Patent Application
20090097050
This application claims priority from Japanese Patent Application No. 2007-264452, filed on Oct. 10, 2007, the entire subject matter of which is incorporated herein by reference.
1. Technical Field
An aspect of the present invention relates to a display device, a printing apparatus, a method to display contents stored in storage devices, and a computer usable medium therefor.
2. Related Art
Conventionally, a display device to display names of files which are stored in each external memory device connected to the display device has been known. In the display device, however, contents of the files stored in the external memory device can be exposed to the other users, and confidentiality of the contents of the files may be risked.
In consideration of the above, in Japanese Patent Provisional Publication No. 2005-327070, for example, a display device which can prevent the files in the external memory devices from being exposed is disclosed. More specifically, when a user attempts to attach an external memory device to the display device which is already connected with a previous user's external memory device, the current user is prompted to remove the previous user's memory device so that the contents of the files stored in the previous user's memory device can be prevented from being exposed. Thus, when the previous user's memory device is removed, the current user is allowed to attach the new external memory device.
However, the above-referenced display device is assumed to be utilized by a plurality of users, each of which uses one external memory device at a time. Therefore, even when the current user attempts to attach a new external memory device in addition to the currently attached external device, the display device assumes the user has been replaced and prompts the user to remove the currently attached external device in order to attach the new memory device. Thus, it can be inconvenient that the user cannot use a plurality of external memory devices at a time with the display device to view the files stored separately in the respective memory devices.
In view of the above drawback, the present invention is advantageous in that a display device, a printing apparatus, a method to display data contents stored in a plurality of external storage devices being used by one user, and a computer usable medium therefor are provided.
According to an aspect of the invention, a display device to display contents representing data files stored in at least one external memory device attached to the display device is provided. The display device includes at least one connection interface through which an external memory device is attached to the display device, a judging unit to judge as to whether an external memory device is attached to one of the at least one connection interface, a list creation unit to create a list of data files which are stored in the external memory device according to the judgment made by the judging unit, a timer, which is activated after attachment of the external memory device to the display device, to measure a predetermined period, and a display control unit to display the list created by the list creation unit based on the data files stored in the external memory device which is attached to the display device before the predetermined period elapses.
According to the above configuration, the contents of the data files stored in external memory devices which are attached to the display device before the predetermined period elapses are considered to be attached by a single user so that usability of a plurality of external memory devices can be improved when the external memory devices are used by a single user.
According to another aspect of the invention, a display device to display contents representing data files stored in at least one external memory device attached to the display device is provided. The display device includes at least one connection interface through which an external memory device is attached to the display device, a judging unit to judge as to whether a first external memory device is attached to one of the at least one connection interface, a list creation unit to create a first list of data files which are stored in the first external memory device according to the judgment made by the judging unit, an indication receiving unit to receive a user's operation which indicates attachment of an external memory device to the display device is completed, and a display control unit to display the first list created by the list creation unit based on the data files stored in the first external memory device which is attached to the display device prior to receipt of the user's operation through the indication receiving unit.
According to the above configuration, the contents of the data files stored in external memory devices which are attached to the display device before the user's operation is received are considered to be attached by a single user so that usability of a plurality of external memory devices can be improved when the external memory devices are used by a single user.
According to another aspect of the invention, a printing apparatus is provided. The printing apparatus include a printing unit to form an image on a recording medium according to a data file stored in an external memory device, at least one connection interface through which the external memory device is attached to the printing apparatus, a display unit to display information concerning the data file stored in the external memory device being attached to the printing apparatus, a display control unit to restrict displaying the information concerning the data file when a printing operation to print the data file is activated.
According to the above configuration, before the printing operation starts, the external memory devices attached to the printing apparatus are considered to be attached by a single user (a first user); therefore, the contents of the data files stored in the external memory devices are displayed. When the printing operation starts, display of the contents of the data files is restricted so that the contents of the data files which belong to the first user can be prevented from being exposed to a second user even if the first user leaves the printing apparatus operating. Thus, usability of the printing apparatus when used by a plurality of users can be improved.
According to another aspect of the invention, a method to display contents representing data files stored in an external memory device in a display device is provided. The method include steps of judging as to whether the external memory device is attached to the display device, creating a list of data files stored in the attached external memory device, activating a timer to measure time after the external memory device is attached to the display device, and controlling displaying the list created in the list creating step based on the data files stored in the external memory device which is attached to the display device before the predetermined period elapses.
According to the above method, the contents of the data files stored in external memory devices which are attached to the display device before the predetermined period elapses are considered to be attached by a single user so that usability of a plurality of external memory devices can be improved when the external memory devices are used by a single user.
