TH46982A - Datasets to save registers and synchronization of recording medium - Google Patents

Abstract

DC60 (28/06/43) A system and method for accurately registering and synchronizing datasets on media. The recording center contains pre-recorded servo patterns. Recording medium It is based on the sustained motion for reading and / or writing of datasets interrupted by stopping at the end of the selected dataset and restarting during the continuous movement of the recording medium. A detector attached to the servo system will Reads consecutive linear position registers. Which is modulated into a servo Pre-recorded patterns Interpolators in the range include registration information. That is pre-recorded to provide a clean registration information for the dataset when the recording medium tape drive unit is stopped. Then the reaping back The mediation and the re-start of motion results in the logging information being read and interpolated, the detector reads and re-interpolates the pre-recorded log data, and the comparison cycle is compared. Recordings that have been read and inserted Re-interpolated with the logging message that has been read and inserted. Which was provided and Any predetermined overlap and indicate a counterpart. The form organizer maps the data. Articulated with a comparison circuit In response to an indication, the matchmaker will synchronize the Reading and / or writing of datasets on the recording medium. Systems and methods for accurately registering and synchronizing datasets on the medium. The recording center contains pre-recorded servo patterns. Recording medium It is based on the sustained motion for reading and / or writing of datasets interrupted by stopping at the end of the selected dataset and restarting during the continuous movement of the recording medium. A detector attached to the servo system will Reads consecutive linear position registers. Which is modulated into a servo Pre-recorded patterns Interpolators in the range include registration information. That is pre-recorded to provide a clean registration information for the dataset when the recording medium tape drive unit is stopped. Then the reaping back The mediation and the start of the movement will result in the log information being read and inserted, the detector reads and reinsert the pre-recorded log data and the comparison cycle is compared. The logging information that is read and inserted Re-interpolated with the logging message that has been read and inserted. Which provides and Any predetermined overlap and indicate a counterpart. The form organizer maps the data. Articulated with a comparison circuit In response to an indication, the matchmaker will synchronize the Reading and / or writing of datasets on the recording medium. Calibrate will synchronize the read and / or write of the data set on the recording medium.

Claims (2)

1. A method for registering and synchronizing data sets on the recording medium which the recording medium has. Pre-recorded patterns Which recording medium will depend on Continuous motion for reading and / or writing the said dataset Which will be interrupted by Stop at the end of the selected series, rewind the tape, and restart. It consists of the steps of during the continuous motion of the said medium. While reading And / or writing the dataset on such log medium; reading and interpolation (103,107) contiguous linear position registers are modulated. Inside the recorded servo tap turn They are pre-recorded on such recording medium for readability and interpolation. And register a linear position for that dataset. The rewinding of the tape and the resumption of the movement of the said medium based on the said stop provides (134) linear position registration information. Read, and it is interpolated, which is selected. Reading and Interpolation (143,147) Accurate linear position register data. Record in advance again. Comparison (152) Linear position registration news that is read and being Interpolated again With a linear position register message that is read and interpolated, which Was provided therein And matchmaker identification and synchronization (160) in response to such matchmaker indication, reading and / or writing of the said dataset on the recording medium. 2. Method as stated in claim 1, where such pre-recorded linear position registration information is pre-recorded on at least two parallel servo patterns. Itself and by which the sequential and readable steps and interpolation thereof And the process of reading and Re-interpolation is executed according to one such parallel servo pattern and consists of The following additional steps Continuous reading and interpolation of errors in the reading process According to one of the aforementioned parallel servo patterns and their interpolation on continuous reading and interpolation, and Read and re-interpolate into another parallel sero pattern, dine said when an error is detected. 3. Method as stated in claim 2, where the pre-recorded servo pattern It consists of a framework of a group of recursive pairs of changes on the state and where the procedure is set. Such faults include the identification of missing or incremental replacements. Comes from a pair of such state transitions. 4. Method as stated in claim 2 where the servo pattern consists of a frame. Of the group of recursive pairs of transitions and the linear position register information was The modulated pre-record consists of a single bit of longitudinal loop data with multiple The bits in each frame of the group of recursive pairs of such transitions and where the step Such flaw detection consists of the identification of the undetected bits in a group of pairs of One group of such transitions. 