June 2010 - Philippines Tech News & Reviews | YizhanTech™

Archive | June, 2010

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iPhone 4's antenna issue resolved

Posted on 29 June 2010 by yizhan

The problem with the iPhone4’s antenna, loosing signal while gripping lower portion which we seldom do when we are making a call, has been a problem since the day it was released in the public. almost everybody noticed this problem.  Well Apple responded on this issue  and said.

“Gripping any mobile phone will result in some attenuation of its antenna performance, with certain places being worse than others depending on the placement of the antennas. This is a fact of life for every wireless phone. If you ever experience this on your iPhone 4, avoid gripping it in the lower left corner in a way that covers both sides of the black strip in the metal band, or simply use one of many available cases.”

I’ve read some articles from other blogs and found out that by just putting a bumper ( new product by apple for the iPhone 4) it will solve the issue of the antenna problem. The bumper is a plastic strips that wraps around the iPhone 4 and comes up with different colors that gives stylish look for your iPhone 4. The bumper cost $29.00 and only pits with the iPhone 4

MC671 MC672_AV1 MC670_AV4 MC597_AV2

As Apple mention, by avoiding to grip the lower left corner of the iPhone 4 or by just putting a protective casing,signal strength will not drop. Well in this case putting a bumper to your iPhone 4 will resolve the issue. hmm… looks like a good investment to me.

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U3-X Personal Mobility

Posted on 23 June 2010 by yizhan

Inspired by ASIMO’s balance and walking technology, Honda has build the U3-X  Personal Mobility.  A unique experience of riders and vehicles, the U3-X makes new technology in the advancement of human mobility.

image Derive from ASIMO’s technology of great balance through hard researches by Honda, it provides the U3-X ability to balance and have free movement in all directions, most likely in human walking.  It can analyze what’s the rider intention in terms direction and speed when the riders lean, either forward, backwards and sideways. Speed is then determine by the incline of the U3-X. All this can be control just by shifting your weight.

The U3-X is powered by Honda’s Omni Traction Drive System. It is the first wheelimage technology that enables to move in any direction, consist of multiple small-diameter motored controlled wheels placed in line with each other to form a large-diameter wheel.  By rotating the large wheel it enables the U3-X to move forward and backward while rotating the small-diameter wheel, allows it to move sideways and by combining the rotation of the two wheels, it enables the U3-X to move diagonally.

The body-cover of the U3-X is made of carbon fiber that acts as extra support  frame it also has a fold-able seat and foot rest that you can fold in when not in use.


Height: 25.6 in

Length 12.4 in

Width: 6.3 in

Weight: less than 22 pounds

Battery: Lithium Ion

Operation: 1 Hour

Watch the video below for some demo of the U3-X prototype.

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ASIMO The Humanoid Robot

Posted on 19 June 2010 by yizhan

Advanced Step in Innovative MObility (ASIMO), a humanoid robot that was design by HONDA. ASIMO’s technology has been evolving since 1986, and have done several stages to perfect its function. Well we all know that  mobility is the main stream of honda for their motorcycles, cars and power products.  And this gives them a new challenge in mobility to build a two legged robot the can walk and balanced by it self. The main concept of this research is to be able to build a robot that has more viable mobility to help and live in harmony with people.


Research on human walking

From  1986-1991, First stage of ASIMO’s technology was achieved.  By studying the principles of  two legged locomotion, they have achieved to make their first two legged robot that can walked (the E0 robot). It can do both slow walking and fast walking, During slow walking, the body’s center of gravity remains always centered on the soles of the feet.When body movement is used for smooth, fast walking, the center of gravity is not always on the soles of the feet.  Next step they have done is to research and analyzed the human walking, animal walking and other forms of walking to visualize movement and location of the joints, create a fast walking program and  input it to the robots for experiments. With this several experiments they have manage to achieved a fast walking robot (the E2 robot) with the speed of 1.2km per hour.

image image image

Achieving stable walking

From 1991 – 1993 Honda started the next stage of  ASIMO’s technology by achieving a stable walking.  After achieving the first stage which is the technology of fundamental walking, Honda continues its researches in developing new techniques in stabilized walking and come up with three techniques.


