JP2009021960A - Signal receiving apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cancel trouble of a broadcast signal receiving apparatus with transition from terrestrial analog broadcast to terrestrial digital broadcast. <P>SOLUTION: An analog tuner ON/OFF determining section 12D acquires the present date and time from a clock information acquisition section 12A, acquires a terrestrial analog broadcast wave reception judging result from a tuner channel selection section 12B, or acquires a terrestrial analog broadcast wave reception judging result from an analog program guide acquisition section 12C and determines whether an analog tuner 14 is receiving a terrestrial analog broadcast wave or not. In a case where it is determined that the analog tuner 14 is not receiving the terrestrial analog broadcast wave, the analog tuner ON/OFF determining section 12D generates a control signal for changing over a switch 13 from ON to OFF, supplies the control signal to the switch 13 and controls to change over the switch 13 from ON to OFF. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a signal receiving apparatus having a function of eliminating problems associated with a shift to a different system.

  Digital terrestrial broadcasting has been staged by changing the analog frequency since it was started in December 2003 using the UHF (Ultra-High Frequency) band in the three major metropolitan areas of Tokyo, Osaka, and Nagoya. The transmission power is increased. Digital terrestrial broadcasting provides high-quality video and audio, multi-channel, stable mobile reception services, expansion of business opportunities by providing various broadcasting services, energy savings by reducing transmission power, It brings great advantages to both viewers and broadcasters, such as the realization of broadcast services that utilize interactive capabilities that can be integrated. On the other hand, terrestrial analog broadcasting is scheduled to end by July 2011. For this reason, various reception control techniques have been proposed at the time of switching from terrestrial analog broadcasting to terrestrial digital broadcasting.

  Many digital devices capable of receiving terrestrial digital broadcasts include not only digital tuners but also analog tuners. For example, Patent Document 1 discloses a technology of a receiving apparatus capable of receiving both analog and digital broadcast program data with low power consumption.

JP 2007-88717 A

  However, such a receiver capable of receiving both analog and digital broadcast program data is still powered by the analog tuner even when the terrestrial analog broadcast wave is actually stopped. The reception function for terrestrial analog broadcasts remains, such as when the settings for analog tuner are still displayed on the menu screen, and the user selects an analog channel by mistake when the terrestrial analog broadcast ends. If this happens, problems may occur.

  The present invention has been proposed in view of such a conventional situation, and an object of the present invention is to provide a signal receiving apparatus that eliminates problems that occur after the end of terrestrial analog broadcasting.

  In order to achieve the above-described object, a signal receiving apparatus according to the present invention includes an analog broadcast signal receiving unit that receives an analog broadcast signal, and an analog stoppage determining unit that determines whether or not reception of the analog broadcast signal is stopped. And a control means for controlling the power supply of the analog broadcast signal receiving means to be cut off when the analog broadcast signal receiving means determines that reception of the analog broadcast signal has been stopped. To do.

  In order to achieve the above-described object, a signal receiving apparatus according to the present invention includes an analog broadcast signal receiving unit that receives an analog broadcast signal, and an analog stop signal that determines whether or not reception of the analog broadcast signal is stopped. And a control means for controlling to notify the stop of the reception of the analog broadcast signal when the analog stop signal determination means determines that the reception of the analog broadcast signal is stopped. And

  In order to achieve the above-described object, a signal receiving apparatus according to the present invention includes an analog broadcast signal receiving unit that receives an analog broadcast signal, and an analog stop signal that determines whether or not reception of the analog broadcast signal is stopped. Determining means, and control means for controlling the display related to reception of the analog broadcast signal to be deleted from the menu display screen when it is determined by the analog stop signal determining means that reception of the analog broadcast signal has been stopped. It is characterized by providing.

  According to the present invention, it is possible to prevent a user from accidentally selecting an analog broadcast after the end of the analog broadcast, thereby improving convenience and realizing energy saving.

  Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing an internal configuration of a television broadcast signal receiving apparatus 1 in the present embodiment. The television broadcast signal receiving apparatus 1 includes a power source 11, a system controller 12 as control means, a switch 13, an analog tuner 14, a video processing unit 15, a digital tuner 16, a decoder 17, and a display processing unit 18. And a display unit 19. Hereinafter, the analog tuner 14 receives a terrestrial analog television broadcast signal (terrestrial analog television broadcast wave), and the digital tuner 16 receives a terrestrial digital television broadcast signal (terrestrial digital television broadcast wave). To do.

  The power supply 11 supplies power to the analog tuner 14 through a power supply line provided with a switch 13. Power supply from the power source 11 to the analog tuner 14 is performed when the switch 13 is turned on based on the control of an analog tuner on / off determination unit 12D described later, but the switch 13 is turned off. If not, it will not be done. The power supply 11 also supplies power to the digital tuner 16 through a power supply line different from the power supply line to the analog tuner 14.

  The system controller 12 includes a clock information acquisition unit 12A, a tuner channel selection unit 12B, an analog program guide acquisition unit 12C, an analog tuner on / off determination unit 12D, and a menu data generation unit 12E. The system controller 12 includes a CPU, a ROM, and a RAM. The CPU reads out a control program stored in the ROM and executes it on the RAM, thereby controlling the processing of the functional blocks of the system controller 12 and the television. The overall processing of the John broadcast signal receiving apparatus 1 is controlled.

  The clock information acquisition unit 12A acquires current date and time information (clock information) from time information included in a digital terrestrial television broadcast signal received by the digital tuner 16, for example.

  The tuner tuning unit 12B performs a channel search for the analog tuner 14 and determines whether channel search information can be acquired.

  The analog program guide acquisition unit 12C performs an EPG (Electric Program Guide) signal detection process in the terrestrial analog broadcast from the analog tuner 14 and generates EPG detection result information indicating whether the EPG signal is detected.

  The analog tuner on / off determination unit 12D determines whether or not the analog tuner 14 has received the terrestrial analog broadcast wave. If it is determined that reception of the terrestrial analog broadcast wave has been stopped, the analog tuner on / off determination unit 12D Various controls associated with the wave stop are performed.

  The analog tuner on / off determination unit 12D acquires the current date and time from the clock information acquisition unit 12A. The analog tuner on / off determination unit 12D determines that reception of the terrestrial analog broadcast wave is stopped when the current date exceeds a predetermined analog broadcast stoppage date, July 25, 2011. judge.

  When the tuner selection unit 12B has received a terrestrial analog broadcast wave as a result of performing a channel search on the analog tuner 14, it generates channel search information indicating that the terrestrial analog broadcast is being broadcast. On the other hand, as a result of performing a channel search for the analog tuner 14, the tuner selection unit 12B generates channel search information indicating that the terrestrial analog broadcast is not being broadcast if the terrestrial analog broadcast cannot be received.

  The analog tuner on / off determination unit 12D acquires channel search information from the tuner channel selection unit 12B. The analog tuner on / off determination unit 12D determines that reception of terrestrial analog broadcast waves is stopped when channel search information indicating that channel search is not performed is acquired from the tuner selection unit 12B.

  The analog tuner on / off determination unit 12D acquires EPG detection result information from the analog program guide acquisition unit 12C. The analog tuner on / off determination unit 12D determines that reception of the terrestrial analog broadcast wave is stopped when the EPG detection result information indicating that the EPG signal is not detected is acquired from the analog program guide acquisition unit 12C. To do.

  Thus, the analog tuner on / off determination unit 12D acquires the current date and time from the clock information acquisition unit 12A, acquires the reception determination result of the terrestrial analog broadcast wave from the tuner selection unit 12B, or The reception determination result of the terrestrial analog broadcast wave is acquired from the analog program guide acquisition unit 12C, and it is determined whether or not the analog tuner 14 is receiving the terrestrial analog broadcast wave.

