JP2013192235A - Display terminal device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a television image to be easier to see for a user watching image data mainly and also for a user reading character data mainly.SOLUTION: When a television image reception unit receives a terrestrial digital broadcast in which image data and text data are multiplexed, a mobile phone displays images of the image data and text data in a display unit 21 by performing image processing of displaying an image of the image data in a display area 22 on the upper half of the display unit 21 and displaying an image of the text data in a display area on the lower half when an accommodation unit 20 accommodating the display unit 21 is set to a displacement state of Figure 1(A), and performing image processing of displaying the image of the image data in the whole display area of the display unit 21 and displaying the image of the text data so as to overlap with the image of the image data when the accommodation unit 20 is set to a displacement state of Figure 1(B).

Description

  The present invention relates to a portable television broadcast receiving apparatus that receives a television broadcast in which video data and text data are multiplexed and displays them on a display screen.

In recent years, in communication terminal devices such as mobile phones, in addition to functions for sending and receiving telephones and mails, there are products that have newly added functions of an optical element including a lens, an image pickup element such as a CCD, and a digital camera incorporating an image memory. It is popular. In addition, the flexible printed circuit board and other wiring technologies have been improved so that the main unit containing electronic components and key switches can be connected to the storage unit (lid unit) that houses the LCD (liquid crystal display) as the display unit. A foldable mobile phone that opens and closes the main body and the LCD housing is widely used.
In a proposed foldable mobile phone, as described in the specification and FIGS. 2A to 2D, a lower unit 20 having an operation unit, an upper unit 30 having a display unit 11, In the foldable mobile phone having the hinge unit 13 that couples the lower unit and the upper unit so that they can be opened and closed, the upper unit includes a display unit 34, a support unit 34, and a rotation / slide mechanism 40. The display unit has a display surface 32a on which the display unit is disposed. The pair of front camera units 17a and 17b arranged in the display unit are positioned above and below the display unit when the display unit is in the vertically long state, and the display unit is in the horizontally long state by rotating / sliding the display unit. When it becomes, it is located on the left and right of the display unit.
With this configuration, the effect that the display device can be used by changing it vertically or horizontally freely, the effect that 3D (three-dimensional) image processing can be easily performed, and the pair of cameras of the display unit, It is described that when a videophone is used, it is possible to select arbitrarily according to the other party of the telephone and use the difference between left and right facial expressions. (Patent Document 1)

JP 2003-319043 A

However, in the above-mentioned Patent Document 1, it is only necessary to set which corner of the display surface starts for each pixel constituting an image captured by a pair of cameras according to the displacement state of the display unit. In other words, the image processing is not performed on an image in which the vertical and horizontal sizes of the display image are designated. For example, although the image displayed in FIG. 2A and the images displayed in FIGS. 2B and 2C are images obtained by capturing the same scenery, the vertical and horizontal sizes of the displayed image are completely different. Is different.
For this reason, when commercializing a mobile phone capable of receiving terrestrial digital broadcasting that has been broadcast in some areas since December 2003, the display unit is used in a portrait orientation and in a landscape orientation. Depending on the case, display in which the vertical and horizontal sizes of the display image are different is not allowed.
SUMMARY OF THE INVENTION An object of the present invention is to enable a television display that is easier to view for both users who mainly view video information and users who mainly view text information.

  The television broadcast receiving apparatus according to claim 1 is a portable television broadcast receiving apparatus that receives a television broadcast in which video data and text data are multiplexed and displays them on a display screen, wherein the display screen is vertically long. Display mode discriminating means for discriminating whether it is a display mode or a landscape display mode, and after reception of the television broadcast is selected, the transmitted television broadcast is sequentially received and received Separating means for sequentially separating video data and text data from the television broadcast, and displaying each text data sequentially separated by the separating means on the display screen together with videos sequentially separated by the separating means , The display form of the display screen at the time when the text is displayed is sequentially determined by the display form determination means, and based on the determination result, the display screen Display control means for controlling whether to display the image data superimposed on the image display area where the image data is displayed, or to display the image data at a position separated from the image display area in the display screen. Features.

  According to the present invention, when a television broadcast in which video data and text data are multiplexed is received and displayed on a display screen, both for users who mainly view video data and for users who mainly view character data. This makes it possible to display the TV more easily.

