Multi-Receiver Radio Architecture for Concurrent Stream Reception

Solution Overview

Problem

Existing wireless listening devices, such as earbuds or speakers, are limited to connecting to a single source at a time and face challenges in concurrently receiving streams from multiple sources due to interference, degraded link reliability, and increased power consumption when attempting to switch between sources or use multiple radios.

Innovation Solution

A transceiver with multiple receivers and a controller that coordinates simultaneous reception and controlled transmission timing to manage interference, ensuring signals are transmitted only when no reception is occurring, thereby maintaining audio quality and reducing power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple two-way radios are incorporated in the listening device to receive streams from multiple sources concurrently, then the ability to receive multiple streams is improved, but transmission from one radio interferes with reception by the other radio causing desensitization and reception failure

Engineering Contradiction:

Improveability to receive streams from multiple sourcesVSAvoidreception reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system segments the reception function by providing separate receiver chains for different sources. Each source has its own receiver that can operate independently, avoiding the interference that occurs when a single receiver must time-share between multiple sources. This segmentation allows concurrent reception from multiple sources without desensitization issues.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system merges multiple receiver chains with a single transmitter that is time-division multiplexed. The transmitter alternates between serving different source-receiver pairs, coordinating transmissions to avoid interfering with the sensitive reception stages of other radios. This combining approach reduces the total number of transmitters needed while maintaining reliable reception.

Inventive Principle:

Principle #5Merging (Combining)

2Device complexity

If a single receiver switches between multiple sources in a time-division-multiplexed manner, then the device complexity is reduced, but link reliability degrades when two sources transmit simultaneously at different RF frequencies

Engineering Contradiction:

Improvereceiver configuration complexityVSAvoidlink reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The system segments the reception function by providing separate receiver chains for different sources. Each source has its own receiver that can operate independently, avoiding the interference that occurs when a single receiver must time-share between multiple sources. This segmentation allows concurrent reception from multiple sources without desensitization issues.

Inventive Principle:

Principle #1Segmentation

3Reliability

If additional retransmissions are incorporated into protocols to improve reception reliability, then link reliability is improved, but power consumption increases and audio latency must be increased

Engineering Contradiction:

Improvelink reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system segments the reception function by providing separate receiver chains for different sources. Each source has its own receiver that can operate independently, avoiding the interference that occurs when a single receiver must time-share between multiple sources. This segmentation allows concurrent reception from multiple sources without desensitization issues.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250357963A1Joint Radio Architecture to Support Receiving Streams from Multiple Sources Concurrently

Publication Date: 2025.11.20 GOOGLE LLC

AI summary

For a transceiver including a plurality of receivers and a transmitter, controlling simultaneous reception of a first reception signal on a first one of the receivers and a second reception signal on a second one of the receivers, and controlling a timing of transmission of a transmission signal by the transmitter according to both reception at the first one of the receivers and reception at the second one of the receivers.