According to another aspect of the invention, a computer usable medium comprising computer readable instructions to display contents representing data files stored in an external memory device in a display device is provided. The computer readable instructions includes steps of judging as to whether the external memory device is attached to the display device, creating a list of data files stored in the attached external memory device, activating a timer to measure time after the external memory device is attached to the display device, and controlling displaying the list created in the list creating step based on the data files stored in the external memory device which is attached to the display device before the predetermined period elapses.
According to the above computer usable medium, the contents of the data files stored in external memory devices which are attached to the display device before the predetermined period elapses are considered to be attached by a single user so that usability of a plurality of external memory devices can be improved when the external memory devices are used by a single user.
Hereinafter, embodiments according to aspects of the present invention will be described with reference to the accompanying drawings.
A first embodiment according to the present invention will be described.
As shown in
The control unit 20 is a known microcomputer having a CPU, a ROM, and a RAM (not shown). Various programs to control the MFP 10 are stored in the ROM.
The first connection interface 14 and the second connection interface 15 are, according to the present embodiment, USB interfaces, although configuration of the connection interfaces 14, 15 is not limited to the USB interfaces but may be in different standards.
The external memory devices 30, on the other hand, are configured to have connection terminals which correspond to the connection interfaces 14, 15. Therefore, in the present embodiment, the external memory devices 30 are configured to have USB terminals. The external memory devices 30 may be, for example, a USB memory and an SD memory (registered trademark) which are configured with nonvolatile semiconductor memory device such as a flash memory, a magnetic storage device such as a hard disk drive, and a digital camera which supports PictBridge, a communication standard to connect the external device with the MFP 10.
According to the present embodiment, the MFP 10 is capable of directly printing an image included in a print file stored in the external memory devices 30 which are connected through the first and second connection interfaces 14, 15 without involving an external computer (not shown). The function to directly print such an image stored in the external memory devices 30 is referred to as a direct printing function in the present embodiment.
Additionally, the print file according to the present embodiment refers to a data file in the PDL (page description language) format which can be processed in the MFP 10. According to the present embodiment, the MFP 10 can process image files in the BMP (bitmap) format and the JPEG (joint photographic experts group) for the direct printing. Thus, in the present and the following embodiment, data files which can be processed for the direct printing are referred to as print files.
Operations in the MFP 10 according to the present embodiment will be described with reference to
The direct printing operations as shown in
The additional direct printing operation, of which flow is shown in
An operation of the MFP 10 when the direct printing operation is not activated will be described (see
In S1, it is examined as to whether an external memory device 30 is attached to one of the first connection interface 14 and the second connection interface 15. If it is determined that the external memory device 30 is attached to one of the first connection interface 14 and the second connection interface 15 (e.g., the first connection interface 14 in the present embodiment) (S1: YES), in S5, information concerning files stored in the external memory device 30 attached to the first connection interface 14 is extracted, and a list to represent contents of the information is created. Hereinafter, the external memory device attached to the first connection interface is referred to as an external memory device 31.
The information concerning files refers to information appended to the files and includes at least names of the files. Further, for example, owners of the files, created dates of the files, and modified dates of the files may be included.
Thereafter, in S10, a timer (not shown) is initialized and activated to measure time. In S15, it is examined as to whether a predetermined period (e.g., 10 seconds) has elapsed. If the predetermined period has not elapsed (S15: NO), in S20, it is examined as to whether another external memory device 30 is attached to the other connection interface (i.e., the second connection interface 15).
If another external memory device 30 is not attached to the second connection interface 15 (S20: NO), the process repeats S15. If another external memory device 30 is attached to the second connection interface 15 (S20: YES), in S25, information concerning files stored in the external memory device 30 attached to the second connection interface 15 is extracted, and a list to represent contents of the information is created. Hereinafter, the external memory device attached to the second connection interface is referred to as an external memory device 32.
Thereafter, in S10, the timer is again initialized and activated, and in S15, it is examined as to whether the predetermined period has elapsed. In S20, if the second connection interface 15 is maintained unattached (S20: NO), and the predetermined period has elapsed (S15: YES), in S30, the lists concerning the files stored in both of the external memory devices 31, 32 are displayed in the display unit 13 (see
Thereafter, in S35, the user's operation to select one of the data files in the lists presented in the display unit 13 is received in the MFP 10. In this step, the user is prompted to select one of the files which is to be printed in the direct printing operation. In S40, the direct printing operation for the selected data file is activated.
When the direct printing proceeds, in S43, presentation of the list with the files is restricted, i.e., the lists presented in the display unit 13 are deleted. In S45, it is examined as to whether the direct printing operation is completed. When the direct printing operation is completed (S45: YES), the operation to control the MFP 10 is terminated.
In S45, when the direct printing operation is incomplete (S45: NO), S45 is repeated until the direct printing operation is completed.
Next, an operation of the MFP 10 when the direct printing operation is activated will be described (see
Steps S50-S75 in the operation are executed similarly to S1-S25 respectively in
In S60, the timer is initialized and activated to measure time, and in S65, it is examined as to whether the predetermined period has elapsed. In S70, if the second connection interface 15 is maintained unattached (S70: NO), and the predetermined period has elapsed (S65: YES), in S80, it is examined as to whether the preceding direct printing operation is completed.
If the preceding direct printing operation is completed (S80: YES), in S85, the lists created in S55 and S75, concerning the files stored in both of the external memory devices 31, 32, are permitted to be displayed in the display unit 13 (see
In S80, if the preceding direct printing operation is incomplete (S80: NO), S80 is repeated. Meanwhile, the lists created in S55 and S75 are restricted from being displayed. The restriction is maintained until the direct printing operation is completed.
When the direct printing operation is completed (S80: YES), in S85, the lists created in S55 and S75 are displayed in the display unit 13. Accordingly, in S90, the user's operation to select one of the data files in the lists presented in the display unit 13 is received in the MFP 10. The succeeding steps S95-S100 are executed similarly to steps S35-S45; therefore, description of those steps is omitted.
According to the above embodiment, when a first external memory device 30 is attached to one of the first and second connection interfaces 14, 15, and a second external memory device 30 is attached to the other of the first and second connection interfaces 14, 15 within the predetermined period, it is considered that the second external memory device 30 is attached to be used by the same user as the user of the first external memory device 30 so that the names of the data files stored in the first and second external memory devices 30 are presented in the lists. Thus, usability of the data files stored in the plurality of external memory devices 30 can be improved.
According to the above embodiment, the judgment to determine as to whether the data files in the external memory devices 30 should be exposed is made based on the predetermined period which starts from a point when the last one of the external memory devices 30 is attached, rather than a point when the first one of the external memory devices 30 is attached. Thus, usability of the data files stored in the plurality of external memory devices 30 can be improved, specifically when more than two external memory devices 30 are used by one user.
According to the above embodiment, for example, when solely one external memory device 30 is attached to the MFP 10, a first period, which is from a point of attachment of the external memory device 30 to a point of elapse of the predetermined period, is equivalent to a second period, which is a combination of a period A and the predetermined period. The period A refers to a length of time starting from a point of attachment of the first external memory device 31 and ending at a point of attachment of the last external memory device (i.e., the second external memory device 32). However, it is to be noted that when solely one external memory device is attached to the MFP 10, the first external memory device 31 coincides with the last external memory device 32. Therefore, the period A is zero, and the second period is equated with the first period.
Meanwhile, when more than two external memory devices are attached to the MFP 10, as described in the above embodiment, and when the second external memory device 32 (i.e., the last external memory device) is attached to the MFP 10 within the predetermined period, the period A becomes greater than zero; therefore, the second period becomes greater than the first period.
Thus, the period to make judgment that the attached external devices 30 are to be used by the same user can be practically extended. Therefore, usability of the data files stored in the plurality of external memory devices 30 can be improved, specifically when more than two external memory devices 30 are used by one user.
Further, in the above embodiment, as illustrated in S80 in
Furthermore, as represented in S43 in
Still further, as represented in S85 in
Next, a second embodiment according to the present invention will be described. In the present and the following embodiments, configurations similar to those described in the first embodiment will be referred to by identical reference numerals, and description of those will be omitted.
It is to be noted, in the first embodiment, specifically in S30 (
Operations in the MFP 10 according to the present embodiment will be described with reference to
An operation of the MFP 10 when the direct printing operation is not activated will be described (see
In S110, it is examined as to whether an external memory device 30 is attached to one of the first connection interface 14 and the second connection interface 15. If it is determined that the external memory device 30 is attached to one of the first connection interface 14 and the second connection interface 15 (e.g., the first connection interface 14 in the present embodiment) (S110: YES), in S115, information concerning files stored in the external memory device 30 attached to the first connection interface 14 is extracted, and a list to represent contents of the information is created. Thereafter, in S120, the list created in S 15 (see
Steps S125-S140 are executed similarly to steps S10-S25 in
Following S140, in S145, the list created in S140 (see
Thereafter, in S125, the timer is again initialized and activated to measure time, and in S130, it is examined as to whether the predetermined period has elapsed. In S135, if the second connection interface 15 is maintained unattached (S135: NO), and the predetermined period has elapsed (S130: YES), the process proceeds to S150. The following steps S150-S160 are executed similarly to steps S35-S45 in
Next, a third embodiment according to the present invention will be described with reference to
When the timer is initialized and activated in S10, in S20, it is examined as to whether the second external memory device 32 is attached to the second connection interface 15. If the second external memory device 32 is attached to the second connection interface 15 (S20: YES), the process proceeds to S25′, and the list to represent the file names of the files stored in the second external memory device 32 is created. Thereafter, the process returns to S15, rather than S10 so that it is examined as to whether the predetermined period has elapsed.
