JPH0756859A - Portable electronic equipment - Google Patents

Abstract

PURPOSE:To use a user memory with high efficiency by judging whether data are used or not by checking data display time after retrieval, storing the result in the data, erasing data with the low frequency of use and retrieving an ascending order/descending order based on the frequency. CONSTITUTION:A central processing unit(CPU) 11 is provided with an input/ output control part 111 for controlling inputs l outputs, arithmetic part 112 for executing arithmetic and work random access memory (work RAM) 113 for temporarily storing data and functioned as a use frequency check means and an erasing/retrieving means for controlling the portable electronic equipment. This use frequency check means judges whether the retrieved data are used or not by checking the data display time after the retrieval. Further, the erasing/retrieving means stores the judged result of the use frequency check means in the data, simultaneously erases the data with the low frequency of use and retrieves the ascending order/descending order based on the frequency to use the data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electronic device capable of storing data such as an electronic notebook / electronic memo.

[0002]

2. Description of the Related Art In a conventional portable electronic device such as an electronic notebook / electronic memo, there are an all-mode erasing function and a secret data erasing function as a batch erasing function of data.
Also, the data retrieval method is alphabetical, alphabetical order (phone book data), time order (schedule data)
There are calls, searches by initials, and searches by keywords.

[0003]

However, since the schedule data batch delete function of the conventional portable electronic device described above deletes all the data in the mode, it is possible to delete a plurality of data at once and reduce the remaining memory capacity. There was a problem that data that you do not want to delete is deleted when you want to increase it.

Further, since the conventional portable electronic device does not have a search function based on the frequency of use, it is necessary to purposefully perform a procedure such as a narrow-down search using keywords in order to display the data used at a high frequency. There was a problem.

An object of the present invention is to provide a portable electronic device in which a user memory can be used with high efficiency in view of the above problems in the conventional portable electronic device.

[0006]

It is an object of the present invention to use frequency check means for determining whether or not the searched data is used by checking the data display time after the search, and the use frequency check. This is achieved by a portable electronic device comprising means for storing the determination result of the means in data to collectively delete infrequently used data and searching for ascending / descending order according to the frequency with which the data is used.

[0007]

In the portable electronic device of the present invention, the frequency of use checking means determines whether or not the retrieved data has been used by checking the data display time after the retrieval, and the deleting / retrieving means uses the frequency of use. The judgment result by the checking means is stored in the data to delete the less frequently used data collectively, and the ascending / descending order is searched according to the frequency of the data used.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a portable electronic device of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of a portable electronic device of the present invention.

The portable electronic device shown in FIG. 1 is connected to a central processing unit (CPU) 11 and a CPU 11 which are a frequency checking means and a deleting / retrieving means for controlling the portable electronic device to operate the portable electronic device. Read only memory (ROM) 12 for storing various programs and various font data, and a flag, a register, and a user which are connected to the CPU 11 and are used for controlling a portable electronic device or a data memory and used for controlling a portable electronic device. A random access memory (RAM) 13 used for a storage area of data such as a telephone book input by the user, an LCD drive circuit 14 connected to the CPU 11 and controlling the drive of a liquid crystal display device (LCD), an LCD drive circuit 14 Connected to the LCD display unit 15 for performing various displays, CPU 1
1, a KEY matrix 16 for detecting a key (KEY) input, and a real-time clock (RTC) 1 for clock counting which is connected to the CPU 11 and teaches the CPU 11 time data or the like by interruption.
It is composed of 7.

The CPU 11 has an input / output control unit 111 and an input / output control unit 11 which control the input and output of the CPU 11.
An arithmetic unit 11 that is connected to 1 and executes various arithmetic operations
2. A work / random access memory (work RAM) 113, which is connected to the arithmetic unit 112 and temporarily stores data in order to execute a desired process, is provided.

FIG. 2 is an external view of a portable electronic device having the configuration of FIG.

As shown in FIG. 2, the portable electronic device of the present embodiment has a liquid crystal display section (LCD display section) composed of a dot matrix having a display of 14 columns and 3 lines (42 character sentences).
1, indicating a key input section, numeral keys 2a for inputting numbers 0 to 9, alphabet input keys 2b for inputting alphabets A to Z, mode selection keys 2c for selecting modes such as schedule and calendar, Keys including a cursor movement key 2d for moving the cursor such as ∧, a data recall key 2e represented by ∧ and ∨, and a frequency order search key 2f for performing an ascending / descending search for the frequency with which the data is used. It is composed of two.

