CN101728666B - Electronic card connector, electronic decoding device and digital television receiver - Google Patents
Electronic card connector, electronic decoding device and digital television receiver Download PDFInfo
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- CN101728666B CN101728666B CN2008101720112A CN200810172011A CN101728666B CN 101728666 B CN101728666 B CN 101728666B CN 2008101720112 A CN2008101720112 A CN 2008101720112A CN 200810172011 A CN200810172011 A CN 200810172011A CN 101728666 B CN101728666 B CN 101728666B
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Abstract
The invention relates to an electronic card connector, an electronic decoding device and a digital television receiver. Particularly, the electronic card connector is used for electrically connecting an electronic card and an electronic device and comprises an inserting slot and an actuating unit, wherein the inserting slot is used for inserting the electronic card and is provided with a power supply terminal for supplying power to the electronic card, and the actuating unit is arranged in the inserting slot; when the electronic card is inserted into the inserting slot but does not touch the actuating unit, the actuating unit enables a first power supply to be conducted with the power supply terminal; and when the electronic card is inserted into the inserting slot and touches the actuating unit, the actuating unit enables a second power supply to be conducted with the power supply terminal. The invention uses a push part of the actuating unit of the electronic card connector to judge or detect the attribute of the electronic card inserted into the inserting slot so as to correspondingly use the electronic cards with different power supplies to provide the proper power supplies for the electronic card and a related level converting device so as to achieve the efficacy and the purpose that the electronic decoding device and the digital television receiver using the electronic decoding device can receive different electronic cards.
Description
Technical field
The present invention relates to a kind of connector, particularly relate to a kind of electronic card coupler.
Background technology
Digital Television now or computer are if will watch digital television program, need built-in or a DTV receiver additionally is set, if and this DTV receiver will further be watched the code-locked pay channel, after then needing by the electronic decoder on the DTV receiver (practise and claim CI decoding electronic cards) pay channel in the digital television signal to be decoded again, just can watch pay channel.
CI decoding electronic cards is plugged in the slot of an electronic card coupler of DTV receiver usually, to be electrically connected and to accept power supply with interlock circuit in the DTV receiver by this electronic card coupler, and CI decoding electronic cards have use+5V or+branch of the electrical interface of two kinds of different electrical power of 3.3V, but Digital Television or computer terminal normally provide a kind of fixing power supply (+5V or+3.3V) give connector, so CI decoding electronic cards 2 of the CI of use+5V power supply as shown in Figure 1 decoding electronic cards 1 and use as shown in Figure 2+3.3V power supply, all must be in its CI decoding electronic cards 1, the different fool proof breach 10 of design on 2,20, and the corresponding fool proof slot of design on electronic card coupler, with prevent the user will use accidentally+CI of 3.3V power supply decoding electronic cards is inserted in and provides+electronic card coupler of 5V power supply on and burn, perhaps will use+the CI decoding electronic cards of 5V power supply is inserted in and provides+electronic card coupler of 3.3V power supply on and situation that generation can't be worked.
Yet, general user can not know usually electronic card coupler provide+5V still+the 3.3V power supply, to such an extent as under unwitting situation, bought decode electronic cards and can't using of the CI that uses power supply and power supply that electronic card coupler provides not to be inconsistent, therefore known electronic card coupler is also inconvenient for the user, remains to be improved.
Summary of the invention
A purpose of the present invention, mainly providing a kind ofly can provide the different power supply electronic card coupler to different electronic cards.
So, a kind of electronic card coupler of the present invention, in order to be electrically connected an electronic cards and an electronic installation, this electronic installation provides one first power supply and a second source, this electronic card coupler comprises: a slot supplies this electronic cards plant and comprises one in order to the power supply terminal of power supply to this electronic cards; An and actuating unit, be located at this slot, this electronic cards is inserted in this slot but when not touching this actuating unit, this actuating unit connects this first power supply and this power supply terminal, when this electronic cards was inserted in this slot and touches this actuating unit, this actuating unit connected this second source and this power supply terminal.
Wherein if this electronic cards is the electronic cards of this first power supply of use, when this electronic cards is inserted in this slot, can not touch this actuating unit, if this electronic cards is the electronic cards of this second source of use, when this electronic cards is inserted in this slot, can touch this actuating unit.
