Accession Number:

ADD018481

Title:

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

Descriptive Note:

Patent, Filed 8 Mar 94, patented 5 Sep 95,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1995-09-05

Pagination or Media Count:

33.0

Abstract:

This report describes an electronics circuit for digitizing an analog audio or like data signal into a six bit digital equivalent signal and then introducing a dither component into the digital equivalent signal. The electronics circuit includes an Erasable Programmed Read Only Memory EPROM which generates a six bit dither component to be added to the digital equivalent signal. A binary adder adds a dither bit to each of the six bits of the digital equivalent signal and then provides a three bit equivalent digital signal. The three bit equivalent digital signal is then written in parallel into a first storage register, while one bit of the three bit digital equivalent signal is written into a second storage register. When a fuze active signal, which is input to the present invention, is a logic zero the first register is enabled for a read operation allowing the three bit equivalent digital data to be read from the first register to a parallel to serial converter which converts the data to a serial three bit digital formant. When the fuze activate signal is a logic one the second register is enabled for a read operation allowing the one bit equivalent digital data to be read from the second register to the parallel to serial converter which converts the data to a serial one bit digital format.

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE