JP2007166316A - Image display apparatus and image display system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display apparatus and an image display system to make a viewer understand which transmission source image is each of a plurality of images displayed. <P>SOLUTION: An IEEE 1394 interface 11 receives an image signal from connected external equipments 5a, 5b, 5c or the like and acquires an equipment information from the external equipments 5a, 5b, 5c or the like. A composition processing portion 14b conducts the composition processing of each image so as to become a list image arranging images of the external equipments 5a, 5b, 5c or the like when an image listing key 3a is pressed down. An OSD processing portion 14c conducts the OSD processing to composite a semitransparent OSD image to show the equipment information on the list image composition-processed by the composition processing portion 14b. The viewer understands which image of the external equipments 5a, 5b, 5c or the like is each of the displayed plural images thereby. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a video display system and a video display device as a component of the video display system. More specifically, the present invention relates to an IEEE (Institute of Electrical and Electronics Engineers) 1394 storing device information for identifying the device itself. Connect to a plurality of devices such as compatible devices, select one of the plurality of video signals transmitted from the device, and arrange the video related to the selected video signal and the video related to the unselected video signal side by side The present invention relates to a video display device to be displayed.

  In recent years, digitalization has progressed also in the video field, and video display apparatuses that connect to a plurality of devices compatible with the IEEE 1394 standard and display a video related to a video signal transmitted from the connected devices have been put into practical use.

  In Patent Document 1, among a plurality of input video signals, a signal detection unit that detects whether or not a signal is present and one or a plurality of video signals that are detected as having a signal by the signal detection unit are the same. Sub-screen processing means for processing and outputting to be displayed as a sub-screen on the screen, an output signal of the sub-screen processing means, and a screen for combining and displaying a signal selected as a parent screen among a plurality of input video signals And a display unit having a screen selection unit that stops displaying the sub-screen and displays the video as the parent screen when one of the displayed sub-screens is selected on the screen. It is disclosed.

According to the above-described video display device, by selecting one of the displayed sub-screens, the video is displayed as the main screen, so the viewer can check the video on the sub-screen, The video can be switched and the operability when switching the video is improved.
JP-A-8-32892

  However, in the technique disclosed in Patent Document 1, since each video is displayed on one screen, the viewer can grasp what video signal of each video is output from each device. It is impossible to grasp which device the transmission source of the displayed video belongs to. That is, there is a problem that it can only be grasped that the video is input to any signal input unit (first input unit, second input unit,...).

  The present invention has been made in view of such circumstances, and selects one of a plurality of input video signals, and arranges a video related to the selected video signal and a video related to the unselected video signal. When displaying, by acquiring transmission source information that identifies the transmission source of each video signal, and by combining the video related to the acquired transmission source information with the video related to the selected and unselected video signals, It is an object of the present invention to provide a video display device that allows a viewer to grasp which source video is displayed.

  Further, according to the present invention, when the transmission source information includes the state information indicating the power supply on / off state of the transmission source, when the state information indicating that the power supply is disconnected is acquired, the power is displayed on the corresponding video. It is an object of the present invention to provide a video display device that can allow a viewer to grasp that a corresponding transmission source is not operating by further composing a video indicating that it is disconnected.

  Furthermore, the present invention is configured to control the dimensions of each video according to the acquired state information. For example, when the power source of the transmission source is cut off, the video transmitted to the video display device Therefore, it is considered sufficient to let the viewer know that the source is connected, so the video size should be smaller than the size of the source video in operation. Thus, an object of the present invention is to provide a video display device capable of enlarging the video of the transmission source in operation.

  Furthermore, the present invention is configured to display the video related to the selected video signal larger than the video related to the unselected video signal, so that even if the viewer is viewing the selected video, It is an object of the present invention to provide a video display device that can minimize the influence on viewing.

  Furthermore, the present invention has a configuration in which when video information for identifying the video signal is superimposed on the video signal, the video information is separated from the video signal, and the video related to the separated video information is further synthesized. Accordingly, an object of the present invention is to provide a video display device that allows a viewer to grasp what kind of video each displayed video is.

  Furthermore, the present invention selects a plurality of devices storing device information for identifying the devices themselves and one of a plurality of video signals transmitted from the devices, and an image related to the selected video signal. When the video related to the unselected video signal is displayed side by side, the device information is acquired from each device, and the video related to the acquired device information is combined with the video related to the selected and unselected video signal. Accordingly, it is an object of the present invention to provide a video display system that allows a viewer to grasp which device's video is displayed.

  The video display device according to the present invention includes a selection unit that selects one of a plurality of input video signals, and a display that displays the video related to the selected video signal and the video related to the unselected video signal side by side. An acquisition means for acquiring transmission source information for identifying the transmission sources of the plurality of video signals, and a video related to the transmission source information acquired by the acquisition means is selected and not selected. And a synthesizing unit for synthesizing the video signal.

  In the present invention, one of the plurality of input video signals is selected, and the video related to the selected video signal and the video related to the unselected video signal are displayed side by side. Also, transmission source information for identifying the transmission source of each input video signal is acquired, and the video related to the acquired transmission source information is combined with the video related to the selected and unselected video signals. Thus, the viewer can easily grasp the transmission source of each displayed video.

  In the video display device according to the present invention, when the transmission source information includes state information indicating a power-on / off state of a transmission source that transmits the video signal, the combining unit is turned off. When the state information indicating that is acquired, a video indicating that the power is cut off is further combined with the corresponding video.

  In the present invention, when the state information indicating that the power is turned off is acquired, a video indicating that the power is turned off is further combined with the corresponding video. Thereby, the viewer can grasp that the power source of the corresponding transmission source is cut off, that is, the transmission source device is not operating.

  The video display device according to the present invention is characterized in that the display means controls the dimensions of each video in accordance with the acquired state information.

  In the present invention, the dimensions of each image are controlled in accordance with the acquired operation state. For example, if the source device is turned off, there is no video being sent to the video display device, so it is sufficient to let the viewer know that the device is connected. it is conceivable that. Therefore, by making the size of the image smaller than the size of the image of the operating device, the image of the operating device is relatively enlarged so that the image of the operating device can be easily confirmed by the viewer. Can do.

  The video display device according to the present invention is characterized in that the display means displays a video related to a selected video signal larger than a video related to an unselected video signal.

  In the present invention, the video related to the selected video signal is displayed larger than the video related to the unselected video signal. This is because the selected video is the video that the viewer is viewing, and therefore it is preferable to display the selected video larger than the unselected video.

  The video display device according to the present invention further includes a separating unit that separates the video information from the video signal when video information for identifying the video signal is superimposed on the video signal, The video according to the video information separated by the separating means is further synthesized.

  In the present invention, when video information for identifying a video signal is superimposed on the video signal, the superimposed video information is separated from the video signal. Then, the video related to the separated video information is further combined with each video. Thereby, the viewer can easily grasp what kind of video each displayed video is.

  The video display system according to the present invention selects one of a plurality of devices storing device information for identifying the device itself and a plurality of video signals transmitted from the device, and the selected video signal In the video display system including the video according to the above and the video display device that displays the video related to the unselected video signal side by side, an acquisition unit that acquires the device information from the plurality of devices, and the device information acquired by the acquisition unit And a synthesizing unit for synthesizing the video related to the video related to the selected and unselected video signals.

  In the present invention, when a plurality of devices store device information for identifying the devices themselves, one of the plurality of video signals transmitted from each device is selected, and the selected video signal is selected. The video and the video related to the unselected video signal are displayed side by side. At that time, device information is acquired from each device, and a video related to the acquired device information is combined with a video related to the selected and unselected video signals. Thus, the viewer can easily grasp the transmission source of each displayed video.

  According to the present invention, when one of a plurality of input video signals is selected and a video related to the selected video signal and a video related to an unselected video signal are displayed side by side, Since the transmission source information for identifying the transmission source is acquired, and the video related to the acquired transmission source information is combined with the video related to the selected and unselected video signals, each displayed video is It is possible to make the viewer grasp whether the video is the transmission source. The transmission source information includes, for example, the name of the device that is the transmission source, the device manufacturer (manufacturer name), the device type name, and the like, and the viewer displays the video that displays the device name, manufacturer name, type name, and the like. The device name, manufacturer name, and type can be easily grasped.

  According to the present invention, when the transmission source information includes state information indicating the power supply on / off state of the transmission source, when the state information indicating that the power supply is disconnected is acquired, Since the video indicating that is disconnected is further combined, it is possible for the viewer to grasp that the corresponding transmission source is not operating.

  According to the present invention, since the size of each video is controlled according to the acquired state information, for example, when the transmission source is turned off, the video transmitted to the video display device Therefore, it is considered sufficient to let the viewer know that the source is connected, so the video size should be smaller than the size of the source video in operation. Thus, it is possible to enlarge the video of the transmission source in operation. Therefore, it is possible to make it easier for the viewer to check the video of the transmission source in operation.

  According to the present invention, since the video related to the selected video signal is displayed larger than the video related to the unselected video signal, even if the viewer is watching the selected video, Can be avoided as much as possible. This is because the selected video is the video that the viewer is viewing, and therefore it is preferable to display the selected video larger than the unselected video.

  According to the present invention, when video information for identifying the video signal is superimposed on the video signal, the video information is separated from the video signal, and the video related to the separated video information is further combined. Thus, it is possible to make the viewer grasp what kind of video each displayed video is. The video information is, for example, the name of the video and the format name of the video, and the viewer can easily grasp the content and format of the video by watching the video displaying the video name and the video format name. Can do.

  According to the present invention, a plurality of devices storing device information for identifying the device itself and one of a plurality of video signals transmitted from the device are selected, and a video related to the selected video signal When the video related to the unselected video signal is displayed side by side, the device information is acquired from each device, and the video related to the acquired device information is combined with the video related to the selected and unselected video signal. Therefore, there are excellent effects such as making it possible for the viewer to know which device is the displayed video.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.

FIG. 1 is a block diagram showing a configuration of a video display apparatus according to the present invention.
The video display device 1 according to the present invention includes a control unit 10, an IEEE 1394 interface 11, an operation signal receiving unit 12, an MPEG (Motion Picture Experts Group) decoder 13, a video processing unit 14, a first memory 15, a second memory 16, and a display. A controller 17 and a display unit 18 are provided. The control unit 10 directly or indirectly controls each unit described above, and performs various functions according to a control program stored in a built-in ROM.

  The IEEE 1394 interface 11 is a connection interface for serially connecting external devices 5a, 5b, 5c,... Conforming to the IEEE 1394 communication standard. Received as a video signal made. In IEEE 1394, 63 nodes can be multiplexed. Further, the external devices 5a, 5b, 5c,... Store device information for identifying the devices themselves, and the video display device 1 is turned on by the IEEE 1394 interface 11 with the external devices 5a, 5b, 5c,. Device information such as a disconnected state (hereinafter referred to as a power state), a device name, a manufacturer name, and a device type name can be acquired as appropriate, and the acquired device information is taken into the first memory 15.

  The operation signal receiving unit 12 is for receiving an operation signal transmitted from the remote controller 3, and the operation of the video display device 1 is operated by this operation signal. The remote controller 3 corresponding to the video display device 1 of the present invention includes a video list key 3a for instructing a video list mode in which videos of external devices 5a, 5b, 5c,. In this example, it is assumed that the video display device 1 is remotely operated using a remote controller 3 that is separate from the video display device 1, but an operation unit (not shown) is provided on the main body of the video display device 1, It is also possible to operate the video display device 1 on the main body side.

  The MPEG decoder 13 selects a packet of the MPEG format video signal received by the IEEE 1394 interface 11 for each node, and demodulates it for each external device 5a, 5b, 5c,. Video information such as a video name identifying the video signal and a video format name is superimposed on the video signal, and the MPEG decoder 13 includes a video information separation unit 13a that separates the video information from the video signal. Yes.

  The video processing unit 14 includes a capture processing unit 14a, a composition processing unit 14b, and an OSD (On Screen Display) processing unit 14c. The capture processing unit 14 a captures the video data demodulated by the MPEG decoder 13 into the first memory 15. The synthesizing unit 14b performs synthesizing processing of a plurality of demodulated video data. In the present invention, each video data is set so as to be a list video in which videos of the external devices 5a, 5b, 5c,. (The details will be described later). The OSD processing unit 14c performs OSD processing for synthesizing translucent OSD video data indicating device information and video information with each video data synthesized by the synthesis processing unit 14b (details will be described later). The second memory 16 is used to store temporary data for processing by the synthesis processing unit 14b and the OSD processing unit 14c.

  The display controller 17 generates a synchronization signal and a clock signal for driving the display unit 18 such as a liquid crystal panel, and causes the display unit 18 to display the video processed by the video processing unit 14.

FIG. 2 is a diagram showing device information, video information, and video data addresses taken into the first memory.
The video display device 1 includes the device information 50a, 50b, 50c,... Of the external devices 5a, 5b, 5c,... Acquired as described above, and video information (provided that a video signal is transmitted from the external device). ) 60a, 60b, 60c,. The device information 50a, 50b, 50c,... Includes the device name 51, the device power status 52, the manufacturer name 53, and the device type 54. The video information 60a, 60b, 60c,. The name 62 is included, and is taken into the address of the first memory 15 as shown in FIG. Further, the video data 70a, 70b, 70c,... Of the external devices 5a, 5b, 5c,... Are stored in a predetermined amount from the next address of the video information 60a, 5b, 5c,. Into.

  The composition processing unit 14b performs composition processing of various images. In the present invention, when the image list key 3a is pressed, the images of the external devices 5a, 5b, 5c,... As shown in FIG. Each of the images 71, 72, 73,..., 76 is synthesized so that a list image in which 71, 72, 73,.

  As shown in FIG. 4, the OSD processing unit 14c includes a semi-transparent OSD video 81 indicating device information and video information on each video 71, 72, 73,... 76 synthesized by the synthesis processing unit 14b. , 82, 83,..., 86 are subjected to OSD processing. In the OSD process, a selection frame 88 indicating area selection is displayed in an area of an arbitrary video (here, video 75).

  Incidentally, as shown in FIGS. 3 and 4, the size of the currently selected image 71 is made larger than the size of the unselected images 72, 73,. This is because the selected video 71 is a video that is viewed by the viewer, and is therefore preferably displayed larger than the unselected videos 72, 73,.

  Further, since an external device whose power is off does not transmit a video signal to the video display device 1, it is considered sufficient to be able to notify the viewer that the external device is connected. Therefore, for example, when the external devices 5b and 5c are turned off, as shown in FIGS. 3 and 4, the dimensions of the images 73 and 74 of the external devices 5b and 5c in the off state are set as follows. It is made smaller than the dimensions of the images 72, 75, 76 of the external device in the on state. Thus, by relatively enlarging the video of the external device with the power on, the viewer can easily confirm the video 72, 75, 76 of the external device with the power on.

  5, 6 and 7 are flowcharts showing the processing procedure performed by the video display apparatus according to the present invention. The processing procedure is an example, and the present invention is not limited to this. Further, such a processing procedure can be performed by incorporating a control program in the ROM built in the control unit 10 in advance.

  First, the video display device 1 determines whether or not the video list mode is instructed based on whether or not the video list key 3a is pressed (step S1). When the video list key 3a is not pressed and the video list mode is not instructed (S1: NO), the video display device 1 returns the process to S1 and monitors the pressing of the video list key 3a. When 3a is pressed and the video list mode is instructed (S1: YES), the variable n is set to 0 (step S2), and it is determined whether an external device (IEEE1394 compatible device) is connected (step S2). S3).

  When it is determined that the external device is not connected (S3: NO), the video display device 1 displays that the external device is not connected (step S4). On the other hand, when it is determined that the external device is connected (S3: YES), the video display device 1 increments the variable n by 1 (step S5), and whether or not the power of the external device is on. Is determined (step S6). The on / off state of the power here refers to the on / off state of the main power source. When the external device is on standby even when the main power source is off, the external device conforms to the IEEE 1394 standard. Then, the control part 10 can grasp | ascertain the ON / OFF state of the power supply of an external apparatus.

  When it is determined that the power supply of the external device is on (S6: YES), the video display device 1 acquires device information of the external device (step S7). The video display device 1 receives the video signal transmitted from the external device by the IEEE 1394 interface 11, demodulates it by the MPEG decoder 13 (step S8), and takes it into the first memory 15 (step S9).

  On the other hand, when it is determined that the power supply of the external device is not in an on state, that is, in an off state (S6: NO), the video display device 1 acquires device information of the external device in the same manner as S7 (step S6). S10). If it is determined that the power supply of the external device is off, the video signal is not transmitted, so that the video signal is not demodulated and loaded into the first memory 15.

  Then, the video display apparatus 1 determines whether or not there is an unchecked external device (step S11). If it is determined that there is an unchecked external device (S11: YES), the process proceeds to S5. And repeat the process until all external devices have been checked. On the other hand, when it is determined that there is no unchecked external device (S11: NO), since the variable n is the number of external devices connected to the video display device 1 (IEEE1394 interface 11), video display is performed. As shown in FIG. 8, the apparatus 1 divides the display surface of the display unit 18 into n (here, n = 6) areas 91, 92, 93,..., 96 (step S12). In this example, the area 91 is an area as a parent screen, and an image selected by the viewer is displayed in this area 91. On the other hand, areas 92, 93,..., 96 are areas as sub-screens, and non-selected images are displayed in these areas 92, 93,.

  Next, the video display device 1 combines and displays the device information of the external device acquired in S7 and S10 in the corresponding regions of the divided n regions 91, 92, 93,. (Step S13). Then, the video display device 1 determines again whether or not the power supply of the external device is on (step S14), and when it is determined that the power supply of the external device is on (S14: YES). The video captured in the first memory 15 in S9 is displayed in the corresponding area in halftone (step S15). On the other hand, when it is determined that the power supply of the external device is off (S14: NO), no halftone display is performed because there is no captured video.

  Then, a selection frame 88 (cursor) indicating region selection is displayed in the arbitrary region divided in S12 (step S16), and it is determined whether or not the region has been selected by the viewer using the selection frame 88 (step S16). S17). If it is determined that the area has not been selected (S17: NO), the process returns to S17 to monitor the viewer's area selection. On the other hand, when it is determined that the area has been selected (S17: YES), it is determined whether or not the power supply of the external device corresponding to the selected area is on (step S18), and the power supply of the external device is determined. Is determined to be in the off state (S18: NO), the display unit 18 indicates that the power supply of the selected external device is off, such as “the power supply of the selected external device has been cut off”. Is displayed (step S19). Then, a display for confirming to the viewer whether or not to turn on the power of the external device is displayed, and whether or not to turn on the power of the external device is received from the viewer (step S20). When the selection not to turn on the external device is accepted (S20: NO), the process proceeds to S17 and the selection of the area by the selection frame 88 is accepted again from the viewer.

  On the other hand, when the selection to turn on the power of the external device is received (S20: YES), the power of the external device is turned on by transmitting a control signal to the corresponding external device to turn on the power of the external device. Turn on (step S21). Thereby, since the power supply of the external device is turned on, the video displayed on the parent screen before the selection at S17 is replaced with the video of the sub-screen selected by the selection at S17 (step S22).

  If it is determined that the power supply of the external device is on (S18: YES), the process proceeds to S22 without performing the processes of S19 to S21, and the video of the parent screen and the video of the child screen are switched.

  As described above, the video display device 1 according to the present invention synthesizes the video indicating the acquired device information with the video related to the selected and non-selected video signals, thereby allowing the viewer to display each video displayed. It is possible to easily grasp which of the external devices 5a, 5b, 5c,... In addition, by separating the video information superimposed on the video signal and synthesizing the video indicating the separated video information with each video, the viewer can determine what video is displayed. You can see if there is.

  In addition, since the video is displayed as the parent screen by selecting one of the sub-screens after confirming the video of each external device, the operability when switching the video is improved.

  In the embodiment, the display surface of the display unit 18 is divided into an area 91 as a main screen and 92, 93,... As sub-screens. May be.

  In the embodiment, the device information 50a, 50b, 50c,..., The video information 60a, 60b, 60c,... And the video data 70a, 70b, 70c,. 9, only the device information 50a, 50b, 50c,... And the video information 60a, 60b, 60c,... Characteristic of the present invention are taken into the first memory 15, and the video data 70a, 70b, 70c,. Alternatively, it may be taken into a video data memory (frame buffer) as in the prior art.

It is a block diagram which shows the structure of the video display apparatus which concerns on this invention. It is a figure which shows the address of the apparatus information, video information, and video data taken in to the 1st memory. It is a figure for demonstrating the outline | summary of a synthetic | combination process. It is a figure for demonstrating the outline | summary of an OSD process. It is a flowchart which shows the process sequence which the video display apparatus concerning this invention performs. It is a flowchart which shows the process sequence which the video display apparatus concerning this invention performs. It is a flowchart which shows the process sequence which the video display apparatus concerning this invention performs. It is a figure for demonstrating the division | segmentation process of a display surface. It is a figure which shows the address of the apparatus information and video information which are taken in into 1st memory.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Video display apparatus 3 Remote control 3a Video list key 5a, 5b, 5c, ... External apparatus 10 Control part 11 IEEE1394 interface 13 MPEG decoder 13a Video information separation part 14 Video processing part 14a Acquisition processing part 14b Composition processing part 14c OSD processing part 15 First memory 16 Second memory 17 Display controller 18 Display unit

Claims (6)

In a video display device comprising: selection means for selecting one of a plurality of input video signals; and display means for displaying a video related to a selected video signal and a video related to an unselected video signal side by side.
Obtaining means for obtaining transmission source information for identifying transmission sources of the plurality of video signals;
A video display apparatus comprising: a synthesis unit configured to synthesize the video related to the transmission source information acquired by the acquisition unit with the video related to the selected and unselected video signals. When the transmission source information includes state information indicating the on / off state of the power source of the transmission source that transmits the video signal,
The synthesis means includes
2. The video display according to claim 1, wherein when the status information indicating that the power is turned off is obtained, a video indicating that the power is turned off is further combined with the corresponding video. apparatus. The display means includes
The video display device according to claim 2, wherein the size of each video is controlled in accordance with the acquired state information. The display means includes
The video display apparatus according to any one of claims 1 to 3, wherein a video related to the selected video signal is displayed larger than a video related to the unselected video signal. A separation means for separating the video information from the video signal when video information for identifying the video signal is superimposed on the video signal;
The synthesis means includes
The video display device according to any one of claims 1 to 4, wherein the video related to the video information separated by the separation unit is further synthesized. A plurality of devices storing device information for identifying the device itself, and one of a plurality of video signals transmitted from the device are selected, and a video related to the selected video signal and an unselected video signal In a video display system including a video display device that displays video according to
Obtaining means for obtaining device information from the plurality of devices;
A video display system comprising: a combining unit configured to combine the video related to the device information acquired by the acquisition unit with the video related to the selected and unselected video signals.

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