JP4633760B2 - Digital broadcast receiver - Google Patents

Description

  The present invention relates to a digital broadcast receiving apparatus that receives satellite digital broadcasting, terrestrial digital broadcasting, and the like.

Conventionally, as satellite digital broadcasting using geostationary orbit satellites, BS (Broadcasting Satellite) digital broadcasting from broadcasting satellites and CS (
Communication Satellite) Digital broadcasting is being conducted. In addition, preparations for the start of terrestrial digital broadcasting, in which digital broadcasting is performed with an antenna installed on the ground, are also being made. For these digital broadcasts, standardization work is proceeding in the radio wave industry (ARIB), and it is called MPEG2 among the color video compression technologies internationally formulated by the Moving Picture Experts Group (MPEG). The technology of ISO (International Organization for Standardization) 13818 is employed (see, for example, Non-Patent Document 1 and Non-Patent Document 2). In MPEG2, encoded video and audio are packetized and transmitted in a fixed-length TS (Transport Stream) format suitable for transmission.

  FIG. 10 shows the structure of an MPEG-TS signal transmitted by digital broadcasting. With MPEG-TS signals, the contents of a plurality of services and programs including video (Video), audio (Audio), and data (Data) can be multiplexed and transmitted. Each service or program data is divided into a plurality of TS packets. Each TS packet has a fixed length of 188 bytes and includes a 4-byte packet header. The packet header includes a packet identifier called PID, and the TS packet can be identified. TS packets having the same PID constitute data of the same service or program. As special information identified by the PID of the TS packet, PSI (Program Specific Information), SI (Service Information), and the like are also used to facilitate selection and viewing from various types of services and programs. Further, a service called EPG (Electronic Program Guide) that provides a function that enables browsing, searching, and reservation of the contents of a program scheduled to be broadcast is also used. The EPG uses SI information. Data broadcast by the MPEG-TS signal is described using a document description language called BML (Broadcast Markup Language). EPG can also be provided using BML.

  FIG. 11 shows an outline of data broadcasting using BML. As the data in the MPEG-TS signal as shown in FIG. 10, the description content with the tag as shown as BML document 1 is transmitted. The description content of the BML document 1 defines the relationship between objects as shown as an object tree 2, for example. Specifically, the moving image plane 3, the still image plane 4 and the character / graphic plane 5 are overlapped. Assume that the generation of the display screens 6a and 6b is defined. As the moving image to be displayed on the moving image plane 3, one transmitted as a video out of the MPEG-TS signal can be used. In the still image plane 4, a background image and a window formed by cutting out a part thereof are transmitted as data. In the character / figure plane 5, button display data for the itinerary 5a, fee 5b and reservation 5c are transmitted as event elements. These event elements are to be selected by the viewer, and a focus display is performed such that, for example, the top stroke table 5a is selected as an initial state. The display screen 6a is formed so that the moving image plane 3, the still image plane 4, and the character / graphic plane 5 are sequentially stacked on top of each other with the focus display of the process table 5a. The moving image on the moving image plane 3 is subjected to scaling processing so as to be reduced in accordance with the window 4 a of the still image plane 4.

  On the display screen 6a, the selection of the event element can be changed by the operation of the remote control device 7. When the viewer presses the down arrow key 7a of the remote control device 7, the event 8 of the remote control key Down occurs, and the focus moves to the charge 5b below the travel table 5a on the character / graphic plane 5 as the response operation 9. The entire display screen 6b is displayed. When the viewer presses the enter key 7b of the remote control device 7, an operation corresponding to the event element that is focused at that time is performed. This operation is described in the BML document 1. For example, when the itinerary 5a is selected, a trip schedule is displayed, and when a fee 5b is selected, a trip fee is displayed. The remote control device 7 is also provided with numeric keys 7c for inputting numerical values, special keys called blue, red, green and yellow color buttons 7d.

  Data broadcasting realized by BML as shown in FIG. 11 is assumed to be received by a home-use television receiver, and it is assumed that the remote controller 7 is used for the operation. On the other hand, digital broadcasting can be received by a mobile body, data broadcasting can also be provided, and it is expected to be used effectively for transmission of traffic information. However, in the in-vehicle receiver, in consideration of safety, an operation using a touch panel is preferable instead of a remote control operation. In some cases, it is more convenient for a personal television receiver or the like to be able to give instructions directly on the screen.

  The touch panel is formed on the surface of a liquid crystal display device or the like (see, for example, Patent Document 1). The touch panel is, for example, a transparent resistance film, and performs position detection when the resistance value decreases due to contact pressure. In order to guide the operator to which part of the touch panel should be touched, an operation image such as a button is displayed on the display device. A display device equipped with a touch panel also displays an image on the surface side of the in-vehicle device for operation. For a touch panel using a large plasma display device (PDP), it has also been proposed to expand the functions (for example, see Patent Document 2).

JP-A-9-44307 (page 3, FIG. 4) JP 2000-148347 A Edited by the Institute of Image Information and Television Engineers, “Digital Broadcasting Station System”, 1st Edition, Ohm Corporation, November 20, 2001, p. 13-130 Satoshi Yamada, “Digital Broadcasting Technology and Services”, first edition, Corona Inc., September 7, 2001, p. 36-166, 265-280

  As described above, in digital broadcasting, data described in BML is transmitted on the premise of operation by the remote control device 7. Regarding these operations, in particular, in-vehicle devices, it is better to use a touch panel that only needs to see the display screen than to use the remote control device 7 that needs to see both the remote control device 7 and the display screen alternately during the operation. preferable. In particular, since the time that the driver can operate is limited to a short time such as when the vehicle is stopped, an operation suitable for data broadcasting by the remote control device 7 cannot be performed, and it is difficult to use the data effectively. Even in a home television receiver, it is easier to understand by direct contact with the screen.

  An object of the present invention is to provide a digital broadcast receiver capable of effectively using data broadcast on the premise of using a remote control device in digital broadcast such as BML.

The present invention ( 1 ) includes a receiving means capable of receiving a digital broadcast including information on operation buttons of a remote control,
Display means capable of displaying an operation image for a touch operation according to an operation button of the remote control;
A touch panel for detecting a touch operation on the display means;
Control means for performing control so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected when a touch operation on the operation image is detected by the touch panel. ,
The display means is a digital broadcast receiving apparatus that displays the operation image on an image based on the digital broadcast received by the receiving means.

According to the present invention ( 1 ), the receiving means can receive a digital broadcast including information relating to the operation buttons of the remote control. The display means can display an operation image for a touch operation corresponding to an operation button of the remote controller. The touch panel detects a touch operation on the display means. When a touch operation on the operation image is detected by the touch panel, control is performed by the control unit so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected is performed. The display means can display the operation image on the video based on the digital broadcast received by the receiving means.

Further, the present invention ( 2 ) includes a receiving means capable of receiving a digital broadcast including information relating to operation buttons of the remote control,
Display means capable of displaying an operation image for a touch operation according to an operation button of the remote control;
A touch panel for detecting a touch operation on the display means;
Control means for performing control so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected when a touch operation on the operation image is detected by the touch panel. ,
A digital broadcast receiving apparatus comprising switching means for switching between display and non-display of the operation image in the display means.

According to the present invention ( 2 ), the receiving means can receive a digital broadcast including information relating to the operation buttons of the remote control. The display means can display an operation image for a touch operation corresponding to an operation button of the remote controller. The touch panel detects a touch operation on the display means. When a touch operation on the operation image is detected by the touch panel, control is performed by the control unit so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected is performed. Then, the switching means can switch between display and non-display of the operation image on the display means.

Further, the present invention ( 3 ) includes a receiving means capable of receiving a digital broadcast including information on operation buttons of the remote control,
Display means capable of displaying an operation image for a touch operation according to an operation button of the remote control;
A touch panel for detecting a touch operation on the display means;
Control means for performing control so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected when a touch operation on the operation image is detected by the touch panel. ,
A digital broadcast receiving apparatus comprising moving means for moving a display position of the operation image on the display means.

According to the present invention ( 3 ), the receiving means can receive a digital broadcast including information on operation buttons of the remote control. The display means can display an operation image for a touch operation corresponding to an operation button of the remote controller. The touch panel detects a touch operation on the display means. When a touch operation on the operation image is detected by the touch panel, control is performed by the control unit so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected is performed. Then, the display position of the operation image on the display means can be moved by the moving means.

