Multiplex communications – Wide area network – Packet switching
Patent
1979-09-11
1982-04-20
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 691, H04J 105
Patent
active
043262880
ABSTRACT:
A method for digital frequency conversion of audio signals or PCM signals into signals of a frequency-division multiplex system in which the original signals exist in a channel of limited band width. All channels are brought into their desired frequency ranges through simplified multiplication processes, using a basic operating rate having a frequency of six times the channel band width.
REFERENCES:
patent: 3882279 (1975-05-01), Duval et al.
patent: 3912870 (1975-10-01), Roy
patent: 3919671 (1975-11-01), Fettweis et al.
patent: 3965300 (1976-06-01), Markl
patent: 3967099 (1976-06-01), Fettweis
patent: 4011905 (1977-12-01), Fettweis
"Proceedings IEE," vol. 117, No. 8, Aug. 1977, pp. 1585-1590.
"A New Method for Frequency-Division Multiplexing . . . " by Thrasher IBM Journal, Mar. 1965, pp. 137-139.
"Techniques for the Digital Interfacing of TDM-FDM Systems," by Tomlinson et al., Proceedings of the Institution of Electrical Engineers Electronics," vol. 123, No. 12, Dec. 1976, pp. 1285-1292.
"Proceedings IEEE Inter. Conf. on Communications," Chicago, Ill. Jun. 1977, pp. 195-199.
"IEEE Trans. on Communication Technology", vol. Com-19, No. 1, Feb. 1971, pp. 63-71.
Olms Douglas W.
Siemens Aktiengesellschaft
LandOfFree
Method and apparatus for frequency division multiplex system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for frequency division multiplex system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for frequency division multiplex system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1266303