KR100274758B1 - Device of time reservation for radio program and the same method - Google Patents

Abstract

PURPOSE: A device and a method for reserving time of a radio program, are provided to store the time and frequency of a corresponding program. And the device and method are provided to automatically convert a frequency to the frequency inputted by a user in a radio mode, and to make a front channel speaker output a radio program and make a rear channel speaker output music from a tape or a CD(Compact Disk) in a tape or CD mode, when a time stored by the user is reached. CONSTITUTION: A key input circuit(10) stores a reserved time and a specific frequency. A microcomputer(20) controls the movement to the specific frequency and the operation according to a set time, and the return to a frequency of a prior mode. The first sound control circuit(30) controls a sound volume outputted through speakers installed in a driver seat and an assistant seat. The second sound control circuit(40) controls a sound volume outputted through speakers installed in rear seats. If a tape mode and a radio mode are selected together, signals are made to be delivered to the sixth filter(65), not to the fifth filter(64) due to 'on' of the second transistor(40a), as the second mute signal outputted from the microcomputer(20) is high. Accordingly, music is outputted to a right speaker(70b) of a rear seat. Signals are made to be delivered to the eighth filter(67), not to the seventh filter(66) due to 'on' of the fourth transistor(40b), as the second mute signal outputted from the microcomputer(20) is high. Accordingly, music is outputted to a right speaker(70d) of a rear seat.

Description

Radio program time reservation device and method

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to car audio, or audio used at home. In particular, drivers who specialize in driving often listen to the radio all day long. If you want to listen to a radio program that is broadcasted through a radio at a specific time, you can enter the program time zone and the frequency of the program you want to listen to in the car audio through the key input unit, in any mode (for example, tape or compact disc). It automatically switches to Radio mode, allowing you to listen to programs in the scheduled time zone, and also to allow you to listen to music and radio broadcasts from tape or Compact Disk simultaneously. A reservation apparatus and method are provided.

Conventional vehicle audio or home audio system, as shown in Figure 1, the radio receiver (1) for outputting an analog signal through RF (Radio Frequence) / IF (Intermediate Frequence) amplification and detection, and tape or CD Tape / CD player 2 for reproducing and outputting an audio signal, a volume control unit 3 for adjusting the volume of sound, and amplifying the signal output from the volume control unit 3 so that a user can listen to it. The power amplifier unit 4 which controls the overall vehicle audio according to a basic specification by receiving a key input, and the LCD (Liquid Crystal Display) segment by receiving the data of the microcomputer 5. LCD driver 6 for controlling the lighting of the) and the LCD display unit 7 for outputting the signal output from the LCD driver 6 for the user to see.

In the radio mode, the frequency received from the radio receiver is controlled by the microcomputer so that the correct frequency can be obtained and output to the volume control unit. The volume control unit adjusts the sound and outputs it to the power amplifier unit. Amplify as much and output through speaker.

On the other hand, when the microcomputer receives a key to control the radio mode and tape mode and outputs data to the LCD driver, the LCD driver receives data from the microcomputer and controls the lighting of the segment to output the data through the LCD display unit. .

The volume control unit may be a mechanical volume and an electronic volume. In the case of the mechanical volume, the volume control unit is divided into a volume unit, a balance unit, and a fader unit, and in the case of an electronic volume, a balance unit and a fader unit are used. Wealth is united.

However, the conventional vehicle audio or audio used in the home configured as described above should select a broadcast program that the user frequently listens to store the frequency, or find the frequency of the program that the user wants to listen to using a tuner. If you are listening to a tape or CD in a mode other than the radio mode, you may not be able to listen to the program in the time zone you want to listen to. When the situation to listen to the traffic information occurs through the tape or CD mode (Off) and to switch to the radio mode, the driver who had to concentrate on driving had a problem that can cause a traffic accident.

An object of the present invention is to solve the above-mentioned conventional problems, in particular, to store the time zone and frequency of the program that the user wants to hear through the key input unit, when the time stored by the user in the radio mode Automatically switches the frequency to the frequency range input by the user, and if the user is listening to the tape or CD mode instead of the radio mode, the microcomputer will turn on the front channel speakers installed in the driver's seat and passenger seat. The rear-channel speaker is equipped with a rear seat to continue to listen to music output from the tape or CD to provide a radio program time reservation device and method that can listen to the radio mode and tape mode at the same time.

In order to achieve the above object, the present invention provides a radio program time reservation apparatus comprising: a key input unit capable of storing a separate interval and frequency to be listened to; A microcomputer controlling the first half of the key input unit, moving to a specific frequency stored in the key input unit, operating for a reserved time, and then returning to a previous frequency region of a previous mode, a tape, or a CD mode; A first sound control unit controlling a volume output through a speaker installed in a driver's seat and a passenger seat of the vehicle; And a second sound control unit for controlling the volume output through the speaker installed in the rear seat of the vehicle.