Preferably, this actuating unit comprises the yoke frame of being located at slot inside, one connects with this first power supply and an end can be subjected to a shell fragment of this yoke frame pushing tow separably, forward is connected first diode between this second source and this power supply terminal, a forward connects second diode of this shell fragment other end and this power supply terminal, this electronic cards is inserted in this slot but not during this yoke frame of pushing tow, this shell fragment and this first power supply connect, make this first power supply import this power supply terminal via this second diode, when this electronic cards is inserted in this slot and this yoke frame of pushing tow, this shell fragment is subjected to this yoke frame pushing tow and does not connect with this first power supply, makes this second source import this power supply terminal via this first diode.
In addition, preferably, this actuating unit also can by one be located at slot inner and outwards a yoke frame and of pushing tow formed by the sensitive switch of this yoke frame actuating, this sensitive switch is electrically connected with this power supply terminal, this first power supply and this second source respectively, this electronic cards is inserted in this slot but not during this yoke frame of pushing tow, this sensitive switch can make this power supply terminal and this first power supply connect, when this electronic cards was inserted in this slot and this yoke frame of pushing tow, this yoke frame touched this sensitive switch action and this power supply terminal and this second source is connected.
Wherein if this electronic cards is the electronic cards of this first power supply of use, and this yoke frame can be complementary with a fool proof breach of this electronic cards, make when this electronic cards is inserted in this slot, can this yoke frame of pushing tow, and if this electronic cards is the electronic cards of this second source of use, this yoke frame can not be complementary with this fool proof breach of this electronic cards, makes when this electronic cards is inserted in this slot, can this yoke frame of pushing tow.
Another object of the present invention, being to provide a kind of can provide suitable power supply to the electronic decoder that is inserted in the electronic cards on its electronic card coupler.
So a kind of electronic decoder of the present invention is suitable for being connected between the demodulating unit and decoding unit of a digital television signal, and comprises: above-mentioned electronic card coupler; One first level conversion unit is located between this demodulating unit and this electronic card coupler, and offers this electronic card coupler again behind the digital television signal level according to this demodulating unit output of power source conversion that this electronic cards is used; One second level conversion unit is located between this electronic card coupler and this decoding unit, becomes the manageable level of this decoding unit in order to the digital television signal level conversion with this electronic card coupler output; And one the 3rd level conversion unit, be located between this electronic card coupler and this decoding unit, in order to a control command that is transmitted between this electronic card coupler and this decoding unit is carried out level conversion, make this control command can send to this electronic card coupler or this decoding unit smoothly.
Another purpose of the present invention, being to provide a kind of can provide suitable power supply to being inserted in the electronic cards on its electronic card coupler and the DTV receiver of the circuit relevant with this electronic cards.
So a kind of DTV receiver of the present invention comprises a demodulating unit, in order to receive a digital television signal; One decoding unit is in order to decompress to this digital television signal; And above-mentioned electronic decoder, be located between this demodulating unit and this decoding unit, in order to after decoding, to export this decoding unit again to from the digital television signal of this demodulating unit.
Present embodiment is differentiated by the yoke frame of this actuating unit of electronic card coupler or is detected the attribute that is placed in the electronic cards in the slot, use the electronic cards of different electrical power to provide suitable power supply to reach relevant level conversion unit with correspondence, and reach effect and the purpose that the DTV receiver that makes electronic decoder and use this electronic decoder can be accepted different electronic cards to this electronic cards.
Description of drawings
Fig. 1 is the fool proof breach schematic diagram of the CI electronic cards of known use+5V power supply;
Fig. 2 is the fool proof breach schematic diagram of the CI electronic cards of known use+3.3V power supply;
Fig. 3 is the circuit diagram of a preferred embodiment of electronic decoder of the present invention; Power supply state when wherein showing the CI electronic cards that electronic card coupler plants use+5V power supply;
Power supply state when Fig. 4 shows the CI electronic cards that the electronic card coupler of present embodiment plants use+3.3V power supply; And
Fig. 5 shows another alternate embodiment of the actuating unit of present embodiment.
