vertical blanking interval

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vertical blanking interval

The part of an analog TV signal that was sent between each video frame. In the North American TV (NTSC) signal, the vertical blanking interval (VBI) was the last 45 lines of each 525-line frame. Its purpose was to allow the CRT time to reposition its electron beam from the bottom of the current frame (screen) to the top of the next one. This non-viewable part of the signal was also used to transmit closed-caption content. See digital blanking interval, datacasting, V-chip, ATV Forum and vertical sync.
References in periodicals archive ?
For example, if a webcast producer receives a report of viewer buffering, he can consult the VBI QoS interface for answers and reach out directly to the viewer, if necessary.
Diaz-Mitoma will oversee clinical development initiatives at VBI, originally called Variation Biotechnologies, the company he co-founded in 2001.
failing to adequately address risks associated with the decision for the VBI Fund to make 3 investments into Artefact between 6 July to 30 October 2012;
The SciVac F-4 relates to a merger transaction under which a wholly owned subsidiary of SciVac would merge with and into VBI, with VBI surviving the merger as a wholly owned subsidiary of SciVac at which time SciVac would change its name to VBI Vaccines Inc.
With our partners, we seek to develop a next generation of vaccines and biologies with improved stability characteristics that allow for consistently safe and effective administration in both established and emerging markets," said Jeff Baxter, president and chief executive officer, VBI.
The sensitivities, specificities, positive predictive values (PPV) and negative predictive values (NPV) of VR and VBI were calculated.
It was reported on Tuesday that the collaboration is aimed at using VBI Vaccines' lipid particle vaccine formulation technology to advance the development of a major Sanofi Pasteur vaccine candidate.
This report is built using data and information sourced from Global Markets Direct's proprietary databases, VBI Vaccines's corporate website, SEC filings, investor presentations and featured press releases, both from VBI Vaccines and industry-specific third party sources, put together by Global Markets Direct's team.
Some studies have reported that the most common finding in VBI is the unilateral vestibular paresis to caloric testing (19).
Methodology: Retrospectively searched patients with the diagnosis of VBI in the in-patient database of the First Affiliated Hospital of Soochow University, China from January 1997 to December 2007.