TW201447654A - Communication device and method for preventing mis-touch when communicating - Google Patents

Abstract

A communication device is capable of executing a method for preventing mis-touch when communicating, and the method includes the following steps: employing an image capture device of the communication device to capture an image; distinguishing an analogous color block from the image; determining whether the color system of the analogous color block is a predetermined color system; if yes, determining whether a ratio of an area of the analogous color block to a total area of the captured image is greater than a predetermined ratio; if yes, disabling a touch display device.

Description

Communication device and method for avoiding accidental touch on the screen during a call

The present invention relates to a communication device, and more particularly to a communication device and a method for avoiding accidental touch on a screen during a call.

In modern life, smart phones have become one of the mainstream communication devices. Currently, smart phones have a touch display device, which can be used not only to display information, but also to directly click a pattern on the screen to execute a corresponding program.

During the call, the user's cheeks, ears or hair may come into contact with the touch-sensitive display device, which may easily lead to malfunction of the smart phone, such as: opening a web page, turning on a microphone, turning on the mute, hanging up the phone, etc. Wait. Therefore, there is a manufacturer to add a light sensor or a distance sensor to the smart phone to detect the distance between the user's head and the smart phone, and turn off the touch at a certain distance. Display device.

However, since the light sensor or the distance sensor is additionally added to the smart phone, the pressure of the cost is inevitably increased. In addition, the effective sensing distance of the two sensors is very short, that is, the above sensors are required The distance between the user's head and the smart phone must be detected within a short distance. Therefore, when the user quickly picks up the smart phone, it is likely that the touch display device can be turned off.

In view of the above, it is an object of the present invention to provide a communication device and a method for avoiding accidental touch on a screen during a call to solve the difficulties encountered in the prior art described above.

In order to achieve the above object, according to an embodiment of the present invention, a method for avoiding accidental touch on a call may include the following steps: capturing an image by using an image capturing device of a communication device; and distinguishing the image into at least one color. Blocking; determining whether the color system of at least one of the same color patches corresponds to at least one predetermined color system; if so, determining whether the ratio of the area of the same color color block of the predetermined color system to the total area of the image is greater than or equal to a predetermined Ratio; if so, turn off the touch display device of one of the communication devices.

According to another embodiment of the present invention, a communication device includes a touch display device, an image capture device, a color definition unit, a color system determination unit, an area determination unit, and a switch unit. The image capture unit is used to capture an image. The color definition unit is electrically connected to the image capturing device and is used to distinguish the image into at least one color block. The color system determining unit is electrically connected to the color defining unit, and is configured to determine whether the color system of the at least one color block corresponds to at least one predetermined color system. The area judging unit is electrically connected to the color judging unit for judging whether the ratio of the area of the same color block of the predetermined color system to the total area of the image is greater than or equal to a pre-predetermined Set the ratio. The switch unit electrical connection area determining unit is configured to turn off the touch display device when the ratio of the area of the same color block of the predetermined color system to the total area of the image is greater than or equal to a predetermined ratio.

In the above embodiment, the communication device can capture the image by using its own image capturing device (for example, a front lens, etc.), and by the size of the color block in the image that matches the predetermined color system. To determine whether the user's head is close to the communication device, thereby turning off the touch display device. Therefore, the communication device of the above embodiment can reduce the cost without additionally adding a photo sensor or a distance sensor. In addition, regardless of the distance between the user's head and the communication device, the image capturing device can capture the image of the user's head, so that the prior art can be solved because of the effective sense of the light sensor or the distance sensor. The measurement distance is too short, and it is too late to turn off the touch display device.

10, 10a‧‧‧ communication device

100‧‧‧ body

102‧‧‧ surface

200‧‧‧Image capture device

300‧‧‧Touch display device

310‧‧‧Touch panel

320‧‧‧Backlight module

400, 400a‧‧‧ control module

410‧‧‧Talk unit

420‧‧‧Image capture triggering unit

430, 430a‧‧‧ color definition unit

440, 440a‧‧‧ color system judgment unit

450, 450a‧‧‧ area judgment unit

460, 460a‧‧‧ switch unit

470‧‧‧ area calculation unit

500‧‧‧Antenna

600‧‧‧Speakers

700‧‧‧ microphone

801~809, 901~910‧‧‧ steps

The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; FIG. 3 is a functional block diagram of the communication device of FIG. 1; FIG. 3 is a schematic diagram of a method for avoiding accidental touch of a screen during a call according to an embodiment of the present invention; FIG. 4 is a diagram showing a communication device according to another embodiment of the present invention; Functional block diagram; and FIG. 5 illustrates a method for avoiding accidental touch of a screen during a call according to another embodiment of the present invention.

The embodiments of the present invention are disclosed in the following drawings, and for the purpose of clarity However, it should be understood by those skilled in the art that the details of the invention are not essential to the details of the invention. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

1 is a top plan view of a communication device 10 in accordance with an embodiment of the present invention. As shown in FIG. 1 , in the present embodiment, the communication device 10 can include a main body 100 , an image capturing device 200 , and a touch display device 300 . The body 100 has a surface 102. Both the image capturing device 200 and the touch display device 300 are disposed on the same surface 102 of the body 100. When the user wants to talk, the user can move the communication device 10 such that its surface 102 is close to the user's head. In order to prevent the user's head from accidentally touching the touch display device 300 and causing malfunction, the present embodiment uses the image captured by the image capturing device 200 to determine whether to close the touch display device 300.

Specifically, referring to FIG. 2, this figure shows a functional block diagram of the communication device 10 of FIG. 1. As shown in FIG. 2, in the present embodiment, the communication device 10 can include a control module 400, an antenna 500, a speaker 600, and a microphone 700. The control module 400 can include a call unit 410, an image capture triggering unit 420, a color definition unit 430, a color system determination unit 440, an area determination unit 450, and a switch unit 460. The call unit 410 is electrically connected to the antenna 500, the speaker 600, and the microphone 700. Antenna 500 can receive or transmit a call request. When the antenna 500 receives the call request, the call request is transmitted to the call unit 410. When the user operates (eg, clicks or slides) the touch display device 300 to accept the call request, the call unit 410 can cause The speaker 600 and the microphone 700 can be enabled for the user to talk.

The image capture and promotion unit 420 is electrically connected to the communication unit 410, and can be used to trigger the image capture device 200 to capture an image after the user accepts the call request. In more detail, the image capturing device 200 can be a lens (such as CCD or CMOS, etc.). After the user accepts the call request, the image capture triggering unit 420 can execute a preview program to prompt the image capture device 200 to periodically capture the image without focusing, and capture the captured image. The image is temporarily stored in a temporary memory.

The color definition unit 430 is electrically connected to the image capturing device 200, and can be used to distinguish the images into at least one homogeneous color block. In more detail, the color definition unit 430 can cut the image captured by the image capturing device 200 into a plurality of color blocks, and determine the actual color system to which each color block belongs, and will belong to the same actual color system. Each color block is defined as a homogenous color block. It should be understood that the "actual color system" described herein represents the color definition unit 430 determines the color system to which the excellent block belongs according to the color code table of the memory. It should also be understood that the "color system" described herein can be distinguished into human skin color, human hair color, and other color systems. The color code of the color contained in the human skin color system in this paper can be as shown in the following Table 1:

The human hair color system in this paper may include oriental hair color and western color color, and the color code of the color contained in the oriental color color code on the 16-digit color code table may be as shown in the following Table 2:

In addition, the color code of the color contained in the Western color scheme can be as shown in Table 3 below:

When the color code corresponding to the patch color is any one of Table 1, the color definition unit 430 can determine that the actual color system to which it belongs is the human skin color system. When the color code corresponding to the patch color is any one of Table 2 or Table 3, the color definition unit 430 can determine that the actual color system to which it belongs is a human hair color system. The color definition unit 430 can cluster the same color patches of the actual color system and define them as a homogeneous color block as a whole.

The color system determining unit 440 is electrically connected to the color definition unit 430, which can be used to determine whether the actual color system to which the same color block belongs is a predetermined color system. For example, the predetermined color system may be a human skin color system, and when the actual color system is also a human skin color system, the color system determining unit 440 may determine that the actual color system is a predetermined color system. Similarly, the predetermined color system may be a human color color system, and when the actual color system is also a human color color system, the color system determining unit 440 may determine that the actual color system is a predetermined color system.

