Zobrazeno 1 - 10
of 13
pro vyhledávání: '"H. A. Affel"'
Publikováno v:
Bell System Technical Journal. 11:197-212
A new submarine cable has recently been laid between Key West and Havana in order to furnish more telephone facilities between the United States and Cuba. The cable has a single central conductor with concentric tape return and employs the newly deve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ebb8b4819f041d6142fb34861de86a3
https://doi.org/10.1002/j.1538-7305.1932.tb03120.x
https://doi.org/10.1002/j.1538-7305.1932.tb03120.x
Publikováno v:
Bell System Technical Journal. 7:564-629
Two previous papers before the American Institute of Electrical Engineers discussed the activities of the Bell System in the development of multiplex telephone and telegraph systems using carrier current methods. The present paper describes developme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bb4e868a735ab086bde808b44a6abc6
https://doi.org/10.1002/j.1538-7305.1928.tb01237.x
https://doi.org/10.1002/j.1538-7305.1928.tb01237.x
Autor:
H. A. Affel, J. T. O'Leary
Publikováno v:
Transactions of the American Institute of Electrical Engineers. :504-513
This paper describes briefly a testing technique which has been developed for making line measurements at high frequencies in connection with the application of carrier telephone and telegraph systems in the Bell System. The measurement of line atten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0b9d2facec18451b5c2222bf191f254
https://doi.org/10.1109/t-aiee.1927.5061383
https://doi.org/10.1109/t-aiee.1927.5061383
Publikováno v:
Bell System Technical Journal. 13:285-300
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4b391c2383da53b187fccecc019ed8b
https://doi.org/10.1002/j.1538-7305.1934.tb00664.x
https://doi.org/10.1002/j.1538-7305.1934.tb00664.x
Autor:
H. A. Affel, B. W. Kendall
Publikováno v:
Bell System Technical Journal. 18:119-142
A new carrier telephone system is described, together with its application in the long distance telephone plant. By its use, an open-wire pair which already furnishes one voice circuit and three carrier circuits may have twelve more telephone circuit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6d437e7d5c3e9436f0f06ea491beadd
https://doi.org/10.1002/j.1538-7305.1939.tb00809.x
https://doi.org/10.1002/j.1538-7305.1939.tb00809.x
Autor:
H. A. Affel
Publikováno v:
Bell System Technical Journal. 16:487-492
IN utilizing the broad frequency ranges which the newer carrier systems can transmit the telephone engineer has a problem of choice in band width per channel to be allotted to speech currents. A sufficient width is vital to faithful speech reproducti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86534375d45d73ed49a3e012a272043c
https://doi.org/10.1002/j.1538-7305.1937.tb00764.x
https://doi.org/10.1002/j.1538-7305.1937.tb00764.x
Publikováno v:
Journal of the A.I.E.E.. 47:868-872
A previous Institute paper in 1921 gave a very complete resume of the activities of the Bell System at that time in the development of multiplex telephone and telegraph systems using carrier-current methods. A new type of carrier telegraph system was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67a5507265d3852da9ba6703b1f3f984
https://doi.org/10.1109/jaiee.1928.6536810
https://doi.org/10.1109/jaiee.1928.6536810
Publikováno v:
Electrical Engineering. 51:332-335
Three carrier telephone circuits and one telegraph circuit are provided by this newest cable linking the United States with Cuba. The design is such that still more carrier channels may be provided when the need for them arises.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7ce65f6345159dc890a7cfc3753fa62
https://doi.org/10.1109/ee.1932.6429804
https://doi.org/10.1109/ee.1932.6429804
Autor:
H. A. Affel, B. W. Kendall
Publikováno v:
Transactions of the American Institute of Electrical Engineers. 58:351-360
A new carrier telephone system is described, together with its application in the long-distance telephone plant. By its use, an open-wire pair which already furnishes one voice circuit and three carrier circuits may have 12 more telephone circuits ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a03803a242b2b27e3c54eb96f3eb98f1
https://doi.org/10.1109/t-aiee.1939.5057972
https://doi.org/10.1109/t-aiee.1939.5057972
Publikováno v:
Transactions, American Geophysical Union. 12:32
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2444f5dc902732de1383224f5961f170
https://doi.org/10.1029/tr012i001p00032
https://doi.org/10.1029/tr012i001p00032