  When the analog tuner on / off determination unit 12D determines that the analog tuner 14 has not received the terrestrial analog broadcast wave, the analog tuner on / off determination unit 12D generates a control signal for turning the switch 13 from on to off. Supplying to the switch 13 performs control to turn the switch 13 from on to off. On the other hand, when the analog tuner on / off determination unit 12D determines that the analog tuner 14 is receiving a terrestrial analog broadcast wave, the analog tuner on / off determination unit 12D does not generate this control signal, and the switch 13 is kept on. .

  The control processing performed by the analog tuner on / off determination unit 12D is not limited to this. For example, when the analog tuner 14 determines that the terrestrial analog broadcast wave is not received, the display included in the display unit 19 Control may be performed to delete the display related to reception of analog terrestrial broadcast waves from the menu display screen.

For example, as shown in FIG. 2A, a menu screen has a plurality of broadcast icons (for example, music broadcast a ₁ , movie broadcast a ₂ , terrestrial analog broadcast a ₃ , terrestrial digital broadcast a ₄ , BS digital broadcast a ₅ , CS Digital broadcast a ₆ etc.) and the user moves the cursor to the icon of terrestrial analog broadcast a ₃ to select a terrestrial analog broadcast channel (eg channel 8, channel 10, channel 12, channel 14, channel 16 etc.) a display _{X 1} is performed. Analog tuner ON / OFF determination unit 12D, when the analog tuner 14 is determined that it has not received the terrestrial analog broadcast waves, and generates a control signal for deleting the selected display X ₁ for analog broadcasting channel selection.

For example, as shown in FIG. 2B, the menu screen has a plurality of function setting icons (for example, BS / CS digital viewing age limit b ₁ , digital broadcast area setting b ₂ , terrestrial analog channel setting b ₃ , terrestrial Analog channel scan b ₄ , terrestrial analog automatic stereo reception b ₅ , G guide setting b _6, etc.), and the user moves the cursor to, for example, terrestrial analog channel scan b ₄ , the icon setting for terrestrial analog channel scan is set. Suppose it is made. When the analog tuner on / off determination unit 12D determines that the analog tuner 14 has not received the terrestrial analog broadcast wave, for example, the terrestrial analog channel setting b ₃ , the terrestrial analog channel scan b ₄ , and the terrestrial analog automatic stereo reception b ₅ , and it generates a control signal for deleting the ground selection display X ₂ for receiving setting of an analog broadcast wave consisting of G guide setting b _6.

  The analog tuner on / off determination unit 12D supplies the generated control signal to the menu data generation unit 12E. The menu data generation unit 12E generates menu data for deleting display related to reception of terrestrial analog broadcast waves based on the control signal supplied from the analog tuner on / off determination unit 12D, and displays the menu data as a display processing unit. 18 is supplied. When the analog tuner on / off determination unit 12D determines that the analog tuner 14 is receiving a terrestrial analog broadcast wave, the setting screen of the analog tuner 14 is maintained without generating this control signal. .

  Further, for example, when the analog tuner on / off determination unit 12D determines that the analog tuner 14 has not received the terrestrial analog broadcast wave, the analog tuner 14D broadcasts even if the user selects a terrestrial analog broadcast channel by remote control operation. Control may be performed so that the channel is switched from a terrestrial analog broadcast channel to a terrestrial digital broadcast channel.

  Further, for example, the analog tuner on / off determination unit 12D performs control to stop the acquisition of the EPG signal in the analog broadcast when the analog tuner 14 determines that the terrestrial analog broadcast wave is not received. May be.

  It should be noted that which control processing is performed by the analog tuner on / off determination unit 12D can be set in advance by a user operation.

  When the switch 13 is turned from OFF to ON under the control of the analog tuner ON / OFF determination unit 12D, the analog tuner 14 is supplied with power from the power supply 11 through a power supply line provided with the switch 13. When the analog tuner 14 is supplied with power from the power supply 11, the analog tuner 14 receives a signal of a terrestrial analog broadcast wave that the user desires to view from an RF (Radio Frequency) broadcast wave of a terrestrial analog television broadcast received by an antenna (not shown). The selected broadcast signal is demodulated, and the obtained broadcast signal is supplied to the video processing unit 15.

  When a broadcast signal is supplied from the analog tuner 14, the video processing unit 15 supplies a video signal and an audio signal obtained by performing predetermined signal processing on the broadcast signal to the display processing unit 18.

  When the digital tuner 16 is supplied with power from the power source 11, for example, an RF signal of a terrestrial digital broadcast wave that the user desires to view from a signal modulated based on an OFDM (Orthogonal Frequency Division Multiplexing) modulation scheme, for example. The channel stream is selected and demodulated, and transport stream data in which video data and audio data are multiplexed is supplied to the decoder 17.

  When the transport stream data in which the video data and the audio data are multiplexed is supplied from the digital tuner 16, the decoder 17 decodes the transport stream data, converts it into a video signal and an audio signal, and displays the display processing unit. 18 is supplied.

  The display processing unit 18 performs switching processing between the video signal supplied from the video processing unit 15 and the video signal supplied from the decoder 17, and then the video signal specified by the switching processing and the menu data generation unit 12E. A mixing process for mixing the supplied menu data is performed, and the mixed video signal is supplied to the display unit 19.

  The display unit 19 includes a display such as an LCD (Liquid Crystal Display) or a CRT (Cathode Ray Tube), and displays the video signal supplied from the display processing unit 18 on the display.

Note that the television broadcast signal receiving apparatus 1 can turn the analog tuner 14 from off to on even when the analog tuner 14 is once turned off. Switching process from off of the analog tuner 14 to turn on, for example, depending on the menu selection operation of the user to display the ON / OFF setting menu c ₁ analog tuner 14 shown in FIG. 3, the user turns on the analog tuner This is realized by performing the selection operation, and by setting the analog tuner 14 to be returned to the factory default, for example, by the user's menu selection operation.

  An example of the control processing operation based on the stop of the terrestrial analog broadcast wave in the television broadcast signal receiving apparatus 1 having such a configuration will be described with reference to the flowchart of FIG.

  In step S1, the system controller 12 starts a control process based on stopping of the terrestrial analog broadcast wave.

  In step S2, the analog tuner on / off determination unit 12D acquires the current date from the clock information acquisition unit 12A, and the acquired current date is a predetermined analog broadcast stop date, July 25, 2011. It is determined whether or not. If it is determined in step S2 that the current date has passed July 25, 2011, the process proceeds to step S3. If it is determined that the current date has not passed July 25, 2011, step S3 is performed. Proceed to S6.

  In step S3, the analog tuner on / off determination unit 12D supplies the menu data generation unit 12E with a control signal for displaying a menu display that allows the user to select whether or not the analog tuner 14 is to be turned off. The menu data generation unit 12E generates menu data for menu display that allows the user to select whether to turn off the analog tuner 14 based on the control signal supplied from the analog tuner on / off determination unit 12D. This is supplied to the display unit 19 via the unit 18. The display unit 19 displays this menu display on the display based on the obtained menu data.

  In step S4, the analog tuner on / off determination unit 12D determines whether or not to turn off the analog tuner 14 based on a signal input by a user setting operation. In step S4, the analog tuner on / off determination unit 12D proceeds to step S5 when it is determined to turn off the analog tuner 14, and proceeds to step S6 when it is determined not to turn off the analog tuner 14.

  In step S5, the analog tuner on / off determination unit 12D generates a control signal for turning off the analog tuner 14 from on, supplies the control signal to the switch 13, and controls the switch 13 to turn off. I do.

  In this processing operation, as shown by the broken line in FIG. 4, when the analog tuner on / off determination unit 12D determines in step S2 that the current date has passed July 25, 2011, step S3 and You may make it progress to step S5, without passing through step S4.

  In step S6, the system controller 12 ends the control process based on the stop of the terrestrial analog broadcast wave.

  Further, another example of the control processing operation based on the stop of the terrestrial analog broadcast wave in the television broadcast signal receiving apparatus 1 will be described with reference to the flowchart of FIG.

  In step S11, the system controller 12 starts a control process based on the stop of the terrestrial analog broadcast wave.

  In step S12, the tuner selection unit 12B performs a channel search for the analog tuner 14 and determines whether the analog tuner 14 is receiving a terrestrial analog broadcast wave. In step S12, when the tuner tuning unit 12B determines that the analog tuner 14 is receiving a terrestrial analog broadcast wave, the tuner selection unit 12B generates channel search information indicating that the terrestrial analog broadcast is being broadcast, and the analog tuner on / Off determination unit 12D, and the process proceeds to step S13. On the other hand, when the tuner tuner 12B determines that the analog tuner 14 has not received the terrestrial analog broadcast wave, the tuner selection unit 12B generates channel search information indicating that the terrestrial analog broadcast is not being broadcast, and determines whether the analog tuner is on or off. Then, the process proceeds to step S14.

  In step S <b> 13, the analog tuner on / off determination unit 12 </ b> D determines whether or not a channel switching operation for terrestrial analog broadcasting is performed by the user. Specifically, in this step S13, the analog tuner on / off determination unit 12D determines whether or not the channel switching operation of the terrestrial analog broadcast is performed by the user for a certain period (for example, one month), that is, the user performs a certain period of time. It is determined whether or not terrestrial analog broadcasting is being viewed. In this step S13, when the analog tuner on / off determination unit 12D determines that the channel switching operation of the terrestrial analog broadcast is performed by the user for a certain period of time, that is, the user is viewing the terrestrial analog broadcast, The process proceeds to step S17, and if it is determined that the terrestrial analog broadcast channel switching operation is not performed by the user for a certain period of time and only the terrestrial digital broadcast channel switching operation is performed, the process proceeds to step S14.

  In step S14, the analog tuner on / off determination unit 12D supplies the menu data generation unit 12E with a control signal for displaying a menu display that allows the user to select whether or not to turn off the analog tuner 14. The menu data generation unit 12E generates menu display menu data that allows the user to select whether or not to turn off the analog tuner 14 based on the control signal supplied from the analog tuner on / off determination unit 12D. 18 to the display unit 19. The display unit 19 displays this menu display on the display based on the obtained menu data.

  In step S15, the analog tuner on / off determination unit 12D determines whether or not to turn off the analog tuner 14 based on a signal input by the user's setting operation. In step S15, the analog tuner on / off determination unit 12D proceeds to step S16 if it is determined to turn off the analog tuner 14, and proceeds to step S17 if it is determined not to turn off the analog tuner 14.

  In this processing operation, as shown by the broken line in FIG. 5, the analog tuner on / off determination unit 12D does not perform the terrestrial analog broadcast channel switching operation by the user at any time for a certain period of time. When it is determined that only the digital broadcast channel switching operation is performed, the process may proceed to step S16 without passing through steps S14 and S15.

  The television broadcast signal receiving apparatus 1 according to the present embodiment described above prevents the user from accidentally selecting a terrestrial analog broadcast after the terrestrial analog broadcast ends, improves convenience and saves energy. Can be realized.

  It should be noted that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  In the above-described embodiment, when the analog tuner 14 determines that the terrestrial analog broadcast wave is not received, the control process based on the stop of the terrestrial analog broadcast wave is performed. However, for example, when the analog tuner is not used. Alternatively, the control process may be performed by the user performing a selection operation so that the analog tuner is turned off in the analog tuner on / off menu included in the menu display.

