JP2007049400A - Television broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a television broadcast receiver capable of automatically displaying an initial setting screen at a preferable timing. <P>SOLUTION: The television broadcast receiver 10 is provided with a determination program 17c1 used for causing a CPU 16 to determine whether a time exceeds an upper limit time after interruption of power source of the television broad cast receiver 10, until subsequent turning-on of the power source when the television broadcast receiver 10 is powered on, on the basis of time information stored in a time information storage region 17b1 immediately before interrupting the power source of the television broadcast receiver 10, and a time information added to a television broadcast signal received by a tuner 11 immediately after the television broadcast receiver 10 is powered on; and a display control program 17c2 used for causing the CPU 16 to control an image display unit 151 via an image decoder 15, so that the display unit 151 displays the initial setting screen if it is determined that the time exceeds the upper limit time. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a television broadcast receiver.

Conventionally, broadcast media that can be received by a television broadcast receiver include analog broadcasting, BS (Broadcasting Satellite) digital broadcasting, CS (Communication Satellite) digital broadcasting, and cable broadcasting. Furthermore, in recent years, terrestrial digital broadcasting has been added, and the number of channels that can be received is increasing.

  For example, broadcast program information called EPG (Electronic Program Guide) information is transmitted in addition to television broadcast signals (image data and audio data) corresponding to each channel from broadcasting stations that provide digital broadcasting. . Then, the user of the digital broadcast television broadcast receiver can select a channel that suits his taste from a wide variety of broadcasts according to the program table based on the EPG information displayed on the display unit of the television broadcast receiver. Can be selected.

  As a television broadcast receiver that acquires EPG information, for example, immediately after power-on, a television broadcast receiver that acquires EPG information of all channels (see, for example, Patent Document 1), according to the priority order based on usage history, A television broadcast receiver that acquires EPG information of a channel to be acquired at a time to be acquired (see, for example, Patent Document 2), acquires only EPG information to be acquired based on the EPG information type and date, and the acquisition A television broadcast receiver that determines whether or not the EPG information to be obtained can be acquired without interruption (for example, see Patent Document 3). If the acquisition of the received EPG information is not completed, the EPG information is obtained by another reception method. A television broadcast receiver (see, for example, Patent Document 4) that acquires information has been proposed.

By the way, some television broadcast receivers display an initial setting screen for setting predetermined information such as a channel on the display unit. Specifically, when information for receiving a television broadcast signal is not set, a television broadcast receiver that displays an initial setting screen for setting the information when the power is turned on (for example, Patent Documents). 5) and a television broadcast receiver that displays an initial setting screen when the power is turned on after the power is turned off.
Japanese Patent Laying-Open No. 2005-033567 JP-A-2005-026810 Japanese Patent No. 3607570 JP 2005-051613 A Japanese Patent Laid-Open No. 10-042213

  Television broadcast receivers that display an initial setting screen when the power is turned on after the power is turned off as described above are temporarily unstable due to unstable power supply or accidental disconnection. Even when the power is turned off, the initial setting screen is displayed each time, and there is a problem that extra time is required for the user.

In addition, the television broadcast receiver described in Patent Document 5 described above is used when the user wants to make initial settings again, specifically, for example, when the user wants to make initial settings again after moving. Since a predetermined operation for displaying the initial setting screen has to be performed, there is a problem that it takes extra time for the user.

  An object of the present invention is to provide a television broadcast receiver that can automatically display an initial setting screen at a suitable timing.

  In order to solve the above-mentioned problem, the invention described in claim 1 is a television broadcast receiver comprising a receiving means for receiving a television broadcast signal to which time information is added from a television broadcast wave. Time information storage means for storing time information added to the received television broadcast signal and immediately before the television broadcast receiver is turned off when the television broadcast receiver is turned on Based on the time information stored in the time information storage means and the time information added to the television broadcast signal received by the reception means immediately after the television broadcast receiver is turned on. Determination of whether or not the time until the power is turned on again after the television broadcast receiver is turned off exceeds a predetermined time And when the determination means determines that the time from when the television broadcast receiver is turned off until the power is turned on again exceeds a predetermined time, the display means And a display control means for displaying an initial setting screen for setting at least one of channel setting, time setting, and language setting.