The area judging unit 450 is electrically connected to the color judging unit 440, and can be used to determine whether the actual ratio of the area of the same color patch of the predetermined color system to the total area of the image is greater than or equal to a predetermined ratio. Preferably, the predetermined ratio R substantially satisfies: 1/2 ≦ R ≦ 2 / 3, so that the touch display device 300 is turned off when the same color image that matches the predetermined color system has not yet occupied the entire image. In more detail, the predetermined ratio R may be any value between 1/2 and 2/3, and the area judging unit 450 may first calculate the area of the same color block that conforms to the predetermined color system, and then obtain the image and the image. The actual ratio of the total area is then determined whether the actual ratio is greater than or equal to the predetermined ratio.

The switch unit 460 is electrically connected to the area determining unit 450, and the result of the determination by the area determining unit 450 is obtained, and the touch display device 300 is turned on or off accordingly. In more detail, when the area determining unit 450 determines that the actual ratio is greater than or equal to the predetermined ratio, the switch unit 460 may turn off the touch display device 300. In this way, even if the user's head touches the touch display device 300, the touch display device 300 does not malfunction.

The touch display device 300 can include a touch panel 310 and a backlight module 320. The touch panel 310 is used to display images, and the user can operate the communication device 10 in a touch manner. The backlight module 320 is used. The light of the touch panel 310 is provided to facilitate display of the image. Both the touch panel 310 and the backlight module 320 can be turned off by the switch unit 460.

In this embodiment, each unit of the control module 400 can be implemented by a software or a firmware.

FIG. 3 illustrates a method for avoiding accidental touch of a screen during a call according to an embodiment of the present invention, the steps including the following.

In step 801, the user can accept the call request through the communication device 10.

In step 802, after accepting the call request, the image capture device 200 of the communication device 10 can capture the image. Specifically, the image capture triggering unit 420 can trigger the image capturing device 200 to capture an image after accepting the call request.

In step 803, the color definition unit 430 can distinguish the image into at least one sibling color block. Specifically, the color definition unit 430 can The image captured by the image capturing device 200 is cut into a plurality of color patches, and a plurality of color patches belonging to the same actual color system are defined as a same color block.

In step 804, the color system determining unit 440 determines whether the actual color system of the same color block is a predetermined color system. If the actual color system of the same color block is a predetermined color system, then step 805 is entered.

In step 805, the area determining unit 450 can determine whether the actual ratio of the area of the same color block to the total area of the image is greater than or equal to a predetermined ratio. Preferably, the predetermined ratio R substantially satisfies: 1/2 ≦ R ≦ 2/3. If the actual ratio of the area of the same color block to the total area of the image is greater than or equal to a predetermined ratio, then step 806 is entered.

In step 806, the switch unit 460 turns off the touch display device 300, so that the user's head can be prevented from accidentally touching the touch display device 300. During the call, the communication device 10 may cyclically perform steps 802 to 806 to ensure that the touch display device 300 is turned off during a call.

Going back to step 804, if the actual color system of the same color block is not the predetermined color system, then the process proceeds to step 807 to turn on the touch display device 300. In other words, at this time, the control module 400 can determine that the user's head is not close to the communication device 10, so that the touch display device 300 can be turned on without touching the touch display device 300, and the touch display device 300 can be turned on to facilitate the user. Operation (such as hanging up the phone, etc.).

Going back to step 805, if the actual ratio is less than the predetermined ratio, the process may proceed to step 807 to turn on the touch display device 300. In other words, the control module 400 can determine that the user's head is not close to the communication device 10, so that the user's head does not need to be inadvertently touched by the touch-sensitive display device 300, and the touch can be turned on. The display device 300 is controlled to facilitate user operations (such as hanging up the phone, etc.).

When the touch display device 300 is turned on in step 807, the process may proceed to step 808 to determine whether the call is over. If the call has ended, proceed to step 809 to end the process. If the call has not ended, perform steps 802 to 805 again, recapture the image, and perform subsequent color system and area determination.