The present invention ( 4 ) also includes a receiving means capable of receiving a digital broadcast including information relating to the operation buttons of the remote control,
Display means capable of displaying an operation image for a touch operation according to an operation button of the remote control;
A touch panel for detecting a touch operation on the display means;
Control means for performing control so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected when a touch operation on the operation image is detected by the touch panel. ,
The digital broadcasting reception characterized in that the control means controls to delete the operation image displayed on the display means when a touch operation on the operation image is not detected within a predetermined time by the touch panel. Device .

According to the present invention ( 4 ), the receiving means can receive a digital broadcast including information on operation buttons of the remote control. The display means can display an operation image for a touch operation corresponding to an operation button of the remote controller. The touch panel detects a touch operation on the display means. When a touch operation on the operation image is detected by the touch panel, control is performed by the control unit so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected is performed. When the touch operation on the operation image is not detected within a predetermined time by the touch panel, the operation image displayed on the display unit is deleted by the control unit.

According to the present invention ( 1 ), when a touch operation on an operation image for a touch operation corresponding to an operation button on the remote control is detected by the touch panel, the operation button on the remote control corresponding to the operation image in which the touch operation is detected Therefore, the same operation as the operation button of the remote controller can be easily realized using the touch panel, and the convenience can be improved. Furthermore, an operation image for a touch operation corresponding to, for example, an operation button on the remote control and a color button on the remote control is displayed on the video based on the digital broadcast received by the reception unit, so that the operator is displayed on the display unit. While confirming the video based on the digital broadcast, it is possible to perform a touch operation on the operation image and to improve convenience.

According to the present invention ( 2 ), when a touch operation on an operation image for a touch operation corresponding to an operation button on the remote control is detected by the touch panel, the remote control operation corresponding to the operation image in which the touch operation is detected is performed. Since the same operation as the button is performed, the same operation as the operation button of the remote controller can be easily realized using the touch panel, and convenience can be improved. Further, the switching means appropriately switches between display and non-display of an operation image on the display means, for example, an operation image for a touch operation according to a remote control operation button and a remote control color button, as required by the operator. Can do. As a result, for example, an operation image can be displayed on the display means when a touch operation on the operation image is necessary, and an operation image can be prevented from being displayed on the display means when the touch operation on the operation image is unnecessary. It is possible to avoid the display of the display means from being complicated by the operation image that is not operated.

According to the present invention ( 3 ), when a touch operation on an operation image for a touch operation corresponding to an operation button on the remote control is detected by the touch panel, the operation of the remote control corresponding to the operation image in which the touch operation is detected is detected. Since the same operation as the button is performed, the same operation as the operation button of the remote controller can be easily realized using the touch panel, and convenience can be improved. Further, the moving means can move the display position of the operation image on the display means, for example, the operation image for the touch operation corresponding to the operation button on the remote control and the color button on the remote control. Thus, for example, even when a part of the video based on the digital broadcast received by the receiving unit and the operation image overlap, and the part of the background video is hidden by the operation image and displayed, the operation unit displays the operation image. By moving the position, a part of the video that is hidden by the operation image can be seen by the operator.

According to the present invention ( 4 ), when a touch operation on an operation image for a touch operation corresponding to an operation button of the remote control is detected by the touch panel, the operation of the remote control corresponding to the operation image in which the touch operation is detected is detected. Since the same operation as the button is performed, the same operation as the operation button of the remote controller can be easily realized using the touch panel, and convenience can be improved. Furthermore, when the touch operation on the operation image is not detected by the touch panel within a predetermined time, the operation image displayed on the display unit is deleted, so that the display on the display unit is complicated by the operation image not operated within the predetermined time. You can avoid that.

  FIG. 1 shows (a) a hardware configuration of an in-vehicle digital broadcast receiving apparatus 10 as an embodiment of the present invention, and (b) shows a software configuration. Note that the present invention is not limited to being mounted on a vehicle, but can be applied to a stationary television receiver for home use or the like.

  As shown in FIG. 1 (a), the in-vehicle digital broadcast receiver 10 according to the present embodiment receives digital broadcast radio waves with an antenna 11, and selects and amplifies with a tuner 12. The demodulator 13 performs conversion into a digital signal. The DEMUX 14 separates data for each service type from the multiplexed state as shown in FIG. The audio decoder 15 demodulates the audio signal and derives it as an Audio output. The video decoder 16 demodulates the video signal, performs an overlay process on an OSD (On Screen Display) 17, and displays it as an image on the display 18. A transparent touch panel 19 is attached to the display screen of the display 18.

  Each unit of the in-vehicle digital broadcast receiving apparatus 10 as described above is controlled by the CPU 21 via the control bus 20. The CPU 21 performs a control operation according to a program stored in advance in a ROM or the like included in the memory 22. The memory 22 includes a RAM that temporarily stores data necessary for control.

  The software configuration shown in FIG. 1B is realized by a program operation of the CPU 21. The software is based on RTOS 30 which is a real-time type operating system, and various programs 31 are added to a form in which various drivers 31 are added as device drivers. A UI (User Interface) 32 for performing the above interface operates. In the UI 32, a BML browser 33 that displays data described in BML like display screens 6a and 6b shown in FIG. The UI 32 including the BML browser 33 is controlled including a display (drawing) control 34, a touch panel control 35, a tuner control 36, a demodulator control 37, a decoder control 38, a reception control 39, and the like.

  In the present embodiment, the BML browser 33 uses the conversion / management 40. In the conversion / management 40, data for the BML browser 33, which is premised on the use of a home television receiver and a remote control device, is converted so that the display 18 and the touch panel 19 can be used. For the data conversion, for example, a screen of a 6.5-inch display 18 having a horizontal length of 800 pixels × a vertical length of 480 pixels and a diagonal length of about 165 mm, a horizontal length of 1920 pixels × vertical 1080 pixels, and a diagonal length. Appropriate conversion of an image on the premise of a screen of a household television receiver having a size of about 32 inches having a length of about 813 mm is also included. For such conversion, data management 41 is performed, and various mono media 42 are also used. Along with the BML browser 33, program information management 43 using EPG or the like is also performed, and a program selection 44 or the like becomes possible.

  That is, the in-vehicle digital broadcast receiving device 10 of the present embodiment accepts an operation input on the receiver side and provides broadcast information reflecting the input result on the premise of a key operation on a remote control device having a predetermined function. Based on image information included in the operation input information and the touch panel 19 that can be received by being mounted on a vehicle and can be input by touching the surface. A function of the operation input to the remote control device is analyzed in the area for the touch operation of the touch panel based on the analysis result based on the analysis result by analyzing the display 18 which is a display means for displaying an image and the remote control device included in the operation input information. Is assigned by the conversion / management 40 in response to a touch operation on the touch panel 19. Therefore, depending on the region where the contact operation is performed includes a CPU21 as a control means for controlling so as to execute a response corresponding to the operation input to pseudo-remote controller.

  The in-vehicle digital broadcast receiving apparatus 10 assigns an operation input function to the remote control device to the area of the touch panel 19 by the conversion / management 40, and if there is a touch operation to the allocated area, the operation input to the pseudo remote control apparatus Therefore, it is possible to effectively use data broadcast on the assumption that the remote control device is used in digital broadcasting without using the remote control device.

  FIG. 2 shows a basic operation procedure of the UI 32 in the present embodiment. This process is performed when data broadcasting is received. The procedure starts from step a0. In step a1, start page data is acquired from the MPEG-TS data portion shown in FIG. In step a2, the conversion / management 40 performs analysis of event elements included in the acquired data, analysis of drawing elements, and association between events and drawing. In step a3, drawing processing by the BML browser 33 is performed. In step a4, it is determined whether or not the touch panel 19 has been operated, and the determination is repeated until it is operated. When the touch panel 19 is operated, it is determined in step a5 whether or not the data broadcasting is finished. If not completed, processing such as event determination, focus movement for distinguishing and displaying the selected element, and event generation are performed in step a6. In step a7, it is determined whether or not page data is requested when an event occurs. If not requested, the process returns to step a3. If requested, page data is newly acquired from the MPEG-TS signal in step a8, and the process returns to step a2. When it is determined in step a5 that the data broadcast is finished, the procedure is also finished in step a9.

  That is, in the digital broadcast received in this embodiment, the operation input information is associated with an event generated by an input operation to the remote control device, and is described in BML, which is a preset broadcast document description language. It is included as content. The touch panel 19 is installed on the surface of a screen that displays an image based on the image information included in the operation input information on the display 18, and the BML browser 33 corresponds to the allocation of the area on the touch panel 19 by the conversion / management 40. Then, display for operation guidance is performed on the display 18. When a contact operation is performed on the area of the touch panel 19 corresponding to the operation guidance display, the CPU 21 generates an event that is generated by an operation input to the remote control device that is virtually assigned to the area. Control. The touch panel 19 is installed on the surface of the display screen on which the display 18 displays an image based on the operation input information. Therefore, if the touch panel 19 touches the area of the touch panel 19 on the button display as selected and determined by the remote control device, A selection operation can be performed on an image based on the direct operation input information. When a contact operation is performed on the area of the touch panel 19 corresponding to the operation guidance display, the CPU 21 generates an event that is generated by an operation input to the remote control device that is virtually assigned to the area. Since the control is performed, the same operation can be performed without using the remote control device.

  FIG. 3 shows an operation procedure in which the conversion / management 40 realizes the function of the soft remote controller in this embodiment. When the operation input information is changed (or at a predetermined time interval), the procedure is started. In step b1, the conversion / management 40 compares the display element analyzed in step a2 of FIG. 2 with the event. In step b2, it is determined whether or not there is an event having no display element. The event having no display element is, for example, an operation of pressing a special key such as a numeric key 7c or a color button 7d on the remote control device 7 in FIG. When such an event exists, in step b3, the position displayed as the soft remote controller is first set to the default position. In step b4, it is determined whether or not the soft remote controller at the default position overlaps the display element to be displayed according to BML. When it is determined that they overlap, in step b5, a search is made so that the display position of the soft remote controller does not overlap the display element. In step b6, the soft remote controller determines whether or not there is a display position that does not overlap the display element. If it is determined that it does not exist, the timer process is turned on in step b7 to operate. Next, in step b8, the position of the soft remote controller is changed, and in step b9, the soft remote controller is drawn.

  When it is determined in step b6 that the display position of the soft remote controller exists, the soft remote controller position is changed in step b8 without performing the timer process ON in step b7. When it is determined in step b6 that the display position of the soft remote controller does not exist, the timer process is turned on in step b7. If the timer process is ON, after step b9, the process returns from step b10 to step b8 to change the display position of the soft remote controller. If the timer process is not ON, the procedure ends at step b11 after step b10.

  When it is determined in step b4 that the soft remote controller at the default position does not overlap with the display element, the soft remote controller is drawn at the default position in step b9, and the timer process is not ON, so the procedure from step b10 to step b11 is performed. Exit. Since the soft remote control is displayed at the default position, it can be easily understood by the receiver of the digital broadcast. When it is determined in step b2 that there is no event having no display element, the procedure ends in step b12.

  FIG. 4 shows an example of soft remote control display corresponding to the color button 7d shown in FIG. FIG. 4A shows a state where the soft remote controllers 51, 52, 53, 54 are displayed at the default position of the display screen 50. FIG. FIG. 4B shows a state where the positions of the soft remote controllers 51, 52, 53, and 54 are changed and displayed while avoiding the display element 55 displayed on the display screen 50. It is also possible to change only a part of the soft remote controllers 51, 52, 53, 54 without changing the positions.

  That is, in the conversion / management 40, when the operation input function of the remote control device includes an operation input function that cannot be assigned a region by analyzing the operation, the operation input function is also used for the touch operation of the touch panel 19. Allocate area for soft remote control function. Corresponding to the area for the soft remote control function, a display for operation guidance of the soft remote control function is displayed on the display 18. Remote keys that are assumed to be used in data broadcasting are provided with special keys such as numeric keys and color keys. A special key or the like is often not included in the display of an image based on input information for selecting an event element as shown in FIG. Even if the special key is not included as an event element, when it is pressed as an operation input to the remote control device, it is necessary to perform a response operation set for each special key.

  The conversion / management 40 corresponds to a special key or the like, and enables operation with the touch panel 19 as a soft remote control function even when there is no description of element display in the BML language in the input operation information. Even an event whose display is not described in the operation input information can be realized by operating the touch panel 19.

  In the conversion / management 40, the area of the touch panel 19 assigned for the soft remote control function is assigned by changing the position so that it does not overlap the area assigned by the analysis of the operation. Since the area allocated for the soft remote control function is allocated to the touch panel 19 so as not to overlap with the area allocated by the analysis of the operation, the input operation of the soft remote control and the operation to the event element based on the input operation information are It can be easily distinguished.

  Further, in the conversion / management 40, when there is no area to be allocated for the soft remote control function, the timer process is turned on and the area to be allocated is moved at regular intervals. Even if the area of the event element and the area for the software remote control function can only be arranged on the touch panel 19, the area allocated for the software remote control function is moved at regular intervals. Even if the background image hidden by the operation guidance display is not visible, it can be made visible after a certain period of time.

  Furthermore, if there is no touch panel area that can be assigned to the soft remote control function so that it does not overlap with the display of the image based on the operation input information, the soft remote control function is enabled or disabled at preset time intervals. Can be repeated. As a result, the software remote control function becomes effective at regular time intervals and can be used. Even if the software remote control function is enabled, if the preset time elapses, the software remote control function is disabled and the operation guidance display is also stopped. Therefore, the entire image based on the operation input information is displayed for the software remote control function. The operation guidance display can be displayed without hiding.

  FIG. 5 shows a control procedure for operating or stopping the function of the soft remote controller according to the selection of the digital broadcast receiver in this embodiment. The procedure is started at predetermined time intervals, and in step c1, it is determined whether or not a voice recognition device is present. Since the hardware configuration shown in FIG. 1A does not exist, the process proceeds to step c2. In step c2, for example, in FIG. 4, it is determined whether or not a touch is made in an area where no element display is performed on the display screen 50 in which the soft remote controllers 51, 52, 53, and 54 are not displayed. If not, the process ends. When touched, in step c3, soft remote controllers 51, 52, 53, and 54 are displayed as shown in FIG. In step c4, it is determined whether or not the soft remote controllers 51, 52, 53, 54 have been operated within a certain time, and the determination is repeated until the software remote controller 51, 52, 53, 54 is operated or until a certain time has elapsed. When there is an operation on the software remote controllers 51, 52, 53, 54 or when a certain time has elapsed, the display of the software remote controllers 51, 52, 53, 54 is erased in step c5, and the procedure is terminated in step c6.

  That is, in the conversion / management 40, when the operation input for the software remote control function is not performed within a predetermined time, the assignment for the software remote control function is stopped, and the display for the operation guidance for the software remote control function is also stopped. As a result, the display on the display 18 is only based on the operation input information, and the display can be prevented from being complicated by the soft remote control function that is not operated.

  Further, the conversion / management 40 assigns an area for operating the soft remote control function to the area of the touch panel 19 corresponding to the area outside the area where the image based on the operation input information is displayed on the display 18, and performs the touch operation on the area. By detecting, the function of the soft remote control is activated. The function of the soft remote controller can be activated by touching the area of the touch panel 19 corresponding to the area outside the area where the image based on the operation input information is displayed on the display 18, so that the digital broadcast receiver needs as necessary. It can be selected appropriately.

  If it is determined in step c1 of FIG. 5 that a voice recognition device is present, whether or not a touch on a display area other than the same elements as in step c2 is detected or a voice instruction is recognized in step c7. Judging. If no touch or recognition is made, the process ends. When touching or recognition is performed, the software remote controllers 51, 52, 53, and 54 are displayed in step c3. Although a voice recognition device is not shown in FIG. 1A, a voice recognition function may be mounted on a navigation device or the like that is often mounted at the same time in the case of in-vehicle use. A recognition device may be added.

  That is, in this embodiment, when the voice recognition means that recognizes the voice input is further included, the conversion / management 40 may activate the soft remote control function in response to the result of the voice recognition means recognizing the predetermined instruction. it can. Thus, if the digital broadcast receiver gives an instruction to activate the soft remote control function to the voice recognition means that recognizes the voice input by voice, the soft remote control function can be activated without touching the touch panel 19. The remote control function can be appropriately selected according to the needs of the digital broadcast receiver.

  FIG. 6 shows a control procedure for making it easier to operate the software remote control function in this embodiment. The procedure starts when the information for operation input changes (or at a predetermined time interval), and in step d1, the conversion / management 40 analyzes the display element as in step a2 of FIG. In step d3, it is determined based on a predetermined criterion whether or not display elements are crowded. When it is determined that the display elements are crowded and the display is crowded, the process moves to step d3, where it is determined whether or not the crowded area has been touched for a certain period of time, and it must be touched within a certain period of time. If YES, go to step d5. When touched, in step d4, the vicinity of the touched area is enlarged and displayed. In step d5, the soft remote control function repeats drawing and erasing at regular time intervals as described above. In step d6, it is determined whether or not an operation on the soft remote controller or the enlarged display element is within a predetermined time, and the determination is repeated until the predetermined time has elapsed or the operation has been performed. When the fixed time has elapsed or the operation is performed, the enlarged display is terminated at step d7, and the procedure is terminated at step d8. When it is determined in step d2 that the display elements are not crowded, in step d9, the procedure is terminated without an enlarged display.

  FIG. 7 shows an example of criteria for determining whether or not display elements are crowded. When the distance D between the center lines 61a and 62a of the display elements 61 and 62 displayed adjacent to each other on the display screen 60 is less than the resolution of the touch panel 19, it is impossible to identify an event or the like for selecting the display elements 61 and 62. become. Therefore, even if the display 18 has a sufficient resolution and the display elements 61 and 62 can be clearly distinguished, the event cannot be distinguished by the touch operation of the touch panel 19. Such data management is performed by the data management 41 in FIG. 1B, and can be used as a criterion for determining whether or not display elements are crowded.

  That is, in the change / management 40, it is determined according to a predetermined criterion whether or not allocation of an area in which the touch operation of the touch panel 19 is performed based on the analysis result is complicated. In response to the detection, reassignment is performed so as to enlarge the vicinity of the region where the contact is detected, and a response to the event is executed according to the detection result of the contact to the reassigned region. When the area of the touch panel 19 to be assigned as an event element is complicated, it may be possible to determine which event element has been selected depending on the resolution of the display 18 and the resolution of the touch panel 19 and malfunction. If it is determined that the condition is complicated according to a predetermined standard, when the first contact is detected, reassignment is performed so as to enlarge the vicinity of the contact detection position, and an operation such as event element selection is performed by detecting the contact position for the reassigned result. Therefore, it is possible to select an operation that reliably reflects the intention of the digital broadcast receiver.

  Further, in the change / management 40, when the touch operation to the touch panel 19 is not detected within a predetermined time range after the re-allocation, the re-allocation of the area is stopped. Even if the initial contact position is not appropriate and the desired operation cannot be performed by enlargement near the contact position, the reassignment is stopped and the original assignment state is restored after a predetermined time has elapsed. Therefore, unnecessary operations can be omitted.

  FIG. 8 shows that in this embodiment, the conversion / management 40 displays a cursor on the display 18 and an event element that is associated with a predetermined event and can be specified by the position of the cursor, and the remote control device moves the cursor. As an event, a control procedure that corresponds to the movement of the touch position on the touch panel 19 is shown. The procedure is started at predetermined time intervals, and in step e1, it is determined whether or not the touch panel 19 has been touched. If there is no touch within a certain time, the process ends. When touched, in step e2, coordinate confirmation processing is performed to generate a transition event by moving the touched position. In step e3, it is determined whether or not the touch is finished. If it is determined that the touch has not ended, the process returns to step e2 to repeat the coordinate confirmation process. When it is determined in step e3 that the touch is ended, it is determined in step e4 whether an element exists around the touch end position. When it is determined that the element exists, in step e5, determination processing similar to that performed when the determination key 7b is pressed on the remote controller 7 as shown in FIG. 11 is performed, and the procedure ends in step e6.

  That is, as an event in which the remote control device determines an event element at the position of the cursor, an operation of stopping and leaving the touch panel 19 is made to correspond. The digital broadcast is an operation in which a cursor is displayed by operation input information on the display 18, the cursor is moved by the operation of the arrow key of the remote control device, and the event element indicated by the cursor is selected by the operation of the decision key. An operation of moving the contact position while the receiver touches the touch panel 19 and selecting an event element indicated at a position away from the touch panel 19 can be used instead.

  If it is determined in step e4 in FIG. 8 that no element is present in the vicinity, the determination process in step e5 is not performed, and the procedure ends in step e6. When the event input does not exist in the operation input information on the display 18 corresponding to the position where the touch on the touch panel 19 stops and leaves, it is not interpreted as a determination operation, and therefore the determination key of the remote control device is not pressed. Can be used to cancel the selection operation.

  FIG. 9 shows a control procedure in which the conversion / management 40 displays the event elements on the display 18 in a display mode set in advance so as to be distinguishable from other images. The procedure is started at predetermined time intervals, and in step f1, it is determined whether or not an event element exists. When it is determined that there is an event element, it is determined in step f2 whether there is a user setting. If there is no user setting, it is determined in step f3 whether or not to change a preset default setting. From the data on the display screen, if the fill color or the like in the default setting of the event element is close to the color of other elements in the display screen, it is automatically determined to change the default setting. In this automatic determination, the set color is determined in step f4. For example, the color of the change candidate is set in advance, and a color having a large difference from the colors of other elements may be selected. When it is determined in step f2 that there is a user setting, in step f4, the color set by the user who is the digital broadcast receiver is determined. Next, in step f5, a marking process using the determined color is performed, and the procedure ends in step f6. If it is determined in step f1 that no event element exists, the marking process is not performed and the procedure is terminated.