  According to a second aspect of the present invention, there is provided a television broadcast receiver including a reception unit that receives a television broadcast signal to which time information is added from a television broadcast wave. The television broadcast signal received by the reception unit is included in the television broadcast signal. Time information storage means for storing the added time information and stored in the time information storage means immediately before the television broadcast receiver is turned off when the power of the television broadcast receiver is turned on. Based on the received time information and the time information added to the television broadcast signal received by the receiving means immediately after the power of the television broadcast receiver is turned on. A determination means for determining whether a time from when the power is shut off until the power is turned on again exceeds a predetermined time; and When it is determined that the time from when the power of the television broadcast receiver is turned off to when the power is turned on again exceeds a predetermined time, a predetermined setting in the television broadcast receiver is displayed on the display means. Display control means for displaying an initial setting screen for performing the above.

  According to a third aspect of the present invention, in the television broadcast receiver according to the second aspect, the initial setting screen displayed on the display means by the display control means is a channel setting in the television broadcast receiver. It has a channel setting screen for performing.

  According to a fourth aspect of the present invention, in the television broadcast receiver according to the second or third aspect, the initial setting screen displayed on the display unit by the display control unit is a time of the television broadcast receiver. It has a time setting screen for setting.

  According to a fifth aspect of the present invention, in the television broadcast receiver according to any one of the second to fourth aspects, the initial setting screen displayed on the display means by the display control means is the television broadcast receiver. It has a language setting screen for setting the language in the receiver.

According to the first aspect of the present invention, when the power of the television broadcast receiver is turned on by the determination means by the display control means, the power is turned on again after the power of the television broadcast receiver is turned off. When it is determined that the time until the time exceeds the predetermined time, at least one of channel setting, time setting, and language setting in the television broadcasting receiver is performed on the display means. An initial setting screen can be displayed.

  Therefore, when the power shut-off time is so short that it does not reach the predetermined time, specifically, for example, when an unexpected outlet disconnection occurs, the initial setting screen is not displayed and the power shut-off time is not displayed. When the time exceeds the predetermined time, specifically, for example, when the power is shut off for a long time due to moving, the initial setting screen is automatically displayed even if the predetermined operation is not performed. Can do. The initial setting screen can automatically prompt the user to set the channel, set the time, and set the language. That is, since the initial setting screen can be automatically displayed at a suitable timing, the user is not required to take extra time.

  According to the invention of claim 2, when the power of the television broadcast receiver is turned on by the display control means and the judgment means, the power of the television broadcast receiver is turned off and then turned on again. When it is determined that the time until it exceeds a predetermined time, an initial setting screen for performing a predetermined setting in the television broadcast receiver can be displayed on the display means.

  Therefore, when the power shut-off time is so short that it does not reach the predetermined time, specifically, for example, when an unexpected outlet disconnection occurs, the initial setting screen is not displayed and the power shut-off time is not displayed. When the time exceeds the predetermined time, specifically, for example, when the power is shut off for a long time due to moving, the initial setting screen is automatically displayed even if the predetermined operation is not performed. Can do. That is, since the initial setting screen can be automatically displayed at a suitable timing, the user is not required to take extra time.

  According to the third aspect of the present invention, it is needless to say that the same effect as the second aspect of the invention can be obtained, and the initial setting screen is a channel for setting a channel in the television broadcast receiver. Since the setting screen is provided, for example, when the receivable channel changes due to moving, it is effective to automatically prompt the user to set the channel.

  According to the invention described in claim 4, it is needless to say that the same effect as that of the invention described in claim 2 or 3 can be obtained, and the initial setting screen is used for setting the time in the television broadcast receiver. For example, when the time of the place where the television broadcast receiver is installed changes due to the time difference due to moving, the user can be automatically prompted to set the time. It is effective.

  According to the invention described in claim 5, it is needless to say that the same effect as in the invention described in any one of claims 2 to 4 can be obtained, and the initial setting screen is a language in the television broadcast receiver. Because it has a language setting screen for making settings, for example, when a user changes due to resale of a television broadcast receiver as a used product, the user is automatically prompted to set the language. Can be effective.

Hereinafter, the best mode of a television broadcast receiver according to the present invention will be described in detail with reference to the drawings. The scope of the invention is not limited to the illustrated example.
<Configuration of television broadcast receiver>
First, the configuration of the television broadcast receiver 10 will be described with reference to FIG.

The television broadcast receiver 10 is connected to a tuner 11 having an antenna 111, a demodulator 12, a TS (Transport Stream) decoder 13, an audio decoder 14, and an audio decoder 14, for example, as shown in FIG. Audio output unit 141, image decoder 15, image display unit 151 connected to image decoder 15, and CPU (Central Processing Unit)
16, a RAM (Random Access Memory) 17 a, a non-volatile memory 17 b, a storage unit 17 c, a remote control receiving unit 18, and a remote controller 181 for the television broadcast receiver 10 that can communicate with the remote control receiving unit 18 (hereinafter referred to as a remote controller 181). , “Remote controller 181”). The tuner 11, the demodulator 12, the TS decoder 13, the audio decoder 14, the image decoder 15, the CPU 16, the RAM 17a, the non-volatile memory 17b, the storage unit 17c, and the remote control receiving unit 18 are respectively buses. B is connected.

  The tuner 11 includes an antenna 111, and the tuner 11 and the antenna unit 111 constitute a receiving unit.

  Specifically, the tuner 11 and the antenna 111 receive, for example, a television broadcast signal to which time information is added from a television broadcast wave as reception means.

  More specifically, the tuner 11 exists in a frequency band corresponding to a channel of a broadcast program desired by the user from among digital television broadcast waves received by the antenna 111, for example, in accordance with an instruction from the CPU 16. A television broadcast signal is received, and the received television broadcast signal is modulated into an intermediate frequency signal (IF signal) and output.

  For example, the demodulator 12 performs processing such as digital demodulation and error correction on the IF signal output from the tuner 11 in accordance with an instruction from the CPU 16 and outputs a stream (for example, a transport stream).

  For example, according to an instruction from the CPU 16, the TS decoder 13 decodes the transport stream output from the demodulator 12 to determine each transport packet constituting the transport stream, and relates to a broadcast program desired by the user. Data relating to the transport packet is separated into compressed image data, compressed audio data, time information, and the like, and output.

  For example, the audio decoder 14 decodes the compressed audio data output from the TS decoder 13 in accordance with an instruction from the CPU 16 and outputs the decoded audio data to the audio output unit 141.

  The audio output unit 141 includes, for example, a speaker (not shown), and outputs audio based on the audio data output from the audio decoder 14.

  For example, the image decoder 15 decodes the compressed image data output from the TS decoder 13 in accordance with an instruction from the CPU 16 and outputs the decoded image data to the image display unit 151.

  Further, the image decoder 15 outputs information related to the initial setting screen to the image display unit 151 according to an instruction from the CPU 16, for example.

  The image display unit 151 includes, for example, a display screen such as a liquid crystal system (not shown) as a display unit, and outputs an image based on image data output from the image decoder 15 or information on an initial setting screen.

  The CPU 16 performs various control operations according to various processing programs for the television broadcast receiver 10 stored in the storage unit 17c.

  The RAM 17a includes a program storage area for expanding a processing program executed by the CPU 16, a data storage area for storing input data, a processing result generated when the processing program is executed, and the like.

  The nonvolatile memory 17b includes at least a flash memory that can rewrite data.

  Specifically, the nonvolatile memory 17b includes a time information storage area 17b1 and the like as shown in FIG. 1, for example.

  The time information storage area 17b1 stores time information added to the television broadcast signal received by the tuner 11 as time information storage means.

  Specifically, when the time information separated from the television broadcast signal received by the tuner 11 is output from the TS decoder 13 via the demodulator 12 in accordance with the instruction of the CPU 16, the CPU 16 outputs the output time. Information is stored in the time information storage area 17b1.

More specifically, for example, the CPU 16 stores the current time information separated from the STT (System Time Table) of the television broadcast signal received by the tuner 11 in the time information storage area 17b1.

  Note that the time information stored in the time information storage area 17b1 is updated sequentially.

  The storage unit 17c is a system program that can be executed by the television broadcast receiver 10, various processing programs that can be executed by the system program, data that is used when these various processing programs are executed, and various types of arithmetic processing performed by the CPU 16. The result data is stored. Note that the program is stored in the storage unit 17c in the form of a computer-readable program code.

  Specifically, the storage unit 17c stores, for example, a determination program 17c1, a display control program 17c2, and the like as illustrated in FIG.

  The determination program 17c1 is stored in the time information storage area 17b1 of the nonvolatile memory 17b immediately before the power of the television broadcast receiver 10 is turned off when the power of the television broadcast receiver 10 is turned on. The television broadcast receiver 10 is powered on the basis of the time information and the time information added to the television broadcast signal received by the tuner 11 immediately after the television broadcast receiver 10 is turned on. A function for determining whether or not the time from when the power is shut off until the power is turned on again exceeds an upper limit time as a predetermined time set in advance is realized.

  Here, “the power of the television broadcast receiver 10 is cut off” means that, for example, a plug (not shown) provided on a power cord (not shown) of the television broadcast receiver 10 is an outlet (not shown). It means that the power of the television broadcast receiver 10 is cut off due to the disconnection, or the power of the television broadcast receiver 10 is cut off due to the unstable power supply.

  Further, “the power of the television broadcast receiver 10 is turned on” means that, for example, a plug (not shown) provided on a power cord (not shown) of the television broadcast receiver broadcast receiver 10 is an outlet (not shown). The power supply of the television broadcast receiver 10 is turned on or the supply of power is stabilized by pressing the power switch (not shown) of the television broadcast receiver. This means that the television broadcast receiver 10 is turned on.

  The CPU 16 functions as a determination unit by executing the determination program 17c1.

  The display control program 17c2 determines that the time from when the power of the television broadcast receiver 10 is turned off to when the power is turned on again exceeds the upper limit time by the CPU 16 executing the determination program 17c1. In this case, a function for displaying an initial setting screen for performing a predetermined setting in the television broadcast receiver 10 on the image display unit 151 via the image decoder 15 is realized.

  Specifically, the initial setting screen that the CPU 16 that has executed the display control program 17c2 displays on the image display unit 151 via the image decoder 15 is a channel setting screen for setting a channel in the television broadcast receiver 10. At least one of a time setting screen for setting the time in the television broadcast receiver 10 and a language setting screen for setting the language in the television broadcast receiver 10 is included.

  On the channel setting screen, for example, a receivable channel can be automatically set at a place where the television broadcast receiver 10 is installed.

  On the time setting screen, for example, the time (local time) of the place where the television broadcast receiver 10 is installed can be automatically set.

  On the language setting screen, for example, a user-desired language can be set, and when a television broadcast signal corresponding to multilingual broadcasting is received, the audio output unit 141 outputs the audio of the set language. The image display unit 151 can output or display a character image of the set language.

  Of course, the initial setting screen is not only displayed on the image display unit 151 by the CPU 16 that has executed the display control program 17c2, but, for example, when the user instructs to display the initial setting screen by operating the remote controller 181. Is also displayed on the image display unit 151 by the CPU 16 according to the instruction.

  Note that the channel, time, language, and the like set on the initial setting screen are stored in a predetermined area (not shown) of the nonvolatile memory 17b, for example. Each time it is set, the channel, time, language, etc. stored in the nonvolatile memory 17b are updated.

  The CPU 16 functions as a display control unit by executing the display control program 17c2.

For example, the remote control reception unit 18 receives various signals transmitted from the remote control 181 and outputs information based on the various signals.
<Initial setting screen display processing>
Next, processing relating to the display of the initial setting screen when the power is turned on in the television broadcast receiver 10 will be described with reference to the flowchart of FIG.

  Here, it is assumed that the power of the television broadcast receiver 10 is cut off.

  First, when the power of the television broadcast receiver 10 is turned on (step S11), the CPU 16 receives the television broadcast signal from the television broadcast signal received by the tuner 11 via the demodulator 12 and the TS decoder 13. The time information added to is acquired (step S12).

  Next, the CPU 16 acquires time information from the time information storage area 17b1 of the nonvolatile memory 17b (step S13).

  Specifically, in step S13, the time information stored in the time information storage area 17b1 is acquired immediately before the television broadcast receiver 10 is turned off.

  Next, the CPU 16 executes the determination program 17c1, and based on the time information acquired in step S13 and the time information acquired in step S12, the power of the television broadcast receiver 10 is turned off and then turned on again. It is determined whether or not the time until the power is turned on (power cut-off time) exceeds a preset upper limit time (step S14).

  If it is determined in step S14 that the power shut-off time does not exceed the upper limit time (step S14; No), the CPU 16 ends the process.

  On the other hand, if it is determined in step S14 that the power-off time exceeds the upper limit time (step S14; Yes), the CPU 16 executes the display control program 17c2 and initializes the image display unit 151 via the image decoder 15. A screen is displayed (step S15), and this process is terminated.

