CN202009467U - Detector and set top box - Google Patents
Detector and set top box Download PDFInfo
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- CN202009467U CN202009467U CN2011200805657U CN201120080565U CN202009467U CN 202009467 U CN202009467 U CN 202009467U CN 2011200805657 U CN2011200805657 U CN 2011200805657U CN 201120080565 U CN201120080565 U CN 201120080565U CN 202009467 U CN202009467 U CN 202009467U
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- sense channel
- checkout gear
- scart interface
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Abstract
The embodiment of the utility model discloses a detector, which is used for detecting a dedicated audio/video SCART (Syndicat des Constructeurs d'Appareils Radio Recepteurs et Televiseurs) interface of a set top box, the detector comprises a case, which is of a hollow holding structure, detection channels which respectively correspond to pins of the SCART interface one by one are arranged in the holding space of the case, one end of each detection channel is a signal source-connecting end, and the other end of each detection channel is a pin-connecting end which can be connected with a corresponding pin of the SCART interface. The embodiment of the utility model also discloses the set top box. The detector can be adopted to simply and quickly detect the pins of the SCART interface and accurately judge the states of the pins of the SCART interface, and the utility model is highly practical.
Description
Technical field
The utility model relates to set-top box SCART(Syndicatdes Constructeursd Appareils Radiorecepteurset Televiseurs, dedicated tone video interface) technical field that interface detects, relate in particular to a kind of checkout gear and set-top box.
Background technology
The SCART interface is a kind of audio-video interface of special use, and it is a kind of audiovisual interconnection industrial standard, also is the interconnection and interflow interface that is widely used on satellite television receiver, television set, video tape recorder and other audio ﹠ video equipment.The SCART interface of standard be otherwise known as 21 core sockets or 21 needle connectors, it comprises 21 pins, profile is at right angles trapezoidal.The pinout of SCART interface the Voice ﹠ Video signal, can be used to transmit CVBS(Composite Video Broadcast Signal,, RGB) etc. the composite video broadcast singal) and interlacing RGB(red, green, blue vision signal also can transmit stereo audio signal.21 pins of SCART interface transmit 21 signals simultaneously, comprising: composite video signal, audio signal, control signal, ground wire and data wire.
At present, most of digital TV set-top box all is provided with the SCART interface, sees also Fig. 1, is the structural representation of existing set-top box; Wherein, 101 is the shell of set-top box, and this enclosure has accommodation space; 111 is the START interface, and this START interface is positioned on the described shell.Being provided with of SCART interface reduced set-top box and frequently plugged the loaded down with trivial details of joint, improved the quality of set-top box input picture simultaneously, therefore, when the pin of SCART interface appears corrupted, can cause set-top box to produce improper phenomenons such as the audio frequency and video output function is bad.The detection of existing pin to the SCART interface needs the Test Engineer to take set-top box apart usually, adopt each pin voltage of universal instrument testing SCART interface, locate the corrupted pin of SCART interface by the pin voltage that records, this detection scheme needs the professional to take set-top box apart each pin is detected one by one, operation is comparatively complicated, and expend time in, labor intensive, practicality is lower.
The utility model content
The utility model embodiment technical problem to be solved is, a kind of checkout gear and set-top box are provided, can be simply, the pin to the SCART interface detects apace, accurately judges the state of the pin of SCART interface, the practicality height.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of checkout gear, is used for the SCART interface of machines top box, comprising:
Housing, described housing are the accommodating structure of hollow, are provided with in the accommodation space of described housing and the pin of SCART interface sense channel one to one;
One end of described each sense channel is the signal source link, and the other end of described each sense channel is to be used for the pin link that is connected with the corresponding pin of SCART interface.
Wherein, the quantity of described sense channel is identical with the pin number of SCART interface; Described sense channel is corresponding one by one with the pin of SCART interface.
Wherein, described housing is provided with the circuit of LED identical with the quantity of described sense channel; Wherein, each road circuit of LED all connects the sense channel corresponding with it separately.