The external view which shows the relationship between the displacement state of a mobile telephone and the display screen in embodiment of this invention. The figure which shows a mode that the accommodating part which accommodates the display part of the mobile telephone of FIG. 1 is opened from a main body. The figure which shows a mode that it rotates after opening the accommodating part of the mobile telephone of FIG. 1 and a display part is exposed and closed. The block diagram which shows the structure of the mobile telephone in the Example of the communication terminal device of this invention. The flowchart of the main routine of CPU which shows operation | movement of the mobile telephone in embodiment. 6 is a flowchart of the main routine of the CPU following FIG. The flowchart of the main routine of CPU following FIG. The flowchart of CPU incoming call detection.

Embodiments according to the present invention will be described below with reference to the drawings.
Hereinafter, embodiments of a communication terminal apparatus according to the present invention will be described with reference to FIGS. 1 to 8 taking a mobile phone as an example.
FIG. 1 is a diagram illustrating a state in which broadcast video and text information of terrestrial digital broadcasting are displayed on a mobile phone according to the embodiment. In this mobile phone, a housing part (lid part) 20 for housing an LCD (liquid crystal display) as a display part is provided with electronic parts such as a CPU and other ICs and key switches by a hinge part 30 having a biaxial structure orthogonal to each other. The main body 40 is accommodated. The hinge part 30 having a biaxial structure is a structure widely used in, for example, toys and other fields, and is gradually being used in a mobile phone. However, since it is not a particularly new technology, a detailed description thereof is omitted. To do. The housing part 20 and the main body 40 can be opened and closed around one axis (the X axis in FIG. 1A) of the hinge part 30 and rotate around the other axis (the Y axis in FIG. 1A). It has a movable structure. FIG. 1A shows a state in which the storage unit 20 is opened and the display unit 21 is exposed. FIG. 1B shows a state in which the storage unit 20 is closed while the storage unit 20 is rotated from the state of FIG. 1A and the display unit 21 is exposed.

Based on FIG. 2 and FIG. 3, the relationship between the displacement state of the accommodating part 20 of the mobile phone of FIG. FIG. 2 is a diagram illustrating a state in which the housing unit 20 that houses the display unit 21 of the mobile phone is opened from the main body 40. FIG. 3 is a diagram illustrating a state in which the display unit 21 is exposed by rotating after the housing unit 20 is opened. It is a figure which shows a mode that it closes.
In the state in which the accommodating portion 20 is closed, the display portion 21 is in a state of facing and contacting the main body 40 as shown in FIG. In this case, since the display unit 21 is hidden, the screen cannot be seen. When the housing portion 20 is opened from this state as shown in FIG. 2B, the displacement state is as shown in FIG. 2C, and the display portion 21 is visible as shown in FIG. become. In this state, the mail created by operating the character input switch of the main body 40 is displayed on the display unit 21 and transmitted by the operation of the transmission switch, or the received mail is displayed on the display unit 21 to display the save switch, The mail can be saved or deleted by operating the delete switch. Further, from this state, as shown in FIGS. 3 (A) and 3 (B), when the accommodating portion 20 is rotated in the direction of the arrow and the inside and outside of the accommodating portion 20 are reversed, FIG. (C) becomes a displacement state, and the accommodating part 20 can be closed in a state where the display part 21 is exposed (a state in which the front and back sides are reversed). That is, the state shown in FIG.

FIG. 4 is a schematic block diagram showing the configuration of the mobile phone in FIG.
In FIG. 4, the CPU 1 is composed of a one-chip IC with a built-in DSP (digital signal processor) for baseband signal processing. Connected to the system bus of the CPU 1 are ROM 2, RAM 3, RF block 4, tuner 5, OFDM (Orthogonal Frequency Division Multiplexing) demodulator 6, video decoder 7, audio decoder 8, and switch 9. Further, a VRAM (video RAM) 10, the hinge unit 30 described in FIGS. 1 to 3, and a mechanism unit 11 including a displacement sensor and a power control switch (not shown) are connected to the port of the CPU 1. ing. The displacement sensor is a sensor that detects the state of FIG. 2A, FIG. 2C, that is, the state of FIG. 1A, and FIG. 3C, that is, the state of FIG. As this displacement sensor, several configurations are widely known. For example, as in Patent Document 1 above, a configuration using a magnet and a magnetic sensor, a configuration using a proximity switch by a combination of an infrared light emitting diode and a phototransistor, or a mechanical mechanical switch may be used. The configuration may be also possible.
In FIG. 1, a tuner 5, an OFDM demodulator 6, a video decoder 7, and an audio decoder 8 surrounded by a dotted line constitute a television receiver that takes in video / audio signals of terrestrial digital broadcasting. Yes. The power source of the television receiver is configured independently of the power source of the mobile phone circuit.