Next, referring to FIGS. 3 to 8, the memories (ROM 12, RAM 13, work RAM 11) shown in FIG. 1 will be described.
The contents of 3) will be described in detail.

First, the RAM 13 will be described with reference to FIG.

Reference numeral a indicates an area for system management of this embodiment, which is used for various controls.

Reference numeral b indicates a data storage area for the user, which is divided for each mode such as telephone directory / memo / schedule.

For telephone directory data, as shown in FIG.
The data length (d-2) / reference count (d-3) / name (d-4) / telephone number (d-5) of the data partitioned by the header (d-1) and the delimiter code (d-7) ) / Address (d-6) inside, it is composed of one data collection.

Similarly, in the memo mode, as shown in FIG. 5, the header (e-1), the data length (e-2), the reference count (e-3), and the content (e-4) are internally stored. It is composed of a collection of one data held in.

In the schedule mode, as shown in FIG. 6, a header (f-1) and a delimiter code (f-
7) The data length (f-
2) / reference count (f-3) / scheduled time (f-4) / scheduled content (f-5).

Next, the work RAM 113 in the CPU 11 will be described with reference to FIG.

TIMER1 indicated by reference numeral h
Is a timer which is set at the time when the data is once retrieved, and is sequentially subtracted while the data is being displayed, and when it becomes 0, it is judged that the currently displayed data is referred to. In addition to this example, it is also possible to detect a data reference by making a call using a dialer or by checking the reference by manual input. (In this case, this timer is unnecessary) PTR1 indicated by reference numeral i is a pointer for indicating the data being displayed. Use the pointer by pointing to the data you want to display.

MAX_REF indicated by reference numeral j
Is a register for storing the maximum reference count in the data stored in the current mode when performing a search in the order of frequency of use.

N_BUF, indicated by reference numeral k, is
This is a register for storing how many times the frequency of use is currently searched when performing the use frequency order search.

Reference numeral w, which is denoted by w, is a work register for passing a value to a subroutine or the like.

A breakdown of the data in the ROM 12 will be described with reference to FIG.

Reference numeral 1 indicates a storage area for storing a program for operating the portable electronic device.

Reference numeral m indicates a font storage area for displaying various characters. Reference numeral n indicates a table of various data used to assist the program operation.

Next, this embodiment will be described in detail with reference to FIGS. 4 to 15.

At 91, the power is turned on by pressing the on key to shift to the telephone directory mode. Each data in the phonebook mode is in the order of the character code of the name (an, AZ,
0 to 9) are sorted and stored, and in 92,
The top data of the phone book is called.

Similarly, after calling the data 93, 94 and 95 and searching for the last data 95 in this embodiment, when the calling key is further pressed, the screen returns to the initial screen as shown at 101 in FIG. Here, it is assumed that the four data items that have been input for the sake of simplification of description have not been used even once since they were input.

Next, the data of "BBB" is searched at 102, and as shown at 103, the data is displayed for a while and left for 1 minute by making a call or the like. Then, in the present embodiment, the criterion for judging that the data has been used is 1 minute, so that the data reference number counter at the upper right of the display section changes from 0 to 1 and it is shown that the data “BBB” has been used once. Be done. The criteria for using data here is 1
It doesn't have to be minutes.

When the reference count is incremented only once, as shown at 104, the reference count does not increase even if it is left for 1 minute continuously. If the search is performed again and displayed again, such as 105 and 111 in FIG. 11, the number of references increases.

Similarly, 112 and 113 in FIG. 11 represent a state in which the data "CCC" is referenced once.

In this state, returning to the initial display ("name?") As shown at 114 and pressing the order key which is often used, as shown at 115, the most frequently used data "BBB" among the input data is displayed. Is searched first.

When the same key is pressed further, 1 in FIG.
21, as shown in FIG.
"C" is searched, and the least frequently used data "AAA" shown in 122 and "DDD" shown in 123 are searched last.

On the contrary, 124 to 134 in FIG. 13 are an example in which the searches are performed in the order in which they are not used.
An example is shown in which the data retrieval is performed in the opposite priority order with respect to the usage frequencies of 21 to 123.

Next, an example of deleting data in the order of reference frequency is shown in FIG.
3 from 135 to 145 in FIG.

