CN102006437A - Broadcast signal conversion device - Google Patents
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- CN102006437A CN102006437A CN201010267988XA CN201010267988A CN102006437A CN 102006437 A CN102006437 A CN 102006437A CN 201010267988X A CN201010267988X A CN 201010267988XA CN 201010267988 A CN201010267988 A CN 201010267988A CN 102006437 A CN102006437 A CN 102006437A
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Abstract
The invention provides a broadcast signal conversion device, capable of reducing the consumed electric power of a self-luminescence type monitoring device and a loudspeaker even though without a broadcast receiving device with the consumed electric power reduction function. The broadcast signal conversion device comprises a switching part for switching on/off the signal of the transmission path for transmitting the signal from a signal input part to a signal output part. A connection part is connected with a moving body detection device for detecting the moving body. A moving body detection part receives the moving body detection signal from the moving body detection device. A switch control part controls the switching part when not receiving the moving body detection signal to cut off the signal in the transmission path. A time measurement part measures the passing time after the receiving state of the moving body detection signal is changed. When the passing time measured by the time measurement part exceeds the preset time, the switch control part controls the switching part to switch the on/off of the signal in the transmission path.
Description
Technical field
The present invention relates to a kind ofly import broadcast singal and it is carried out the broadcasting signal conversion device of conversion, particularly a kind of can be according to the broadcasting signal conversion device of the output of the broadcast singal after the Status Change conversion of looking the hearer of audiovisual broadcast situation.
Background technology
Current, as the broadcast receiver that receives broadcast wave image output and sound etc., television equipment and radio device etc. is widely used.Comprise the CS (CommunicationSatellite: digital broadcasting and BS (Broadcast Satellite: digital-to-analog broadcasting broadcasting satellite), the broadcasting of surface wave digital-to-analog etc. communication satellite) that utilizes satellite in the broadcasting.
Make as making decision about ground-wave television broadcast, will stop terrestrial analog broadcast in 2011 and turn to digital broadcasting.Digital broadcasting is since 2003, can broadcast the high definition program of high definition television (Hi-Vision) broadcasting etc.In addition, except that can watching the radio hookup broadcast program identical, also provide the two-way program of data broadcasting etc. with terrestrial analog broadcast.
Wherein, being used to reduce the collocation that consumes electric power in the large-scale broadcast receiver such as TV obtains advancing.For example, in order to reduce the consumption electric power of TV, detect near TV, whether to exist by infrared ray sensor and look the hearer, be judged as and automatically shut down TV power supply when not looking the hearer, more than practical application such as this power saving TV.
In the Xiang Guan patent documentation 1, disclose a kind of signal switching circuit therewith, this signal switching circuit can make RF under video cassette recorder is in holding state (Radio Frequency: radio frequency) the consumption electric power of adjuster is 0.This signal switching circuit has: the 1st switching circuit is connected conducting or disconnection between making antenna input and TV being exported; The 2nd switching circuit is connected conducting or disconnection between making antenna input and tuner being exported; And the 3rd switching circuit, be connected conducting or disconnection between making the adjuster input and TV being exported.
The 1st switching circuit is to make to connect closed circuit when not consuming electric power, and the 2nd switching circuit and the 3rd switching circuit are to make the connection dead circuit when not consuming electric power.Therefore, under the state that does not consume electric power, the RF signal that the antenna input is imported is not delivered to TV output damply.Thus, can make the consumption electric power of the RF adjuster under the holding state is 0.
[patent documentation 1] spy opens flat 11-308536 communique
But when broadcast receiver that the user had does not possess above-mentioned consumption electric power and reduces function, and this user uses under the situation of this function again, then needs to buy again broadcast receiver.Therefore, there is the problem of the equipment investment expense of purchase again that takes place.
In addition, in the shop of selling broadcast receiver, for example the TV sales field considers to put with operating state the situation of many broadcast receivers of display like that.Under this situation, even if when not looking the hearer, also conducting all the time of power supply usually.Therefore, though plan to seek to reduce to consume electric power, may not all have the electric power of consumption reduction function by each broadcast receiver.Even suppose to have this function, the salesman also must consume electric power separately to each broadcast receiver and set so suitable trouble.
Summary of the invention
The present invention carries out in view of the above problems, purpose is to provide a kind of broadcasting signal conversion device, this broadcasting signal conversion device is connected use between antenna and broadcast receiver, can reduce the emissive type monitor of broadcast receiver and the electric power that loud speaker consumes.
In order to reach above-mentioned purpose, broadcasting signal conversion device of the present invention has: signal input part, and it imports broadcast singal; The signal efferent, it exports broadcast singal; Switching part, it is arranged on from the transmission path of described signal input part to described signal efferent transmission broadcast singal, the conducting/disconnection of switching the broadcast singal in the described transmission path; Connecting portion, its connection carry out the moving body checkout gear that moving body detects; The moving body test section uses described connecting portion, receives expression is detected moving body by described moving body checkout gear moving body detection signal from described moving body checkout gear; And switch control portion, do not receive under the state of described moving body detection signal at described moving body test section, control described switching part, make that the broadcast singal in the described transmission path disconnects.
According to this structure, broadcasting signal conversion device of the present invention has: the signal efferent of the signal input part of input signal, output signal.In addition, as from signal input part to the parts that the transmission path of signal efferent transmission signals is provided with, have the switching part of the conducting/disconnection of switching the signal on the transmission path.In addition, the connecting portion that has the moving body checkout gear that connects the detection of carrying out moving body.In addition, has the moving body test section that receives the moving body detection signal from the moving body checkout gear.In addition, have switch control portion, under the state that does not receive the moving body detection signal, this switch control portion control switching part makes that the signal on the transmission path disconnects.Thus, can switch the accepting state of the broadcast receiver that is connected in the signal efferent according to the detected status of moving body.
In addition, in order to reach above-mentioned purpose, broadcasting signal conversion device of the present invention has: time measurement portion, and under the situation that the accepting state of the described moving body detection signal that is received by described moving body test section has taken place to change, the elapsed time after metering changes.Detected by described time measurement portion under the situation that the described elapsed time surpasses the value of predesignating, described switch control portion is controlled described switching part, makes it switch the conducting/disconnection of the broadcast singal in the described transmission path.
According to this structure, broadcasting signal conversion device of the present invention has time measurement portion, under the situation that the accepting state of moving body detection signal changes, and the elapsed time after this time measurement portion metering changes.In addition, detected by time measurement portion under the situation that the elapsed time exceeds schedule time, switch control portion control switching part makes it switch the conducting/disconnection of the signal on transmission path.Thus, under the situation of the detected state frequent variations of moving body, also can avoid taking place hand-off process unnecessary.
In addition, in order to reach above-mentioned purpose, in the broadcasting signal conversion device of the present invention, described signal input part is by antenna input RF (Radio Frequency) signal that is connected in described broadcasting signal conversion device, described signal efferent is to the broadcast receiver output RF signal that is connected in described broadcasting signal conversion device, and described switching part switches the conducting/disconnection of the RF signal in the described transmission path.
According to this structure, signal input part is from being connected in the antenna input rf signal of broadcasting signal conversion device.In addition, the signal efferent is to being connected in the broadcast receiver output RF signal of broadcasting signal conversion device.Have, switching part switches the conducting/disconnection of the RF signal on the transmission path again.
In addition, in order to reach above-mentioned purpose, broadcasting signal conversion device of the present invention has: demodulation section, carry out demodulation to the RF signal by described signal input part input, thereby generate image/voice signal; Modulation portion is modulated image/voice signal, thereby generates the RF signal; Transformation component carries out image/voice signal according to the input of described demodulation section and generates the decoding processing of image/voice data and generate image/voice signal and export the encoding process of described modulation portion to according to image/voice data; The conversion control part, do not receive under the state of described moving body detection signal at described moving body test section, control described transformation component, so that will be converted into image/voice data of predesignating according to the image/voice data that image/voice signal generated of described demodulation section input, and generate described image/voice signal and export described modulation portion to according to the image/voice data after the conversion.
According to this structure, broadcasting signal conversion device of the present invention has demodulation section, generates image/voice signal thereby the RF signal that this demodulation section is imported signal input part carries out demodulation.In addition, thus have image/voice signal modulated the modulation portion that generates the RF signal.Have again, have transformation component, this transformation component carry out image/voice signal according to demodulation section input generate image/voice data decoding processing, generate image/voice signal and export the encoding process of modulation portion according to image/voice data.In addition, has the conversion control part, under the state that does not receive the moving body detection signal, this conversion control part control change portion, make and export modulation portion to thereby generate described image/voice signal by the image/voice data that image/voice data is converted into regulation according to the image/voice data after the conversion.Thus, can change image/voice data according to the detected status of moving body to the broadcast receiver output that is connected in the signal efferent.
In addition, in order to reach above-mentioned purpose, in the broadcasting signal conversion device of the present invention, do not receive under the state of described moving body detection signal at described moving body test section, described conversion control part is controlled described transformation component, makes to be converted into black picture, asonant image/voice data according to the image/voice data that image/voice signal generated of described demodulation section input.
According to this structure, under the state that does not receive the moving body detection signal, described conversion control part control change portion makes image/voice data be converted into black picture, asonant image/voice data.Thus, can in the broadcast receiver that is connected in the signal efferent, show the black picture, and stop the output of sound.
In addition, in order to reach above-mentioned purpose, in the broadcasting signal conversion device of the present invention, image/voice signal that described transformation component is imported from described demodulation section is obtained MPEG (Moving PictureExperts Group: the motion picture expert group) TS of mode (Transport Stream: transport stream) grouping, do not receive under the state of described moving body detection signal at described moving body test section, described conversion control part is controlled described transformation component, makes the image/voice data that comprises in the described TS grouping be converted into black picture, asonant image/voice data.
According to this structure, transformation component is obtained the TS grouping of mpeg format according to the image/voice signal of demodulation section input.In addition, under the state that does not receive the moving body detection signal, conversion control part control change portion makes it that image/voice data that comprises in TS grouping is converted into black picture, asonant image/voice data.
In addition, in order to reach above-mentioned purpose, broadcasting signal conversion device of the present invention has: time measurement portion, under the situation that the accepting state of the described moving body detection signal that described moving body test section receives changes, elapsed time after its metering changes, detected by described time measurement portion under the situation that the described elapsed time surpassed the value of predesignating, described conversion control part switches the execution of the described conversion of being undertaken by described transformation component/do not carry out.
According to this structure, broadcasting signal conversion device of the present invention has time measurement portion, under the situation that the accepting state of the moving body detection signal that is received by the moving body test section changes, and the elapsed time after this time detecting portion metering changes.In addition, detecting by time measurement portion under the situation that the elapsed time surpassed the stipulated time, changing the execution that control part switches the conversion of being undertaken by transformation component/do not carry out.Thus, under the situation of the detected state frequent variations of moving body, also can avoid taking place the low conversion process of necessity.
(invention effect)
According to the present invention, do not looking near the broadcast receiver under the situation of moving bodys such as hearer, making the RF signal to broadcast receiver is no signal.Perhaps, signal of video signal and voice signal are transformed to black picture, voiceless sound, and offer broadcast receiver.Thus, the user need not buy again to have and consume the broadcast receiver that electric power reduces function, just can reduce consumption electric power.
In addition, according to the present invention, for example in the shop etc., can manage and reduce the electric power that many broadcast receivers consume together with the place of many broadcast receivers of operating state display.In addition, do not need that each broadcast receiver is consumed electric power separately and set, can improve convenience.
Description of drawings
Fig. 1 is the structured flowchart of the related broadcasting signal conversion device of expression the 1st execution mode of the present invention.
Fig. 2 is the handling process that the related switching controls of expression the 1st execution mode of the present invention is handled.
Fig. 3 is the structured flowchart of the related broadcasting signal conversion device of expression the 2nd execution mode of the present invention.
Fig. 4 is the schematic diagram of data before the related conversion of expression the 2nd execution mode of the present invention.
Fig. 5 is the schematic diagram of data after the related conversion of expression the 2nd execution mode of the present invention.
Fig. 6 is the handling process that the related data conversion of expression the 2nd execution mode of the present invention is handled.
Symbol description:
The 1-broadcasting signal conversion device
The 10-system controller
11-moving body test section
12-time measurement portion
The 13-switch control portion
14-conversion control part
20-squelch circuit (switching part)
31-RF input terminal (signal input part)
32-RF lead-out terminal (signal efferent)
33-external connection terminals (connecting portion)
41-tuner/OFDM demodulation section (demodulation section)
42-TS decoder/TS is multiplexing processing section (transformation component) again
43-PFDM/RF modulation portion (modulation portion)
The 44-blender
The 110-antenna
120-infrared ray sensor (moving body checkout gear)
141-Digital Television (broadcast receiver)
142-simulated television (broadcast receiver)
Embodiment
Below, with reference to accompanying drawing one embodiment of the present invention is described.In addition, only be an example at the execution mode of this expression, the present invention is not limited to the execution mode in this expression.
