patents/US7260408
Wireless node location mechanism using antenna pattern diversity to enhance accuracy of location estimates
US 7260408 B2
SUMMARY OF THE INVENTION
CROSS-REFERENCE TO RELATED APPLICATIONS FIELD OF THE INVENTION
US 7260408 B2
Abstract
A wireless node RF Fingerprinting location mechanism that uses multiple antenna patterns to enhance the accuracy of wireless node location in an RF environment. In one implementation, substantially non-overlapping antenna pattern diversity is used to provide a degree of sectorization in computing the estimated location of a wireless node.
The present invention provides methods, apparatuses and systems directed to a wireless node RF Fingerprinting location mechanism that uses multiple antenna patterns to enhance the accuracy of wireless node location in an RF environment. In one implementation, substantially non-overlapping antenna pattern diversity is used to provide a degree of sectorization in computing the estimated location of a wireless node. As discussed in more detail below, the wireless node location mechanism can be incorporated into wireless network environments, such as 802.11 networks, to estimate the location of mobile stations, rogue access points and other wireless nodes.
Description
This application makes reference to the following commonly owned U.S. patent applications and/or patents, which are incorporated herein by reference in their entirety for all purposes:
- U.S. patent application Ser. No. 10/155,938 in the name of Patrice R. Calhoun, Robert B. O'Hara, Jr. and Robert J. Friday, entitled "Method and System for Hierarchical Processing of Protocol Information in a Wireless LAN;"
- U.S. application Ser. No. 10/183,704 in the name of Robert J. Friday, Patrice R. Calhoun, Robert B. O'Hara, Jr., Alexander H. Hills and Paul F. Dietrich, and entitled "Method and System for Dynamically Assigning Channels Across Multiple Radios in a Wireless LAN;"
- U.S. patent application Ser. No. 10/407,357 in the name of Patrice R. Calhoun, Robert B. O'Hara, Jr. and Robert J. Friday, entitled "Method and System for Hierarchical Processing of Protocol Information in a Wireless LAN;"
- U.S. patent application Ser. No. 10/407,370 in the name of Patrice R. Calhoun, Robert B. O'Hara, Jr. and David A. Frascone, entitled "Wireless Network System Including Integrated Rogue Access Point Detection;"
- U.S. application Ser. No. 10/447,735 in the name of Robert B. O'Hara, Jr., Robert J. Friday, Patrice R. Calhoun, and Paul F. Dietrich and entitled "Wireless Network Infrastructure including Wireless Discovery and Communication Mechanism;" and
- U.S. application Ser. No. 10/611,522 in the name of Robert J. Friday and entitled "Non-Overlapping Antenna Pattern Diversity In Wireless Network Environments."
The present invention relates to location of wireless nodes in wireless network environments and, more particularly, to a wireless node location mechanism employing antenna pattern diversity to enhance the accuracy of estimating the location of wireless nodes.
Ken Zakreski
Wednesday, October 16, 2013
Google's Project Loon
http://en.wikipedia.org/wiki/Project_Loon
Project Loon is a research and development project being developed by Google with the mission of providing Internet access to rural and remote areas. The project uses high-altitude balloons placed in the stratosphere at an altitude of about 20 km (12 mi) to create an aerial wireless network with up to 3G-like speeds. Because of the project's seemingly outlandish mission goals, Google dubbed it "Project Loon".
Obviously, need to include this project in any SWAT analysis.
Project Loon is a research and development project being developed by Google with the mission of providing Internet access to rural and remote areas. The project uses high-altitude balloons placed in the stratosphere at an altitude of about 20 km (12 mi) to create an aerial wireless network with up to 3G-like speeds. Because of the project's seemingly outlandish mission goals, Google dubbed it "Project Loon".
Obviously, need to include this project in any SWAT analysis.
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