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Intel IDT together so the Wireless charging comes true

Wed, 08/29/2012 - 7:54PM by HF005 0 Comments -

Intel IDT together so the Wireless charging comes true On August 30, Intel has been talking about wireless charging for a long time, we have always maintained that this was a lab concept products, in fact is not the case. Intel has Integrated Device Technology hand in hand, creating a real world available chipsets, support for Wireless charging small devices. The ultimate goal of this project is, of course, have an existing platform can be integrated into other devices, such as Super, then it can charge your phone or peripheral equipment, and cannot have any looks very decent charging pad.Currently Intel talked about this project or some earlier, until sometime in the first half of 2013, Intel may be bi-directional Wireless charging complete chipset into the hands of the hardware manufacturers, not to mention it would become a marketable product, such as when is the. But we were fairly expected, this may be the first step in truly large scale Wireless charging. This technology and what will be the benefits to our lives in the future, it is easy to foresee.



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On the misunderstanding of closed routes produced audio signal cable

Thu, 08/23/2012 - 2:05AM by HF005 0 Comments -

On the misunderstanding of closed routes produced audio signal cable

There must be more systematic knowledge of electromagnetism or many low-level errors committed. Believes that closed routes can transport up to few GHZ of AC signal, 20HZ--20KHZ audio signal must be super good. Wrong, the fact is the opposite of closed road transport mechanism is electromagnetic waves of high frequency signal transmission, is the electric field and magnetic field within a closed routes or vice versa, is not a simple relationship between voltage and current. You can do an experiment, on your television on the closed route on the terminals of a meters of closed routes, closing of short circuit on the other end of the road, your TV will still be very clear. Why is this? Look at books on electromagnetic waves. When transmitting audio signals, that then also need to use a 75 Ohm impedance 75 Ohm resistor for impedance matching. Is just ridiculous, ignorant. The 75 Ohm impedance is closed when you transfer high-frequency signal routes internal dielectric constant of medium relative to the electromagnetic field can be equivalent to a 75 Ohm resistor. This 75 ohms is determined by the plastic barrier between it and the wire, incredible, right? If the impedance mismatch occurs in the closed route reflection of electromagnetic waves forming standing waves. Strips interference is your TV ghosting persist may be the cause. This 75 ohms non-he is 75 ohms, do not believe you using a multimeter to measure barrier layer and core wire in the Middle, resistance will never be infinite. In fact closed road not suitable for transmission of audio signals. Any audio signal lines can be equivalent to a capacitor, you put at the end of your audio output shorted to ground a large capacitance do? Beautiful and slender high frequency signals are being stifled does? Large thick closed routes or the equivalent capacitance. Why do some audio signal cable barrier layer as thin network is to reduce the capacitance.Hp Compaq CQ60 Laptop CPU Fan

Reduced wire requirements, the most effective approach is to minimize the output signal source resistance. For example, some high power field effect transistor gate-source-level hundreds of skins in the equivalent capacitance between law, it can also work in the MHz frequency level. Why do we do that? Because the driving amplifier output resistance is very low.



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Samsung GALAXY SII Plus screen upgrade

Mon, 08/20/2012 - 7:31PM by HF005 0 Comments -

Samsung GALAXY SII Plus screen upgrade

Leak due to a lawsuit with Apple's two new Samsung WP8 "Odyssey" and "Marco", maybe you have a certain impression, now they have a new message. Recently, the media Sammobile not only once again announcing two new machine specifications, and it is the first time disclosed its anticipated future retail prices.

From this information from the Sammobile of data, in fact and content on the Internet does not have little access, but the more detailed functional specifications provided. Among them, for the mid market Samsung Marco model GT-i8370, relatively mediocre in the hardware configuration, load is 4 inch-inch Super AMOLED touch screen, supports a resolution of WVGA,800x480 pixels specification and uses dual-camera configuration, with 1.9 million pixels pre and built-in 5 million pixel primary camera lenses.
In terms of processor configuration, this mobile phone is equipped with a 1.5GHz Gao Tongxiao Dragon S4 dual-core processor, and support the LTE network and storage capacity with 8GB, and provides a memory card expansion capabilities. Regarding the price of mobile phones, while the midrange market, but the machine between the estimated retail price is EUR 350-450, seems more expensive.

