JP2010033155A - Information processing apparatus, information processing method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To set up a searching condition by simple operation. <P>SOLUTION: A navigation main part 14 is used for road guide of a car. The navigation main part 14 searches a route on a digital map from a form 21 in which the map and the position information are printed overlappingly based on the position information read with an electronic pen 12. A start point and a destination point, for example are set up based on a writing track of the electronic pen 12 to the form 21. The route from the set-up start point to the destination point is searched. This device, method and program are suitably used in the navigation system wherein the navigation main part is installed in a vehicle such as a car. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information processing apparatus, an information processing method, and a program.

  Along with the downsizing and increasing the capacity of memories, various types of small devices (hereinafter, such devices are appropriately referred to as memory devices) that can be easily used by storing digital data in the memory have been developed. .

  Also, for example, a pen-type device that is used together with electronic paper printed with a map and a dot pattern superimposed on it, decodes the dot pattern read from the pen tip, and acquires geographical coordinate values (for example, latitude and longitude) of the map An electronic pen is also a memory device.

  By the way, the digital data stored in the memory needs to be appropriately deleted in order to secure the storage capacity of the memory. For example, in a memory player where digital music data can be stored in memory and viewed, the user deletes the digital music data from the memory by operating the buttons and key controls installed on the memory player body and remote controller housing. can do.

  The digital data can also be deleted from the memory by connecting the memory player to a personal computer wirelessly or by wire and operating the memory player via a predetermined application program executed on the personal computer.

  The electronic pen transmits the read data to the receiver as appropriate, but the digital data is automatically deleted from the memory of the electronic pen when the reception is completed. It is also possible to cause the electronic pen to read a predetermined data deletion command so that the data is deleted when the power is turned off (see Patent Document 1).

JP 2003-335082 A

  As described above, in order to delete the data stored in the memory in the conventional memory device, it is necessary to operate a switch provided in the housing or to operate an external connection destination such as a personal computer. There is.

  The present invention has been made in view of such a situation, and makes it possible to easily delete data stored in a memory.

  An information processing apparatus according to the present invention is stored in a storage medium in accordance with the detected inclination angle and detection means for detecting the inclination angle of the information processing apparatus in an information processing apparatus that processes data stored in the storage medium. Deletion means for deleting the stored data.

  The deleting unit can delete an amount of data corresponding to the detected tilt angle from the storage medium.

  In the storage medium, information indicating the type of data is stored in association with the data, and the deletion unit can delete the type of data corresponding to the detected inclination angle from the storage medium.

  In the storage medium, data indicating that data deletion is not permitted is associated and stored, and the deletion unit is associated with information indicating that data deletion is not permitted. , That data deletion can be restricted.

  An operation unit that is operated when data deletion is started is provided, and the detection unit detects an inclination angle of the information processing apparatus when the operation unit is operated, and the deletion unit is configured to detect the inclination angle. Data stored in the storage medium can be deleted.

  It further comprises a specifying means for recognizing the drawn character image and designating an amount of data to be deleted according to the recognized character image, the deleting means depending on the detected inclination angle and the data amount designated by the designating means. Data can be deleted.

  An information processing method according to the present invention is an information processing method for an information processing apparatus that processes data stored in a storage medium, and a detection step for detecting an inclination angle of the information processing apparatus, and storage according to the detected inclination angle. And a deletion step of deleting data stored in the medium.

  A program according to the present invention is a program for causing a computer to execute a process of deleting data stored in a storage medium of an information processing apparatus that processes data stored in a storage medium. It is characterized by causing a computer to execute processing including a detecting step for detecting and a deleting step for deleting data stored in a storage medium in accordance with the detected tilt angle.

  In the present invention, data stored in the memory can be easily deleted.

  FIG. 1 is a block diagram showing a configuration example of a navigation system 1 according to an embodiment of the present invention.

  The navigation system 1 includes a map book 11, an electronic pen 12, and a navigation main body 14 connected to the electronic pen 12 via a USB cable 13. The navigation system 1 is configured such that a user can set a starting point and a destination for a guide route search by pointing a certain position on the map book 11 using an electronic pen 12.

  The map book 11 is a book in which a sheet 21 on which a map and a dot pattern are superimposed and printed is bound.

