Magnetic video recording and reproducing apparatus

Claim 2

A magnetic recording and reproducing apparatus, comprising: first magnetic head means; means transporting a magnetic tape at a predetermined speed past said first magnetic head means; means rotating said first magnetic head means in a first direction relative to the direction of movement of said magnetic tape in a plane substantially perpendicular to the direction of movement of said tape, said first magnetic head means contacting said magnetic tape through a locus of points having a predetermined angle with respect to said substantially perpendicular plane; first and second control signal magnetic head means and first and second audio signal head means disposed in operative engagement with respective edge portions of said magnetic tape; and means for selectively recording one of two recording patterns on said magnetic tape, said patterns being mirror images of each other, said selective recording means including means reversing the relative directions of movement of said magnetic tape and said first magnetic head means and means selecting between said first and second control signal head means and between said first and second audio signal head means, depending upon the relative direction of movement of said tape and first magnetic head means.

Claim 3

Apparatus according to claim 1, further comprising: recording head means for recording line patterns on said tape; reproducing head means for reproducing the recorded line patterns from said tape; means connected to said recording head means for recording a signal field onto said tape, said signal field having a field strength less than that required to record a signal on a master tape and greater than that required to record a signal on a slave tape having a lower coercivity than said master tape; detecting means connected to the output of said reproducing head means for detecting the strength of the signal field reproduced by said reproducing head means; and means connecting the output of said detecting means to said selective recording means and said reversing means, said selective recording means and reversing means being activated as a function of the strength of the signal field detected by said detecting means.

Claim 4

The apparatus according to claim 1, further comprising: recording head means for recording line patterns on said tape; reproducing head means for reproducing the recorded line patterns from said tape; first adjusting means to adjust the field strength of said line patterns being recorded on said tape; and second adjusting means connected to said first adjusting means for concurrently adjusting the field strength of signals applied to said tape by said first magnetic head means, said control signal magnetic head means and said audio signal magnetic head means.

Claim 5

A magnetic video recording and reproducing apparatus, comprising: first magnetic head means; means selectively transporting a magnetic tape at a predetermined speed past said first magnetic head means in one of first and second directions, respectively; means rotating said first maGnetic head means in a plane substantially perpendicular to the direction of movement of said tape, said first magnetic head means contacting said magnetic tape through a locus of points having a predetermined angle with respect to said substantially perpendicular plane; first and second control signal magnetic head means symmetrically disposed with respect to the plane of rotation of said first magnetic head means and in operative engagement with respective edge portions of said magnetic tape; first and second audio signal magnetic head means symmetrically disposed with respect to the plane of rotation of said first magnetic head means and in operative engagement with respective edge portions of said magnetic tape; and means to selectively record one of two recording patterns on said magnetic tape, said patterns being mirror images of each other, including means for reversing the direction of movement of said magnetic tape and means selecting between said first and second control signal head means and between said first and second audio signal head means depending upon the selected direction of movement of said magnetic tape.

Claim 6

A magnetic video recording and reproducing apparatus, comprising: first magnetic head means; means selectively transporting a magnetic tape at a predetermined speed past said first magnetic head means in one of first and second directions, respectively; means rotating said first maGnetic head means in a plane substantially perpendicular to the direction of movement of said tape, said first magnetic head means contacting said magnetic tape through a locus of points having a predetermined angle with respect to said substantially perpendicular plane; first and second control signal magnetic head means symmetrically disposed with respect to the plane of rotation of said first magnetic head means and in operative engagement with respective edge portions of said magnetic tape; first and second audio signal magnetic head means symmetrically disposed with respect to the plane of rotation of said first magnetic head means and in operative engagement with respective edge portions of said magnetic tape; and means to selectively record one of two recording patterns on said magnetic tape, said patterns being mirror images of each other, including means for reversing the direction of movement of said magnetic tape and means selecting between said first and second control signal head means and between said first and second audio signal head means depending upon the selected direction of movement of said magnetic tape.

Claim 7

Apparatus according to claim 4, further comprising: recording head means for recording line patterns on said tape; reproducing head means for reproducing the recorded line patterns from said tape; means connected to said recording head means for recording a signal field onto said tape, said signal field having a field strength less than that required to record a signal on a master tape and greater than that required to record a signal on a slave tape having a lower coercivity than said master tape; detecting means connected to the output of said reproducing head means for detecting the strength of the signal field reproduced by said reproducing head means; and means connecting the output of said detecting means to said selective recording means and said reversing means, said selective recording means and reversing means being activated as a function of the strength of the signal field detected by said detecting means.

Claim 8

A magnetic video and reproducing apparatus, comprising: first magnetic head means; means transporting a magnetic tape at a predetermined speed past said first magnetic head means; means selectively rotating said first magnetic head means in one of first and second directions relative to the direction of movement of said magnetic tape in a plane substantially perpendicular to the direction of movement of said tape, said first magnetic head means contacting said magnetic tape through a locus of points having a predetermined angle with respect to said substantially perpendicular plane; a first head group, including first control signal magnetic head means and audio signal head means; a second head group, including second control signal magnetic head means and second audio signal head means; said first and second head groups being symmetrically disposed with respect to the longitudinal axis of said tape and in operative engagement with respective edge portions of said tape; and means to selectively record one of two recording patterns on said magnetic tape, said patterns being mirror images of each other, including means for reversing the direction of rotation of said first magnetic head means and means selecting between said first and second head groups depending upon the selected direction of rotation of said first magnetic head means.

Claim 9

A magnetic video and reproducing apparatus, comprising: first magnetic head means; means transporting a magnetic tape at a predetermined speed past said first magnetic head means; means selectively rotating said first magnetic head means in one of first and second directions relative to the direction of movement of said magnetic tape in a plane substantially perpendicular to the direction of movement of said tape, said first magnetic head means contacting said magnetic tape through a locus of points having a predetermined angle with respect to said substantially perpendicular plane; a first head group, including first control signal magnetic head means and audio signal head means; a second head group, including second control signal magnetic head means and second audio signal head means; said first and second head groups being symmetrically disposed with respect to the longitudinal axis of said tape and in operative engagement with respective edge portions of said tape; and means to selectively record one of two recording patterns on said magnetic tape, said patterns being mirror images of each other, including means for reversing the direction of rotation of said first magnetic head means and means selecting between said first and second head groups depending upon the selected direction of rotation of said first magnetic head means.

Claim 10

Apparatus according to claim 6, further comprising: recording head means for recording line patterns on said tape; reproducing head means for reproducing the recorded line patterns from said tape; means connected to said recording head means for recording a signal field onto said tape, said signal field having a field strength less than that required to record a signal on a master tape and greater than that required to record a signal on a slave tape having a lower coercivity than said master tape; DETECTING means connected to the output of said reproducing head means for detecting the strength of the signal field reproduced by said reproducing head means; and means connecting the output of said detecting means to said selective recording means and said reversing means, said selective recording means and reversing means being activated as a function of the strength of the signal field detected by said detecting means.