Another code for Samsung new Odyssey machine model of GT-i8750 will be a new flagship of WP8. Landmark of the unit was mounted 4.8-inch Super AMOLED touch screen and supports HD resolution 1280x720 pixels, outside of and in addition to the built-in 8 million pixels camera, this phone more compelling place is equipped with near-field communication NFC chip, which means that the machine is able to support WP8 system brought about the Wallet Hub and "Tap+Send" and other functions. The new machine is also equipped with a 1.5GHz Gao Tongxiao Dragon S4 dual-core processor, using a dual-camera design, with 1.9 million pixel pre and 8 million pixel primary camera lenses, but also provides 16GB/32GB two storage options, and supports the memory card expansion capabilities. Mobile phone prices, between the expected retail price is EUR 500-600.

Although it is not yet clear Samsung both WP8 when publishing the new opportunities, but according to Microsoft will be available for sale reserve one-month exclusive for Nokia rumors, Samsung this two new machines until October will debut at the fastest. Nevertheless, according to the General reasoning estimates that if manufacturers to be launched at the end of the phone to the market, half a year early to begin testing mobile software compatibility is quite reasonable. Samsung WP8 is expected some time in the future maybe more information being out of new machines, interested friends may wish to tuned together.



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Win 8 final version using testimonials

Fri, 08/17/2012 - 1:57AM by HF005 0 Comments -

Win 8 final version using testimonials

According to abroad media reported, Microsoft Win 82 week Qian on has completed has, in October 26 official sale zhiqian, manufacturer and development personnel has about ten week time to prepared software and driven program, created application, manufacturing can full uses Win 8 features of device Theverge.com of edit has began tries to using Win 8 has, they believes that, although developers and manufacturer also some work to do, but is obvious, Win 8 of performance is excellent, Here's their view: in General, Win 8 final version preview difference is not too much. This may be because development has been to late, Microsoft cannot make large changes. But some of the company's adapted to Win 8 becomes smoother, faster, and more stable. We are successfully installed it on a Lenovo ThinkPad X1 on Carbon, although there are some compatibility issues, but Win 8 overall feel very stable, does not give a feeling of semi-finished products.

Win 8 Ultimate Edition one of the most obvious changes likely to be on slightly different animation, the default screen lock screen is also new. Win 8 offers a number of new backgrounds and picture, makes custom lock screen picture and start flexibility far exceeded the previous screen. Start screen just a solid color background, or very fancy. Each background patterns you can choose a background color, you can always try, find your most desired background. We've long heard Win 8 to evict Aero Glass effects, but we tried every version still has its shadow. However Win 8 Chinese no longer have Aero Glass effects, new desktop UI is better than we expected. It is more simple, more Metro style, while making people feel very familiar. Microsoft has said that Win 8 one of the goals is becoming flat, cancel the reflection, clear gradient effect of distracting, leaving it with Aero Glass to achieve that goal would greatly help. If you want to see some additional changes on desktop Win 8, you can better respond to keyboard and mouse use, then you will be disappointed, because in this context, almost almost final version and preview.

In addition to providing a good start off the screen, the UI's capacity is primarily about application. Win 8 eco-system will succeed or fail, is still hard to say, but the Windows Store had opened, developers can now submit and sell your billing software. We Win 8 and its application and development of unique UI how great interest, we'll soon see. Microsoft will continue to tweak its core Win 8 application, like Bing, Travel, People and Smart Glass. They currently have no significant changes, but see them in the same Metro style subtle variants is also the eyes wide open in these applications seems both familiar and different, overall, this is a good omen to win 8 ecosystems. Many applications are still labeled "Preview" words, Microsoft representatives cautioned that, after the Win 8 launch, Microsoft will continue to update these applications.