FIG. 4 is a functional block diagram of a communication device 10a according to another embodiment of the present invention. The main difference between the communication device 10a and the communication device 10 is that the functions of the control module 400a and the control module 400 are different, as described in detail below: the color definition unit 430a of the communication device 10a can be used to distinguish images into two different systems. Color block. In other words, the color definition unit 430a may define a first homologous color block and a second homologous color block, and the two belong to different first actual color systems and a second actual color system, respectively. Specifically, the color definition unit 430a may cut the image captured by the image capturing device 200 into a plurality of color patches, and define a plurality of color patches belonging to the first actual color system as a first color region. A block, and a plurality of color patches belonging to the second actual color system are defined as a second homologous color block. For example, when a part of the color patches belong to the human skin color system, the color definition unit 430a may cluster them together and define the whole as the first homologous color block; when the other part of the color block belongs to In the case of a human hair color system, the color definition unit 430a may cluster them together and define the entirety as a second homologous color block.

The color system determining unit 440a of the communication device 10a can be used to determine whether the first actual color system and the second actual color system are respectively a first predetermined color system and a second predetermined color system. For example, the first predetermined color system can be a human skin color system and the second predetermined color system is a human hair color system. The color system judging unit 440a may determine whether the first actual color system to which the first congruent color block belongs is a human skin color system, and whether the second actual color system to which the second congruent color block belongs is a human color color system.

The communication device 10a can include an area calculation unit 470. The area calculation unit 470 is electrically connected to the color definition unit 430a, which can be used to obtain the sum of the areas of the first homologous color block conforming to the first predetermined color system and the second homologous color block conforming to the second predetermined color system. The area judging unit 450a is electrically connected to the area calculating unit 470 in addition to the electrical connection color judging unit 440a, and can obtain the sum of the areas, and determine whether the actual ratio of the area sum to the total area of the image is greater than or equal to a predetermined value. ratio. Preferably, the predetermined ratio R substantially satisfies: 1/2 ≦ R ≦ 2 / 3, so that the first homologous color block conforming to the first predetermined color system and the second homologous color conforming to the second predetermined color system When the color block has not occupied the entire image, the touch display device 300 is turned off.

The switch unit 460a of the communication device 10a can turn on or off the touch display device 300 according to the determination result of the area determination unit 450a. In more detail, when the area judging unit 450a judges the sum of the area of the first homochromatic color block conforming to the first predetermined color system and the second congruent color block conforming to the second predetermined color system and the total area of the image, When the ratio is greater than or equal to a predetermined ratio, the switch unit 460a may turn off the touch display device 300. In this way, even if the user's head touches the touch display device 300, the touch display device 300 does not malfunction.

In this embodiment, each unit of the control module 400a can be implemented by a software or a firmware. The other technical features of the communication device 10a are the same as those described above for the communication device 10, and therefore the description will not be repeated.

FIG. 5 illustrates a method for avoiding accidental touch of a screen during a call according to another embodiment of the present invention, the steps of which are as follows.

In step 901, the user can accept the call request by the communication device 10a.

In step 902, after accepting the call request, the image capturing device 200 of the communication device 10a can capture the image.

In step 903, the color definition unit 430a can distinguish the image into a first homologous color block and a second homologous color block. Specifically, the color definition unit 430a may cut the image captured by the image capturing device 200 into a plurality of color blocks, and define a plurality of color blocks belonging to the first actual color system as the first same color block. And defining a plurality of color patches belonging to the second actual color system as the second homogenous color block.

In step 904, the color system determining unit 440a determines whether the first actual color system and the second actual color system are respectively the first predetermined color system and the second predetermined color system, and if so, proceeds to step 905.

In step 905, the area summation unit 470 obtains the sum of the areas of the first homochromatic color block conforming to the first predetermined color system and the second homologous color block conforming to the second predetermined color system.

In step 906, the area determining unit 450a can determine whether the actual ratio of the sum of the areas to the total area of the image is greater than or equal to a predetermined ratio. Preferably, the predetermined ratio R substantially satisfies: 1/2 ≦ R ≦ 2/3.

If the actual ratio is greater than or equal to the predetermined ratio, the process proceeds to step 907, and the touch display unit 300 is turned off by the switch unit 460a. This prevents the user's head from accidentally touching the touch display device 300. During the call, the communication device 10a may cyclically perform steps 902 to 907 to ensure that the touch display device 300 is turned off during a call.

