Set top box assembly and set top box

Abstract

The utility model provides a set top box assembly and a set top box, the set top box comprises an AV socket assembly arranged at the edge of a printed board of the set top box, the AV socket assembly comprises an AV jack and a contact metal part, and the contact metal part is arranged at the rear end of the AV jack and is used for being in contact with a plug of an AV connecting line when the plug of the AV connecting line is completely inserted. The printed board comprises a control unit which can determine the plugging state between the plug of the AV connecting line and the AV jack according to the change of the voltage of the contact metal part after the plug of the AV connecting line is plugged into the AV jack. When the set top box assembly or the set top box provided by the embodiment of the utility model is selected, the change of the plugging state of the AV plug can be determined at the first time when the AV plug is loosened, so that the reminding information can be quickly and accurately given based on the plugging state of the AV plug; therefore, the user can rapidly and accurately carry out troubleshooting and fault maintenance when seeing a poor picture.

Description

Technical Field

[0001] The present application relates to the field of audio and video technology, and in particular to a set-top box assembly and a set-top box. Background Art

[0002] In the field of audio and video technology, a set-top box is a device that connects a display device to an external signal source, and can convert compressed digital signals into content that can be displayed by the display device and display it on the display device. Usually, an AV (Audio Video) signal line is used to transmit the signal sent by the device with an external signal source. In actual use, there is a situation where the connection between the AV signal line plug and the socket of the set-top box is loose, resulting in abnormal signal transmission, and further abnormal display content.

[0003] In order to solve the problem of loose connection between the AV signal line plug and the socket of the set-top box, the related art proposes to perform plug-in detection on the connection between the two, and can remind the user that the connection between the two is loose according to the plug-in detection result. The plug-in detection means used in the prior art depends on a certain pin (also called pin) in the socket of the set-top box. Specifically, a pin for plug-in detection is set inside the socket, or a pin is designated inside the socket for plug-in detection. By obtaining the voltage on the pin, it is determined whether there is a loose connection between the AV signal line plug and the socket of the set-top box.

[0004] However, this plug-in detection method relies on the pin used for plug-in detection. If the AV signal line of the set-top box is actually loose, but the loose displacement does not cause the pin connection to be disconnected, the plug-in detection result will be: no looseness. This is likely to cause errors in the plug-in detection result, which is not conducive to troubleshooting when users see poor images. Utility Model Content

[0005] In view of this, the embodiments of the present application provide a set-top box assembly and a set-top box to solve the problem that the plug-in and unplug detection means in the existing set-top box cannot accurately perform plug-in and unplug detection.

[0006] In a first aspect, an embodiment of the present application provides a set-top box assembly, the set-top box assembly comprising:

[0007] A set-top box and an AV connecting cable, wherein the set-top box comprises an AV socket assembly, the AV socket assembly is arranged at the edge of a target printed circuit board of the set-top box, the AV socket assembly comprises: an AV jack and a contact metal component, the contact metal component is arranged at the rear end of the AV jack, the front end of the AV jack is located at the edge of the target printed circuit board, and the contact metal component is used to contact the plug of the AV connecting cable after the plug of the AV connecting cable is fully inserted into the AV jack;

[0008] The target printed circuit board of the set-top box comprises: a control unit, which is used to determine the plug-in and pull-out status between the plug of the AV connection line and the AV jack according to the voltage change of the contact metal component.

[0009] Optionally, the contact metal component is parallel to the edge of the target printed circuit board and perpendicular to the printed circuit board, and the distance from the edge of the target printed circuit board is less than or equal to the length of the conductive contact portion of the plug of the AV connecting cable.

[0010] Optionally, the control unit is specifically used for:

[0011] If the voltage on the contact metal component changes from a high level to a low level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: disconnected state;

[0012] If the voltage on the contact metal component changes from a low level to a high level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: a connected state.

[0013] Optionally, the contact metal component is a contact key switch, wherein one end of the contact key switch is grounded, and the other end is connected to a preset signal pin of the control unit, and the control unit is specifically used for:

[0014] If the voltage on the preset signal pin changes from a low level to a high level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: disconnected state;

[0015] If the voltage on the preset signal pin changes from a high level to a low level, it is determined that the plugging and unplugging state between the plug of the AV connecting cable and the AV jack is: a connected state.

[0016] Optionally, the rear end of the AV jack includes a hollow area, and after the plug of the AV connecting cable is fully inserted into the AV jack, it passes through the hollow area and contacts the contact metal component.

[0017] In a second aspect, the present application provides a set-top box, the set-top box comprising: a printed circuit board, an AV socket assembly, the AV socket assembly being arranged at a target printed circuit board edge of the printed circuit board, the AV socket assembly comprising: an AV jack, a contact metal component, the contact metal component being arranged at a rear end of the AV jack, the front end of the AV jack being located at the target printed circuit board edge, the contact metal component being used to contact the plug of the AV connection line after the plug of the AV connection line is fully inserted into the AV jack;

[0018] The printed circuit board comprises: a control unit, and the control unit is used to determine the plug-in and pull-out status between the plug of the AV connection line and the AV jack according to the voltage change of the contact metal component.

[0019] Optionally, the contact metal component is parallel to the edge of the target printed circuit board and perpendicular to the printed circuit board, and the distance from the edge of the target printed circuit board is less than or equal to the length of the plug portion of the AV connecting cable.

[0020] Optionally, the control unit is specifically used for:

[0021] If the voltage on the contact metal component changes from a high level to a low level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: disconnected state;

[0022] If the voltage on the contact metal component changes from a low level to a high level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: a connected state.

[0023] Optionally, the contact metal component is a contact key switch, wherein one end of the contact key switch is grounded, and the other end is connected to a preset signal pin of the control unit, and the control unit is specifically used for:

[0024] If the voltage on the preset signal pin changes from a low level to a high level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: disconnected state;

[0025] If the voltage on the preset signal pin changes from a high level to a low level, it is determined that the plugging and unplugging state between the plug of the AV connecting cable and the AV jack is: a connected state.

[0026] Optionally, the rear end of the AV jack includes a hollow area, and after the plug of the AV connecting cable is fully inserted into the AV jack, it passes through the hollow area and contacts the contact metal component.

[0027] Beneficial effects of this application:

[0028] The present application provides a set-top box assembly and a set-top box, wherein the set-top box includes an AV socket assembly arranged at the edge of a printed circuit board of the set-top box, the AV socket assembly includes an AV jack and a contact metal component, the contact metal component is arranged at the rear end of the AV jack, and is used to contact the plug of the AV connecting line when the plug of the AV connecting line is fully inserted. The printed circuit board includes a control unit, which can determine the plug-in and unplug state between the plug of the AV connecting line and the AV jack according to the voltage change of the contact metal component after the plug of the AV connecting line is inserted into the AV jack.

[0029] By selecting the embodiment of the present application, the method of using a signal of a Pin in the AV jack to detect the plug-in status, which is commonly used in the prior art, is abandoned, and a contact metal component is set at the rear end of the AV jack. When the AV plug is fully inserted into the AV jack, the amount of charge on the contact metal component will change, thereby changing the voltage of the contact metal component. When the AV plug becomes loose, since the contact metal component is located at the rear end of the AV plug, the contact between the AV plug and the contact metal component will be disconnected at the first time, and the voltage on the contact metal component will also change at the first time. Based on this, the set-top box assembly or set-top box provided by the embodiment of the present application can be selected to determine that the plug-in status of the AV plug has changed at the first time when the AV plug is loose, which helps to quickly and accurately give reminder information based on the plug-in status of the AV plug, which is beneficial for users to quickly and accurately perform troubleshooting and fault maintenance when seeing poor pictures. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Further details, features and advantages of the present application are disclosed in the following description of exemplary embodiments in conjunction with the accompanying drawings, in which:

[0031] Figure 1 A schematic diagram of the structure of a set-top box assembly provided in an embodiment of the present application is shown;

[0032] Figure 2 A schematic diagram of the structure of a set-top box provided in an embodiment of the present application is shown;

[0033] Figure 3 A schematic structural diagram of a printed circuit board of a set-top box provided in an embodiment of the present application is shown;

[0034] Figure 4 A schematic diagram of the structure of the set-top box AV jack provided in an embodiment of the present application is shown;

[0035] Figure 5 Another structural schematic diagram of the set-top box AV jack provided in an embodiment of the present application is shown;

[0036] Figure 6 A schematic diagram showing a connection relationship between a contact key switch and a CPU pin provided in an embodiment of the present application is shown;

[0037] Figure 7 A structural schematic diagram of an AV socket provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0038] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes and are not intended to limit the scope of protection of the present application.

[0039] It should be understood that the various steps described in the method implementation of the present application can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present application is not limited in this respect.

