JP2004282526A - Portable telephone set with television broadcasting receiving function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable telephone set with a television broadcasting receiving function for displaying a television image on an indicator long sideways so as to make the image turn in a normally vertical direction regardless of the way of bringing down the a portable telephone set main body when the portable telephone set main body is placed sideways in a television program viewing mode. <P>SOLUTION: This portable telephone set with a television broadcasting receiving function is provided with: a direction detecting means for detecting whether the direction of the indicator is in a first sideways state or in a second sideways state obtained by turning the indicator in the first sideways state by 180° in a television mode; and a video turning processing means for applying turning processing to a television image and then supplying the television image to the indicator so as to display the television image suitable for the direction of the indicator detected by the direction detecting means on the indicator. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable telephone with a television broadcast receiving function.
[0002]
[Prior art]
In recent years, the penetration rate of portable telephones has been increasing. Since a portable telephone is equipped with a display such as a liquid crystal display, a television program can be displayed on the display by adding a function of receiving a television broadcast to the portable telephone.
[0003]
By the way, the display mounted on a portable telephone is generally used in a vertically long state, whereas the display mounted on a television broadcast receiver is used in a horizontally long state. Have been. Therefore, in the television mode, it is preferable that the main body of the mobile phone is in a horizontal position so that the display can be used in a horizontally long state.
[0004]
[Problems to be solved by the invention]
When the mobile phone body is turned sideways in the TV mode, when the upper part of the mobile phone body is turned to the left with respect to the lower part, and when the upper part of the mobile phone body is turned to the right side with respect to the lower part There are two ways to defeat it.
[0005]
According to the present invention, when the mobile phone body is turned sideways in the TV program viewing mode, the TV image is displayed on the display in the horizontally long state so that the top and bottom are in the normal orientation regardless of how the handset is tilted. It is an object of the present invention to provide a portable telephone with a television broadcast receiving function that can be performed.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 includes a rectangular display, and includes, as operation modes, a telephone mode used as a telephone and a television mode used as a television. In the telephone mode, the display is used in a vertically long state. In a portable telephone with a television broadcast receiving function in which the display is used in the landscape mode in the television mode, the orientation of the display is in the first landscape state or in the first landscape state in the television mode. A direction detector for detecting whether a certain display is in the second horizontally long state rotated by 180 degrees, and a television image suitable for the direction of the display detected by the direction detector is displayed on the display. In this way, the image processing apparatus is characterized in that the apparatus is provided with a video rotation processing means for performing a rotation process on a television image and then supplying it to a display device.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0008]
FIG. 1 shows the appearance of a portable telephone with a television broadcast receiving function.
[0009]
The operation modes of the portable telephone are roughly classified into a telephone mode used as a telephone and a television mode used as a television.
[0010]
A vertically long display 40 is provided in the upper half of the surface of the portable telephone, and various keys are provided in the lower half of the surface. The upper, lower, left and right sides of the display 40 are defined based on the case where the display 40 is in the vertically long state as shown in FIG. That is, in FIG. 1, when viewed from the front, the upper side of the display 40 is referred to as an upper side U, the lower side is referred to as a lower side D, the left side is referred to as a left side L, and the right side is referred to as a right side R. I do.
[0011]
In the telephone mode, as shown in FIG. 1, the upper side of the image to be displayed corresponds to the upper side U of the display 40, and the lower side of the image corresponds to the lower side D of the display 40. Various images are displayed on the display 40. Such a display mode is called a portrait display mode.
[0012]
In the television mode, as shown in FIG. 2A or 2B, the portable telephone body is turned sideways and the display 40 is used in a horizontally long state.
[0013]
In FIG. 2A, the upper side U of the display 40 is located on the left, the lower side D of the display 40 is located on the right, the right side R of the display 40 is located on the upper side, and the left side D of the display 40 is located on the left. It is located below. Such a direction of the portable telephone body is referred to as a left-facing state. In this case, the television image is displayed on the display 40 such that the upper side of the image to be displayed corresponds to the right side R of the display 40 and the lower side of the image corresponds to the left side L of the display 40. Is done. Such a display mode is referred to as a first landscape display mode.
[0014]
In FIG. 2B, the upper side U of the display 40 is located on the right, the lower side D of the display 40 is located on the left, the right side R of the display 40 is located on the lower side, and the left side L of the display 40 is located on the lower side. Located on top. Such a direction of the portable telephone body is referred to as a rightward state. In this case, the television image is displayed on the display 40 such that the upper side of the image to be displayed corresponds to the left side L of the display 40 and the lower side of the image corresponds to the right side R of the display 40. Is done. Such a display mode is referred to as a second landscape display mode.
[0015]
In this embodiment, in the television mode, the orientation (whether left or right) of the mobile phone main body is detected by the orientation detection device, and the display mode is changed to the second mode in accordance with the detection result. Set the first landscape display mode or the second landscape display mode.
[0016]
FIG. 3 shows an electrical configuration of a mobile phone with a television broadcast receiving function.
[0017]
The mobile phone includes a telephone function unit 20, a television broadcast receiving function unit 30, and a CPU 10 that controls these function units 20, 30. An operation unit 11 including various keys, a flash memory 12, an orientation detection device 13, and the like are connected to the CPU 10. The orientation detection device 13 detects whether the orientation of the main body of the portable telephone is in the leftward state or the rightward state in the television mode. As the direction detecting device 13, for example, a device provided with an acceleration sensor is used.
[0018]
The telephone function unit 20 will be described. The signal received by the telephone communication antenna 21 is supplied to the signal processing circuit 23 via the wireless circuit 22, and the digital reception signal is demodulated. The digital reception signal is converted by the AD / DA converter 24 into an analog reception signal. The analog reception signal is sent to the speaker 26 after being amplified by the first amplifier 25.
[0019]
The transmission signal input to the microphone 28 is amplified by the second amplifier 27 and then converted by the AD / DA converter 24 into a digital transmission signal. The digital transmission signal is sent to the signal processing circuit 23 and undergoes modulation. The modulated transmission signal is transmitted from the telephone communication antenna 21 via the wireless circuit 22.
[0020]
The television broadcast receiving function unit 30 will be described. A television broadcast wave received by the television broadcast receiving antenna 31 is tuned by a tuner 32, and a broadcast signal obtained by this is temporarily stored in a buffer memory 33 and then supplied to a demultiplexer 34.
[0021]
The demultiplexer 34 extracts program data for the mobile communication terminal from the input broadcast signal. The extracted program data is supplied to the AV selector 35, where the video data and the audio data are separated.
[0022]
The audio signal separated by the AV selector 35 is supplied to an audio decoder 36, MPEG-decoded, converted to an analog audio signal, and supplied to a speaker 37.
[0023]
The video signal separated by the AV selector 35 is supplied to a video decoder 38 and MPEG-decoded, and then sent to a display 40 via a video rotation processing circuit 39. A signal generated by the character / graphics generator 41 for generating a character to be displayed on the display and graphics in the telephone mode is sent to the display 40.
[0024]
Writing of video data to the display 40 is performed by regarding the up, down, left, and right directions of the display 40 as the directions defined with reference to FIG.
[0025]
In the telephone mode, the display 40 is supplied with only the signal generated by the character / graphics generator 41. The character / graphics generator 41 regards the vertical and horizontal directions of the display device 40 as the directions defined using FIG. 1 and generates characters and graphics. , The image is displayed in the portrait display mode.
[0026]
In this embodiment, in the television mode, only the video signal (video signal of a television program) from the video rotation processing circuit 39 is supplied to the display 40.
[0027]
FIG. 4 shows a display mode switching processing procedure executed by the CPU 10 when the operation mode is switched to the television mode.
