TH8045B - The arc of the servo sample independent of the data architecture. - Google Patents

Abstract

The methods and factors described will record the sample arc. Servo into a magnetic plate (Or record a portion of the servo sample to tape) at equal distances on the groove assigned to it. And will read the curves of these servo samples (or parts of the servo samples) while performing the task of searching, calming and following the grooves. A method used to determine the distance in time that can be allowed between the arcs. Of servo samples (Or part of the servo sample), parts on the groove and length Of any relevant portion of data, such as a curve or a record of available data Different lengths that the magnetic disk or tape can accommodate. Will make the arc Of servo samples (Or part of the servo sample) that are evenly spaced on the groove. Assigned to each part within the data area of the data arc. Or is inside the flesh That of the identification number Or next to the location marker (For example, a machine (Position or index mark), the sampling rate from the servo sample arc (or servo sample segment) is constant and independent of the number and length. Of the dimensions Because of such independent relationship This method is suitable to It is used for recording in constant linear density. In a magnetic disk that is organized into strips and uses the arc of a servo example, for example, conventional fixed space divider architecture and even non-arc architecture such as Such as the architecture in the arrangement Divides the key-counting area where data is recorded in a long log of data. Different Including in a tape drive device that uses fixed space allocation architecture. Or a data-counting form as well

Claims (6)

1. Magnetic record plate The surface for recording the magnetic type of the dish is loud. It is divided into a number of radially spaced bands. Each bar contains A data groove with a number of the same center point. Every data groove in each bar is divided. Is the arc of the same amount of data The number of curves of data in the data groove of each bar. A bar is different from the number of data curves in a data groove of another bar or region. But each data arc in each bar has the same number of bits on the surface for that magnetic record. There are still a number of servo curves. Which has been done at a distance Generally equal angular Make these servos spanning across bands in a radial direction, generally with some servo arcs positioned within the arc of some data arc. 2. Plate according to claim 1, in the case of partial servo arc, arc with low The position is within the arc of some data arc. Split those curves into At least two parts Which have significantly different lengths in the circumference 3. Magnetic record plate The surface for recording the magnetic type of the dish is loud. Contains: - A number of radially spaced bands. Each bar consists of a groove. Information with a number of the same center point The number of data curves in each data groove of each tab is the same for every data groove in a tab. And is different from the number of data arcs per data groove in another bar or region. But each curve in each bar contains the same number of bits and a certain number of servo curves. Which are generally equally spaced. Each servo arc spans across bands in a typical radial. With arc At least one servo arc is positioned within the arc of one arc of the arc data. Tabs and divides the arc of the arc data into multiple segments. 4. Dish according to claim 3, in the case of the surface for recording the magnetic type of the plate It also has a common radial index mark for every bar. Spanning across different bars Generally radial And the servo arc, the first arc is positioned at the index mark. In the radial joint thereof 5. Plate according to claim 3, in the event that at least one servo arc An arc that is positioned within the arc of one arc is separated. Data curve The arc is divided into at least two segments. Which have significantly different lengths in the circumference 6. Dish according to claim 3, in the event that if variable M is representative of The number of data curves within each bar and the constant N represent the number of servo arcs, the ratio M to N for each bar is equal to the ratio between Two integers Each integer is within a range from 1 to 12.