Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1978-07-28
1979-10-09
Murray, Richard
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
H04N 318
Patent
active
041707842
ABSTRACT:
A circuit for enhancing the operation of a first voltage supply magnetically coupled to and derived from a second voltage supply. A signal source indicative of the voltage developed by the first supply is coupled to a detector. The detector operates to selectively couple a switchable momentary load across the second supply in response to outputs of the first supply below a desired value. The momentary load causes an additional incremental current to flow through an inductive element in the second supply and results in greater voltage induced in a winding of the first supply that is magnetically coupled to the inductive element.
REFERENCES:
patent: 4112465 (1978-09-01), Willis
patent: 4127875 (1978-11-01), Fernsler et al.
Use of SCR defloction system to achieve power line isolation; Dietz, IEEE Transactions on Consumer Elecronics; vol. CE-22, No. 2, pp. 119-125, May. 76.
Baker Scott H.
Manners David E.
GTE Sylvania Incorporated
Murray Richard
Odozynski John A.
Psitos Aristotelis M.
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