CN105099590B - The rating switching method of in-car TV TV receiving system and radio broadcasting signal and wireless network signal - Google Patents
The rating switching method of in-car TV TV receiving system and radio broadcasting signal and wireless network signal Download PDFInfo
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Abstract
The object of the present invention is to provide a kind of allowing users to continuously rating HD video information and reduce the rating switching method of the radio broadcasting signal of wireless network cost of use and wireless network signal.In the case that the channel radio broadcasting signal of the TV station after the network HD video for searching out a certain TV station and in reception improves, the first search process is carried out；In the case where the network HD video of the rating TV station, the second search process is carried out.Thus, can reduce in vehicle moving process because radio broadcasting signal is bad and cause cannot the continuous same TV station of rating wireless high-definition video a possibility that, while reducing the expense generated because of the network HD video of the rating TV station is carried out using wireless network.
Description
Technical field
The present invention relates to the rating switching method of a kind of radio broadcasting signal and wireless network signal, in particular to a kind of vehicle
The rating switching method of radio broadcasting signal and wireless network signal in driving process.
Background technique
In the past, in vehicle travel process, in-car TV TV receiving system is using radio broadcasting signal come watch broadcast high definition
Video information cannot be guaranteed that the broadcast of the continuously a certain channel of a certain TV station of rating is high in the radio broadcasting signal received
In the case where clear video information, while searching for other channels of the same TV station, the rating TV station is automatically switched to
The lower broadcast SD video information of picture quality.But this can bring the influence on appreciation effect to user.
Also, the area very weak in radio broadcasting signal, due to being difficult to that radio broadcasting signal is correctly received, will lead to makes
User can not carry out continuous rating.A kind of radio broadcasting signal and wireless network signal are proposed in referenced patent document 1
Rating switching method.When the signal strength of the radio broadcasting signal received is not sufficient to ensure that continuous rating, stop receiving
The radio broadcasting signal simultaneously starts to connect wireless network, and the identical network HD video of rating content is carried out using wireless network
Information.But connecting wireless network and finding corresponding network HD video information on network can take some time,
User can not carry out rating during this, and if always utilizing wireless network, according to can generate phase using data traffic
When an expense.
Existing patent document
Patent document 1: Japanese Patent Laid-Open 2009-74881 bulletin
Summary of the invention
The object of the present invention is to provide a kind of allowing users to continuously rating HD video information and reduce wireless
The radio broadcasting signal of Internet utilization fee and the rating switching method of wireless network signal.
To achieve the goals above, in-car TV TV receiving system according to the present invention includes: wireless broadcast receiving device,
It includes multiple high-frequency reception accesses, demodulation integral unit and decoding unit, and the wireless broadcast receiving device receives wireless
Broadcast singal；Wireless communication device receives wireless network signal；Control device monitors the letter of the radio broadcasting signal
Number intensity, and and threshold value comparison, according to the comparison result by certain in the radio broadcasting signal or the wireless network signal
One video information is selected as output video information；And display device, described in output is selected as the control device
Export video information.
To achieve the goals above, the rating switching side of radio broadcasting signal and wireless network signal according to the present invention
Method includes: to receive the wireless broadcast reception step of radio broadcasting signal；Receive the wireless communication step of wireless network signal；Monitoring
The signal strength of the radio broadcasting signal and and threshold value comparison, according to the comparison result, by the radio broadcasting signal or
The video information of some in the wireless network signal is selected as the rate-determining steps of output video information；And output is by institute
State the display step of the output video information of rate-determining steps selection.
Compared to the prior art, the present invention can obtain following technical effect: certain TV station a certain channel it is wireless wide
When broadcasting signal to be deteriorated to a certain extent, but continuous rating can also be carried out to HD video information using the radio broadcasting signal,
The network HD video information of the TV station is just received by wireless network, to ensure that user is able to carry out continuous receipts
Depending on.Meanwhile by the way that n high-frequency reception access is divided into receiving unit and search unit, it is wireless that this is received with receiving unit on one side
Broadcast singal searches for all channels of same TV station with search unit on one side, when the radio broadcasting signal for having any above-mentioned channel
When can guarantee to carry out continuous rating to broadcast HD video information, received just then using the radio broadcasting signal of the channel
Depending on broadcasting HD video information, to reduce the cost of use of wireless network.
Detailed description of the invention
Fig. 1 is the rating switching method shown using radio broadcasting signal according to the present invention and wireless network signal
The structural schematic diagram of the in-car TV TV receiving system of one embodiment.
Fig. 2 is one of the rating switching method based on radio broadcasting signal according to the present invention and wireless network signal
The threshold value schematic diagram of embodiment set according to the signal strength of radio broadcasting signal.
Fig. 3 is one of rating switching method for showing radio broadcasting signal and wireless network signal according to the present invention
The flow chart of embodiment.
Fig. 4 is first searching in the rating switching method of radio broadcasting signal and wireless network signal according to the present invention
The flow chart of one embodiment of rope processing.
Fig. 5 is second searching in the rating switching method of radio broadcasting signal and wireless network signal according to the present invention
The flow chart of one embodiment of rope processing.
Specific embodiment
In the following, in conjunction with accompanying drawings and embodiments to the receipts of the radio broadcasting signal arrived and wireless network signal involved in the present invention
It is described in detail depending on switching method.But technical scope of the invention is not limited to these embodiments, but be related to weighing
Documented invention and its equivalent in sharp claim.In addition, in the description of the drawings, being accompanied by same or considerable part same
Symbol, and the repetitive description thereof will be omitted.
Fig. 1 is the rating switching method shown using radio broadcasting signal according to the present invention and wireless network signal
The structural schematic diagram of the in-car TV TV receiving system of one embodiment.User can use in-car TV watching device 1 in vehicle
Radio broadcasting signal and/or wireless network signal are received in moving process and watch corresponding video information (that is, broadcast high definition view
Frequency information, network HD video information, broadcast SD video information).In addition, heretofore described " high definition " and " SD " is simultaneously
It is not configured to the clarity of video information is limited to a certain or certain specific clarity, and is interpreted as relative to " SD "
Video information for, the video information of " high definition " has higher clarity.Also, in the present embodiment, being set in a frequency
Under road, the broadcast HD video information and broadcast SD view of same content are brought while broadcasted using the different frequency in the channel
Frequency information.In addition, in the present embodiment, also setting the letter of the network wireless signal received for in-car TV watching device 1
Substantially with the movement for the vehicle for being equipped with in-car TV watching device 1 excessive change does not occur for number intensity, i.e., moves in vehicle
In-car TV watching device 1 can receive wireless network signal always and continuously play corresponding network HD video during dynamic
Information.In addition, the radio broadcasting signal for being meant that receive a certain channel of " rating " above and the nothing of broadcasting and the channel
The corresponding broadcast HD video information of line broadcast singal or broadcast SD video information, or receive certain wireless network signal and broadcast
Put network HD video information corresponding with the wireless network signal.
In the present embodiment, in-car TV TV receiving system 1 includes wireless broadcast receiving device 2, wireless communication device 3, control
Device 4, display device 5, operating device 6 and storage device 7 processed.Wireless broadcast receiving device 2 is wireless for receiving and/or searching for
Broadcast singal, including high-frequency reception access 21,22,23,24, demodulation integral unit 25, the first decoding unit 26 and the second decoding
Unit 27.
As shown in Figure 1,1 high-frequency reception access includes the tuner that 1 antenna and one follow the antenna, and antenna
211,221,231,241 characteristic is identical, and the characteristic of tuner 212,222,232,242 is identical.High-frequency reception access 21,22,
23,24 the radio broadcasting signal of a certain channel is received respectively and the radio broadcasting signal is transmitted to decoding integral unit 25.And
And control device 4 is connect with tuner 212,222,232,242 respectively, and thereby control high-frequency reception access 21,22,23,
24, the broadcast wireless signal for the channel for specifying its reception by control device 4.
During receiving and/or searching for radio broadcasting signal, can allow wireless broadcast receiving device 2 includes one
Divide the receiving unit of high-frequency reception access composition to receive the radio broadcasting signal of a certain channel of a certain TV station, meanwhile, it allows
It include that the search unit that constitutes of another part high-frequency reception access scans for, wherein search mentioned here refers to searching
Cable elements receive the radio broadcasting signal of all channels of the TV station on television broadcast band one by one.The frequency to be searched for
Road is the instruction according to control device and is designated.
Demodulation integral unit 25 demodulates the radio broadcasting signal from each high-frequency reception access respectively, obtains
Corresponding demodulated signal.Also, control device 4 makes demodulation integral unit 25 according to certain Integration Mode, will be from reception
Each demodulated signal of the high-frequency reception access of unit is integrated into demodulated received signal, and will be from the height of search unit
Each demodulated signal of frequency receiving path, which is integrated into, has demodulated search signal.As an example of Integration Mode, such as can
To use maximum-ratio combing.In addition, as being described in detail hereinafter, if any high-frequency reception access is not constituted receiving unit, and by institute
Having high-frequency reception access to divide equally (quantity of high-frequency reception access is even number) or approximation, respectively (quantity of high-frequency reception access is odd
Number) two search units: the first search unit and the second search unit are constituted, then by from the height of the first search unit
Each demodulated signal of frequency receiving path, which is integrated into, has demodulated the first search signal, and will be from the second search unit
Each demodulated signal of high-frequency reception access, which is integrated into, has demodulated the second search signal.Wherein, approximate respectively to refer to that first searches
The quantity for the high-frequency reception access for including in cable elements than the high-frequency reception access for including in the second search unit quantity more than or
It is one few.
Demodulation integral unit 25 from demodulated received signal and has demodulated search signal, or has believed from the first search has been demodulated
Number and demodulated and extract corresponding TS (Transport Stream) signal in the second search signal out, and by corresponding TS signal point
Supplementary biography is sent to the first decoding unit 26 and the second decoding unit 27.Integral unit 25 is demodulated also by the letter with demodulated received signal
Number intensity and the related information of signal strength for having demodulated search signal, or with the signal strength that has demodulated the first search signal
The relevant information of signal strength (such as MER (Modulation Error Rate)) for having demodulated the second search signal is sent
To control device 4, the signal strength of radio broadcasting signal is obtained for control device 4.
First decoding unit 26 is identical with the characteristic of the second decoding unit 27, may be used to from demodulation integration
The TS signal of unit 25 carries out identical decoding process, to obtain corresponding video information (broadcast HD video information, broadcast
SD video information) and it is sent to control device 4.Because being obtained by the first decoding unit 26 and/or the second decoding unit 27
Video information in include can determine whether information (such as logo of TV station) of the video information from which TV station, so
It can know which TV station the channel for receiving or searching corresponds in conjunction with control device.
Wireless communication device 3 receives wireless network signal using wireless communication technique, and from the wireless network received
Corresponding network HD video information is obtained in signal, sends control device 4 for the network video information.Meanwhile according to control
The instruction of device 4 processed, wireless communication device are also used to find the wireless network high definition video information of particular station.As upper
State an example of wireless communication technique, such as 3rd generation mobile communication technology (3G).
Control device 4 is the equipment for carrying out information processing.As shown in Figure 1, control device 4 and tuner 212,222,
232,242, demodulation integral unit 25, the first decoding unit 26, the second decoding unit 27, wireless communication device 2, display device 5,
Operating device 6, storage device 7 are separately connected.
Display device 5 is used to show the video information from certain TV station from control device 4.According to aftermentioned wireless
The rating switching method of broadcast singal and wireless network signal, control device 4 will be selected by the first decoding unit 26 or the second solution
Code unit 27 decodes the broadcast HD video information of a certain channel of certain obtained TV station, broadcast SD video information, and
A video information in the network HD video information of the TV station obtained by wireless communication device 3, which is used as, is sent to control
Device 4 is come the video information that is shown.
Operating device 6 is used to carry out information input to control device 4, such as can be keyboard.It can also be with display device 5
Become one as an input-output apparatus, such as can be touch screen.
Storage device 7 is for procedure, data used in control device 4.
Fig. 2 is one of the rating switching method based on radio broadcasting signal according to the present invention and wireless network signal
The threshold value schematic diagram of embodiment set according to the signal strength of radio broadcasting signal.The longitudinal axis of Fig. 2 indicates signal strength, horizontal axis
Indicate the time, the curve in Fig. 2 schematically shows the signal strength of a certain signal changed over time, strong with actual signal
The variation tendency of degree is unrelated.In the present embodiment, because may be constructed the maximum of the high-frequency reception access an of receiving unit
Number is four, so setting five threshold values relevant to the signal strength of the received radio broadcasting signal of receiving unit is utilized: threshold
Value t1, threshold value t2, threshold value t3, threshold value t4With threshold value t5.Also, this five threshold values are determined in advance, indicate signal strength
Numerical value, and meet threshold value t1> threshold value t2> threshold value t3> threshold value t4> threshold value t5。
When certain TV station for using one receiving unit of whole four high-frequency reception accesses 21,22,23,24 compositions to receive
A certain channel radio broadcasting signal signal strength be greater than or equal to threshold value t1When, it is meant that by any one high-frequency reception
The receiving unit that access is constituted can guarantee that continuously rating is corresponding with the channel and broadcast HD video information.Cause
This, at this moment control device 4 will control high-frequency reception access 21,22,23,24, constitute any one high-frequency reception access
One receiving unit receives the radio broadcasting signal of the channel, and its excess-three high-frequency reception access is made to constitute a search singly
Member searches for all channels of the TV station.
When certain TV station for using one receiving unit of whole four high-frequency reception accesses 21,22,23,24 compositions to receive
A certain channel radio broadcasting signal signal strength be greater than or equal to threshold value t2And it is less than threshold value t1When, it is meant that by any
The receiving unit that two high-frequency reception accesses are constituted can guarantee that continuously rating is corresponding with the channel and broadcast high definition
Video information.Therefore, at this moment control device 4 will control high-frequency reception access 21,22,23,24, connect any two of them high frequency
It receives access and constitutes a receiving unit to receive the radio broadcasting signal of the channel, and constitute other two high-frequency reception access
One search unit searches for all channels of the TV station.
When certain TV station for using one receiving unit of whole four high-frequency reception accesses 21,22,23,24 compositions to receive
A certain channel radio broadcasting signal signal strength be greater than or equal to threshold value t3And it is less than threshold value t2When, it is meant that by any
The receiving unit that three high-frequency reception accesses are constituted can guarantee that continuously rating is corresponding with the channel and broadcast high definition
Video information.Therefore, at this moment control device 4 will control high-frequency reception access 21,22,23,24, connect three high frequencies of any of them
It receives access and constitutes a receiving unit to receive the radio broadcasting signal of the channel, and constitute remaining high-frequency reception access
One search unit searches for all channels of the TV station.
When certain TV station for using one receiving unit of whole four high-frequency reception accesses 21,22,23,24 compositions to receive
A certain channel radio broadcasting signal signal strength be greater than or equal to threshold value t4And it is less than threshold value t3When, it is meant that it must make
Guarantee to broadcast HD video to corresponding with the channel with a receiving unit being made of whole four high-frequency reception accesses
Information carries out continuous rating, in other words, if the signal strength of the radio broadcasting signal of the channel, which continues to be deteriorated, (is less than threshold
Value t4) if, even if using by all receiving units constituting of four high-frequency reception accesses may also not can guarantee to
The channel broadcasts HD video information accordingly and carries out continuous rating.Therefore, at this moment control device 4 leads to high-frequency reception is controlled
Road 21,22,23,24 makes whole four high-frequency reception accesses constitute a receiving units to receive the radio broadcasting letter of the channel
Number.Also, in order to can not also see at once and the broadcast height when the continuously broadcast HD video information of the rating channel
The identical network HD video information of content of clear video information, control device 4 also utilizes wireless network communication apparatus 3, in example
The network HD video information there are the TV station is looked for whether on such as internet network, and is finding the network HD video
In the case where information, the corresponding wireless network signal of the network HD video information is carried out using wireless network communication apparatus 3
It receives (but not playing the network HD video information, still play above-mentioned broadcast HD video information).
When certain TV station for using one receiving unit of whole four high-frequency reception accesses 21,22,23,24 compositions to receive
A certain channel radio broadcasting signal signal strength be greater than or equal to threshold value t5And it is less than threshold value t4When, it is meant that even if making
It may also not can guarantee with by the receiving unit that all four high-frequency reception accesses are constituted to the radio broadcasting with the channel
The corresponding broadcast HD video information of signal carries out continuous rating.Therefore, stop playing the broadcast HD video information (but still
So receive the radio broadcasting signal of the channel), then play the network HD video information of the TV station.Also, due to rating
Network HD video can generate wireless network cost of use, so when wireless network cost of use is more than preset value (such as can
To be judged according to following manner: the network traffic data that this month uses is more than defined data traffic, or of that month network
Exceeded schedule time using the time), stop receiving wireless network signal and transfers to play the broadcast SD video information of the channel.
When certain TV station for using one receiving unit of whole four high-frequency reception accesses 21,22,23,24 compositions to receive
A certain channel radio broadcasting signal signal strength be less than threshold value t5When, it is meant that even if being connect using by all four high frequencies
Receiving the receiving unit that access is constituted may also not can guarantee to broadcast SD corresponding with the radio broadcasting signal of the channel
Video information carries out continuous rating.That is, at this moment, if it is desired to the video information for continuing the rating TV station, it can only
Using wireless network communication apparatus 3 come the high-definition network video information of the rating TV station.
Fig. 3 is one of rating switching method for showing radio broadcasting signal and wireless network signal according to the present invention
The flow chart of embodiment.In the present embodiment, at the beginning, user wants to carry out the TV station of rating by the selection of operating device 6,
In-car TV receives system 1 using the receiving unit R being made of whole four high-frequency reception accesses 21,22,23,24 as a result,4It connects
It receives the radio broadcasting signal of a certain channel A of the TV station and plays broadcast high definition corresponding with the radio broadcasting signal of channel A
Video information (step S301).Channel A and the corresponding relationship of the TV station are known, and this corresponding relationship is deposited in advance
It is stored in storage device 7.At this point, the channel A of the TV station receives channel as current.
While receiving the current radio broadcasting signal for receiving channel, to the wireless wide of the current reception channel received
It broadcasts signal and is monitored (step S302).Here, monitoring refers to is spaced at intervals of set time, obtains as the wireless of monitoring object
The signal strength of broadcast singal.Specific time interval for example can be 1 second.
The movement for receiving the vehicle of system 1 with in-car TV is equipped with, the current radio broadcasting signal for receiving channel
Signal strength can also change.As step S303, when the signal of the radio broadcasting signal of the current reception channel monitored
Intensity is greater than or equal to the threshold value t3When, otherwise return step S302 enters step S304.
As step S304, in-car TV receives the control device 4 in system 1 using wireless network communication apparatus 3 in net
The network HD video information there are the TV station is looked for whether on network.The broadcast of the network HD video information and the TV station
The content of HD video information is identical.When searching out the network HD video information, start to receive corresponding to network high definition view
Otherwise the wireless network signal (step S305) of frequency information enters step S315.In addition, for the network HD video information
Can be synchronous with the broadcast HD video information of the TV station, at the synchronization that can be taken a certain time in step S305
Reason.
After realizing that the network HD video information is synchronous with the broadcast HD video information of the TV station, to monitoring
To the signal strength of radio broadcasting signal of current reception channel whether be less than threshold value t4Judged (step S306).If
Above-mentioned judging result is broadcast that is yes, then keeping the radio broadcasting signal for receiving current reception channel but stop playing the TV station
HD video information is switched to and plays the network HD video information (step S307) and enter step S309 (at the second search
Reason).Otherwise, stop receiving above-mentioned wireless network signal and enter step S308 (the first search process).At the first search
Reason and the second search process, will be described in detail in conjunction with Fig. 4 and Fig. 5 respectively below.
Utilize receiving unit R4Radio broadcasting signal to a certain channel B for obtaining the TV station by the second search process
It is received, at this point, the channel B of the TV station receives channel as current, monitors the current radio broadcasting signal for receiving channel
Signal strength (step S310).
Whether the signal strength of the radio broadcasting signal of the current reception channel monitored in step s310 is greater than or
Equal to threshold value t4Judged (step S311).If the judging result of step S311 be it is yes, stop receiving above-mentioned wireless
Network signal simultaneously stops corresponding broadcasting network HD video information, is switched to the broadcast HD video information for playing the TV station
(step S313) and enter step S308.At this point, the broadcast HD video information of the TV station corresponds to the broadcast radio of channel B
Signal.If the judging result of step S311 be it is no, further judge wireless network cost of use whether be more than preset value (walk
Rapid S312).
If the judging result of step S312 be it is yes, further judge the current reception monitored in step s310
Whether the signal strength of the radio broadcasting signal of channel is greater than or equal to threshold value t5(step S314).If the judgement of step S314
As a result be it is yes, then stop receiving above-mentioned wireless network signal and stop playing corresponding network HD video information, enter step
S315, otherwise, return step S309.On the other hand, if the judging result of step S312 is no, return step S309.
As step S315, start the broadcast SD video information for playing the TV station.Also, judgement monitors current
Whether the signal strength for receiving the radio broadcasting signal of channel is greater than or equal to the threshold value t4(step S316).If step
The judging result of S316 is yes, then stopping playing the broadcast SD video information of the TV station, is switched to and plays the TV station
Broadcast HD video information (step S313) and enter step S308, if the judging result of step S316 be it is no, enter
Step S317.In step S317, if it is desired to start to play the network HD video information of the TV station, then return step
S304, otherwise, return step S316.
Fig. 4 is first searching in the rating switching method of radio broadcasting signal and wireless network signal according to the present invention
The flow chart of one embodiment of rope processing.Judging result is no or starts after carrying out step S313 in step S306, is carried out
First search process.
Firstly, obtaining the signal strength (step S401) of the current radio broadcasting signal for receiving channel.At this point, in-car TV
TV receiving system is using receiving unit R4The current radio broadcasting signal for receiving channel is received.
Next, it is determined that whether the signal strength in the radio broadcasting signal of the step S401 current reception channel obtained is greater than
Or it is equal to threshold value t1(step S402).If it is to enter step S405 that the judgement of step S402, which is become, otherwise, enter step
S403.In step S403, judge whether the signal strength of the current radio broadcasting signal for receiving channel is less than threshold value t1And it is big
In or equal to threshold value t2.If it is to enter step S409 that the judgement of step S403, which is become, otherwise, S404 is entered step.In step
In rapid S404, judge whether the signal strength of the current radio broadcasting signal for receiving channel is less than threshold value t2And it is greater than or equal to threshold
Value t3.If it is to enter step S413 that the judgement of step S404, which is become, otherwise, S417 is entered step.
In step S405, lead to using by any one high-frequency reception in four high-frequency reception accesses 21,22,23,24
The receiving unit R that road is constituted1Receive the current radio broadcasting signal for receiving channel, while using by four high-frequency reception accesses
21, the search unit S that its excess-three high-frequency reception access in 22,23,24 is constituted1To be searched on entire television broadcast band
All channels of the TV station.Search unit S1Start to search for (step S406), and in search unit S1Search process in, sentence
Disconnected and search unit S1Corresponding receiving unit R1Whether the radio broadcasting signal of the current reception channel received is less than threshold value t3
(step S407).As receiving unit R1The radio broadcasting signal of the current reception channel received is less than threshold value t3When, search unit
S1It just stops search (step S408) and enters step S409, otherwise, search unit S1It completes on entire television broadcast band
The search (step S419) of all channels of the TV station simultaneously enters step S422.
In step S409, lead to using by any two high-frequency reception in four high-frequency reception accesses 21,22,23,24
The receiving unit R that road is constituted2Receive the current radio broadcasting signal for receiving channel, while using by four high-frequency reception accesses
21, the search unit S that the other two high-frequency reception access in 22,23,24 is constituted2To be searched on entire television broadcast band
All channels of the TV station.Search unit S2Start to search for (step S410), and in search unit S2Search process in, sentence
Disconnected and search unit S2Corresponding receiving unit R2Whether the radio broadcasting signal of the current reception channel received is less than threshold value t3
(step S411).As receiving unit R2The radio broadcasting signal of the current reception channel received is less than threshold value t3When, search unit
S2It just stops search (step S412) and enters step S413, otherwise, search unit S2It completes on entire television broadcast band
The search (step S420) of all channels of the TV station simultaneously enters step S422.
In step S413, using by wantonly three high-frequency reception accesses in four high-frequency reception accesses 21,22,23,24
The receiving unit R of composition3Receive the current radio broadcasting signal for receiving channel, while using by four high-frequency reception accesses
21, the search unit S that remaining high-frequency reception access in 22,23,24 is constituted3To be searched on entire television broadcast band
All channels of the TV station.Search unit S3Start to search for (step S414), and in search unit S3Search process in, sentence
Disconnected and search unit S3Corresponding receiving unit R3Whether the radio broadcasting signal of the current reception channel received is less than threshold value t3
(step S415).As receiving unit R3The radio broadcasting signal of the current reception channel received is less than threshold value t3When, search unit
S3It just stops search (step S416) and enters step S417, otherwise, search unit S3It completes on entire television broadcast band
The search (step S421) of all channels of the TV station simultaneously enters step S422.
