CN1153380A - Information recording method for protecting information recorded on recording medium and apparatus therefor - Google Patents
Information recording method for protecting information recorded on recording medium and apparatus therefor Download PDFInfo
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- CN1153380A CN1153380A CN 96113367 CN96113367A CN1153380A CN 1153380 A CN1153380 A CN 1153380A CN 96113367 CN96113367 CN 96113367 CN 96113367 A CN96113367 A CN 96113367A CN 1153380 A CN1153380 A CN 1153380A
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- information
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Abstract
The present invention relates to a method and apparatus for recording and protecting information recorded on a recording medium. The method includes the steps of setting up a mode in which recording is performed on portions of the medium on which information has not been recorded in the medium, detecting portions of the medium where information has not been recorded in the recording medium, selecting a portion on which new information may be recorded among the detected portions, and recording new information from a starting position of the portion selected in the selecting step. According to the present invention, it is possible to prevent the unintentional erasure of the information recorded on the recording medium by confirming that the portion on which the information is recorded is a blank portion and recording new information on the blank portion.
Description
The present invention relates to a kind of protection and be recorded in recording of information method and device thereof on the recording medium, relate in particular to by on recording medium, writing down the method and the device of fresh information after detecting the position that information that the position of having write down and blank position prevent to be recorded selected to write down by erasing mistakenly.
Usually, if new information will be recorded on the videocassette that has write down information, then when another information recorded on it, the information of former record was just erased.Therefore, in routine techniques, developed a kind of by on tape, setting up the anti-basically device that stops record with protection record information thereon of a safety label.
With reference to Fig. 1, a kind of videocassette that is used for preventing the conventional safety label 10 that writes down thereon that has is shown.If safety label 10 is cancelled, record just is prevented from.But mark 10 only safe in utilization is difficult to the information that protection is write down, because still might enough carry out record when the blank of being exposed by cancellation safety label 10 is filled.And in routine copy prevention system, video-tape must rewinding or is fasted forward to search for the position of needed record.
An object of the present invention is to be recorded in recording of information method on the recording medium so that a kind of protection to be provided by the position of having write down in the detection record medium and in the new information of blank position record.
For achieving the above object, provide a kind of method to be used for recorded information on recording medium according to one in information record carrier above information recording method formula, this method may further comprise the steps: determine a kind of mode, according to this mode in recording medium as yet not the position of recorded information carry out record; Detection position of recorded information not as yet in recording medium; In the middle of all parts that detected, select the position of the new information of record; And from selecting the new information of reference position record at that selected position of step.
Another object of the present invention provides a kind of device, and this device use said method protection is recorded in the information in the recording medium.
For achieving the above object, a kind of information record carrier is provided, this device comprises: be used for detecting the signal supervisory instrument from the control signal in the signal that is recorded in recording medium; According to a predetermined servo-control signal recording medium is moved so that signal supervisory instrument can read the servomechanism installation of the signal that is write down on recording medium forward and backward, be used for when control signal is detected by signal supervisory instrument finding the position of having write down and be used for producing servo-control signal driving the servomechanism installation removal search recording medium control device in the zone of record controls signal not as yet, and new information is recorded in that regional pen recorder that signal supervisory instrument detects control signal according to the discovery of control device.
Describe its preferred embodiment in detail by the reference accompanying drawing, above purpose of the present invention and advantage will be more obvious, in the accompanying drawings:
Fig. 1 represents a kind of tape that prevents the safety label of erasing that has;
Fig. 2 illustrates a kind of according to information recording method of the present invention; And
Fig. 3 illustrates a kind of according to information record carrier of the present invention.
Fig. 2 illustrates a kind of according to information recording method of the present invention.
At first, determine an information recording method formula (step 200)., when pressing the record key when determining the information recording method formula, just show a menu screen herein, it is that the current location of the tape from be contained in cassette holder is prepared executive logging or at the blank position executive logging of tape that the prompting user selects.
Select one " blank position record " (step 210) from shown menu screen.When " the blank position record " of step 210 was selected, whole tape was scanned to determine and writes down or do not record information (step 220).At this moment, just obtained about writing down the position and not writing down the information at position.That is the position that detects and do not detect in (extracting by the audio frequency control head) control arteries and veins is considered to the position of existing record on it respectively and unwritten position on it.
