WO2015106615A1

WO2015106615A1 - Digital video condition reception apparatus

Info

Publication number: WO2015106615A1
Application number: PCT/CN2014/094038
Authority: WO
Inventors: 李艳荣; 林铠鹏; 余勇; 颜照明
Original assignee: 深圳国微技术有限公司
Priority date: 2014-01-15
Filing date: 2014-12-17
Publication date: 2015-07-23
Also published as: CN203661230U

Abstract

Disclosed is a digital video condition reception apparatus. The apparatus comprises a housing, a circuit board, a card base used for mounting an SIM card, and a connection port adapted to a corresponding socket of a television. The connection port is disposed on the outer side a first end of the housing in a protruding manner, and the card base is disposed on the inner side of a second end. The connection port and the card base are both welded and fixed on the circuit board, and are both in communication connection with the circuit board. The card base and the circuit board are mounted in the housing. The circuit board is fixedly connected to the housing. The connection port is a USB interface. The circuit board comprises an intelligent card interface, a descrambling module, and a USB processing module. The intelligent card interface is electrically connected to the descrambling module. The descrambling module is electrically connected to the USB processing module. The present utility model has a simple structure and a small size, needs low cost, and has good expandability and a wide application range.

Description

Digital video condition receiving device

Technical field

The utility model relates to the field of digital television, in particular to a digital video condition receiving device.

Background technique

The digital video condition receiving device is a digital television condition receiving module based on the PCMCIA interface, which realizes decryption of the encrypted digital signal and is used together with the smart card to insert the television through the PCMCIA interface, so that the user can directly watch the paid digital television content ordered without the set top box. However, the PCMCIA interface adopted by the existing conditional receiving device has a complicated structure, large size, and high cost, which makes the digital video condition receiving device bulky and high in production cost, and at the same time, the market share of the TV set with the PCMCIA interface currently on the market. The ratio is very small, and the digital video conditional receiving device with the PCMCIA interface is difficult to meet the market demand, which imposes restrictions on the use of the television.

The above content is only used to assist in understanding the technical solutions of the present invention, and does not constitute an admission that the above is prior art.

technical problem

The main purpose of the present invention is to provide a digital video condition receiving device, which aims to solve the problem that the PCMCIA interface adopted by the existing conditional receiving device has a complicated structure, large size, high cost, poor expandability, and narrow application range.

Technical solution

In order to achieve the above object, the present invention provides a digital video condition receiving device, which comprises a casing, a circuit board, a card holder for mounting a SIM card, and a connection port adapted to a corresponding socket of the television. The connecting port is protruded from the outer side of the first end of the housing, and the card holder is disposed on the inner side of the second end; the connecting port and the card holder are both soldered and fixed to the circuit board, and are all connected with the circuit board. The card holder and the circuit board are mounted inside the casing, the circuit board is fixedly connected to the casing; the connection port is a USB interface; the circuit board comprises a smart card interface and a descrambling module And a USB processing module, the smart card interface is electrically connected to the descrambling module, and the descrambling module is electrically connected to the USB processing module.

Preferably, the smart card interface is configured to insert a smart card, and the descrambling module is configured to determine whether a program stream transmitted from the television set is scrambled, and if the program stream is not scrambled, the descrambling module is Directly streaming the program to the USB processing module, and if the program stream is scrambled, the descrambling module cooperates with the local key stored on the smart card to descramble the scrambled program stream and Transmitting to the USB processing module, the USB processing module converts the unscrambled program stream or the descrambled program stream into a data stream conforming to the USB protocol, and transmits the data stream to a television set externally connected to the USB interface .

Preferably, the second end surface of the housing is provided with an opening for inserting the SIM card into the card holder, the housing includes an upper cover and a lower cover, and the upper cover is provided with at least one fastener. The cover is provided with at least one buckle corresponding to each of the fastener positions and buckled; the lower cover is provided with at least one first fixing post, and the circuit board is provided with each The first fixing post is corresponding in position and at least one first through hole is passed through the first fixing post.

Preferably, the digital video condition receiving device further includes an indicator light, the indicator light includes a connection base, an LED lamp and a light guide, the LED lamp is soldered on the circuit board, the light guide column and the LED light Adjacent to the inner side wall of the second end of the housing, the inner side wall of the second end of the housing is provided with at least one second fixing post, and the connecting seat is provided with each of the first a second through hole corresponding to the second fixing hole, and a second through hole for receiving the light guiding column at a position corresponding to the indicator light .

Preferably, the opening is provided with a jam covering the opening, and an inner side of the second end of the housing is provided with a fixing hole for fixing the plug, the jam is facing the card holder and close to the shell a soft rubber column inserted into the fixing hole and having an interference fit with the fixing hole is disposed on an end surface of the first side of the body, the jam facing the card seat and facing an end surface of the second side of the housing Or a connecting portion is provided on the side, the connecting portion is composed of an elastic material, and the connecting hole is provided with a connecting groove at a position corresponding to the connecting portion, and the connecting groove is matched with the connecting portion.

Preferably, a notch is formed at the second end of the housing, and the notch communicates with the second end surface of the housing and the opening.

Preferably, the upper cover is provided with at least two first bosses, and the lower cover is provided with at least two second bosses, and the first bosses abut the second bosses to fix the circuit board.

Preferably, the first bosses are evenly distributed on the edge of the upper cover, the second protrusions are evenly distributed on the edge of the lower cover, and at least one second boss is disposed adjacent to the first fixing column.

Preferably, the lower cover is provided with at least two hooks, the hook includes a body, and an extension extending from one end of the body, and the other end of the body is disposed on the lower cover. The extension portion abuts against an upper surface of the circuit board to hold the circuit board and the lower cover.

Preferably, the edge of the lower cover is provided with a convex opening, and the edge of the upper cover is provided with a concave opening adapted to the convex opening.

Beneficial effect

The digital video condition receiving device provided by the utility model replaces the PCMCIA interface by using a USB interface. Since the USB interface is a commonly used universal interface, the digital video condition receiving device has wider applicability and expandability; The USB interface has a simple structure, the manufacturing cost is much lower than the cost of the PCMCIA interface, and the production cost of the digital video conditional receiving device is reduced; the size of the USB interface is much smaller than the PCMCIA interface, so that the size of the digital video conditional receiving device is greatly reduced, and the structure thereof is more compact. And firm, and the cost is reduced again.

DRAWINGS

1 is a schematic structural view of an embodiment of a digital video condition receiving apparatus of the present invention;

2 is a schematic exploded view showing an embodiment of the digital video condition receiving apparatus of FIG. 1;

3A is a schematic diagram showing a first perspective structure of an upper cover according to an embodiment of the digital video condition receiving apparatus of the present invention;

3B is a schematic diagram showing a second perspective structure of an upper cover according to an embodiment of the digital video condition receiving apparatus of the present invention;

4A is a schematic structural view of a first viewing angle of a lower cover according to an embodiment of the digital video condition receiving apparatus of the present invention;

4B is a schematic diagram showing a second perspective structure of a lower cover according to an embodiment of the digital video condition receiving apparatus of the present invention;

5 is a partial enlarged structural diagram of an indicator light of the preferred embodiment of the digital video condition receiving apparatus of FIG. 2;

6 is a partial enlarged structural diagram of a hook of the preferred embodiment of the digital video condition receiving apparatus of FIG. 2;

FIG. 7 is a schematic diagram showing the circuit structure of a circuit board in an embodiment of the digital video condition receiving apparatus of the present invention.

