TH11958B - Magnetic recording / regeneration equipment and method for controlling the angle of rotation of the spindle in magnetic recording / regeneration equipment. - Google Patents

Abstract

The encapsulation is detected from each group of the re-magnetized FM video signal, and any change in the shape of the shield over one period. Microcomputer control In the event that the cladding shape is smoothed, the smoothness indicates that the tilt of the spindle is properly set and the sweeping position of the magnetic head at Stick on the spindle will correspond to the line created on the magnetic tape. In this case, the newly created image will not be Disturbance occurs Therefore, the number of incremental / decremental transitions in the cladding shape is examined. Catch by shape value In case the contour value is high, the spindle tilt angle is changed significantly and Repeat until shape value decreases, vice versa, in case of shape value is low. Axis tilt angle Rotation is slightly changed and repeated until the cladding shape is smooth. So any interference will not occur in the newly created image. Regardless of whether the device is recording and creating new templates, templates Iron will be used for internal exchange regeneration or manual recording / reconstruction.

Claims (6)

1.Magnetic recording and duplicating device Where Rotating head to scan magnets in a circular shape. And can read the signal duplicate off the magnetic tape. Where the top has a rotating magnetic head mounted Trajectory change angle of inclination To change the angle of inclination of the cylinder, rotating according to the magnetic tape to change the scanning direction of the rotating head according to the magnetic tape. Measuring path in a loop To measure the loop of the signal, it is repeated at the specified intervals read by a rotating head. Where its scanning direction is changed by the way of Change the angle of inclination Way of dividing time To divide a given period into a number of shorter intervals. To compile the loop measured by the loop measurement path through every short interval obtained from the interval method to obtain a certain sum. Paths for measuring changes in the shape of the circle. To measure the degree of change - transform of the measured shape By means of measuring the cycle according to the total value obtained from the method of integration The way of judging the change of the cycle To judge Level of change measured Yes, by means of a high or low cycle deformation measurement method The way of generating control signals To create a macro-search signal In the event of Judging by the trajectory of the deformation of the circle, The degree of change measured by the route Measure the deformation of the cycle as high. And will generate a micro-search signal In the event of Judging by the loop deformation pathway, the degree of change is low. Tilt control path To control the trajectory of changing the angle of inclination to create the degree of transition That can be measured by means of the circular deformation measurement method By changing the angle of inclination of the rotating cylinder Cycle according to the macro-search signal Generated by means of generating control signals or reducing Change to a minimum By changing the slight tilt angle of the barrel revolving according to the signal Micro-search, generated by the control signal generation and signal processing pathways To process the repeat signal Where the degree of change Of the shape of the circle is minimal By the way, change the angle of inclination under the control of the tilt control trajectory. 2. Magnetic recording and reproducing devices as described in Clause 1 where the method Judging the deformation of the cycle consists of Way of judging the low degree of change To judge if the degree of change is low in The case for the level of the cycle indicates no change, the monotone increases, the monotone decreases or decreases after the increase and the high transition level decision path. To judge that the degree of change is high in If the level of the repeating cycle increases and decreases 3.How to control the tilt angle of the rotary cylinder Where the top has a head that revolves around the scanning tape. A circular magnet is mounted. Where there are steps of Creating a loop at specified intervals from a repeating signal read by magnetic tape. With a head that can turn around Divide the intervals as defined into a number of shorter intervals. Combine the cycles of each short interval to obtain a certain sum. Measurement of the degree of change in the contours of the loop based on the combined values. Judging whether the degree of change is high or low The change in the angle of inclination is great for the rotating barrel. Until the level Change of the shape of the low cycle In the event that it is judged that High degree of replacement Slight change in the tilt angle of the revolving barrel. Until the level The change of the shape of the loop is minimal. In the event that it is judged that The level of transitions is low, and signal processing reproduces from where its cycles at the level of deformation have. Minimal was created 4. Methods outlined in Clause 3, where the process of determining the degree of Change high or low Consists of the steps of Judging that the degree of replacement is low In case the cycle level does not show a transition, the monotone increases, the monotone decreases. Or decrease after the increase and judging that the degree of change is high. In the case when the level of the repeating cycle increases and decreases 5. Means as set out in Clause 3, where it follows the procedure for Repeating signal level measurement From the point where its cycles with the degree of transition Minimal contours are created and magnetic tape motion speed control. To amplify the signal level, repeat as much as possible to process the reproduction signal. The level of it is most likely in the process of Compound the signal. Repeat 6.How to control the tilt angle of the rotary cylinder Where at the top there will be a head that revolves around the scanning tape A circular magnet is mounted. Where it consists of a process of deciding whether the magnetic tape's sliding speed has been changed to speed In the sliding of the magnetic tape at a specific period Judging that a particular angle of inclination of the revolving cylinder fits in Is the magnetic tape's scrolling speed known at any given time? In case of speed in The sliding of the magnetic tape is changed to the magnetic tape's sliding speed at a certain range, the change of the inclination of the barrel rotates to the angle of inclination at a certain interval in case when the tape's sliding speed The magnet at a specific range is known. Processing repeats a number of signals that are read from magnetic tape successively by a revolving head mounted on a revolving cylinder. Where its bevel is shifted to a particular angle of inclination, creating a loop at specified intervals from each signal, repeating a certain number of readings from the magnetic tape successively by a rotating head in case When the sliding speed of the magnetic tape in Any of the periods is unknown. Divide the intervals as defined into a number of shorter periods. Combine cycles in each of the short intervals to obtain a certain sum. Measurement of the degree of change in the contours of the loop based on the combined values. Judging whether the degree of change is high or low The change is huge in the angle of inclination of the rotating barrel. Until the level of Change in the shape of the lower loop In cases when it is judged that the degree of change is high Little change in the angle of inclination of the revolving barrel. Until the level The change in the shape of the cycle is minimal. In the event that the level of change is low and the signal processing is reproduced From that point Cycles in which the degree of change of The smallest contours will be created.