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Radio pd and sad coexistence circuit, radio and method for playing radio

A radio and circuit technology, applied in the direction of broadcast receiving circuit, electrical components, transmission system, etc., can solve the problem of not being able to deal with the quality of the signal received by the antenna, and achieve strong practicability, strong received signal, and reduced signal interference Effect

Active Publication Date: 2018-08-14
SHENZHEN HANGSHENG ELECTRONICS
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AI Technical Summary

Problems solved by technology

However, in many cases, one mode cannot well deal with the quality of the antenna receiving signal, and cannot well meet the needs of users.

Method used

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  • Radio pd and sad coexistence circuit, radio and method for playing radio
  • Radio pd and sad coexistence circuit, radio and method for playing radio

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0020] PD (Phase Diversity) mode: In the case of dual Tuners (radio signal input terminals) and dual antennas, the radio can select a tuner with a better signal to play the radio station through the PD mode.

[0021] PD use: When the signal of Tuner1 is greatly disturbed and the sound quality is not very clear, you can use the algorithm of PD to use Tuner2 with better signal to play the radio station.

[0022] Principle of PD implementation: In hardware, PD enters into Tuner1 and Tuner2 respectively through two antennas; in software, it needs to compare and calculate the signals received by the two tuners, and calculate a better signal for playback.

[0023] SAD (Scanning Antenna Diversity, Antenna Diversity) mode: One tuner is only used to play the radio station, and the other tuner is only used to scan the background.

[0024] SAD use: When...

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Abstract

The invention provides a radio PD and SAD coexistence circuit, a radio set and a radio station play method, and belongs to the field of radio sets. The radio PD and SAD coexistence circuit comprises an integrated circuit U1, a first antenna signal reception module, a second antenna signal reception module and a signal selection control module, wherein the output end of the first antenna signal reception module is connected with the input end of the input end of the signal selection control module and the AM signal input end of the integrated circuit U1, the output end of the second antenna signal reception module is connected with the input end of the signal selection control module and the first FM signal input end of the integrated circuit U1, and the output end of the signal selection control module is connected with the second FM signal input end of the integrated circuit U1. According to the radio PD and SAD coexistence circuit, the radio set and the radio station play method, two modes can be switched, the practicality is high, signal interference can be effectively reduced via an algorithm, and the reception signals are stronger.

Description

technical field [0001] The invention relates to the field of radios, in particular to a radio PD and SAD coexistence circuit, a radio including the circuit, and a method for the radio to play a station. Background technique [0002] Radios are already a very common product in car systems. On radios with RDS (RDS is a special radio broadcast developed by the British BBC Broadcasting Corporation, that is, Radio Data System.), in China, it generally only contains PD or only SAD. Because the hardware needs to determine which radio signal input terminal the two antenna signals will enter. However, in many cases, one mode cannot well deal with the quality of the signal received by the antenna, and cannot well meet the needs of users. Contents of the invention [0003] In order to solve the problems in the prior art, the invention provides a radio PD and SAD coexistence circuit. [0004] The radio PD and SAD coexistence circuit of the present invention includes an integrated c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04H40/18H04B1/16
Inventor 何照丹孙志雄
Owner SHENZHEN HANGSHENG ELECTRONICS
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