5. Method as stated in claim 1, where the aforementioned servo pattern consists of a frame. Of an alternating group that has a recursive pair of transitions And position registration information Such a modulated pre-recorded linear consists of a single bit of horizontal position data. Long, with several bits in each frame of the recursive pair of the transition, and where The continuous reading and interpolation procedures, and the reading and re-interpolation, consist of reading such multi-bit longitudinal position data. And counting the half frame Each frame of a group of recursive pairs of state transitions starting from the first bit. Of such longitudinal position data To include such linear position registration information. 6. The method is stated in claim 1 where the servo pattern consists of a frame. Of an alternating group that has a recursive pair of transitions Where position registration information A pre-recorded linear modulated thereof Contains the characters used in the synchronization that follow. With longitudinal position data Each bit of the character used in such a synchronization, and The longitudinal position data consists of a single bit in each frame of a recursive pair of Such a change And by that continuous reading and such interpolation and The reading and re-interpolation procedures consist of reading the characters used in the synchronization. And the said longitudinal position data and the count of each half-frame of the group. Of the duplicate of the change on such condition Where it starts from the first bit of the character used to Synchronize such data to include the said linear position registration data. 7. The method is stated in claim 1, where the dataset is separated by the dataset separator and by the procedure. Such a synchronization consists of Synchronization readings and / or This is written on the separator of that dataset. Followed by the dataset that the position registration information 8. The method is stated in claim 1 where the recording medium consists of a magnetic tape and where the servo pattern consists of. The frame of the group that is switched to have a pair that It is a recursion of 4 and 5 non-parallel parent transitions. Each bit of the data Such a modulated pre-recorded linear position register consists of at least one modified pair of such a magnetic transition. In that group, one in each frame, and whereby continuous reading and such interpolation and reading process And again the interpolation consists of reading the aforementioned bit of positional register information. Such modulated pre-recorded lines and group counts in each half frame of the Such pre-recorded linear position registration data is modulated to include such linear position register information. 9. DataSet Synchronization Registration System for Record Media Based on. Longitudinal Which contains the pre-recorded servo patterns The recording medium is mounted on the tape drive unit (12) which controls the recording medium to continuously move for reading and / or recording. Write the data set on the recording medium. This is interrupted by a stop at the end of the selected dataset, the rewinding of the propulsion device, and the start of such a continuous motion of the medium. For recording it again The tape drive unit has a servo system (52) for reading. The Sirzo pattern is pre-recorded on the said medium. It consists of a detector (102) connected to the said servo system for reading the data. Register a pre-recorded linear position that is modulated inside the said servo pattern on the The recording medium During the motion of such recording medium, the interpolator (106) for the interpolation of the linear index register data is Record in advance The aforementioned detectors and the interpolate will provide information on the Register a linear position for the aforementioned series. The logic (120) is connected to the aforementioned tape drive unit, to the aforementioned detector, and to the interpolate. The second response to stopping the said drive unit. Rewinding the tape, and starting the continuous movement again. To provide information on the registration of such linear positions at Read and be interpolated as such that is selected. A comparator circuit (150) is connected to the aforementioned detector, with the interpolator. And with that logic responding to the said tape drive unit to the Such continuation of the aforementioned recording medium To compare position registration information Lines that are read and interpolated again to the linear position register messages that are read and are The interpolation which is provided thereof and indicates the comparator and data formatter (54) are connected to the aforementioned comparator circuit. Responding to Indication of such a match For synchronizing reading and / or writing of such datasets on The recording medium is 1 0. The system is stated in claim 9 where the linear position registration information is recorded. The preset is pre-recorded on at least two parallel servo patterns. It also includes the following components. A switch attached to the said servo system and with the said detector for providing Contains such pre-recorded linear position registration information from any one of the Two parallel servo patterns go to the detector. And for switching During the aforementioned pre-recorded linear position registration data from the servo pattern These two parallel and fault detectors are attached to the said servo system and the said switches. For detecting faults in the pre-recorded linear position registration data. To have such According to one such parallel servo pattern And when a fault is detected, the switch will perform a switch to another parallel servo pattern. 