Video recording system for reducing flicker in the skip field mode

Claim 2

A video recording system comprising a signal terminal to which an original television signal to be recorded is applied, delay means for delaying a portion of said original television signal applied to said signal terminal by an amount equal to a certain integer times a field period of each original television signal, means for producing a mixed television signal by adding a delayed television signal from said delay means to said original television signal, means for successively sampling fields from said mixed television signal, each of said samples being taken at an interval of a certain integer times one field, and means for recording the sampled television fields.

Claim 3

A video recording system according to claim 1 wherein said original television signal to be recorded is a color television signal and said delayed television signal is the one in which the color carrier signal is attenuated.

Claim 4

A video recording systEm according to claim 1 wherein the delay time of said delay means is twice a field period.

Claim 5

A video recording system comprising a signal terminal to which an original television signal to be recorded is applied, first delay means for delaying a portion of said original television signal applied to said signal terminal by an amount equal to twice a field period of said original television signal, means for adding a delayed television signal from said delay means to said original television signal to produce a mixed television signal, second delay means for delaying a portion of said mixed television signal by an amount equal to one-field period, means for alternatively and successively sampling a field from the delayed mixed television signal and from said mixed television signal, the fields to be sampled being each of one field, at an interval of two fields, and means for recording the sampled television fields.

Claim 6

A video recording system comprising a signal terminal to which an original television signal to be recorded is applied, first delay means for delaying a portion of said original television signal applied to said signal terminal by an amount equal to twice a field period of said original television signal, means for adding a delayed television signal from said delay means to said original television signal to produce a mixed television signal, second delay means for delaying a portion of said mixed television signal by an amount equal to one-field period, means for alternatively and successively sampling a field from the delayed mixed television signal and from said mixed television signal, the fields to be sampled being each of one field, at an interval of two fields, and means for recording the sampled television fields.

Claim 7

A video recording system according to claim 4 wherein the delayed television signal applied to said signal adding means is a one-field signal at an interval of three fields.

Claim 8

A video recording system according to claim 4 wherein said first delay means comprises a first recording head engaging a magnetic record medium driven to rotate at the rate of a period greater than the field period of said original television signal for recording a signal to be delayed on said magnetic record medium and a first reproducing head for reproducing a recorded locus after termination of said one-field period, and said second delay means comprises a second recording head engaging said magnetic record medium for recording a signal to be delayed, a second reproducing head for reproducing a recorded locus after termination of said one-field period, a third recording head for recording a reproduced output on said magnetic record medium and a third reproducing head for reproducing a recorded locus after termination of said one-field period.

Claim 9

A video recording system comprising a signal terminal to which a television signal to be recorded is applied, said television signal being converted from a movie picture film, first delay means for delaying a portion of said television signal applied to said signal terminal by an amount equal to twice a field period of said television signal, means for adding a delayed television signal from said delay means to said television signal to produce a mixed television signal, second delay means for delaying a portion of said mixed television signal by an amount equal to one-field period, means for successively sampling a field at a predetermined rate from an output of said first delay means, from an output of said adding means, and from an output of said second delay means, the fields to be sampled being each of one field at an interval of two fields, and means for recording the sampled television fields.

Claim 10

A video recording system comprising a signal terminal to which a television signal to be recorded is applied, said television signal being converted from a movie picture film, first delay means for delaying a portion of said television signal applied to said signal terminal by an amount equal to twice a field period of said television signal, means for adding a delayed television signal from said delay means to said television signal to produce a mixed television signal, second delay means for delaying a portion of said mixed television signal by an amount equal to one-field period, means for successively sampling a field at a predetermined rate from an output of said first delay means, from an output of said adding means, and from an output of said second delay means, the fields to be sampled being each of one field at an interval of two fields, and means for recording the sampled television fields.