Accession Number : ADD011898

Title :   Multiplexed Data Stream Monitor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Gentry,J F

Report Date : 09 Jul 1985

Pagination or Media Count : 9

Abstract : A multiplexed data stream circuit comprises a random memory stream which is transmitted together with a synchronization signal and a data clock. A counter circuit is reset by the synchronization signal and counts the data clock signals to accumulate counts uniquely identified accumulated count location is addressed in the random access memory to read the immediately preceding data state of the current signal and the immediately preceding data stream signal as read from the random access memory are compared by gating circuitry to identify characteristics of the data stream. State changes of the signals within the multiplexed data stream are identified if the gating circuitry comprises an EXCLUSIVE OR gate. (Author)

Descriptors :   *PATENTS, *DATA TRANSMISSION SYSTEMS, ACCUMULATION, COUNTING METHODS, POSITION(LOCATION), CLOCKS, SIGNALS, DATA PROCESSING, MEMORY DEVICES, STREAMS, RANDOM ACCESS COMPUTER STORAGE, SYNCHRONIZATION(ELECTRONICS)

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE