CN103686035A - Mobile high-definition link mobile data converter and mobile high-definition link data conversion method - Google Patents
Mobile high-definition link mobile data converter and mobile high-definition link data conversion method Download PDFInfo
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- CN103686035A CN103686035A CN201210355118.7A CN201210355118A CN103686035A CN 103686035 A CN103686035 A CN 103686035A CN 201210355118 A CN201210355118 A CN 201210355118A CN 103686035 A CN103686035 A CN 103686035A
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Abstract
The invention discloses a mobile high-definition link mobile data converter and a mobile high-definition link data conversion method, the mobile high-definition link mobile data converter comprising a data decoding circuit for decoding an input datum according to a mobile high-definition link format and outputting a decoded datum; and a data extracting circuit coupled to the data decoding circuit and used for extracting a plurality of output data from the decoded datum. The mobile high-definition link data conversion method comprises decoding an input datum according to a mobile high-definition link format and outputting a decoded datum; and extracting a plurality of output data from the decoded datum.
Description
Technical field
Disclosed embodiment is relevant to data transaction, espespecially a kind of data converter and related data conversion method that is applied to mobile high definition connection (Mobile High-Definition Link, MHL) standard.
Background technology
Mobile high definition connection standard is specialized in the innovative technology that movable video-audio connects, make the exportable 1080P of mobile device and 60Hz picture update rate (Frame Rate, FR) high definition film is to large-sized monitor, its one end is via existing mini USB (micro USB) 2.0 connectivity port executing datas and audio-visual connection, the other end is connected with television set or display via being converted to high-definition media interface (High Definition Multimedia Interface, HDMI) standard.
The receiving terminal of traditional high-definition media interface is when receiving the data of mobile high definition connection, except the medium access control circuit of high-definition media interface, the mobile high definition of still needing connects special-purpose medium access control circuit, yet two cover circuit can make chip area increase, and raise the cost.Consider the demand, thus need the design of an innovation, can allow existing receiving terminal with efficient and cheaply mode receive the data that mobile high definition connects.
Summary of the invention
One of object of the present invention is to provide a kind of data converter and related data conversion method that mobile high definition connects that be applied to.
According to the first embodiment of the present invention, disclose a kind of mobile high definition connection data transducer, include a data decode circuitry, be used for according to the mobile high definition linking format input data of decoding, and output one decoded data; And a data separation circuit, be coupled to this data decode circuitry, use from this decoded data and isolate a plurality of output data.
According to a second embodiment of the present invention, disclose a kind of mobile high definition connection data conversion method, include according to the mobile high definition linking format input data of decoding, and output one decoded data; And this decoded data is isolated a plurality of output data certainly.
By adopting mobile high definition connection data transducer proposed by the invention and mobile high definition connection data conversion method, but the receiving terminal that can make high-definition media interface is compatible to mobile high definition connection, do not increase too much circuit cost, reach the object reducing costs.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of mobile high definition connection data transducer of the present invention.
Fig. 2 is that the data decode circuitry shown in Fig. 1 is found out the schematic diagram of data boundary with control cycle.
Fig. 3 is that the data decode circuitry shown in Fig. 1 is found out the schematic diagram of the first operation of data boundary with guard band.
Fig. 4 is that the data decode circuitry shown in Fig. 1 is found out the schematic diagram of the second operation of data boundary with guard band.
Fig. 5 is that the data decode circuitry shown in Fig. 1 is found out the schematic diagram of the third operation of data boundary with guard band.
Wherein, description of reference numerals is as follows:
100 mobile high definition connection data transducers;
102 data decode circuitry;
104 data separation circuits;
106 physical layers;
108 medium access control circuits.
Embodiment
In the middle of specification and claim, used some vocabulary to censure specific element.In affiliated field, technical staff should understand, and same element may be called with different nouns by manufacturer.This specification and follow-up claim are not used as distinguishing the mode of element with the difference of title, but the difference in function is used as the criterion of distinguishing with element.In the whole text, in the middle of specification and follow-up claims, be an open term mentioned " comprising ", therefore should be construed to " comprise but be not limited to ".In addition, " coupling " word comprises directly any and is indirectly electrically connected means at this.Therefore, if describe a first device in literary composition, be coupled to one second device, represent that this first device can directly be electrically connected in this second device, or be indirectly electrically connected to this second device by other devices or connection means.
Please refer to Fig. 1, Fig. 1 is the schematic diagram that mobile high definition of the present invention connects the embodiment of (Mobile High-Definition Link, MHL) data converter.In the present embodiment, mobile high definition connection data transducer 100 includes data decode circuitry 102 and data separation circuit 104, wherein data decode circuitry 102 is used for decoding by a physical layer (physical layer according to a mobile high definition linking format, PHY layer) 106 input data d_in that produce, and output one decoded data d_out, data separation circuit 104 is coupled to data decode circuitry 102, and according to a high-definition media interface (High Definition Multimedia Interface, HDMI) form, carry out the decoded data d_out of the passage (channel) that mask data decoding circuit 102 exports, to obtain the output data of a plurality of passages.For example, output data d_out1, d_out2 and the d_out3 of three passages of the corresponding three primary colors RGB of difference, however the present invention is not as limit.In addition, data separation circuit 104 is separately passed to output data d_out1, d_out2 and d_out3 in medium access control (Media Access Control, the MAC) circuit 108 that meets a high-definition media interface specification.Hold, mobile high definition connection data transducer 100 (comprising image, sound and control) converts the data of mobile high definition linking format to the data of high-definition media interface form, and the medium access control circuit 108 that makes the data of this high-definition media interface form can be met high-definition media interface specification directly reads.
About data decode circuitry 102, the defined at least one given data type sample of its comparison mobile high definition linking format is found out data boundary with input data d_in, and decodes input data d_in with output decoded data d_out according to this data boundary.Please refer to Fig. 2, Figure 2 shows that the schematic diagram of the data decode circuitry 102 use control cycles (control period) of mobile high definition connection data transducer of the present invention.Under the pattern (24 bits per pixel (BPP) mode) of each pixel 24 bit, if data decode circuitry 102 is received the carrying out data pattern of continuous three control cycles, the data of next receiving can be sequentially the periodic cycle of three channel datas, be d_out_ch0, d_out_ch1, d_out_ch2, d_out_ch0, d_out_ch1, d_out_ch2 ..., the rest may be inferred.And under packed-pixel pattern (packed-pixel mode), if data decode circuitry 102 is received continuous two carrying out data patterns that control cycle forms, the data of next receiving can be sequentially d_out_ch0, d_out_ch1, d_out_ch0, d_out_ch1 ..., the rest may be inferred.
Fig. 3, Fig. 4 and the schematic diagram that Figure 5 shows that the data decode circuitry 102 use guard bands (guard band) of mobile high definition connection data transducer of the present invention.In Fig. 3, under the pattern of each pixel 24 bit, if data decode circuitry 102 is received the carrying out data pattern that passage 1 data islands head (Ch1 data island leading) and passage 2 data islands heads (Ch2 data island leading) form, the data of next receiving can be sequentially d_out_ch0, d_out_ch1, d_out_ch2, d_out_ch0, d_out_ch1, d_out_ch2 ..., the rest may be inferred.And under packed-pixel pattern, if data decode circuitry 102 is received the carrying out data pattern of an independent passage 1 data islands head, the data of next receiving can be sequentially d_out_ch0, d_out_ch1, d_out_ch0, d_out_ch1 ..., the rest may be inferred.In Fig. 4, under the pattern of each pixel 24 bit, if data decode circuitry 102 is received the carrying out data pattern that passage 1 data islands tail (Ch1data island trailing) and passage 2 data islands tails (Ch2 data island trailing) form, represent that the data of receiving finish.And under packed-pixel pattern, if data decode circuitry 102 is received the carrying out data pattern of an independent passage 1 data islands tail, represent that the data of receiving finish.In Fig. 5, under the pattern of each pixel 24 bit, if data decode circuitry 102 is received the carrying out data pattern that passage 0 camera (Ch0 video leading), passage 1 camera (Ch1 video leading) and passage 2 cameras (Ch2 video leading) form, the data of next receiving can be sequentially d_out_ch0, d_out_ch1, d_out_ch2, d_out_ch0, d_out_ch1, d_out_ch2 ..., the rest may be inferred.And under packed-pixel pattern, if data decode circuitry 102 is received the carrying out data pattern that passage 0 data islands head and passage 1 camera form, the data of next receiving can be sequentially d_out_ch0, d_out_ch1, d_out_ch0, d_out_ch1 ..., the rest may be inferred.
