KR970055356A - Car Audio's Radio Frequency Memory System - Google Patents

Abstract

The present invention can store the strong electric field broadcasting frequency of another region when moving to another region by long distance driving, apart from the broadcasting frequency stored in the memory unit by the automatic memory function. The present invention relates to a radio broadcasting frequency memory system of a car audio system, wherein an auto memory unit connected to a microcomputer that controls the AM / FM tuner in a car audio AM / FM tuner is received in a current region by an auto memory button. The broadcasting frequency of the system is automatically stored in the order of electric field strength, and the auxiliary memory unit stores the broadcasting frequency of the strong electric field received from other regions by the ATP button. Broadcast frequencies in other regions can be supplemented by the auto memory function without deleting the frequencies. By allowing memory to be stored in memory, it is convenient not to repeatedly memorize the broadcasting frequency whenever the reception area is changed by long distance driving.

Description

Car Audio's Radio Frequency Memory System

Since this is an open matter, no full text was included.

1 is a schematic block circuit diagram according to the present invention.

Claims (3)

The FM radio frequency amplifier 12, in which the radio frequency transmitted from the broadcasting station is applied through the antenna 10, and the FM radio frequency amplifier 12 connected to the FM radio frequency amplifier 12 and separated into an intermediate frequency and an audio frequency (14), a multiplexer 16 connected to the FM intermediate frequency amplifier 14, an equalizer amplifier 18 connected to the multiplexer 16, and an equalizer amplifier 18 connected to and applied. Power amplifier 20 for amplifying the voice signal to be output through the speaker 22, and AM radio / intermediate frequency amplification to amplify the radio frequency applied through the antenna 10 to the equalizer amplifier 18 The unit 30 is connected to the FM intermediate frequency amplifier 14 and the AM radio / intermediate frequency amplifier 30 and controls the output of the broadcast frequency and is received in the other region and the broadcast frequency that can be received in the current region. Possible broadcasting frequencies overlap The microcomputer 60 controlling the memory to be stored in each memory unit, and the microcomputer 60 and the microcomputer 60 and the FM intermediate frequency amplifier 14 and the AM radio / intermediate frequency amplifier 30 are connected to each other. Switching unit 40 for outputting the AM broadcast frequency or FM broadcast frequency through the speaker 22 by the control of, and the automatic memory connected to the microcomputer 60, the strong electric field broadcast frequency in the current receiving area is memorized The auxiliary memory unit 70, which is connected to the unit 50, the microcomputer 60 and receives the strong electric field broadcasting frequency received in another region, and the strong electric field broadcasting in the current receiving area, which is connected to the microcomputer 60. Auto memory button 80 to operate when the memory is stored in the auto memory unit 50, and the microcomputer 60 is connected to operate when the memory of the electric field broadcasting frequency of the other region in the secondary memory unit 70 It consists of AT fiber (90) Car radio radio frequency memory system, characterized in that. A first step S1 of determining whether the car audio is in the AM / FM tuner mode; and a second step of determining whether the auto memory button 80 operates for a predetermined time or more when the AM / FM tuner mode is in step S1. In operation S2 and when the automatic memory button 80 is operated for more than the set time in the second step S2, the automatic memory unit 50 transmits the broadcasting frequency of the strong electric field in the order of FM1 → FM2 → AM → LW. If the third step (S3) to temporarily memory and the automatic memory button 80 in the step (S2) to operate less than the set time or less by scanning the broadcast frequency of the strong electric field stored in the automatic memory unit 50 in order The radio broadcasting frequency memory system of car audio, characterized in that the blur comprises a fourth step (S4). A tenth step S10 of determining whether the car audio is in the AM / FM tuner mode; and a twenty step of determining whether the ATP button 90 operates for a predetermined time or more in the step S10 of the AM / FM tuner mode. (S20) and when the ATP button 90 is operated for a predetermined time or more in the step S20, the auxiliary memory unit 70 temporarily stores the broadcasting frequency of the strong electric field in the order of FM1 → FM2 → AM → LW. Forty-seventh step (S30), if the ATP button 90 is operated for less than the set time in the step (S20) step 40 to scan and blur the broadcast frequency of the strong electric field stored in the auxiliary memory unit 70 in order Car audio radio broadcast frequency memory system, characterized in that consisting of (S40). ※ Note: The disclosure is based on the initial application.