  The electronic pen 12 stores data indicating the position on the paper surface of the paper 21 pointed to by the pen shaft 51 in the built-in memory 55 (FIG. 3) and supplies the data to the navigation body 14 as appropriate.

  The electronic pen 12 also deletes data stored in the memory 55 in accordance with the tilt of the electronic pen 12 as will be described later. That is, the user can delete the data stored in the electronic pen 12 only by tilting the electronic pen 12.

  Based on the data supplied from the electronic pen 12, the navigation main body 14 determines route search conditions such as a departure point and a destination of the guide route, and searches the guide route based on the search condition. The navigation body 14 presents the search result and executes a guidance process for guiding the presented guidance route.

  FIG. 2 is a diagram illustrating an example of the map book 11. In FIG. 2, the paper 21 covering two pages is shown in a spread state.

  A map is printed in the map area 31 of the paper 21.

  The command setting area 32 of the paper 21 includes a departure point mark 41-1, a destination mark 41-2, a stop point mark 41-3, a passage route mark 41-4, and a deletion lock mark 41-5 (hereinafter referred to as individual items). When there is no need to distinguish between the two, it is referred to as a command mark 41). In the example of FIG. 2, the command mark 41 is a rectangular mark with characters such as “departure location”.

  In the map area 31 and the command setting area 32 of the paper 21, a dot pattern that can be read by the electronic pen 12 is superimposed and printed. The dot pattern is a plurality of dot arrangement patterns (for example, combinations of deviations of 6 × 6 dots with respect to a predetermined reference position). The dot arrangement patterns correspond to the XY coordinate values on the paper surface of the paper 21. ing. Accordingly, the electronic pen 12 can decode a dot pattern indicated by the pen shaft 51 (for example, a combination of deviations of 6 × 6 dots with respect to the reference position) and obtain XY coordinate values on the paper surface of the paper 21.

  The dots constituting the dot pattern are printed on the surface of the paper 21 by ink that absorbs infrared rays, and the map is printed by ink that transmits infrared rays. Therefore, the electronic pen 12 can irradiate infrared rays and decode the dot pattern based on the intensity distribution of the reflected infrared rays.

  FIG. 3 is a block diagram illustrating an internal configuration example of the electronic pen 12.

  In this example, the electronic pen 12 includes a pen shaft 51, a pen pressure sensor 52, an infrared LED (Light Emitting Diode) 53, a CMOS (Complementary Metal Oxide Semiconductor) sensor 54, a memory 55, an inclination angle sensor 56, a timer 57, and a deletion switch 58. , A speaker 59, an LCD (Liquid Crystal Display) 60, a communication unit 61, a microcomputer 62, and the like. Each of these parts is stored in an elongated bar-shaped housing 71 (FIG. 1).

  The pen shaft 51 protrudes from one end portion of the housing 71.

  The pen pressure sensor 52 detects the pen pressure acting on the pen shaft 51. The pen pressure sensor 52 outputs the detected pen pressure value to the microcomputer 62.

  The infrared LED 53 and the CMOS sensor 54 are disposed around the position where the pen shaft 51 is disposed at one end of the housing 71. When the tip of the pen shaft 51 touches the paper surface under the control of the microcomputer 62, the infrared LED 53 irradiates the contact part and the surrounding part with infrared light.

  The CMOS sensor 54 receives infrared rays reflected by the contact portion and the surrounding portion on the paper surface. The CMOS sensor 54 outputs the received infrared intensity distribution data to the microcomputer 62.

  The memory 55 is configured by a flash memory or the like, and stores or deletes data supplied from the microcomputer 62.

  The tilt angle sensor 56 supplies a sensor signal corresponding to the tilt of the electronic pen 12 to the microcomputer 62.

  The timer 57 generates time information and outputs it to the microcomputer 62.

  The deletion switch 58 is disposed in the housing 71 (FIG. 1), and outputs a signal corresponding to an operation by the user to the microcomputer 62.

  The speaker 59 outputs sound corresponding to the sound signal supplied from the microcomputer 62.

  The LCD 60 displays an image corresponding to the image signal supplied from the microcomputer 62.

  The communication unit 61 transmits the data stored in the memory 55 to a device connected to the communication unit 61 via the USB cable 13. In this example, it is transmitted to the navigation main body 14. In this example, the electronic pen 12 and the navigation main body 14 (the communication unit 61) communicate with each other via the USB cable 13. However, wireless communication can also be performed.

  The microcomputer 62 includes a memory, a CPU (Central Processing Unit), an input / output port, and the like (not shown). The communication unit 61 and the like are connected to the input / output port from the pen pressure sensor 52. The CPU of the microcomputer 62 reads and executes a control program (not shown) from a memory or the like.

  Note that all the units shown in FIG. 3 are not necessarily required, and for example, the LCD 60 may be omitted.

  FIG. 4 is a block diagram showing a functional configuration example of the microcomputer 62 realized by the CPU of the microcomputer 62 executing the read control program. In the example of FIG. 4, a data storage unit 81, a data processing unit 82, and a data deletion unit 83 are realized.

  The data storage unit 81 in the microcomputer 62 decodes the dot pattern of the map area 31 of the paper 21 imaged by the CMOS sensor 54, and the data indicating the coordinate values read as a result (hereinafter referred to as point data), The type of point data, the date and time when the point data was stored, the amount of data, and information indicating that deletion of the point data is not permitted are associated with each other and stored in the memory 55.

  5 and 6 are diagrams showing examples of the structure of data stored in the memory 55. FIG.

  For example, the user checks the stop point mark 41-3 using the electronic pen 12, checks the deletion lock mark 41-5, and the position in the map area 31 (for example, the facility on the map to be set as the stop point) The position where there is) shall be checked.

  In this case, it is determined that the coordinate value of the first checked position is in the stop point mark 41-3, and the coordinate value of the next checked position is in the deletion lock mark 41-5. Then, it is determined that the coordinate value of the next checked position is within the map area 31. When the check position is determined in this way, the coordinate value of the check position in the map area 31 (in this example, the coordinate value of the trajectory on which the check point is drawn) is stored in association with the storage date and time ( FIG. 5). A group of coordinate values for one trajectory is used as point data, and a data ID is assigned. The data ID (for example, 1), storage date / time (in this example, the first storage date / time of the coordinate value of the trajectory), point Information indicating that the data is a stop point data, that deletion is not permitted, and the number of plots (eg, 350) of the point data are associated with each other and stored in the memory 55 (FIG. 6).

  That is, in the “data type” column of FIG. 6, it is set according to the operation of the departure point mark 41-1 to the passing route mark 41-4, and the point data includes the departure point, destination, Information indicating that the data is related to the stop point or the passing route is stored.

  Further, in the “deletion lock” column, information indicating that deletion set according to the selection of the deletion lock mark 41-5 is not permitted is stored. In the example of FIG. 6, a white circle means that information indicating that deletion is not permitted is stored.

  The number of plots is, for example, the number of coordinate values of the trajectory in which the point is drawn, and represents the data amount of the point data.

  Returning to FIG. 4, the data processing unit 82 appropriately stores the point data stored in the memory 55 by the data storage unit 81 and the data associated therewith (hereinafter referred to as the point data and the data associated therewith). (Collectively referred to as data) is transmitted to the navigation main body 14 via the communication unit 61.

  The data deleting unit 83 deletes the trajectory data stored in the memory 55 according to the tilt of the electronic pen 12, for example. In this example, the data deletion unit 83 includes a control unit 91 and a deletion processing unit 92.

  The control unit 91 determines the data deletion timing. For example, when the deletion switch 58 is turned on, the control unit 91 determines that it is the timing of data deletion, and notifies the deletion processing unit 92 of an instruction to delete the trajectory data.

  The deletion processing unit 92 deletes the trajectory data stored in the memory 55 in accordance with the inclination of the electronic pen 12 when a command to delete the trajectory data is notified from the control unit 91. In this example, the deletion processing unit 92 includes an inclination angle detection unit 101, a deletion data determination unit 102, and a processing unit 103.

  The inclination angle detection unit 101 detects an inclination angle (hereinafter referred to as an inclination angle R) used for data deletion of the electronic pen 12 based on the sensor signal input from the inclination angle sensor 56.

  FIG. 7 is a diagram for explaining the inclination angle R of the electronic pen 12. In the example of FIG. 7, the vertical direction is 0 degree, and the inclination from the vertical direction is the inclination angle R.

  For example, the tilt angle detection unit 101 is in a predetermined time (for example, 3 seconds) from when the command to delete the trajectory data is notified from the control unit 91 (for example, from when the deletion switch 58 is turned on). The average value of the tilt angles indicated by the sensor signal from the tilt angle sensor 56 is calculated, and the tilt angle obtained as a result of the calculation is defined as the tilt angle R.

  Further, the inclination angle detection unit 101 may set the maximum inclination angle indicated by the sensor signal from the inclination angle sensor 56 for a predetermined time (for example, 3 seconds) from when the deletion switch 58 is turned on as the inclination angle R. it can.

  The deletion data determination unit 102 determines trajectory data to be deleted according to the inclination angle R detected by the inclination angle detection unit 101. A method for determining the trajectory data to be deleted will be described later.

  The processing unit 103 executes a process of deleting the trajectory data determined by the deletion data determination unit 102 from the memory 55.

  FIG. 8 is a flowchart showing the flow of data deletion processing in the electronic pen 12.

  In step S1, the control unit 91 of the data deletion unit 83 waits until it is determined that it is time to delete the trajectory data, and determines that it is time to delete the trajectory data (for example, the deletion switch 58 is turned on). The deletion processing unit 92 is notified of a command to delete the trajectory data.

  Next, in step S <b> 2, the tilt angle detection unit 101 of the deletion processing unit 92 detects the tilt angle R used for data deletion based on the sensor signal from the tilt angle sensor 56. For example, as described above, the inclination angle R is the average value of the inclination angles indicated by the sensor signal from the inclination angle sensor 56 for a predetermined time after the instruction to delete the trajectory data is notified. In addition, the maximum inclination angle indicated by the sensor signal from the inclination angle sensor 56 in a predetermined time from when the command to delete the trajectory data is notified is the inclination angle R.

  In step S <b> 3, the deletion data determination unit 102 determines the trajectory data to be deleted according to the inclination angle R, and the processing unit 103 deletes the determined trajectory data from the memory 55.

  FIG. 9 is a diagram showing an outline of the data deletion process according to the inclination angle R. FIG. 10 is a diagram showing a range of the inclination angle R corresponding to the example of FIG. In the case of this example, when the inclination angle R is 0 degree or more and less than 60 degrees, the stored time is from the front (that is, from the oldest) one trajectory data (that is, one point data and corresponding to it) Attached data) is deleted. When the inclination angle R is 60 degrees or more and smaller than 150 degrees, the five pieces of trajectory data are deleted from the oldest order. When the inclination angle R is 150 degrees or more and smaller than 180 degrees, all stored trajectory data is deleted.

  Since the storage date / time is stored in association with the point data, the trajectory data to be deleted is appropriately specified and deleted based on the storage date / time.

  Thus, in this example, the storage date / time and the amount of trajectory data corresponding to the inclination angle R are deleted.

  FIG. 11 is a diagram showing an outline of another data deletion process according to the inclination angle R. FIG. 12 is a diagram illustrating the range of the inclination angle R corresponding to the example of FIG. 11 and the example of FIG. 13 described later. In the case of this example, when the inclination angle R is 0 degree or more and less than 60 degrees, the trajectory data of “starting place” and “destination” (that is, trajectory data whose data types are the starting place and the destination) Among them, the oldest trajectory data is deleted. When the inclination angle R is 60 degrees or more and smaller than 90 degrees, one of the oldest locus data is deleted from the locus data of “stop point”. When the inclination angle R is 90 degrees or more and smaller than 150 degrees, one of the oldest trajectory data is deleted from the trajectory data of “passing route”. When the inclination angle R is 150 degrees or more and smaller than 180 degrees, all stored trajectory data is deleted.

  Since the data type and the storage date / time are stored in association with the point data, the trajectory data to be deleted is specified and deleted based on the information.

  Thus, in the case of this example, the trajectory data of a predetermined type, storage date and amount corresponding to the inclination angle R is deleted.