The figure numbers in the drawings are as follows:

The housing 1, the upper cover 11, the lower cover 12, the fastener 111, the buckle seat 121, the circuit board 2, the first through hole 21, the first fixing post 22, the smart card interface 201, the descrambling module 202, and the USB processing module 203, Card holder 3, opening 31, connecting port 4, indicator lamp 5, connecting seat 51, second through hole 511, second fixing post 52, third through hole 53, light guiding rod 54, jam 6, soft rubber column 61, Fixing hole 62, connecting portion 63, connecting groove 64, notch 7, first boss 81, second boss 82, hook 9, body 91, extending portion 92, convex opening 101, concave opening 102.

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Embodiments of the invention

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Based on FIG. 1 and FIG. 2, in a preferred embodiment, the digital video condition receiving apparatus provided by the present invention comprises a housing 1, a circuit board 2, a card holder 3 for mounting a SIM card, and a corresponding socket for the television. The connecting port 4 is provided with a connecting port 4 on the outer side of the first end of the housing 1 , and a card holder 3 is disposed on the inner side of the second end of the housing 1 ; the connecting port 4 and the card holder 3 are both connected to the circuit The board 2 is soldered and fixed, and is connected in communication with the circuit board 2; the card holder 3 and the circuit board 2 are mounted inside the housing 1, and the circuit board 2 is fixedly connected to the housing 1. The connection port is a USB interface, and the circuit board 2 includes a smart card interface 201, a descrambling module 202, and a USB processing module 203. The smart card interface 201 is electrically connected to the descrambling module 202, and the descrambling module 202 and the USB are connected. The processing module 203 is electrically connected, and the SIM card can insert or eject the card holder 3 by a push-push method. Thus, by replacing the conventional PCMCIA interface with a USB interface, the digital video condition receiving device has wider applicability and expandability because the USB interface is a commonly used universal interface; The USB interface has a simple structure, the manufacturing cost is much lower than the cost of the PCMCIA interface, and the production cost of the digital video conditional receiving device is reduced; the size of the USB interface is much smaller than the PCMCIA interface, so that the size of the digital video conditional receiving device is greatly reduced, and the structure thereof is more compact. And firm, and the cost is reduced again.

Further, referring to FIG. 7, the smart card interface 201 is used for inserting a smart card, and the television with the USB interface first converts the undescrambled program stream into a data stream conforming to the USB protocol through the USB processing module 203, and then unsolved. The disturbed program stream is transmitted to the descrambling module 202, and the descrambling module 202 determines whether the program stream transmitted from the television set is scrambled. If the program stream is not scrambled, the descrambling module 202 directly Streaming the program to the USB processing module 203, if the program stream is scrambled, the descrambling module 202 cooperates with the local key stored on the smart card to descramble the scrambled program stream And transmitting to the USB processing module 203, the USB processing module 203 converts the unscrambled program stream or the descrambled program stream into a data stream conforming to the USB protocol, and transmits the data stream to the external tape USB interface. On the TV.

Further, referring to FIG. 2, FIG. 3A and FIG. 3B, the second end surface of the casing 1 is provided with an opening 31 for inserting the SIM card into the card holder 3, and the casing 1 includes an upper cover 11 and a lower portion. a cover 12, the upper cover 11 is provided with six fasteners 111, and the lower cover 12 is provided with six buckles 121 corresponding to the positions of the fasteners 111 and fastened and fitted; There are four first fixing posts 22 on the circuit board 2, and the circuit board 2 is provided with four first through holes corresponding to the positions of the first fixing posts 22 and through which the first fixing posts 22 pass. twenty one. Thus, the housing 1 is divided into two parts, an upper cover 11 and a lower cover 12, to facilitate loading the circuit board 2 and the card holder 3 into the interior of the housing 1, which improves assembly efficiency, and the upper cover 11 and the lower cover 12 pass. The fastening member 111 and the buckle base 121 are fastened and fixed to each other. By passing the first fixing post 22 through the first through hole 21 and positioning in the first through hole 21, the first fixing column 22 is realized. The fixing of the circuit board 2 causes the circuit board 2 to be fixedly connected to the inside of the casing 1, thereby improving the stability and reliability of the digital video condition receiving device from the inside out.