In step S417, receiving unit R is utilized4To receive the current radio broadcasting signal for receiving channel.It is single when receiving
First R4The radio broadcasting signal of the current reception channel received is less than threshold value t3When, terminate the first search process and enters step
S304, otherwise, return step S401.
In step S422, judge whether to search multiple channels corresponding with the broadcast HD video information of the TV station
Radio broadcasting signal.If the judging result of step S422 be it is yes, use receiving unit R4Come receive search it is above-mentioned
In the radio broadcasting signal of the corresponding channels of multiple broadcast HD video information with the TV station signal strength it is maximum that
Radio broadcasting signal, and play the broadcast HD video information (step S423) of the corresponding TV station.At this point, will search
The channel of the maximum radio broadcasting signal of the signal strength arrived is as new current reception channel, return step S401.In addition, working as
One channel of the TV station is searched then, and the signal strength of the radio broadcasting signal of the channel is i.e. as in step S422
The radio broadcasting signal for the channel being compared with the signal strength of the radio broadcasting signal of other channels of the TV station
Signal strength.
If the judging result of step S422 be it is no, use receiving unit R4To receive the radio broadcasting searched letter
Number, and play the HD video information (step S424) of the corresponding TV station.At this point, the radio broadcasting searched is believed
Number channel as new current reception channel, return step S401.
Fig. 5 is second searching in the rating switching method of radio broadcasting signal and wireless network signal according to the present invention
The flow chart of one embodiment of rope processing.
Firstly, utilizing receiving unit R4Receive the current radio broadcasting signal (step S501) for receiving channel.
Judge monitor by receiving unit R4In the received current reception channel of any one high-frequency reception access
The signal strength of radio broadcasting signal whether be greater than or equal to threshold value t5(step S502).
If the judging result of step S502 be it is no, by all four high-frequency reception accesses 21,22,23,24 be divided into
Two groups, to respectively constitute search unit Sh1With search unit Sh2, utilize search unit Sh1On the television broadcast band of half
It scans for, utilizes search unit Sh2Described search (step S503) is carried out on the other half television broadcast band.Wherein, it searches
Cable elements Sh1With search unit Sh2Two high-frequency reception accesses for respectively including.Then, if search unit Sh1With search unit Sh2
Respective search is all completed, judges whether to search radio broadcasting letter corresponding with the broadcast HD video information of the TV station
Number (step S504).If the judging result of step S504 be it is yes, enter step S507.Otherwise, by search unit Sh1With search
Cable elements Sh2Merge by all four high-frequency reception accesses constitute 21,22,23,24 a search unit S4, utilize search
Cell S4Start to search for until searching radio broadcasting signal (step corresponding with the broadcast HD video information of the TV station
S505)。
If the judging result of step S502 be it is yes, carry out step S506, that is, utilize receiving unit R1It is current to receive
While receiving the radio broadcasting signal of channel, search unit S is also utilized1It carries out described search, after completing search enters step
Rapid S507.
In step s 507, judge whether to search multiple channels corresponding with the broadcast HD video information of the TV station
Radio broadcasting signal.If the judging result of step S507 is yes, progress step S508, i.e., with receiving unit R4To connect
Receive the maximum nothing of signal strength in the radio broadcasting signal of multiple channels corresponding with the broadcast HD video information of the TV station
Line broadcast singal terminates the second search process, enters step using the channel corresponding to it as new current reception channel
S310.In addition, when a channel of the TV station is searched then, signal strength, that is, conduct of the radio broadcasting signal of the channel
The nothing for the channel being compared in step s 507 with the signal strength of the radio broadcasting signal of other channels of the TV station
The signal strength of line broadcast singal.
If the judging result of step S507 is no, progress step S509, i.e., with receiving unit R4To receive search
The radio broadcasting signal of that channel arrived terminates described the using the channel corresponding to it as new current reception channel
Two search process, enter step S310.
Although being illustrated in conjunction with the accompanying drawings and embodiments to the present invention above, it will be appreciated that above description
The invention is not limited in any way.Those skilled in the art without departing from the true spirit and scope of the present invention may be used
To deform and change to the present invention as needed, these deformations and variation are within the scope of the present invention.In addition, at this
In invention, such as the rating switching method of radio broadcasting signal and wireless network signal passes through with n (n >=2 and be natural number)
The wireless broadcast receiving device of a high-frequency reception access receives and/or searches for the radio broadcasting signal, and by 1 wireless
Network communication device receives the wireless network signal, wherein a high-frequency reception access include antenna and one with
With the tuner of the antenna, and the characteristic of each antenna is identical, and the characteristic of each tuner is identical, is receiving
And/or during the search radio broadcasting signal, can allow the wireless broadcast receiving device includes described in some
The receiving unit that high-frequency reception access is constituted receives the radio broadcasting signal of a certain channel A of a certain TV station, meanwhile,
Allow include high-frequency reception access described in another part constitute search unit scan for, wherein described search refers to one by one
The radio broadcasting signal of all channels of the TV station on entire television broadcast band is received,
The rating switching method of radio broadcasting signal and wireless network signal according to the present invention is the following steps are included: step
Suddenly (1-1) utilizes the receiving unit R being made of the whole n high-frequency reception accessesnReceive the channel of the TV station
The radio broadcasting signal of A, and the broadcast HD video information of the TV station is played, at this point, the TV station is described
Channel A receives channel as current；Step (1-2) monitors the signal of the current radio broadcasting signal for receiving channel
Intensity；Step (1-3), when the signal strength of the current radio broadcasting signal for receiving channel monitored is greater than or waits
In the threshold value tn-1When, return step (1-2) otherwise enters step (1-4)；Step (1-4), it is logical using the wireless network
T unit looks for whether that there are network HD video information, the network HD video information and the TV stations on network
The content of the broadcast HD video information is identical, when searching out the network HD video information, enters step (1-5),
Otherwise, (1-12) is entered step；Step (1-5) starts to receive the wireless network for corresponding to the network HD video information
Network signal；Step (1-6), if the signal strength of the current radio broadcasting signal for receiving channel monitored is less than
Threshold value tn, then keep receiving the current radio broadcasting signal for receiving channel but stop playing the described of the TV station