First, when the special function key is pressed in 135 of FIG. 13, a special function menu is displayed, and the data erasing function is selected in 141 of FIG. 14 and the data erasing function in the order of frequency of use is selected in 142.

Then, in 143, the reference number of data references to be erased is set, the final confirmation is made on the confirmation screen in 144, and then the data of the reference number less than that is collectively deleted based on the set number in 143. (In this example, the data is deleted less than once, that is, the data that has never been used once is collectively deleted).

As a result, in this embodiment, 151 of FIG.
Data referred to more than once as indicated by 152 (“BB
It is confirmed that "B" and "CCC") remain without being erased.

In the present embodiment, an example of data deletion in the order of low reference frequency is shown, but it is also possible to realize data deletion in order of high reference frequency or by direct designation of reference frequency.

16 to 21a to 21c are flow charts for explaining the operation of this embodiment.

First, the processing for checking the frequency of use will be described with reference to the flowchart of FIG.

In this embodiment, the interrupt signal output from the RTC chip (see RTC 17 in FIG. 1) every second is used for cursor processing and the like. Therefore, in the present embodiment, the interruption signal is used to detect that the data is left unattended during the data search, and the number of times of referring to the data is counted up.

First, it is determined whether the set is on (ON) or off (OFF) (step L0), and if it is determined to be OFF in step L0, no particular process is performed. On the other hand, if it is determined to be ON in step L0, the process proceeds to step L1.

When the cursor is present, the cursor blinking process is performed (step L1), and then the time counting process for the auto power-off function (it is automatically turned off if the set is left for several minutes) is performed. (Step L2).

Whether or not it is currently being searched for data is judged (step L3), and if not being searched for data (if data is being input / edited, etc.), the processing is ended.

If it is determined in step L3 that the data search is in progress, the reference count check timer TI
It is determined whether the value of MER1 is 0 (step L4). If TIMER1 = 0 in step L4, this data has already been referred to, so the process ends.
On the other hand, if TIMER1 is not 0 in step L4, TIMER1 is subtracted by 1 (second) (step L
5). Then, it is determined whether TIMER1 has become 0 by subtracting L5 (step L6), and the above step L
If TIMER1 = 0 in 6, it is assumed that the data currently displayed is referred to, and 1 is added to the reference count of the data currently displayed (pointed by PTR1) (step L
7). With the above processing, the reference count can be checked. However, as described above, the reference frequency check can be realized by other methods.

Next, the processing for setting the timer shown in FIG. 16 will be described with reference to the flowchart shown in FIG.

Here, TIMER1 is set to 60 seconds and initialized (step N1). By this processing, TIMER1 is initialized every time data is searched, and the count shown in FIG. 16 is prepared.

FIG. 18 shows a process for retrieving the data stored next to the first record (pointing PTR1).

This process is a subroutine that causes the PTR 1 to point to the next data during data retrieval, and is used in each of the following processes.

First, the type of the search key is discriminated (step S1). If the reverse search key is selected in step S1, the process proceeds to step S2. If the forward search, the frequently used sequence, or the unused sequence key, the process proceeds to step S3.

Because of the backward search, the PTR1 is made to point to the data one item before which the current PTR1 points (step S).
2).

For the forward search, the PTR1 is made to point to the data one item after the current PTR1 (step S).
3).

With reference to the flow chart of FIG. 19, a process of searching / displaying data having the reference count N times will be described.

This is a process for displaying the data referred to N times in the current mode, and this process is also a subroutine.

When this subroutine is used, it is always during the frequency-of-use order search, and therefore, the key input condition of step S4 is only the order of frequently used keys or not used.

First, one data search is performed (step S4), and it is judged whether the number of times the data pointed to by PTR1 is referred to is N times (step S5).
If it is determined that the number of times the data pointed to by PTR1 is referred to is N, the process ends. On the other hand, if it is determined in step S5 that the number of times the data pointed to by PTR1 is referred to is not N, it is determined whether all the data in the current mode have been checked (step S6). As a result, if all the data in the current mode have not been checked (PTR1 ≦ last address in the current mode), the process returns to step S5, and the reference count check is continued. On the other hand, if it is determined in step S6 that all the data in the current mode are checked (PTR1> the last address in the current mode), the process ends.

Next, with reference to the flowchart of FIG. 20, a process for collectively deleting data whose reference count is N or less will be described.

First, the address of the leading data of the current mode is set in PTR1 and a key is set as an input condition in step R4 described later (step R1).

The number of times the data currently pointed to by PTR1 is referred to is determined (step R2), and PT is executed at step R2.
If it is determined that the number of times the data pointed to by R1 is referenced is N or less, the data is deleted (step R
3). At step R3, one item of data pointed to by PTR1 is deleted, and the process proceeds to step R5 described later. On the other hand, if it is determined in step R2 that the reference count of the data pointed to by PTR1 exceeds N, the reference count of the next data is checked (step R4). In step R4, one data item is searched in the forward direction, and the process proceeds to step R5 described later.

It is judged whether or not this process is finished (step R
5) If it is determined in step R5 that PTR1 is PTR1 ≦ last address of the current mode, the process returns to step R2 to continue checking the reference count.
On the other hand, if it is determined in step R5 that PTR1> the last address in the current mode, the initial screen is displayed (step R6), and the process ends.

Next, referring to the flow charts of FIGS. 21a to 21c, the process of the data usage frequency order search (when frequently used data is preferentially called and when not normally used data is preferentially called) Will be explained.

First, the current state is judged (step P
0), if data is being input / corrected in step P0, the processing is terminated without doing anything.

If it is determined in step P0 that the frequency-of-use order search is not currently being executed and data input / correction is not in progress, steps P1 to P
After initializing the use frequency order search in 9, the search procedure from step P10 is executed.

On the other hand, if it is determined in step P0 that the retrieval is currently in use frequency order, step P
After proceeding to step 19, pre-processing (step P19 to step P24) of continuous use frequency order search is carried out, and then the search processing of step P10 and thereafter is carried out.

Here, the above steps will be described in detail.

In steps P1 to P6, the maximum reference count (MAX_REF) of all data in the mode is set.

First, the start address of the current mode is set in PTR1 (step P1), 0 is assigned to the MAX_REF register (step P2), one data item is searched in the forward direction (step P3), and PTR1 and the current mode are set. The last address of is compared (step P4). Step P above
If the result of comparison in 4 is PTR1 ≦ last address of current mode, the operation proceeds to step P5, which will be described later. On the other hand, if the result of comparison in step P4 is PTR1> last address of current mode, operation proceeds to step P7. .

Then, the value stored in MAX_REF is compared with the reference count of the current search data (the data pointed to by PTR1) (step P5), and MA is determined in step P5.
If it is determined that X_REF ≧ reference count of the current search data, the process returns to step P3. On the other hand, if it is determined that MAX_REF <reference count of the current search data in the step P5, the current MAX_REF is determined. The reference number of the search data is substituted (step P6), and the process returns to step P3.

As described above, by repeating steps P3 to P6, the value of MAX_REF at the time of exiting step P7 is the maximum number of times of reference in the current mode data.

Here, it is judged whether or not it is a frequently used order search (step P7), and if it is judged at the above step P7 that it is a frequently used order search, 0 is substituted into N_BUF (step P8), On the other hand, if it is determined in step P7 that the search is not used, the value of MAX_REF is substituted into N_BUF (set of initial value of N_BUF) (step P9). After the steps P8 and P9, the start address of the current mode is set in PTR1 (step P10), N_BUF is substituted for N, and the value of N used in step P13 described later is set (step P11), and PTR1 is set. The number of times the data pointed to by is referred to is checked (step P12). The determination in step P12 is necessary when the number of times the head data of the current mode is referred to is N times.

In step P12, if the number of times the data pointed to by PTR1 is referred to = N times, the data pointed to by PTR1 is displayed (step P14). On the other hand, the above step P1
If the reference number of the data pointed to by PTR1 in 2 is ≠ N times, then N
The data search routine referred to once is called (step P13). In step P13, a data search referred to N times is performed.

PTR1> It is judged whether the address is the last address in the current mode (step P15), and the above step P
If the data referred to N times in 15 is retrieved, that is, PT
If R1 ≦ last address of current mode, PTR1
The data pointed to by is displayed (step P16), and the process ends.

On the other hand, if it is determined in step P15 that PTR1> the last address in the current mode, that is, if the data referred to N times is not retrieved, the process proceeds to step P19.

Next, steps P19 to P24
Pre-processing when performing a continuous frequency-ordered search will be described.

First, the type of frequency-of-use order search is determined (step P19), and if it is determined in step P19 that the search is frequently used, then N_BUF minus 1 is set as N_BUF (step P23). As a result of the step P23, it is determined whether or not N_BUF has become negative (step P24). If it is determined that the value is negative in step P24, the process proceeds to step P17 and ends the processing.

On the other hand, in step P24, N_B
If it is determined that the UF is 0 or positive, the process proceeds to step P10 to continuously search.

If it is determined in step P19 that the search is an unused order search, 1 is added to N_BUF to set N_BUF (step P20), and the value of N_BUF obtained in step P20 is set. MAX_REF
Are compared (step P21), and the above step P2
If it is determined that N_BUF> MAX_REF in step 1, the search in the reference frequency order is released (step P17), and the initial screen of the current mode is displayed (step P17).
18) Finish the process.

On the other hand, in step P21, N_BUF
If it is determined that ≤MAX_REF, the process proceeds to step P10 to continuously search.

By the above search processing, it is possible to perform data search in the frequency order as shown in FIGS. 9 to 15.

[0084]

The portable electronic device of the present invention comprises a usage frequency check means for checking whether or not the searched data is used by checking the data display time after the search, and a usage frequency check means. Since the judgment result is stored in the data, the less frequently used data is deleted in a batch, and the ascending / descending order is searched according to the frequency with which the data is used, it is frequently used when deleting data depending on the frequency. Saves only the data that is saved improves usability, and saves only the frequently used data to improve memory usage efficiency. When user memory is insufficient, unnecessary data is added one by one. You can save the trouble of deleting while searching. In addition, when searching for data that depends on frequency, frequently used data will be preferentially searched to improve usability, and if infrequently used data is preferentially searched, it can be used as a memorandum. The frequency of data usage can be confirmed by simultaneously displaying the number of data references at the time of retrieval.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a portable electronic device of the present invention.

FIG. 2 is an external view showing the external appearance of the mobile electronic device of FIG.

FIG. 3 is an explanatory diagram of a configuration example of a RAM shown in FIG.

FIG. 4 is an explanatory diagram of a structure of telephone length 1 data in the RAM of FIG.

5 is an explanatory diagram of a structure of memo 1 data in the RAM of FIG.

6 is an explanatory diagram of a structure of schedule 1 data in the RAM of FIG.

7 is an explanatory diagram of a configuration example of a work RAM in the CPU of FIG.

8 is an explanatory diagram of a configuration example of the ROM of FIG.

9 is an operation explanatory diagram of the portable electronic device of FIG. 1. FIG.

1. FIG. 10 is an operation explanatory diagram of the mobile electronic device of FIG.

11 is an operation explanatory diagram of the mobile electronic device of FIG. 1. FIG.

FIG. 12 is an operation explanatory diagram of the portable electronic device of FIG. 1.

FIG. 13 is an operation explanatory diagram of the portable electronic device of FIG. 1.

14 is an operation explanatory diagram of the mobile electronic device of FIG. 1. FIG.

15 is an operation explanatory diagram of the mobile electronic device of FIG. 1. FIG.

16 is a flowchart for explaining the operation of the mobile electronic device of FIG.

17 is a flow chart for explaining the operation of the mobile electronic device of FIG.

FIG. 18 is a flowchart for explaining the operation of the mobile electronic device of FIG.

19 is a flowchart for explaining the operation of the mobile electronic device of FIG.

20 is a flowchart for explaining the operation of the mobile electronic device of FIG.

21a is a part of a flowchart for explaining the operation of the mobile electronic device of FIG. 1. FIG.

FIG. 21b is a part of a flowchart for explaining the operation of the mobile electronic device of FIG. 1.

FIG. 21c is a part of a flowchart for explaining the operation of the mobile electronic device of FIG. 1.

[Explanation of symbols]

 11 central processing unit (CPU) 12 ROM 13 RAM 14 LCD drive circuit 15 LCD 16 KEY 17 RTC 111 input / output control unit 112 arithmetic unit 113 work RAM

Claims (1)

[Claims] 1. A portable electronic device capable of storing data, such as an electronic notebook / electronic memo, which is used to determine whether or not the retrieved data has been used by checking the data display time after the retrieval. A frequency check unit, and a unit for storing the determination result of the use frequency check unit in the data to delete the less frequently used data at the same time, and for searching ascending / descending order according to the frequency with which the data is used. And portable electronic devices.