Automatic glass-to-glass video and A/V sync test tool
US8957972B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2013 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | May 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method and tool that performs glass-to-glass testing of a test AV system. The test AV system may be a transmitter device that senses AV stimuli and transmits an AV signal to a receiver device that displays video and provides an audio out/speaker of the audio. A light source and a sound source may be placed at the transmitter device. A light sensor and microphone/direct audio out connection may be placed at the receiver device. The automatic test tool may cycle synchronized light/sound stimuli to the transmitter device and measure the delay/latency times for audio, video, and AV synchronization at the receiver device. The automatic test tool may be comprised of a computer running user interface/test management software connected to a low cost FPGA that controls the video/sound sources and sensors to accurately measure both video and audio glass-to-glass latency/synchronization in a continuous, automatic, and self-calibrating manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.