OTT set top box

Abstract

The utility model discloses an OTT set-top box, which is composed of a box body and a control panel, is used for connecting a digital television, and relates to the field of set-top boxes, the control panel comprises a main control chip arranged on a printed circuit board, and the main control chip is used for acquiring video signals of a network database, decoding the video signals and then transmitting the decoded video signals to the digital television for display; the eMCP chip is arranged on the printed circuit board, is connected with the main control chip and is used for storing a video signal acquired by the main control chip; wherein the eMCP chip is formed by integrating an LPDDR3 memory and an eMMC memory. By adopting a multi-chip packaging scheme of an LPDDR3 memory and an EMMC memory, the system development time is shortened, the area of a control panel is effectively reduced, and the design of smaller size, higher performance and larger capacity of the set top box is realized; and the eMMC and the LPDDR are isolated, so that the signal interference can be effectively reduced, the data transmission rate is stabilized, and the overall chip performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of set-top boxes, in particular to an OTT set-top box. Background Art

[0002] OTT (over the Top) is a content provision method, which refers to the method of transmitting video content as data on the general Internet. Its typical applications are Internet-based live video broadcasting, video on demand services, etc. The OTT set-top box is an application of OTT technology. The display device and the OTT set-top box are connected. The OTT set-top box accesses the general Internet and obtains video content from it. The OTT set-top box then transmits the audio and video signals of the video content selected by the user to the display device for playback.

[0003] With the market demand, the size of set-top boxes has been gradually miniaturized. At present, most of the set-top boxes on the market use LPDDR3 (Low Power Double Data Rate SDRAM, a low-power memory communication standard, known for its low power consumption and small size, specially used in mobile electronic products) chips and eMMC (Embedded Multi Media Card is a standard specification of embedded memory. eMMC integrates a controller in the package, provides a standard interface and manages flash memory) chips separately, plus the main control chip and some peripheral circuits, which increases the size of the set-top box control board and is inconvenient for daily use.

[0004] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an OTT set-top box in view of the above-mentioned defects of the prior art, aiming to solve the problem that the existing set-top box is inconvenient to use due to its large size and low transmission rate.

[0006] The present application provides an OTT set-top box, which adopts the following technical solution:

[0007] An OTT set-top box, consisting of a box body and a control board, is used to connect to a digital television, wherein the control board includes:

[0008] Printed circuit boards, main control chips and eMCP chips;

[0009] The main control chip is arranged on the printed circuit board, and is used to obtain the video signal from the network database, and transmit the decoded video signal to the digital television for display;

[0010] The eMCP chip is arranged on a printed circuit board, and the eMCP chip is connected to the main control chip, and is used to store the video signal acquired by the main control chip;

[0011] The eMCP chip is integrated with LPDDR3 memory and eMMC memory.

[0012] Further, the data pins DDR_DQ0 to DDR_DQ31 of the main control chip are connected to the DQ0 to DQ31 pins of the eMCP chip;

[0013] The address pins DDR_A0, DDR_A2, DDR_A3, DDR_A7, DDR_A8, DDR_A9, DDR_A15, DDR_BA2, DDR_CAS_N, and DDR_WE_N of the main control chip are connected to the CA0-CA9 pins of the eMCP chip;

[0014] The DDR_DQS0~DDR_DQS3 pins of the master control chip are connected to the DQS0~DQS3 pins of the eMCP chip;

[0015] The DDR_CLK_N pin of the master control chip is connected to the / CKV pin of the eMCP chip;

[0016] The DDR_CLK_P pin of the main control chip is connected to the CLK pin of the eMCP chip;

[0017] The data pins EMMC_CDAT0 to EMMC_CDAT7 of the main control chip are connected to the DAT0 to DAT7 pins of the eMCP chip;

[0018] The control pin EMMC_CCLK_OUT of the main control chip is connected to the CLKM pin of the eMCP chip;

[0019] The control pin EMMC_CCMD of the main control chip is connected to the CCMDM pin of the eMCP chip;

[0020] The control pin EMMC_CDATA_STROBE of the main control chip is connected to the RCLKM pin of the eMCP chip.

[0021] Furthermore, the control panel also has a power module, a wireless communication module, an HDMI module and a Bluetooth module;

[0022] The main control chip is respectively connected to the power module, the wireless communication module, the HDMI module and the Bluetooth module to supply power to the wireless communication module, the HDMI module and the Bluetooth module;

[0023] The main control chip obtains network signals through the wireless communication module, the wireless communication module uses the SDIO interface for wireless communication, the HDMI module is used to connect to a digital TV and supports HDMI2.0 output, and the Bluetooth module is used to input infrared or Bluetooth remote control signals.

[0024] Furthermore, the eMMC memory includes an MMC controller and a NAND memory, the MMC controller is connected to the NAND memory and is used to control the NAND memory, and the NAND memory is used to output stored data to the MMC controller.

[0025] Furthermore, the main control chip adopts HiSilicon chip Hi3798.

[0026] Furthermore, the eMCP chip adopts H9TQ64A8 chip.

[0027] Furthermore, the capacity of the eMCP chip includes: the capacity of the LPDDR3 memory is 1GB, and the capacity of the eMMC memory is 8GB.

[0028] Beneficial effects of the utility model: This application connects the Internet and digital TV through the main control board, uses the main control chip to obtain the video signal in the Internet, the eMCP chip can store the video signal, and then the main control chip decodes it and plays the audio and video signal on the digital TV. By adopting the LPDDR3 memory and EMMC memory multi-chip packaging solution, the system development time is reduced, the overall area of ​​the control board is effectively reduced, and a smaller volume, higher performance and larger capacity design is achieved, further driving the miniaturization and better performance of set-top box products; and the isolation design between eMMC and LPDDR can effectively reduce signal interference, stabilize the data transmission rate, and improve the overall chip performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the OTT set-top box control board provided in an embodiment of the present application.

[0030] Figure 2 It is an overall system block diagram of the OTT set-top box control board provided in an embodiment of the present application.

[0031] Figure 3 It is a connection diagram of the main control chip and the eMCP chip provided in an embodiment of the present application.

[0032] Figure 4 It is a schematic diagram of the main control chip provided in the embodiment of the present application.

[0033] Figure 5 It is a schematic diagram of the eMCP chip provided in an embodiment of the present application.

[0034] Figure 6 This is a 5V USB TYPE C power conversion block diagram provided in an embodiment of the present application.

[0035] Figure 7 It is a connection principle diagram between the main control chip and the HDMI interface provided in an embodiment of the present application.

[0036] Figure 8 It is a connection schematic diagram of the main control chip and the wireless communication interface provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The present application discloses an OTT set-top box. To make the purpose, technical solution and effect of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0038] like Figure 1 and Figure 2 As shown, an embodiment of the present application discloses an OTT set-top box, which consists of a box body and a control board, and is used to connect to a digital TV. The control board includes: a printed circuit board, a main control chip and an eMCP chip; the main control chip is arranged on the printed circuit board, and the main control chip is used to obtain the video signal of the network database, and decode the video signal and transmit it to the digital TV for display; the eMCP chip is arranged on the printed circuit board, and the eMCP chip is connected to the main control chip, and is used to store the video signal obtained by the main control chip; wherein the eMCP chip is integrated with LPDDR3 memory and eMMC memory.

[0039] The control board connects the Internet and digital TV. This application adopts the form of a main control chip with an eMCP chip. The video signal on the Internet is obtained through the main control chip. The eMCP chip can store the video signal, and then the main control chip decodes and plays the audio and video signal on the digital TV. This application encapsulates the LPDDR3 memory and EMMC memory into an eMCP chip, thereby driving the miniaturization of the product and reducing the overall area of ​​the control board and the set-top box. Its capacity, transmission rate, and data reading and writing speed are not affected, and signal interference is also reduced, which is extremely practical.

[0040] Specifically, the main control chip uses HiSilicon chip, model Hi3798MRBCV301, and the eMCP chip uses model H9TQ64A8GTMCUR, with the capacity of: LPDDR3 memory is 1GB, and eMMC memory is 8GB.

[0041] like Figure 3 , Figure 4 as well as Figure 5 As shown, the data pins DDR_DQ0 to DDR_DQ31 of the main control chip are connected to the DQ0 to DQ31 pins of the eMCP chip.

[0042] The address pins DDR_A0, DDR_A2, DDR_A3, DDR_A7, DDR_A8, DDR_A9, DDR_A15, DDR_BA2, DDR_CAS_N, and DDR_WE_N of the main control chip are connected to the CA0 to CA9 pins of the eMCP chip.

[0043] The DDR_DQS0~DDR_DQS3 pins of the master chip are connected to the DQS0~DQS3 pins of the eMCP chip.

[0044] The DDR_CLK_N pin of the master chip is connected to the / CKV pin of the eMCP chip.

[0045] The DDR_CLK_P pin of the master chip is connected to the CLK pin of the eMCP chip.

[0046] The DDR_CLK_N and DDR_CLK_P pins of the master chip are clock pins.

[0047] The data pins EMMC_CDAT0 to EMMC_CDAT7 of the main control chip are connected to the DAT0 to DAT7 pins of the eMCP chip.

[0048] The control pin EMMC_CCLK_OUT of the main control chip is connected to the CLKM pin of the eMCP chip.

[0049] The control pin EMMC_CCMD of the main control chip is connected to the CCMDM pin of the eMCP chip.

[0050] The control pin EMMC_CDATA_STROBE of the main control chip is connected to the RCLKM pin of the eMCP chip.

[0051] The control pin EMMC_RST of the main control chip is connected to the RESETM pin of the eMCP chip.

[0052] The eMMC memory includes an MMC controller and a NAND memory. The MMC controller is connected to the NAND memory to control the NAND memory, and the NAND memory is used to output stored data to the MMC controller. NAND memory (NAND flash) is a static storage. When the power is off, the stored content will not disappear. It is generally used to store programs and data. Figure 3 , Figure 4 , you can see its connection relationship with the main control chip.

[0053] In addition, if Figure 6 , Figure 7 as well as Figure 8 As shown, the control board also includes a power module, a wireless communication module (WIFI module), an HDMI module and a Bluetooth module. The main control chip is respectively connected to the power module, the wireless communication module, the HDMI module and the Bluetooth module to power the wireless communication module, the HDMI module and the Bluetooth module. The power module has a 5V USBTYPE C interface.

[0054] Specifically, the main control chip obtains network signals through the wireless communication module, which uses the SDIO interface for wireless communication. The (dual-band) WIFI module uses the Unisoc UWE5621DS and supports 2.4G and 5G. The HDMI module has an HDMI interface for connecting to a digital TV and supports HDMI2.0 output. The Bluetooth module is used to input infrared or Bluetooth remote control signals to achieve wireless control. The control panel also has an LED indication function to indicate the working and standby status of the main control chip. Figure 6 , Figure 7 , Figure 8 They are respectively the conversion block diagram of the power module, the connection schematic diagram of the main control chip and the HDMI module, and the connection schematic diagram of the main control chip and the wireless communication interface.

[0055] The OTT set-top box in this application can access the video signal on the Internet and transmit the audio and video signal to the digital TV for display and playback after decoding. The set-top box is small in size, does not take up space, has a stable and fast data transmission rate, and greatly improves the user experience.

[0056] Compared with the prior art, the utility model has the following advantages:

[0057] 1. This application connects the Internet and digital TV through the main control board, uses the main control chip to obtain the video signal from the Internet, the eMCP chip can store the video signal, and then the main control chip decodes it and plays the audio and video signal on the digital TV. By adopting the LPDDR3 memory and EMMC memory multi-chip packaging solution, the system development time is reduced, the overall area of ​​the control board is effectively reduced, and a smaller volume, higher performance and larger capacity design is achieved, further driving the miniaturization and better performance of set-top box products; and the isolation design between eMMC and LPDDR can effectively reduce signal interference, stabilize the data transmission rate, and improve the overall chip performance.

[0058] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An OTT set-top box, consisting of a box body and a control panel, used to connect to a digital television, characterized in that: The control panel comprises: Printed circuit boards, main control chips and eMCP chips; The main control chip is arranged on the printed circuit board, and is used to obtain the video signal from the network database, and transmit the decoded video signal to the digital television for display; The eMCP chip is arranged on a printed circuit board, and the eMCP chip is connected to the main control chip, and is used to store the video signal acquired by the main control chip; The eMCP chip is integrated with LPDDR3 memory and eMMC memory.

2. The OTT set-top box according to claim 1, characterized in that: The data pins DDR_DQ0 to DDR_DQ31 of the main control chip are connected to the DQ0 to DQ31 pins of the eMCP chip; The address pins DDR_A0, DDR_A2, DDR_A3, DDR_A7, DDR_A8, DDR_A9, DDR_A15, DDR_BA2, DDR_CAS_N, and DDR_WE_N of the main control chip are connected to the CA0-CA9 pins of the eMCP chip; The DDR_DQS0~DDR_DQS3 pins of the master control chip are connected to the DQS0~DQS3 pins of the eMCP chip; The DDR_CLK_N pin of the master control chip is connected to the / CKV pin of the eMCP chip; The DDR_CLK_P pin of the main control chip is connected to the CLK pin of the eMCP chip; The data pins EMMC_CDAT0 to EMMC_CDAT7 of the main control chip are connected to the DAT0 to DAT7 pins of the eMCP chip; The control pin EMMC_CCLK_OUT of the main control chip is connected to the CLKM pin of the eMCP chip; The control pin EMMC_CCMD of the main control chip is connected to the CCMDM pin of the eMCP chip; The control pin EMMC_CDATA_STROBE of the main control chip is connected to the RCLKM pin of the eMCP chip.

3. The OTT set-top box according to claim 1, characterized in that: The control panel also has a power module, a wireless communication module, an HDMI module and a Bluetooth module; The main control chip is respectively connected to the power module, the wireless communication module, the HDMI module and the Bluetooth module to supply power to the wireless communication module, the HDMI module and the Bluetooth module; The main control chip obtains network signals through the wireless communication module, the wireless communication module uses the SDIO interface for wireless communication, the HDMI module is used to connect to a digital TV and supports HDMI2.0 output, and the Bluetooth module is used to input infrared or Bluetooth remote control signals.

4. The OTT set-top box according to claim 1, characterized in that: The eMMC memory includes an MMC controller and a NAND memory. The MMC controller is connected to the NAND memory and is used to control the NAND memory. The NAND memory is used to output storage data to the MMC controller.

5. The OTT set-top box according to claim 1, characterized in that: The main control chip adopts HiSilicon chip Hi3798.

6. The OTT set-top box according to claim 1, characterized in that: The eMCP chip adopts H9TQ64A8 chip.

7. The OTT set-top box according to claim 1, characterized in that: The capacity of the eMCP chip includes: the capacity of the LPDDR3 memory is 1GB, and the capacity of the eMMC memory is 8GB.

Images