CN203840508U - Digital signage - Google Patents
Digital signage Download PDFInfo
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- CN203840508U CN203840508U CN201420183417.1U CN201420183417U CN203840508U CN 203840508 U CN203840508 U CN 203840508U CN 201420183417 U CN201420183417 U CN 201420183417U CN 203840508 U CN203840508 U CN 203840508U
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- 230000005236 sound signal Effects 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000000007 visual effect Effects 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
Abstract
The utility model relates to a digital signage. The digital signage is suitable for being connected to an image signal source and a sound signal source. The digital signage comprises a display and a plurality of loudspeakers, wherein the display is suitable for being coupled to the image signal source and used for converting image signals provided by the image signal source into images; the loudspeakers are arranged adjacent to the display, suitable for being coupled to the sound signal source and used for converting analog sound signals provided by the sound signal source into sounds; sound frequency bands outputted by the loudspeakers comprise a sound frequency band which is difficult to be heard by the human ear; and the sound transmission range of the loudspeakers and an image visual range of the display are overlapped.
Description
Technical field
The utility model relates to a kind of multimedia propagation equipment, particularly relates to a kind of digital billboard.
Background technology
Numeral billboard is to play film, animation, image or word via display, so that information is conveyed to target customers via visual manner.In addition, digital billboard also can be equipped with loud speaker to play sound, so that information is conveyed to target customers via vision and the sense of hearing.Owing to can attracting via dynamic image or multimedia mode consumer's sight, digital billboard to replace gradually traditional paper bulletin, and the place that need to wait for through being common in crowd, such as railway station, airport, bus stop, hospital, bank, cinema etc.
Utility model content
The utility model provides a kind of digital billboard, in order to extra information propagation pattern to be provided.
A kind of digital billboard of the present utility model is suitable for being connected to a signal of video signal source and voice signal source.Numeral billboard comprises a display and a plurality of loud speaker.Display is suitable for being coupled to signal of video signal source, in order to the signal of video signal that signal of video signal source is provided, is converted to image.These loud speakers arrange proximity displays, and are suitable for being coupled to voice signal source, in order to the analoging sound signal that voice signal source is provided, are converted to sound.The voiceband that these loud speakers are exported comprises the voiceband that people's ear is difficult to hear.The image visual range of the sound transmission scope overlapping display of these loud speakers.
Based on above-mentioned, in the utility model, the voiceband that the loud speaker of digital billboard is exported comprises the voiceband that people's ear is difficult to hear, so that tone code technology also can be used on digital billboard, thereby provides extra information propagation pattern.
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and be described with reference to the accompanying drawings as follows.
Accompanying drawing explanation
Fig. 1 is the front-view schematic diagram according to a kind of digital billboard of an embodiment of the present utility model.
Fig. 2 is the schematic top plan view of the digital billboard of Fig. 1.
Fig. 3 is the circuit block diagram of the loud speaker of Fig. 1.
Fig. 4 is the schematic top plan view according to a kind of digital billboard of another embodiment of the present utility model.
Fig. 5 is the schematic top plan view according to a kind of digital billboard of another embodiment of the present utility model.
Reference numeral explanation
51: signal of video signal source
52: voice signal source
100,100a, 100b: digital billboard
110: display
110a: display surface
120: loud speaker
122: input connector
124: acoustic processing module
124a: analog/digital converter
124b: band pass filter
124c: amplifier
124d: the first digital/analog converter
124e: the second digital/analog converter
126: speaker unit
128: out connector
A: sound transmission axis
P: geometrical plane
Embodiment
Tone code (Sound Code) technology is that information is carried out after specific coding, is packaged in the inaudible high frequency band sound of people's ear, and is captured and after system identification, just can be obtained the information being packaged in tone code by microphone.Owing to information can being entrained in the sound of any music or film by tone code technology, thus can be fast by sound by various information pushings to electronic installation (such as intelligent mobile phone or flat computer etc.).For example, when user is when watching TV programme, the sound of TV programme can be carried information pushing secretly to electronic installation by tone code technology, makes electronic installation can be linked to corresponding website to carry out various correlated activations, such as shopping, ballot and discussion etc.
Numeral billboard is that the mode via vision and the sense of hearing conveys to target customers or consumer by information.For tone code technology also can be used at digital billboard, the utility model is improved for digital billboard.
Please refer to Fig. 1 and Fig. 2, the digital billboard 100 of the present embodiment is suitable for being connected to 51 and one voice signal source 52, a signal of video signal source.Signal of video signal source 51 and voice signal source 52 can be a multimedia player.Numeral billboard 100 comprises a display 110 and a plurality of loud speaker 120.Display 110 is suitable for being coupled to signal of video signal source 51, in order to signal of video signal source 51 signal of video signal that provide are converted to image.These loud speakers 120 arrange proximity displays 110, and are suitable for being coupled to voice signal source 52, in order to voice signal source 52 analoging sound signals that provide are converted to sound.The locate mode of display 110 is such as being the forms such as hanging or wall hanging, and the locate mode that these loud speakers 120 arrange proximity displays 110 is such as being the forms such as machinery is fixing.