  Further, for example, when the analog tuner on / off determination unit 12D determines that the analog tuner 14 has not received the terrestrial analog broadcast wave, the terrestrial analog broadcast on the menu display screen displayed on the display included in the display unit 19 is provided. Instead of deleting the display related to the reception of waves, the display related to the reception of terrestrial analog broadcast waves may be changed to reduce the brightness or change from color to monochrome, and the user may move the cursor to this display. You may make it perform control which cannot perform selection operation.

It is a figure which shows the structure of the television broadcast signal receiver in this Embodiment. (A) is a figure which shows the channel display of the terrestrial analog broadcast in a home menu, (B) is a figure which shows the reception setting display of a terrestrial analog broadcast. It is a figure which shows the menu display screen for setting ON or OFF of an analog tuner. It is a figure which shows an example of the control processing operation | movement based on the stop of a terrestrial analog broadcast wave. It is a figure which shows an example of the control processing operation | movement based on the stop of a terrestrial analog broadcast wave.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Television broadcast signal receiver, 11 Power supply, 12 System controller, 13 Switch, 14 Analog tuner, 15 Video processing part, 16 Digital tuner, 17 Decoder, 18 Display processing part, 19 Display part

Claims (10)

An analog broadcast signal receiving means for receiving an analog broadcast signal;
Analog stoppage determination means for determining whether or not reception of the analog broadcast signal is stopped;
Control means for controlling the power supply of the analog broadcast signal receiving means to be shut off when it is determined by the analog stop signal judging means that reception of the analog broadcast signal has been stopped. Receiver device.   2. The signal receiving apparatus according to claim 1, further comprising digital broadcast signal receiving means for receiving a digital broadcast signal.   The analog stop signal judging means judges that the reception of the analog broadcast signal is stopped when the current date supplied from the clock information acquisition unit exceeds a predetermined analog broadcast stop date. The signal receiving apparatus according to claim 1, wherein the signal receiving apparatus is performed.   The analog stop signal judging means judges that the reception of the analog broadcast signal is stopped when it is judged that there is no analog broadcast as a result of the channel search for the analog broadcast signal receiving means. The signal receiving apparatus according to claim 1.   The analog stop signal judging means judges that reception of the analog broadcast signal is stopped when the analog broadcast signal receiving means does not receive an EPG (Electric Program Guide) signal. 1. The signal receiving device according to 1.   The control means controls to delete the reception operation display of the analog broadcast signal from the menu display screen when it is determined by the analog stoppage determination means that reception of the analog broadcast signal is stopped. The signal receiving device according to claim 1.   The control means displays an on / off selection menu for turning on or off the analog broadcast signal receiving means on the display unit according to a user operation, and is selected to turn on the analog broadcast signal receiving means. 2. The signal receiving apparatus according to claim 1, wherein said analog broadcast signal receiving means is controlled to be turned on in the event of a failure.   The control means displays an on / off selection menu for turning on or off the analog broadcast signal receiving means on the display unit according to a user operation, and is selected to turn off the analog broadcast signal receiving means. 2. The signal receiving apparatus according to claim 1, wherein the analog broadcast signal receiving means is controlled to be turned off in the event of a failure. An analog broadcast signal receiving means for receiving an analog broadcast signal;
Analog stoppage determination means for determining whether or not reception of the analog broadcast signal is stopped;
Control means for controlling to notify the stop of reception of the analog broadcast signal when it is determined by the analog stop signal determination means that reception of the analog broadcast signal has been stopped. apparatus. An analog broadcast signal receiving means for receiving an analog broadcast signal;
Analog stoppage determination means for determining whether or not reception of the analog broadcast signal is stopped;
Control means for controlling the display related to reception of the analog broadcast signal to be deleted from the menu display screen when it is determined by the analog stop signal determination means that reception of the analog broadcast signal has been stopped. A signal receiving device.

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