The key to the development of touch technology and wireless communication technology in smart phones

In the mobile phone market, after the launch of the Apple iPhone product, the hardware specifications of the device were redefined. The touch and wireless Internet applications have become essential functions, and the human-machine interface design with exquisite humanity has caused the follow-up of mobile phone product planning. In fact, such as touch screen, multi-touch and human-machine interface concept, has been in the mobile phone design for a long time, however, in the iPhone launched with android follow-up, let consumers re-recognize these technologies Convenience...

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Recently, the major changes in mobile phones have been dominated by the system platform of smart mobile phones. The focus of the market is mostly on smart mobile phones, but the touch technology, mobile computing, and communication technologies integrated by smart mobile phones. It has also become a key focus of the revision of the feature phone. It has been continuously upgraded from the selection of components and solutions, and the mobile phone experience has been continuously improved, and even the feature phone can have an operating experience close to or comparable to that of a smart mobile phone.

System platform competition tends to become hot

The system platform battle that ignited the fuses by smart mobile phones was the most competitive year in 2009. Not only did the Apple iPhone platform quickly seize the dominance of the smart phone market, but Google dominated Android with an open platform perspective. Platforms, in HTC, Samsung and successor more and more hardware companies threatened to join and launch new products, has formed a strong pressure on Apple, forming a closed platform and open platform market competition.

At the same time of these two competitions, Microsoft Windows Mobile, Symbian and other system platforms that operate smart phones for a long time seem to be in a weak marginal role, trying to gain successful experience from the Apple iPhone or Android competition platform. For example, Microsoft is in the process of integrating online software stores into the Windows Mobile system, but how practical is it? Whether it can create sales booms like Apple iPhone and Android remains to be seen.

Observing why the iPhone or Android mobile phone will quickly pop up is because the iPhone integrates convenient wireless network technology and software installation and acquisition platform, allowing users to integrate on their mobile phones, such as Web browsing and Social Networking. Services such as IM, and the rich Game title is also the key to getting people's hearts. As for Android, in addition to the open platform, mobile phone manufacturers drastically reduce the cost of the operating system, Android's full integration of Google online services is also the key to a large number of Windows Mobile platform hardware developers have turned to resources to develop Android mobile phones.

Capacitive touch technology

According to survey research firm iSuppli, the market demand for multi-touch panels will grow from more than 100 million US dollars in 2007, and is expected to grow to more than 400 million US dollars in 2012. The compound annual growth rate is over 30%! The key point is that the launch of the Apple iPhone will push the touch technology application to the peak, which will bring a new look to the mobile phone human-machine interface that has been used for a long time.

Observing the current screen touch technology on the table, resistive touch is one of the most popular touch solutions in the market, but early resistive touch has technical limitations on transparency and touch sensitivity. Even so, the resistor The narrow cost advantage of touch is still quite common in high-end touch-integrated smart phones and high-end feature phones. In contrast, capacitive touch, early technology can't overcome environmental factors, and new technologies are constantly being introduced. Capacitive touch panels have the opportunity to compete with resistive touch, but the key "cost" issues still affect The willingness to introduce capacitive touch panels in new designs.

Capacitive touch panel technology, as early as 1990, IBM and Logitech proposed the concept of multi-touch. Although multi-touch is not the first of the Apple iPhone, at least Apple is the first to introduce and integrate humanized interface design. The mobile phone operation can be completed with the help of a finger, without the need for touch-based stylus or external device assistance, so that the action application of the action of the electro-optical painting is more effective, and the industry has introduced a capacitive touch panel design boom.

GPS navigation becomes a high-end mobile phone initial application

In all kinds of high-end smart mobile phones, the GPS integrated design can be found in the specification surface. Through the integration of GPS components, the mobile phone can also have the purpose of PND personal navigation application, but the GPS navigation application has been developed. Slightly slower, because in addition to 2D, 3D navigation, its development is limited, it can be said that derivative services such as TMC, such as traffic assistance systems, and some have manufacturers share the market.

Recently, the most popular LBS and AR applications are designed to connect to the GPS integrated network, construct a more sophisticated LBS (Location-Base Service), and even integrate Augmented Reality to augment the real-world applications, and these value-added applications need not only The GPS component provides positioning information, and the software requires an electronic compass, MEMS components, and a stronger image processor to create a more real-time, fast interactive experience.

Wi-Fi mobile phone positioning has great potential

Even though GPS positioning technology is already a very popular application, almost a necessary component of medium and high-end mobile phones, in fact, GPS still encounters untenable dilemma under the eaves, basement, and indoors, which relatively restricts the current hot spots. LBS and AR applications, although there are already manufacturers to enhance through simulation or software, but after all, their positioning accuracy is still quite different.

Wi-Fi technology can be said to be a more popular wireless technology than GPS. Although its technology aims to transmit data, it can actually be derived from multiple applications. However, Wi-Fi positioning must have environmental support in order to have application benefits. For example, the preset Wi-Fi AP location in the indoor environment is not changed at will, or the building directly sets up an AP device specially designed for positioning purposes. For example, Wi-Fi positioning system developer Skyhook has launched WPS (Wi-Fi Positioning System) technology, which uses Wi-Fi to cross the wall and signal strength difference, and multi-AP estimates the true position of the handheld device user indoors. It is used to extend the LBS to the Mobile Location-Base Service for its application.

Low-power access network design

In the case of more and more computing components and integrated components, the key to achieving the basic application requirements that do not affect the mobile phone is how to reduce the overall power consumption, and with the various energy-saving design methods, it will not affect the action. The normal transportation of the phone. At present, the popular iPhone and Android mobile phone platforms are similar to Linux (iPhone is a simplified version of Mac OS X). How to provide energy-saving design under the Linux architecture has become the key to the cost and experience of the product.

From a system perspective, in the low-power design requirements, key issues such as PCU controls, clock gating, power conversion control, etc. must be considered in the hardware components, as well as processor operation, power mode, and sleep. Management, shutdown and other power usage modes require a corresponding design. In addition to the deeper understanding of hardware components, the control design of the software on the system side is also the key to whether the Internet access function can stably provide services.

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