JP4693697B2 - Video display device - Google Patents

Description

  The present invention detects that an identification card is inserted by a digital broadcast receiving means for receiving a digital broadcast, an identification card detecting means for detecting that an identification card is inserted, and the identification card detecting means. In this case, the present invention relates to a video display device comprising: video display means for decoding the digital broadcast received by the digital broadcast receiving means and displaying the decoded video.

2. Description of the Related Art Conventionally, video display apparatuses that receive digital broadcasts and display video content of the received digital broadcasts are known. In the case of a video display device that receives and displays a digital broadcast, it is common to use an identification card for identifying a terminal (user) in order to protect copyright and charge for a pay program. is there. For example, a B-CAS (registered trademark) card is known as an example of an identification card. A user can view a copyright-protected content or the like by inserting a B-CAS card into the video display device (see, for example, Patent Document 1).
JP 2001-177807 A

  In general, when a video display device is manufactured and shipped, it is inspected in a factory or the like to determine whether or not it normally operates as a product. Therefore, the normal video display apparatus is provided with an inspection mode, and the inspection mode can be executed by performing a special operation.

  In the inspection mode, for example, it is possible to inspect whether the video is displayed correctly, whether the sound is output correctly, whether there is no color unevenness on the screen, etc. Can do.

  Here, in the inspection mode, even when inspecting whether or not digital broadcasting can be correctly received, a B-CAS card is required. Therefore, in the inspection process, it is necessary to insert the B-CAS card.

  Therefore, it is necessary for the worker who performs the inspection to insert the B-CAS card before executing the inspection mode and to remove the B-CAS card after the end of the inspection mode. However, these operations need to be confirmed manually by an operator, and there is a risk that the user forgets to remove the B-CAS card after the inspection mode is completed.

  Here, even if the user forgets to remove the B-CAS card, since the state in which the B-CAS card is inserted is not “abnormal”, it is determined as a normal product in the inspection mode. There was a problem that the product was shipped with the inserted.

  In view of the above-described problems, an object of the present invention is to provide a video display device that prevents forgetting to remove a B-CAS card during a television inspection process.

  In order to solve the above-described problem, a video display device according to a first aspect of the present invention includes a digital broadcast receiving unit that receives a digital broadcast, an identification card detection unit that detects that an identification card is inserted, and the identification card. A video display means for decoding the digital broadcast received by the digital broadcast receiving means and displaying the decoded video when the detection means detects that the identification card is inserted; The display device further comprises inspection mode execution means for executing an inspection mode for inspecting whether or not the video display apparatus operates normally, and the identification card detection is performed when the inspection mode by the inspection mode execution means is ended. When it is detected by the means that the identification card is inserted, an identification card notification means for notifying that effect is provided. It is characterized in.

  According to a second aspect, in the video display device according to the first aspect, the identification card is a B-CAS card.

  According to the present invention, when the inspection mode is executed and the inspection mode ends, if an identification card is inserted, the fact is notified. Therefore, even if the user forgets to remove the identification card when the inspection mode is finished, the worker can easily notice by the notification, and can be prevented from shipping with the B-CAS card inserted. It becomes possible.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a diagram for explaining the configuration of a digital television 1 when the video display device according to the present invention is applied.

[Constitution]
As shown in FIG. 1, the digital television 1 includes a tuner unit 10, a decoder unit 20, a video signal processing unit 30, an audio signal processing unit 35, a control unit 40, an input unit 50, and a B-CAS. A card control I / F 60 and a B-CAS card slot 65 are provided, and an antenna ANT is connected thereto.

  The tuner unit 10 selects (extracts) a reception signal having a frequency corresponding to a channel set in each tuner from the reception signal received from the antenna ANT, and transports a signal (TS) in which each signal is multiplexed (TS). : Transport Stream) signal is extracted. Specifically, the received signal is demodulated by an OFDM (Orthogonal Frequency Division Multiplexing) method, and error correction is performed using Viterbi decoding or the like to extract a TS signal. Then, the extracted TS signal is output to the decoder unit 20.

  The decoder unit 20 separates the TS signal input from the tuner unit 10 into an ES (Elementary Stream) such as video or audio and outputs it. Here, the separated video ES is output to the video signal processing unit 30, and the audio ES is output to the audio signal processing unit 35. The decoder unit 20 also extracts a data broadcast stream included in the TS signal and outputs the data broadcast stream to the control unit 40.

  The video signal processing unit 30 decodes and outputs a video signal from the video ES input from the decoder unit 20. The output video signal is output to a connected display device (not shown), and displayed on, for example, a liquid crystal display device or a CRT.

  The audio signal processing unit 35 is a processing unit that decodes and outputs an audio signal from the audio ES input from the decoder unit 20. The output audio signal is output to a connected audio output device (not shown). For example, it is output to a speaker or an earphone.

  The control unit 40 is a processing device that controls each operation unit of the digital television 1. Each process is executed by reading and executing various programs stored in the digital television 1. Further, the “operation mode” of the digital television 1 can be switched by an instruction from the outside. In the present embodiment, the digital television 1 includes a “normal mode” for normal use by a user and an “inspection mode” for inspecting whether the digital television 1 is operating correctly in a manufacturing factory or the like. Yes.

  When the inspection mode is selected, the control unit 40 executes an inspection program stored in the digital television 1 to inspect whether the digital television 1 is operating correctly. Then, when the operation is correct, the inspection mode is terminated, and when there is an abnormality, the fact is notified. Here, various methods are conceivable as a method for starting the inspection mode. For example, a method of transmitting a special infrared signal for shifting to the inspection mode to the digital television 1 by an infrared remote controller, or a method of directly operating the main body. Any method may be used. In the present embodiment, it will be described that the inspection mode is executed when the digital television 1 receives an infrared signal having a content for executing the inspection mode.

  The input unit 50 is a functional unit for controlling the digital television 1 by outputting a signal input from the outside to the control unit 40. As an example of the input unit 50, for example, any method such as an operation button provided in the main body, a remote control using infrared rays, or a touch panel may be used. In the present embodiment, description will be made assuming that an infrared remote controller is used.

  The B-CAS card control I / F 60 is an interface for connecting the B-CAS card slot 65 and the control unit 40. Further, it is detected whether or not the B-CAS card 100 is inserted into the B-CAS card slot 65.

  The B-CAS card slot 65 is a functional unit into which the B-CAS card 100 is inserted, and information recorded on the inserted B-CAS card is stored in the B-CAS card slot 65 and the B / CAS card control I / O. It will be sent to the control unit 40 via F60.

[Flow of operation processing]
Next, the operation of the digital television 1 will be described with reference to FIG. First, the control unit 40 determines whether or not the digital television 1 is currently in the inspection mode (step S10). Here, when it is determined that the digital television 1 is not in the inspection mode (step S10; No), the normal operation is executed (step 12).

  Next, when it is determined that the inspection mode is entered (step S10; Yes), the process waits until a remote control signal is received at the input unit 50 (step S14). Here, when the remote control signal is received (step S14; Yes), the received remote control signal is decoded (step S16).

  Here, if the decoded remote control signal is not a signal for executing shipment initialization (step S18; No), an operation corresponding to the decoded remote control signal is executed (step S20), and the processing from step S10 is performed. Run repeatedly.

  Subsequently, when the decoded remote control signal is a signal for executing shipment initialization (step S18; Yes), shipment initialization processing is executed (step S22). Here, the shipment initial processing is, for example, by initializing channel information temporarily set in the inspection mode, clearing the screen display, or initializing the memory, thereby performing the digital television 1. Is a process of bringing the product into a shipping state.

  Here, the control unit 40 determines whether or not the B-CAS card 100 is inserted into the B-CAS card slot 65 via the B-CAS card control I / F 60 (step S24). Here, when it is detected that the B-CAS card 100 is inserted into the B-CAS card slot 65 (step S24; Yes), the control unit 40 displays the B-CAS on the display screen from the video signal processing unit 30. An “error display” indicating that a card is inserted is displayed (step S26). Here, while the B-CAS card 100 is being inserted, the “error display” is displayed on the display screen.

  When the B-CAS card 100 is not inserted into the B-CAS card slot 65 (step S24; No), the control unit 40 determines whether or not there is an error other than the B-CAS card 100 in the inspection mode. Is determined (step S28). If there is no other error, “Successful shipment initialization” is displayed on the display screen (step S28; Yes → S30). If there is an error, the error status is displayed on the display screen. It is displayed (step S28; No → S32).

  FIG. 3 shows an example of a diagram when the B-CAS card 100 is inserted. By displaying an error on the display screen of the digital television 1, the inspector can easily grasp that the B-CAS card is inserted.

  Thus, according to the present embodiment, when the inspection mode is terminated and the shipping initial process is executed, if the B-CAS card is inserted, a notification is made. Therefore, the inspector can easily grasp forgetting to remove the B-CAS card.

  In the present embodiment, description has been made of application to a digital television as an example of a video display device. However, it goes without saying that the present invention may be applied to, for example, a hard disk recorder or a computer that can realize an equivalent function.

  Further, although the identification card has been described as a B-CAS card, any card having an equivalent function may be used. For example, it can be applied to a C-CAS card used in a digital cable television. is there.

  In addition, it has been described that notification is displayed on the screen when a B-CAS card is inserted. However, for example, it may be notified by alarm sound, voice, or a combination thereof. is there.

The figure shown about the structure of the digital television. The figure shown about the operation | movement flow of the digital television. The figure which showed an example of the state of an error display.

Explanation of symbols

1 Digital TV 10 Tuner 20 Decoder 30 Video Signal Processor 35 Audio Signal Processor 40 Controller 50 Input Unit 60 B-CAS Card Control I / F
65 B-CAS card slot 100 B-CAS card

Claims (2)

A digital broadcast receiving means for receiving a digital broadcast;
An identification card detecting means for detecting that an identification card is inserted;
A video display means for decoding the digital broadcast received by the digital broadcast receiving means and displaying the decoded video when the identification card detecting means detects that an identification card is inserted;
In a video display device comprising:
An inspection mode execution means for executing an inspection mode for inspecting whether or not the video display device operates normally;
When the inspection mode by the inspection mode execution means is completed, if the identification card detection means detects that the identification card is inserted, the identification card notification means for notifying that effect is provided. A video display device characterized by that.   The video display device according to claim 1, wherein the identification card is a B-CAS card.

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