JP2000259314A - Unit and method for display control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust a display time according to the amount of data and to automate page changes at a proper speed by calculating the amount of data of a one-page display and calculating the transition time up to a display of a next page according to the amount of data. SOLUTION: A high-frequency data signal received by an antenna 1 is demodulated and processed by a radio part 2 and converted into a digital signal. A control part 3 extracts and detects information data from the demodulated digital signal and decides the kind of a character code, etc., as the acquired data and in a storage part 4, the address of a ROM 9 corresponding to the character code, etc., is referred to; and the corresponding font data 7n is called and expanded, and displayed as a character, etc., at a display part 5. The control part 3 finds the frequency N of reference for a one-page display of the ROM address by a counter 6 and calculates the amount Q of data for the one- page display from the frequency N of reference. Here, when a next page is present, a transition time X is calculated from the calculated amount Q of data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display control device and a display control method, and more particularly to a display control device and a display control method in which a transition time of page turning is appropriate for a user and effective for a portable terminal.

[0002]

2. Description of the Related Art Mobile terminals are increasing their communication data volume. Improvements in transmission speeds have enabled communication of larger amounts of data, but mobile terminals that have propositions unique to portable devices, such as lower power consumption and smaller size and lighter weight, are not compatible with LCDs that display data. The display unit cannot be so large, and it is difficult to utilize a large amount of data communication technology.

[0003] Despite the increase in the amount of transmitted data, the display capability of the terminal has not been improved. Taking the case where the data is an e-mail as an example, a character string that can be sufficiently displayed on one page on the display of a personal computer frequently reaches several pages on the display unit of the mobile terminal. . In such a case, it is necessary for the user to press the operation button many times in order to display the next page, and the user's operation amount may increase and the operability may deteriorate.

As a method of avoiding such deterioration in operability, it is conceivable to reduce or eliminate user operations by automatically switching to the next page after a certain period of time. Depending on the contents displayed on the page, the time for the user to read the contents of one page differs. When the display content of one page is occupied by many kanji, it takes a long time for the user to finish reading the page. Conversely, when there are many hiragana, katakana, and many blanks such as line breaks, According to the technology for performing a display transition after a certain period of time, the page is updated before the user finishes reading, and the time wasted before switching to the next page after the reading is completed. Inconsistency such as consumption occurs. When such an inconsistency occurs, the user is forced to perform an operation to return to the previous page in order to read again, an operation to perform an operation to proceed forward occurs, and an automatic page transition is performed instead of an automatic page transition. This will lead to an increase.

It is desired to automate page transition at an appropriate speed.
It is preferable that the data display amount of the mobile terminal can be dramatically increased by such automation.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a display control device and a display control method capable of automating a page transition at an appropriate speed. Another object of the present invention is to provide a display control device and a display control method that can dramatically increase the amount of data communication by such automation.

[0007]

Means for solving the problem are described as follows. The technical matters corresponding to the claims in the expression are appended with numbers, symbols, etc. in parentheses (). The number, the symbol, etc. are at least one of the technical matters corresponding to the claims and the plurality of embodiments.
Although the agreement / correspondence with the technical matters of the two forms is clarified, it is not intended to show that the technical matters corresponding to the claims are limited to the technical matters of the embodiment.

The display control method according to the present invention includes a first calculation step for calculating a data amount Q for one page display, and a transition time X until the next page is displayed based on the data amount Q. And a second calculation step. The display time is adjusted according to the amount of data to provide the user with an appropriate time width for reading. The present invention is particularly effective when applied to a portable device.

It is desirable that the calculation of the data amount Q is executed when the next page display portion exists. Since the data amount Q depends on the number of times of reference to the address storing the font data for displaying the data, the data processing is simplified. More preferably, a step for determining the type of data is added. In this case, the first calculation step includes a step of calculating a plurality of individual data amounts for each data type, and the data amount Q is a value obtained by adding the plurality of individual data amounts. Multiple and individual data volume
It is particularly preferable that each data is weighted according to its type. Kanji is weighted so that it has a greater value than it can.

