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USB (universal serial bus) data wireless transmission method

A wireless transmission and data technology, applied in the field of wireless transmission, can solve problems such as feedback data varies widely, receivers cannot support equipment, host limitations, etc., and achieve the effect of overcoming limitations

Inactive Publication Date: 2011-08-24
SEAMON SCI BEIJING INT
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  • Summary
  • Abstract
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Problems solved by technology

[0003] However, the above-mentioned existing way of connecting the receiver to the HID device has the following problems: the feedback data of different device manufacturers may vary widely, and the receiver cannot support the devices of all manufacturers, which causes the user to use the receiver to remotely control the connection to the transmitter. host limitations

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  • USB (universal serial bus) data wireless transmission method
  • USB (universal serial bus) data wireless transmission method

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Embodiment Construction

[0023] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] The WHDI receiver in the present invention has the function of USB HOST, and the transmitter has the function of USBDEV. There is a unique "root" in the topology of the USB bus. This root is the USB HOST (USB host). All USB devices are connected to the USB HOST through the USB HUB or directly. The USB device here is the USB DEV. Some The USB interface of the chip can only be used as a USB host, and the USB interface of some chips can only be used as a USB device, so the receiver must have the USB HOST function, and the transmitter must have the USB DEV function. If the interface of any USB device is only physically connected to the USB host, but if the software doe...

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PUM

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Abstract

The invention discloses a USB (universal serial bus) data wireless transmission method which comprises the following steps: S1, when USB equipment is connected to a WHDI (wireless high definition interface) receiver, the receiver connects the USB equipment to a host with a USB HOST function through a transmitter, wherein the receiver has a USB HOST function, and the transmitter has a USBDEV function; S2, the receiver and transmitter transmit the data interacted between the host and the USB equipment through a WHDI transmission channel; and S3, after the data transmission is over, the USB equipment cuts off connection with the WHDI receiver. Through the invention, the limitation of connecting the transmitter by use of remote control of the receiver by the user caused by different equipment manufacturers is overcome, and the receiver interacts with the host better.

Description

technical field [0001] The invention relates to the technical field of wireless transmission, in particular to a method for wireless transmission of USB data. Background technique [0002] So far, the Wireless High Definition Interface (WHDI) uses radio waves as the medium and uses 5GHz unlicensed channels to transmit 1080P (uncompressed) high-definition resolution signals and stereo signals within a range of 30 meters, and can easily It penetrates the barrier of the wall and controls the HDMI video transmission delay within 1 millisecond, making it easy to set up a home audio-visual center and a multimedia conference presentation center. The connection configuration of the device is very simple. It is equipped with a transmitter and a receiver. All sources send full HD format video and dual-channel format stereo audio. The attached remote control can choose the input channel line at will, and supports multi-channel infrared remote control return function, suitable for For ...

Claims

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Application Information

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IPC IPC(8): H04N5/765
Inventor 贾炳臣
Owner SEAMON SCI BEIJING INT
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