Conversion device and method for public interfacing digital television CI to USB mterface
A technology of USB interface and digital TV, which is applied in the field of conversion equipment and conversion from digital TV CI common interface to USB interface, and can solve problems such as inability to watch digital TV, inability to directly access USB equipment, and decoding of encoding methods
Active Publication Date: 2005-03-30
SHENZHEN NAT ENG LAB OF DIGITAL TELEVISION
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Problems solved by technology
With the widespread popularization of digital TV and the continuous updating of its services, digital TV will become a more ideal player, but USB devices cannot be directly connected to digital TV, and many encoding methods cannot be decoded by the built-in digital TV. Decoder, so that it can not be watched through digital TV, at the same time, more and more rich digital TV programs will inevitably lead to the demand for digital TV programs to be selected and saved, and the content of digital TV can be directly saved to the In the user's large-capacity USB storage device, such as PC, mobile hard disk and other equipment, it will be a simple and convenient way
Method used
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[0100] The present invention will be described in further detail below in conjunction with accompanying drawing:
[0101] 1 and 2 show the first embodiment of the present invention.
[0102] The digital TV 1 is connected to a conversion device 2 using a common interface through a common interface 3 .
[0103] The conversion device 2 contains:
[0104] A casing, including an upper cover and a lower cover that can be fastened to each other;
[0105] A USB terminal, arranged at the front end of the case, for connecting the USB device;
[0106] A display module, which is arranged at the front end of the casing, to realize the visualization of the system;
[0107] A PCMCIA terminal, set at the rear end of the casing, used to transmit TS stream and communication information;
[0108] A wireless transceiver module, arranged at the front end of the casing;
[0109] A control unit, which is arranged between the digital TV and other functional modules of the conversion equipment in...
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The invention relates to a device of connecting USB device to digital TV, and supporting data in USB device to be displayed on digital TV directly as well as relates to conversion equipment and method of connecting CI common interface of digital TV, which saves TV program on external USB device, to USB interface. Common interface is adopted between digital TV set and the conversion equipment. The conversion method includes steps: determining whether file of USB device selected by user can be decoded by decoder build in digital TV set; executing step, if file can not be decoded, microprocessor through logic unit of conversion equipment to carry out decoding, re-encoding; sending step, decoded file recognized by decoder built in TV set is partitioned and packed as standard TS stream format, which through CI data stream is provided for digital TV set to playback.
Description
technical field [0001] The present invention relates to a device for connecting a USB device to a digital TV and supporting direct play of data in the USB device in the digital TV through the device, and a digital TV CI common interface for saving TV programs in an external USB device A conversion device to a USB interface and a conversion method thereof. Background technique [0002] In the machine-card separation scheme of the digital TV broadcasting system (DVB), the digital TV and the conditional access function module are separated, the digital TV completes the signal receiving and decoding work, and the conditional access function module completes the signal descrambling and decryption work, An open interface standard is adopted between the digital TV and the conditional access function module, and the access to the digital TV and the conditional access function module can be completed by using this standard interface without considering the specific implementation det...
Claims
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IPC IPC(8): H04L12/28H04N5/00H04N7/16H04N7/24
Inventor 唐凯
Owner SHENZHEN NAT ENG LAB OF DIGITAL TELEVISION