Dvb receiver with diversity

Abstract

The object of the present invention is to realize minaturization and low cost of a diversity device for receiving digital television broadcast. In a vehicle-mounted terrestrial digital receiver, each tuner (2a to 2d) is located in a tuner-side casing (26) of a connector circuit section (25) provided at a power feeding point of a corresponding one of a plurality of digital-television-broadcast-receiving antenna devices (1a to 1d). Output terminals of the tuners (2a to 2d) are connected to a demodulation-system-side casing (10) using balanced signal cables (12a to 12d). The demodulation-system-side casing (10) contains OFDM demodulators (5a to 5d) that decode IF signals output from the corresponding tuners (2a to 2d), combining units (6a to 6c) that combine demodulated signals to generate a combined signal, and an MPEG decoder (7) that decodes the combined signal.

Description

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AI Technical Summary

Benefits of technology

The technical effect of this patented technology allows devices that are sensitive enough but cannot be too hot or have issues with receiving signals from other electronic components due to their own frequencies. This improves its performance without requiring excessive power consumption.

Problems solved by technology

This patented technical solution describes a system called Ground Wave Digital Receiver® which uses multiple tuners and filters to enhance reception quality without requiring much more energy than necessary or generating unwanted noise levels. Additionally, the current methods involve cooling down parts at specific locations near the radios themselves, leading to increased temperatures during operation. To address these issues, some systems include thermoacoustic converters placed close enough proximities to each other to reduce thermal effects while still providing reliable reception capabilities.

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