A display control device according to the present invention includes a storage unit (4) storing font data (7n) and a control unit (4) for referring to a code of display target data in correspondence with the font data (7n). 3) and font data (7
n) a display unit (5) for displaying the display target data corresponding to n), a counter (6) for accumulating and calculating the number of times N referring to the font data (7n), and a display unit ( A calculator (8) for calculating the data amount Q of the display target data to be displayed in 5) and a determiner for determining a transition time until transition to the display of the next page based on the data amount Q. Become. The determiner can include this in the control unit (3). Furthermore, it is particularly preferable that the control unit (3) includes a discriminator for discriminating the type of the display target data, and the calculator (8) calculates the data amount by weighting each type.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Corresponding to the drawings, an embodiment of a display control device and a display control method according to the present invention is provided with a mobile terminal. The mobile terminal has the circuit shown in FIG. The circuit is provided with an antenna 1. The antenna 1 is connected to the radio unit 2. The radio unit 2 frequency-converts the high-frequency radio signal received by the antenna, removes the noise, and demodulates the received signal.

The radio unit 2 is connected to the control unit 3. The control unit 3 extracts and detects information data from the digital signal demodulated by the wireless unit 2. The control unit 3 is connected to the storage unit 4. The storage unit 4 stores font data 7n. The control unit 3 matches the character code indicated by the detected data with the font data 7n of the storage unit 4 and refers to it. The control unit 3 is connected to the display unit 5. The control unit 3 causes the display unit 5 to display characters, graphics, and the like (hereinafter, referred to as character strings) corresponding to the font data 7n in the storage unit 4.

The control unit 3 includes a counter 6 for accumulating and calculating the number N of times referring to the font data 7n, and a calculator 8 for calculating a display data amount Q to be displayed on the display unit 5. . The storage unit 4 includes a RAM (not shown) for storing received data, and a ROM 9 for storing font data.

The display unit 5 is an LCD for displaying a character string or the like indicated by the data decoded by the control unit 3, and the LCD
Is provided with an LCD driver (not shown) for operating the. The operation unit 11 is connected to the control unit 3. The operation unit 11 includes a navigation operation button 12 having a page scroll function of switching the display to a previous page or a next page when a character string or the like displayed on the display unit 5 extends over a plurality of pages. The power supply unit 13 can supply power to the above-described units.

The high-frequency data signal received by the antenna 1 is demodulated and processed by the radio unit 2 and converted into a digital signal. The digital signal contains information data to be displayed on the display unit 5, and the information data is converted into a character string or the like. The character string and the like are displayed on the display unit 5.

The page scroll method includes a manual / page scroll method and an automatic / page scroll method. FIG. 2 shows an automatic / page scroll method and a manual / page scroll method. The control unit 3 displays the first page on the activated display unit 5 (step S1). If there is no data other than the data displayed on the first page, that is, if there is no next page (N in step 2), the display of the currently displayed first page is continued (step S7).

If there is data for the next page (Y in step S2), the navigation operation button 1
By pressing 2 with a finger (step S3), data corresponding to the next page can be displayed on the display unit 5.
The navigation operation button 12 has a function of selecting the next page or the previous page.

When the navigation operation button 12 is not pressed, a timer (not shown) starts operating, and when a prescribed X seconds have elapsed (step S4), the control section 3 causes the next page display circuit of the control section 3 to operate. The next page is displayed on the display unit 5 by the next page scroll function (not shown) (step S6). A step S5 interposed between the steps S4 and S6 determines whether or not to make a transition to the next page depending on a user's selection of one of the two modes of whether or not the scroll is automated. This is a step for defining. The automatic scroll setting for automating or not scrolling will be described later.

FIG. 3 shows a method for determining a transition time X until a display screen is switched from one page to the next page. The control unit 3 that has acquired the data (step S1
1) The type of a code such as a character string (hereinafter, referred to as a character code or the like) as the acquired data is determined (step S12). The font data such as characters stored in the ROM 9 of the storage unit 4 have addresses corresponding to them.

