Wireless Display Signal Transmission Using Ultra-Wideband

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Solution Overview

Problem

Current wireless display signal transmission methods, such as those using IEEE 802.11a/b, suffer from poor high-data-rate performance, leading to image degradation and inability to synchronize high-bandwidth display devices, and do not facilitate multi-user sharing of display devices.

Innovation Solution

A method and apparatus utilizing a wireless signal transceiver unit with ultra-wideband capabilities and a network-protocol-based high-frequency signal channel, along with a main controller and image data process control unit, to establish a high-frequency signal channel for multiple host devices, allowing for lossless data transmission and multi-user screen-division displays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If deep compression is used to transmit display signals wirelessly, then bandwidth requirements are reduced, but image quality deteriorates and synchronization is lost

Engineering Contradiction:
Improvedata transmission bandwidthVSAvoidimage quality
Core Design Contradiction:
Quantity of substanceVSManufacturing precision

Solution Approach 1:

The patent changes the transmission parameter from compressed data to original display data, utilizing the full bandwidth capability of the wireless transmission device to transmit uncompressed signals, thereby maintaining image quality while achieving wireless transmission

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent transmits more data than traditional methods by sending original display data instead of compressed data, using the excess bandwidth capacity of modern wireless transmission to accommodate the higher data rate requirement

Inventive Principle:
Principle #16Partial or excessive action

2Manufacturing precision

If cable connections are used to transmit display signals, then image quality is maintained, but mobility and multi-user sharing are limited

Engineering Contradiction:
Improveimage qualityVSAvoidmulti-user sharing capability
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The wireless transmission device is designed to serve multiple host devices simultaneously, enabling one display device to be shared by multiple users without compromising image quality, thus achieving multi-functionality

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Manufacturing precision

If wireless transmission with high data rate is implemented, then image quality is improved, but device complexity increases

Engineering Contradiction:
Improveimage qualityVSAvoidwireless transmission system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical cable connection system with a wireless transmission system that uses electromagnetic fields to transmit display signals, eliminating physical constraints while maintaining signal quality

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS8060148B2Method and apparatus for wirelessly transmitting display signals, and display device
Publication Date: 2011.11.15 LENOVO (BEIJING) LTD
  • US8060148B2 patent drawing
  • US8060148B2 patent drawing
  • US8060148B2 patent drawing

AI summary

The present invention discloses an apparatus for wirelessly transmitting display signals between a plurality of external host device and a display device. The apparatus comprises a wireless signal transceiver unit for establishing a network-transmission-protocol-based high-frequency signal channel for respective external host devices; a main controller, connected to the wireless signal transceiver unit, for analyzing signals from the wireless signal transceiver unit to extract information of the plurality of external host devices, configuration information and/or the display data, performing configurations and display mode selection based on the configuration information, and outputting the active display data; an image data process control unit, connected to the main controller and the display device, for storing the display data from the main controller, controlling the output of the display data, and performing timing control to interface signals of the display device.