Telegraphy – Systems – Simplex-reversing periodic
Patent
1975-04-18
1976-06-08
Griffin, Robert L.
Telegraphy
Systems
Simplex-reversing periodic
178DIG9, 360 69, 325492, 178DIG11, H04N 700
Patent
active
039625320
ABSTRACT:
The disclosure relates to a selectively operable power supply for a recording system of the type which includes tuning and intermediate frequency sections for receiving and converting transmitted television signals into composite video and audio signals and a recorder for recording the composite video and audio television signals onto a recording medium. The power supply comprises a timer including a switch which is selectively operable for providing an A.C. line voltage when its contacts are closed at preselected times and a receptacle coupled to the switch and adapted to receive the power input of the recorder for powering the recorder at the preselected times and a rectifier and filter coupled to the switch for powering the tuning and intermediate frequency sections with filtered DC voltage at the preselected times.
REFERENCES:
patent: 3611151 (1971-10-01), Fernandez
patent: 3818352 (1974-06-01), Moran
patent: 3873921 (1975-03-01), Petrinec
Aubert Richard C.
Dean George R.
Ricks James B.
Wade John W.
Bell & Howell Company
Fitz-Gerald Roger M.
Gray Richard
Griffin Robert L.
Psitos Aristotelis M.
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