Encrypted multi-frequency audio-video switching device
An audio-visual and bus interface technology, which is applied in the field of encrypted multi-frequency audio-visual transmission devices, can solve the problems of no effective and safe protection measures, leakage of important data or personal private data, random reading, etc.
Inactive Publication Date: 2009-10-28
YUAN HIGH-TECH DEV CO LTD
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Therefore, the audio-visual signal transmission device 3 must be decoded and integrated with each other through a plurality of hardware components before it can convert the original data of the signals of various specifications into digital audio-visual signals and digital broadcast signals and output them to the computer 40. The hardware used during this process There are a large number of components, and the sources are different, so that the production cost of the audio-visual signal transmission device 3 will be relatively increased.
[0005] In addition, the above two known technologies do not have a proper security encryption mechanism to prevent data from being stolen during the operation of the overall device. As a result, important data or personal private data are leaked, and once obtained by others, it is easy to be read at will, illegally copied and used, and copied and distributed in large quantities, which will cause troubles for users
Therefore, it generally cannot meet the needs of users in actual use.
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[0025] see figure 1 Shown is a schematic circuit block diagram of the present invention. As shown in the figure: the present invention is an encryption multi-frequency audio-visual transmission device. The encryption multi-frequency audio-visual transmission device 1 is at least composed of a multi-frequency demodulator 11, an encryption converter 12 and a bus interface 13. constitute. In the present invention, the bus interface 13 includes PCMCIA or CardBus or ExpressCard or Mini Card or HMC or USB bus interface, and the multi-frequency demodulator 11 can receive terrestrial digital multimedia broadcasting (DigitalMulti-mediaBroadcastingTerrestrial, DMBT) or Advanced Television System Commission (AdvancedTelevisionSystemCommission, ATSC) used in the United States or terrestrial digital video broadcasting (DigitalVideoBroadcastingTerrestrial, DVBT) and handheld mobile digital video broadcasting (DigitalVideoBroadcasting-Handheld, DVBH) used in Europe and Taiwan, or integrate...
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The invention discloses an encrypted multi-frequency audio-video switching device, which comprises a multi-frequency demodulator and an encryption converter, wherein the encryption converter is used for receiving a first digital video signal and a first digital audio signal outputted by the multi-frequency demodulator, respectively outputs a second digital video signal and a second digital audio signal meeting the specification of a bus interface after the selection of encryption or non-encryption, and outputs the signals to a computer through the bus interface corresponding to the specification of the bus interface; therefore, the device can support frequency band function of multiple countries to increase the data transmission quantity by utilizing the multi-frequency demodulator and the encryption converter, and perform further authorization management setting on data.
Description
Technical field: [0001] The present invention relates to an encrypted multi-frequency audio-visual transmission device, especially a multi-frequency demodulator and an encryption converter that can support multiple national frequency bands to increase the amount of data transmission, and further perform data encryption. Encrypted multi-frequency audio-visual transmission device with authorization management settings. Background technique: [0002] Due to the popularization of information, the demand for various information is increasing day by day, and the privacy of related personal information has caused many problems because of the easy access to information. Therefore, in e-commerce on the Internet, mobile devices, personal computers or mainframes, The protection of its data requires the use of encryption settings as the bottom line of security protection. [0003] Traditional audio-visual signal transmission devices, such as figure 2 As shown, the audio-visual signal ...
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Inventor 陈震庭
Owner YUAN HIGH-TECH DEV CO LTD