INCJ, Intel back Trigence in digital audio
Trigence has developed Dnote, a digital modulation technology that makes it possible to power speaker coils with a digital signal.
Several audio and in-vehicle audio manufacturers and chip companies have already adopted Dnote, INCJ said, despite the fact that, to date, Trigence has focused on R&D. One of those is Clarion Co. Ltd. which have used Dnote in the ZP1 solar-powered wireless speaker. The latest funding will be used to develop next-generation ICs that allow further miniaturization and greater power output and to strengthen its management structure ahead of international expansion.
Traditional audio systems use a digital-to-analog converter to convert source signal from digital recordings such as CDs into analog signals and then power amplifiers to energize a coil to move the diaphragm of a speaker.
Avoiding the use of DACs and power amplifies with Dnote reduces energy consumption and saves space, INCJ said. The technology is suitable for mobile devices such as smartphones and tablet computers where the market for wireless speakers and headphones is growing rapidly and Trigence can extend battery life. Similarly, there are high expectations for Dnote for in-vehicle audio equipment and Dnote also shows promise for high-quality music streaming services.
The company was founded in 2006 by Akira Yasuda, who serves as president and CEO; Jun-ichi Okamura, CTO; and Yuichiro Takahashi, patent attorney and professor at Keio University.
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