Shanghai AWINIC recently launched a low-power intelligent gesture recognition chip AW9136, which integrates capacitive detection technology and LED breathing lamp driving function, and has a built-in complete gesture recognition algorithm, which can realize gesture wake-up in the standby state of mobile phones And breathing light effects.
Waking up the phone, lighting the screen, or putting the phone into standby is the most frequent daily operation of the final consumer. According to statistics, a deep smartphone user can wake up the phone and light up the screen more than one hundred times a day. For ordinary Android phones, the traditional way of waking up the phone is that the user presses the power button of the phone. The disadvantage of this operation is that the position of the power button is not uniform, and it is not easy for consumers to adapt; in addition, as the size of smart phones becomes more and more The larger, the wake-up phone operation often requires one-handed movement and even two-handed cooperation, which is not in line with human usage habits. Using Aiwei AW9136 to combine gesture recognition with applications such as smart phone wake-up or entering standby mode greatly improves the convenience of handling and user experience.
"In the era of smart phones, nuclear war continues, and the main platform evolves rapidly. While striving for hardware performance, how to please consumers with distinctive differentiated designs and better user experience is a key task for mobile phone manufacturers to consider. Ding Jun, Product Manager of Shanghai Aiwei Electronic Capacitive Touch Product Line, said: "When the phone is in standby, awakening the phone with gestures is a very good function to enhance the user experience, coupled with the cool breathing light effect, It is a good selling point for counter promotions. However, to achieve gestures when the mobile phone is in standby, it is necessary to solve the power consumption problem. The existing capacitive touch chip, the power consumption of the chip itself is too large, the quiescent current may be as high as 10mA, The second is that there is no complete gesture recognition algorithm inside, and the data needs to be reported to Baseband for further judgment operations, so that continually awakening BaseBand will greatly increase the standby power consumption of the mobile phone. AW9136 integrates a complete gesture recognition algorithm, normal The power consumption during work is only 500uA; the built-in unique accurate gesture recognition technology can avoid human misoperation or misjudgment Resulting in frequent phone was awakened, so to achieve the best balance between cool gesture recognition applications and standby power consumption. "
Aiwei AW9136 can realize a variety of gesture recognition in the key area below the main screen of the smart phone, such as "double-click", "slide", "long press" and so on. This product is based on the principle of capacitive touch detection. Three induction channels are connected to the buttons of the capacitive touch screen. The buttons use ITO or FPC as the sensing surface; when the set gesture input is recognized, an interrupt request is sent to the main chip of the mobile phone. As a disruptive application experience for a new generation of smartphones, in addition to typical applications such as “double-tap†to wake up the phone and “long-press†to enter standby, users can also pair custom gestures with certain Android applications. For example, when defining the standby mode, the finger “double-tap†the HOME button as the wake-up function, “slide left†to directly enter the music playback menu, and “slide right†to open the camera function, etc., to avoid the redundant process in the traditional operation mode, and to consume Bring a better user experience.
The characteristics of AW9136 are as follows:
· Integrated with 3-way capacitive touch button function and 6-way intelligent LED breathing lamp driver
Built-in complete gesture recognition algorithm. The detection of touch events is completed by the internal fully customized DSP processor. The user can customize the sliding gesture and click according to the application requirements. The chip automatically determines the occurrence of the touch event and then generates an interrupt request.
· The 6-channel intelligent LED breathing lamp is driven by a common-yang constant current source, 1024-level PWM dimming, and the maximum driving current is 8-level adjustable. Programmable settings for breathing light effects, light effect commands can be downloaded to the internal RAM of the chip, and a dedicated breathing light effect processor (ASP) is integrated to execute user-designed commands to control LED fade-in and fade-out effects.
· The chip supports the combination of touch events and LED lighting effects. Customized "slide", "double-click" and other touch inputs can correspond to the designed breathing light effects one by one.
· Low power consumption, the chip quiescent current is 500uA
AW9136 adopts I2C interface, works under the voltage of lithium ion battery, and adopts QFN3X3-20L package. It has been mass produced. If you need to provide reference designs and samples, if you need to obtain product information and samples, please contact AWINIC market personnel Agents.
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