Apparatus for modifying the time base of signals

Claim 2

Apparatus for correcting for time base instability of signals in a train thereof, comprising: a. a frequency controlled delay device; b. means for producing a clock signal having a frequency which occurs at a rate corresponding to the reciprocal of the time integral of the frequency instability of signals in said train thereof, both said reciprocal and time integral being of the same polarity; and c. means responsive to said clock signal for clocking signals in said train thereof through said frequency controlled delay device so that time base instability of signals in said train thereof is substantially eliminated.

Claim 3

The apparatus of claim 1 wherein said frequency controlled delay device comprises a charge-coupled device.

Claim 4

Apparatus for modifying the time base of signals in a train thereof, comprising: a. means for producing a phase error signal that varies as a function of phase variations in the time base of the signals in said train thereof; b. voltage variable delay means adapted to serially receive said train of signals and delay the progression of said train of signals completely therethrough in proportion to a control signal provided during said progression; c. signal means for receiving said error signal and for producing a signal of like polarity proportional to the reciprocal thereof, said reciprocal signal being said control signal; and d. means for applying said reciprocal signal to said voltage variable delay means for varying the delay of signals in said train in direct proportion to said reciprocal signal.

Claim 5

Apparatus for modifying the time base of signals in a train thereof, comprising: a. means for producing a phase error signal that varies as a function of phase variations in the time base of the signals in said train thereof; b. voltage variable delay means adapted to serially receive said train of signals and delay the progression of said train of signals completely therethrough in proportion to a control signal provided during said progression; c. signal means for receiving said error signal and for producing a signal of like polarity proportional to the reciprocal thereof, said reciprocal signal being said control signal; and d. means for applying said reciprocal signal to said voltage variable delay means for varying the delay of signals in said train in direct proportion to said reciprocal signal.

Claim 6

Apparatus for modifying the time base of signals in a train thereof, comprising: a. means for producing a variable frequency clock; b. means for producing a phase error signal that varies as a function of phase variations in the time base of the signals in said train thereof; c. means for varying the frequency of said clock in proportion to the reciprocal of said phase error signal, said reciprocal having the same polarity as said phase error signal; and d. frequency controlled delay means for receiving said train of signals, said delay means being responsive to said clock to pass said signals through said delay means at said varying clock frequency, whereby the time base of the signals in said train thereof is modified accordingly.

Claim 7

Apparatus for modifying the time base of signals in a train thereof, comprising: a. means for producing a variable frequency clock; b. means for producing a phase error signal that varies as a function of phase variations in the time base of the signals in said train thereof; c. means for varying the frequency of said clock in proportion to the reciprocal of said phase error signal, said reciprocal having the same polarity as said phase error signal; and d. frequency controlled delay means for receiving said train of signals, said delay means being responsive to said clock to pass said signals through said delay means at said varying clock frequency, whereby the time base of the signals in said train thereof is modified accordingly.

Claim 8

The apparatus of claim 4 wherein said frequency controlled delay means comprises a charge-coupled device.

Claim 9

Apparatus for removing flutter from a train of television line-representative signals, comprising: a. comparator means for comparing the phase of sync signals in said signal train with reference signals occurring at a nominal sync rate, thereby to produce a phase error signal; b. clock producing means responsive to said phase error signal for producing a clock signal having a frequency which varies reciprocally and with like polarity with respect to said phase error signal; and c. frequency controlled delay means for receiving said train of signals, said delay means being responsive to said clock producing means to clock said signals through said delay means.

Claim 10

Apparatus for removing flutter from a train of television line-representative signals, comprising: a. comparator means for comparing the phase of sync signals in said signal train with reference signals occurring at a nominal sync rate, thereby to produce a phase error signal; b. clock producing means responsive to said phase error signal for producing a clock signal having a frequency which varies reciprocally and with like polarity with respect to said phase error signal; and c. frequency controlled delay means for receiving said train of signals, said delay means being responsive to said clock producing means to clock said signals through said delay means.

Claim 11

The apparatus of claim 6 wherein said frequency controlled delay means comprises a charge-coupled device.

Claim 12

The apparatus of claim 6 wherein said comparator means comprises a phase lock loop further including a voltage controlled oscillator for providing a reference sync frequency and a phase detector adapted to compare the phase of the oscillator signal with the phase of sync signals in said train of television signals.

Claim 13

The apparatus of claim 6 wherein said clock producing means comprises: a. control means for generating a nonlinear output signal which is proportional to the reciprocal of said phase error signal; and b. voltage controlled oscillator means responsive to said nonlinear output signal for providing a clock signal having a frequency which varies directly with respect to said nonlinear output signal.

Claim 14

In combination with a video tape recorder, apparatus for removing flutter from a train of television line-representative signals played back by said recorder comprising: a. a voltage controlled oscillator for producing a reference frequency occurring at a nominal sync rate; b. phase detector means for comparing the phase of sync signals in said signal train which said reference signals and for producing a phase error signal; c. signal generator means responsive to said phase error signal for providing a nonlinear output signal of like polarity which is proportional to the reciprocal of said phase error signal; d. voltage controlled oscillator means responsive to said nonlinear output signal for generating a clock signal having a frequency which varies directly with respect to said nonlinear output signal; e. analog shift register means for processing said train of signals; and f. clock steering means for applying said clock signal to said analog shift register means, said analog shift register means being responsive to said clock signal to process said train of signals therethrough.

Claim 15

In combination with a video tape recorder, apparatus for removing flutter from a train of television line-representative signals played back by said recorder comprising: a. a voltage controlled oscillator for producing a reference frequency occurring at a nominal sync rate; b. phase detector means for comparing the phase of sync signals in said signal train which said reference signals and for producing a phase error signal; c. signal generator means responsive to said phase error signal for providing a nonlinear output signal of like polarity which is proportional to the reciprocal of said phase error signal; d. voltage controlled oscillator means responsive to said nonlinear output signal for generating a clock signal having a frequency which varies directly with respect to said nonlinear output signal; e. analog shift register means for processing said train of signals; and f. clock steering means for applying said clock signal to said analog shift register means, said analog shift register means being responsive to said clock signal to process said train of signals therethrough.

Claim 16

The apparatus of claim 10 wherein said analog shift register means comprises a charge-coupled device.