Returning to step 904, if the first actual color system is not the first predetermined color system, or the second actual color system is not the second predetermined color system, then step 908 is entered to turn on the touch display device 300. In other words, the control module 400a can determine that the user's head is not close to the communication device 10a. Therefore, the touch display device 300 can be turned on without touching the touch display device 300. User operations (such as hanging up the phone, etc.).

In addition, returning to step 906, if the actual ratio is less than the predetermined ratio, the process may proceed to step 908 to turn on the touch display device 300. In other words, the control module 400a can determine that the user's head is not close to the communication device 10a. Therefore, the touch display device 300 can be turned on without touching the touch display device 300. User operations (such as hanging up the phone, etc.).

When the touch display device 300 is turned on in step 908, it may proceed to step 909 to determine whether the call is over. If the call has ended, proceed to step 910 to end the process. If the call has not ended, re-execute steps 902 to 906, recapture the image, and perform subsequent color system and area determination.

In summary, in the above embodiment, the communication device 10 or 10a can use its own image capturing device 200 to capture images and borrow From the image, the size of the same color block of the predetermined color system is used to determine whether the user's head is close to the communication device 10 or 10a, thereby turning off the touch display device 300. Therefore, the communication device 10 or 10a of the above embodiment does not need to additionally add a photo sensor or a distance sensor, thereby reducing the cost. In addition, regardless of the distance between the user's head and the communication device 10 or 10a, the image capturing device 200 can capture the image of the user's head, so the prior art can be solved because of the light sensor or distance sensing. The effective sensing distance of the device is too short to have the problem of turning off the touch display device 300.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

10‧‧‧Communication device

200‧‧‧Image capture device

300‧‧‧Touch display device

310‧‧‧Touch panel

320‧‧‧Backlight module

400‧‧‧Control Module

410‧‧‧Talk unit

420‧‧‧Image capture triggering unit

430‧‧‧Color definition unit

440‧‧‧ color system judgment unit

450‧‧‧ Area Judging Unit

460‧‧‧Switch unit

500‧‧‧Antenna

600‧‧‧Speakers

700‧‧‧ microphone

Claims (9)

A method for avoiding accidental touch on a screen during a call, comprising: capturing an image by using an image capturing device of a communication device; dividing the image into at least one color block; determining a color system of the at least one color block Whether respectively corresponding to at least one predetermined color system; if so, determining whether a ratio of the area of the same color block of the predetermined color system to the total area of the image is greater than or equal to a predetermined ratio; if so, turning off the communication device A touch display device. The method of claim 1, wherein the predetermined ratio R substantially satisfies: 1/2 ≦ R ≦ 2/3. The method of claim 1, wherein the predetermined color system is a human skin color system or a human hair color system. The method of claim 1, wherein the number of the at least one color block is two, and the predetermined color system corresponding to one of the same color blocks is a human. The skin color system, and the predetermined color system corresponding to the other color block is a human hair color system. A communication device comprising: a touch display device; an image capture device for capturing an image; a color definition unit electrically connected to the image capture device for The image is divided into at least one color block; the color system determining unit is electrically connected to the color defining unit to determine whether the color system of the at least one color block corresponds to at least one predetermined color system; and an area determining unit, Electrically connecting the color system determining unit to determine whether a ratio of an area of the same color block of the predetermined color system to a total area of the image is greater than or equal to a predetermined ratio; and a switch unit electrically connected The area determining unit is configured to turn off the touch display device when the ratio is greater than or equal to the predetermined ratio. The communication device of claim 5, further comprising: a body, wherein the image capturing device and the touch display device are disposed on the same surface of the body. The communication device of claim 5, wherein the predetermined ratio R substantially satisfies: 1/2 ≦ R ≦ 2/3. The communication device of claim 5, wherein the predetermined color system is a human skin color system or a human hair color system. The communication device of claim 5, wherein the number of the at least one homogenous color block is two, and the predetermined color system corresponding to one of the homologous color blocks is a human skin color system, and The predetermined color system corresponding to the same color block is a human hair color system.