CN1332330C - A palm-sized device with zoom display function - Google Patents

Abstract

A palm-type device comprising: the display device is used for displaying a bit mapping image, the processor is electrically connected with the display device, the memory is connected with the processor, and the input panel is connected with the processor. The input panel comprises a plurality of keys for generating key signals and a zooming control device for generating zooming control signals. The processor enlarges or reduces the bit-mapped image according to the scaling control signal received from the scaling control means. The handheld device further comprises a pointing device for allowing a user to easily scroll the bitmap image.

Description

A handheld device with a zoom display function

technical field

The invention relates to a palm-type device, in particular to a palm-type device with a scaling display function.

Background technique

Currently, handheld devices equipped with display devices to display information, such as mobile phones and personal data assistants (personal data assistants, PDAs), can provide information such as pictures, graphs, charts, web pages, etc., in the form of bit-mapped images (bit -mapped image) format, while the bitmap image can be a static image (such as a digital picture) or a dynamic image (such as a computer report).

Referring to FIG. 1 , FIG. 1 is a schematic diagram of a prior art mobile phone 10 displaying a bitmap image 12 . The bitmap image 12 is displayed on a display device 14 . Because the display area of the display device 14 is too small, only a part of the bitmap image 12 can be displayed at the same time. Therefore, when the user wants to view the whole picture of the bitmap image 12 , the display screen of the display device 14 must be scrolled. However, if the area of the bitmap image 12 is too large, it will cause inconvenience to the user in operation. Therefore, assuming that the mobile phone 10 can reduce the bitmap image 12 displayed on the display device 14 and enable the display device 14 to display the complete bitmap image 12 at one time, the time spent by the user on scrolling the picture can be reduced.

Refer to Figure 2. FIG. 2 is a schematic diagram of a prior art personal data assistant 20 . Personal data assistant 20 can display graph 22 on display device 24 . The size of the graph 22 has been reduced by the PDA manufacturer so that the graph 22 can be completely displayed on the display device 24 . However, this means that the display device 14 must display a much smaller graph 22 with its very limited resolution, which may distort some of the content represented on the graph 22 and may therefore not be available to the user. Some information that can be obtained by looking at graph 22.

Generally speaking, larger bitmap images are helpful for viewing convenience, but will reduce the graphics area that can be displayed by the display device at the same time. On the contrary, selecting a smaller bitmap image may enable the display device to display more graphic areas at the same time, but may distort the bitmap image. Therefore, how to make a trade-off in the size of the bitmap image will be a problem that manufacturers of handheld devices must face.

At present, there are many methods to solve the above problems. For example, the most common method used by mobile phones and personal digital assistants is to provide a menu where the user can change the size of the bitmap image, allowing the user to change the size of the bitmap image. But using this method, the user must change the size of the bitmap image by operating complex menu operations, and the user must repeat the same operation every time he wants to change the size of the bitmap image, which will cause the user to operate on the contrary. inconvenience.

Contents of the invention

Therefore, it is an object of the present invention to provide a palm-sized device with a zoom display function, which includes a zoom control device dedicated to controlling the zoom display function. The zoom control can be coupled with a display program to allow the user to rapidly change the size of the displayed bitmap image. The user can use the control of the zoom control device to quickly zoom out (zoom out) the bitmap image to view the complete bitmap image, or quickly zoom in (zoom in) the bitmap image to view the details of the bitmap image .

In order to achieve the above object of the present invention, the present invention provides a palm-type device, which is characterized in that it includes: a display device for displaying bitmap images; a processor connected to the display device; a processor connected to the processing A memory connected to the processor, the memory comprising a display program for controlling the display device; an input panel connected to the processor, the input panel comprising a plurality of keys for generating key signals, and zooming a control device, the zoom control device generates a zoom control signal according to a user input; wherein the processor zooms in or out the bitmap image according to the zoom control signal received from the zoom control device.

Compared with the palm-type devices in the prior art, the advantage of the present invention is to provide a palm-type device with zoom display function. The palm device includes a zoom control for allowing the user to change the size of the bitmap image displayed on the display device of the palm device more quickly and easily. When the user zooms out of the bitmap image, it is easier to view the full picture of the bitmap image. When the user zooms in on the bitmap image, the bitmap image can be viewed more clearly. In addition; the handheld device of the present invention can also add a pointing device for scrolling the bitmap image. When the zoom control device is used in conjunction with the pointing device, the user's viewing speed can be further accelerated.

Description of drawings

In order to make those skilled in the art understand the present invention more easily, preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. The accompanying drawings in the manual are:

FIG. 1 is a schematic diagram of a prior art mobile phone displaying a bitmap image;

Fig. 2 is a schematic diagram of a personal data assistant in the prior art;

3 is a schematic diagram of a palm-type device according to a first embodiment of the present invention;

Fig. 4 is a functional block diagram of the handheld device of Fig. 3;

FIG. 5 is a schematic diagram of the palm-sized device of FIG. 3 after its scroll-up key is pressed down;

FIG. 6 is a schematic diagram of the palm-sized device in FIG. 3 after receiving a zoom-out signal;

FIG. 7 is a schematic diagram of the palm-sized device of FIG. 3 after receiving an amplified signal;

8 is a schematic diagram of a palm-type device according to a second embodiment of the present invention;

Fig. 9 is a functional block diagram of the handheld device of Fig. 8;

10 is a schematic diagram of the palm-sized device of FIG. 8 when zooming in on the chart in the upper left corner of the bitmap image;

11 is a schematic diagram of a palm-type device according to a third embodiment of the present invention;

FIG. 12 is a schematic diagram of a palm-type device according to a fourth embodiment of the present invention.

Detailed ways

Refer to Figure 3 and Figure 4. FIG. 3 is a schematic diagram of a palm-type device 30 according to the first embodiment of the present invention. FIG. 4 is a functional block diagram of the palm device 30 of FIG. 3 . The handheld device 30 includes a display device 34 , a processor 36 , a memory 38 connected to the processor 36 , and an input panel 40 also connected to the processor 36 . The display device 34 is used to display the bitmap image 32 . The display content of the bitmap image 32 displayed by the display device 34 is controlled by the processor 36 . In addition, the memory 38 includes a display program 37 for controlling the display processing flow of the processor 36 so that the bitmap image 32 can be displayed within the display range of the display device 34 .

The input panel 40 includes a plurality of keys 44 and a zoom control 48 . In this embodiment, the zoom control device 48 is a knob that can be rotated back and forth to generate a zoom control signal. The zoom control device 48 can be any kind of input device, such as a slider, two independent buttons or a bi-directional push button (bi-directional push button), which is used to allow the user to input the amplified signal and the reduced signal. In addition, these buttons can be used to generate other additional key signals, for example, they can be combined with the scroll up key 41 , the scroll down key 43 , the scroll left key 45 and the scroll right key 47 to generate scroll signals. The processor 36 executes related operation processes according to the zoom-in signal, the zoom-out signal and the key signal.

Refer to Figure 5. FIG. 5 is a schematic diagram of the palm-sized device 30 of FIG. 3 after its scroll-up key 41 is pressed down. The up scroll key 41 , down scroll key 43 , left scroll key 45 and right scroll key 47 respectively scroll the bitmap image 32 up, down, left and right. When the user presses the scroll keys 41 , 43 , 45 and 47 in four directions, the processor 36 causes the bitmap image 32 to be displaced in the corresponding direction on the display device 34 . The setting of the displacement size generated by the bitmap image 32 can be changed by the user, or it is built in the display program 37 and the user is not allowed to change it. The processor 36 will shift the bitmap image 32 according to the setting of the shift size. The size of the displacement can be set to a distance of one pixel at a time, or a height or width of a specific distance at a time. As shown in Figures 3 and 5, when the content of the display screen of the display device 34 is as shown in Figure 3, if the user presses the scroll key 41, the content of the display screen of the display device 34 will change to that shown in Figure 5 , the bitmap image 32 will move up and cause the processor 36 to re-render the bitmap image 32 on the display device 34 . Similarly, when the user presses the down scroll key 43, the left scroll key 45, and the right scroll key 47, the bitmap image 32 will also generate corresponding downward, left, and right bits respectively. The displacement of the mapped image.

The zoom control device 48 is a knob that can be rotated back and forth to generate a zoom control signal to provide a more convenient zoom function. When the knob 48 is rotated backward, a zoom out signal is generated to the processor 36 . When the processor 36 receives the reduction signal, it reduces the bitmap image 32 so that more parts of the bitmap image 32 are displayed on the display device 34 .

Refer to Figure 6. FIG. 6 is a schematic diagram of the palm-sized device 30 of FIG. 3 after receiving the zoom-out signal. When the knob 48 is rotated backward, the processor 36 will shrink the bitmap image 32 shown in FIG. 3 into the bitmap image 32 shown in FIG. 6 . In addition, the knob 48 can continue to be rotated backward, so that the processor 36 continues to zoom out the bitmap image 32 and display more parts of the bitmap image 32 on the display device 34 .

Refer to Figure 7. FIG. 7 is a schematic diagram of the palm-sized device 30 of FIG. 3 after receiving the amplified signal. The knob 48 can also be rotated forward to cause the processor 36 to enlarge the bitmap image 32 shown in FIG. 3 into the bitmap image 32 shown in FIG. 7 . The display program 37 will cut out the portion of the enlarged bitmap image 32 that exceeds the display range of the display device 34 and not display it.

When the processor 36 zooms the bitmap image 32 , the processor 36 must use a zoom point as a reference to select a part of the area of the bitmap image 32 and display it on the display device 34 . For the mobile phone 30 , this zoom point is the center point of the display device 34 . However, the zoom point of the present invention is not limited to the center point of the display device, but other positions on the display device may be used as the zoom point, and this part will be described in the second embodiment below.

Refer to FIGS. 8 to 10 . FIG. 8 is a schematic diagram of a palm-type device 50 according to a second embodiment of the present invention. FIG. 9 is a functional block diagram of the palm device 50 of FIG. 8 . FIG. 10 is a schematic diagram of the palm-sized device 50 of FIG. 8 when the chart 51 in the upper left corner of the bitmap image 52 is enlarged. Handheld device 50 is a personal data assistant. The personal data assistant 50 includes a display device 54 , a processor 56 , a memory 58 coupled to the processor 56 , and an input panel 60 also coupled to the processor 56 . The display device 54 is used to display the bitmap image 52 and the cursor 53 . The display content of the bitmap image 52 and the movement of the cursor 53 are controlled by the processor 56 . In addition, the memory 58 includes a display program 57 for controlling the display processing flow of the processor 56 so that the bitmap image 52 can be displayed within the display range of the display device 54 .

The input panel 60 includes a plurality of keys 64 , a zoom control 68 , and a pointer 69 . Like the mobile phone 30 in the first embodiment, the zoom control 68 of the personal data assistant 50 is a knob that can be turned back and forth to generate a zoom control signal. The knob 68 can be rotated backward to zoom out the bitmap image 52 and forward to zoom in on the bitmap image 52 . Likewise, the zoom control device 68 can be any input device, even a touch-sensitive area on the display device 54 , and the user can control the zooming of the image 52 only by touching the touch-sensitive area.

The main difference between the second embodiment and the first embodiment is that the input panel 60 of the second embodiment further includes a pointing device 69 . The indicator device 69 is used to generate an indicator signal to the processor 56 . The processor 56 scrolls the bitmap image 52 according to the index signal. In addition, the pointer signal can also be used to change the display position of the cursor 53 . Pointing device 69 may be a trackball, a touch pad or a joystick. in addition. The key 64 is used to generate a key signal to assist the processor to scroll the bitmap image 52 or move the cursor 53 .

As shown in FIG. 8 , the pointing device 69 is a trackball, and the bitmap image 52 contains several diagrams 51 . When the bitmap image 52 is zoomed out, all graphs 51 are displayed on the display device 54 . However, the graph 51 may be too small for the user to watch carefully. When the charts 51 are too small to be carefully viewed by the user, the user can zoom in on each chart 51 individually via the knob 68 . The display processor 56 uses the position of the cursor 53 as a zoom point, which is used as a reference when zooming the bitmap image 52 . The user can use the trackball 69 to move the cursor 53 , and then use the knob 68 to zoom in on the bitmap image 52 . At this time, the processor 56 will zoom in on the bitmap image 52 with the position of the cursor 53 as the center. For example, the user can move the cursor 53 to the graph 51 at the upper left corner of the bitmap image 52 and use the knob 68 to zoom in on the graph 51 (as shown in FIG. 10 ). In addition, when the bitmap image 52 is zoomed in, the user can scroll the bitmap image 52 through the trackball 69 .

Refer to Figure 11. FIG. 11 is a schematic diagram of a palm-type device 70 according to a third embodiment of the present invention. The personal data assistant 70 differs from the personal data assistant 50 in the input panel 80 . The zoom control device 88 of the input panel 80 is a bi-directional switch (bi-directional switch), and its index device system 89 is a two-dimensional rocking switch (two-dimensional rocking switch). The user can flip the two-way switch 88 to control the zooming of the display device 74 . When the user pulls up the two-way switch 88, the picture displayed by the display device 74 will be enlarged, and when the user pulls it down, the picture will be reduced. The personal data assistant 70 determines the zooming degree of the control display device 74 according to the degree of the user's pulling of the two-way switch 88 (for example, when the midpoint is taken as the base point, the user's pulling distance). When the user pulls the farther away from the midpoint of the two-way switch 88, the zooming degree of the display device 74 is larger; The smaller the scaling is. Therefore, the personal data assistant 70 can use the two-way switch 88 to make the zooming action of the display device 74 smoother. The user can arbitrarily zoom in and out of the picture displayed on the display device 74 by the degree of turning the two-way switch 88 . In addition, the user can use the two-dimensional swing switch 89 to generate an index signal to control the scrolling of the screen displayed on the display device 74 . The user can swing the two-dimensional swing switch 89 upwards, downwards, leftwards and rightwards to generate corresponding scrolling signals for upwards, downwards, leftwards and rightwards.

Refer to Figure 12. FIG. 12 is a schematic diagram of a palm-type device 90 according to a fourth embodiment of the present invention. Handheld device 90 is a personal data assistant. The personal data assistant 90 differs from the personal data assistant 70 in that the zoom control device is integrated with the pointer device 104 . The indicator device 104 is a two-dimensional swing switch, and its structure is very similar to the aforementioned two-dimensional swing switch 89 . The two-dimensional swing switch 104 includes a pressure-touch type switch (not shown) mounted below the two-axis origin 106 of the two-dimensional swing switch 104 . When the two-dimensional rocker switch 104 is pressed down, the pressure-triggered switch is activated. Conversely, when the depressed state of the two-dimensional swing switch 104 is released, the pressure touch switch will not be activated. When the pressure touch switch is not activated, the image displayed on the display device 94 can be scrolled by shaking the two-dimensional swing switch 104 . When the pressure touch switch is activated, if the two-dimensional swing switch 104 is shaken downward, the image displayed on the display device 94 will be reduced, and vice versa, when the two-dimensional swing switch 104 is shaken upward, the image will be enlarged. In addition, the user can switch the state of the pressure-sensitive switch (for example, first release the pressed state of the switch and then press it down), to switch the zoom state of the personal data assistant 90, and then make the pressure-sensitive switch in the first zoom state. The state (zoomed state) is switched between a second zoomed state (zoomed state). Therefore, the user can use a single two-dimensional swing switch 104 to generate a two-dimensional index signal and a zoom control signal, and then control the scrolling and zooming of the display device 94 .

The above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope defined by the claims of the present invention shall fall within the scope covered by the rights of the patent of the present invention.

Claims (9)

1. palmtop device is characterized in that comprising:

A display device is used for showing bit mapped image;

A processor is connected with described display device;

A storer is connected with described processor, and described storer comprises the display routine that is used for controlling described display device; With

An input panel is connected with described processor, and described input panel comprises:

Be used to produce a plurality of buttons of push button signalling;

Be used for moving the index device of the cursor on the described display device; With

The convergent-divergent control device, described convergent-divergent control device produces resizing control signal according to user's input;

Wherein, described processor is according to the resizing control signal that is received from described convergent-divergent control device, and is that the center is amplified or dwindled described bit-mapped data with the position at described cursor place.

2. palmtop device as claimed in claim 1, wherein, described convergent-divergent control device is a knob, a slider or a two-way button.

3. palmtop device as claimed in claim 1, wherein, described input panel also comprises the index device that is used to produce index signal, and described processor comes scrolling to be presented at bit mapped image on the described display device according to described index signal.

4. palmtop device as claimed in claim 3, wherein, described index device is a trace ball or a touch pad, is used for producing the two dimensional pointer signal.

5. palmtop device as claimed in claim 3, wherein, described convergent-divergent control device is a two-way switch, and described index device is a two-dimentional Swinging switch.

6. palmtop device as claimed in claim 3, wherein, described index device is two-dimentional Swinging switch, and described convergent-divergent control device is a switch, when described two-dimentional Swinging switch was pressed down near its diaxon initial point, described switch can be touched.

7. palmtop device as claimed in claim 6, wherein, described switch is used for switching between the first flexible state and the second flexible state.

8. palmtop device as claimed in claim 6, wherein, when described switch was touched, described two-dimentional Swinging switch was used to produce described resizing control signal.

9. palmtop device as claimed in claim 1, wherein, described palmtop device is personal digital assistant or mobile phone.

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