HD video information is broadcasted, is switched to and plays the network HD video information and enter step (1-7), wherein the threshold value
tn-1Greater than the threshold value tn, otherwise, stop receiving the wireless network signal and carry out the first search process；Step (1-7),
Carry out the second search process；Step (1-8) utilizes the receiving unit RnThe electricity is obtained to by second search process
The radio broadcasting signal of a certain channel B of television stations is received, at this point, described in the channel B conduct of the TV station
It is current to receive channel, monitor the signal strength of the current radio broadcasting signal for receiving channel；Step (1-9), if
The signal strength of the current radio broadcasting signal for receiving channel monitored in step (1-8) is greater than or equal to institute
State threshold value tn, then stopping receiving the wireless network signal and stopping playing the network HD video information, it is switched to and broadcasts
The broadcast HD video information of the TV station is put, and carries out first search process, if the prison in step (1-8)
The signal strength of the current radio broadcasting signal for receiving channel measured is less than the threshold value tn, then enter step
(1-10)；Step (1-10) enters step (1-11), otherwise returns if wireless network cost of use is more than preset value
Step (1-7)；Step (1-11), if the current radio broadcasting for receiving channel monitored in step (1-8)
The signal strength of signal is greater than or equal to threshold value tn+1, then stop receiving the wireless network signal and stop playing the network
HD video information enters step (1-12), wherein the threshold value tnGreater than the threshold value tn+1, otherwise, return step (1-7)；
Step (1-12) starts the broadcast SD video information for playing the TV station, the broadcast SD video information of the TV station
Content it is identical as the content of the broadcast HD video information of the TV station, but the broadcast SD video of the TV station
The clarity of information is less than the clarity of the broadcast HD video information of the TV station；Step (1-13), when monitoring
It is described it is current receive channel the radio broadcasting signal signal strength be greater than or equal to the threshold value tnWhen, stop playing
The broadcast SD video information of the TV station is switched to and plays the broadcast HD video information of the TV station simultaneously
First search process is carried out, when the signal strength of the current radio broadcasting signal for receiving channel monitored is small
In the threshold value tnWhen, then enter step (1-14)；Step (1-14), if it is desired to start to play the network HD video letter
It ceases, then return step (1-4), otherwise, return step (1-13).
Further, first search process includes: step (2-1), obtains the current nothing for receiving channel
The signal strength of line broadcast singal；Step (2-2), when what is obtained in step (2-1) described current receives the described wireless of channel
The signal strength of broadcast singal is greater than or equal to threshold value t1When, utilize the receiving unit R being made of 1 high-frequency reception access1
To receive the current radio broadcasting signal for receiving channel, while being constituted using by the n-1 high-frequency reception accesses
Search unit S1Described search is carried out, in described search cell S1Described search during, when with described search unit
S1The corresponding receiving unit R1The current radio broadcasting signal for receiving channel received is less than the threshold value
tn-1When, just stop described search, utilizes the receiving unit R being made of 2 high-frequency reception accesses2It receives and described currently connects
The radio broadcasting signal of channel is received, and utilizes the receiving unit S being made of the n-2 high-frequency reception accesses2Come again
Described search is carried out, otherwise, described search is completed and enters step (2-4), when the current reception obtained in step (2-1)
The signal strength of the radio broadcasting signal of channel is greater than or equal to threshold value t2And it is less than the threshold value t1When, it is connect using described
Receive unit R2To receive the current radio broadcasting signal for receiving channel, while utilization described search cell S2Come carry out
Described search, wherein the threshold value t1Greater than the threshold value t2, in described search cell S2Described search during, when with
Described search cell S2The corresponding receiving unit R2The current radio broadcasting signal for receiving channel received
Signal strength is less than the threshold value tn-1When, just stop described search, utilizes the reception being made of 3 high-frequency reception accesses
Unit R3The current radio broadcasting signal for receiving channel is received, and using by the n-3 high-frequency reception access structures
At receiving unit S3Described search is re-started, otherwise, described search is completed and simultaneously enters step (2-4), and so on, when
It is greater than or equal to threshold value t in the signal strength for the current radio broadcasting signal for receiving channel that step (2-1) is obtainedk
(1≤k≤n-1 and k is natural number) and it is less than the threshold value tk-1When, utilize the receiving unit RkIt described is currently connect to receive
The radio broadcasting signal of channel is received, while utilizing described search cell SkTo carry out described search, wherein the threshold value
tk-1Greater than the threshold value tk, in described search cell SkDescribed search during, when with described search cell SkIt is corresponding
The receiving unit RkThe signal strength of the current radio broadcasting signal for receiving channel received is less than the threshold
Value tn-1When, just stop described search, utilizes the receiving unit R being made of the k+1 high-frequency reception accessesk+1It is described to receive
The current radio broadcasting signal for receiving channel, and utilize the search unit being made of the n-k-1 high-frequency reception accesses
Sk+1Re-start described search, complete described search and simultaneously enter step (2-4), when step (2-1) obtains it is described currently
The signal strength for receiving the radio broadcasting signal of channel is less than the threshold value tn-1When, enter step (2-3)；Step (2-
3) the receiving unit R, is utilizednThe signal of the current radio broadcasting signal for receiving channel, as the receiving unit Rn
The signal strength of the current radio broadcasting signal for receiving channel received is less than the threshold value tn-1When, terminate institute
It states the first search process and enters step (1-4), otherwise, return step (2-1)；Step (2-4), if may search for multiple
The radio broadcasting signal of channel corresponding with the broadcast HD video information of the TV station, then with the reception
Unit RnTo receive the nothing of the corresponding channel of the broadcast HD video information of the multiple and TV station that searches
The maximum radio broadcasting signal of signal strength in line broadcast singal, and play the described wide of the corresponding TV station
HD video information is broadcast, at this point, using the channel of the maximum radio broadcasting signal of the signal strength searched as new institute
State current reception channel, return step (2-1), if the broadcast HD video with the TV station can only be searched
The radio broadcasting signal of the corresponding channel of information, then with receiving unit RnTo receive the described wireless of the channel searched
Broadcast singal, and the HD video information of the corresponding TV station is played, at this point, described wireless by what is searched
The channel of broadcast singal is as the new current reception channel, return step (2-1).