[0028]
When the operation mode is switched from the telephone mode to the television mode (step 1), a display mode previously selected as the initial display mode from among the first landscape display mode and the second landscape display mode is set as the display mode. 39 is set (step 2). Here, it is assumed that the first landscape mode is selected as the initial display mode.
[0029]
When the first landscape display mode is set in the video rotation processing circuit 39, the video rotation processing circuit 39 converts the horizontal image for one screen transmitted from the video decoder 38 into the video image as shown in FIG. After performing the process of rotating 90 degrees clockwise, the obtained image is supplied to the vertically long display 40. Therefore, when the portable telephone is in the orientation (upward state) as shown in FIG. 6, the image is displayed in the orientation as shown in FIG.
[0030]
Thereafter, based on the detection result of the direction detection device 13, it is determined whether the direction of the portable telephone body is in the left state or the right state (step 3). If it is determined that the orientation of the portable telephone body is left, the first landscape display mode is set as the display mode (step 4), and the process proceeds to step 6. Since the processing contents of the video rotation processing circuit 39 in this case have been described above, the description thereof will be omitted. In this case, a television image is displayed on the display 40 as shown in FIG.
[0031]
If it is determined that the orientation of the mobile phone body is right, the second landscape display mode is set as the display mode (step 5), and the process proceeds to step 6. When the second landscape display mode is set in the video rotation processing circuit 39, the video rotation processing circuit 39 converts the horizontal image for one screen sent from the video decoder 38 into the video image as shown in FIG. After performing the process of rotating 90 degrees in the counterclockwise direction, the obtained image is supplied to the vertically long display 40. In this case, a television image is displayed on the display 40 as shown in FIG.
[0032]
In step 6, it is determined whether the operation mode has been switched to the telephone mode. If the operation mode has not been switched to the telephone mode, the process returns to step 3. If the operation mode has been switched to the telephone mode, the current process ends.
[0033]
【The invention's effect】
According to the present invention, when the mobile phone body is turned sideways in the TV mode, the TV image is displayed on the display in the horizontally long state so that the top and bottom are in a normal direction, regardless of how the mobile phone is tilted. Become so.
[Brief description of the drawings]
FIG. 1 is a front view of a portable telephone with a television broadcast receiving function.
FIG. 2 is a front view showing that the display device 40 is used in a horizontally long state in a television mode.
FIG. 3 is a block diagram showing an electrical configuration of a portable telephone with a television broadcast receiving function.
FIG. 4 is a flowchart showing a display mode switching processing procedure executed by a CPU 10 when an operation mode is switched to a television mode.
FIG. 5 is a schematic diagram for explaining processing contents by the image rotation processing circuit 39 when the first landscape display mode is set in the image rotation processing circuit 39;
FIG. 6 is a schematic diagram showing the orientation of an image displayed on the display device 40 when the display mode is the first landscape display mode and the mobile phone is in the upward state.
FIG. 7 is a schematic diagram for explaining processing contents by the image rotation processing circuit 39 when the second landscape display mode is set in the image rotation processing circuit 39;
[Explanation of symbols]
10 CPU
13 Orientation detection device 20 Telephone function unit 30 Television broadcast reception function unit 40 Display 39 Image rotation processing circuit

Claims (1)

Equipped with a rectangular display, there are two modes of operation, a telephone mode used as a telephone and a TV mode used as a TV. In the telephone mode, the display is used in a portrait state. In the TV mode, the display is in a landscape state. In a mobile phone with a TV broadcast reception function used in
In the television mode, an orientation for detecting whether the orientation of the display is in the first landscape state or the second landscape state in which the display in the first landscape state is rotated by 180 degrees. Detecting means, and image rotation processing means for rotating the television image so that the television image suitable for the orientation of the display detected by the orientation detection means is displayed on the display, and then supplying the television image to the display. ,
A portable telephone with a television broadcast receiving function, comprising:

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