The primary clustering symbol description:
1,2CI electronic cards 3 electronic card couplers
4 electronic decoders, 5 DTV receiver
6 sensitive switches
10,20 fool proof breach, 30 power supply terminals
31 slots, 32 actuating units
33 conducting terminal groups, 34 yoke frames
35 shell fragments, 36 first diodes
37 second diodes, 41 first level conversion units
42 second level conversion units 43 the 3rd level conversion unit
341 fixture blocks, 51 demodulating units
52 decoding units, 61 operation strip
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in the detailed description of a following cooperation preferred embodiment with reference to the accompanying drawings, can clearly present.
Referring to Fig. 3 and Fig. 4, it is a preferred embodiment of electronic card coupler of the present invention, the electronic card coupler 3 of present embodiment is arranged in the electronic decoder 4, use for planting as a Fig. 1 or a CI electronic cards 2 shown in Figure 2, so that a digital television signal of importing in this electronic decoder 4 is carried out exporting after the decoding processing again, that is, as shown in Figure 3, in fact this electronic decoder 4 can be arranged in the DTV receiver (or set-top box) 5, in order to accept a demodulating unit (tuner) 51 digital television signals that received, and after this digital television signal decoded, export to again to make in the decoding unit 52 of rear end digital television signal is carried out follow-up decompression operation.
And because the electronic card coupler 3 of present embodiment can be accepted use one first power supply (+5V) the CI electronic cards 1 or as use one second source of Fig. 2 (+3.3V) CI electronic cards 2 as Fig. 1, and demodulating unit 51 is to use fixing power supply (being generally 3.3V) with decoding unit 52, therefore not necessarily the voltage with 1 use of CI electronic cards is identical, so if demodulating unit 51 when inequality, then needs to pass through suitable level conversion with decoding unit 52 handled signal levels and CI electronic cards.
Therefore, the electronic decoder 4 of present embodiment is except electronic card coupler 3, also comprise first level conversion unit 41 that is connected between demodulating unit 51 and the electronic card coupler 3, and be connected second level conversion unit 42 and the 3rd level conversion unit 43 between electronic card coupler 3 and the decoding unit 52.
First level conversion unit 41 is in order to the digital television signal level of conversion from demodulating unit 51 input electronic card couplers 3, the electronic cards that digital television signal can be inserted in the electronic card coupler 3 is accepted and processing, second level conversion unit 42 exports the digital television signal level of having decoded of decoding unit 52 to from electronic card coupler 3 in order to conversion, the 3rd level conversion unit 43 makes control command can send to electronic card coupler 3 or decoding unit 52 smoothly then in order to the control command that is transmitted between electronic card coupler 3 and this decoding unit 52 is carried out level conversion.
So, the input of first level conversion unit 41 except use second source (+3.3V), its output must corresponding different CI electronic cards select use+3.3V or+wherein a kind of power supply of 5V, and second and third level conversion unit 42,43 is except output use+3.3V power supply, its input must corresponding different CI electronic cards be selected to use 3.3V or wherein a kind of power supply of 5V, just can carry out level conversion.
Therefore, in order to achieve the above object, the electronic card coupler 3 of present embodiment mainly comprises a slot 31 and an actuating unit 32.
As shown in Figure 3, slot 31 1 sides are provided with a plurality of conducting terminals (following general designation conducting terminal group 33), when the CI electronic cards is inserted in slot 31, can be electrically connected and transmission signals with first, second and third level conversion unit 41,42,43 by conducting terminal group 33.And comprise also in the conducting terminal group 33 that one gives the power supply terminal 30 of CI electronic cards and first, second and the 3rd level conversion unit 41,42,43 in order to power supply.
Actuating unit 32 comprises a yoke frame 34 of being located at slot 31 inside, one separably with first power supply (+5V) connect and an end is subjected to the shell fragment 35 of yoke frame 34 pushing tows, forward be connected second source (+3.3V) and 36, one forwards of first diode between the power supply terminal 30 connect second diode 37 of shell fragment 35 other ends and power supply terminal 30.
At this of particular note, for convenience of description, Fig. 3 and Fig. 4 only are in a schematic way but not actual configuration is represented the degree of depth of fool proof breach 10,20 of CI electronic cards 1,2 and the height of fixture block 341, so that both matching relationships to be described, then can be as for the physical location and the structure thereof of fool proof breach 10,20 with reference to Fig. 1 and Fig. 2.
