According to recent reports from foreign media, three major smartphone component suppliers told Reuters that most Android devices will not be able to match the 3D sensing capabilities of Apple's FaceID technology until 2019. This highlights a significant technological gap between Apple and its competitors in the realm of facial recognition.
Over the past decade, the race for market dominance among smartphone manufacturers has largely revolved around introducing innovative features. Apple, with its substantial R&D investment, has often set the pace, pushing other companies to catch up. For example, when the iPhone 5S was released in September 2013, it introduced a fingerprint sensor in the home button. Samsung, Apple’s main rival in the premium segment, didn’t launch a similar feature on the Galaxy S5 until April 2014. Other brands soon followed suit.
Now, 3D sensing technology is expected to play a key role in the next generation of smartphones. It allows for precise facial recognition and enhances user experiences through immersive shopping and gaming. Gartner predicts that by 2021, 40% of global smartphone sales will include 3D cameras to support augmented reality (AR) applications. According to Jon Erensen, a Gartner analyst, "3D sensing is crucial for AR, and I don’t think major phone makers are lagging behind in this area."
However, suppliers like Viavi Solutions, Finisar, and AmsAG say that key component bottlenecks will delay widespread adoption of 3D sensing in smartphones until next year. This means that after the release of the iPhone X, companies like Huawei and Xiaomi may not be able to launch phones with 3D sensing capabilities for nearly two more years.
One of the main challenges for Android manufacturers is obtaining vertical-cavity surface-emitting lasers (VCSELs), a critical component of Apple’s FaceID system. Bill Ong, senior director of investor relations at Viavi, noted that Android makers need time to secure reliable supply chains. "We may be able to provide 3D sensors to a second handset maker by the end of this year, but output will likely be low," he said. "By 2019, at least two or three Android manufacturers will start using this technology."
Ong declined to name specific companies planning to launch 3D facial recognition in 2018 but confirmed that talks are ongoing with all major smartphone manufacturers. While some Android phones, like the Asus ZenFone AR, have had 3D sensing capabilities, they haven't used facial recognition like the iPhone X. So far, Apple, Huawei, Xiaomi, and Samsung have not responded to these reports.
Gartner’s Allenson added, "Apple has always focused on supply chain control. When it comes to new technologies, Apple tends to act aggressively, ensuring early adoption and differentiation from competitors."
Multi Channel Amplifiers
Multi-channel amplifiers build on the advanced foundation of digital amplifier modules, taking audio amplification to new heights by enabling the simultaneous processing and amplification of multiple audio signals. These amplifiers are designed to meet the complex audio demands of modern applications, offering enhanced flexibility and superior sound quality.​
Multi-channel amplifiers are specialized audio devices designed to drive multiple speakers or speaker systems simultaneously, delivering precise control over sound distribution in complex setups. They are widely used in home theaters, professional audio installations, automotive systems, and commercial venues, offering flexibility and scalability for diverse audio needs.
Working Principle:​
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At the core, multi-channel amplifiers utilize multiple digital signal processing (DSP) paths, each corresponding to a separate audio channel. Similar to digital amplifier modules, the incoming analog audio signals for each channel are first converted to digital format by individual Analog-to-Digital Converters (ADCs). Subsequently, the DSPs for each channel perform dedicated operations such as independent filtering, precise equalization tailored to specific audio sources, and customized reverb settings. After the digital processing, Digital-to-Analog Converters (DACs) transform the signals back to analog, and the output stage amplifiers power the corresponding speakers for each channel. This independent processing for every channel ensures that each audio stream maintains its integrity and clarity, even in complex multi-source setups. For example, in a 5.1 surround sound system, the multi-channel amplifier can handle the distinct audio information for the left, right, center, left surround, right surround, and subwoofer channels with precision, creating a rich and immersive soundscape.
Advantages:
Multi-channel amplifiers are essential for creating immersive, balanced audio environments, combining technical versatility with user-friendly design for both professional and consumer applications. ​
Enhanced Audio Separation and Immersion：By providing individual amplification for each channel, multi-channel amplifiers achieve unparalleled audio separation. This allows for a more accurate placement of sound elements in the audio field, creating a highly immersive listening experience.  ​
Flexible Configuration and Scalability：These amplifiers offer great flexibility in configuration. Users can easily adjust the settings for each channel, such as volume, tone, and balance, according to their specific needs. Moreover, many multi-channel amplifiers support modular designs, enabling seamless expansion. Â
Efficient Power Management：Leveraging the energy-efficient technologies of digital amplifier modules, multi-channel amplifiers optimize power usage across all channels. Even when handling multiple audio streams simultaneously, they maintain high efficiency, reducing energy consumption and heat generation.
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