Wherein, the 8th sense channel of the 8th pin correspondence of SCART interface is provided with first gating switch; The 16th sense channel of the 16th pin correspondence of SCART interface is provided with second gating switch.
Wherein, the 8 road circuit of LED of the 8th sense channel correspondence comprises: two common cathode light-emitting diodes; Described the 8 road circuit of LED is connected with described first gating switch.
Wherein, the 16 road circuit of LED of the 16th sense channel correspondence comprises: two common cathode light-emitting diodes; Described the 16 road circuit of LED is connected with described second gating switch.
Wherein, also be provided with power interface on the described housing, described power interface is connected with external power source, for described checkout gear provides working power.
Wherein, the pin link of described sense channel comprises: audio frequency left and right acoustic channels input, audio frequency left and right acoustic channels output, R signal input part, G signal input part, B signal input part, composite video signal input, composite video signal output, function diverter switch I/O end, blanking signal I/O end, a plurality of earth terminal and communication data wire.
Correspondingly, the utility model embodiment also provides a kind of set-top box, comprising: have the shell of accommodation space, described shell is provided with the SCART interface, wherein: also be provided with the detection jack on the described shell, checkout gear is connected with the pin of described SCART interface by described detection jack.
Wherein, the pin link of described checkout gear is connected with the pin of described SCART interface by described detection jack.
Implement the utility model embodiment, have following beneficial effect:
1, the checkout gear of the utility model embodiment adopt with the pin of SCART interface one to one sense channel the pin of SCART interface is detected, can judge the state of each pin of SCART interface simply, quickly and accurately, when SCART interface operation irregularity, checkout gear can be located the corrupted pin of SCART interface fast, improve detection efficiency, improved practicality;
2, the set-top box of the utility model embodiment is provided with the detection jack, and directly the joint detection device is realized the fast detecting of each pin state of SCART interface has been improved detection efficiency, has improved the practicality of set-top box.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing set-top box;
Fig. 2 is the structural representation of the embodiment of checkout gear of the present utility model;
Fig. 3 is an electrical block diagram embodiment illustrated in fig. 2;
Fig. 4 is the structural representation of first embodiment of set-top box of the present utility model;
Fig. 5 is the structural representation of second embodiment of set-top box of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 2, be the structural representation of the embodiment of checkout gear of the present utility model; Please, be electrical block diagram embodiment illustrated in fig. 2 in the lump referring to Fig. 3; Described checkout gear is used for the SCART interface of machines top box, comprising:
Housing 201, described housing 201 is the accommodating structure of hollow, is provided with in the accommodation space of described housing 201 and the pin of SCART interface sense channel (among the figure not label) one to one.One end of described each sense channel is the signal source link, and the other end of described each sense channel is to be used for the pin link that is connected with the pin of SCART interface.
The quantity of described sense channel is identical with the pin number of SCART interface, and described sense channel is corresponding one by one with the pin of SCART interface.Because the SCART interface of standard comprises 21 pins, preferably, described checkout gear comprises 21 sense channels, 21 signal source links (referring to the signal source link of " 1-21 " shown in Figure 2), is used to connect CVBS signal source, audio signal source, control signal source, ground wire and data wire; And 21 pin links (referring to the pin link of " Pin-1 to Pin-21 " shown in Figure 2), comprising: audio frequency left and right acoustic channels input, audio frequency left and right acoustic channels output, R signal input part, G signal input part, B signal input part, CVBS signal input part, CVBS signal output part, function diverter switch I/O end, blanking signal I/O end, a plurality of earth terminal and communication data wire.
