Baidu Files Patent Application for ML-based Audio Synthesis Ownership

By catching the attention and likes of Tencent and Huawei, Baidu has topped as the leading artificial intelligence (AI) Patent Application leader. Apart from this, Baidu (with 1,237 patent applications) is also leading in the highly competitive area of intelligent driving, as many reports stated.

Victor Liang, Vice President & General Counsel Executive Assistant to CEO at Baidu, said that they retained the top position for AI-related patent applications in China because of their:

  • Constant investment and research in developing AI
  • Strategic focus on patents

After years of research and development, Baidu has now developed a comprehensive AI ecosystem, and therefore, is at the leading spot of the AI industry worldwide.

Patents focused and filed by Baidu encompass a wide range of domains, including:

  • Deep learning (1,429 patents)
  • Speech recognition (933 patents)
  • NLP – Natural Language Processing (938 patents)

While Baidu acquired top position in China, its R&D center located in the US had filed patent applications in the US patent office also.

In this patent US20190355347A1, which is for a computer-implemented method to train a neural network model for spectrogram inversion with the title – Spectrogram to waveform synthesis using convolutional networks, Baidu lists the following points:

  • Inputting an input spectrogram, including many frequency channels into a CNN (convolution neural network).
  • Outputting a synthesized waveform from CNN for the input spectrogram, which has a corresponding ground truth waveform.
  • Using the synthesized waveform, the corresponding ground truth waveform, and the loss function, consisting of at least one or more loss components opted from convergence loss spectral.
  • Using the loss to update the CNN.
  • A clear mention of using the CNNs (convolutional neural networks).

As CNN is the lifeblood of several contemporary ML-based applications, any claim, even on a small part, can create damages in the long run.

The current year has witnessed a sudden and rapid growth of interest in owning algorithms and deep learning. So, even if the plans are to protect the researches from falling prey to pseudo players, this trial appears as a slippery slope where owners of big businesses can leverage the smaller companies that are using advanced technology.

In Baidu’s case, too, there lie risks of losing ownership to various audio processing applications. Contributed to the increasing fear among the ML community, Baidu is a Chinese company. The Artificial Intelligence (AI) vision of this company was fortified with projects such as Apollo, which is an open-source independent driving platform together with many other intelligent driving innovations.

China has allegedly been found involved in Intellectual Property (IP) thefts, especially from US companies. Hence, when Baidu’s foreign division files a patent application, one cannot assist but think about the consequences of handing the ownership to China that continued to be the world’s leading source of fake goods, exhibiting its failure to take crucial action to restrain the widespread manufacture, sale, and export of bogus goods. For more visit:

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