Camera Transceiver Isolation via Segmented Layout and Shields

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Solution Overview

Problem

In smart home environments, multiple transceivers in devices experience poor isolation due to close physical spacing and shared frequency bands, leading to interference and potential damage from excessive input power, affecting communication performance and component safety.

Innovation Solution

Implementing various component layout strategies, bypass circuitry, and control signals to manage transmission access and reduce interference between transceivers, optimizing antenna performance and energy transfer while minimizing harmful effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If multiple transceivers are placed in close physical spacing within a compact device, then device integration and compactness are improved, but isolation between transceivers deteriorates leading to interference and potential damage

Engineering Contradiction:

Improvedevice compactnessVSAvoidtransceiver interference

Core Design Contradiction:

Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The device is segmented into multiple isolation zones, each housing a transceiver. Physical partitions and conductive shields divide the internal space to create electromagnetic isolation barriers, allowing compact arrangement while maintaining separation between transceivers.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Conductive shields and isolation circuits act as intermediary elements between transceivers. These intermediaries block electromagnetic interference and prevent harmful coupling while allowing the transceivers to operate in close proximity within the compact device.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If transceivers share the same or close frequency bands, then communication versatility is improved, but harmful interference between transceivers worsens

Engineering Contradiction:

Improvecommunication capabilityVSAvoidfrequency interference

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The system dynamically adjusts operational parameters such as frequency, power level, and timing of transceivers. By changing these parameters in real-time, the device enables multiple transceivers to share frequency bands while minimizing interference through coordinated parameter modulation.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

Transceivers operate in periodic time-division multiplexing cycles, taking turns to transmit and receive. This periodic action allows multiple transceivers to share the same frequency band without continuous interference, as each transceiver is active only during its designated time slot.

Inventive Principle:

Principle #19Periodic action

3Device complexity

If transceiver components are poorly isolated, then device complexity is reduced, but component damage risk increases due to exceeded input power thresholds

Engineering Contradiction:

Improveisolation structure complexityVSAvoidcomponent safety

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

Protective circuits and isolation mechanisms are pre-configured within the device design to cushion against potential harmful effects. These built-in protective measures activate automatically when interference levels rise, preventing component damage before it occurs without requiring complex real-time control.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentEP3308471B1Systems, methods, and devices for managing coexistence of multiple transceiver devices by optimizing component layout

Publication Date: 2025.03.26 GOOGLE LLC

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AI summary

A camera assembly includes an enclosed housing having a rear surface, a front surface, and a periphery. The camera assembly also includes a lens module located within the housing and configured to receive light via the front surface, and a circuit board comprising communication circuitry located within the housing and configured to wireless communicate over a plurality of different communication protocols. The camera assembly further includes a first antenna arranged at a location on the circuit board, the first antenna configured for communication over a first one of the communication protocols, and a second antenna arranged at a location on the inner surface of the periphery, the second antenna configured for communication over a second one of the communication protocols.