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HDMI multiplexing method, HDMI, and equipped provided with HDMI

A device and a technology for prompting users, applied in the field of mobile communication, can solve problems such as single function and inability to expand functions of HDMI interface

Active Publication Date: 2012-07-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention provides an HDMI multiplexing method, HDMI, and a device with HDMI, so as to solve the problem in the prior art that the HDMI interface cannot expand the function and lead to a single function

Method used

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  • HDMI multiplexing method, HDMI, and equipped provided with HDMI
  • HDMI multiplexing method, HDMI, and equipped provided with HDMI
  • HDMI multiplexing method, HDMI, and equipped provided with HDMI

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0055] Example 1, the mobile terminal HDMI implements the expansion of the earphone function in a software-hardware compatible manner.

[0056] Scenario 1. The mobile terminal does not provide a 2.5mm or 3.5mm mechanical headphone socket or other headphone jacks during design, and HDMI can be used to realize the function of connecting headphones, and an external headphone accessory in the form of HDMI is required accordingly;

[0057] Scenario 2: The mobile terminal already has a mechanical headphone socket or other headphone jacks, and an additional headphone is connected through HDMI for use by special groups of people or under special circumstances. For example, the first headphone is plugged into the mobile terminal through a mechanical headphone jack for use by normal people. , the second earphone is plugged into the mobile terminal through HDMI for use by the hearing impaired; or, the first earphone is an ordinary earphone, and the second earphone is a wire-controlled ear...

example 2

[0077] Example 2, the mobile terminal HDMI implements the expansion of the FM function through software and hardware compatibility.

[0078] Figure 6 It is a schematic diagram of the hardware implementation of the HDMI compatible FM function of the mobile terminal according to the embodiment of the present invention, such as Figure 6 As shown, on the basis of Example 1, select a shielded ground signal line and add a frequency selection network as the FM antenna path. For example, the shielded ground signal line can be the 16th pin DDC / CECGround of the HDMI D-type connector. The FM antenna channel works only after the earphone is connected externally, and the ground wire of the earphone is used as the FM antenna, and the FM signal reaches the FM module through the FM antenna channel for processing. When HDMI is compatible with the FM function, the left channel, right channel, and MIC channel need to be connected in series to isolate interference ( Figure 6 not shown).

[...

example 3

[0081] In Example 3, the HDMI of the mobile terminal realizes the expansion of the USB function through the compatibility of software and hardware.

[0082] Under normal circumstances, the mobile terminal will be provided with a standard micro (micro) USB interface, which can realize functions such as charging, mass storage and data connection, but at the same time, only the USB interface can be used. a function. At this time, if the HDMI compatible USB function is used, two of the functions of charging, mass storage and data connection can be used in parallel. For example, when the standard micro USB interface is charging, data services or data reading and writing of USB mass storage peripherals can be realized through USB-compatible HDMI at the same time.

[0083] Figure 7 It is a schematic diagram of the hardware implementation of the HDMI compatible USB function of the mobile terminal according to the embodiment of the present invention, such as Figure 7 As shown, whe...

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Abstract

The invention discloses an HDMI (high-definition multimedia interface) multiplexing method, an HDMI, and equipment provided with the HDMI, wherein the method comprises the following steps: one or more pins is (are) selected from pins for signal channel of the HDMI; function setting is directly performed to a reserved pin in the one or more pins according to the multiplexing function, and / or functional setting is performed on a non-reserved pin in the one or more pins in a multiplexing way; and a switch is arranged on a preset multiplexing pin, and then the functions of the multiplexing pin are switched through a control switch. By virtue of the technical scheme provided by the invention, that a terminal HDMI can carry out relevant function application on non-high-definition television when relevant external accessories are connected can be achieved.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a high definition multimedia interface (High Definition Multimedia Interface, HDMI for short) multiplexing method, HDMI, and a device with HDMI. Background technique [0002] In the prior art, a high-definition multimedia interface (High Definition Multimedia Interface, referred to as HDMI) is based on a third generation mobile communication (Third Generation, referred to as 3G) and a long-term evolution (Long Time Evolution, referred to as LTE) system Smart terminals are widely used, and HDMI tends to be a standard configuration for LTE smart terminals. During the transmission process of HDMI, the TV does not need to be decompressed, and the signal can be transmitted to the high-definition TV intact and played. In addition, HDMI also supports signals in multiple formats, and the signal quality is not subject to any loss. [0003] At present, there are two types of HD...

Claims

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Application Information

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IPC IPC(8): H04N5/765H04N5/775
CPCH04N5/765G09G5/006H04N5/775G09G2370/04G09G2370/10G09G2370/12
Inventor 张永亮
Owner ZTE CORP
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