Further, referring to FIG. 2, FIG. 4A, FIG. 4B and FIG. 5, in order to further facilitate the user to observe and understand the working state of the digital video condition receiving device, the condition receiving device further includes an indicator light 5, and the indicator light 5 includes a connecting seat 51, an LED lamp and a light guiding rod 54, the LED lamp being soldered on the circuit board 2, the light guiding column 54 is in close proximity to the LED lamp, and the indicator light 5 is disposed in the housing 1 second On the inner side wall of the end, the second side of the second end of the housing 1 is provided with two second fixing posts 52, and the connecting base 51 is provided with a position corresponding to each of the second fixing posts 52, and is provided for The second fixing hole 52 passes through the two second through holes 511. The second end of the housing 1 is provided with a third through hole 53 for receiving the light guiding rod 54 corresponding to the position of the indicator light 5. In this way, the second through hole 511 is passed through the second fixing post 52, and the second fixing post 52 is welded to the second through hole 511, and the LED lamp is soldered on the circuit board 2 The light guiding column 54 is fixed in the third through hole 53. The light guiding column 54 is disposed beside the LED light, and the light guiding column 54 transmits the LED light through the diffuse reflection of the LED light by itself. To the outer surface of the light guiding rod 54 at the third through hole 53, thereby realizing the light indicating function. Through the above structure, the indicator light 5 is stably and firmly connected to the casing 1. The light signal of the LED lamp is clearly and uniformly displayed on the outer surface of the light guiding column, so that the signal of the indicator light 5 is The change indicates the operating state of the digital video condition receiving device, so that the user can determine the operation of the conditional receiving device very conveniently and quickly.

Further, referring to FIG. 2 and FIG. 3A, the opening 31 is provided with a plug 6 covering the opening 31, and the inner side of the second end of the housing 1 is provided with a fixing hole 62 for fixing the plug 6. a soft rubber post 61 is formed on the end surface of the plug 6 facing the card holder 3 and adjacent to the first side of the housing 1 and is inserted into the fixing hole 62 and has an interference fit with the fixing hole 62. a connecting portion 63 is formed on the end surface or side surface of the card holder 3 facing the card holder 3 and adjacent to the second side of the housing 1. The connecting portion 63 is composed of an elastic material, and the housing 1 is connected to the housing A corresponding groove 64 is provided at a corresponding position of the portion 63, and the connecting groove 64 is adapted to the connecting portion 63. Since the soft rubber column 61 is connected to the fixing hole 62, the end of the soft rubber column 61 near the inside of the housing 1 is configured as a truncated cone structure. After the soft rubber column 61 is inserted into the fixing hole 62, the soft rubber is The column 61 cannot be pulled out, and the soft rubber column 61 can move back and forth between the fixing hole 62 and the truncated cone structure. Since the connecting portion 63 is composed of an elastic material, the connecting portion 63 and the connecting portion 63 are The connecting slot 64 is snap-fitted. When the SIM card needs to be inserted or removed, the plug 6 is pulled out, and the connecting portion 63 is deformed and disengaged from the connecting slot 64. At this time, if the plug is pulled out 6. The soft rubber column 61 moves toward the outside of the casing 1 with the jam 6 . When moving to a certain time, the truncated cone structure of the soft rubber column 61 is in contact with the fixing hole 62 and is pressed against each other, thereby The soft rubber 61 column prevents the plug 6 from continuing to move to the outside of the housing 1, thereby preventing the plug 6 from being pulled out of the housing 1 and falling, so that when the plug 6 is closed, the SIM can be The card provides good shielding and protection, and allows the user to easily open and close the jam as needed.

Further, referring to FIG. 1 and FIG. 2, in order to facilitate opening the plug 6, a second end of the housing 1 is provided with a notch 7, the notch 7 communicating with the second end end of the housing 1 and the The opening 31, when the SIM card needs to be inserted or removed, the plug 6 can be opened by the notch 7, the SIM card can be inserted or removed, and then the plug 6 can be fastened, which makes the opening of the jam more convenient. .