  FIG. 13 is a diagram showing an outline of another data deletion process according to the inclination angle R. It is a combination of the example of FIG. 9 and the example of FIG. In the case of this example, when the inclination angle R is 0 degree or more and less than 60 degrees, one oldest trajectory data is deleted regardless of the type of data (same as in the example of FIG. 9). When the inclination angle R is 60 degrees or more and less than 90 degrees, one of the oldest locus data is deleted from the “stop point” locus data, and when the inclination angle R is 90 degrees or more and less than 150 degrees, “ One of the oldest trajectory data is deleted from the trajectory data of “passing route” (same as in the example of FIG. 11). When the inclination angle R is 150 degrees or more and smaller than 180 degrees, all stored trajectory data is deleted (same as the example in FIGS. 9 and 11).

  In this way, the trajectory data to be deleted is determined according to the inclination angle R and deleted. In the description of FIGS. 9 to 13, the case where the information indicating that the deletion is not permitted is associated is not mentioned, but the case where the information indicating that the deletion is not permitted is associated (that is, When the deletion lock mark 41-5 is selected and the position of the map area 31 is checked), the trajectory data corresponding to the point data is not deleted.

  When all the trajectory data to be deleted is deleted from the memory 55, the process ends.

  As described above, since the trajectory data stored in the memory 55 is deleted according to the tilt of the electronic pen 12, the user can use the image on the electronic pen 12, for example, to spill liquid from the cup. The stored trajectory data can be deleted. That is, the trajectory data stored in the electronic pen 12 can be deleted intuitively and intuitively.

  In the above description, the deletion of the trajectory data is started when the deletion switch 58 is turned on. However, the timing for starting the data deletion can be determined by another method.

  For example, when the user checks the paper 21 with the electronic pen 12 and then releases the electronic pen 12 from the paper 21 and holds the electronic pen 12 at a predetermined angle (for example, vertical), the timing for starting data deletion is set. be able to. That is, thereafter, the tilt angle R of the electronic pen 12 is determined, and the trajectory data is deleted according to the tilt angle R. By doing so, it is not necessary to operate the deletion switch 58 and the like, so that data deletion can be started more easily. Further, in this method, data deletion is not executed while the electronic pen 12 is in contact with the paper 21 and the dot pattern is decoded, so that the trajectory data is erroneously deleted while the paper 21 is being checked. Can be prevented.

  Also, the timing for starting data deletion can be determined in combination with the movement of the electronic pen 12 and the on / off of the deletion switch 58 described above.

  In the example of FIG. 9 described above, the amount of data to be deleted is determined by the number of trajectory data (such as 1 or 5). For example, “30 minutes from the time when the oldest trajectory data was stored” Within the range of data to be deleted based on the time stored in the memory 55, such as the track data stored within 24 hours from the time when the oldest track data was stored. it can.

  In the example of FIG. 9, the amount of data to be deleted is fixed according to the inclination angle R, but the amount of data to be deleted can be varied using other elements.

  For example, when data of a predetermined capacity or less is stored in the memory 55, as shown in the example of FIG. 9, one, five, or all the trajectory data are deleted according to the inclination angle R. On the other hand, when more data than a predetermined capacity is stored, when the inclination angle R is 0 degree or more and less than 60 degrees, five pieces of trajectory data are deleted from the oldest order. When the inclination angle R is 60 degrees or more and smaller than 150 degrees, 10 pieces of trajectory data are deleted from the oldest order. When the inclination angle R is 150 degrees or more and smaller than 180 degrees, all stored trajectory data is deleted.

  That is, when a large amount of data is stored in the memory 55, more trajectory data is deleted even at the same inclination angle R than when a small amount of data is stored in the memory 55. For example, when a cup is tilted, generally when a lot of liquid is in the cup, more liquid spills than when there is only a little liquid, but with a sense close to that phenomenon, the memory The trajectory data can be deleted from 55.

