JP2008085553A - Broadcast receiving device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a broadcast receiving device that eliminates inconvenience when receiving the analog broadcasting after the end of terrestrial analog broadcasting. <P>SOLUTION: The broadcast receiving device 10 is provided with a terrestrial analog broadcasting receiving part 19, a terrestrial digital broadcasting receiving part 18, an operation part 12, which includes a mode switching key for executing switching of reception modes and a plurality of channel selection keys for executing channel selection of a broadcasting radio wave at a desired frequency for each reception mode, a channel selection table 24, which stores a plurality of frequencies while making each of them correspond to the channel selection key for each reception mode, and a clocking part 23. When a switching operation to the terrestrial analog broadcasting is executed, the clocking part 23 acquires the current time and date. When determined that it passes the end day of the terrestrial analog broadcasting, a control part controls so as to receive a broadcasting radio wave of the terrestrial digital broadcasting and receives the broadcasting radio wave while referring to the channel selection table 24 made to correspond to the terrestrial digital broadcasting. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a broadcast receiving apparatus suitable for a situation in which terrestrial analog broadcasting and terrestrial digital broadcasting are mixed, and in particular, the channel selection operation is facilitated after the terrestrial analog broadcast ends, and the terrestrial analog broadcast ends. To avoid confusion for users who are not conscious of terrestrial broadcasting, if the analog tuning key operation is performed after switching to terrestrial analog broadcasting after the terrestrial analog broadcasting end date, The present invention relates to a broadcast receiving apparatus that performs control as if a key operation was performed.

  Currently, in Japan, the transition from television terrestrial analog broadcasting (hereinafter simply referred to as analog broadcasting) to terrestrial digital broadcasting (hereinafter simply referred to as digital broadcasting) is being promoted. Demand for television devices and car navigation devices compatible with digital broadcasting is increasing in preparation for the complete transition.

  In the current television broadcast, which is a transition period from analog broadcast to digital broadcast, analog broadcast and digital broadcast are performed in parallel. For this reason, many broadcast receivers compatible with digital broadcasts on the market can receive both digital broadcasts and analog broadcasts, and select which one to receive by switching the reception mode. By operating a channel selection key, a broadcast radio wave having a desired frequency is received and output to output means such as a display unit to view the broadcast.

  Such a broadcast receiving apparatus is disclosed, for example, in the following Patent Document 1 (Japanese Patent Laid-Open No. 2004-363910) as a broadcast receiving apparatus. In the broadcast receiving device disclosed in Patent Document 1, a first one-touch tuning key group and a second one-touch tuning key group are arranged on a remote controller, and terrestrial analog broadcasting is provided on the second one-touch tuning key group. Channel, and switching the mode to the first one-touch tuning key group, terrestrial digital broadcasting, BS digital broadcasting, and 110-degree CS digital broadcasting are allocated, and the first one-touch tuning key group and the second one-touch are selected. Broadcasting assignments can be exchanged with the tuning key group.

  By the way, with the complete transition of digital broadcasting, the current analog broadcasting is scheduled to end in July 2011. For this reason, with respect to the current broadcast receiving apparatus that supports both digital and analog broadcasting, the function after the end of analog broadcasting must be considered. In other words, since the analog broadcast cannot be received after completion of the analog broadcast, it is not necessary to use a switch key or a channel selection key used for a tuner switching operation.

  However, the switch key provided in the remote control unit and the tuner for receiving the analog broadcast still exist even after the broadcast ends, and this brings about the following adverse effects. In other words, if the analog broadcast reception mode is entered by mistaken operation, such as when the analog broadcast switch key is accidentally pressed, the tuner switches to analog broadcast, but the broadcast radio wave to be received is not transmitted. As a result, nothing is displayed on the screen, and noise may enter the sound, which may cause the user to feel uncomfortable.

  As an invention made in view of such an inconvenience, a “television broadcast receiver” is disclosed in the following Patent Document 2 (Japanese Patent Laid-Open No. 2006-222766). The invention disclosed in Patent Document 2 corresponds to analog broadcasting and digital broadcasting, and an access button for terrestrial analog television broadcasting is provided on at least one of the main body or a remote control device for remotely operating the main body. When the analog broadcast is finished and the analog broadcast cannot be received in the television broadcast receiver, the control for invalidating the operation for accessing the analog television by the access button is performed.

