Analogue-to-digital converters
Номер патента: GB1492894A
Опубликовано: 23-11-1977
Автор(ы):
Принадлежит: International Business Machines Corp
Опубликовано: 23-11-1977
Автор(ы):
Принадлежит: International Business Machines Corp
Реферат: 1492894 Analogue-to-digital conversion INTERNATIONAL BUSINESS MACHINES CORP 30 April 1975 [28 Aug 1974] 17909/75 Heading H3H In analogue-to-digital conversion, an analogue input current is applied on line 201 to differently biased Josephson junction devices G3, G2, G 1, G0 gated in turn at t 0 , t 1 , t 2 , t 3 , each producing an output bit, which if a 1 causes an appropriately weighted subtraction current to be applied to line 207 to modify the switching thresholds of the lower-order Josephson devices. The subtraction current is formed by switching groups of Josephson devices S2, Sl, S0, the current being proportional to the number of devices switched. The output is taken via further Josephson devices D3, D2, Dl, D0, resistors 215 &c. prevent reflection of switching transients.
Gain controlled analogue to digital converter for a computer tomograph
Номер патента: EP1087531A2. Автор: Josef Dr. c/o Philips Corp. Lauter,Stefan Dr. c/o Philips Corp. Schneider,Herfried Dr. c/o Philips Corp. Wieczorek. Владелец: Philips Corporate Intellectual Property GmbH. Дата публикации: 2001-03-28.