Patent Document

FIELD OF THE INVENTION 
     The present invention relates to a cartridge memory read/write device reading/writing data signals of a cartridge memory built in a magnetic tape cartridge, and in more particular, relates to the cartridge memory read/write device which can write data signals in plural kinds of cartridge memories. 
     BACKGROUND OF THE INVENTION 
     Generally, in a magnetic tape cartridge used as a recording medium for backup of a computer is built a cartridge memory of a non-contact recording medium, in which data signals such as manufacture/management information are designed to be able to be written. Meanwhile, as the management information, for example, there exist data position information, media usage histories, error logs, and the like. 
     A timing when the data signals are written in the cartridge memory differs according to a difference of manufacturing processes of the magnetic tape cartridge. For example, as for a process winding a magnetic tape on a tape reel of the magnetic tape cartridge, following forms exist and corresponding to respective forms, timings to write the manufacture/management information and the like in the cartridge memories differs, respectively. 
     Firstly, there exists a form winding a magnetic tape supplied from so called a pancake on a tape reel prior to being built in a magnetic tape cartridge. In a final process of assembling the magnetic tape cartridge, the form builds the tape reel, in which the magnetic tape is already wound in a cartridge case, and a cartridge memory. Therefore, writing data signals into the cartridge memory is after the final process of assembling the magnetic tape cartridge, so writing the data signals is performed by one cartridge memory read/write device (for example, see Japan patent laid open publication 2001-237639). 
     Secondary, there exists another form winding a magnetic tape on a tape reel already built in a magnetic tape cartridge. The form arranges a plurality of tape winders in a production line and winds the magnetic tape on the tape reel of each magnetic tape cartridge by each tape winder. Therefore, writing data signals into a cartridge memory is performed by a cartridge memory read/write device installed at each winder when the magnetic tape is wound on the tape reel by each winder. 
     By the way, in these years, cartridge memories are variously manufactured in their kinds as their performance is improved, so when writing data signals in the cartridge memories, writing as well as reading are not possible unless using an exclusive cartridge memory read/write device corresponding to respective kinds. Therefore, in any of the above forms, every time when writing the data signals in different kinds of cartridge memories, it is necessary to change to cartridge memory read/write devices corresponding to the respective kinds. 
     However, if the cartridge memory read/write device is changed each time to write data signals in plural kinds of cartridge memories, a production line has to be stopped during changing, thereby a problem of productivity going down existing. In particular, when the cartridge memory read/write device is installed at each tape reel winder, every cartridge memory read/write device has to be changed, thereby the productivity remarkably going down. 
     SUMMARY OF THE INVENTION 
     An exemplary object of the present invention is to provide a cartridge memory read/write device which can write data signals in plural kinds of cartridge memories. 
     A cartridge memory read/write device of the invention is the device used in a production line where plural kinds of cartridge memories flow and is characterized by being equipped with plural kinds of read/write units reading/writing data signals corresponding to respective kinds of plural kinds of cartridge memories and a control unit selecting a read/write unit corresponding to kinds of cartridge memories flowing on the production line. 
     The cartridge memory read/write device of the invention enables, in writing the data signals in a cartridge memory, one cartridge memory read/write device to handle the plural kinds of cartridge memories by selecting a read/write unit corresponding to kinds of cartridge memories flowing on the production line out of the plural kinds of read/write units. Accordingly, because a change to a cartridge memory read/write device corresponding to the kinds of cartridge memories is not needed each time, productivity can be improved. 
     Another cartridge memory read/write device of the invention is the device used in a tape winder winding a magnetic tape on a tape reel and is characterized by being equipped with plural kinds of read/write units reading/writing data signals corresponding to respective plural kinds of cartridge memories and a control unit selecting a read/write unit corresponding to kinds of cartridge memories built in a magnetic tape cartridge out of the plural kinds of read/write units. 
     The another cartridge memory read/write device of the invention enables, in writing data signals in a cartridge memory, one cartridge memory read/write device to handle the plural kinds of cartridge memories by selecting a read/write unit corresponding to the kinds of cartridge memories built in the magnetic tape cartridge out of the plural kinds of read/write units. Accordingly, because a change to a cartridge memory read/write device corresponding to the kinds of cartridge memories is not needed each time, the productivity can be improved. 
     Still another cartridge memory read/write device of the invention is, in the same configuration of the firstly and secondary described devices, is characterized in that the control unit selects a read/write unit based on a command input from outside. 
     According to the still another cartridge memory read/write device of the invention, the control unit is composed so as to select a read/write unit based on a command input from outside. Therefore, in the case of kind of cartridge memory being identified, because only a read/write unit corresponding to the cartridge memory can be selected, it is not necessary to try to read default data written in the cartridge memory. As a result, the productivity can be further improved. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a front view showing a tape winder at which a CM (cartridge memory) read/write device is installed. 
         FIG. 2  is a configuration drawing showing a CM read/write device. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Hereinafter, one of embodiments of a cartridge memory read/write device related to the present invention will be described in detail, referring to drawings as needed. In the embodiment, a case in which the cartridge memory read/write device is installed at a tape winder is described. 
     Firstly, a configuration of a tape winder at which the cartridge memory read/write device (hereinafter referred to as “CM read/write device”) is described referring to FIG.  1 . 
     A tape winder W shown in  FIG. 1  is equipment to wind so called a pancake-form magnetic tape T on a tape reel CR built in a magnetic tape cartridge C after cutting the magnetic tape T at a predetermined length. In addition, the tape winder W is the equipment to write manufacture/management information and the like in a cartridge memory CM (see  FIG. 2 ) built in the tape winder W. 
     As shown in  FIG. 1 , the tape winder W is mainly equipped with a tape supplying device  10 , a tape winding device  20 , a CM read/write device  30 , a blade device  40  polishing a surface of a magnetic tape T, cleaning devices  50  cleaning both surfaces of the magnetic tape T, a tension adjusting device  60  adjusting tension of the tape T in running, a magnetic tape cartridge supplying unit  70  supplying the tape winding device  20  with a stocked magnetic tape cartridge C and a magnetic tape cartridge discharging unit  80  discharging a magnetic tape cartridge C in which the tape T is wound on a tape reel CR and manufacture/management information and the like are written. Moreover, a plurality of tape guides  90  are arranged at adequate places to guide the tape T till the tape winding device  20 . In addition, a number 100  in the drawing is an operation panel to operate the tape winder W. 
     The tape supplying device  10  is the device to supply the tape winding device  20  with the magnetic tape T and has reels R 1  and R 2  on which the pancake-form magnetic tape T is each wound. The supplying device  10  rotates the reel R 1  (or reel R 2 ) at a predetermined rotation number by a reel driving device not shown in the drawing and sends out the tape T toward the tape winding device  20 . Meanwhile, because the tape supplying device  10  has the two reels R 1  and R 2 , it is designed to continuously supply the tape winding device  20  with the tape T by changing to the reel R 2  when the tape T on one reel R 1  becomes vacant. 
     The tape winding device  20  is the device to wind the tape T supplied from the tape supplying device  10  on the tape reel CR of the magnetic tape cartridge C. The winding device  20  firstly cuts the tape T supplied from the supplying device  10  at a predetermined length by a cutting means not shown in the drawing. Then, the winding device  20  rotates the tape reel CR of the magnetic tape cartridge C at a predetermined rotation number by the reel driving device not shown in the drawing and winds the tape T cut at the predetermined length. 
     The CM read/write device  30  is the device to write the manufacture/management information and the like in the cartridge memory CM built in the magnetic tape cartridge C and is arranged between the winding device  20  and magnetic tape cartridge discharging unit  80 . The CM read/write device  30  has, as shown in  FIG.2 , three kinds of read/write units  31   a ,  31   b , and  31   c  and a control unit  32 . The read/write units  31   a ,  31   b , and  31   c  can read and write data signals of the cartridge memory CM corresponding to different kinds of cartridge memories, respectively. In addition, the control unit  32  selects the read/write unit  31   a ,  31   b , or  31   c  corresponding to the cartridge memory CM built in the magnetic tape cartridge C and controls so as to write the manufacture information and the like. 
     Next, operation of the CM read/write device  30  in the tape winder W thus composed is described referring to FIG.  2 . 
     Firstly, the control unit  32  of the CM read/write device  30  tries to read default data written in the cartridge memory CM built in the magnetic tape cartridge C by an arbitrary CM read/write unit  31 , for example, the read/write unit  31   a . Then, if the default data can be read out of the cartridge memory CM, the read/write unit  31   a  which tried to read turns out to correspond to it. In the case, the control unit  32  controls to write the manufacture/management information and the like in the cartridge memory CM. On the contrary, if the default data cannot be read out of the cartridge memory CM, the read/write unit  31   a  which tried to read turns out not to correspond to it. Meanwhile, in the cartridge memory CM, the default data such as a serial number, manufacture information, and the like are written in advance. 
     Next, if the default data cannot be read out of the cartridge memory CM by the read/write unit  31   a , try to read the default data written in the cartridge memory CM built in the magnetic tape cartridge C by the read/write unit  31   b  different from the last time. Then, if the default data can be read out of the cartridge memory CM, the read/write unit  31   b  which tried to read turns out to correspond to it. In the case, the control unit  32  controls to write the manufacture/management information and the like in the cartridge memory CM. On the contrary, if the default data cannot be read out of the cartridge memory CM, the read/write unit  31   b  which tried to read turns out not to correspond to it. 
     Next, if the default data cannot be read out of the cartridge memory CM by the read/write unit  31   b , try to read the default data written in the cartridge memory CM built in the magnetic tape cartridge C by the remaining read/write unit  31   c . Then, if the default data can be read out of the cartridge memory CM, the read/write unit  31   c  which tried to read turns out to correspond to it. In the case, the control unit  32  controls to write the manufacture/management information and the like in the cartridge memory CM. On the contrary, if the default data cannot be read out of the cartridge memory CM, the read/write unit  31   c  which tried to read turns out not to correspond to it. 
     Thus, firstly try to read the default data written in the cartridge memory CM by each data signal read/write unit  31   a  through  31   c  and write the manufacture/management information and the like in the cartridge memory CM by the read/write unit  31  which can read the default data out of the cartridge memory CM, thereby being able to handle plural kinds of cartridge memories by one cartridge memory read/write device. Accordingly, because a change to a cartridge memory read/write device corresponding to the kinds of cartridge memories is not needed each time, the productivity can be improved. 
     Thus, although one of embodiments of the present invention is described, the invention is not limited to such the embodiment and various variations are available as far as they are based on the technical ideas of the invention. 
     For example, in the embodiment, although the control unit  32  controls which to use by firstly trying to read the default data in order to select the read/write unit  31 , the invention can compose so as to select a read/write unit based on a command input from outside. Thus, in the case of kind of cartridge memory being identified, because only a read/write unit corresponding to the cartridge memory can be selected, it is not necessary to try to read the default data written in the cartridge memory. As a result, the productivity can be further improved. 
     Moreover, although in the embodiment the CM read/write device  30  is provided in the tape winder W, in the present invention it may not be provided in the tape winder W and can also be made to function as an independent CM read/write device. Thus, the invention is available not only for a form of writing data signals in a cartridge memory in a tape winder but also for another form of writing management information and the like after a final process in which a magnetic tape cartridge is assembled. To be more precise, wind a magnetic tape on a tape reel before the tape reel is built in the magnetic tape cartridge in the tape winder, record manufacture/management information and the like of the wound magnetic tape, call up the recorded manufacture/management information and the like, and write in the cartridge memory. In the case, if in the final process different kinds of cartridge memories are built in, data signals can be written in the cartridge memories by one CM read/write device. 
     Moreover, in the embodiment, although three kinds of read/write units are provided, the invention is not limited to this and if more than one kind, any kinds are available. By increasing read/write units, it is possible to handle more kinds of cartridge memories. 
     Still moreover, in the embodiment, although a magnetic tape is used as a recording medium, an optical recording tape is also available.

Technology Category: g