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This invention is used to correct the horizontal alignment for projectors using the VGA output.
Sony Electronics, Inc.
English (United States)
This text was extracted from a Microsoft Word document.
At least one non-text object (such as an image or picture) has been suppressed.
100% of the total text.
Raster shifter for VGA output
This invention is used to correct
the horizontal alignment for projectors using the VGA output.
Description of the Invention:
Problem: Customers who bought the HD100 Set top
box and were using projectors had a SYNC problem with the video. The video was skewed and there was no
Countermeasure: The invention is a network or Inductors
and capacitors. What is does is
delay the sync pulse on pin 13 on the VGA cable. Pins 1-12, 14, and 15 are all tied together. Attached is a schematic and data on
delays obtained by the device.
this device utilized a digital method, it would be the preferred method,
but would incorporate external power to drive the circuitry. This device is the passive method.
the values of components to increase delay.