In the specific implementation, 21 pin links of described checkout gear dock one by one with 21 pins of the SCART interface of standard, transfer function according to each pin of standard SCART interface, 21 pin links of described checkout gear are respectively: Pin-1 is an audio frequency R channel output, Pin-2 is an audio frequency R channel input, Pin-3 is an audio frequency L channel output, Pin-4 is the earth terminal of audio signal, Pin-5 is a rgb video component signal B signal ground end, Pin-6 is an audio frequency L channel input, Pin-7 is a rgb video component signal B signal input part, Pin-8 is a function diverter switch I/O end (signal controlling end), Pin-9 is a rgb video component signal G signal ground end, Pin-10 is the data wire that communication is used, Pin-11 is a rgb video component signal R signal input part, Pin-12 is the data wire that communication is used, Pin-13 is the earth terminal of the G signal of rgb video component signal, Pin-14 is the blanking signal earth terminal, Pin-15 is a rgb video component signal R signal input part, Pin-16 is blanking signal I/O end (a signal controlling end), Pin-17 is a CVBS signal ground end, Pin-18 is the blanking signal earth terminal, Pin-19 is the CVBS signal output part, Pin-20 is the CVBS signal input part, and Pin-21 is a ground wire.When the SCART interface was detected, the Pin-1 of described checkout gear was connected with the 1st pin of SCART interface, and Pin-2 is connected with the 2nd pin of SCART interface, and by that analogy, Pin-21 is connected with the 21st pin of SCART interface.
Described housing 201 is provided with the circuit of LED identical with the quantity of described sense channel, and preferably, the way of described circuit of LED is 21 the tunnel.The all corresponding unique sense channel of each road circuit of LED, each road circuit of LED all connect the sense channel corresponding with it separately.
As shown in Figure 3, an end of the 1st sense channel is that the other end of signal source link 1, the 1 sense channel is pin link Pin-1; The 1 road circuit of LED comprises the resistance R 1 and the light-emitting diode D1 of mutual series connection, and preferably, the specification of R1 is 1K Ω, and D1 selects green light-emitting diode for use.One end of the 2nd sense channel is that the other end of signal source link 2, the 2 sense channels is pin link Pin-2; The 2 road circuit of LED comprises the resistance R 2 and the light-emitting diode D2 of mutual series connection, and preferably, the specification of R2 is 1K Ω, and D2 selects green light-emitting diode for use.Except that the 8th sense channel and the circuit of LED that the 16th sense channel is connected, the circuit of LED that other each sense channels connect is all identical.
Because the 8th pin of SCART interface is the signal controlling pin, the 8th sense channel of described checkout gear is provided with the first gating switch U1, the 8 road circuit of LED of the 8th sense channel correspondence comprises: two common cathode light-emitting diode D8, and the resistance R 8 that is connected in series with D8; Preferably, the specification of R8 is 1K Ω, the common cathode light-emitting diode of red/green that D8 selects for use, and described the 8 road circuit of LED is connected with the A2 end with the A1 of the described first gating switch U1.In the specific implementation, when the input voltage of the signal source input 8 of the 8th sense channel was 0-2V, the A1 of U1 and A2 end be gating not all; When the input voltage of the signal source input 8 of the 8th sense channel is 5-8V, the A1 of U1 end gating, red light-emitting diode is bright; When the input voltage of the signal source input 8 of the 8th sense channel is 9-12V, the A2 of U1 end gating, green light-emitting diode is bright.
Because the 16th pin of SCART interface is the signal controlling pin, the 16th sense channel is provided with the second gating switch U2, the 16 road circuit of LED of the 16th sense channel correspondence comprises: two common cathode light-emitting diode D16, and the resistance R 16 that is connected in series with D16; Preferably, the specification of R16 is 1K Ω, the common cathode light-emitting diode of red/green that D16 selects for use, and described the 16 road circuit of LED is connected with the B2 end with the B1 of the described second gating switch U2.In the specific implementation, when the input voltage of the signal source input 16 of the 16th sense channel is 1-3V, the B1 of U2 end gating, red light-emitting diode is bright; When the input voltage of the signal source input 16 of the 16th sense channel is 0-0.4V, the B2 of U2 end gating, green light-emitting diode is bright.
Further as shown in Figure 3, also be provided with power interface (VCC interface) on the described housing 201, described power interface is connected with external power source, for described checkout gear provides working power.Described first gating switch U1 and the described second gating switch U2 are connected to power interface by resistance R 22, and preferably, the specification of R22 is 47 Ω.In the specific implementation, this power interface can be dry cell interface or other power interfaces.