It should be noted that the voiceband that these loud speakers 120 are exported comprises the voiceband that people's ear is difficult to hear, for example 15000 hertz to 22000 hertz, i.e. " tone code " of the above.In one embodiment, the sound that these loud speakers 120 are exported is for example the sound of 15000 hertz, 18000 hertz, 20000 hertz or 22000 hertz.Therefore, these loud speakers 120 can be applicable to tone code technology, by sound by various information pushings to electronic installation (such as intelligent mobile phone or flat computer etc.).
In order to allow the electronic installation (such as intelligent mobile phone or flat computer etc.) of the target customers in the image visual range of display 110 of digital billboard 100 can receive the sound of loud speaker 120 information of being entrained with of sending of digital billboard 100, can set the image visual range of the sound transmission scope overlapping display 110 of these loud speakers 120.In order to reduce the sound that adjacent loud speaker 120 sends, cause each other interference, the sound transmission scope that can set these loud speakers 120 in fact overlaps mutually.
In the present embodiment, the angle summation of the sound transmission scope of these loud speakers 120 equals 180 degree, to contain as much as possible the image visible range of display 110.For example, as shown in Figures 1 and 2, at the angle of the sound transmission scope of the loud speaker 120 of display 110 central authorities, are 100 degree, and at the angle of the sound transmission scope of all the other these loud speakers 120 of display 110 both sides, are 40 degree respectively.
In the present embodiment, as shown in Figure 2, display 110 has a display surface 110a, and the sound transmission axis A of these loud speakers 120 meets on a geometrical plane P at display surface 110a place.In another embodiment, as shown in Figure 4, the sound transmission axis A of these loud speakers 120 of digital billboard 100a meets at the rear of a geometrical plane P at display surface 110a place.
In the present embodiment, as shown in Figure 2, three loud speakers 120 of only take are example, but the utility model is not limited to this.In another embodiment, as shown in Figure 5, digital billboard 100b also can comprise four loud speakers 120 or more loud speaker 120.The mode that these loud speakers 120 are put can be determined according to the propagable angle of loud speaker 120, as long as the angle summation of the sound transmission scope of these loud speakers 120 equals 180 degree.
Please refer to Fig. 3, in the present embodiment, loud speaker 120 can comprise an input connector 122, an acoustic processing module 124, a speaker unit 126 and an out connector 128.Input connector 122 is suitable for being coupled to voice signal source 52, in order to receive from voice signal source 52 analoging sound signals of exporting.Acoustic processing module 124 is coupled to input connector 122, in order to treatment of simulated voice signal.Speaker unit 126 is coupled to acoustic processing module 124, in order to export the analoging sound signal after processing to the external world.The voiceband that speaker unit 126 is exported, except the sound frequency that comprises people's ear and can hear, also comprises the voiceband that people's ear is difficult to hear, for example 15000 hertz to 22000 hertz.In one embodiment, the sound that these loud speakers 120 are exported is for example the sound of 15000 hertz, 18000 hertz, 20000 hertz or 22000 hertz.Out connector 128 is coupled to acoustic processing module 124, in order to the analoging sound signal after processing is sent to the input connector 122 of the loud speaker 120 of next stage.Therefore, when these loud speakers 120 are connected in series each other, only need one of these loud speakers 120 to be coupled to voice signal source 52, and the loud speaker of next stage 120 is coupled to the out connector 128 in the loud speaker 120 of upper level, to receive the analoging sound signal of being exported from out connector 128, thus, 120 of these loud speakers can be shared each other from voice signal source 52 analoging sound signals of exporting.
Please refer to Fig. 3, in the present embodiment, acoustic processing module 124 comprises an analog/digital converter 124a, a band pass filter 124b, an amplifier 124c, one first digital/analog converter 124d and one second digital/analog converter 124e.Analog/digital converter 124a is coupled to input connector 122, in order to the analoging sound signal from voice signal source 52 is converted to digital audio signal.Band pass filter 124b is coupled to analog/digital converter 124a, in order to filter the noise of digital audio signal, and retains that people's ear can be heard and the digital audio signal of the frequency band that people's ear is difficult to hear.Amplifier 124c is coupled to band pass filter 124b, in order to amplify the digital audio signal after filtering.The first digital/analog converter 124d is coupled to speaker unit 126, in order to the digital audio signal after amplifying is converted to analoging sound signal, and exports speaker unit 126 to.Noticeable, because the analoging sound signal of speaker unit 126 output amplifies through amplifier 124c, no matter be therefore sound or tone code, quality is all comparatively clear, and easily by user or the machine that receives tone code receives.The second digital/analog converter 124e is coupled to band pass filter 124b, in order to the digital audio signal after filtering is converted to analoging sound signal, and exports out connector 128 to, to be suitable for being coupled to the input connector 122 of the loud speaker 120 of next stage.The above-mentioned digital audio signal that exports the second digital/analog converter 124e to equally also comprises that people's ear can be heard and the digital audio signal of the frequency band that people's ear is difficult to hear.By out connector 128, exported to the analoging sound signal of the loud speaker 120 of next stage, can again utilize above-mentioned signal processing mode, to complete the sound of a plurality of serial connection loud speakers 120, the propagation of tone code.
In sum, in digital billboard of the present utility model, the voiceband that these loud speakers are exported also comprises the voiceband that people's ear is difficult to hear, so that tone code technology also can be used on digital billboard, thereby provides extra information propagation pattern.In digital billboard of the present utility model, the angle summation of the sound transmission scope of these loud speakers can equal 180 degree, to contain as much as possible the image visible range of display.In digital billboard of the present utility model, except sending the sound of the information of being entrained with, these loud speakers also can be connected in series each other, thus only need one of these loud speakers to receive the analoging sound signal of exporting from voice signal source, and remaining loud speaker also can be shared analoging sound signal.
Although the utility model discloses as above with embodiment; so it is not in order to limit the utility model; those skilled in the art; do not departing under the prerequisite of spirit and scope of the present utility model; can do some changes and retouching, therefore protection range of the present utility model is to be as the criterion with claim of the present utility model.
Claims (10)
1. a digital billboard, is characterized in that, is suitable for being connected to a signal of video signal source and voice signal source, and this numeral billboard comprises:
One display, is suitable for being coupled to this signal of video signal source, in order to the signal of video signal that this signal of video signal source is provided, is converted to image; And
A plurality of loud speakers, contiguous this display is set, and be suitable for being coupled to this voice signal source, in order to the analoging sound signal that this voice signal source is provided, be converted to sound, the voiceband that wherein these loud speakers are exported comprises the voiceband that people's ear is difficult to hear, and the overlap image visual range of this display of the sound transmission scope of these loud speakers.
2. digital billboard as claimed in claim 1, is characterized in that, the sound transmission scope of these loud speakers does not overlap in fact mutually.
3. digital billboard as claimed in claim 1, is characterized in that, the angle summation of the sound transmission scope of these loud speakers equals 180 degree.
4. digital billboard as claimed in claim 1, is characterized in that, this display has a display surface, and the sound transmission axis of these loud speakers meets on the geometrical plane at this display surface place or meets at the rear of this geometrical plane.
5. digital billboard as claimed in claim 1, is characterized in that, the quantity of these loud speakers is three.
6. digital billboard as claimed in claim 5, is characterized in that, position is 100 degree at the angle of the sound transmission scope of this loud speaker of these display central authorities, and position is 40 degree at the angle of the sound transmission scope of all the other these loud speakers of these display both sides respectively.
7. digital billboard as claimed in claim 1, is characterized in that, the voiceband that this loud speaker is exported comprises 15000 hertz to 22000 hertz.
8. digital billboard as claimed in claim 1, is characterized in that, the sound that this loud speaker is exported is the sound of 15000 hertz, 18000 hertz, 20000 hertz or 22000 hertz.
9. digital billboard as claimed in claim 1, is characterized in that, each of a plurality of loud speakers comprises:
One input connector, is suitable for being coupled to this voice signal source, in order to receive the analoging sound signal of exporting from this voice signal source;
One acoustic processing module, is coupled to this input connector, in order to treatment of simulated voice signal;
One speaker unit, is coupled to this acoustic processing module, and in order to the analoging sound signal after processing is converted to sound, the voiceband that wherein this speaker unit is exported comprises the voiceband that people's ear is difficult to hear; And
One out connector, is coupled to this acoustic processing module, in order to the analoging sound signal after processing is sent to another of a plurality of loud speakers.
10. digital billboard as claimed in claim 9, is characterized in that, this acoustic processing module comprises:
One analog/digital converter, is coupled to this input connector, in order to the analoging sound signal from this voice signal source is converted to digital audio signal;
One band pass filter, is coupled to this analog/digital converter, in order to filter the noise of digital audio signal, and retains that people's ear can be heard and the digital audio signal of the frequency band that people's ear is difficult to hear;
One amplifier, is coupled to this band pass filter, in order to amplify the digital audio signal after filtering;
One first digital/analog converter, is coupled to this speaker unit, in order to the digital audio signal after amplifying is converted to analoging sound signal, and exports this speaker unit to; And
One second digital/analog converter, is coupled to this band pass filter, in order to the digital audio signal after filtering is converted to analoging sound signal, and exports this out connector to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420183417.1U CN203840508U (en) | 2014-04-16 | 2014-04-16 | Digital signage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420183417.1U CN203840508U (en) | 2014-04-16 | 2014-04-16 | Digital signage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203840508U true CN203840508U (en) | 2014-09-17 |
Family
ID=51518300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420183417.1U Expired - Lifetime CN203840508U (en) | 2014-04-16 | 2014-04-16 | Digital signage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203840508U (en) |
-
2014
- 2014-04-16 CN CN201420183417.1U patent/CN203840508U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |