Test pattern generator TPG-8 is a compact, portable device with extreme usability, designed to generate test video signals based on test patterns or other static video images stored in the device memory.
TPG-8 can be used to assess resolution, dynamic range, colour rendition in video monitors, digital video recorders, digital video security, TV, cable video systems and nonlinear editing systems after digitization and compression.
Often people would use a video camera for these tasks. However, the error in this case is initially found at the positioning of the test pattern, brightness and the whole path of image processing, beginning with the lens and ending with signal transformations. A Test Generator with standard test patterns signals is a completely different matter.
TPG-8 can be used to:
S-Video, Composite, YUV and component digital SDI with integrated test audio signal:
Video signal standards:
PAL and NTSC
Digital video processing:
Custom level of output video signal:
from 0.5V to 2V, with 0.1V resolution
Loaded test patterns or static images:
Forming and loading images:
external power adapter, USB or built-in three NiMH AA type batteries (6 hours operation)
Recharging of batteries:
from USB or external power adapter
TPG-8 can use any dynamic logo 100x100 pixels with 50 frames (PAL) or 60 frames (NTSC) as a test pattern.
TPG-8 comes with a test logo in shape of a white circle divided into 25 (or 30) sectors with 50 (or 60) frames. Each sector is coloured red for even frames and black for uneven frames. When the logo is displayed, it shows a ray, which "runs" over the circle and changes colour twice within each sector. This dynamic test logo allows to estimate the frame record speed and frame display rate in digital video recorders and surveillance systems. It helps to obtain the true, correct number of lost frames in digital frame relay and encoding/decoding process.
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