See also Fig. 4, be the structural representation of first embodiment of set-top box of the present utility model; Please in the lump referring to Fig. 5, be the structural representation of second embodiment of set-top box of the present utility model.Described set-top box comprises: the shell 301 with accommodation space, described shell 301 is provided with SCART interface 311, also be provided with on the described shell 301 and detect jack 312, Fig. 2 or checkout gear embodiment illustrated in fig. 3 can be connected with the pin of described SCART interface by described detection jack 312; Particularly, the pin link of described checkout gear is connected with the pin of described SCART interface by described detection jack 312.
Be understandable that, Fig. 4 and set-top box embodiment illustrated in fig. 5 and the difference of existing set-top box are: the cover top portion that Fig. 4 and set-top box embodiment illustrated in fig. 5 face the SCART interface is provided with and detects jack 312, open these detection jack 312 places, face the shell 313 of SCART interface, the pin link of checkout gear can be inserted in this detection jack 312 and dock, realize detection the pin of SCART interface with each pin of SCART interface.
To the assembling and the operating principle of checkout gear of the present utility model be described in detail below.
Circuit of LED is connected by structure shown in Figure 3, adopt housing 201 encapsulation, promptly finished the assembling process of checkout gear of the present utility model.In the detection jack 312 with the pin link insertion machine top box of the checkout gear that assembles, Pin-1 is connected with the 1st pin of SCART interface, Pin-2 is connected with the 2nd pin of SCART interface, and by that analogy, Pin-21 is connected with the 21st pin of SCART interface; Signal source link with checkout gear connects corresponding signal source successively then, can carry out the detection of SCART interface.In testing process to the pin of SCART interface; because all unique corresponding sense channel of each pin of SCART interface; therefore; by observing the luminous situation (luminous or not luminous) of the light-emitting diode that each sense channel is connected, can judge the operating state (normal or unusual) of the pin of its corresponding SCART interface.
The operating principle of checkout gear of the present utility model is described with instantiation below.
The CVBS signal input part is by the 20th pin control of SCART interface, if energising back television image goes wrong or does not have image output, at this moment, in can detection jack, and the CVBS signal source be connected to the signal source link 20 of described checkout gear with the pin link insertion machine top box of described checkout gear.Whether the 20 road light-emitting diode of observing described checkout gear is luminous, if luminous, shows that then the 20th pin of SCART interface is normal, judges possibility because other reasons causes image to go wrong or do not have image output; If not luminous, show that then the 20th pin of SCART interface is unusual, the 20th pin of locating the SCART interface thus is the corrupted pin.In addition, in the above-mentioned testing process, can also judge signal source and signal source input voltage fast according to the luminous situation of the 8 road and the 16 tunnel red/green light-emitting diode, be specially: the signal source link 8 and the signal source link 16 that respectively corresponding signal source are connected to described checkout gear, if television image shows according to the normal tv aspect ratio, and red/green light-emitting diode of the 8 tunnel does not all work, and can judge that then the signal source input voltage is 0～2V; If TV SCART signal pattern automatically switches to the 16:9 display format, and the 8 tunnel red light emitting diodes is bright, can judge that then the signal source input voltage is that input voltage is 5～8V; If TV SCART signal pattern automatically switches to the 4:3 display format, and the 8 tunnel green LED is bright, can judge that then the signal source input voltage is 9～12V.If the 16 tunnel red light emitting diodes is bright, then showing current is the rgb signal source, and the signal source input voltage is 1～3V; If the 16 tunnel green LED is bright, then showing current is the CVBS signal source, and the signal source input voltage is 0～0.4V.
Description by the foregoing description, the checkout gear of the utility model embodiment adopt with the pin of SCART interface one to one sense channel the pin of SCART interface is detected, can judge the state of each pin of SCART interface simply, quickly and accurately, when SCART interface operation irregularity, checkout gear can be located the corrupted pin of SCART interface fast, improve detection efficiency, improved practicality; In addition, the set-top box of the utility model embodiment is provided with the detection jack, and directly the joint detection device is realized the fast detecting of each pin state of SCART interface has been improved detection efficiency, has improved the practicality of set-top box.
