Frequency Shifting Transceiver for Wireless-Physical Data Bridging

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Solution Overview

Problem

In areas lacking wireless communication infrastructure, there is a need for a low-cost communication system that can transfer data at high rates through physical infrastructure, as existing solutions are costly and inefficient.

Innovation Solution

An external data transceiver that frequency shifts signals between wireless communication devices and physical devices, using transmit and receive circuits with bandpass filters, mixers, amplifiers, and synthesizers to enable data transfer between 2.3-2.7 GHz and 900-1100 MHz frequencies, allowing for cost-effective high-data-rate communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If wireless communication systems use high data transfer rates with specialized integrated circuits, then data transfer performance is improved, but system cost increases

Engineering Contradiction:
Improvedata transfer rateVSAvoidsystem cost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent employs relatively low-cost wireless communication integrated circuits that may have limited performance compared to specialized high-end circuits, but provide sufficient functionality at lower cost. This allows the system to achieve acceptable data transfer rates while reducing the overall system cost, directly addressing the contradiction between performance and manufacturing cost.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The system dynamically adjusts operational parameters such as data transfer rate, frequency, and power consumption to optimize the balance between performance and cost. By modifying these parameters based on actual communication needs, the system achieves high data transfer rates when necessary while operating at lower costs during normal conditions.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If physical infrastructure is used in areas lacking wireless infrastructure, then communication coverage is improved, but data transfer rate decreases

Engineering Contradiction:
Improvecommunication coverageVSAvoiddata transfer rate
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent introduces a hybrid communication system that acts as an intermediary between wireless and physical infrastructure. This system can switch between wireless modes (for high speed) and physical infrastructure modes (for coverage), mediating the trade-off between coverage and data transfer rate by selecting the appropriate communication path based on available infrastructure and performance requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If components for high data transfer rates through physical infrastructure are used, then data transfer performance is improved, but component cost increases

Engineering Contradiction:
Improvedata transfer rateVSAvoidcomponent cost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The system implements high data transfer rate capabilities partially, only when and where needed, rather than uniformly across all components. By applying advanced components selectively in critical paths while using standard components elsewhere, the system achieves high performance where necessary while keeping overall component costs manageable.

Inventive Principle:
Principle #16Partial or excessive action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The external data transceiver provides a cost-effective means to achieve high data transfer rates by frequency shifting signals, making it suitable for areas with physical communication infrastructure, while maintaining transparency to wireless communication devices.

Implementation Method 1

The transmit mixer can advantageously mix the filtered signal from the first bandpass filter with a local oscillator signal, thereby generating a second frequency signal that is receivable by the physical device

Methodology Applied
Scientific EffectMixing: Heterodyne

Implementation Method 2

The receive mixer can advantageously mix the filtered signal from the first bandpass filter with a local oscillator signal, thereby generating a second frequency signal that is receivable by the wireless communication device

Methodology Applied
Scientific EffectMixing: Heterodyne

Data Source

PatentUS8160509B2Apparatus for coupling a wireless communication device to a physical device
Publication Date: 2012.04.17 QUALCOMM INC
  • US8160509B2 patent drawing
  • US8160509B2 patent drawing
  • US8160509B2 patent drawing

AI summary

A wireless communication device may be configured to transmit and receive data through a physical device, such as a cable. Relatively higher transmit radio frequency (RF) signals from the wireless communication device may be shifted to a relatively lower frequency, thereby enabling the relatively lower frequency signals to be carried by the physical device. Similarly, relatively lower frequency signals from the physical device may be shifted to relatively higher frequencies, thereby enabling the wireless communication device to receive the signals from the physical device. In one embodiment, the frequency of the RF signals may be between 2.3 and 2.7 GHz and the frequency of the relatively lower frequency shifted signals may be between 900 and 1100 MHz.