Satellite Tuner Virtual Transponder Swath Segmentation
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Solution Overview
Problem
Conventional satellite television systems are limited in their ability to simultaneously access and record multiple channels from different satellite transponders, as each tuner can only tune to a single transponder at a time, leading to inefficiencies in resource utilization and user flexibility.
Innovation Solution
The system employs virtual transponders to allow a single tuner to access and record multiple channels from different satellite transponders by filtering and combining transport streams at the outdoor satellite unit, enabling simultaneous tuning and recording of channels across multiple transponders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If each tuner is configured to tune to a single transponder at a time, then the device complexity is reduced and ease of operation is maintained, but the productivity and versatility of the system deteriorate because multiple channels from different transponders cannot be accessed simultaneously
Solution Approach 1:
The patent segments the transponder signal into multiple 30 MHz swaths of bandwidth, allowing a single tuner to access multiple channels simultaneously by tuning to different swaths. Each swath contains a portion of the transponder's transport stream, and the system combines these segmented swathes to reconstruct the full channel content.
Solution Approach 2:
The patent introduces a new dimension of operation by enabling tuners to access multiple frequency swaths within a single transponder bandwidth. Instead of limiting each tuner to a single frequency point, the system allows simultaneous tuning to multiple swaths (e.g., lower, upper, and intermediate swaths) within the same transponder, effectively adding a dimensional layer to the tuning capability.
2Productivity
If multiple tuners are used to access channels from different transponders, then the productivity and versatility improve, but the device complexity and cost increase
Solution Approach 1:
The patent makes existing tuners multi-functional by enabling them to access multiple swaths within a transponder simultaneously. A single tuner can now perform the function of multiple tuners by combining signals from different swaths, allowing the system to access channels from multiple transponders without proportionally increasing the number of physical tuners.
Solution Approach 2:
The patent creates virtual copies of tuner functionality through software processing. By combining multiple swathes received by a single physical tuner, the system creates a virtual multi-tuner effect, where the combined swathes provide access to multiple channels as if multiple independent tuners were being used.
3Loss of energy
If a single tuner accesses multiple channels from the same transponder, then the resource utilization improves, but the adaptability deteriorates because channels from different transponders cannot be accessed
Solution Approach 1:
The patent merges multiple swaths from different transponders into a unified signal stream that a single tuner can process. By combining the lower swath, upper swath, and intermediate swath (if available) from the same or different transponders, the system creates a consolidated output that provides access to multiple channels while maintaining efficient resource utilization.
Data Source
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AI summary
A television receiver and related methods are described. The television receiver (110) comprises a plurality of tuners (204); one or more processors (202); and a memory (208) storing processor-readable instructions. The processors (202) process a first television channel embedded within a particular bandwidth that is addressable by a particular tuner of the plurality of tuners (204). The processors (202) detect a request to tune to a second television channel, the second television channel broadcast on a satellite transponder different than the first television channel. The processors (202) send to an outdoor satellite unit (122) a request to receive the first television channel and the second television channel within the particular bandwidth that is addressable by the particular tuner.