[0040] As described in the background technology, the prior art detects the plugging and unplugging of AV plugs and sockets by setting a pin specifically used for plugging and unplugging detection in the AV jack, and judging whether the AV plug is unplugged by the signal sensed after the pin contacts the plug. However, it is not applicable to the scenario where the display effect is deteriorated due to the loosening of the AV plug, but the AV plug is not completely unplugged, and it is easy for errors to occur between the plugging and unplugging detection results and the actual loose state of the AV plug. In view of this, the embodiments of the present application provide a set-top box assembly and a set-top box to achieve efficient and accurate detection of the looseness of the AV plug, which helps users to troubleshoot and perform fault maintenance according to the plugging and unplugging detection results when seeing a poor picture.

[0041] In the first aspect, the present application provides a set-top box component, which can be Figure 1 As shown, the set-top box assembly provided in the embodiment of the present application mainly includes two parts:

[0042] Set-top box 11, AV connecting cable 12.

[0043] Among them, Figure 2 As shown, the set-top box 11 may include the following two parts:

[0044] The housing 111 and the printed circuit board 112 are shown in FIG. 1 . The housing 111 is not the focus of the present application and will not be described in detail here. Figure 3 As shown, the AV socket assembly 112-1 and other circuit element parts may be included, wherein the other circuit element parts may include internal circuit components of the set-top box and other connection interfaces between the set-top box and the outside, and the other connection interfaces between the set-top box and the outside include: power interface, network interface, etc. The AV socket assembly 112-1 is located at an edge of the printed circuit board, and the edge of the printed circuit board where the AV socket assembly is located is referred to as the target printed circuit board edge in this article.

[0045] The AV socket assembly 112-1 may be Figure 4 As shown, it mainly includes:

[0046] The AV jack 121 and the contact metal component 122 .

[0047] The contact metal component is arranged at the rear end of the AV jack. In this article, the front end of the AV jack refers to the edge of the target printed circuit board. The specific positional relationship between the front end and the rear end can be as follows: Figure 4 In the embodiment of the present application, the type of the contact metal component 122 is not limited, as long as it includes a conductive metal, and can be a simple metal sheet, such as a metal paddle. It can also be a complex metal structure, such as a metal button switch that can be welded on a printed circuit board.

[0048] As a preferred embodiment, the contact metal part can be a contact key switch, and the interior can actually be a switch. After the plug of the AV connecting line is inserted, it contacts the contact key switch, which will close the contact key switch and further change the internal circuit state.

[0049] Among them, the contact metal parts can be two components independent of the AV jack. In this way, without changing the existing structures of various AV jacks, a contact metal part can be directly added to the rear end of the existing AV jack to achieve fast plugging and unplugging detection of the AV plug, so that the solution provided by the embodiment of the present application can be universal to various existing AV jacks, which helps to improve the versatility of the product.

[0050] As another possible implementation, the contact metal component is a metal substructure located at the tail of the AV jack. For ease of understanding, it can be combined with Figure 5 Thus, by directly setting the contact metal component at the tail end of the AV jack 121, which is a part of the AV jack 121, the occupation of the printed circuit board space by the contact metal component can be effectively reduced, which is more conducive to the development of the product in the direction of small volume.

[0051] In an embodiment of the present application, the matching relationship between the AV cable and the AV jack can be: after the plug of the AV cable is inserted into the AV jack, they can be fully matched. Fully matched means: the audio contact position on the plug of the AV cable is in close contact with the audio contact position on the AV jack, and the video contact position on the plug of the AV cable is in close contact with the video contact position on the AV jack. Specifically, there are two contact circles on the AV cable plug, one is the audio contact circle, and the other is the video contact circle. When the plug of the AV cable is fully inserted into the AV jack, the audio contact circle will be in close contact with the audio contact point on the AV jack, and the video contact circle will be in close contact with the video contact point on the AV jack. As an example, the plug of the AV cable is as follows from the metal part to the plastic part:

[0052] Audio left channel, audio right channel, video, ground GND.

[0053] When the plug on the AV cable is fully inserted into the AV jack, the audio left channel, audio right channel, video and ground GND are connected to the audio left channel, audio right channel, video and ground GND on the AV jack respectively.