When the control unit 3 determines the type of the character code or the like, it refers to the ROM address corresponding to the character code or the like (step S12), calls the corresponding font data 7n, and expands the data. It is displayed on the display unit 5 as characters or the like. At the time of the display, the control unit 3 counts the number of times N of referring to the ROM address such as the character code (step S13). The data amount Q for the one page display is calculated based on the reference count N for the one page (step S14). When the total data amount is only one page and there is no next page, the control unit 3 ends the processing (step S17), and shifts to, for example, step S2 in FIG. Continue displaying the page.

When the total data amount exceeds one page, that is,
When the next page exists (N in step S15), the transition time X is calculated based on the calculated data amount Q for one page display.
Is calculated (step S16), and the process ends (step S17). The calculated value is calculated in step S in FIG.
4 is substituted for X.

FIG. 4 shows a method of calculating the data amount Q for one page display. The control unit 3 refers to the ROM address such as the character code (step S21), and refers to the number
Is counted, it is determined whether the character or the like indicating the character or the like code is a two-byte character or the like or a one-byte character (step S).
22). The number of 2-byte characters is represented by A (the initial value is 0),
When the number of one-byte characters is represented by B (the initial value is 0), the frequency data is incremented each time one character is counted (steps S23 and S24): A: = A + 1, B: = B + 1. ... (1)

If one page of displayable data remains (Y in step S25) and the total data amount has not reached one page (N in step S26), step 2 is executed.
The calculation of the expression (1) of 3, 24 is repeated. If no displayable data remains, or if the data amount Q exceeds one page, the calculator 8 of the control unit 3 uses the values A and B at that time to calculate the individual total data for the one page. The quantity X '(A, B) is calculated by the following equation (2) (step S27): X' (A, B) = 2A + B. ... (2)

The transition time X to the next page is calculated by the following equation (3) based on the individual total data amount X '. X (seconds) = T * X ′. (3) Here, T is a unit scroll time (second). As shown in FIG. 5, the unit scroll time T is a variable setting constant, and is registered and stored in the storage unit 4 in advance.

When a function key of "auto scroll setting" (not shown, but provided on the operation unit 11) is pressed, the setting content is turned on, and the user operates the key to "fast". , "Normal", and "Slow" can be selected. Only the selected type is turned on in the storage unit 4. “Fast”, “Normal”, and “Slow” respectively correspond to the plural / unit scroll times T1, T2, and T3. Such plural / unit scroll times T1, T
2 and T3 are registered in the storage unit 4 as variable setting constants. The automatic scroll setting can be performed by operating the operation unit 11 without independently providing the function key of “auto scroll setting”.

FIG. 6 illustrates a plural / page transition. First page: A = 33, B = 4, X = 70T. Page 2: A = 22, B = 0, X = 44T. Page 3: A = 16, B = 0, X = 32T. Last page: A = 14, B = 0, X = 28T.

The first page has characters on the entire display screen and the time required for recognition is long, and the third page has little display content and the time required for recognition is short. The transition time 32T for transitioning from the third page to the last page is preferably shorter than half of the transition time 70T for transitioning from the first page to the first page. As described above, the transition time is shorter when the display amount is smaller than when the display amount is larger. When the first page and the third page are compared, they are reflected in the calculation result in a form synchronized with the display amount and the recognition time, and the display time is shortened. The individual difference of the synchronization is eliminated by selecting the setting constant.

FIG. 7 shows another embodiment of the automatic / page scrolling method according to the present invention. This embodiment shows a method for simplifying processing without distinguishing between 1 byte and 2 bytes when calculating the total data amount. The control unit 3 counts the number of times of referencing the ROM address such as the character code in the storage unit 4, and sets the counted value (the number of times of counting) to C (step S31). The transition time is defined by the following equation (4) (step S32): X = C * T. ... (4)

This simple processing method is effective when the display characters are fixed full-width or fixed half-width. As the steps, steps S22, S23, S24 in FIG. 4 are omitted, steps S22, S23, S24 in FIG. 4 are replaced with one step 31, and step S27 in FIG.
Has been replaced by

FIG. 8 shows still another embodiment of the automatic / page scrolling method according to the present invention. This embodiment is a method for weighting each type of data according to the type of display characters when calculating the total data amount.
The weighting is provided to distinguish the recognition time of the user by the display data. FIG. 9 illustrates the display data character type and the ROM storage for each type. ROM
ROM corresponding to addresses 0100H to 0FFFFH)
The stored data is classified into “half-width characters”, “hirakana”, “katakana”, “symbol”, “kanji”, and “image”.