In the middle of the more than one blank position that from the testing result of step 220, is obtained, choose a blank position (step 230) of preparing the record fresh information.Carry out rewinding or fast feed with head position at a selected blank position.By so doing, magnetic head just is positioned in the starting point (that is, do not detect the starting point of gating pulse in the middle of selected blank position) at selected blank position.When the record fresh information reference position be confirmed as step 230 as a result the time, just change recording mode and opening entry (step 240) over to.
Fig. 3 illustrates a kind of recording of information device that is recorded in recording medium that is used to according to the present invention protect.Label 300,310,320 and 330 represent the audio frequency control head of the control signal of a detection record on tape respectively, a servo-drive system, a microprocessor and an osd generator.
The control signal that audio frequency control head 300 detects from tape.Servo-drive system 310 is amplified to a predetermined level with the control signal of audio frequency control head 300 output so that microprocessor 320 is found and according to carry out rewinding or tape transport forward fast from the control signal of microprocessor 320.Microprocessor 320 uses from the gating pulse of servo-drive system 310 outputs and finds which position has been recorded the control signal which position also not to be recorded and will to be used for searching for Unrecorded position with and has offered servo-drive system 310.According to the data of display menu screen being offered CRT from the control signal osd generator 330 of microprocessor 320.
The work of equipment shown in Figure 3 is as follows:
When the record key is selected, servo-drive system 310 will be carried out work according to the instruction from microprocessor 320, and 300 pairs of whole tapes of audio frequency control head scan, in the control signal that the tape lower part detects and sound signal writes down together, and this control signal outputed to servo-drive system 310.Because the control signal that is detected by audio frequency control head 300 is a tiny signal, so servo-drive system 310 is amplified to this control signal predetermined level and it is exported to microprocessor 320.Microprocessor 320 is realized this input control signal and is had or do not exist the blank position of Control Servo System 310 search according to this control signal.At this moment, microprocessor 320 indication osd generators 330 display screen menu, this menu points out whether carry out record at this record position.
As mentioned above; according to the present invention, be used to protect the method and apparatus that is recorded in the information on the recording medium unexpectedly to be erased by after the existence of confirming a record position, writing down the information that makes it possible to prevent to be recorded on the recording medium at blank position.
Claims (3)
1. according to the more than one information recording method formula in a kind of information record carrier, be used for that method for recording information may further comprise the steps on recording medium:
Determine a kind of mode, according to this mode in recording medium as yet not the position of recorded information carry out record;
Detection does not have the position of recorded information in recording medium;
In the middle of the described all positions that are detected, select a position record fresh information; And
Reference position record fresh information from selected position described selection step.
2. according to a kind of method that is used in recording medium information of claim 1, wherein exist or do not exist to determine whether to answer recorded information according to the control signal that signal read from be recorded in recording medium in described detection step.
3. an information record carrier comprises:
Be used in the signal that is recorded in recording medium, detecting the signal supervisory instrument of control signal;
According to a kind of predetermined servo-control signal be used for recording medium moved forward or backward so that described signal supervisory instrument can reading and recording at the servomechanism installation of the signal of this recording medium;
When being detected by described signal supervisory instrument, control signal is used for finding that one has been write down the position and has been used to produce described servo-control signal and drives described servomechanism installation with the searching record medium control device in the zone of record controls signal not; And
According to the discovery of described control device, be used for not detected the pen recorder of record fresh information on the zone of control signal at described signal supervisory instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96113367 CN1153380A (en) | 1995-09-26 | 1996-09-25 | Information recording method for protecting information recorded on recording medium and apparatus therefor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR31912/95 | 1995-09-26 | ||
| CN 96113367 CN1153380A (en) | 1995-09-26 | 1996-09-25 | Information recording method for protecting information recorded on recording medium and apparatus therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1153380A true CN1153380A (en) | 1997-07-02 |
Family
ID=5121831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96113367 Pending CN1153380A (en) | 1995-09-26 | 1996-09-25 | Information recording method for protecting information recorded on recording medium and apparatus therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1153380A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114922C (en) * | 1998-02-03 | 2003-07-16 | 三洋电机株式会社 | Information recorder, recording method, and recording media |
-
1996
- 1996-09-25 CN CN 96113367 patent/CN1153380A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114922C (en) * | 1998-02-03 | 2003-07-16 | 三洋电机株式会社 | Information recorder, recording method, and recording media |
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