[0054] As an implementation method, the contact metal component is parallel to the edge of the target printed circuit board and perpendicular to the printed circuit board, and the distance from the edge of the target printed circuit board is less than or equal to the length of the conductive contact portion of the plug of the AV connecting cable. Figure 4 The structural diagram of the AV socket assembly is shown. The contact metal component is parallel to the edge of the target printed circuit board and installed perpendicular to the printed circuit board, and the distance from the edge of the target printed circuit board is less than or equal to the length of the conductive part of the plug of the AV connecting line. For example, the inner depth of the AV jack is 3mm, and the total length of the conductive part of the plug of the AV connecting line is 4mm. Then the distance between the contact metal component and the edge of the target printed circuit board should be less than or equal to 4mm, so that it can be ensured that the plug of the AV connecting line can contact the contact metal component when it is fully inserted. As a preferred embodiment, in order to ensure the perfect fit between the plug and the jack, the length of the AV plug is preferably 16mm, and the size of the AV jack is preferably 14mm. The length difference between the two is 2mm, and the contact metal component is located 2mm square to the AV jack.

[0055] In the embodiment of the present application, the printed circuit board includes a control unit, which may be a single-chip microcomputer or chip with computing capabilities. The control unit is connected to the contact metal component, and specifically, a pin of the single-chip microcomputer may be connected to the contact metal component. As an implementation method, if the contact metal component is only a simple metal structure, such as a metal sheet, the control unit is specifically used to:

[0056] If the voltage on the contact metal component changes from a high level to a low level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: disconnected state;

[0057] If the voltage on the contact metal component changes from a low level to a high level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: a connected state.

[0058] In the implementation mode of the present application, the contact metal part is in an initial state of being unconnected to electricity by default, and if the top of the plug of the AV cable is metal and is used to transmit electrical signals. In this way, when the plug of the AV cable is inserted into the AV jack, especially when it is fully inserted, the electrical signal transmitted from the plug of the AV cable will cause the contact metal part to switch from an unconnected state to an electrically connected state, and the voltage on the contact metal part changes from a low level to a high level. When the plug of the AV cable is loose or unplugged, the electrical signal transmitted from the plug of the AV cable will be disconnected, and the voltage on the contact metal part will change from a high level to a low level. At this time, the control element can determine the plug-in and unplugging state between the plug of the AV cable and the AV jack as a disconnected state based on the voltage change.

[0059] As another implementation, taking the contact metal part as a contact button switch as an example, the plug part of the AV cable may not be a completely conductive metal structure, for example, the top part of the plug part is a plastic structure, in which case as long as the plug part touches the button switch after being inserted, the circuit state connected to the button switch will be changed, and the control unit can further determine whether the plug of the AV cable is inserted according to the circuit state. Based on this, in the embodiment of the present application, the set-top box component includes: a CPU, a contact button switch S1, an AV socket, and an AV cable. Among them, the AV socket is a common AV socket interface in the industry, and there is no detection pin for plug-in detection in the AV socket interface.

[0060] Specifically, one end of the contact key switch is grounded, and the other end is connected to a preset signal pin of the control unit. For example, assuming that the single-chip microcomputer is a CPU, the preset pin of the CPU is a signal processing pin DDR_WCB. At this time, the control unit is specifically used for:

[0061] If the voltage on the preset signal pin changes from a low level to a high level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: disconnected state;

[0062] If the voltage on the preset signal pin changes from a high level to a low level, it is determined that the plugging and unplugging state between the plug of the AV connecting cable and the AV jack is: a connected state.

[0063] In the embodiment of the present application, the connection relationship between the contact key switch S1 and the signal processing pin DDR_WCB of the CPU can be as follows: Figure 6 As shown:

[0064] Pins 1 and 3 of the contact button switch S1 are connected to the signal processing pin DDR_WCB of the CPU, and the other end of S1 (pins 2 and 4) is grounded. When the plug of the AV cable is fully inserted, the plug of the AV cable will press the contact button switch S1. At this time, pins 1 and 3 are connected to pins 2 and 4, and the signal processing pin DDR_WCB is connected to the ground GND, that is, the voltage on the DDR_WCB pin is converted from a high level to a low level. At this time, it can be determined that the plug-in status between the plug of the AV cable and the AV jack is: connected state.

[0065] When the AV plug is unplugged, the contact button switch S1 is disconnected, and the pin DDR_WCB is not connected to the ground GND. At this time, the voltage on the pin DDR_WCB changes from a low level to a high level. At this time, it can be determined that the plug-in state between the plug of the AV connecting cable and the AV jack is: disconnected state.

[0066] As an implementation method, Figure 7 As shown, the tail end of the AV jack includes a hollow area, and after the plug of the AV connecting cable is fully inserted into the AV jack, it passes through the hollow area and contacts the contact metal part.

[0067] As an implementation mode, when the control unit determines that the plug-in status between the plug of the AV connection cable and the AV jack is a disconnected state, it can send a warning signal to the display unit responsible for screen display in the set-top box, so that a warning interface can be displayed on the screen to the user through the display unit to remind the user that the plug of the AV connection cable and the AV jack are loose or disconnected.

[0068] Based on this, in a second aspect, the present application provides a set-top box, which has the same relevant description as the set-top box 11 in the first aspect and will not be repeated here.

[0069] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0070] It should be noted that the modifications of "one" and "plurality" mentioned in the present application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

Claims

1. A set-top box assembly, characterized in that: The set-top box assembly comprises: A set-top box and an AV connecting cable, wherein the set-top box comprises: an AV socket assembly, the AV socket assembly being arranged at an edge of a target printed circuit board of the set-top box; The AV socket assembly comprises: an AV jack and a contact metal component; the contact metal component is arranged at the rear end of the AV jack, the front end of the AV jack is located at the edge of the target printed circuit board, and the contact metal component is used to contact the plug of the AV connecting line after the plug of the AV connecting line is fully inserted into the AV jack; The printed circuit board of the set-top box comprises: a control unit, which is used to determine the plug-in and pull-out status between the plug of the AV connection line and the AV jack according to the voltage change of the contact metal component.

2. The set-top box assembly according to claim 1, characterized in that: The contact metal component is parallel to the edge of the target printed circuit board and perpendicular to the printed circuit board, and the distance between the contact metal component and the edge of the target printed circuit board is less than or equal to the length of the plug portion of the AV connecting cable.

3. The set-top box assembly according to claim 1, characterized in that: The control unit is specifically used for: If the voltage on the contact metal component changes from a high level to a low level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: disconnected state; If the voltage on the contact metal component changes from a low level to a high level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: a connected state.

4. The set-top box assembly according to claim 1, characterized in that: The contact metal component is a contact key switch, wherein one end of the contact key switch is grounded, and the other end is connected to a preset signal pin of the control unit, and the control unit is specifically used for: If the voltage on the preset signal pin changes from a low level to a high level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: disconnected state; If the voltage on the preset signal pin changes from a high level to a low level, it is determined that the plugging and unplugging state between the plug of the AV connecting cable and the AV jack is: a connected state.

5. The set-top box assembly according to any one of claims 1 to 4, characterized in that: The rear end of the AV jack includes a hollow area. After the plug of the AV connecting cable is fully inserted into the AV jack, it passes through the hollow area and contacts the contact metal component.

6. A set-top box, characterized in that: The set-top box comprises: a printed circuit board, an AV socket assembly, the AV socket assembly is arranged at the edge of a target printed circuit board of the printed circuit board, the AV socket assembly comprises: an AV jack, a contact metal component, the contact metal component is arranged at the rear end of the AV jack, the front end of the AV jack is located at the edge of the target printed circuit board, and the contact metal component is used to contact the plug of the AV connection line after the plug of the AV connection line is fully inserted into the AV jack; The printed circuit board comprises: a control unit, and the control unit is used to determine the plug-in and pull-out status between the plug of the AV connection line and the AV jack according to the voltage change of the contact metal component.

7. The set-top box according to claim 6, characterized in that: The contact metal component is parallel to the edge of the target printed circuit board and perpendicular to the printed circuit board, and the distance between the contact metal component and the edge of the target printed circuit board is less than or equal to the length of the plug portion of the AV connecting cable.

8. The set-top box according to claim 6, characterized in that: The control unit is specifically used for: If the voltage on the contact metal component changes from a high level to a low level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: disconnected state; If the voltage on the contact metal component changes from a low level to a high level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: a connected state.

9. The set-top box according to claim 6, characterized in that: The contact metal component is a contact key switch, wherein one end of the contact key switch is grounded, and the other end is connected to a preset signal pin of the control unit, and the control unit is specifically used for: If the voltage on the preset signal pin changes from a low level to a high level, it is determined that the plugging and unplugging state between the plug of the AV connection cable and the AV jack is: disconnected state; If the voltage on the preset signal pin changes from a high level to a low level, it is determined that the plugging and unplugging state between the plug of the AV connecting cable and the AV jack is: a connected state.

10. The set-top box according to any one of claims 6 to 9, characterized in that: The rear end of the AV jack includes a hollow area. After the plug of the AV connecting cable is fully inserted into the AV jack, it passes through the hollow area and contacts the contact metal component.

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