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 10):
A method for synchronizing a video signal rendered on a first device and an audio signal rendered on a second device, comprising:\n generating a first lip sync synchronization audio signal by embedding in the audio signal a first identifier by using an audio watermark, this first signal being transmitted together with the video signal to the first device and a second lip sync synchronization audio signal by embedding in the audio signal a second identifier by using an audio watermark, this second signal being transmitted to the first device at the same time; recording sound waves corresponding to rendering of the lip sync synchronization signals by the first device and the second device; analysing recorded sound waves to detect the embedded identifiers in the first and second first lip sync synchronization signals captured by the microphone and determine their arrival times, determining corresponding video and audio latencies based on arrival times of the embedded identifiers in the first and second lip sync synchronization signals; determining from the determined latencies the signal with smallest latency and the signal with highest latency among the audio and the video signals; and delay the signal with the smallest latency by an amount of delay by storing temporarily a subset of the signal, said amount of delay being the absolute value of the difference between the video latency and the audio latency.

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): 0.6242204260276435
- 35 USC 102 Novelty (BERT): 0.4892772445910277
- Combined Prediction Score: 0.610726107883982
- Mean Citation Score: 208.513634
- Max Citation Score: 218.8455
- Similarity Product: 156.67489884406328

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