The control unit 3 determines the type of the character or the like from the address which refers to the ROM address indicated by the character code or the like to the storage unit 4 (step S41). The reference counts of "half-width character", "hirakana", "katakana", "symbol", "kanji", and "image" are D, E,
F, G, H, and I, and their unique weighting constants are represented by d, e, f, g, h, and i, respectively. In steps S42, 43, 44, 45, 46, and 47, these variables are used. Is incremented, and the following equation (5) is obtained in step S48: X = (dD + eE + fF + gG + hH + iI) T. ... (5)

The weights d to i are set to a large value when the user requires a long time for the recognition, and set to a small value when the user does not require a long time for the recognition. The weights d to i are stored in the storage unit 4
, And those values are preferably variable setting constants set by the user. Such subdivision increases the processing time, but allows for a more accurate page break synchronized with the user's recognition time.

FIG. 10 shows still another embodiment of the automatic / page scrolling method according to the present invention. Step S51 is added and inserted between steps 14 and 15 in the steps of FIG. The data amount for one page display is stored in a cache memory (not shown) of the control unit 3 in step 51. Although the memory capacity for the storage increases, the calculation of the data amount at the time of redisplaying the once displayed page is omitted, and the entire processing time can be reduced. If the memory capacity is limited, it is preferable to set a limit of “only the previous page and the next page” on the total data amount to be stored.

[0034]

According to the display control apparatus and the display control method of the present invention, the page transition at an appropriate speed can be automated. Such automation can dramatically increase data traffic.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram showing an embodiment of a display control device according to the present invention.

FIG. 2 is an operation flowchart showing an embodiment of a display control method according to the present invention.

FIG. 3 is an operation flowchart showing another embodiment of the display control method according to the present invention.

FIG. 4 is an operation flowchart showing still another embodiment of the display control method according to the present invention.

FIG. 5 is a data correspondence table relating to automatic scrolling.

FIG. 6 is an operation flowchart showing still another embodiment of the display control method according to the present invention.

FIG. 7 is an operation flowchart showing still another embodiment of the display control method according to the present invention.

FIG. 8 is an operation flowchart showing still another embodiment of the display control method according to the present invention.

FIG. 9 is a data address correspondence table.

FIG. 10 is an operation flowchart showing still another embodiment of the display control method according to the present invention.

[Explanation of symbols]

 3 ... Control unit 4 ... Storage unit 5 ... Display unit 6 ... Counter 7n ... Font data 8 ... Calculator

Claims (7)

[Claims] 1. A first calculation step for calculating a data amount Q for one page display, and a second calculation step for calculating a transition time X until a next page is displayed based on the data amount Q. And a display control method. 2. The display control method according to claim 1, wherein the calculation of the data amount Q is performed when there is a next page to be displayed. 3. The display control method according to claim 1, wherein the data amount Q depends on the number of times of referring to an address storing font data for displaying data. 4. The method according to claim 1, further comprising a step of determining a type of data, wherein the first calculating step includes a step of calculating a plurality of individual data amounts for each type of the data, The display control method, wherein the data amount Q is a value obtained by adding the plurality of individual data amounts. 5. The display control method according to claim 4, wherein the plurality of individual data amounts are individually weighted according to types of the data. 6. A storage unit for storing font data, a control unit for referring to a code of display target data in accordance with the font data and referring to the display target data corresponding to the font data. And a counter for accumulating and calculating the number N of times the font data has been referred to, and a data amount Q of the display target data to be displayed on the display unit.
And a determiner for determining, based on the data amount Q, a transition time until transition to the display of the next page. 7. The control unit according to claim 6, wherein the control unit includes a discriminator for discriminating a type of the display target data, and the calculator calculates the data amount by assigning a weight to each type. A display control device characterized by the above-mentioned.