  Further, for example, when the acceleration of the electronic pen 12 when the tilt angle R is obtained is detected and the acceleration is equal to or smaller than a predetermined magnitude (that is, when the electronic pen 12 is tilted slowly), the example shown in FIG. As described above, one, five, or all of the trajectory data is deleted according to the inclination angle R. On the other hand, when the acceleration of the electronic pen 12 is larger than a predetermined magnitude (that is, when the electronic pen 12 is suddenly tilted), when the inclination angle R is 0 degree or more and smaller than 60 degrees, five pieces of trajectory data from the oldest one Are deleted, and when the inclination angle R is 60 degrees or more and smaller than 150 degrees, 10 trajectory data are deleted from the oldest. When the inclination angle R is 150 degrees or more and smaller than 180 degrees, all stored trajectory data is deleted.

  That is, when the electronic pen 12 is tilted suddenly, more trajectory data is deleted at the same tilt angle R than when the electronic pen 12 is tilted slowly. For example, when the cup is tilted vigorously, generally more water spills than when the cup is tilted slowly, but the trajectory data can be deleted from the memory 55 with a sense close to such a phenomenon. it can.

  Further, for example, when the time when the electronic pen 12 is tilted at the tilt angle R is measured and the measurement time is equal to or shorter than a predetermined time, as shown in the example of FIG. Five or all trajectory data are deleted. On the other hand, when the measurement time is longer than the predetermined time (that is, when tilted for a longer time than the predetermined time), when the inclination angle R is 0 degree or more and smaller than 60 degrees, the five trace data are deleted from the oldest one. When the inclination angle R is 60 degrees or more and smaller than 150 degrees, 10 pieces of trajectory data are deleted from the oldest. When the inclination angle R is 150 degrees or more and smaller than 180 degrees, all stored trajectory data is deleted.

  That is, when the electronic pen 12 is continuously tilted, more trajectory data is deleted even at the same tilt angle R than when the tilt is returned directly. For example, if you continue to tilt a cup containing liquid, the water will continue to spill, so more water will spill compared to when the cup is tilted and returned straight, but with a sense close to such a phenomenon, from the memory 55 The trajectory data can be deleted.

  When the amount of trajectory data corresponding to the tilt angle R is deleted in this way, even if the same tilt angle R is deleted, it is deleted according to the amount of data stored in the memory 55 or the way the electronic pen 12 is tilted. The amount of data to be changed can be changed.

  In the example of FIG. 11 described above, the type of trajectory data to be deleted differs according to the inclination angle R, but the amount of data to be deleted is fixed. Therefore, for example, the electronic pen 12 can have a character recognition function so that the amount of data to be deleted can be designated.

  For example, the user draws the character “5” on the paper 21 using the electronic pen 12, and then tilts the electronic pen 12 so that the inclination angle R is in the range of 60 degrees or more and less than 90 degrees. And In this case, in the example of FIG. 11, five pieces of locus data of the “stop point” are deleted from the oldest.

  In the case of the example in FIG. 11, the trajectory data to be deleted has been deleted in order from the oldest (that is, the priority order to be deleted is fixed), but the priority order is, for example, that of the electronic pen 12. It can be changed according to the movement.

  For example, when the user stands up and shakes the electronic pen 12 in a vertical direction at a predetermined timing, the priority is “delete from old data”, “delete from new data”, “from large data” according to the swing. “Delete” (from the trajectory data of the point data having the largest number of plots in the example of FIG. 6) and “Delete from the data of the point data having the smallest number of plots” (in the example of FIG. 6) The order can be changed.

  In the above description, the user recognizes the tilt angle R of the electronic pen 12 as if he / she tilted the electronic pen 12. However, for example, the tilt angle R of the electronic pen 12 may be displayed on the LCD 60. it can.

  FIG. 14 is a diagram illustrating a display example of the inclination angle R. In the example of FIG. 14, along with the inclination angle R, a progress bar 60A indicating how much data deletion according to the inclination angle R has been completed is also displayed.

  Further, instead of such a display, a protractor can be provided to indicate the inclination angle R of the electronic pen 12.

  If the inclination angle R is presented in this way, the user can accurately recognize the inclination angle R and can more accurately grasp the trajectory data to be deleted.

  In addition, in order to recognize the deletion of data more intuitively, a sound corresponding to the amount of data to be deleted is output, and the pitch of the sound to be output is changed according to the amount of data to be deleted. It can also be made. For example, a sound like dripping water can be output at a pitch according to the progress of data deletion.

