Universal LNB Switching Linear and Circular Polarity Signals
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Solution Overview
Problem
The limited bandwidth in the US for satellite data transmission due to the use of circular polarity, combined with the high cost and impracticality of replacing existing receiving apparatus to accommodate both circular and linear polarity formats, hinders the efficient transition to a dual-polarity data broadcast system.
Innovation Solution
Apparatus with a low noise block and processing means that can selectively receive and process both circular and linear polarity formats, allowing for remote control switching between formats without physical changes, enabling gradual installation and minimizing downtime and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing receiving apparatus is replaced to accommodate both circular and linear polarity formats, then the system can receive dual-polarity data, but the installation cost and time increase significantly
Solution Approach 1:
The receiving apparatus is designed with universal capability to handle both circular and linear polarity formats through a single device. The LNB assembly incorporates switching means that can selectively connect to either circular or linear polarity output, allowing one apparatus to serve multiple functions without requiring separate receiving systems for each polarity type.
Solution Approach 2:
The system incorporates dynamic switching capability within the receiving apparatus, allowing the polarity format to be changed on-demand based on broadcast requirements. The switching means can dynamically reconfigure the signal path between circular and linear polarity outputs, enabling the apparatus to adapt its reception mode without physical replacement or permanent reconfiguration.
2Adaptability or versatility
If existing apparatus is replaced to support dual polarity, then both formats can be received, but the time required for replacement and service disruption increase
Solution Approach 1:
The receiving apparatus is pre-configured with both circular and linear polarity reception capabilities during manufacturing, including the switching means and dual-output LNB assembly. This preliminary preparation eliminates the need for field modifications or replacements when polarity format changes are required, as the apparatus is already equipped to handle both formats from installation.
Solution Approach 2:
The system enables real-time switching between polarity formats through integrated switching means, allowing operators to change reception modes without physical apparatus replacement. This dynamic reconfiguration capability reduces service disruption time to minimal operational switching rather than lengthy replacement procedures.
3Adaptability or versatility
If separate apparatus are fitted for each polarity format, then both formats can be received, but the cost of additional equipment and installation increases
Solution Approach 1:
The invention merges circular and linear polarity reception capabilities into a single integrated receiving apparatus. The LNB assembly incorporates switching means that combines both polarity output paths within one device, eliminating the need for separate receiving systems and reducing the total quantity of apparatus required while maintaining full dual-polarity compatibility.
Solution Approach 2:
A single receiving apparatus is designed to perform multiple functions by incorporating both circular and linear polarity reception through universal switching means. This multi-functional design allows one apparatus to replace what would traditionally require two separate systems, reducing equipment quantity and installation complexity.
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
Enables seamless transition to dual-polarity data broadcast by allowing existing apparatus to be retrofitted for selective polarity reception, reducing installation time and costs, and ensuring continuous service with minimal disruption to subscribers.
Implementation Method 1
an antenna with which is mounted a low noise block (LNB)
Data Source
AI summary
The invention relates to apparatus and method which can be used to receive broadcast digital data. The apparatus and method are provided at one or more receiving locations and is connected to one or more broadcast data receivers at each location. The apparatus is capable of receiving and processing data in linear and/or circular polarity formats and the operating condition of the same can be altered in response to a command signal broadcast to the receiving locations prior to the transmission of data in a new format such as to the change in the operating condition of the apparatus to receive and process linear as well as the previously broadcast circular polarity format data.