  A display unit 21 is connected to the CPU 1 via the display driver 12. As described above, the cellular phone includes a main body (the main body 40 in FIGS. 1 and 2) that houses electronic components such as the CPU 1 and the switch unit 9, and a housing unit that houses the display unit 21 (FIGS. 1 and 2). The housing portion 20) can be opened and closed by the hinge portion 30 of the mechanism portion 11, that is, the folding mechanism. Furthermore, a microphone 13, a speaker 14, and an earphone 15 are provided in the main body and the housing portion, and are connected to the CPU 1 via a driver (not shown).

  ROM 2 has a communication control processing program for performing communication and mail transmission / reception with other mobile phones, a reception processing for digital terrestrial broadcasting, a display processing for displaying received video data, and a signal processing program such as audio processing, and initialization. Stores default values and so on. The RAM 3 is a work area of the CPU 1, a buffer area for temporarily storing data processed by the CPU 1, areas such as various registers and flags, an area for storing mail to be transmitted, an area for storing received mail, and the like Is provided. The RF block 4 includes a wireless transmission / reception unit, a wireless signal processing unit, a voice signal processing unit, and the like (none of which are shown) as components for transmitting / receiving a telephone or mail to / from the telephone communication network.

  The tuner 5 receives terrestrial digital broadcasting and performs signal processing such as high-frequency amplification. The OFDM demodulator 6 demodulates the OFDM-modulated signal obtained from the tuner 5 and outputs video and audio encoded data of terrestrial digital broadcasting. The video decoding unit 7 decodes the encoded data of the video output from the OFDM demodulation unit 6 and outputs the digital video data to the CPU 1. The CPU 1 processes the digital video data obtained from the television receiver and outputs it to the display unit 21 via the display driver 12 to display a television image. The voice decoding unit 8 decodes the voice encoded data output from the OFDM demodulation unit 6 and outputs a digital voice signal to the CPU 1. The CPU 1 converts the digital audio signal into an analog signal and outputs it to the speaker 14 or the earphone 15 to generate TV sound. Further, when the RF block 4 detects an incoming call, the CPU 1 issues a call notification through the speaker 14.

  The switch unit 9 includes a group of key switches such as an off-hook switch, an on-hook switch, an outgoing switch, a cursor switch, an execution switch, a clear switch, and a numeric switch for a mobile phone, and one of the switches is a TV switch. It is combined with. The microphone 13 converts the user's voice into an electric signal in the call processing and inputs the electric signal to the CPU 1. The VRAM 10 is a memory having an area a for storing video data and text data of one frame of terrestrial digital broadcasting, and an area b for storing data of one frame to be actually displayed on the display unit 21. The image data is subjected to image processing and stored in the area b. This image processing will be described later. A configuration in which the RAM 3 has the function of the VRAM 10 is also possible.

Next, operations for transmitting and receiving telephones and mails in this mobile phone and processing of video data received from terrestrial digital broadcasting will be described based on the flowcharts of FIGS. 5 to 8 executed by the CPU 1.
5 to 7 are flowcharts of the main routine of the CPU 1. When the lid of the mobile phone is opened and the power switch is turned on, predetermined initialization is performed (step SA1), and the standby screen image is displayed on the display unit 21 (step SA2). Next, it is determined whether or not the off-hook switch has been operated (step SA3), and when this switch is operated, a telephone number input screen is displayed on the display unit 21 (step SA4). When a telephone number is input by operating the switch unit 9, a number input process is performed (step SA5) and a call is transmitted to the telephone network (step SA6). In addition, the call notification is performed by the speaker 14 (step SA7). During this call notification, it is determined whether or not a line connection has been established with the called party in response to the call (step SA8). Signal transmission / reception is performed (step SA9).

  In the call process, it is determined whether or not the on-hook switch has been operated (step SA10). When this switch is operated, a call termination process such as line disconnection is performed (step SA11). After the end-of-call process, the process proceeds to step SA2, and the standby screen image is displayed again on the display unit 21. If the off-hook switch is not operated in step SA3, it is determined whether or not the television switch is turned on in the flowchart of FIG. 6 (step SA12). If this switch is turned on, the power of the television receiver is turned on. Is turned on (step SA13), terrestrial digital broadcast broadcast data is extracted from the television receiver, and one frame of broadcast data consisting of video data and text data is stored in area a of the VRAM 10 (step SA14). Then, audio data from the broadcast data is output to the speaker 14 (step SA15), and video data and text data are separated from the broadcast data (step SA16).

