JP5248552B2 - Video signal processing apparatus and control method thereof - Google Patents

Description

  The present invention relates to a video signal processing apparatus and a control method therefor, and devise a demonstration function when, for example, a digital television broadcast receiving apparatus or a recording / reproducing apparatus is arranged at a store.

  When a digital television broadcast receiver is placed and sold at a store, it may be switched to a mode for displaying a demonstration video (hereinafter referred to as a demo mode). Examples of devices that can be switched to the demo mode include Patent Document 1 and Patent Document 2.

  Patent Literature 1 can display a mode selection screen in which a plurality of demonstration modes can be selected. The item data of the notes can be displayed when a certain time elapses without any mode selection input.

  Japanese Patent Application Laid-Open No. 2004-26853 can cause a user to perform a demonstration regarding a function that the user is interested in using. For dealers, demonstrations can be executed according to circumstances and requests.

Japanese Patent No. 3850643 JP 2007-81600 A

  At the store, when the user confirms the performance of one of the interested devices performing the demonstration, the user compares the screen of the interested device with the screen of the device of another company arranged next to the screen. ing. However, since both are not always operating with the same setting function, the comparison may not be satisfactory.

  Therefore, in this embodiment, at least the demonstration image output and the on-air image output can be automatically repeated. During the demonstration, the image file from the external connection or the internal memory is automatically reproduced, and the user can control the performance of one device. It is an object of the present invention to provide a video signal processing apparatus and a control method therefor, which are capable of comparatively examining a plurality of images by themselves.

  In addition, in the embodiment, in addition to the above, a plurality of image files for demonstration images are prepared so that a plurality of demonstration image files can be reproduced in sequence, and a single device can compare and examine various image contents during the demonstration. It can also be made possible.

  Furthermore, in this embodiment, it is possible to make it easier for the user to understand what function the demonstration contents are appealing.

  Furthermore, it is possible to obtain a demonstration that makes it easy to compare the screens when the function is turned on and off on the same screen.

  It is also possible to recognize a function that can be demonstrated from the management information of the externally connected memory and automatically perform a demonstration according to the above settings.

In order to solve the above problems, the present invention includes a memory storing the image data for the demonstration to explain the functions, and an image reading section for reading the image data from the memory, read the image data Output for display and execute demonstration mode.When this demonstration mode ends, the display mode is switched to output on-air image data for display. A display control unit that repeats the demonstration mode and the display mode of the on-air image data, and the display control unit further obtains an output describing a plurality of image quality adjustment functions in the demonstration mode; wherein the plurality of the image quality adjustment function Comprising means for outputting the screen state when by adjustment has been made.

It is a block block diagram of the digital television broadcast receiver which concerns on one Example of this invention. It is explanatory drawing which shows the external appearance of the remote controller of FIG. It is a figure explaining operation | movement of the characteristic part of the digital television broadcast receiver of FIG. It is a figure explaining other operation | movement of the characteristic part of the digital television broadcast receiver of FIG. It is a figure explaining other operation | movement of the characteristic part of the digital television broadcast receiver of FIG. It is a figure explaining the further another operation | movement of the characteristic part of the digital television broadcast receiver of FIG. It is a figure explaining other operation | movement of the characteristic part of the digital television broadcast receiver of FIG. It is a figure explaining other operation | movement of the characteristic part of the digital television broadcast receiver of FIG. It is explanatory drawing which shows an example when image comparison is performed in demonstration mode. It is explanatory drawing which shows an example of the data stored in the memory used for a shop front demonstration.

  Hereinafter, embodiments will be described with reference to the drawings. First, an outline of the broadcast receiving apparatus will be described.

  FIG. 1 shows a main signal processing system of the digital television broadcast receiver 41. That is, the satellite digital television broadcast signal received by the BS / CS digital broadcast receiving antenna 43 is supplied to the satellite digital broadcast tuner 45 via the input terminal 44, so that the broadcast signal of the desired channel is obtained. To be selected.

  The broadcast signal selected by the tuner 45 is supplied to a PSK (Phase Shift Keying) demodulator 46, demodulated into a digital video signal and audio signal, and then output to a signal processing unit 47.

  The terrestrial digital television broadcast signal received by the terrestrial digital broadcast receiving antenna 48 is supplied to the terrestrial digital broadcast tuner 50 via the input terminal 49, so that the broadcast signal of the desired channel is selected. Is done.

  The broadcast signal selected by the tuner 50 is supplied to an OFDM (Orthogonal Frequency Division Multiplexing) demodulator 51, demodulated into a digital video signal and an audio signal, and then output to the signal processing unit 47.

  An analog tuner 58 for receiving terrestrial analog signals is also provided. The signal received by the analog tuner 58 is demodulated by the analog demodulator 59 and output to the signal processing unit 47.

  Here, the signal processing unit 47 receives the digital video signal and audio signal supplied from the PSK demodulator 46, the digital video signal and audio signal supplied from the OFDM demodulator 51, and the analog demodulator 59. The video signal and the audio signal, and the video signal and the audio signal from the line input terminal are selectively subjected to predetermined digital signal processing and output to the graphic processing unit 52 and the audio processing unit 53.

  Among these, the graphic processor 52 has a function of superimposing and outputting the OSD signal generated by the OSD (On Screen Display) signal generator 54 on the digital video signal supplied from the signal processor 47. The graphic processing unit 52 selectively outputs the output video signal of the signal processing unit 47 and the output OSD signal of the OSD signal generation unit 54, multiplexes both outputs, or halves the screen. It can be combined and output as configured.

  The digital video signal output from the graphic processing unit 52 is supplied to the video processing unit 55. The video processing unit 55 converts the input digital video signal into an analog video signal in a format that can be displayed on the video display unit 57, and outputs the analog video signal to the video display unit 57 for video display.

  The audio processing unit 53 converts the input digital audio signal into an analog audio signal in a format that can be reproduced by the speaker 56, and outputs the analog audio signal to the speaker 56 for audio reproduction.

  Here, in the digital television broadcast receiving apparatus 11, all operations including the above-described various reception operations are comprehensively controlled by the control unit 61.

  The control unit 61 includes a CPU (Central Processing Unit) and the like. When receiving the operation information from the operation unit 71 or when receiving the operation information sent from the remote controller 72 from the light receiving unit 73, the control unit 61 sets each unit so that the operation content is reflected in the apparatus. It is in control.

  In this case, the control unit 61 mainly includes a ROM (Read Only Memory) 611 that stores a control program executed by the CPU, a RAM (Random Access Memory) 612 that provides a work area for the CPU, and various setting information. And a non-volatile memory 613 in which control information and the like are stored.

  The controller 61 is connected via a card I / F (Interface) 75 to a card holder 76 in which the first memory card 77 can be mounted. Thus, the control unit 61 can transmit / receive information to / from the first memory card 77 mounted on the card holder 76 via the card I / F 75.

  Although not shown, the control unit 61 may be connected to a card holder in which the second memory card can be attached via another card I / F.

  The controller 61 is connected to the brightness sensor 78. Thereby, ambient brightness information can be acquired, and for example, the brightness of the screen can be automatically controlled.

  The control unit 61 is connected to the first LAN terminal 82 via the communication I / F 81. As a result, the control unit 61 can transmit / receive information to / from the LAN-compatible HDD (hard disk drive device) connected to the first LAN terminal 82 via the communication I / F 81. In this case, the control unit 61 has a DHCP (Dynamic Host Configuration Protocol) server function, and performs control by assigning an IP (Internet Protocol) address to a LAN-compatible HDD connected to the first LAN terminal 82. Although not shown, the control unit 61 may be connected to the second LAN terminal via another communication I / F.

  The control unit 61 is connected to the USB terminal 84 via the USB I / F 83. Accordingly, the control unit 61 can transmit / receive information to / from each device connected to the USB terminal 84 via the USB I / F 83.

  The control unit 61 is connected to the i. I. Via Link (registered trademark) I / F85 It is connected to a Link (registered trademark) terminal 86. Thereby, the control part 61 is i. Each device connected to the Link (registered trademark) terminal 86; i. Information can be transmitted and received via the Link (registered trademark) I / F 85.

  The control unit 61 can transmit / receive information to / from each device connected to the HDMI terminal 88 via an HDMI I / F 87 that conforms to the HDMI (High Definition Multimedia Interface) standard.

  Incidentally, the memory card 77 described above includes, for example, a store demonstration card. An over-the-counter demonstration card can be attached to the in-store demonstration device. Accordingly, the control unit 61 includes a setting unit 621, a demonstration execution unit 622, a reading unit 623, and a display control unit 624.

  The setting unit 621 outputs a setting signal for setting the execution contents of the demonstration according to the operation. The demonstration execution unit 622 executes a demonstration operation sequence according to the setting signal. The reading unit 623 reads the demonstration image data from the memory along with the execution of the demonstration. The display control unit 624 outputs the read image of the demonstration image data to the display unit, outputs the image of the on-air image data to the display unit when the demonstration mode ends, and shifts to the demonstration mode when no operation is performed for a certain time.

  Also included in the control unit 61 are a management information determination unit 625 and an operation input processing unit 626. The management information determination unit 625 analyzes the management information related to the demonstration read from the memory, and determines whether there is a demonstration file that conforms to its own standard. The operation input processing unit 626 is a processing unit for determining an operation input from the remote controller 72 and setting a function of the apparatus. Information for demonstration (demonstration image data, demonstration management information, etc.) may be stored in a built-in memory inside the apparatus.

  FIG. 2 shows the external appearance of the remote controller 72. The remote controller 72 mainly includes a power key 17a, an input switching key 17b, a direct channel selection key 17c for a satellite digital broadcast channel, a direct channel selection key 17d for a terrestrial broadcast channel, a quick key 17e, a cursor key 17f, and an enter key. 17 g, program guide key 17 h, page switching key 17 i, face net (navigation) key 17 j, back key 17 k, end key 17 l, blue, red, green color keys 17 mb, 17 mr, 17 mg, channel up / down key 17 n, volume adjustment A key 17o and the like are provided.

  When the program guide key 17h is pressed, the program guide is displayed. When the end key 171 is pressed, the state returns to the on-air state (display of the image of the channel currently being received).

  FIG. 3 is a diagram for explaining the characteristic operation of the digital television broadcast receiver described above. According to this apparatus, when a store demonstration card is used as the memory card 77, the apparatus is turned on and, for example, the demo key 17p of the remote controller 72 is pressed, the demonstration operation can be started. In the demonstration operation, for example, image data of a preset image file is reproduced. Also, instructions may be executed regarding the functions of the apparatus. Various examples are possible for the demonstration contents.

  In the apparatus of the present invention, when the demo key 17p of the remote controller 72 is pressed, for example, the setting unit 621 outputs a setting signal for executing the demonstration. Then, the reading unit 623 reads demonstration image data from the memory in response to the setting signal. Then, the image of the demonstration image data read by the display control unit 624 is output to the display unit.

  Here, the display control unit 624 executes a demonstration mode for outputting the read demonstration image data to the display unit 57. When this demonstration mode ends, the display control unit 624 shifts to a display mode for outputting the on-air image data to the display unit 57. When no operation is performed for a certain time in the state, the mode is shifted to the demonstration mode. This basic operation is shown in FIG.

  When such an operation is performed, an image file from an external connection or an internal memory can be automatically reproduced and an on-air image can be viewed during a demonstration. Therefore, the user can compare and examine a plurality of images with one device itself, and can confirm the image contents explained in the demonstration on the on-air screen.

  In the on-air operation state, it is described that the operation shifts to the demonstration operation when no operation is performed for a certain period of time, but this certain period of time can be arbitrarily changed. For this change, for example, an item “transition time XX minutes from on-air to demonstration” may be provided on the menu screen so that the time can be set by this item.

  When selecting the type of demonstration, for example, a demonstration function item is selected from the demonstration menu. For example, the function items include a video enhancement function, a moving picture improvement function, a high sound quality function, an automatic video adjustment function, a media player, and a CM.

  The present invention is not limited to the above embodiment. As shown in FIG. 4 (A), a plurality of image files for demonstration images may be prepared, and in the demonstration operation, it may be configured such that a reproduction image of a demonstration to be appealed can be selected. FIG. 4B shows a selection screen on the display unit 57 when an image to be used for demonstration is selected from a plurality of demonstration image files stored in the memory card 77. For example, when the item “Demo image setting” is selected from the menu screen and the enter button is pressed, a screen as shown in FIG. 4B appears. On the upper side, representative images of a plurality of image files for demonstration images are arranged in a thumbnail. Here, the user selects a thumbnail image of a desired file to be used for demonstration with the cursor, and presses the enter button. Then, as shown on the lower side of the screen, the file names A, C, D,. In this case, one file may be selected.

  After this setting, if the return button is operated and the demo key 17p is pressed, the operation proceeds to the demonstration operation.

  The demonstration operation example in FIG. 5 is an example in which the video enhancement function demonstration is selected. This demonstration is a demonstration of the video enhancement function. When the demonstration operation is started, there are about 5 seconds of instructions regarding the video enhancement function, and a demonstration image (which may be a moving image or a still image) is actually demonstrated for 24 seconds. In this demonstration, for example, the on / off switching of the video enhancement function is switched every 2 seconds, and one type of video output is performed for about 8 seconds. As a result, the user can compare and examine the effect of the video enhancement function.

  The demonstration operation example in FIG. 6 is an example in which the moving image improvement function demonstration is selected. This demonstration is about the video improvement function. When the demonstration operation is started, for example, there is an instruction about the moving image improvement function for about 5 seconds, and the actual moving image improvement function is executed (about 16 seconds). At this time, for example, full screen on → full screen off → full screen on... Of the moving image improvement function is repeated every 2 seconds. As a result, the user can recognize the effect of the active vision M200.

  The demonstration operation shown in FIG. 7 is a case where setting is made so that a plurality of image files can be sequentially reproduced. In this example, the demonstration image files C, D, E, and F are selected and set so as to be sequentially reproduced. The demonstration image file C is a file in which an instruction of a high sound quality function as a device function is executed with a moving image for about 45 seconds. The demonstration image file D is a file in which an instruction of an automatic video adjustment function as an apparatus function is executed for about 30 seconds, for example, together with various still images. The demonstration image file E is a file in which a media player instruction as a device function is executed for about 30 seconds, for example, together with a moving image. The demonstration image file F is a commercial video and is a file that is executed with a video for about 30 seconds.

  FIG. 8 shows a state in which a large number of moving image files are sequentially reproduced in the demonstration operation. When the last image file is played, the operation basically shifts to an on-air operation. Then, in the on-air operation, when there is no operation for 2 minutes, the operation proceeds to the demonstration operation.

  FIG. 9 shows that when the actual moving image improvement or high image quality improvement function is executed (about 16 seconds), for example, the full screen on → full screen off → full screen on... It shows a state of being repeated every time (not necessarily 2 seconds). As a result, the user can visually recognize the change in the brightness of the screen and recognize the effect of the active vision M100.

  The present invention is not limited to the above embodiment. For example, a store demonstration memory may store a management information table as shown in FIG.

  That is, the management information table includes a plurality of demonstration type names, a plurality of model names, and executable information identifying whether each model can execute each demonstration. With reference to the management information table, the setting unit 612 determines a setting signal for executing the demonstration.

  As the types of demonstration, there are a demonstration regarding resolution, a demonstration regarding active vision M200 (also referred to as clear scan 240), and a demonstration regarding active vision M100 (also referred to as clear frame) described above. There are also demonstrations of Dolby Volume, Autoview, Media Player, and CM. A file name is set for each demonstration data storage file.

  Next, a flag indicating which demonstration the various digital television broadcast receiving apparatuses can handle is described. Various digital television broadcast receiving apparatuses are classified by model name, and model A, model B, model C, model D, and model E are given as examples.

Model A and model B indicate that none of the demonstration functions are provided. Model E shows that it has any demonstration function. These are demonstration functions related to high-definition video functions, video improvement functions, high-quality sound functions, automatic video adjustment functions, media players, and commercials. Model D indicates that it does not have a demonstration function related to the video improvement function. Model C indicates that it does not have a demonstration function for moving picture improvement, high sound quality, and automatic video adjustment.

  When the management information is stored in the demonstration memory as described above, unified data can be created and stored in the memory data. In other words, there is no need to create memory data for each model.

  On the other hand, as a digital television broadcast receiving apparatus, the management information is read and analyzed, the file name of a compatible demonstration file is recognized, and the file is read out on the RAM by designating the file, and the demonstration is performed. Can be executed.

  As described above, this embodiment is applied to a video signal processing apparatus and a digital television broadcast receiving apparatus. The embodiment is also useful when applied to a recording / reproducing apparatus, a set top box, or the like.

  45 ... tuner for satellite digital broadcasting, 46 ... PSK demodulator, 47 ... signal processing unit, 48 ... antenna for receiving terrestrial digital broadcasting, 51 ... OFDM demodulator, 52. Graphic processing unit, 53 ... audio processing unit, 54 ... OSD signal generation unit, 55 ... video processing unit, 56 ... speaker, 57 ... video display unit, 61 ... control unit 621... Setting unit 622 Demonstration execution unit 623 Reading unit 624 Display control unit 625 Management information determination unit 626 Operation input processing unit 72 ... Remote controller.

Claims (5)

A memory for storing image data for demonstration to illustrate the function,
An image reading unit for reading the image data from the memory;
The read-out image data is output for display and a demonstration mode is executed. When this demonstration mode is completed, the display mode is shifted to a display mode for outputting on-air image data for display. Transition to the demonstration mode , having a display control unit that repeats the demonstration mode and the display mode of the on-air image data ,
The display control unit further obtains an output describing a plurality of image quality adjustment functions when in the demonstration mode;
A video signal processing apparatus comprising: means for outputting each screen state when adjustment is performed by the plurality of image quality adjustment functions.   The video signal processing apparatus according to claim 1, wherein the memory includes a plurality of image files for use in the demonstration mode. Wherein the memory, the type name of a plurality of demonstration, management information table including a plurality of model name, and an execution availability information each model has identified whether it can execute each demonstration is stored, the management information table The video signal processing apparatus according to claim 1 , further comprising means for analyzing the information and executing an executable demonstration . Furthermore, a receiving unit for receiving a television broadcast signal;
A demodulation and signal processing unit that demodulates and processes the received signal from the receiving unit and converts the received signal into video data;
A video display unit to which video data from the demodulation and signal processing unit and demonstration image data from the image reading unit are supplied;
The video signal processing apparatus according to claim 1, further comprising a holder to which the memory can be attached and detached. The demonstration image data for demonstration to explain the functions from a memory which stores read the image data, a control method of a video signal processing apparatus for executing a demonstration,
Reading the image data from the memory;
The read-out image data is output for display and a demonstration mode is executed. When this demonstration mode is completed, the display mode is shifted to a display mode for outputting on-air image data for display. Transition to the demonstration mode, repeat the demonstration mode and the display mode of the on-air image data,
Furthermore, in the demonstration mode, an output describing a plurality of image quality adjustment functions is obtained.
A method of controlling a video signal processing apparatus, characterized in that each screen state can be obtained when adjustment by the plurality of image quality adjustment functions is performed.

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