CN201181976Y - A viewing card holder for a digital TV receiving terminal - Google Patents
A viewing card holder for a digital TV receiving terminal Download PDFInfo
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- CN201181976Y CN201181976Y CNU2008200931268U CN200820093126U CN201181976Y CN 201181976 Y CN201181976 Y CN 201181976Y CN U2008200931268 U CNU2008200931268 U CN U2008200931268U CN 200820093126 U CN200820093126 U CN 200820093126U CN 201181976 Y CN201181976 Y CN 201181976Y
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- receiving terminal
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Abstract
本实用新型提供一种数字电视接收终端的收视卡卡座，包括卡座体和电路板，所述电路板具有电接口，所述电路板置于所述卡座体内，所述电接口设置于卡座体的外表面，所述收视卡为IC芯片，所述卡座体内设置有与所述IC芯片对应的卡槽，所述IC芯片通过所述电接口与所述电路板电性连接。本实用新型提供的数字电视接收终端的收视卡卡座采用IC芯片，在其卡座体上设置IC芯片对应的卡槽，通过电接口将IC芯片接收的数字电视信号传递至接收终端。IC芯片在尺寸上更小巧，使得卡座的体积较小巧，因此该数字电视接收终端的收视卡卡座尤其适于应用在移动数字电视的接收终端上。
The utility model provides a viewing card holder of a digital TV receiving terminal, which comprises a holder body and a circuit board, the circuit board has an electrical interface, the circuit board is placed in the holder body, and the electrical interface is arranged on On the outer surface of the card holder body, the viewing card is an IC chip, and a card slot corresponding to the IC chip is arranged in the card holder body, and the IC chip is electrically connected to the circuit board through the electrical interface. The viewing card holder of the digital TV receiving terminal provided by the utility model adopts an IC chip, and a card slot corresponding to the IC chip is arranged on the card holder body, and the digital TV signal received by the IC chip is transmitted to the receiving terminal through an electrical interface. The IC chip is smaller in size, so that the card holder is smaller in size, so the viewing card holder of the digital TV receiving terminal is especially suitable for application in a mobile digital TV receiving terminal.
Description
Technical field
The utility model belongs to digital TV terminal equipment, relates in particular to a kind of viewing card deck of receiving terminal for digital television.
Background technology
Increasing at present area, as Guangdong, Shanghai, digital television program has been opened on ground such as Beijing successively.Watch that by viewing card the mode of Digital Television mainly contains three kinds.
First kind of mode is based on the scheme of USB interface, and this scheme comprises the usb host interface of digital television receiver end and as USB Conditional Access Module two parts of equipment end.This scheme circuit complexity needs a controllers built-in special use, two SPI interfaces, owing to do not form industrialization, this controller costs an arm and a leg; Simultaneously, bigger as the volume ratio of the USB Conditional Access Module of equipment end, be unfavorable for the connection of other interface.
The second way is based on the scheme of PCMCIA (Personal Computer Memory Card InternationalAssociation, PCMCIA (personal computer memory card international association)) card, is commonly called as " kilocalorie " scheme.This scheme will have the condition reception descrambling/decryption portion of set-top box now and separate from receiver, constitute a functional module that physically is independent of set-top box, using 16 slots to count pcmcia interface with 68 pin is connected, block mid-have powerful arithmetic element and internal memory, can be with CA (Condition Access, the condition reception) descrambler under the system management, after related software such as customer account management and deciphering all writes in the pcmcia card, by and receiving terminal between general-purpose interface, with above-mentioned be in the slot of CA module insertion machine top box of core with the pcmcia card, reach the effect that CA system and set-top box are separated fully.The interface deck of this scheme is divided into: individual layer deck and double-deck deck.This scheme has the advantage that receiving terminal is researched and developed and production cost is low and the standard operation amount is little, but volume is big, and the shared plate face area and the space of complete machine are all very big.
The third mode is based on soft how close (Multicript) scheme of lesser calorie (SMART IC), be commonly called as " lesser calorie " scheme, be also referred to as the scheme that soft or hard is separated, promptly adopt the API (application programming interfaces) of unified standard that the hardware and the application software of rating terminal are isolated, make the rating end product in " bare machine " mode, with online mode loading application software (comprising CA), the CA module of rating terminal portable different manufacturers, the user can be by enabling the CA module of different manufacturers with different IC-cards.Based on all production in a large number, the listings comprehensively of several at home big main flow set-top box producer of the scheme of SMART IC-card.The advantage of this scheme is that circuit is simple, and cost is low, and security performance is good.The interface deck also is divided in this scheme: individual layer IC-card seat and double-deck IC-card seat, its deficiency is that deck thickness is big, easily takies the plate face.
Above-mentioned three kinds of schemes mentioning because the deck volume is big, for as mobile digital TVs such as mobile TV, hand held television, mobile televisions, are considered from links such as product design, size, space and technologies, are not suitable for the deck as its viewing card.
The utility model content
The purpose of the utility model embodiment is to provide a kind of TV card deck of receiving terminal for digital television, to such an extent as to be intended to solve in the prior art because the deck volume is not suitable for the problem of reception of Mobile Digital TV terminal greatly.
In order to solve the problems of the technologies described above, the utility model provides a kind of viewing card deck of receiving terminal for digital television, comprise deck body and circuit board, described circuit board has electrical interface, described circuit board places in the described deck body, and described electrical interface is arranged at the outer surface of deck body, and described viewing card is the IC chip, be provided with in the described deck body and the corresponding draw-in groove of described IC chip, described IC chip electrically connects by described electrical interface and described circuit board.
The viewing card deck of the receiving terminal for digital television that the utility model provides adopts the IC chip, and the draw-in groove of IC chip correspondence is set on its deck body, by electrical interface the digital television signal that the IC chip receives is passed to receiving terminal.The IC chip is smaller and more exquisite dimensionally, makes that the volume of deck is smaller and more exquisite, so the viewing card deck of this receiving terminal for digital television is particularly suited for being applied on the receiving terminal of mobile digital TV.
Description of drawings
Fig. 1 is the viewing card deck structural representation of a kind of receiving terminal for digital television of providing of the utility model embodiment;
Fig. 2 is the circuit diagram that viewing card that the utility model embodiment provides is connected with circuit board by electrical interface.
Embodiment
In order to make the technical problems to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of viewing card deck of receiving terminal for digital television, comprises deck body 1 and circuit board (not shown), and circuit board has electrical interface, circuit board places in the deck body 1, and electrical interface is arranged at the outer surface of deck body 1.Wherein, viewing card is that (IntegratedCircuit, IC) chip are provided with the draw-in groove 11 of IC chip correspondence to integrated circuit in the deck body 1, during use, the IC chip inserts in the draw-in groove 11 by electrical interface and circuit board electric connection.
Particularly, the insertion mouth of draw-in groove 11 is arranged at the side of deck body 1, and in draw-in groove 11 spring 12 is set, and the flexible direction of spring 12 is the length direction of draw-in groove 11.During use,, insert the IC chip, the IC chip is pressed in the draw-in groove 11 in the side of deck body 1 as magazine SD card plug-in card mode; And when taking out the IC chip, push an end that only needs to aim at the IC chip, utilizes the elastic force of spring 12, card is ejected, thereby take out the IC chip easily.This mode of suppressing is saved the slot space, has solved the trouble of getting SIM card in prior art such as the mobile phone, when getting SIM card in the mobile phone, needs usually to take out battery, opens the pressing plate of draw-in groove again, takes out SIM card from draw-in groove.
The outer surface of deck body 1 is coated with layer of metal shell 13, is provided with paster pin 14 in the bottom of metal-back 13.After paster pin 14 ground connection, can utilize 13 pairs of decks of metal-back of parcel to play shielding action.
The outer surface of deck body 1 is provided with two groups of electrical interfaces 2, and wherein first group of electrical interface 21 is arranged at the upper surface of deck body 1, and this electrical interface 21 is a conductive contact blade; Second group of electrical interface 22 is arranged at the side of deck body 1, and this electrical interface 22 is a metal ferrule.
In addition, also be provided with the direction sign 16 of placing viewing card in the surface of deck body 1.Like this, during user's plug-in card, can utilize direction sign 16 to insert viewing card exactly.And first group of electrical interface 21 is divided into two and arranges and put, and is provided with description of product board 15 in the middle of two row's conductive contact blades, is used to indicate product information.
The circuit that the viewing card that the utility model embodiment provides is connected with circuit board by electrical interface for convenience of explanation, only shows the part relevant with the utility model as shown in Figure 2, and existing details are as follows:
When viewing card inserted in draw-in groove 11,8 contacts in the viewing card were connected with circuit board by electrical interface, and electrical interface is connected with main process chip, and viewing card and main process chip communicate by electrical interface, are shown to the user after digital television signal is handled.Wherein, circuit board is a printed circuit board (PCB), and single sided board gets final product; And electrical interface adopts is serial ports, because the pin number amount of serial ports will be less than the pin position, parallel port that prior art is used, therefore also makes the volume of deck can design forr a short time.8 pin positions (being arranged in order from lower to upper in second group of electrical interface 22 shown in Figure 1) to this serial ports are defined as follows:
C1 (Vcc): chip power ,+4.75～5.25V, maximum current 200MA;
C5 (GND): ground;
C2 (RST): the chip reset signal is generally provided by receiver (draw-in groove interface);
C6 (VPP):, be idle condition when non-programming state by programming or the erasing voltage that draw-in groove provides;
C3 (CLK): the chip operation clock, provide by the draw-in groove interface, can be the initial clock of card when answering reset signal, also can be the clock of using instead when transmitting subsequently;
C7 (I/O): the input of card data, output, usual (when free of data transmission or both sides are in accepting state) is in high level state, can move low level state to by data output side;
Keep the C4 that uses and different special-purposes is arranged in dissimilar cards with C8.
When deck was installed on receiving terminal for digital television, the conductive contact blade by first group of electrical interface 21 transmitted the main process chip 3 of digital television signal to the receiving terminal for digital television.And the metal ferrule of second group of electrical interface 22 can be used as other peripheral circuits selection uses.
And 8 contacts in the viewing card are corresponding with C1, C2, C3, C4, C5, C6, C7, C8 in the electrical interface respectively: wherein, C1, C5 are the working power of IC chip, and (+4.75～5.25V) are connected C1 with IC chip power Vcc; C5 ground connection; C2 is a reset contact, and RST is connected with IC chip reset signal; C3 is the clock contact, is connected with the work clock CLK of IC chip; C6 is connected with programming or erasing voltage VPP, is idle condition when non-programming state; C7 is a data contact, is connected with data input, output (I/O) end; C4 and C8 have different special-purposes for keeping the position in dissimilar cards.C9 and C10 then are power supply, and C9 is connected C10 ground connection by resistance with VDD (direct voltage of 2.7V～5.5V).
In the present embodiment, electrical interface in the receiving terminal for digital television is the low-cost interface IC of 73S8024R that adopts TDK company, this chip is the world-leading condition reception solution at the fail safe of pay TV content delivery, moves with the IC chip, and operating frequency can reach 13.5MHz.Be in operation, TDK 73S8024R intelligent card interface becomes the analog signal that can be discerned by smart card with the digital signal transition in the main frame, and vice versa.This interface also provides the extra card defencive function, so that prevent hardware fault, and guarantees promptly to make card be in non-activation situation when card extraction, card overcurrent, supply voltage fault, LDO pressurizer fault and device are overheated.
The viewing card of the viewing card deck of the receiving terminal for digital television that the utility model provides adopts the IC chip, and the draw-in groove of IC chip correspondence is set on its deck body, by electrical interface the digital television signal that the IC chip receives is passed to receiving terminal.Compare with pcmcia card of the prior art, USB card and IC-card etc., the IC chip is smaller and more exquisite dimensionally, and like this, the draw-in groove on the deck body can be done forr a short time, correspondingly, makes that the volume of deck is smaller and more exquisite.Therefore the viewing card deck of this receiving terminal for digital television is particularly suited for being applied on the receiving terminal of mobile digital TV.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200931268U CN201181976Y (en) | 2008-03-31 | 2008-03-31 | A viewing card holder for a digital TV receiving terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200931268U CN201181976Y (en) | 2008-03-31 | 2008-03-31 | A viewing card holder for a digital TV receiving terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181976Y true CN201181976Y (en) | 2009-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200931268U Expired - Fee Related CN201181976Y (en) | 2008-03-31 | 2008-03-31 | A viewing card holder for a digital TV receiving terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181976Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506858A (en) * | 2014-11-28 | 2015-04-08 | 惠州大亚湾浦锐斯顿电子有限公司 | Smart card testing device for set-top box |
| CN108844563A (en) * | 2018-06-15 | 2018-11-20 | 成都维客亲源健康科技有限公司 | A kind of pluggable photosensor structure based on SIM card structure |
-
2008
- 2008-03-31 CN CNU2008200931268U patent/CN201181976Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506858A (en) * | 2014-11-28 | 2015-04-08 | 惠州大亚湾浦锐斯顿电子有限公司 | Smart card testing device for set-top box |
| CN108844563A (en) * | 2018-06-15 | 2018-11-20 | 成都维客亲源健康科技有限公司 | A kind of pluggable photosensor structure based on SIM card structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20150331 |
|
| EXPY | Termination of patent right or utility model |