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Signal acquisition and transmission system and method based on PCMCIA interface

A signal acquisition and transmission system technology, applied in image communication, selective content distribution, electrical components, etc., can solve problems such as complexity, high cost, and inability to collect data

Active Publication Date: 2014-07-09
SHENZHEN STATE MICRO TECH CO LTD
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Problems solved by technology

[0004] However, when the signal data between the set-top box or all-in-one machine and the CAM card is abnormal, how to collect the abnormal data and obtain the abnormal data to provide the corresponding data basis for solving the problem is very important. The existing solutions are generally relatively Complicated, high cost, unable to collect data well, and provide users with corresponding solutions

Method used

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  • Signal acquisition and transmission system and method based on PCMCIA interface
  • Signal acquisition and transmission system and method based on PCMCIA interface

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Embodiment Construction

[0023] The invention will be described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the descriptions of the specific embodiments are only used to explain the technical solutions proposed by the present invention, not to limit the present invention.

[0024] Such as figure 1 As shown, the signal acquisition and transmission system based on the PCMCIA interface proposed by the present invention mainly consists of a PCMCIA interface 3, an acquisition module 2, and a data transmission module 1 interconnected with a set-top box and a CAM. The acquisition module collects and caches the signals on the PCMCIA interface, and sends an interrupt signal for carrying data to the data transmission module, and the data transmission module is a main control unit, which is used to send and receive commands and status and control of the control module in the external device The acquisition module collects and interrupts signals, an...

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Abstract

The invention discloses a signal acquisition transmission system and method based on a PCMCIA interface, and relates to the fields of digital television set top boxes, all-in-one machines, computers and the like. The system comprises the PCMCIA interface, an acquisition module and a data transmission module, wherein the PCMCIA interface is interconnected with a set top box and a CAM card. The acquisition module is used for acquiring signals on the PCMCIA interface and transmitting the signals to an external device through the data transmission module. The acquisition transmission system and method are convenient and quick to implement, stable, low in cost and efficient.

Description

technical field [0001] The invention relates to the technology of signal collection and transmission based on PCMCIA interface. Background technique [0002] PCMCIA is an interface specification (bus structure) widely used in electronic devices such as notebooks and digital cameras. PCMCIA is also widely used in the digital TV industry. [0003] The existing digital TV card separation system adopts a CAM card that inherits the independent circuit of the conditional access module in the digital TV receiving system, that is, the digital TV conditional access module CAM card, which is used in conjunction with the digital TV set-top box or all-in-one machine through the PCMCIA interface , to achieve stable, high-quality encrypted digital program reception. [0004] However, when the signal data between the set-top box or all-in-one machine and the CAM card is abnormal, how to collect the abnormal data and obtain the abnormal data to provide the corresponding data basis for solv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/41H04N21/418
Inventor 蒋灿徐浩
Owner SHENZHEN STATE MICRO TECH CO LTD
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