1 is a block diagram showing the configuration of a conventional vehicle audio system;

2 is a block diagram showing a radio program time reservation apparatus of the present invention;

3 is a control flowchart showing a radio program time scheduling method of the present invention.

* Explanation of symbols for main parts of the drawings

10: key input unit 20: microcomputer

30: first sound control unit 30a: first transistor

30b: third transistor 40: second sound control unit

40a: second transistor 40b: fourth transistor

50: volume control unit 60: the first filter unit

61: second filter part 62: third filter part

63: fourth filter unit 64: fifth filter unit

65: sixth filter portion 66: seventh filter portion

67: eighth filter portion 68: ninth filter portion

70a: front right speaker 70b: rear right speaker

70c: Front left speaker 70d: Rear left speaker

80a: first mute terminal 80b: second mute terminal

Hereinafter, an embodiment according to the spirit of the present invention and the radio broadcast reservation listening apparatus and method configured as described above will be described in detail with reference to the accompanying drawings.

<Example>

As shown in FIG. 2, the key input unit 10 is a device for inputting time and frequency desired by the user to connect to the signal input terminal of the microcomputer 20, and the microcomputer 20 is connected to the key input unit 10. A device for controlling the first sound control unit 30 and the second sound control unit 40 by receiving data, and a base terminal and a first terminal of the first transistor 30a and the third transistor 30b of the first sound control unit 30. It is connected to the base terminal of the 2nd transistor 40a of the 2 sound control part 40, and the 4th transistor 40b. Then, the first sound controller 30 is connected to the signal input terminal of the right speaker 70a of the front channel and the right speaker 70b of the rear channel, and the second sound controller 40 is connected to the left speaker 70c of the front channel. It is connected to the signal input terminal of the left speaker 70d of the rear channel.

Hereinafter, the operation of an embodiment configured as described above will be described.

First, when the user inputs the time and frequency of the program to be listened to using the key input unit 10, the microcomputer 20 searches for the automatically input frequency when the input time is input through the key input unit 10. For example, if you want to listen to traffic information broadcast every 57 minutes, enter the start time [Start *: 57] first, then set the end time [End *: 00] and set the frequency of the program you want (eg For example, if you enter 95.9MHz, the program broadcasts at 95.9MHz every 57 minutes lasts 3 minutes, and after 3 minutes, it returns to the previous radio frequency in the radio mode before 95.9MHz and tape mode in the tape mode.

For example, if the car's audio mode is the radio mode, the user always listens to the flexible walk which is broadcast from 89.1 MHz from 14:00 to 16:00. [Start *: 14:00] and [End: 16:00 ], While listening to another program, at 14:00, the first mute terminal 80a is turned on and the second mute terminal 80b is turned off in the microcomputer 20 so that the right channel of the radio is turned on. The audio signal inputted through the left channel and the left channel passes through the volume control unit 50, and the right speaker 70a of the front channel, the left speaker 70c, the right speaker 70b of the rear channel, and the left speaker 70d. When the voice is outputted through 16 o'clock and 16 o'clock, the microcomputer 20 switches the frequency to the frequency domain before 14:00.

On the other hand, when the vehicle audio mode is a tape or CD mode, the frequency of 89.1 MHz of the flexible walk beginning at 14:00 and ending at 16:00 as described above is stored in the audio microcomputer 20 using a key input device. Until 14:00 was listening to music on tape in tape mode.

At 14:00, the second mute terminal 80b becomes HIGH and the first mute terminal 80a becomes low in the microcomputer 20 so that the first transistor 30a and the third transistor 30b are turned off. Since the first transistor 30a and the third transistor 30b are turned off, signals input through the right channel and the left channel of the radio pass through the first filter unit 60 and the third filter unit 62. The music is output through the right speaker 70a of the front channel and the left speaker 70c of the front channel.

Meanwhile, in the current tape mode, music is output through the ninth filter unit 67. The right channel and the left channel of the tape are provided through the volume control unit 50 to the sixth filter unit 64 and the eighth filter unit ( 67, music flowing from the tape can be listened to through the right speaker 70b of the rear and the left speaker 70d of the rear.

On the other hand, when listening to music through the tape or CD in order to pass through the ninth filter unit 67 through the left channel and the right channel of the tape is applied to the volume control unit 50 is the volume control unit 50 The right speaker 70a of the front channel via the fifth filter unit 64, the right speaker 70b of the rear channel via the sixth filter unit 65, and the left side of the front channel via the seventh filter unit 66 are Music is outputted through the speaker 70c and the eighth filter unit 67 through the left speaker 70d of the rear channel.

As described above, the apparatus and method for listening to a radio broadcast reservation according to the present invention, by reserving the time and frequency of a program that a user wants to listen to, can listen to a desired broadcast and music for each front / rear seat in a car, and also the driver. The effect is that you can listen to news, traffic and desired broadcasts automatically at the right time, as needed.