Thus, when the period from S10 to current time exceeds the predetermined period (S15: YES), it is determined that the predetermined period has elapsed, and the lists created in S5 and S25′ are displayed in the display unit 13.
It is to be noted that the above modification of the flow can be similarly applied to the flowchart in the second embodiment.
Next, a fourth embodiment according to the present invention will be described with reference to
When the MFP 10 is not occupied by a preceding direct printing operation, and when the user provides an instruction to start the direct printing operation through the operation panel 12 or the display unit 13, the operation shown in
In S180, it is examined as to whether the user's operation to a function key (not shown) provided in the operation panel 12 or displayed in the display unit 13 is entered to indicate completion of attaching the desired external memory device 30 to the MFP 10.
If the user's operation is not entered (i.e., it is determined that more external memory device 30 is to be attached) (S180: NO), in S185, it is examined as to whether a second external memory device 32 is attached to the second connection interface 15.
In S185, if the second external memory device 32 is not attached to the second connection interface 15 (S185: NO), the process repeats S180. If t he second external memory device 32 is attached (S185: YES), in S190, the file names of the files stored in the second external memory device 32 are extracted, and a list to represent the file names is created.
Thereafter, the process returns to S180, and it is examined as to whether indication of completion of attaching the desired external memory devices 30 is entered (S180: YES), in S195, a list to be possibly created based on contents of additional external memory devices 30 which are attached to the MFP 10 after S190 is restricted from being exposed.
Thereafter, in S200, the lists representing the file names of the data files stored in the external memory devices 31, 32, which are attached prior to the affirmative judgment in S 180, are displayed in the display unit 13 (see
In S215, when the direct printing operation is completed (S215: YES), in S220, the restriction set in S 195 is terminated. The operation is terminated thereafter.
In S215, when the direct printing operation is incomplete (S215: NO), S215 is repeated until the direct printing operation is completed.
When the MFP 10 is occupied by a preceding direct printing operation, and when the user provides an instruction to start the direct printing operation through the operation panel 12 or the display unit 13, the operation shown in
In S260, it is examined as to whether a preceding direct printing operation is completed. If the preceding direct printing operation is completed (S260: YES), in S265, the lists representing the file names of the data files stored in the external memory devices 31, 32, which are attached prior to the affirmative judgment in S240, are displayed in the display unit 13 (see
If the preceding direct printing operation is incomplete (S260: NO), S260 is repeated. Meanwhile, the lists created in S235 and S250 are restricted from being displayed. The restriction is maintained until the direct printing operation is completed. Steps S270-S285 are executed similarly to S205-S220 shown in
According to the above embodiment, when completion of attaching the desired external memory devices 30 is indicated by the user's operation, and judgment to determine the completion is made, the file names of the files stored in the external memory devices 30 which are attached prior to the judgment are allowed to be exposed; therefore, usability of the plurality of external memory devices 30 used by one user can be improved.
In addition, the file names of the files stored in the external memory devices 30 which are attached after the judgment are restricted from being exposed; therefore, usability of the MFP 11 used by a plurality of users can be improved.
Further, the restriction is terminated when the direct printing operation to print the data files stored in the external memory devices 30, which are attached prior to the judgment, is completed. Therefore, the file names of the data files stored in the external memory devices 30 which are attached after the judgment can be presented to the user to view.
A fifth embodiment according to the present invention will be described with reference to
Although examples of carrying out the invention have been described, those skilled in the art will appreciate that there are numerous variations and permutations of the display device that falls within the spirit and scope of the invention as set forth in the appended claims. It is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or act described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
For example, application of the method is not limited to the MFP, but the method may be applied to a display device and an image forming apparatus having solely a printing function.
For another example, the method may be applied to an MFP having more than two connection interfaces. Alternatively, the method may be applied to an MFP having solely one connection interface. In this configuration, however, one connection interface is shared by the plurality of external memory devices 30 which are attached to the connection interface in turn.
Further, the predetermined period to wait for an additional external memory device 30 to be attached may not necessarily be fixed, but may be changed according to the user's preferences. Furthermore, presentation of the lists may be restricted from being exposed after the direct printing operation is started and further a predetermined period is elapsed. For another example, presentation of the lists may be restricted from being exposed after initiation of the direct printing operation and when an additional external memory device is newly attached to the MFP.
Further, in the first through third embodiments, the timer is activated after the information concerning the data files are extracted from the attached external memory devices 30; however, the timer may be activated, for example, when the external memory device 30 is attached.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2007-264452 | Oct 2007 | JP | national |