Further, the threshold value tk, the threshold value tn, the threshold value tn+1It is the signal strength indication being determined in advance, institute
State threshold value tnIt is set as follows: when the signal strength of the radio broadcasting signal received is less than the threshold value tn
When, it cannot continuously play the corresponding HD video information of the radio broadcasting signal received, the threshold value tn+1
It is set as follows: when the signal strength of the radio broadcasting signal received is less than the threshold value tn+1When, just not
The corresponding SD video information of the radio broadcasting signal received can continuously be played.
Further, step (4-1) utilizes the receiving unit RnReceive the described wireless wide of the current reception channel
Broadcast signal；Step (4-2), if what is monitored passes through the receiving unit RnAny of the high-frequency reception access receive
The current signal strength of the radio broadcasting signal for receiving channel be both less than the threshold value tn+1, then by whole n
The high-frequency reception access respectively constitutes search unit Sh1With search unit Sh2, utilize described search cell Sh1In the institute of half
It states and carries out described search on television broadcast band, utilize described search cell Sh2The television broadcast band at the other half is enterprising
Row described search, wherein when n is even number, described search cell Sh1With described search cell Sh2The high frequency for being included connects
The quantity for receiving access is identical, when n is odd number, described search cell Sh1With described search cell Sh2The high frequency for being included
The quantity of receiving path differs only by one；As search unit Sh1And Sh2The broadcast that cannot be searched with the TV station is high
When the corresponding radio broadcasting signal of clear video information, two described search units are merged into 1 search unit Sn, utilize
Described search cell SnStart to search for corresponding with the broadcast HD video information of the TV station described until searching
Radio broadcasting signal enters step (4-4)；Step (4-3), if what is monitored passes through the receiving unit RnAny of
The signal strength of the received current radio broadcasting signal for receiving channel of high-frequency reception access is greater than or equal to
The threshold value tn+1, then utilizing the receiving unit R1To receive the current radio broadcasting signal for receiving channel
Meanwhile also utilizing described search cell S1It carries out described search, after completing described search enters step (4-4)；Step (4-
4), if may search for the described wireless wide of multiple channels corresponding with the broadcast HD video information of the TV station
Signal is broadcast, then with the receiving unit RnIt is multiple corresponding with the broadcast HD video information of the TV station to receive
The maximum radio broadcasting signal of signal strength in the radio broadcasting signal of channel, using the channel corresponding to it as new
The current reception channel, terminate second search process, enter step (1-8), if one and institute can only be searched
The radio broadcasting signal for stating the corresponding channel of the broadcast HD video information of TV station, then with the receiving unit
RnReceive the radio broadcasting signal of the channel searched, frequently using the channel corresponding to it as new current receptions
Road terminates second search process, enters step (1-8).
Claims (8)
1. a kind of in-car TV TV receiving system characterized by comprising
Wireless broadcast receiving device comprising n high-frequency reception access, demodulation integral unit and decoding unit, wherein n is 2
Above integer, and it is at least preset with n threshold value of the 1st threshold value~n-th threshold value, the 1st threshold value is maximum, successively takes small
Value, the wireless broadcast receiving device receive radio broadcasting signal；
Wireless communication device receives wireless network signal；
Control device, monitors the signal strength of the radio broadcasting signal, and and threshold value comparison, according to the comparison result by institute
The video information for stating some in radio broadcasting signal or the wireless network signal is selected as output video information；And
Display device exports the output video information selected by the control device,
The threshold value is preset as follows:
1st threshold value can be led to by the high-frequency reception as described at least one when received signal strength is the threshold value or more
The radio broadcasting signal that road receives carries out the value of the rating of continuous HD video information,
2nd threshold value can be led to by the high-frequency reception as described at least two when received signal strength is the threshold value or more
The radio broadcasting signal that road receives carries out the value of the rating of continuous HD video information,
And so on, n-th threshold value be when received signal strength is the threshold value or more, can be by by described at least n
The radio broadcasting signal that high-frequency reception access receives carries out the value of the rating of continuous HD video information,
Channel of the control device in monitoring, current receive currently receives the signal of the radio broadcasting signal of channel
When intensity is (n-1)th threshold value or more, the HD video information of the current radio broadcasting signal for receiving channel is selected
For the output video information,
The control device controls in such a way:
Multiple high-frequency reception accesses are grouped as some in receiving unit or search unit, it is single by the reception
Member continues the reception of the current radio broadcasting signal for receiving channel, carries out the current reception frequency by described search unit
The search of all channels of TV station involved in road,
When the signal strength of the current radio broadcasting signal for receiving channel monitored is n-th threshold value or more, into
One step by the signal strength and the 1st threshold value~(n-1)th threshold value successively compared with,
With 1 threshold value comparison, in the letter of the current radio broadcasting signal for receiving channel monitored
When number intensity is the 1st threshold value or more, among the n high-frequency reception accesses, the receiving unit is grouped as by 1
Continue the reception of the current radio broadcasting signal for receiving channel, and in the case where there is remaining situation by remaining high-frequency reception
Access is grouped as described search unit to carry out described search,
In k-th of the threshold value comparison started with a larger side in the 1st threshold value~(n-1)th threshold value, and k is 2 or more
In the case where integer, monitor it is described it is current receive channel radio broadcasting signal signal strength k-th of threshold value with
When above but being less than -1 threshold value of kth, among the n high-frequency reception accesses, the receiving unit is grouped as by k to continue
The reception of the current radio broadcasting signal for receiving channel, and in the case where there is remaining situation by remaining high-frequency reception access
Described search unit is grouped as to carry out described search.
2. in-car TV TV receiving system as described in claim 1, which is characterized in that
When the signal strength of the current radio broadcasting signal for receiving channel monitored is less than (n-1)th threshold value, make
The wireless communication device starts the reception of the wireless network signal,
If the signal strength of the current radio broadcasting signal for receiving channel monitored becomes smaller than n-th threshold value
Words, are selected as the output video information for the video information of the wireless network signal.
3. in-car TV TV receiving system as claimed in claim 2, which is characterized in that the control device is controlled in such a way
System:
It is identical with the current reception video information content of radio broadcasting signal of channel being searched by described search
When radio broadcasting signal involved in video information, that is, identical content wireless broadcast signal, the described of the whole being searched is monitored
The signal strength of identical content wireless broadcast signal, involved by the identical content wireless broadcast signal by maximum signal
Channel receive channel as current.
4. in-car TV TV receiving system as claimed in claim 3, which is characterized in that the control device is controlled in such a way
System:
When the signal strength of the current radio broadcasting signal for receiving channel monitored is less than n-th threshold value, it is with n
Quantity is identical when even number, and the n high-frequency reception accesses are grouped as two institutes by more one mode in any one when n is odd number
Search unit is stated to carry out described search,
When all not searching the identical content wireless broadcast signal by any one described search unit, by whole n
A high-frequency reception access is grouped as a described search unit, carry out described search until search the identical content without
Line broadcast singal,
By any one described search unit searches arrive the identical content wireless broadcast signal when, monitor be searched it is complete
The signal strength of the identical content wireless broadcast signal in portion believes the identical content wireless broadcast of maximum signal
Channel involved in number receives channel as current.
5. in-car TV TV receiving system as claimed in claim 2, which is characterized in that
It is at least further preset with the (n+1)th threshold value less than n-th threshold value,
The control device further judges whether the data traffic of the wireless network is more than setting value,
In the case where the data traffic of the wireless network is more than the setting value, in the current reception channel monitored
The signal strength of radio broadcasting signal be less than n-th threshold value but when more than (n+1)th threshold value, not being will be described wireless
The video information of network signal, but the SD video information of the current radio broadcasting signal for receiving channel is selected as institute
State output video information.
6. the rating switching method of a kind of radio broadcasting signal and wireless network signal characterized by comprising
Receive the wireless broadcast reception step of radio broadcasting signal；
Receive the wireless communication step of wireless network signal；
Monitor the radio broadcasting signal signal strength and and threshold value comparison, according to the comparison result, by the radio broadcasting
The video information of some in signal or the wireless network signal is selected as the rate-determining steps of output video information；And
The display step of the output video information selected by the rate-determining steps is exported,
Using n high-frequency reception access to receive radio broadcasting signal, it is at least preset with the 1st threshold value~the
N threshold value of n threshold value, the 1st threshold value is maximum, successively gets the small value, and preset the threshold value as follows:
1st threshold value can be led to by the high-frequency reception as described at least one when received signal strength is the threshold value or more
The radio broadcasting signal that road receives carries out the value of the rating of continuous HD video information,
2nd threshold value can be led to by the high-frequency reception as described at least two when received signal strength is the threshold value or more
The radio broadcasting signal that road receives carries out the value of the rating of continuous HD video information,
And so on, n-th threshold value be when received signal strength is the threshold value or more, can be by by described at least n
The radio broadcasting signal that high-frequency reception access receives carries out the value of the rating of continuous HD video information,
In the rate-determining steps, the channel in monitoring, current receive currently receives the radio broadcasting signal of channel
Signal strength be (n-1)th threshold value more than when, by it is described it is current receive channel radio broadcasting signal HD video believe
Breath is selected as the output video information,
In the rate-determining steps, multiple high-frequency reception accesses are grouped as a certain in receiving unit or search unit
It is a, continue the reception of the current radio broadcasting signal for receiving channel by the receiving unit, passes through described search unit
The search of the current all channels for receiving TV station involved in channel is carried out,
When the signal strength of the current radio broadcasting signal for receiving channel monitored is n-th threshold value or more, into
One step by the signal strength and the 1st threshold value~(n-1)th threshold value successively compared with,
With 1 threshold value comparison, in the letter of the current radio broadcasting signal for receiving channel monitored
When number intensity is the 1st threshold value or more, among the n high-frequency reception accesses, the receiving unit is grouped as by 1
Continue the reception of the current radio broadcasting signal for receiving channel, and in the case where there is remaining situation by remaining high-frequency reception
Access is grouped as described search unit to carry out described search,
In k-th of the threshold value comparison started with a larger side in the 1st threshold value~(n-1)th threshold value, and k is 2 or more
In the case where integer, monitor it is described it is current receive channel radio broadcasting signal signal strength k-th of threshold value with
When above but being less than -1 threshold value of kth, among the n high-frequency reception accesses, the receiving unit is grouped as by k to continue
The reception of the current radio broadcasting signal for receiving channel, and in the case where there is remaining situation by remaining high-frequency reception access
Described search unit is grouped as to carry out described search.
7. the rating switching method of radio broadcasting signal as claimed in claim 6 and wireless network signal, which is characterized in that
In the rate-determining steps, it is less than institute in the signal strength of the current radio broadcasting signal for receiving channel monitored
When stating the (n-1)th threshold value, start the reception of the wireless network signal,
If the signal strength of the current radio broadcasting signal for receiving channel monitored becomes smaller than n-th threshold value
Words, are selected as the output video information for the video information of the wireless network signal.
8. the rating switching method of radio broadcasting signal as claimed in claim 7 and wireless network signal, which is characterized in that
It is at least further preset with the (n+1)th threshold value less than n-th threshold value,
In the rate-determining steps, further judge whether the data traffic of the wireless network is more than setting value,
In the case where the data traffic of the wireless network is more than the setting value, in the current reception channel monitored
The signal strength of radio broadcasting signal be less than n-th threshold value but when more than (n+1)th threshold value, not being will be described wireless
The video information of network signal, but the SD video information of the current radio broadcasting signal for receiving channel is selected as institute
State output video information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175337.6A CN105099590B (en) | 2014-04-28 | 2014-04-28 | The rating switching method of in-car TV TV receiving system and radio broadcasting signal and wireless network signal |
| JP2015078143A JP2015211467A (en) | 2014-04-28 | 2015-04-07 | On-vehicle television viewing system, and viewing switching method between wireless broadcast signal and wireless network signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175337.6A CN105099590B (en) | 2014-04-28 | 2014-04-28 | The rating switching method of in-car TV TV receiving system and radio broadcasting signal and wireless network signal |
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| Publication Number | Publication Date |
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| CN105099590A CN105099590A (en) | 2015-11-25 |
| CN105099590B true CN105099590B (en) | 2019-02-19 |
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| CN201410175337.6A Active CN105099590B (en) | 2014-04-28 | 2014-04-28 | The rating switching method of in-car TV TV receiving system and radio broadcasting signal and wireless network signal |
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| DE102019201605B3 (en) * | 2019-02-07 | 2020-04-23 | Audi Ag | Method for operating a media playback device and media playback device |
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| Publication number | Publication date |
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| JP2015211467A (en) | 2015-11-24 |
| CN105099590A (en) | 2015-11-25 |
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