[execution mode 1]
The structure of＜1-1, broadcasting signal conversion device 〉
Fig. 1 is the internal structure block diagram of the related broadcasting signal conversion device 1 of expression the 1st execution mode of the present invention.Broadcasting signal conversion device 1 constitutes at least and comprises: system controller 10, squelch circuit (mute circuit) 20 (=switching parts), RF input terminal 31 (=signal input part), RF lead-out terminal 32 (=signal efferent) and external connection terminals 33 (=connecting portion).
In addition, as the function portion that realizes by the program of putting rules into practice on the arithmetic processing apparatus that has at system controller 10, system controller 10 has: moving body test section 11, time measurement portion 12 and switch control portion 13.In addition, will narrate in the back for the detailed content of each function portion.
RF input terminal 31 is by antenna 110 input rf signals.RF lead-out terminal 32 exports the RF signal of squelch circuit 20 outputs to external device (ED) for example distributor 130.Many Digital Television 141 (=broadcast receiver) and simulated television 142 (=broadcast receiver) are connected in distributor 130.Distributor 130 distributes the RF signal of the input line output of going forward side by side to these television equipments.
The structure of＜1-2, function portion 〉
At this, the function bilge construction that the related broadcasting signal conversion device 1 of the 1st execution mode of the present invention has is described.As shown in Figure 1, as the function portion that realizes by system controller 10 programs of putting rules into practice, the broadcasting signal conversion device 1 of present embodiment has: moving body test section 11, time measurement portion 12 and switch control portion 13.
Moving body test section 11 communicates via external connection terminals 33 and infrared ray sensor 120.And, receive the input of moving body detection signal by infrared ray sensor 120.In addition, by infrared detection under the situation of moving bodys such as TV audio/video person, from infrared ray sensor 120 output moving body detection signals.
During the reception control signal, carry out circuit and switch, make squelch circuit 20 stop the output of RF signal.Under this state, when becoming when not receiving control signal, carry out circuit and switch, make squelch circuit 20 begin the output of RF signal once more.
＜1-3, switching controls are handled 〉
At this, the switching controls that the flow chart that utilizes Fig. 2 is implemented the related broadcasting signal conversion device 1 of the 1st execution mode of the present invention is handled and is described.
Power supply at broadcasting signal conversion device 1 is carrying out under the state of driving, can regularly begin handling process shown in Figure 2 arbitrarily.After this processing beginning, in step S110, time measurement portion 12 carries out time measurement resetting and stop with timer (timer).In addition, timer for example can be the form that is made of physical circuit, also can be the form that is made of the application program of stipulating.
Next, in step S120, moving body test section 11 judges whether the state of the moving body detection signal of infrared ray sensor 120 inputs is the ON state.Be judged to be under the situation that is not the ON state, switch control portion 13 stops in step S125 squelch circuit 20 output control signals.Then, be transferred to step S110 once more.
At the state that is judged to be the moving body detection signal is not under the situation of ON state, in step S130, moving body test section 11 judge whether detect input signal in the past stipulated times state from the ON state variation to the OFF state.
Under situation about detecting from the ON state variation to the OFF state, time measurement portion 12 beginning is undertaken being transferred to step S140 after the metering in elapsed time by timer in step S135.Under situation about not detecting, directly be transferred to step S140 from the ON state variation to the OFF state.
Next, in step S140, time measurement portion 12 judges whether timer has passed through the stipulated time for example five minutes after picking up counting.Under situation about not exceeding schedule time, be transferred to step S120 once more.Under the situation that has surpassed the stipulated time, switch control portion 13 begins squelch circuit 20 output control signals in step S150.Then, be transferred to step S120 once more.
In addition, more than a series of processing until since for example the power supply of broadcasting signal conversion device 1 be stopped etc. and will continue to carry out till can not working.
According to present embodiment discussed above, with broadcast wave be digital broadcasting with or analog broadcasting with irrelevant, can look the hearer according near whether existence of broadcast receiver, carry out output control to the RF signal of broadcast receiver.In addition, look after the hearer through carrying out the switching of control signal after the stipulated time, therefore also can switch effectively looking under the situations such as the hearer frequently moves owing to detect.
In addition, according to present embodiment, at the broadcast receiver that is connected in broadcasting signal conversion device 1 is under the situation of digital output features such as Digital Television,, therefore can reduce the electric power that emissive type monitor and loud speaker consume owing to being thereby that the demonstration of no signal image and the output of sound are stopped by making the RF signal.