According to the invention disclosed in Patent Document 2, even if an analog broadcast access button is operated after analog broadcast ends, the operation is processed as invalid, and the analog broadcast reception mode is erroneously set. No screen is displayed or no noise is generated.
JP 2004-363910 A (FIG. 1) JP 2006-222766 A (FIG. 1)

  As described above, the terrestrial analog broadcasting will be terminated at the scheduled date and time. In the broadcast receiving device disclosed in Patent Document 1, operability after terrestrial analog broadcasting is not considered.

  On the other hand, in the invention disclosed in Patent Document 2, consideration is given to the case where terrestrial analog broadcasting cannot be received, but analog broadcasting ends as in the invention disclosed in Patent Document 2. If the operation is switched to analog broadcasting after the operation is disabled, not all users grasp the end of the analog broadcasting. There is a case where it is assumed that the main body is broken, and there is a problem that the user is misunderstood.

  In addition, if the remote control unit has separate channel selection keys for analog broadcasting and digital broadcasting, keys that cannot be used after analog broadcasting ends will always be placed on the remote control. Therefore, there is a problem that the waste of space is extremely large. Furthermore, even if the switching operation to the analog broadcasting is invalidated, there is a problem that the user is forced to switch the receiving mode to the digital broadcasting after all.

  Therefore, as a result of various studies to solve the above problems, the inventor of the present application has switched to reception of terrestrial analog broadcast so that a user who is not conscious of the end of analog broadcast will not be confused. When the operation is performed, the broadcast receiving device determines whether or not the current date and time has passed the end date of the analog broadcast. The present invention has been completed by conceiving that the above problem can be solved if the control is performed as if the key operation was performed.

  That is, an object of the present invention is to solve the above-described problems, and an object of the present invention is to provide a broadcast receiving apparatus that can eliminate inconveniences when attempting to receive an analog broadcast after the terrestrial analog broadcast ends.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is
A terrestrial analog broadcast receiving unit, a terrestrial digital broadcast receiving unit, a mode switching key for switching a reception mode between receiving a terrestrial digital broadcast and receiving a terrestrial analog broadcast, and a broadcast wave of a desired frequency An operation unit including a plurality of channel selection keys for performing channel selection, a channel selection table storing a plurality of frequencies corresponding to the channel selection key for each reception mode, and the terrestrial analog broadcast reception unit Alternatively, in a broadcast receiving apparatus comprising output means for outputting video or audio demodulated by a terrestrial digital broadcast receiving unit,
The broadcast receiving device further includes a timer unit,
When an operation to switch to the reception mode of the terrestrial analog broadcast is performed by the mode switching key, whether the timekeeping unit has acquired the date and time when the operation was performed and the end date of the terrestrial analog broadcast has elapsed The channel selection key operated with reference to the channel selection table so as to receive the broadcast wave of the terrestrial digital broadcast when it is determined that the end date of the terrestrial analog broadcast has passed. The frequency of terrestrial digital broadcasting corresponding to is selected and received by the terrestrial digital broadcast receiving unit.

The invention according to claim 2 of the present application is the broadcast receiving apparatus according to claim 1,
The operation unit includes a remote control unit for remotely operating the broadcast receiver main body, and the remote control unit includes a mode switching key and a plurality of channel selection keys for selecting a broadcast wave of a desired frequency. It is characterized by having.

  The invention according to claim 3 of the present application is the broadcast receiving device according to claim 1 or 2, wherein when the time measuring unit determines that the end date of analog terrestrial broadcasting has passed, the output means The terrestrial analog broadcasting is output to the end.

  In the invention according to claim 1, the broadcast receiving device switches the reception mode between the terrestrial analog broadcast receiving unit, the terrestrial digital broadcast receiving unit, the reception of the terrestrial digital broadcast and the reception of the terrestrial analog broadcast. An operation unit including a mode switching key for performing and a plurality of channel selection keys for selecting a broadcast wave of a desired frequency, and a plurality of frequencies corresponding to the channel selection key for each reception mode. When a switching operation to terrestrial analog broadcasting is performed, the time measuring unit obtains the current date and time and determines that the end date of terrestrial analog broadcasting has elapsed. Control is performed to receive broadcast radio waves of terrestrial digital broadcasting, and broadcast radio waves are received with reference to a tuning table corresponding to terrestrial digital broadcast.

  According to such a configuration, when the timing unit determines that the end date of the terrestrial analog broadcast has passed, the digital terrestrial broadcast is received even when the switching operation to the terrestrial analog broadcast is performed. Therefore, even if the mode switch key for switching to the analog broadcast mode is accidentally operated, the analog broadcast reception mode will not be entered, and no screen will be displayed or noise will not enter. There is no discomfort. Moreover, since it operates to automatically receive digital broadcasts, the user is not forced to switch to digital broadcasts, and convenience is improved. Further, it is possible to eliminate the keys that cannot be used and to effectively use the space.

  According to a second aspect of the present invention, in the broadcast receiving device according to the first aspect, the operation unit includes a remote control unit for remotely operating the main body of the broadcast receiving device, and the remote control unit includes a mode switching key and a remote control unit. A plurality of tuning keys are provided for selecting a broadcast wave having a desired frequency. By doing so, it is possible to provide a broadcast receiving apparatus capable of avoiding inconvenience after the end of analog broadcasting, regardless of whether the main body or the remote control unit is operated.

  In the invention according to claim 3, in the broadcast receiving device according to claim 1 or 2, when the time measuring unit determines that the end date of the terrestrial analog broadcast has passed, Outputs that analog broadcasting has ended. If it does in this way, it can notify a user that it switched to digital broadcasting automatically by completion | finish of analog broadcasting, and subsequent channel selection operation can be performed now according to digital broadcasting.

  Hereinafter, the best embodiment of the present invention will be described with reference to the drawings. However, the embodiment shown below exemplifies a broadcast receiving apparatus for embodying the technical idea of the present invention, and is not intended to identify the present invention as this broadcast receiving apparatus. Other embodiments within the scope of the claims are equally applicable.

  FIG. 1 is a block diagram showing a configuration of a broadcast receiving apparatus according to an embodiment of the present invention. Here, an in-vehicle broadcast receiving apparatus will be described as an example. The broadcast receiving apparatus 10 includes a map storage unit 16, a GPS receiving unit 17, a digital TV receiving unit 18, an analog TV receiving unit 19, an FM radio receiving unit 20, and an AM radio receiving unit 21, and includes a navigation function and a television broadcast receiving. This is a composite broadcast receiving apparatus having a function, a radio broadcast receiving function such as AM broadcast and FM broadcast, an audio video playback function for playing back music content and image content, and the like.

  Although not shown, the control unit 11 is a microprocessor having a RAM, a ROM, and a processor, and controls the operation of each unit by a control program stored in the ROM. The operation unit 12 is input means including numbers, alphabets, other function keys, selection keys, and the like, and includes a remote control unit 122, a main body side operation key 121 provided in the broadcast receiving apparatus main body, and the like. In the operation from the remote control unit 122, a signal such as an infrared signal is transmitted to the apparatus main body, and the remote control receiving unit 22 receives the signal and performs a predetermined operation.

  In addition, the broadcast receiving apparatus 10 includes a speaker 14, a disc reproducing unit 15, a remote control receiving unit 22, and a channel selection table 24. Voice guidance in the navigation function and voices of the digital TV receiver 18, analog TV receiver 19, FM radio receiver 20, and AM radio receiver 21 are output from the speaker 14. The disc playback unit 15 reads data from a disc on which music content or image content is recorded.

  The operation unit 12 is also provided with operation keys similar to those of the remote control unit 122 as main body side operation keys 121, and operations on the main body are operations performed by the remote control unit 122 using the main body side operation keys 121 provided on the main body. The same can be done. The display unit 5 is composed of a display panel such as a liquid crystal display, and constitutes output means together with the speaker 14. The received broadcast radio wave is demodulated into a video signal and an audio signal by a digital TV receiving unit 18 or an analog TV receiving unit 19 including a digital tuner or an analog tuner, and video and audio are output to an output means constituted by the display unit 5 and the speaker 14. Is output.