  Next, whether the current display form is vertical or horizontal is detected by a displacement sensor (step SA17), and the detection result is set as a display form flag. When the display form is vertical, image development in the VRAM 10 is processed so as to obtain a display screen as shown in FIG. That is, the video data is output to the upper half video area 22 which is a partial display area of the display unit 21 (step SA18), and the text data is output to the lower half text area of the display unit 21 (step SA19). On the other hand, when the display form is horizontal, the image development in the VRAM 10 is processed so as to obtain a display screen as shown in FIG. That is, the video data and text data are converted horizontally (step SA20), and the text data is superimposed on the video data (step SA21). The superimposed data is output to the display unit 21 (step SA22).

  After outputting the data to the display unit 21 in step SA19 or step SA22, it is determined in the flowchart of FIG. 7 whether or not the mechanism has changed due to the operation (step SA23). That is, it is determined whether or not the displacement state of the storage unit 20 has changed. If there is a mechanism change, it is determined whether the display has changed from vertical display to horizontal display or from horizontal display to vertical display (step SA24). When the display is changed from the vertical display to the horizontal display, the entire display area of the display unit 21 is set as the video display area (step SA25), and the display form flag is set horizontally (step SA26). On the other hand, when the mechanism change is from horizontal display to vertical display, a part of the display area 22 which is the upper half of the display unit 21 is set as a video display area, and the lower half is set as a text area (step SA27). Then, the display form flag is set vertically (step SA28).

  After setting the display form flag in step SA26 or step SA28, or if there is no mechanism change in step SA23, it is determined whether or not the TV switch is turned off (step SA29), and this switch is not turned off. In step SA14 in FIG. 6, the loop processing to step SA29 in FIG. 7 is repeated. When the TV switch is turned off in step SA29, the power of the TV receiver is turned off (step SA30), the process proceeds to step SA2 in FIG. 5, and the standby screen is displayed.

  FIG. 8 is a flowchart of incoming call detection processing. When an incoming call is detected by the RF block 4, it is determined whether or not the television receiver is on (step SB1), and if it is on, it is temporarily turned off (step SB2). When the television receiver is turned off or temporarily turned off, the incoming call is notified by the speaker 16 (step SB3). Then, it is determined whether or not the off-hook switch is turned on (step SB4). When this switch is turned on, the call notification is stopped, the line connection with the calling side is performed, and the call processing is performed (step). SB5). In the call process, it is determined whether or not the on-hook switch is turned on (step SB6). When this switch is turned on, the call-ending process such as line disconnection is performed (step SB7). Then, it is determined whether or not the television receiver is temporarily off (step SB8). If it is temporarily off, the television receiver is turned back on (step SB9). After the television receiver is turned on, or when the television receiver is not temporarily turned off and is off before the incoming call, the process returns to the main routine.

As described above, according to this embodiment, when receiving a terrestrial digital broadcast in which video data and text data are multiplexed by a television receiver, the CPU 1 displays an image of the video data and text data on the display unit 21. When the storage unit 20 that stores the display unit 21 is set to the displacement state shown in FIG. 1A, an image of video data is displayed in the upper half display area 22 of the display unit 21. When the storage unit 20 is set in the displacement state of FIG. 1B, the image of the video data is displayed on the display unit 21. Are displayed in all display areas, and image processing is performed in which the text data image is superimposed on the video data image.
Therefore, it is possible to display a terrestrial digital broadcast image normally and to display a terrestrial digital broadcast image normally regardless of whether the display unit is used in a portrait orientation or landscape orientation with a vertical and horizontal size of the display image of the broadcast data received. By controlling the display of text data images multiplexed with video data in broadcasting, it is possible to make TV images easier to see for users who mainly view video information and users who mainly view text information.

In this case, the mechanism portion 11 has a hinge portion 30 that couples the accommodating portion 20 and the main body 40 so as to be openable and closable and rotatable in response to an operation, and the accommodating portion 20 and the main body 40 are opened and rotated. The displacement sensor (not shown) which detects the displacement state of FIG. 1 (A) which has not been detected and the displacement state of FIG. 1 (B) in which the accommodating portion 20 and the main body 40 are opened and rotated is provided.
Therefore, the user can view the television image in a favorite display form only by operating the storage unit 20 of the display unit 21 without requiring a setting operation using a switch or the like.
Furthermore, in this case, the CPU 1 sets the top-and-bottom direction of the display image when the storage unit 20 is set to the displacement state of FIG. 1A and the storage unit 20 is set to the displacement state of FIG. Display control is performed so that the top and bottom directions of the display image in the case of
Therefore, the user can change the displacement state by operating the storage unit 20 of the display unit 21 without being aware of the top-and-bottom direction of the display image.

  The mobile phone in the above embodiment is configured such that the CPU 1 executes a communication control processing program stored in advance in the ROM 2, but receives the communication control processing program from an external server via the RF block 4. Then, it is possible to install in a rewritable nonvolatile memory such as a flash memory and execute it by the CPU 1. In this case, the invention of the program can be realized.

1 CPU
2 ROM
3 RAM
4 RF block 5 Tuner 6 OFDM demodulation unit 7 Video decoding unit 8 Audio decoding unit 9 Switch unit 10 VRAM
DESCRIPTION OF SYMBOLS 11 Mechanism part 12 Display driver 13 Microphone 14 Speaker 15 Earphone 20 Storage part 21 Display part 30 Hinge part 40 Main body

The present invention relates to a display terminal device having display screens having different aspect ratios .

However, in the above-mentioned Patent Document 1, it is only necessary to set which corner of the display surface starts for each pixel constituting an image captured by a pair of cameras according to the displacement state of the display unit. In other words, the image processing is not performed on an image in which the vertical and horizontal sizes of the display image are designated. For example, although the image displayed in FIG. 2A and the images displayed in FIGS. 2B and 2C are images obtained by capturing the same scenery, the vertical and horizontal sizes of the displayed image are completely different. Is different.
For this reason, when commercializing a mobile phone capable of receiving terrestrial digital broadcasting that has been broadcast in some areas since December 2003, the display unit is used in a portrait orientation and in a landscape orientation. Depending on the case, display in which the vertical and horizontal sizes of the display image are different is not allowed.
SUMMARY OF THE INVENTION An object of the present invention is to make it possible to display a video that is easier to see for both a user who mainly views video data and a user who mainly views character data .

Claim 1 is a display terminal device having display screens with different aspect ratios , wherein a selection means for selecting a video mode for displaying video data on the display screen, and the video mode is selected by the selection means and the video data when displaying includes determination means for orientation of the display screen to determine whether vertical or horizontal, when it is judged that vertically by said discrimination means, vertically the image data in the display screen And the first control means for controlling to display the character data at a position separated from the display area of the video data, and when the discrimination means determines that the video data is in landscape orientation, the video data And a second control means for controlling the character data to be displayed in a superimposed manner at a position in the display area of the video data. .

According to the present invention, when video data and character data are displayed on a display screen, it is possible to display a video that is easier to see for both users who mainly view video data and users who mainly view character data.

Claims (4)

A portable television broadcast receiving apparatus that receives a television broadcast in which video data and text data are multiplexed and displays them on a display screen,
Display form determination means for determining whether the display screen is in a vertically long display form or a horizontally long display form;
After the reception of the television broadcast is selected, separating means for sequentially receiving the transmitted television broadcast and sequentially separating video data and text data from the received television broadcast;
When displaying each text data sequentially separated by the separation means on the display screen together with the video sequentially separated by the separation means, the display form of the display screen at the time when the text is displayed is Whether to display the video data superimposed on the video display area in which the video data is displayed on the display screen based on the determination result, or the video display area in the display screen Display control means for controlling whether to display in a separate position;
A television broadcast receiver characterized by comprising: A telephone communication means capable of making a telephone call with another telephone device;
TV reception determination means for determining whether or not the TV broadcast was being received prior to the call at the end of the telephone call by the telephone call means;
Further comprising
If the television reception determination means is receiving a television broadcast, the display control means returns to the display control of the television broadcast, and the video data and text data of the television broadcast that are sequentially received at that time. Control whether to superimpose based on the display form of the display screen,
The television broadcast receiver according to claim 1, which is configured as described above. When displaying the video data sequentially separated by the separating means on the display screen, the display control means displays the display form of the display screen at the time when the video data is displayed by the display form determining means. Sequentially determining, based on the determination result, to control whether or not the video data is a full-screen landscape display in the display screen,
The television broadcast receiver according to claim 1 or 2, characterized in that it is configured as described above. A program for controlling a computer of a portable television broadcast receiver that receives a television broadcast in which video data and text data are multiplexed and displays them on a display screen,
The computer,
Display form determining means for determining whether the display screen is in a vertically long display form or a horizontally long display form;
After the reception of the television broadcast is selected, the separating means for sequentially receiving the transmitted television broadcast and sequentially separating video data and text data from the received television broadcast;
When displaying each text data sequentially separated by the separation means on the display screen together with the video sequentially separated by the separation means, the display form of the display screen at the time when the text is displayed is Whether to display the video data superimposed on the video display area in which the video data is displayed on the display screen based on the determination result, or the video display area in the display screen Display control means for controlling whether or not to display in a separated position,
A computer-readable program designed to function as a computer.

Images