Added is an important feature of Windows new Win 8 to Go: you can use u disk run Win 8, turn any computer with a USB interface into Win 8 devices. We attempted on a number of different devices for this system, its performance is very good, just in case you cannot use the Windows Store. We're still waiting for: drive still needs improvement. Since the Win 8 development cycle has been completed, why do we still have to wait until October 26 it? Because Microsoft OEM very clearly there is much work to be done. These companies want to create driver, developers need to be tested to ensure their compatibility, manufacturers need to identify their hardware support, the best way to Win 8. In addition, if the Windows Store want to achieve a good start, it also needs to provide more and better applications. No such preparations, running directly on the Lenovo ThinkPad X1 Carbon I win 8 effect is desired. After I installed the Win 8, touch pad no longer supports multi-touch gestures, even right-no, it's light punctuation jumping jumping on the screen, even the computer sleep/wake program is gone. These are Lenovo and other manufacturers of things to fix in the next two months. So now you'd better wait.



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MK802-II Android 4 mini computers overview

Thu, 08/16/2012 - 1:46AM by HF005 0 Comments -

MK802-II Android 4 mini computers overview

MK802 is a mini computer, runs Android, Ubuntu or another operating system, sells for $ 70, you can take it and connect the keyboard, mouse and video. Dapper figure and feature low power consumption and low prices attracted a lot of sentiment for it. Now the new MK802 II started shipping, and it has more USB interface and a built-in HDMI interface, you can put it directly into the TV or on the monitor, without the need for additional cables. It United Kingdom price is about 70 pounds, you can spend $ 77 purchased on the w2Comp.

Is the same as MK802, MK802 II carrying a Allwinner A10 ARM was Cortex-A8 single core processors, Mali 400 video card, 4GB storage space. It comes pre-loaded with Android 4, Samsung Charger you can access Google Play store. MK802 II is also equipped with 1GB of memory, microSDHC card slot, supports 802.11b/g/n WiFi. MK802 has a full size USB port, a mini USB port, a mini HDMI port, and MK802 II has a full-size USB port, two mini USB ports, a full size HDMI interface.

MK802 II circuit board has also been redesigned and has a built-in power regulator, which lets you more easily overclocked, reduced frequency, and properly shut down the device. If you've ever tried to close the original MK802, you will know it points of presence in these issues. It also comes with a number of cables and converters, such as full-size USB cable to the mini USB port converter. Overall, the MK802 II MK802 the difference is small, its processor is still slower, lower power consumption, limited storage space, but this is not necessarily a bad thing.

MK802 popular in part because, a series of operating systems based on Linux, such as Ubuntu and Fedora in the pick-up Allwinner A10 processor running on the device. MK802 II also has the same advantages, you can start it with a microSD card. Just need to Ubuntu or other operating system loaded on the SD card, and after opening the device and make sure it's plugged into the card slot. To go back to the Android system, you just need to unplug, eject SD card, then plug in the power, and then restart the Android.

MK802-II Android 4 Mini battery charger information matching computers overview, please visit:http://www.2shopping.co.uk



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MK802-II Android 4 mini computers overview

Thu, 08/16/2012 - 1:46AM by HF005 0 Comments -

MK802-II Android 4 mini computers overview

MK802 is a mini computer, runs Android, Ubuntu or another operating system, sells for $ 70, you can take it and connect the keyboard, mouse and video. Dapper figure and feature low power consumption and low prices attracted a lot of sentiment for it. Now the new MK802 II started shipping, and it has more USB interface and a built-in HDMI interface, you can put it directly into the TV or on the monitor, without the need for additional cables. It United Kingdom price is about 70 pounds, you can spend $ 77 purchased on the w2Comp.

Is the same as MK802, MK802 II carrying a Allwinner A10 ARM was Cortex-A8 single core processors, Mali 400 video card, 4GB storage space. It comes pre-loaded with Android 4, Samsung Charger you can access Google Play store. MK802 II is also equipped with 1GB of memory, microSDHC card slot, supports 802.11b/g/n WiFi. MK802 has a full size USB port, a mini USB port, a mini HDMI port, and MK802 II has a full-size USB port, two mini USB ports, a full size HDMI interface.

MK802 II circuit board has also been redesigned and has a built-in power regulator, which lets you more easily overclocked, reduced frequency, and properly shut down the device. If you've ever tried to close the original MK802, you will know it points of presence in these issues. It also comes with a number of cables and converters, such as full-size USB cable to the mini USB port converter. Overall, the MK802 II MK802 the difference is small, its processor is still slower, lower power consumption, limited storage space, but this is not necessarily a bad thing.

MK802 popular in part because, a series of operating systems based on Linux, such as Ubuntu and Fedora in the pick-up Allwinner A10 processor running on the device. MK802 II also has the same advantages, you can start it with a microSD card. Just need to Ubuntu or other operating system loaded on the SD card, and after opening the device and make sure it's plugged into the card slot. To go back to the Android system, you just need to unplug, eject SD card, then plug in the power, and then restart the Android.

MK802-II Android 4 Mini battery charger information matching computers overview, please visit:http://www.2shopping.co.uk



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What HTC One x panic

Mon, 08/13/2012 - 7:53PM by HF005 0 Comments -

What HTC One x panic

HTC x is One one machine, if you panic, can't remove battery, what should we do? Not nervous, camera hard reset method:

Long press HTC One x power button for ten seconds, eject shuts down reset button to ignore in the Middle, the normal system below the keyboard lights flash, prompting press shut down restart. a phone black screen reboot. If you want to enter bootloader mode, in black screen press and hold the volume down.

HTC One x is a 4.7-inch touch screen, with the S-LCD touch screen material at a resolution of 1280*720 pixels, relatively large viewing angle, high color reproduction than. Body thickness is 9.29mm.
HTC x-mount One NVIDIA launches quad-core Tegra3 processor. The processor feature is the use of a variable symmetric multicore processor with NVIDIA proprietary technology vSMP, main features is to have four primary core and a coprocessor. System pick-up is Android HTC One x 4 operating system, equipped with the latest HTC Sense 4 interface. Its characteristics are not only is introducing a new control interface, but also in an e-mail message, guest mode and integrated DropBox brings new content.
HTC dual-camera One x, camera of 1.3 million and 8 million pixels respectively before and after, and using a BSI sensor, with F2.2 ultra large apertures and dual LED fill light, even under poor light conditions can get good photo results. HTC One x also supports auto-focus and 1080p Full HD video recording.
HTC One GPS navigation feature x supported, while also supporting the A-GPS network-aided navigation, digital compass, distance sensors, light sensors, gyroscopes, and NFC capabilities.

Next we will introduce Gateway M-6315 Laptop CPU Fan installation method



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What is the mobile phone chargers

Fri, 08/10/2012 - 7:54PM by HF005 0 Comments -

What is the mobile phone chargers

All the mobile phone charger is a stable power supply with the necessary flow, voltage, constant current control circuits, such as limited. Original charger (linear charger) output parameter by tagging on: for example, o 4.4V/1A, o 5.9V/400mA ... ... Means that internal regulated power supply-related parameters. Aware of this fact, you will know a cell phone charger is easy to become a regulated power supply good quality! Such as output 4.4V can 4.5V equipment, 5.9V can give 6V devices.

Function
1, good quality of lithium-ion batteries and nickel-metal hydride battery charger be recognized, and thus decided to charge mode. Lithium-ion battery protection circuit board has a characteristic information of IC store lithium batteries, it seats fully to recognize lithium battery on the one hand, to determine the current and constant voltage charging mode; the other hand also makes the phone able to recognize lithium-ion batteries, to determine how the discharge.

2, Ni-MH battery charging current. Are not afraid to charge the Ni-MH battery itself, when the nickel-metal hydride battery overcharge will have the reverse reaction, to prevent excessive voltage rise, this reaction is slightly heat the battery. In addition, the Ni-MH batteries typically add a thermistor to prevent battery overcharging. At present, most of the mobile phone about work voltage 3.6V, core-needs three nickel-metal hydride batteries. General core-Ni-MH battery overcharge to about 1.4~1.5V stop, three batteries maximum voltage of about 4.4V.Hp Compaq CQ60 Laptop CPU Fan 

3, due to the lithium battery overcharge risk occurs, set conditions for charging and discharging than nickel-cadmium batteries and nickel-metal hydride batteries are demanding. Lithium-ion batteries are usually attached within a control circuit board in order to prevent overcharge. Design based on characteristics of lithium-ion batteries, charge is based on the first paragraph of "current" charge, wait until the fast enough and to between about 4.1~4.2V battery charging way reach optimum state. Charger on the market are simply recognition into cell phone batteries are nickel-metal hydride batteries, and "current" charged, tend to cause excessive charging of lithium batteries. Quality protection circuit boards are lithium-ion battery protection in order to prevent the Chargers continue to charge. If the poor design of circuit board would not only fail to protect the battery, resulting in excessive battery charging, also can be caused due to excessive charging battery fried core deformation, leakage, storms, and so on.

4, filled mostly with fast charge, usually in the 3-4 was full of hours. When the charger when charging is complete is displayed, even if they do not remove the battery from the charger, have only a very weak power into the battery.

5, nickel-metal hydride battery memory effect and are unlikely, does not need often discharge, lithium battery discharge is not necessary. Chargers sold on the market, annexed to its discharge device of variable quality. Poor quality of discharge phenomenon, easily give rise to corrosion of anode plates inside the battery, thereby reducing the battery life and normally available capacity. In this case, every discharge before recharging the battery spoils faster. Normally, just put a battery power to turn off automatically after charging, is the best on the battery discharge processing methods.
Maintenance

1, cleaning electrostatic discharge. Regularly clean the charger and charging interface. When cleaning, use a damp cloth, or an antistatic cloth. Never use a dry cloth!

2, waterproof. As the electronic product, accidentally into the water or when not exposed to moisture in the air for a long time, for its internal electronic components result in varying degrees of corrosion or oxidation.

3, drop resistance and shock absorption. Mobile phone charger is in fact part of a fragile, vulnerable to beat the internal components. In particular, to prevent accidentally landed in use. Do not drop, knock, or shake the charger. Charger for rough handling can break internal circuit boards

4, prevention of cold heat. Do not put the charger in a high temperature place. High temperatures can shorten the life of electronic devices, damaging charger, allowing some warp or melt plastics. Do not store the battery charger also in cold areas. When the charger while you are working in a cold environment, when internal temperature, moisture can form inside the charger, and damage electronic circuit boards.

5, prevention of harsh chemicals. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the charger. Clears the Chargers scrub a small amount of anhydrous alcohol level on the appearance of stains on cotton.



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Is Lithium-ion the Ideal Battery

Fri, 08/10/2012 - 12:19AM by HF005 0 Comments -

Is Lithium-ion the Ideal Battery?

For many years, nickel-cadmium had been the only suitable battery for portable equipment from wireless communications to mobile computing. Nickel-metal-hydride and lithium-ion emerged In the early 1990s, fighting nose-to-nose to gain customer's acceptance. Today, lithium-ion is the fastest growing and most promising battery chemistry.
The lithium-ion battery

Pioneer work with the lithium battery began in 1912 under G.N. Lewis but it was not until the early 1970s when the first non-rechargeable lithium batteries became commercially available. lithium is the lightest of all metals, has the greatest electrochemical potential and provides the largest energy density for weight.

Attempts to develop rechargeable lithium batteries failed due to safety problems. Because of the inherent instability of lithium metal, especially during charging, research shifted to a non-metallic lithium battery using lithium ions. Although slightly lower in energy density than lithium metal, lithium-ion is safe, provided certain precautions are met when charging and discharging. In 1991, the Sony Charger Corporation commercialized the first lithium-ion battery. Other manufacturers followed suit.

The energy density of lithium-ion is typically twice that of the standard nickel-cadmium. There is potential for higher energy densities. The load characteristics are reasonably good and behave similarly to nickel-cadmium in terms of discharge. The high cell voltage of 3.6 volts allows battery pack designs with only one cell. Most of today's mobile phones run on a single cell. A nickel-based pack would require three 1.2-volt cells connected in series.

Lithium-ion is a low maintenance battery, an advantage that most other chemistries cannot claim. There is no memory and no scheduled cycling is required to prolong the battery's life. In addition, the self-discharge is less than half compared to nickel-cadmium, making lithium-ion well suited for modern fuel gauge applications. lithium-ion cells cause little harm when disposed.

Despite its overall advantages, lithium-ion has its drawbacks. It is fragile and requires a protection circuit to maintain safe operation. Built into each pack, the protection circuit limits the peak voltage of each cell during charge and prevents the cell voltage from dropping too low on discharge. In addition, the cell temperature is monitored to prevent temperature extremes. The maximum charge and discharge current on most packs are is limited to between 1C and 2C. With these precautions in place, the possibility of metallic lithium plating occurring due to overcharge is virtually eliminated.

Aging is a concern with most lithium-ion batteries and many manufacturers remain silent about this issue. Some capacity deterioration is noticeable after one year, whether the battery is in use or not. The battery frequently fails after two or three years. It should be noted that other chemistries also have age-related degenerative effects. This is especially true for nickel-metal-hydride if exposed to high ambient temperatures. At the same time, lithium-ion packs are known to have served for five years in some applications.

Manufacturers are constantly improving lithium-ion. New and enhanced chemical combinations are introduced every six months or so. With such rapid progress, it is difficult to assess how well the revised battery will age.

Storage in a cool place slows the aging process of lithium-ion (and other chemistries). Manufacturers recommend storage temperatures of 15°C (59°F). In addition, the battery should be partially charged during storage. The manufacturer recommends a 40% charge.

The most economical lithium-ion battery in terms of cost-to-energy ratio is the cylindrical 18650 (size is 18mm x 65.2mm). This cell is used for mobile computing and other applications that do not demand ultra-thin geometry. If a slim pack is required, the prismatic lithium-ion cell is the best choice. These cells come at a higher cost in terms of stored energy.
Advantages.

Lower energy density and decreased cycle count compared to lithium-ion.
Expensive to manufacture.
No standard sizes. Most cells are produced for high volume consumer markets.
Higher cost-to-energy ratio than lithium-ion
Restrictions on lithium content for air travel

Air travelers ask the question, "How much lithium in a battery am I allowed to bring on board?" We differentiate between two battery types: Lithium metal and lithium-ion.
Most lithium metal batteries are non-rechargeable and are used in film cameras. Lithium-ion packs are rechargeable and power laptops, cellular phones and camcorders. Both battery types, including spare packs, are allowed as carry-on but cannot exceed the following lithium content:
- 2 grams for lithium metal or lithium alloy batteries
- 8 grams for lithium-ion batteries

Lithium-ion batteries exceeding 8 grams but no more than 25 grams may be carried in carry-on baggage if individually protected to prevent short circuits and are limited to two spare batteries per person.

How do I know the lithium content of a lithium-ion battery? From a theoretical perspective, there is no metallic lithium in a typical lithium-ion battery. There is, however, equivalent lithium content that must be considered. For a lithium-ion cell, this is calculated at 0.3 times the rated capacity (in ampere-hours).

Example: A 2Ah 18650 Li-ion cell has 0.6 grams of lithium content. On a typical 60 Wh laptop battery with 8 cells (4 in series and 2 in parallel), this adds up to 4.8g. To stay under the 8-gram UN limit, the largest battery you can bring is 96 Wh. This pack could include 2.2Ah cells in a 12 cells arrangement (4s3p). If the 2.4Ah cell were used instead, the pack would need to be limited to 9 cells (3s3p).
Restrictions on shipment of lithium-ion batteries

Anyone shipping lithium-ion batteries in bulk is responsible to meet transportation regulations. This applies to domestic and international shipments by land, sea and air.

Lithium-ion cells whose equivalent lithium content exceeds 1.5 grams or 8 grams per battery pack must be shipped as "Class 9 miscellaneous hazardous material." Cell capacity and the number of cells in a pack determine the lithium content.

Exception is given to packs that contain less than 8 grams of lithium content. If, however, a shipment contains more than 24 lithium cells or 12 lithium-ion battery packs, special markings and shipping documents will be required. Each package must be marked that it contains lithium batteries.

All lithium-ion batteries must be tested in accordance with specifications detailed in UN 3090 regardless of lithium content (UN manual of Tests and Criteria, Part III, subsection 38.3). This precaution safeguards against the shipment of flawed batteries.

Cells & batteries must be separated to prevent short-circuiting and packaged in strong boxes.



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Sennheiser HD450-13II Beautiful voice

Wed, 08/08/2012 - 12:05AM by HF005 0 Comments -

This is when they just start listening

 


Looks like after 5 minutes

Sennheiser HD450-13II Beautiful voice.


HD450-13II R600