Multiplexer and demultiplexer, particularly for information tran

Details Multiplexer and demultiplexer, particularly for information tran Multiplexer and demultiplexer, particularly for information tran

1990-10-12

1992-02-25

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 99, 370 84, H04J 306

Patent

active

050919075

ABSTRACT:
Information transmission networks with a synchronous hierarchy of digital signals, require that digital signals of the plesiochronous hierarchy are to be inserted into multiplex elements with prescribed pulse frames. The pulse frame is structured word by word, but a larger or smaller number of bits must be stuffed in a bitwise manner at the end of specific words. A multiplexer for the resolution of such a pulse frame and elimination of the stuffing bits are provided. The multiplexer operates in a word-by-word manner and repeats the replaced bits of the digital signal at the starting bits of the next word. In a similar manner, the demultiplexer also operates word by word and eliminates the stuffing bits contained in a word, by overwriting them in an elastic memory during writing-in of the next word. In both cases, this is achieved by a controllable shift of memory addresses.

REFERENCES:
patent: 4224473 (1980-09-01), Kaul et al.
patent: 4545052 (1985-10-01), Steierman
patent: 4807221 (1989-02-01), Stummer
patent: 4827475 (1989-05-01), Grover et al.
patent: 4920547 (1990-04-01), Murakami
CCITT Recommendations G.707, G.708, & G.709.
"Die Neve Synchrone Digitale Hierarchie, " W. Ehrlich and K. Eberspacher, NTx Bd. 41(1988), Heft 10, pp. 570-574.
"Synchrones Optisches Netz-Ein Flexibles Netzkonzept fur die 9034 Jahre", R. Wentzel, PKI Tech. MITTI/1989, pp. 7-16.
"Positiv-Null-Negativ-Stopftechnik fur die Multiplex-ubertragung Plesioshroner Datensignale", V. F. Kuhne and K. Lang, FREQUENZ 32 (1978) 10, pp. 281-287.

Affiliated with

Also associated with

Rating

Multiplexer and demultiplexer, particularly for information tran does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiplexer and demultiplexer, particularly for information tran, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiplexer and demultiplexer, particularly for information tran will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1898138