Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1980-02-01
1983-07-05
Faber, Alan
Facsimile and static presentation processing
Facsimile
Recording apparatus
358320, 358 17, 358150, 375112, 360 91, 360 371, 360 32, 360 331, 360 362, H04N 576
Patent
active
043921590
ABSTRACT:
A method and apparatus is disclosed for recording and reproducing color television signals on a magnetic media such as magnetic tape, wherein the signals recorded on and reproduced from the magnetic media are in a digital domain. The apparatus utilizes a rotating head wheel having a plurality of transducing heads spaced around its circumference which operate to record and reproduce the digital data transmitted through two separate channels at a very high data rate. The analog color television signal is converted to digital signals in a manner whereby the horizontal blanking interval is compressed and digital synchronizing information is inserted in the compressed horizontal blanking interval for every line. The portion of the real time horizontal blanking interval for which recording is not performed enables time base correction to be accomplished on an individual line by line basis. The digital television signal is processed through memory during recording to enable recording of the data on two channels at a slower than real time rate. During reproducing, the data is again processed through memory and is converted back to real time rate and then converted to an analog signal to which typical synchronizing signals are added.
REFERENCES:
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Television, The Journal of the Royal TV Society, Bol. 17, 1979, Heft 12, 5.7-10.
Lemoine Maurice G.
Pasdera Leonard A.
Ampex Corporation
Faber Alan
Greer Roger D.
Talcott Joel D.
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