  According to the television broadcast receiver 10 in the present embodiment described above, the tuner 11 can receive a television broadcast signal to which time information is added from a television broadcast wave, and the time in the nonvolatile memory 17b. Time information added to the television broadcast signal received by the tuner 11 can be stored in the information storage area 17b1, and the power of the television broadcast receiver 10 is turned on by the CPU 16 executing the determination program 17c1. In this case, the time information stored in the time information storage area 17b1 immediately before the power of the television broadcast receiver 10 is shut off and the tuner 11 received immediately after the power of the television broadcast receiver 10 is turned on. Based on the time information added to the television broadcast signal, It can be determined whether or not the time from when the power of the transceiver 10 is turned off to when the power is turned on again exceeds a preset upper limit time, and is determined by the CPU 16 that has executed the display control program 17c2. When the CPU 16 executing the program 17c1 determines that the time from when the television broadcast receiver 10 is turned off until the power is turned on again exceeds the preset upper limit time, the image decoder 15 A channel setting screen for setting a channel in the television broadcast receiver 10, a time setting screen for setting a time in the television broadcast receiver 10, and a television broadcast receiver. Initial time having at least one of time setting screens for setting language in 10 It is possible to display a constant screen.

  Therefore, when the power shut-off time is so short that it does not reach the upper limit time, specifically, for example, when an accidental disconnection occurs, the initial setting screen is not displayed and the power shut-off time is not displayed. When the upper limit time is exceeded, specifically, for example, when the power is shut off for a long time due to moving, the initial setting screen can be automatically displayed even if a predetermined operation is not performed. . The initial setting screen can automatically prompt the user to set the channel, set the time, and set the language. That is, since the initial setting screen can be automatically displayed at a suitable timing, the user is not required to take extra time.

  The present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist thereof.

  The upper limit time is set in advance, but is not limited to this, and may be set, for example, by an operation of the remote controller 181 by the user.

  The initial setting screen can include any suitable setting screen in addition to the channel setting screen, the time setting screen, and the language setting screen.

It is a block diagram which shows the functional structure of the television broadcast receiver in this Embodiment. It is a flowchart for demonstrating the process regarding the display of the initial setting screen at the time of power activation in a television broadcast receiver.

Explanation of symbols

10 Television Broadcasting Receiver 11 Tuner (Receiving means)
111 Antenna (receiving means)
16 CPU (determination means, display control means)
17b1 Time information storage area (time information storage means)
17c1 determination program (determination means)
17c2 Display control program (display control means)
151 Image display unit (display means)

Claims (5)

In a television broadcast receiver comprising a receiving means for receiving a television broadcast signal to which time information is added from a television broadcast wave,
Time information storage means for storing time information added to the television broadcast signal received by the receiving means;
When the power of the television broadcast receiver is turned on, the time information stored in the time information storage means immediately before the power of the television broadcast receiver is turned off, and the power of the television broadcast receiver From the time the television broadcast receiver is turned off to the time the power is turned on again based on the time information added to the television broadcast signal received by the receiving means immediately after being turned on. Determination means for determining whether the time exceeds a predetermined time; and
When the determination means determines that the time from when the television broadcast receiver is turned off until the power is turned on again exceeds a predetermined time, the display means receives the television broadcast reception. Display control means for displaying an initial setting screen for setting at least one of channel setting, time setting, and language setting in the machine,
A television broadcast receiver comprising: In a television broadcast receiver comprising a receiving means for receiving a television broadcast signal to which time information is added from a television broadcast wave,
Time information storage means for storing time information added to the television broadcast signal received by the receiving means;
When the power of the television broadcast receiver is turned on, the time information stored in the time information storage means immediately before the power of the television broadcast receiver is turned off, and the power of the television broadcast receiver From the time the television broadcast receiver is turned off to the time the power is turned on again based on the time information added to the television broadcast signal received by the receiving means immediately after being turned on. Determination means for determining whether the time exceeds a predetermined time; and
When the determination means determines that the time from when the television broadcast receiver is turned off until the power is turned on again exceeds a predetermined time, the display means receives the television broadcast reception. Display control means for displaying an initial setting screen for performing predetermined settings in the machine;
A television broadcast receiver comprising: The television broadcast receiver according to claim 2,
The television broadcast receiver, wherein the initial setting screen displayed on the display means by the display control means includes a channel setting screen for setting a channel in the television broadcast receiver. The television broadcast receiver according to claim 2 or 3,
The television broadcast receiver, wherein the initial setting screen displayed on the display means by the display control means includes a time setting screen for setting the time in the television broadcast receiver. In the television broadcast receiver as described in any one of Claims 2-4,
The television broadcast receiver, wherein the initial setting screen displayed on the display means by the display control means includes a language setting screen for setting a language in the television broadcast receiver.

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