Claims (4)

A key input unit for storing a separate time reservation and a specific frequency; A microcomputer controlling the first half to return to the frequency region of the previous mode after operating by the set time by receiving the signal of the key input unit at a specific frequency set; A first sound control unit controlling a volume output through a speaker installed in a driver's seat and a passenger seat of the vehicle; A second sound control unit for controlling the volume output through the speaker installed in the rear seat of the vehicle, When both the tape mode and the radio mode are selected, the fifth filter, the sixth filter, and the second transistor of the second sound controller are turned on because the second mute signal output from the microcomputer is high. The signal does not flow to the filter, the signal flows to the sixth filter, and music is output to the right speaker at the rear side, and the second mute of the seventh filter, the eighth filter, and the fourth transistor of the second sound control unit is output from the microcomputer. Since the fourth transistor is turned on because the signal is high, the signal does not become pruned toward the seventh filter, and the signal flows toward the eighth filter, so that music is output to the right speaker on the rear side. In case of radio mode, if it is a scheduled time, it is determined if it is a reserved time. If it is a reserved time, it is compared with the frequency of the current state. The first mute terminal is set high and the second mute terminal is set low. After performing the normal operation, the time is checked. When the scheduled time passes, the first mute terminal is set to a frequency before the start time. Find the frequency and set the radio to the reserved frequency, the first mute terminal is set to the high, the second mute terminal is set to low, the normal operation and after the end of the program is switched to the previous frequency to operate the radio A mode step; In the tape mode stage, not the radio mode stage, the time is checked to compare the start time of the reservation time. When the start time arrives, the radio is turned on. If the set frequency is the same as the reserved frequency, it is the first mute terminal. Is set to low and the second mute terminal is set to high to operate normally. If the set frequency is not the same as the reserved frequency, the reserved frequency is searched and set. A radio program time reservation method comprising a tape or CD mode operation step of returning to tape mode. 3. The radio mode step of claim 2, further comprising: a first step (S1) of inputting a time and a frequency to be reserved; A second step S2 of determining whether the radio mode or the tape mode is present; A third step (S3) of checking a current time in a radio mode in the second step (S2); A fourth step S4 of comparing the current time with the reserved time; If the time compared to each other in the fourth step (S4) is not a scheduled time, the time of the second step (S2) is continuously checked, and the current time and the reserved time are compared by comparing the current time with the reserved time. A fifth step (S5) for comparing and judging whether the current frequency and the reserved frequency are the same if they are the same; A sixth step (S6) in which the first mute terminal output from the microcomputer is high and the second mute terminal is low when the current frequency and the reserved frequency are the same in the fifth step (S5); A seventh step (S7) of searching for the reserved frequency in the microcomputer when the reserved frequency and the current frequency are not equal to each other in the fifth step (S5); An eighth step (S8) of comparing once again whether the frequency found in the seventh step (S7) is equal to the reserved frequency; If the reserved frequency is not the same as the reserved frequency in the eighth step (S8), and if the reserved frequency and the found frequency is the same, the first mute terminal output from the microcomputer is a high second mute terminal A ninth step S9 of outputting low to perform normal operation; A tenth step (S10) of checking a current time in order to set a time at which the program proceeds and ends when time passes; An eleventh step S11 of comparing the time checked in the tenth step S10 with the ending time; If the result of the comparison in the eleventh step (S11) is not the end time, the time is continuously checked, and if the time is compared, the operation is finished including the twelfth step (S12) of ending the program and returning to the frequency of the previous mode. Radio program time reservation method characterized in that. 3. The method of claim 2, wherein the tape or CD mode step comprises: 20 steps (S20) of checking a current time when the tape mode is selected in the second step (S2) of comparing the radio mode or the tape mode; A twenty-first step S21 of comparing the current time with the reserved start time; A twenty-second step of checking a time continuously when the current time and the scheduled time that are compared in the twenty-first step S21 are not equal to each other; and turning on a radio when the current time and the scheduled time are equal to each other (S22) )Wow; A twenty-third step (S23) of comparing whether the reserved frequency and the frequency set in the video are the same; A twenty-fourth step (S24) in which the first mute terminal output from the microcomputer is low and the second mute terminal is normally operated when the frequencies compared in the twenty-third step S23 are the same; A twenty-fifth step (S25) of searching for a reserved frequency when the reserved frequency and the frequency set in the radio are not the same in the twenty-third step (S23); A 26 th step (S26) of comparing the frequency found in the 25 th step (S25) with the reserved frequency once again; If the frequency value compared in the 26th (S26) is not the same, the reserved frequency is continuously searched. If the compared frequency value is the same, the first mute terminal output from the microcomputer is low and the second mute terminal is high. A twenty-seventh step (S27) in operation; A tenth step (S10) of checking a time to match a time when the time passes; An eleventh step (S11) for comparing and determining the time checked and the ending time in the tenth step (S10); If the comparison time in the eleventh step (S11) is not the end time, continue checking the time, and if the comparison time is the end time, including the twelfth step (S12) to complete the program and return to the frequency of the previous mode Radio program time reservation method characterized in that.

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