Further, referring to FIG. 3A, FIG. 4A and FIG. 4B, in order to prevent the circuit board 2 from moving in the vertical direction of its plane, the stability of the circuit board 2 is improved, and at the same time, in order to avoid the upper cover 11 and the lower cover 12 being assembled The installation between the upper cover 11 and the lower cover 12 is facilitated without the occurrence of misalignment. The upper cover 11 is provided with fourteen first bosses 81, and the lower cover is provided with eight second bosses 82. The first boss 81 and the second boss 82 abut against the circuit board. When the upper cover 11 and the lower cover 12 are installed, the edge of the first boss 81 guides the edge of the lower cover 12 to be aligned with the edge of the upper cover 11, preventing the upper cover 11 and the lower cover 12 from being misaligned and uneven. At the same time, when the upper cover 11 and the lower cover 12 are mounted in position, the first boss 81 will press the circuit board 2 to prevent the circuit board 2 from loosening, and also prevent the upper cover 11 from excessively moving and squeezing the inside of the lower cover 12. . The second boss 82 is used to support the circuit board 2 to control the height of the circuit board 2.

Further, referring to FIG. 2 and FIG. 4A, in order to prevent the circuit board 2 from moving in various directions of its plane, the first bosses 81 are evenly distributed on the edge of the upper cover 11, and the second bosses 82 are evenly distributed. At the edge of the lower cover 12, the four second bosses 82 are disposed adjacent to the first fixing post 22, such that four first through holes 21 on the four corners of the circuit board 2 pass through respectively. The four first fixing posts 22 are sleeved with them, thereby restricting the movement of the circuit board 2 in various directions of its plane, the second boss 82 supports the circuit board 2, and the first boss 81 presses the circuit board 2. The movement of the circuit board 2 in the vertical direction of its plane is limited, thereby realizing the omnidirectional limiting motion and positioning of the circuit board 2.

Further, referring to FIG. 2 and FIG. 6 , the lower cover 12 is provided with four hooks 9 , the hook 9 includes a body 91 , and an extension 92 extending from one end of the body 91 , the body The other end of the 91 is disposed on the lower cover 12, and the extending portion 92 abuts against the upper surface of the circuit board 2 to hold the circuit board 2 and the lower cover 12, so that when the circuit After the board 2 is loaded into the lower cover 12, the hook 9 snaps the circuit board 2 and the lower cover 12 together, restricting the circuit board 2 from moving up and down in the vertical direction of the plane thereof, and preventing the circuit board 2 from loosening.

Further, see Figures 2, 3A and 3B The peripheral edge of the lower cover 12 is provided with a convex opening 101. The peripheral edge of the upper cover 11 is provided with a concave opening 102 adapted to the convex opening 101, when the upper cover 11 and the lower cover 12 are assembled. The convex opening 101 and the concave opening 102 can guide and position the upper cover 11 and the lower cover 12. When the upper cover 11 and the lower cover 12 are not aligned, the concave opening 102 and the convex opening 101 The sleeves 11 and the lower cover 12 can be prevented from being sleeved with each other. At the same time, since the projections 101 and the recesses 102 can be assembled and connected only when the edges of the upper cover 11 and the lower cover 12 are completely aligned, the projections are convex. The mouthpiece 101 and the recessed opening 102 can effectively prevent the misalignment between the upper cover 11 and the lower cover 12, and the positioning of the upper cover 11 and the lower cover 12 can be well guided, and the upper cover 11 and the lower cover are also provided. 12 is tightly sleeved together to prevent looseness between the upper cover 11 and the lower cover 12.

It should be understood that the above is only a preferred embodiment of the present invention, and thus the scope of the patent of the present invention may not be limited, and the equivalent structure or equivalent flow transformation made by the specification and the drawings of the present invention may be directly or Indirect use in other related technical fields is equally included in the scope of patent protection of the present invention.

Claims

A digital video condition receiving device, comprising: a housing, a circuit board, a card holder for mounting a SIM card, and a connection port adapted to a corresponding socket of the television, The connecting port is protruded from the outer side of the first end of the housing, and the card holder is disposed on the inner side of the second end; the connecting port and the card holder are both soldered and fixed to the circuit board, and are all connected with the circuit board. The card holder and the circuit board are mounted inside the casing, the circuit board is fixedly connected to the casing; the connection port is a USB interface; the circuit board comprises a smart card interface and a descrambling module And a USB processing module, the smart card interface is electrically connected to the descrambling module, and the descrambling module is electrically connected to the USB processing module.
The digital video condition receiving apparatus according to claim 1, wherein the smart card interface is configured to insert a smart card, and the descrambling module is configured to determine whether a program stream transmitted from the television is scrambled. The program stream is not scrambled, and the descrambling module directly transmits the program stream to the USB processing module. If the program stream is scrambled, the descrambling module is locally densely stored on the smart card. Key scrambling and descrambling the scrambled program stream to the USB processing module, the USB processing module converting the unscrambled program stream or the descrambled program stream into a data stream conforming to the USB protocol, and The data stream is transmitted to a television set externally connected to the USB interface.
The digital video condition receiving device according to claim 1, wherein the second end surface of the casing is provided with an opening for inserting the SIM card into the card seat, and the casing comprises an upper cover and a lower cover The upper cover is provided with at least one fastener, and the lower cover is provided with at least one buckle corresponding to the position of each fastener and buckled; the lower cover is provided with at least one first And a fixing column, wherein the circuit board is provided with at least one first through hole corresponding to each of the first fixing column positions and passing through the first fixing column.
A digital video condition receiving apparatus according to claim 3, further comprising an indicator light, said indicator light comprising a connector, an LED lamp and a light guide, said LED lamp being soldered on said circuit board, said The light guide column is adjacent to the LED lamp, the indicator light is disposed on the inner side wall of the second end of the housing, and the inner side wall of the second end of the housing is provided with at least one second fixing post on the connecting seat Providing at least one second through hole corresponding to each of the second fixing post positions and passing through the second fixing post, the second end of the housing is corresponding to the position of the indicator light to accommodate the The third through hole of the light guide column.
The digital video condition receiving device according to claim 3, wherein the opening is provided with a jam covering the opening, and an inner side of the second end of the housing is provided with a fixing hole for fixing the plug. a soft rubber column inserted into the fixing hole and interference fit with the fixing hole is disposed on an end surface of the latch facing the card seat and adjacent to the first side of the housing, the jam facing the a connecting portion is disposed on the end surface or the side surface of the second side of the housing, and the connecting portion is formed of an elastic material, and the connecting portion is provided with a connecting slot at a position corresponding to the connecting portion, A connecting groove is adapted to the connecting portion.
The digital video condition receiving device according to claim 5, wherein a notch is provided at the second end of the casing, and the notch communicates with the second end surface of the casing and the opening.
The digital video condition receiving device according to claim 3, wherein the upper cover is provided with at least two first bosses, and the lower cover is provided with at least two second bosses, the first protrusion The stage abuts the second boss to fix the circuit board.
A digital video condition receiving apparatus according to claim 7, wherein said first bosses are evenly distributed on said upper cover edge, said second projections are evenly distributed on said lower cover edge, and at least one The second boss is disposed adjacent to the first fixing post.
The digital video condition receiving device according to claim 3, wherein the lower cover is provided with at least two hooks, the hook comprises a body, and an extension extending from one end of the body, The other end of the body is disposed on the lower cover, and the extension portion abuts against an upper surface of the circuit board to hold the circuit board and the lower cover.
The digital video condition receiving device according to any one of claims 3 to 9, wherein the lower cover edge is provided with a convex stop, and the upper cover edge is provided with the convex stop. Concave mouth.