Accession Number:

ADD018465

Title:

Digital Circuit for the Introduction of Dither into an Analog Circuit.

Descriptive Note:

Patent, Filed 25 Apr 94, patented 23 Apr 96,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

1996-04-23

Pagination or Media Count:

25.0

Abstract:

An electronics circuit for accurately digitizing an analog audio, video or like data signal into a fourteen bit digital equivalent signalwords having thirteen data bits and a sign bit and then introducing a dither component into the digital equivalent signal. A Read Only Memory which generates an eight bit dither component to be added to a selected eight bits of each fourteen bit digital equivalent sample. The combination of an automatic gain control circuit and a data selector circuit is provided which selects eight of the thirteen data bits of each sample to supply to a binary adder which adds the dither component to each sample. The eight selected bits of each thirteen bit data sample provide optimum video, audio or like information for the sample. A binary adder is also provided to add the dither component to each bit sample before providing the resultant signal to a missiles telemetry system.

Subject Categories:

  • Cybernetics
  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE