# US 9,521,359 B2 · Mobile high-definition link data converter and mobile high-definition link data converting method

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- Number: US 9,521,359 B2
- Document ID: US9521359B2
- Status: Granted
- Kind: B2
- Application number: 14/024,606
- Filed: 2013-09-11
- Published: 2014-03-20
- Granted: 2016-12-13
- Earliest claimed: 2012-09-14
- Assignees: Realtek Semiconductor Corp.
- Applicants: Realtek Semiconductor Corp.
- Inventors: Wen-Chi Lin; Ching-Sheng Cheng; Tseng-I Lin
- Web page: https://patentgrep.com/patent/US9521359B2

## CPC

- H04N 7/0125: {one of the standards being a high definition standard}
- G09G 5/006: {Details of the interface to the display terminal (specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04)}
- H04N 21/43632: {involving a wired protocol, e.g. IEEE 1394 (high-speed IEEE 1394 serial bus H04L12/40052)}
- H04N 21/43635: {HDMI}
- G09G 2340/02: Handling of images in compressed format, e.g. JPEG, MPEG
- G09G 2370/10: Use of a protocol of communication by packets in interfaces along the display data pipeline
- G09G 2370/12: Use of DVI or HDMI protocol in interfaces along the display data pipeline
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

An exemplary Mobile High-Definition Link (MHL) data converter includes: a data decoding circuit, arranged for decoding an input data according to an MHL specification, and outputting a decoded data; and a data parsing circuit, coupled to the data decoding circuit, arranged for parsing out a plurality of output data from the decoded data. An MHL data converting method includes: decoding an input data according to an MHL specification, and outputting a decoded data; and parsing out a plurality of output data from the decoded data.

## Claims

### Claim 1

A Mobile High-Definition Link (MHL) data converter, comprising:
a data decoding circuit, arranged to decode an input data according to an MHL specification and output a decoded data; and
a data parsing circuit, coupled to the data decoding circuit, the data parsing circuit arranged to parse out a plurality of output data from the decoded data;
wherein the data parsing circuit transmits the plurality of output data to a Media Access Control (MAC) circuit which complies with a High Definition Multimedia Interface (HDMI) specification; and the data decoding circuit compares control period data and/or guard band data in at least one known data pattern defined by the MHL specification with the input data to find out data boundaries, and decodes the input data according to the data boundaries to output the decoded data and each of the at least one known data pattern is a data pattern of a plurality of consecutive control periods, and following received data is data of one of a plurality channels by turns periodically.

### Claim 2 (depends on 1)

The MHL data converter of claim 1, wherein the data parsing circuit parses out the plurality of output data from the decoded data according to a High Definition Multimedia Interface (HDMI) format.

### Claim 3

A Mobile High-Definition Link (MHL) data converting method, comprising:
comparing control period data and/or guard band data in at least one known data pattern defined by an MHL specification with the input data to find out data boundaries;
decoding the input data according to the data boundaries to output the decoded data;
parsing out a plurality of output data from the decoded data; and
transmitting the plurality of output data to a Media Access Control (MAC) circuit which complies with a High Definition Multimedia Interface (HDMI) specification;
wherein each of the at least one known data pattern is a data pattern of a plurality of consecutive control periods, and following received data is data of one of a plurality channels by turns periodically.

### Claim 4 (depends on 3)

The MHL data converting method of claim 3, wherein the step of parsing out the plurality of output data from the decoded data comprises:
parsing out the plurality of output data from the decoded data according to a High Definition Multimedia Interface (HDMI) format.