  In the above description, the case where the trajectory data stored in the memory 55 built in the electronic pen 12 is deleted has been described as an example. For example, when the trajectory data is stored in the memory of the navigation main body 14, the electronic pen 12 is used. May notify the navigation main body 14 of information indicating the trajectory data to be deleted determined as described above, and deletion of the trajectory data may be performed in the navigation main body 14. Alternatively, only the inclination angle R may be transmitted to the navigation main body 14, and the navigation main body 14 may determine the trajectory data to be deleted according to the inclination angle R, and delete the trajectory data.

  In the above description, the electronic pen 12 used in the navigation system 1 has been described as an example, but the present invention can also be applied to an electronic pen used for other purposes.

  In the above description, the electronic pen 12 has been described as an example, but the present invention can be applied to other devices as long as data is stored in a memory such as a memory player.

It is a lineblock diagram showing a navigation system concerning an embodiment of the invention. It is a figure which shows the example of the paper of the map book of FIG. It is a figure which shows the example of the map printed on the paper of FIG. FIG. 4 is a block diagram illustrating a functional configuration example of the microcomputer of FIG. 3. It is a figure which shows the structural example of the data memorize | stored in the memory of FIG. It is a figure which shows the structural example of the other data memorize | stored in the memory of FIG. It is a figure explaining the inclination-angle of an electronic pen. It is a flowchart which shows the flow of a data deletion process. It is a figure which shows the example of the data deletion process according to the inclination-angle of an electronic pen. It is another figure explaining the inclination-angle of an electronic pen. It is a figure which shows the example of the other data deletion process according to the inclination-angle of an electronic pen. It is another figure explaining the inclination-angle of an electronic pen. It is a figure which shows the example of the other data deletion process according to the inclination-angle of an electronic pen. It is a figure which shows the example of a display of LCD of the electronic pen of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Navigation system, 11 Map book, 12 Electronic pen, 14 Navigation main body, 21 Paper, 31 Map area, 32 Command setting area, 41 Command mark, 51 Pen axis, 52 Pen pressure sensor, 53 Infrared LED, 54 COMS sensor, 55 Memory, 56 Tilt angle sensor, 57 Timer, 58 Deletion switch, 59 Speaker, 60 LCD, 61 Communication unit, 81 Data storage unit, 82 Data processing unit, 83 Data deletion unit, 91 Control unit, 92 Deletion processing unit, 101 Tilt Corner detection unit, 102 deletion data determination unit, 103 processing unit

Claims (8)

In an information processing apparatus that processes data stored in a storage medium,
Detecting means for detecting an inclination angle of the information processing apparatus;
An information processing apparatus comprising: deletion means for deleting data stored in the storage medium in accordance with the detected inclination angle. The information processing apparatus according to claim 1, wherein the deleting unit deletes an amount of data corresponding to the detected inclination angle from the storage medium. In the storage medium, information indicating the type of data is stored in association with the data,
The information processing apparatus according to claim 1, wherein the deletion unit deletes data of a type corresponding to the detected inclination angle from the storage medium. The storage medium stores data associated with information indicating that deletion of data is not permitted,
The information processing apparatus according to claim 1, wherein the deletion unit restricts deletion of data when information indicating that deletion of data is not permitted is associated. There is an operation unit that is operated when starting to delete data,
The detection means detects an inclination angle of the information processing device when the operation unit is operated,
The information processing apparatus according to claim 1, wherein the deletion unit deletes data stored in the storage medium according to the detected inclination angle. It further comprises a specifying means for recognizing the drawn character image and specifying the amount of data to be deleted according to the recognized character image.
The information processing apparatus according to claim 1, wherein the deleting unit deletes data according to the detected inclination angle and the data amount specified by the specifying unit. In an information processing method of an information processing apparatus for processing data stored in a storage medium,
A detection step of detecting an inclination angle of the information processing apparatus;
A deletion step of deleting data stored in the storage medium in accordance with the detected inclination angle. A program for causing a computer to execute a process of deleting data stored in the storage medium of the information processing apparatus that processes data stored in the storage medium,
A detection step of detecting an inclination angle of the information processing apparatus;
A program causing a computer to execute a process including a deletion step of deleting data stored in the storage medium in accordance with a detected inclination angle.

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