Next, with reference to accompanying drawing the 2nd execution mode of the present invention is described.In addition, the parts for identical with execution mode 1 invest identical symbol and omit its explanation.
[execution mode 2]
The structure of＜2-1, broadcasting signal conversion device 〉
Fig. 3 is the internal structure block diagram of the related broadcasting signal conversion device 1 of expression the 2nd execution mode of the present invention.The broadcasting signal conversion device 1 of present embodiment carries out the conversion process of digital broadcasting with the RF signal.Therefore, the squelch circuit 20 that replaces execution mode 1 constitutes and comprises: tuner/OFDM (orthogonal frequency division multiplex) demodulation section 41 (=demodulation section), TS (transport stream) decoding/TS be multiplexing processing section 42 (=transformation component), OFDM/RF modulation portion 43 (=modulation portion) and blender 44 again.
Tuner/OFDM demodulation section 41 carries out the high frequency of the RF signal of antenna 10 inputs to be handled and demodulation.The broadcast singal of a plurality of channels that obtain by demodulation offers TS decoder/TS multiplexing processing section 42 again.In example for example shown in Figure 3, the broadcast singal of 12 channels of ch1～ch12 is by demodulation.In addition, these channel tables can be by the physical channel of scan channel reception among being shown in UHF13ch～UHF62ch.In the present embodiment, the channel that the physical channel of maximum 12 channels can be registered as hypothesis is ch1～ch12.
TS decoder/TS multiplexing processing section 42 again carries out the decoding of TS grouping from the broadcast singal of each channel.And, from the TS grouping, detect the grouping that comprises mpeg data.In addition, TS decoder/TS again multiplexing processing section 42 carry out the multiplexing again of the switching of the data that contain in image/voice packets and TS according to indication from conversion control part 14 described later.
The TS of each channel after 43 inputs of OFDM/RF modulation portion are multiplexing again is modulated to identical frequency band once more.The modulation signal that 44 pairs of OFDM/RF modulation portion of blender 43 generate mixes, and generates 1 RF signal.
The structure of＜2-2, function portion 〉
At this, the structure of the function portion that the related broadcasting signal conversion device 1 of the 2nd execution mode of the present invention has is described.As shown in Figure 3, replace the switch control portion 13 of execution mode 1, the broadcasting signal conversion device 1 of present embodiment has conversion control part 14.
Receive control signal during, TS decoder/TS multiplexing processing section 42 again switches to no image, asonant data with the data portion of image/voice packets.Under this state, when becoming when not receiving control signal, TS decoder/TS multiplexing processing section 42 again carries out common TS decoder/TS multiplexing process again.
Perhaps, under the situation that does not receive control signal, TS decoder/TS multiplexing processing section 42 again can be to stop to handle, and directly exports the signal of tuner/OFDM demodulation section 41 inputs the form of OFDM/RF modulation portion 43 to.
＜2-3, conversion control and treatment 〉
Because all the other are identical with execution mode 1 except a part, therefore omit its detailed description.Be that with the difference of Fig. 2 of execution mode 1 13 pairs of squelch circuits 20 of switch control portion provide control signal in execution mode 1, but 14 pairs of tuners of conversion control part/OFDM demodulation section 41 provides control signal in the present embodiment.The implementation data conversion process is provided under the situation of control signal.Under the situation that control signal is not provided, do not implement data conversion and handle.In addition, the detailed content of handling for data conversion will be narrated in the back.
＜2-4, data structure 〉
At this, utilize the schematic diagram of Fig. 4 and Fig. 5, before the conversion that the data conversion that the related broadcasting signal conversion device of the 2nd execution mode of the present invention 1 is implemented is handled after data and the conversion structure of data describe.
Fig. 4 is the schematic diagram of the content of the TS grouping that data promptly generate from the RF signal that receives before the expression conversion.In addition, the touring counter of the numeral in the figure bracket.
Input to TS decoder/TS again among the TS of multiplexing processing section 42, image data, voice data and other additional datas carry out multiplexing with 188 byte unit that are called as the TS grouping.TS decoder/TS multiplexing processing section 42 again differentiates the kind that TS divides into groups by the PID (packet ID=packet identifier) in the header that divides into groups with reference to TS.