Three techniques in stabilized walking

These techniques were then applied with several robots and Honda’s E5 robot was the first one to perfect stable walking even on steps or sloping surface


Creating the humanoid robot

After finishing the technology of the two legged walking robot(the Experimental Models E1 – E6), Honda starts building the prototype models ( P1, P2 and P3) from 1993 – 1997  by attaching arms, body and head to the Experimental Models creating a completely independent humanoid robots.

image image

Latest  version of ASIMO is 1.2 meter tall and weighs 43 Kg. This size enables ASIMO to perform multi-task like walking, running and pushing cart .  It also has a capability to interact with gestures and has an ability to recognize objects.  It can even learn to avoid obstacles.

All images and some description from this article were gathered from ASIMO’s technical info.

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Latest From Intel®

Posted on 11 June 2010 by yizhan

When we talk of processors, Intel always comes first in to my mind.  I been using an Intel® processor since  the era of  Intel® 286 processor. I’m currently using a Intel® Core™ 2 Duo with 2.00GHz clock speed powering my NEO laptop.  Now, Intel had just released their latest processors .  Its the 2010 Intel® Core™ Processor Family. The Intel® Core™ i3, i5, i7 and i7 extreme edition.

Intel® Core™ i3 Processor


The first level of the new Intel® Core™  is the i3 processors.  Built with 2 cores and 4 threads and  has two classifications one for standard Voltage and another for Ultra-Low-Voltage processors. Click here for more details.

Intel® Core™ i5 Processor


Next is the i5.  One of its main feature is the  Intel® Turbo Boost Technology. It boost processing speed automatically when your computer needs extra speed.  i5 is also capable of  4 way multi-task processing with the Intel® Hyper-Threading Technology . it allows each core to of the processor to work on two task at the same time.  Maximized  the visual performance With i5’s Intel® HD Graphics.  Enables you to watch HD movies or play your favorite video games without the need of add-on video cards. Click here for more detail.

Intel® Core™ i7 Processor


Designed specially for multitasker and  multimedia enthusiast.  The i7 has a combination of large cache size that gives ultimate performance in multi-tasking. unlike the i5, i7 is Capable to do 8-way and 4-way  multitasking, allowing each core to work in different task at the same time. Click Here for more details.

Intel® Core™ i7 Processor Extreme Edition


Overclock enabled, with this feature you can tune your system for extra speed and performance making it the exact engine for power users who needs unparalleled performance and unlimited digital creativity. i7 features up to 12 threads for maximized performance.  Click Here for more details

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    Hard Disk, a closer look…

    Posted on 05 June 2010 by yizhan

    Ever wonder what’s inside a hard disk and how things where done in storing data in to it?   A hard disk (hard drive or HDD)  is a storage device inside a PC, notebook Pc, Laptops and many other computing device.  In History, the first hard disk was built by IBM in 1956.  Hard disk in that time was in a  large scale and was designed for a protected environment of a data center or large offices.  Before the early 80’s hard disk has a 8-14 inches platters and requires a large amount of space and was as big as a washing machine. In the early  80’s the first 5.25-inches hard disk  was introduce by Seagate Technology, the ST-506, a 5.25 inches Hard disk drive with a 5MB data storage capacity.  As hard disk technology evolves, its size became smaller and capacity increases from megabytes to gigabytes and now many hard disk manufacturer were able to up-size its capacity into terabytes.

    Interior structure of a Hard Disk

    As shown in the image above, its my old 60GB Samsung S-ATA HDD.  Labeled  above are some important parts of the hard disk.

