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External radio broadcast receiver for computer

A technology of wireless broadcasting and receiving device, applied in the field of external wireless broadcasting receiving device for computer and wireless broadcasting receiving device, can solve the problems of inconvenient installation and waste of resources, etc.

Inactive Publication Date: 2003-06-04
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent actually installs a general wireless broadcast radio in a computer, and its feature is that it can receive and play wireless broadcast signals without driver software, which overcomes some shortcomings of the patent 98218107.8, but it does go from one extreme to another At one extreme, there is almost no connection with the computer, but the DC power supply inside the computer is used, and the control function, multimedia function and its beautiful interface of the computer are not used, which is undoubtedly a waste of resources
Installation is not very convenient

Method used

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  • External radio broadcast receiver for computer
  • External radio broadcast receiver for computer
  • External radio broadcast receiver for computer

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Embodiment Construction

[0011] like figure 1 As shown, the present invention mainly includes: computer 1, standard RS232 serial interface 2, audio interface 3, DC-DC power conversion circuit 4, control circuit 5, FM / AM signal receiving circuit 6, standard RS232 serial interface 2 and computer 1 connection, input the corresponding signal into the follow-up circuit, the DC-DC power conversion circuit 4 converts the ±12V signal of the standard RS232 serial interface 2, and generates +3V level for the control circuit and the frequency modulation / amplitude modulation signal receiving circuit 6, The control circuit 5 receives the control signal from the computer 1, completes the function of controlling the FM / AM signal receiving circuit 6, and the FM / AM signal receiving circuit 6 completes the reception of the radio broadcast FM / AM signal, and also receives the control signal sent by the control circuit 5 After completing the functions of setting and station search, the audio signal output by the FM / AM sig...

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Abstract

The present invention belongs to the field of electronic engineering. The external radio broadcast receiver for computer includes DC-DC converter circuit, control circuit, FM / AM signal receiver circuit and audio output interface. The DC-DC converter circuit converts the + / -12V voltage from RS232 serial interface to +3V voltage for other circuits to use, the control circuit completes the control function based on the control signal from the computer, and the FM / AM signal receiver circuit receives the radio broadcast FM / AM signal and the control signal from the control circuit to complete the setting and station searching functions. The present invention utilizes the hardware resource in computer fully, and the receiver needs no other power supply and is simple, small and low in cost.

Description

technical field [0001] The invention relates to a wireless broadcast receiving device, in particular to an external wireless broadcast receiving device for a computer, which belongs to the field of electronic engineering. technical background [0002] At present, personal computers are not only widely used in scientific research, engineering design, enterprise management, and office document processing, but also more and more widely used in homes, becoming an indispensable tool for people's work, study, and family life. After the development of personal computers towards multimedia computers, the configuration of computer peripherals has become more and more diverse. In addition, the programs of radio stations are characterized by their flexibility, timeliness, richness and convenience. Now they are still one of the main media, and they are also favored by the audience. Along with the extensive application of computer, work and life have become more and more inseparable fro...

Claims

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Application Information

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IPC IPC(8): G06F1/00H04B1/16H04H40/27
Inventor 钱峰田蔚风
Owner SHANGHAI JIAO TONG UNIV