Exist in the TS grouping PAT etc. be used for like that records management information grouping, be used for the grouping of recording image data and voice data.The divide into groups PID of (below, be called " voice packets ") of the TS that TS that image data is used grouping (below, be called " image grouping ") and voice data are used is not a fixed value, but is recorded in PMT (Program Map Table: Program Map Table) indirectly.
In addition, the PID of PMT is recorded in PAT (Program Association Table: Program Association Table) indirectly.Therefore, for whole images groupings of discerning the TS that receives and whole pid informations of voice packets, need obtain PAT and PMT in advance.
This result is that the data structure of TS grouping becomes state as shown in Figure 5.Fig. 5 is the schematic diagram of the TS packet content after the expression conversion.In the example of Fig. 5, the image of Fig. 4 grouping Video1 (1) is deleted, replaces image grouping Video1N (1) that this Video1 (1) comprises the black picture data to be inserted into as the grouping of PID=0x0101.
Similarly, deleted for voice packets Audio1 (1), replace voice packets Audio1N (1) that this Audio1 (1) comprises the voiceless sound data to be inserted into as the grouping of PID=0x0111.
In addition, by TS decoder/TS again multiplexing processing section 42 detect under the situation of PID of image grouping or voice packets the difference of generation size of data when data are switched.Wherein, its size of data is less usually owing to black picture, asonant mpeg data, and therefore the setting of the remaining area when switching NULL divides into groups.
＜2-5, data conversion are handled 〉
At this, the data conversion that the flow chart that utilizes Fig. 6 is implemented the related broadcasting signal conversion device 1 of the 2nd execution mode of the present invention is handled and is described.
Under the state that is carrying out driving at the power supply of broadcasting signal conversion device 1,, begin handling process shown in Figure 6 from 14 couples of TS decoder/TS of conversion control part multiplexing processing section 42 moment of beginning to transmit control signal again.In addition, finish in the moment that stops to transmit control signal.
After this processing beginning, in step S210, conversion control part 14 indication TS decoder/TS are multiplexing processing section 42 again, makes it obtain the PAT that contains in the TS grouping.Then, whether successful according to obtaining of PAT in step S220, carry out branch process.
Under the situation that obtains failure of PAT, be transferred to step S210 once more.Under the situation of achieving success of PAT, in step S230, conversion control part 14 indication TS decoder/TS are multiplexing processing section 42 again, so that obtain the PMT that puts down in writing among the PAT.Then, whether successful according to obtaining of PMT in step S240, carry out branch process.
Under the situation that obtains failure of PMT, be transferred to step S230 once more.Under the situation of achieving success of PMT, in step S250, conversion control part 14 indication TS decoder/TS are multiplexing processing section 42 again, so as to obtain the PID that puts down in writing among the PMT, be image grouping PID and voice packets PID.
Next, in step S260, conversion control part 14 judges whether the PID of image grouping obtains successful.PID in the image grouping obtains under the situation of failure, is transferred to step S265 described later.Under the situation that the PID of image grouping achieves success, conversion control part 14 is indicated TS decoder/TS multiplexing processing section 42 again in step S270, makes the image of the PID that deletion is obtained divide into groups.
Next, in step S280, conversion control part 14 generates the image grouping that comprises the black picture data, and this image grouping has the identical PID of image grouping with above-mentioned deletion.Then, be inserted in the grouping of the image that generated among the TS after, be transferred to step S290.
Be back to step S260 and describe, the PID of image grouping obtains under the situation of failure in step S260, and conversion control part 14 judges whether the PID of voice packets obtains successful in step S265.Under the situation of failure, be transferred to step S290 described later.Under case of successful, conversion control part 14 is indicated TS decoder/TS multiplexing processing section 42 again in step S275, the voice packets of the PID that feasible deletion is obtained.
Next, in step S285, conversion control part 14 generates the voice packets that contains the voiceless sound data, and this voice packets has the PID identical with the voice packets of above-mentioned deletion.Then, be inserted in the voice packets that is generated among the TS after, be transferred to step S290.
Next, in step S290, conversion control part 14 is judged the renewal that whether detects the PAT that contains among the TS.Detecting under the more news of PAT, be transferred to step S210 once more.Do not detecting under the more news of PAT, conversion control part 14 is judged the renewal that whether detects the PMT that contains among the TS in step S300.
Detecting under the more news of PMT, be transferred to step S230 once more.Not detecting under the more news of PMT, be transferred to step S250, proceed the conversion process of image grouping or voice packets.
According to present embodiment discussed above, can look the hearer according near whether existence of broadcast receiver, making the image and the sound of broadcast receiver output is black picture, noiseless.Thus, for example in emissive type TVs such as plasm TV or organic EL etc., promptly there is the image of tone to compare, can reduces consumption electric power with showing common image.
In addition, according to present embodiment,, therefore can avoid the error message that " can't receive " wait or show the drawback of the blue picture of representing no signal etc. because no signal condition does not appear in the broadcast receiver that is connected in broadcasting signal conversion device 1.
[other execution modes]
More than, though with preferred embodiment and embodiment be that example describes the present invention, the present invention is not limited to above-mentioned execution mode, can implement with various distortion in its technological thought scope.
Therefore, the present invention can be applied in the following mode.
(A) in the above-described embodiment, the program by putting rules into practice on the arithmetic processing apparatus of microprocessor etc. realize each function portion relevant with broadcasting signal conversion device of the present invention, but each function portion can be realized also by a plurality of circuit.
(B) in the above-described embodiment, as the signal of broadcasting signal conversion device 1 input and output, be that example is illustrated with RF signal by wire transmission, but also can input and output other signal.For example, the wireless signal that can input and output contains image data and voice data.
(C) in the above-described embodiment, the parts as the conducting/disconnection of switching the output of RF signal are that example is illustrated with squelch circuit 20, but also can be switched by other parts.For example, can use by control signal and make the switching circuit of switch conduction/shutoff switch the output state of RF signal from system controller 10.
(D) in the above-described embodiment, as the person's that is used to detect the TV audio/video moving body checkout gear, be that example is illustrated with infrared ray sensor 120, look the hearer but also can use other device to detect.For example, can use illuminance transducer, pneumatic sensor, heat sensor etc.In addition, these sensor pack are contained in the housing identical with broadcasting signal conversion device 1.
(E) in above-mentioned execution mode 2, though the example that carries out data conversion in digital broadcasting in the RF signal is illustrated, also can be that analog broadcasting is transformed to black picture, asonant mode with image data that contains in the RF signal and voice data.Under this situation, be provided with ntsc decoder and NTSC encoder in the back level of RF input terminal 31.And, by ntsc decoder the RF signal of input is decoded, make the signal level of the image/voice signal of generation be reduced to 0.And then the image/voice signal after by the NTSC encoder level being reduced is encoded, and exports from the RF lead-out terminal then.Thus, the broadcast receiver in the output destination is under the situation of analogue means such as simulated television, can avoid taking place the white noise (whitenoise) that caused by no signal etc.
(F) in the above-described embodiment, be not particularly limited, can use for example CRT, LCD TV, plasm TV, organic EL TV etc. for the apparatus structure of Digital Television 141 that is connected in broadcasting signal conversion device 1 and simulated television 142.In addition, also the broadcast receiver beyond the television equipment can be connected in broadcasting signal conversion device 1.For example, can be the mode that connects video cassette recorder or HDD recorder etc.
(G) in the above-described embodiment, do not detecting under the situation of looking moving bodys such as hearer, TS decoder/TS multiplexing processing section 42 again carries out image data with the black picture and is contained in processing in the image grouping, but also other image data can be included in the image grouping.For example, can generate text strings images such as " receptions of having gone off the air " and be contained in the image grouping.
Claims (7)
1. broadcasting signal conversion device is characterized in that having:
Signal input part, it imports broadcast singal;
The signal efferent, it exports broadcast singal;
Switching part, it is arranged on from the transmission path of described signal input part to described signal efferent transmission broadcast singal, the conducting/disconnection of switching the broadcast singal in the described transmission path;
Connecting portion, its connection carry out the moving body checkout gear that moving body detects;
The moving body test section, it utilizes described connecting portion, receives expression is detected moving body by described moving body checkout gear moving body detection signal from described moving body checkout gear; And
Switch control portion does not receive under the state of described moving body detection signal at described moving body test section, controls described switching part, makes that the broadcast singal in the described transmission path disconnects.
2. broadcasting signal conversion device according to claim 1 is characterized in that,
Have time measurement portion, this time measurement portion has taken place under the situation of variation in the accepting state of the described moving body detection signal that is received by described moving body test section, the elapsed time after metering changes,
Detected by described time measurement portion under the situation that the described elapsed time surpassed the value of predesignating, described switch control portion is controlled described switching part, to switch the conducting/disconnection of the broadcast singal in the described transmission path.
3. broadcasting signal conversion device according to claim 1 is characterized in that,
Described signal input part is by the antenna input rf signal that is connected in described broadcasting signal conversion device,
Described signal efferent is exported the RF signal to the broadcast receiver that is connected in described broadcasting signal conversion device,
Described switching part switches the conducting/disconnection of the RF signal in the described transmission path.
4. broadcasting signal conversion device according to claim 1 is characterized in that having:
Demodulation section, it carries out demodulation to the RF signal by described signal input part input, thereby generates image/voice signal;
Modulation portion, it is modulated image/voice signal, thereby generates the RF signal;
Transformation component, it carries out generating the decoding processing of image/voice data and the encoding process that generates image/voice signal and export described modulation portion to according to image/voice data according to the image/voice signal of described demodulation section input; And
The conversion control part, it does not receive under the state of described moving body detection signal at described moving body test section, control described transformation component, so that will be transformed to image/voice data of predesignating according to the image/voice data that image/voice signal generated of described demodulation section input, and generate described image/voice signal and export described modulation portion to according to the image/voice data after the conversion.
5. broadcasting signal conversion device according to claim 4 is characterized in that,
Do not receive under the state of described moving body detection signal at described moving body test section, described conversion control part is controlled described transformation component, makes to be transformed to black picture, asonant image/voice data according to the image/voice data that image/voice signal generated of described demodulation section input.
6. broadcasting signal conversion device according to claim 4 is characterized in that,
Image/voice signal that described transformation component is imported from described demodulation section is obtained the TS grouping of MPEG mode,
Do not receive under the state of described moving body detection signal at described moving body test section, described conversion control part is controlled described transformation component, makes the image/voice data that comprises in the described TS grouping be transformed to black picture, asonant image/voice data.
7. broadcasting signal conversion device according to claim 4 is characterized in that,
Have time measurement portion, this time measurement portion under the situation that the accepting state of the described moving body detection signal that described moving body test section receives changes, the elapsed time after metering changes,
Detected by described time measurement portion under the situation that the described elapsed time surpassed the value of predesignating, described conversion control part switches the execution of the described conversion of being undertaken by described transformation component/do not carry out.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009198002A JP2011049946A (en) | 2009-08-28 | 2009-08-28 | Broadcast signal converting apparatus |
| JP2009-198002 | 2009-08-28 |
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| CN102006437A true CN102006437A (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010267988XA Pending CN102006437A (en) | 2009-08-28 | 2010-08-27 | Broadcast signal conversion device |
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| JP (1) | JP2011049946A (en) |
| CN (1) | CN102006437A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002109680A (en) * | 2000-09-29 | 2002-04-12 | Japan Radio Co Ltd | Wireless guide system |
| CN1617058A (en) * | 2004-10-08 | 2005-05-18 | 于家新 | Intelligent controller and electric appliance with intelligent controller and control method |
| JP2006050345A (en) * | 2004-08-05 | 2006-02-16 | Sharp Corp | Master-slave system av apparatus, master unit, slave unit, and slave unit housing apparatus |
| CN201084378Y (en) * | 2007-10-11 | 2008-07-09 | 北京北阳电子技术有限公司 | An advertisement machine and network advertisement machine system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6889382B1 (en) * | 1999-07-27 | 2005-05-03 | Mediaone Group, Inc. | Remote TV control system |
| US20040238742A1 (en) * | 2003-05-29 | 2004-12-02 | Mahvi Ali Pascal | Infrared sensor unit for controlling operation of electrically powered appliances |
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- 2009-08-28 JP JP2009198002A patent/JP2011049946A/en active Pending
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- 2010-08-27 CN CN201010267988XA patent/CN102006437A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002109680A (en) * | 2000-09-29 | 2002-04-12 | Japan Radio Co Ltd | Wireless guide system |
| JP2006050345A (en) * | 2004-08-05 | 2006-02-16 | Sharp Corp | Master-slave system av apparatus, master unit, slave unit, and slave unit housing apparatus |
| CN1617058A (en) * | 2004-10-08 | 2005-05-18 | 于家新 | Intelligent controller and electric appliance with intelligent controller and control method |
| CN201084378Y (en) * | 2007-10-11 | 2008-07-09 | 北京北阳电子技术有限公司 | An advertisement machine and network advertisement machine system |
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| JP2011049946A (en) | 2011-03-10 |
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Application publication date: 20110406 |