  In other words, if an event element in which some event exists is selected, it is performed with a predetermined marking or the like as a display mode that can be distinguished from other images, which element can be operated among the display elements, Digital broadcast recipients can be identified at a glance. When the event element is displayed in a display mode in which the fill color of the display is changed, the event element can be easily distinguished from other elements by the change of the fill color. In addition, as a change accepting unit for accepting a change specification of the fill color using the BML browser 33 or the like, the event element to be displayed on the display 18 in response to the change specification from the user who is a digital broadcast receiver is displayed with the fill color changed. Therefore, it can be specified that the digital broadcast receiver reflects his / her preference or changes the color of the event element that is difficult to see.

1 is a block diagram showing a schematic hardware configuration and a software configuration of an in-vehicle digital broadcast receiving apparatus 10 according to an embodiment of the present invention. It is a flowchart which shows the basic operation | movement procedure of UI32 in embodiment of FIG. 2 is a flowchart showing a control procedure of a soft remote control function in the embodiment of FIG. It is a figure which shows the example of the display screen 50 displayed by a soft remote control function in embodiment of FIG. It is a flowchart which shows the procedure which operates a soft remote control function in embodiment of FIG. 2 is a flowchart illustrating a procedure for receiving an operation by enlarging a part of a complicated display element in the embodiment of FIG. 1. It is a figure which shows the example of the judgment criterion of whether it is complicated in the procedure of FIG. 2 is a flowchart illustrating a procedure for performing selection by moving a cursor in the embodiment of FIG. 1. FIG. 2 is a flowchart showing a procedure for displaying an event element separately from other displays in the embodiment of FIG. 1. FIG. It is a figure which shows the MPEG-TS signal transmitted by digital broadcasting. It is a figure which shows the outline | summary of BML which describes data by digital broadcasting.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 In-vehicle digital broadcast receiver 18 Display 19 Touch panel 21 CPU
22 Memory 30 RTOS
32 UI
33 BML browser 40 Conversion / management 41 Data management 50, 60 Display screen 51, 52, 53, 54 Soft remote control 55, 61, 62 Display element

Claims (4)

A receiving means capable of receiving a digital broadcast including information on operation buttons of the remote control;
Display means capable of displaying an operation image for a touch operation according to an operation button of the remote control;
A touch panel for detecting a touch operation on the display means;
Control means for performing control so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected when a touch operation on the operation image is detected by the touch panel. ,
The digital broadcast receiving apparatus , wherein the display means displays the operation image on a video based on the digital broadcast received by the receiving means. A receiving means capable of receiving a digital broadcast including information on operation buttons of the remote control;
Display means capable of displaying an operation image for a touch operation according to an operation button of the remote control;
A touch panel for detecting a touch operation on the display means;
Control means for performing control so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected when a touch operation on the operation image is detected by the touch panel. ,
The display of the operation image on the display unit hide the features and to Lud digital broadcast receiving apparatus further comprising a switching means for switching. A receiving means capable of receiving a digital broadcast including information on operation buttons of the remote control;
Display means capable of displaying an operation image for a touch operation according to an operation button of the remote control;
A touch panel for detecting a touch operation on the display means;
Control means for performing control so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected when a touch operation on the operation image is detected by the touch panel. ,
The features and to Lud digital broadcast receiving apparatus further comprising moving means for moving the display position of the operation image on the display unit. A receiving means capable of receiving a digital broadcast including information on operation buttons of the remote control;
Display means capable of displaying an operation image for a touch operation according to an operation button of the remote control;
A touch panel for detecting a touch operation on the display means;
Control means for performing control so that the same operation as the operation button of the remote controller corresponding to the operation image in which the touch operation is detected when a touch operation on the operation image is detected by the touch panel. ,
Wherein, when the touch operation to the operation image by the touch panel is not detected within the predetermined time, the operation image control features and to Lud digital to to erase displayed on the display means Broadcast receiving device.

Images