    Parts Description:

    • Platters – A circular disk mounted in a spindle where magnetic data is stored.
    • Spindle – A spinning axle where the platters is mounted which limits the device to a single I/O  operation and making it the focus of  I/O scheduling decision.
    • Power Connector – Connected directly to the power supply of the computer  giving power to the whole operation of the hard disk.
    • S-ATA Connector – S-ATA (Serial Advance Technology Attachment) computer bus interface connecting host bus adapters to mass storage device. Same as the older ATA standard (A.K.A. EIDE) but more advance in function.
    • Actuator – Responsible for controlling the movements of the sliders and heads.
    • Actuator axis – Where the slider is mounted, it has a bearings for the accurate positioning of the head.
    • Sliders and Heads – Sliders is the one holding the heads, it position the head to where its going to read or write the magnetic data. The hard disk has to kinds of head, the read head and the write head.
    • Ribbon Cable – Connected to the main board of the hard disk, I/O data passes through here. Power connection to the actuator is also connected here.
    • Base Casting – Is where all the parts of the hard disk is mounted.

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    Samsung N220 Notebook PC

    Posted on 04 June 2010 by yizhan

    Need a notebook PC that can serve you all day long?  Well Samsung got something for you, the Samsung N220. Equipped with a 6 cell battery that last up to 12 hours, comes with a very stylish design  both in red and green with chrome design in its sidelines.

    NP-N220_feature01 NP-N220_feature03

    NP-N220_feature04 NP-N220_feature02

    Images credits to Samsung

    You  don’t have to worry  whenever you’re in a place where there is no power source, you can stay on up to 12 hours, so no problem going anywhere and do anything with your notebook.  It is equipped  with a LED display that helps in its long-lasting performance.  The N220 display is a 10.1” anti-reflective display so you can still enjoy watching your favorite movie even in a bright light.  The N220 is also equipped with an advance communication technology it includes an 802.11bgn wireless lan and a 3G modem. Both HSPA and WiMAX is supported. Another interesting feature of the Samsung N220 is the HyperSpace’s “InstantOn” , by this feature, you can immediately access the internet without waiting the windows  to boot.  You can do this when you turn on the N220 and while the system is booting, you just press F6 key to activate the HyperSpace software.

    Basic Specs:

    • Genuine Windows 7 Starter operating system
    • Intel® ATOM™ Processor N450(1.66GHz, 667MHz,512)
    • 10.1” WSVGA (1024×600), Non-Gloss, LED Back Light
    • Intel GMA 3,150 Graphic Processor
    • 1GB (DDR2 / 1GBx1) System Memory
    • 250GB (5,400rpm S-ATA) Hard Disk
    • Intel NM10 Chipset
    • HD Audio
    • Web Camera
    • 802.11bg/n Wireless LAN
    • Bluetooth 2.1 + EDR
    • 6 cell (5,900mah)

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    First Solar Powered school in the Philippines

    Posted on 03 June 2010 by yizhan

    Manila, Philippines – Sitero Francisco Memorial National high School in Barangay Ugong, Valenzuela City had just installed a 1Kw photovoltaic solar panel capable of powering nine-classroom in a building. This will be the first solar powered school in the country.

    This projects was headed by Cesar Villareal (School Principal) and Jamesone Tan (Science Department Head).  By  searching for  a good sponsor, Tan found Wanxiang Americ Corp, Universal Solar (Wanxiang Energy Division) and funded the project through the Foundation for Environmental Education (FEE).  A six solar panels, where shipped from Illinois, USA by Wanxiang America. Valenzuela’s City government handled the cargo and installations. The solar panels that where shipped cost around 500K.

    These solar panel is capable of generating 1Kw to 5Kw of electricity depends on the intensity of the sunlight. The usual setup for a solar power was applied here, means that the solar panel’s cells collect sunlight and convert them to electricity and distribute them to the class room, some excess energy that where gathered where stored to series of batteries to be used at night .

    “Once operational, the solar project will help students become more aware of their energy needs, the science behind it and other vital issues on energy utilization,” Villareal said.

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