Patents by Inventor Kristopher KJOERLING

Kristopher KJOERLING has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Audio decoder utilizing sample rate conversion for audio and video frame synchronization
    Patent number: 9911434
    Abstract: An audio processing system (100) accepts an audio bitstream having one of a plurality of predefined audio frame rates. The system comprises a front-end component (110), which receives a variable number of quantized spectral components, corresponding to one audio frame in any of the predefined audio frame rates, and performs an inverse quantization according to predetermined, frequency-dependent quantization levels. The front-end component may be agnostic of the audio frame rate. The audio processing system further comprises a frequency-domain processing stage (120) and a sample rate converter (130), which provide a reconstructed audio signal sampled at a target sampling frequency independent of the audio frame rate. By its frame-rate adaptability, the system can be configured to operate frame-synchronously in parallel with a video processing system that accepts plural video frame rates.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: March 6, 2018
    Assignee: Dolby International AB
    Inventors: Heiko Purnhagen, Kristopher Kjoerling, Alexander Groeschel, Jens Popp, Karl Jonas Roeden
  • AUDIO ENCODER AND DECODER
    Publication number: 20160055864
    Abstract: An audio processing system (100) accepts an audio bitstream having one of a plurality of predefined audio frame rates. The system comprises a front-end component (110), which receives a variable number of quantized spectral components, corresponding to one audio frame in any of the predefined audio frame rates, and performs an inverse quantization according to predetermined, frequency-dependent quantization levels. The front-end component may be agnostic of the audio frame rate. The audio processing system further comprises a frequency-domain processing stage (120) and a sample rate converter (130), which provide a reconstructed audio signal sampled at a target sampling frequency independent of the audio frame rate. By its frame-rate adaptability, the system can be configured to operate frame-synchronously in parallel with a video processing system that accepts plural video frame rates.
    Type: Application
    Filed: April 4, 2014
    Publication date: February 25, 2016
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Heiko PURNHAGEN, Kristopher KJOERLING, Alexander GROESCHEL, Jens POPP, Karl Jonas ROEDEN