By this, as shown in Figure 3, when CI electronic cards 1 is inserted in slot 31, because its fool proof breach 10 matches with the fixture block 341 of yoke frame 34, so can pushing tow yoke frame 34, so shell fragment 35 can with first power supply (+5V) connect, and make first power supply (+5V) via the shell fragment 35 and second diode 37 offer power supply terminal 30 and be connected with power supply terminal 30 first, second and third level conversion unit 41,42,43, at this moment, the N pole tension of first diode 36 (+5V) greater than the P pole tension (+3.3V), so not conducting, and limit first power supply (+3.3V) enter power supply terminal 30.
Therefore, the level of the digital television signal that first level conversion unit 41 can transmit demodulating unit 51 by+3.3V be converted to+5V after, give CI electronic cards 1 by electronic card coupler 3 again, and by second and third level conversion unit 42,43 respectively with the digital television signal of CI electronic cards 1 output and control command level by+5V convert to+3.3V after, deliver to the decoding unit 52 of rear end again, make electronic decoder 4 reach the purpose of accepting CI electronic cards 1.
Moreover, as shown in Figure 4, when using CI electronic cards 2 to be placed in the slot 31, because the fool proof breach 20 of CI electronic cards 2 does not match with the fixture block 341 of yoke frame 34, so in CI electronic cards 2 is inserted slot 31 and when conducting terminal group 33 directions move, yoke frame 34 can be subjected to the front end pushing tow of CI electronic cards 2, yoke frame 34 1 ends are outwards protruded and pushing tow shell fragment 35, shell fragment 35 and first power supply (+5) are not connected, therefore, when CI electronic cards 2 is plugged on slot 31 fully and connects with conducting terminal group 33, this moment first diode 36 by forward conduction and make second source (+3.3) can offer power supply terminal 30 and be connected with power supply terminal 30 first, second and third level conversion unit 41,42,43.
And owing to CI electronic cards 2 and demodulating unit 51 and decoding unit 52 all are to use the power supply of same level at this moment, therefore, first, second and third level conversion unit 41,42,43 can allow digital television signal directly by and need not carry out level conversion, make electronic decoder 4 reach the purpose of accepting CI electronic cards 2.
What deserves to be mentioned is, the above-mentioned mechanism that connects or do not connect with the yoke frame 34 control shell fragments 35 and first power supply, also can realize by known a kind of closed type sensitive switch (figure does not show), that is when yoke frame 34 does not touch this sensitive switch, the sensitive switch perseverance close and with first power supply (+5V) perseverance connects to power supply terminal 30, when yoke frame 34 touches these sensitive switches, sensitive switch with first power supply (+5V) disconnect with power supply terminal 30.
In addition, as shown in Figure 5, the actuating unit 32 of present embodiment also can be realized by the another kind of sensitive switch 6 of yoke frame 34 collocation, that is sensitive switch 6 has COM end, an a contact, a b contact and an operation strip 61, the COM end connects power supply terminal 30, the a contact connect first power supply (+5V), the b contact connect a second source (+3.3V), and operation strip 61 1 ends are connected with the COM end, the permanent a of connection of other end contact touches sensitive switch 6 up to yoke frame 34, just can make the operation strip other end connect the b contact, reach the purpose of between two power supplys, switching by this.
In sum as can be known, present embodiment is differentiated by the yoke frame 34 of actuating unit 32 or is detected the attribute that is placed in the electronic cards in the slot 31, use the electronic cards of different electrical power to provide suitable power supply to reach relevant level conversion unit with correspondence, and reach effect and the purpose that makes electronic decoder 4 can accept different CI electronic cards to this electronic cards.
The above-described content of thought, it only is preferred embodiment of the present invention, can not limit scope of the invention process with this, promptly every simple equivalent variations and modification of being done according to claims scope of the present invention and invention description content all still belongs in the scope that patent of the present invention contains.
Claims (4)
1. electronic card coupler, in order to be electrically connected an electronic cards and an electronic installation, described electronic installation provides one first power supply and a second source, and described electronic card coupler comprises:
One slot is planted for described electronic cards, and comprises one in order to the power supply terminal of power supply to described electronic cards; And
One actuating unit, be located at described slot, described electronic cards is inserted in described slot but when not touching described actuating unit, described actuating unit connects described first power supply and described power supply terminal, when described electronic cards was inserted in described slot and touches described actuating unit, described actuating unit connected described second source and described power supply terminal;
Wherein, described actuating unit comprises the yoke frame of being located at slot inside, one separably with described first power supply lead by and an end can be subjected to a shell fragment of described yoke frame pushing tow, forward is connected first diode between described second source and the described power supply terminal, a forward connects second diode of the described shell fragment other end and described power supply terminal, described electronic cards is inserted in described slot but not during the described yoke frame of pushing tow, described shell fragment and described first power supply connect, make described first power supply import described power supply terminal via described second diode, when described electronic cards is inserted in the described yoke frame of described slot and pushing tow, described shell fragment is subjected to described yoke frame pushing tow and does not connect with described first power supply, makes described second source import described power supply terminal via described first diode.
2. electronic card coupler according to claim 1, wherein if described electronic cards is the electronic cards of described first power supply of a use, when described electronic cards is inserted in described slot, can not touch described actuating unit, if described electronic cards is the electronic cards of the described second source of a use, when described electronic cards is inserted in described slot, can touch described actuating unit.
3. electronic card coupler according to claim 1, wherein said actuating unit comprise be located at slot inner and outwards a yoke frame and of pushing tow can be subjected to the sensitive switch of described yoke frame actuating, described sensitive switch respectively with described power supply terminal, described first power supply and described second source are electrically connected, described electronic cards is inserted in described slot but not during the described yoke frame of pushing tow, described sensitive switch can make described power supply terminal and described first power supply connect, when described electronic cards was inserted in the described yoke frame of described slot and pushing tow, described yoke frame touched described sensitive switch action and described power supply terminal and described second source is connected.
4. electronic card coupler according to claim 1, wherein if described electronic cards is the electronic cards of described first power supply of a use, and described yoke frame can be complementary with a fool proof breach of described electronic cards, make when described electronic cards is inserted in described slot, can the described yoke frame of pushing tow, and if described electronic cards is the electronic cards of the described second source of a use, described yoke frame can not be complementary with the described fool proof breach of described electronic cards, make when described electronic cards is inserted in described slot, can the described yoke frame of pushing tow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101720112A CN101728666B (en) | 2008-10-27 | 2008-10-27 | Electronic card connector, electronic decoding device and digital television receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101720112A CN101728666B (en) | 2008-10-27 | 2008-10-27 | Electronic card connector, electronic decoding device and digital television receiver |
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| Publication Number | Publication Date |
|---|---|
| CN101728666A CN101728666A (en) | 2010-06-09 |
| CN101728666B true CN101728666B (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101720112A Active CN101728666B (en) | 2008-10-27 | 2008-10-27 | Electronic card connector, electronic decoding device and digital television receiver |
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| CN (1) | CN101728666B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5450365A (en) * | 1993-05-20 | 1995-09-12 | Fuji Photo Film Co., Ltd. | Memory card control device |
| US5627416A (en) * | 1995-07-21 | 1997-05-06 | Itt Corporation | Multi-voltage IC card host |
| CN2383223Y (en) * | 1999-07-08 | 2000-06-14 | 富士康(昆山)电脑接插件有限公司 | Edge connector |
| US6148347A (en) * | 1996-11-20 | 2000-11-14 | Cisco Technology, Inc. | Mode selectable memory controller for PCMCIA standard memory cards and non-standard memory cards |
| US6753758B2 (en) * | 2001-01-03 | 2004-06-22 | Gerald Adolph Colman | System and method for switching voltage |
-
2008
- 2008-10-27 CN CN2008101720112A patent/CN101728666B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5450365A (en) * | 1993-05-20 | 1995-09-12 | Fuji Photo Film Co., Ltd. | Memory card control device |
| US5627416A (en) * | 1995-07-21 | 1997-05-06 | Itt Corporation | Multi-voltage IC card host |
| US6148347A (en) * | 1996-11-20 | 2000-11-14 | Cisco Technology, Inc. | Mode selectable memory controller for PCMCIA standard memory cards and non-standard memory cards |
| CN2383223Y (en) * | 1999-07-08 | 2000-06-14 | 富士康(昆山)电脑接插件有限公司 | Edge connector |
| US6753758B2 (en) * | 2001-01-03 | 2004-06-22 | Gerald Adolph Colman | System and method for switching voltage |
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| Publication number | Publication date |
|---|---|
| CN101728666A (en) | 2010-06-09 |
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