  Each function such as a navigation function can be switched by operating a function selection key 32 provided on the operation unit 12. When the navigation function is selected, the distance between the two points or the required time is the smallest with reference to the road data stored in the map storage unit 16 according to the position information of the departure place and the destination set by the operation unit 12 The optimum route is searched, and the optimum route is displayed on the display unit 13 together with the map. The GPS receiver 17 receives a GPS satellite signal, calculates a current position, and draws a current position mark on the map.

  The broadcast receiving apparatus 10 according to the present embodiment includes a timer unit 23 including a timer and an electronic timepiece. The timing unit 23 may be any unit that can detect the current date and time, but since it is for detecting the end date of analog broadcasting, it needs to be able to detect not only the date and time but also the year. The timer 23 acquires the current date and time when the remote control receiving unit 22 receives the operation signal from the remote control unit 122, and the obtained current date and time indicates the end date of analog broadcasting (July 24, 2011). It functions to determine whether or not it has elapsed.

  FIG. 2 is a front view showing the appearance of the remote control unit 122 constituting the operation unit 12. The remote control unit 122 is provided with an infrared transmitter 31, a function selection key 32, a determination key 33, a function key 34 such as a menu key, a mode switching key 35, and a channel selection key 36. By pressing these keys, a signal is transmitted from the infrared transmission unit 31, the remote control reception unit 22 of the main body receives the signal, and the control unit 11 performs a predetermined operation. Note that the remote control unit 122 shown in FIG. 2 exemplifies one using a channel selection key common to digital broadcasting and analog broadcasting.

  Switching of the reception mode between digital broadcasting and analog broadcasting is performed by a mode switching key 35. When the digital switching key 351 is operated, the control unit 11 activates the digital tuner of the digital TV receiving unit 18. Similarly, when the analog switching key 352 is operated, the analog TV receiving unit 19 activates the analog tuner. Since the mode switch key 35 is a control switch for changing from one reception mode to another reception mode, the tuner is switched when the digital switch key 351 is operated during viewing of an analog broadcast, but the analog switch key 352 is viewed during viewing of an analog broadcast. The operation is not affected even if is operated.

  After the reception mode switching operation is performed, the user selects and selects a channel selection key corresponding to the broadcasting station to be viewed from among the plurality of channel selection keys 36. Here, the broadcast receiving apparatus 10 includes a channel selection table 24, and selects a channel selection key and a frequency such as a frequency corresponding to the channel selection key “1” of the remote control unit and a frequency corresponding to the channel selection key “2”. Stored as associated data.

  When the remote control receiving unit 22 receives an operation signal from the remote control unit 122, the control unit 11 refers to the channel selection table 24 to obtain a frequency corresponding to the channel selection key, and receives a radio wave corresponding to this frequency by the tuner. This basic operation is common to digital broadcasting and analog broadcasting. The broadcast receiving apparatus 10 refers to the channel selection table for digital broadcasting when the digital tuner is activated, and when the analog tuner is activated. A channel selection table for analog broadcasting is referred to.

  In addition, when other functions such as route guidance (navigation) are activated, the function selection key 32 can be operated to change the function of route guidance, television, radio, etc., in order to switch to the television function. When the function selection key is operated, the television function is activated, and the television tuner of the broadcast that was viewed immediately before is activated. Although only the remote control unit 122 is shown in FIG. 2, as described above, the broadcast receiving apparatus main body 10 is also provided with a main body side operation key 121 as an operation means corresponding thereto.

  The overall operation flow will be described below using the flowchart shown in FIG. First, in step S1, processing is started when the remote control receiver 22 detects that the analog switch key 352 of the remote control unit 30 has been operated as a switching operation to the analog tuner. Next, the process proceeds to step S2, and the time measuring unit 23 acquires the current date and time, that is, the current date and time when the analog switching key 352 is operated. In step S3, the control unit 11 determines whether or not the current date is before July 24, 2011.

  Here, if it is determined that the current date and time is before July 24, 2011, the analog broadcast has not ended yet, so the process proceeds to step S6, and the analog tuner of the analog TV receiver 19 is activated. In step S7, radio waves are received with reference to the analog channel selection table, and the process ends.

  On the other hand, if it is determined in step S3 that the current date and time is not before July 24, 2011, that is, when the analog switch key 352 is operated, the analog broadcast end date has passed, the process proceeds to step S4. The control unit 11 activates the digital tuner of the digital TV receiving unit 18.

  Thereafter, when the remote control receiving unit 22 receives the operation of the channel selection key, the radio wave is received with reference to the digital channel selection table and displayed on the display unit 13 in the process of step S5. Here, the operation side, that is, the user operating the remote control unit feels as if the channel selection operation of the analog broadcast is performed, but the broadcast receiving device main body that has received the operation signal is switched to the digital tuner. Therefore, the channel selection table corresponding to the digital broadcast is referred to, and the channel selection operation is a channel selection operation in the digital broadcast.

  When the processing for automatically starting the digital tuner is performed as described above, the channel selection table 24 to be referred to, that is, the channel selection table 24 to be referred to, is a channel selection table for digital broadcasting. In analog broadcasting and digital broadcasting, since the broadcasting stations corresponding to the respective channel selection keys do not always match, a channel different from the channel intended by the user is displayed, which may be confusing to the user.

  Therefore, when the analog broadcast switch key is operated, a message such as “Analog broadcast has ended. Please operate the channel according to the digital broadcast” is displayed. It is preferable to notify the user to perform the channel operation. If it does in this way, it can know that the user switched from analog broadcasting to digital broadcasting automatically, and subsequent channel selection operation can be performed according to digital broadcasting.

  In the above description, the example in which the remote control unit 122 is used for the operation has been described.

  As described above, according to the present invention, even if the user performs an operation to switch to analog broadcasting for reasons such as not knowing that analog broadcasting has ended, in the broadcast receiving apparatus main body that receives the operation signal, Since the process of automatically starting the digital tuner is performed, it is possible to avoid the display of a screen on which nothing is displayed, and it is not necessary to impose the burden of the switching operation on the user.

FIG. 1 is a block diagram of the configuration of the broadcast receiving apparatus according to the first embodiment. FIG. 2 is a front view showing an external appearance of a remote control unit constituting the operation unit according to the first embodiment. FIG. 3 is a flowchart of the overall operation of the broadcast receiving apparatus according to the first embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Broadcast receiving apparatus 11 ... Control part 12 ... Operation part 13 ... Display part 14 ... Speaker 18 ... Digital TV receiving part 19 ... Analog TV receiving part 22 ... Remote control receiving unit 23 ··· Timing unit 24 ··· Channel selection table 122 · · Remote control unit 35 · · · Mode switching key 351 · · Digital switching key 352 · · Analog switching key 36 · · · Tuning key

Claims (3)

A terrestrial analog broadcast receiver, a terrestrial digital broadcast receiver, a mode switch key for switching the reception mode between receiving a terrestrial digital broadcast and receiving a terrestrial analog broadcast, and a broadcast wave of a desired frequency An operation unit including a plurality of channel selection keys for performing channel selection, a channel selection table storing a plurality of frequencies corresponding to the channel selection key for each reception mode, and the terrestrial analog broadcast reception unit Alternatively, in a broadcast receiving apparatus comprising output means for outputting video or audio demodulated by a terrestrial digital broadcast receiving unit,
The broadcast receiving device further includes a timer unit,
When an operation to switch to the reception mode of the terrestrial analog broadcasting is performed by the mode switching key, whether the timekeeping unit acquires the date and time when the operation was performed and whether the end date of the terrestrial analog broadcasting has elapsed The channel selection key operated with reference to the channel selection table so as to receive the broadcast wave of the terrestrial digital broadcast when it is determined that the end date of the terrestrial analog broadcast has passed. A terrestrial digital broadcast receiving frequency is selected and received by the terrestrial digital broadcast receiving unit.   The operation unit includes a remote control unit for remotely operating the broadcast receiver main body, and the remote control unit includes a mode switching key and a plurality of channel selection keys for selecting a broadcast wave of a desired frequency. The broadcast receiving apparatus according to claim 1, further comprising:   3. The output according to claim 1, wherein when the time measuring unit determines that the end date of the terrestrial analog broadcast has passed, an output to the effect that the terrestrial analog broadcast has ended is output to the output unit. The broadcast receiving apparatus described.

Images