1 1. The system is stated in claim 10, where the pre-recorded servo pattern. Such It consists of a group framework of recursive pairs of state transitions. And by which the detector Such errors indicate missing or additional transitions to detect such faults. 1 2. The system is stated in claim 10, where the servo pattern consists of a frame of A group of recursive pairs of transitions. And the linear position registration data was recorded. The modulated advance consists of a single bit of longitudinal position data that contains several bits in Each frame of the said group contains a recursive pair of transitions and where the transducer The error identifies the undetected bits in one of those groups with a transitions pair to detect such errors. It consists of a framework The alternating group to the recursive pair of state transitions and linear position register data. The modulated pre-recorded bits contain a single bit of longitudinal position information containing Several bits in each frame of the recursive pair of such transitions and where the detectors It reads such multi-bit longitudinal position data, and interpolation at that interval counts each half-frame in the segment containing a recursive pair of state transitions. By starting From the first bit of the positional information along that line To include position registration information 1 4. The system is stated in claim 9, where the servo pattern consists of a frame. An alternating group containing a recursive pair of state transitions. Whereby position-oriented registration information The modulated pre-recorded line contains the synchronization characters followed by. Longitudinal position data Where each bit of the character used in such synchronization and its data Such longitudinal positions consist of a single bit in the frame. Each of the recursive pairs of Change such condition And where the detector reads the characters used in that synchronization. And such longitudinal position data And the interpolation during that will count each half of the frame In a group of repetitive tapered pairs of transitions It starts with the first bit of the character used in Such synchronization to include such linear position registration information 1 5. The system is stated in claim 9, where the data is separated by the dataset separator and by the organizer. Such data formats will synchronize their read and / or write operations. Separate the data set This is followed by a series of data where the linear position registration data has been matched. 1 6. The system is stated in claim 9 where the recording medium consists of magnetic tapes and the said servo pattern consists of. The frame of the alternating group that contains the correct pair. Recursion of 4 and 5 non-parallel magnetic transformations in which each bit of the Register a modulated pre-recorded linear position, consisting of a pair of Adjusted on at least one such pair of magnetization in One such group in each frame and where the detector reads that bit of position registration information. A pre-recorded linear that is modulated therein And the interpolate during that period will count the group Each half-frame portion of the pre-recorded linear position registration data is modulated to include such linear position register information 1 7. Magnetic tape medium. Which contains information, information, registration, linear position at Can be inserted into which are recorded in advance Which is saved in the servo pattern of the Change the state of the magnetic line Which scopes at least one longitudinal servo track consisting of a number of frames (73) of groups alternating along the Burst pattern (74,75), each with an alternating number of meanings. Go of at least two pairs of non-magnetic velocity tracks. Parallel tracking servo state change (80,81,82), where at least one of this state change The distance between each pair is continuously variable along the length of the track. At least two such replacements of the aforementioned recursive pairs of groups in each frame are changed. It is longitudinally modified to follow the other transitions of the aforementioned transition of the recursive pair. The aforementioned modifications to the state include registration information. Modulated linear position And each of the above groups contains interpolation data 1 8. Magnetic tap medium as stated in claim 17 whereby the aforementioned servo pattern It consists of an alternating group frame containing recursive pairs of 4 and 5 transitions and a modified state of the modulated linear position register information in A group consists of a single bit of longitudinal position data that contains several bits. In each frame of The group contains a recursive pair of transitions 1. 9. The magnetic tape medium, as described in claim 17, consists of two longitudinal servos, each consisting of a servo pattern of Changing the state of magnetic force lines That was saved It has the same alternating group that has a recursive pair of state transitions. It contains the same modulated linear position register information and information about the 2 0. The magnetic tape medium is stated in Clause 17, whereby the information about the magnetic tape. The modulated linear position register also contains the characters used in the synchronization. Followed by longitudinal position data 2 1. The magnetic tape medium as stated in claim 20 where the positional information along It contains messages in a unique order. With the total length of the tape medium Such magnets 2 2. The magnetic tape medium as specified in claim 17, where each Burst Pattern's optional group contains information about the interpolation.