Above disclosed only is a kind of preferred embodiment of the utility model, certainly can not limit the interest field of the utility model with this, one of ordinary skill in the art will appreciate that all or part of flow process that realizes the foregoing description, and according to the equivalent variations that the utility model claim is done, the scope that still belongs to utility model and contained.
Claims (10)
1. checkout gear is used for the dedicated tone video SCART interface of machines top box, it is characterized in that, comprising:
Housing, described housing are the accommodating structure of hollow, are provided with in the accommodation space of described housing and the pin of SCART interface sense channel one to one;
One end of described each sense channel is the signal source link, and the other end of described each sense channel is to be used for the pin link that is connected with the corresponding pin of SCART interface.
2. checkout gear as claimed in claim 1 is characterized in that, the quantity of described sense channel is identical with the pin number of SCART interface;
Described sense channel is corresponding one by one with the pin of SCART interface.
3. checkout gear as claimed in claim 2 is characterized in that, described housing is provided with the circuit of LED identical with the quantity of described sense channel; Wherein, each road circuit of LED all connects the sense channel corresponding with it separately.
4. checkout gear as claimed in claim 3 is characterized in that:
The 8th sense channel of the 8th pin correspondence of SCART interface is provided with first gating switch;
The 16th sense channel of the 16th pin correspondence of SCART interface is provided with second gating switch.
5. checkout gear as claimed in claim 4 is characterized in that, the 8 road circuit of LED of the 8th sense channel correspondence comprises: two common cathode light-emitting diodes;
Described the 8 road circuit of LED is connected with described first gating switch.
6. checkout gear as claimed in claim 4 is characterized in that, the 16 road circuit of LED of the 16th sense channel correspondence comprises: two common cathode light-emitting diodes;
Described the 16 road circuit of LED is connected with described second gating switch.
7. as each described checkout gear of claim 1-6, it is characterized in that also be provided with power interface on the described housing, described power interface is connected with external power source, for described checkout gear provides working power.
8. as each described checkout gear of claim 1-6, it is characterized in that the pin link of described sense channel comprises: audio frequency left and right acoustic channels input, audio frequency left and right acoustic channels output, R signal input part, G signal input part, B signal input part, composite video signal input, composite video signal output, function diverter switch I/O end, blanking signal I/O end, a plurality of earth terminal and communication data wire.
9. set-top box, comprising: have the shell of accommodation space, described shell is provided with the SCART interface, it is characterized in that:
Also be provided with the detection jack on the described shell, checkout gear is connected with the pin of described SCART interface by described detection jack.
10. set-top box as claimed in claim 9 is characterized in that, the pin link of described checkout gear is connected with the pin of described SCART interface by described detection jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200805657U CN202009467U (en) | 2011-03-24 | 2011-03-24 | Detector and set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200805657U CN202009467U (en) | 2011-03-24 | 2011-03-24 | Detector and set top box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202009467U true CN202009467U (en) | 2011-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200805657U Expired - Fee Related CN202009467U (en) | 2011-03-24 | 2011-03-24 | Detector and set top box |
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| CN (1) | CN202009467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959867A (en) * | 2016-10-14 | 2018-04-24 | 南宁富桂精密工业有限公司 | Signal generator and the set-top box with the signal invention device |
-
2011
- 2011-03-24 CN CN2011200805657U patent/CN202009467U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959867A (en) * | 2016-10-14 | 2018-04-24 | 南宁富桂精密工业有限公司 | Signal generator and the set-top box with the signal invention device |
| CN107959867B (en) * | 2016-10-14 | 2020-04-03 | 南宁富桂精密工业有限公司 | Signal generator and set top box with same |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN SKYWORTH DIGITAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SKY-WORTH DIGITAL TECHNOLOGY CO., LTD.;SHENZHEN CITY |
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| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong city of Shenzhen province Nanshan District Gao Xin Road Building A14, SKYWORTH Patentee after: Shenzhen Skyworth Digital Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District Gao Xin Road Building A14, SKYWORTH Patentee before: Shenzhen Skyworth Digital Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20160324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |