Dual-Path Video Channel Architecture for Glitch-Free Mode Transitions
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Solution Overview
Problem
Conventional satellite television systems face limitations in efficiently transitioning between video and network channel modes, leading to power consumption issues and potential glitches during mode changes.
Innovation Solution
A communication device with a wideband and narrowband path, utilizing a wideband tuner for multiple channels and a narrowband tuner for single channels, along with a crossbar for signal selection, enables seamless transitions between video and network channel modes by configuring power states optimally, allowing continuous network channel reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single path system is used for both video and network channels, then device complexity is reduced, but power consumption increases and transition glitches occur
Solution Approach 1:
The system is divided into two independent paths: a wideband path for video channels and a narrowband path for network channels. Each path can be independently controlled and powered down when not in use, resolving the contradiction by allowing simplified single-path operation when only one function is needed while avoiding the complexity of managing both paths simultaneously.
Solution Approach 2:
The system dynamically switches between different operational modes (video mode, network mode, transition modes) by activating appropriate paths. The controller dynamically adjusts which path is active based on current needs, enabling low power consumption by keeping only the necessary path active rather than maintaining both paths continuously.
2Device complexity
If a single path system is used for both video and network channels, then device complexity is reduced, but transition glitches occur during mode changes
Solution Approach 1:
By segmenting the system into separate wideband and narrowband paths, the patent eliminates transition glitches between video and network modes. Each path is dedicated to its specific function, so switching between modes simply involves changing which path is active rather than reconfiguring a shared path, ensuring reliable and glitch-free transitions.
Solution Approach 2:
The controller acts as an intermediary that manages the switching between paths. During transition modes, the controller coordinates the activation of both paths temporarily, using the narrowband path as an intermediary to receive network channels while the wideband path is being deactivated, ensuring seamless transitions without glitches.
3Adaptability or versatility
If wideband path is used for all channels, then channel reception capability is improved, but power consumption increases
Solution Approach 1:
The system segments channel reception into two specialized paths: the wideband path for video channels and the narrowband path for network channels. This allows the system to maintain high channel reception capability when needed while reducing power consumption by activating only the necessary path for the current function, rather than keeping the wideband path active for all scenarios.
Solution Approach 2:
The system uses partial action by activating only the narrowband path when only network channels are needed, and only the wideband path when video channels are needed. This partial activation approach reduces power consumption compared to continuously activating the full wideband path, while still providing complete channel reception capability when both paths are active during transition modes.
Data Source
AI summary
Methods and systems for multi-path video and network channels may comprise a communication device comprising a wideband path (WB) and a narrowband path (NB). A video channel and a network channel may be received in the WB when the device is operating in a first stage. A video channel and a network channel may be received in the WB and the network channel may also be received in the NB when the device is operating in a second stage. The network channel may be received in the NB when the device is operating in a third stage. The reception of the network channel from both the WB and NB may enable a continuous reception of the network channel in a transition between the first and third stages. The WB may be operable to receive a plurality of channels and the NB may be operable to receive a single channel.