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Multi-signal input conversion device, method and head-mounted display device

An input conversion and signal conversion technology, which is applied in the directions of image communication, TV, color TV components, etc., can solve the problems of low cost performance, reduce the compatibility of head-mounted display devices, and limit the applicable places of head-mounted display devices, etc. Cost-effectiveness, increasing applicable places, and expanding the effect of applicable places

Active Publication Date: 2018-04-06
GEER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are not many places that can provide MHL signals at present, but there are relatively many places that can provide HDMI (High Definition Multimedia Interface) signals and WIFI (Wireless-Fldelity, Wireless Fidelity) signals. The device can only receive MHL signals, which greatly reduces the compatibility of the head-mounted display device, and also greatly limits the applicable places of the head-mounted display device, and the cost performance is low

Method used

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  • Multi-signal input conversion device, method and head-mounted display device
  • Multi-signal input conversion device, method and head-mounted display device
  • Multi-signal input conversion device, method and head-mounted display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1As shown, a multi-signal input conversion device for HMD includes an HML signal input interface MHL IN for receiving MHL signals, and the HML signal input interface MHL IN is a Micro USB interface. Also includes: HDMI signal input interface PC HDMI for receiving HDMI signals, WIFI receiving module WIFI for receiving wireless audio and video signals, and mobile phone projection module MIRACAST for inserting SD cards (Secure Digital Memory Card, safe digital card) Or TF card (TRANS-FLASH card, expandable mobile memory card) memory card slot SD / TF. WIFI receiving module WIFI, mobile phone projection module MIRACAST and memory card socket SD / TF are all connected to the input pin of an AP (Application Processor, application processor), and AP will receive module WIFI from WIFI, mobile phone projection module MIRACAST and memory card socket SD The signal received at / TF is decoded, and then converted into an HDMI signal to be output by the output terminal. H...

Embodiment 2

[0051] This embodiment is basically the same as Embodiment 1, the difference is that:

[0052] Such as Figure 5 As shown, in this embodiment, the HDMI signal input interface PC HDMI is directly connected to the HDMI to MHL chip HDMI TO MHL, and the AP decodes the signal received from the WIFI receiving module WIFI, the mobile phone projection module MIRACAST and the memory card socket SD / TF, and then It is directly converted into MHL signal and output by the output terminal. HML signal input interface MHL IN, HDMI to MHL chip HDMI TO MHL output pin and AP output are simultaneously connected to an MHL three-select-one switch chip MHL SWITCH input pin, MHL three-select one switch chip MHL SWITCH output tube The feet are connected to HMD products through cables.

[0053] The multi-signal input conversion method carried out by applying the above-mentioned multi-signal input conversion device includes the following steps:

[0054] First determine whether the audio and video sig...

Embodiment 3

[0061]A head-mounted display device, on which the multi-signal input conversion device described in Embodiment 1 or Embodiment 2 is installed. The head-mounted display device can not only receive MHL signals, but also receive HDMI signals, wireless audio and video signals, and play audio and video information in the local memory card, which greatly increases the compatibility of the head-mounted display device and increases the The applicable place of the device greatly improves the cost performance of the head-mounted display device.

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Abstract

The invention discloses a multi-signal input conversion device, a multi-signal input conversion method and head-mounted display equipment and relates to the technical field of head-mounted display products. The multi-signal input conversion device comprises an MHL (Mobile High-Definition Link) signal input interface, an HDMI (High-Definition Multi-media Interface) signal input interface, a wireless receiving module and an AP (Access Point), wherein the AP is connected with the wireless receiving module and used for converting wireless audio and video signals received by the wireless receiving module to HDMI signals to be output; after being selected by an HDMI alternative switch chip, the signals output by the AP and signals received by the HDMI signal input interface are transmitted to an HDMI to MHL chip, and the HDMI signals are converted into MHL signals by the HDMI to MHL chip; the output signals of the HDMI to MHL chip and signals received by the MHL signal input interface are output to an HMD (Helmet-Mounted Display) after being selected by an MHL alternative switch chip. The technical problem in the prior art that the head-mounted display equipment has poor compatibility is solved. The head-mounted display equipment has the advantages of multiple receiving signal variety, strong compatibility, wide application range and high cost-to-performance ratio.

Description

technical field [0001] The present invention relates to the technical field of head-mounted display products, in particular to a multi-signal input conversion device and method for HMD and a head-mounted display device equipped with the device. Background technique [0002] HMD (Head Mount Display, head-mounted display device) enlarges the image on the ultra-micro-display through a set of optical systems, projects the image on the retina, and then presents the large-screen image in the eyes of the viewer, also known as the glasses display , Portable cinema. Because MHL (Mobile High-Definition Link, mobile terminal high-definition video standard interface) signal transmission has the advantages of fewer pins (pins), fewer cables, light weight, and small footprint, the existing head-mounted display The equipment mainly adopts MHL signal input. However, there are not many places that can provide MHL signals at present, but there are relatively many places that can provide HDM...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/268H04N5/765
Inventor 邓雪冰张金国
Owner GEER TECH CO LTD