Satellite ODU Controller Tuning Channel Assignment
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Solution Overview
Problem
Current Outdoor Units (ODUs) in satellite broadcasting systems experience increased tuning time as the number of tuners and tuning channels rises, due to the need for individual polling of each tuner, leading to inefficiencies in channel switching and data transmission.
Innovation Solution
A device with a controller and multi-switch configuration that communicates bi-directionally with client devices to assign and manage tuning channels, reducing the need for individual polling by using registration queries and tuning requests to efficiently connect intermediate frequency inputs to respective tuning channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the ODU polls each individual tuner or tuning channel sequentially, then the system can manage multiple tuners and tuning channels, but the total polling time increases with the number of tuners and channels
Solution Approach 1:
The patent combines multiple polling operations into a single polling action. Instead of sequentially polling each tuner individually, the system performs a unified poll that retrieves tuning state information for all tuners simultaneously, reducing the total polling time while maintaining support for multiple tuners and channels
Solution Approach 2:
The polling mechanism is designed to serve multiple functions simultaneously - it can query the state of any tuner, retrieve channel information, and manage multiple tuning channels in a single operation, making the polling system universally applicable to any number of tuners without increasing time complexity
2Adaptability or versatility
If the system supports more tuning channels and transponders, then the adaptability and service capability improve, but the system complexity and control overhead increase
Solution Approach 1:
The ODU is designed with universal functionality to handle multiple transponder signals and tuning channels through a unified control architecture. The single polling mechanism can manage any number of tuners and channels, and the system can simultaneously process multiple satellite signals without requiring separate control paths for each, thereby reducing control overhead while maintaining high adaptability
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
This solution significantly reduces system tuning time by allowing simultaneous connection of multiple IF signals to tuning channels, supporting multiple transponder requests, and optimizing the polling process, particularly beneficial for high-definition and 4K television transmissions.
Implementation Method 1
An outdoor unit (ODU), usually mounted to a building housing the client device, may receive the one or more satellite transponder signals and convert the carrier frequency of each transponder signal to an intermediate frequency (IF) signal
Data Source
AI summary
This disclosure relates to a devices and methods related to satellite information broadcasting. An embodiment may relate to a device that includes a plurality of respective tuning channels. The device includes a controller configured to transmit a registration query and receive a registration request from a client device. The registration request may include a client identifier and a tuner quantity. The tuner quantity may indicate the number of tuners associated with the client device. The controller may assign at least one tuning channel to the client device based on the tuner quantity. Furthermore, the controller may transmit a registration confirmation message to the client device. The registration confirmation message may include the respective tuning channel identifier of the at least one assigned tuning channel.