In a report published by Reuters on January 9, it was revealed that following its acquisition of Harman International, Samsung has launched its first set of self-driving automotive components and an in-vehicle infotainment system. At the 2018 Consumer Electronics Show (CES), the company introduced a car security camera system powered by machine learning and augmented reality technology. This system includes features like collision alerts, lane departure warnings, and adaptive cruise control, showcasing Samsung's growing presence in the automotive tech space.
The automotive industry is evolving rapidly, and the development of autonomous driving technology is accelerating. In March 2017, Samsung made a major move by acquiring Harman International for $8 billion (approximately 52.21 billion yuan), marking its official entry into the automotive component market. Since then, the company has been heavily investing in research and development to create innovative solutions for smart vehicles.
At the same CES event, Samsung also showcased its DigitalCockpit technology, which offers an advanced in-vehicle interaction experience. This platform allows seamless smartphone integration and provides personalized services for drivers—regardless of whether they are the vehicle’s owner. It represents a step forward in making the driving experience more intuitive and connected.
In September 2017, Samsung announced a significant investment of $300 million (around 1.96 billion yuan) dedicated to the development of autonomous driving technologies. This move underscores the company's long-term vision to become a key player in the future of mobility and smart transportation. With continued innovation and strategic partnerships, Samsung is positioning itself as a major force in the evolving automotive landscape.
Digital Amplifier Module​
The Digital Amplifier Module is a crucial component in the field of audio, delivering exceptional audio amplification for various audio devices. Leveraging digital signal processing technology, it enables precise manipulation of audio signals, achieving performance enhancements that are difficult to match with traditional analog Power Amplifiers.​
Working Principle​
The operation of the Digital Amplifier Module is highly sophisticated. First, upon receiving an analog audio signal, the module rapidly converts it into a digital signal through an Analog-to-Digital Converter (ADC). These digital signals then undergo a series of meticulous processes in the Digital Signal Processor (DSP), such as filtering, equalization, and reverb, to optimize the sound quality. Subsequently, the processed digital signals are converted back into analog signals by a Digital-to-Analog Converter (DAC), and finally, power-amplified by the output stage amplifier to drive the speaker to produce sound. For instance, in a common Class-D amplifier, the power output transistors operate in a switching state, controlling the power output by adjusting the duty cycle of a fixed-frequency rectangular pulse, which significantly improves efficiency.​
Product Advantages​
.High Efficiency and Energy Conservation：Compared with traditional analog power amplifiers, digital amplifier modules are extremely efficient, generally reaching over 90%. Take a certain digital power amplifier module as an example; when outputting the same power, its energy consumption is only about half that of a traditional analog power amplifier, greatly reducing energy consumption. This makes it especially suitable for devices with strict power consumption requirements.​
.High-Fidelity Sound Quality：With advanced digital signal processing technology, it can precisely process audio signals, effectively reducing signal distortion and restoring the original details of the audio, thus providing a high-fidelity auditory experience. In professional music recording and playback equipment, digital amplifier modules can accurately reproduce every note of the music, making the audience feel as if they were at the live performance.​
.Compact Size and Lightweight：Thanks to the digital design and highly integrated chip technology, digital amplifier modules have been significantly reduced in size and weight. This feature has led to their extensive application in portable audio devices, such as Bluetooth speakers and headphone amplifiers, making them convenient for users to carry.​
Application Scenarios​
.Home Audio Systems：It can be used to build home theaters and Hi-Fi audio systems, providing users with an immersive music and movie sound experience. Whether enjoying the thrilling sound effects of a blockbuster movie or listening to beautiful music, digital amplifier modules can deliver excellent audio performance.​
.Car Audio：In the limited interior space of a car, where high power is required, digital amplifier modules can effectively enhance the sound quality of car audio systems with their high efficiency and compact size, creating a high-quality auditory environment for drivers and passengers.​
.Professional Audio Fields：In places like recording studios and performance stages, where extremely high requirements are placed on the sound quality and stability of audio equipment, the high-fidelity and reliability of digital amplifier modules make them an ideal choice for professional audio devices, meeting the stringent audio quality standards of professionals.​
In conclusion, with its unique advantages, the Digital Amplifier Module plays a vital role in the audio field, offering high-quality audio amplification solutions for audio enthusiasts and professionals alike, and continuously driving the development and innovation of audio technology.
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