By adopting mobile high definition connection data transducer proposed by the invention and mobile high definition connection data conversion method, but the receiving terminal that can make high-definition media interface is compatible to mobile high definition connection, do not increase too much circuit cost, reach the object reducing costs.
The foregoing is only embodiments of the invention, all equalizations of doing according to the claims in the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (12)
1. a mobile high definition connection data transducer, includes:
One data decode circuitry, is used for according to the mobile high definition linking format input data of decoding, and output one decoded data; And
One data separation circuit, is coupled to this data decode circuitry, uses from this decoded data and isolates a plurality of output data.
2. mobile high definition connection data transducer as claimed in claim 1, wherein this data separation circuit is isolated the plurality of output data according to a high-definition media interface form from this decoded data.
3. mobile high definition connection data transducer as claimed in claim 2, wherein this data separation circuit is separately passed to by the plurality of output data the medium access control circuit that meets a high-definition media interface specification.
4. mobile high definition connection data transducer as claimed in claim 1, wherein this data decode circuitry is compared the defined at least one given data type sample of this mobile high definition linking format and this input data are found out data boundary, and decodes these input data to export this decoded data according to this data boundary.
5. mobile high definition connection data transducer as claimed in claim 4, wherein this at least one given data type sample comprises control cycle data.
6. mobile high definition connection data transducer as claimed in claim 4, wherein this at least one given data type sample comprises guard band data.
7. a mobile high definition connection data conversion method, includes:
According to the mobile high definition linking format input data of decoding, and output one decoded data; And
From this decoded data, isolate a plurality of output data.
8. mobile high definition connection data conversion method as claimed in claim 7, wherein isolates the plurality of output data according to a high-definition media interface form from this decoded data from the step that this decoded data is isolated a plurality of output data.
9. mobile high definition connection data conversion method as claimed in claim 8, is wherein separately passed to by the plurality of output data the medium access control circuit that meets a high-definition media interface specification from the step that this decoded data is isolated a plurality of output data.
10. mobile high definition connection data conversion method as claimed in claim 7, wherein according to the mobile high definition linking format input data of decoding, and the step of output one decoded data compares the defined at least one given data type sample of this mobile high definition linking format and this input data are found out data boundary, and decodes these input data to export this decoded data according to this data boundary.
11. mobile high definition connection data conversion methods as claimed in claim 10, wherein this at least one given data type sample comprises control cycle data.
12. mobile high definition connection data conversion methods as claimed in claim 10, wherein this at least one given data type sample comprises guard band data.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349719A (en) * | 1999-12-30 | 2002-05-15 | 皇家菲利浦电子有限公司 | Method and apparatus for converting data streams |
| US20100043045A1 (en) * | 2007-02-16 | 2010-02-18 | Mohammad Hossein Shakiba | Transmit, Receive, and Cross-Talk Cancellation Filters for Back Channelling |
| US20110170011A1 (en) * | 2010-01-14 | 2011-07-14 | Silicon Image, Inc. | Transmission and detection of multi-channel signals in reduced channel format |
| CN102377970A (en) * | 2011-10-27 | 2012-03-14 | 浙江一舟电子科技股份有限公司 | MHL (Mobile High-Definition Link) data conversion system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349719A (en) * | 1999-12-30 | 2002-05-15 | 皇家菲利浦电子有限公司 | Method and apparatus for converting data streams |
| US20100043045A1 (en) * | 2007-02-16 | 2010-02-18 | Mohammad Hossein Shakiba | Transmit, Receive, and Cross-Talk Cancellation Filters for Back Channelling |
| US20110170011A1 (en) * | 2010-01-14 | 2011-07-14 | Silicon Image, Inc. | Transmission and detection of multi-channel signals in reduced channel format |
| CN102377970A (en) * | 2011-10-27 | 2012-03-14 | 浙江一舟电子科技股份有限公司 | MHL (Mobile High-Definition Link) data conversion system |
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