PATENT CLAIM ANALYSIS

Application Number: 16090268
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-04
Patent Classification: ["348", "512000"]

Abstract:
A device ( 200, 230, 250 ) and a method for synchronizing the rendering of an audio/visual signal on different devices comprising an audio rendering device ( 220, 250 ) and a video rendering device ( 210, 230 ). The method comprises a synchronization phase where a synchronization signal ( 410, 420 ) is emitted ( 310 ) on each rendering device, the synchronization signals ( 411, 421 ) are captured by a microphone ( 130 ) in the synchronization module, the difference between the captured synchronization signal is measured and determines the delay to be applied either on the audio or the video signal in order to ensure accurate “lip sync”. The delay information is provided to a demultiplexer function ( 203, 233, 253 ) of the device allowing to delay either the video or the audio signal by caching the corresponding signal in memory ( 204, 234, 254 ) in its compressed form for the duration of the delay. In the preferred embodiment, the synchronization signals are identified using audio watermarks. The device is preferably a television, a broadcast receiver or an audio-visual bar.

Claim (Index 1):
A device for synchronizing a video signal rendered on a first device and an audio signal rendered on a second device, the device receiving an audio-visual signal comprising said audio signal and said video signal to be synchronized and comprising:\n a lip sync synchronization signal generator configured to:\n generate a first lip sync synchronization audio signal by embedding in the audio signal a first identifier by using audio watermark, the first audio signal being rendered together with the video signal by the first device; and \n generate a second lip sync synchronization audio signal by embedding in the audio signal a second identifier using an audio watermark, the second audio signal being rendered by the second device; \n a microphone configured to capture sound waves corresponding to lip sync synchronization audio signals obtained by the rendering of at least the first and the second lip sync synchronization audio signals by the first device and the second device; a hardware processor configured to:\n analyse captured sound waves to detect the lip sync synchronization signals captured by the microphone and their arrival times, \n determine corresponding video and audio processing latencies based on arrival times of the captured lip sync synchronization audio signals; \n determine from the determined latencies the signal with smallest latency and the signal with highest latency among the audio and the video signals; and \n delay the signal with smallest latency among the video signal and the audio signal by storing temporarily a subset of the signal in memory; \n memory configured to store at least the subset of the signal to be delayed.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 97.0
- Lexical Diversity: 2.15625
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15911107', '10656196', '16070284', '13107942', '13107943']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6238729030633943
- 35 USC 102 Novelty (BERT): 0.4908073461756747
- Combined Prediction Score: 0.6105663473746223
- Mean Citation Score: 208.513634
- Max Citation Score: 218.8455
- Similarity Product: 153.8578977105617

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test