Amplifiers – Output networks – Transformer coupled
Reexamination Certificate
2011-01-18
2011-01-18
Pascal, Robert (Department: 2817)
Amplifiers
Output networks
Transformer coupled
Reexamination Certificate
active
07872529
ABSTRACT:
In accordance with one the present disclosure, systems and methods are disclosed that include transmitting a binary signal from a signal source into a switch where the switch is in series between the signal source and a first circuit element. In addition, the switch is operating substantially in a switched mode and creates a switched output signal and the switch is controlled by the binary signal. Also disclosed in this method is detecting a negative voltage in a signal from a second circuit element. In this method the first circuit element is in series between the second circuit element and the switch, and upon detecting the negative voltage from the second circuit element the first circuit element creates high impedance in the first circuit element.
REFERENCES:
patent: 3742330 (1973-06-01), Hodges et al.
Herbert L. Krauss, et al., “Solid State Radio Engineering”, 1980, 5 pages.
McCutcheon Robert D.
Nguyen Khiem D
Nortel Networks Limited
Pascal Robert
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