KR20040084209A - Volume automatic control system of a radio with a microwave oven and the method thereof - Google Patents

Abstract

PURPOSE: An automatic volume control device and a method of a microwave oven used for a radio are provided to automatically prevent the hearing inferiority of the radio caused by noise generated in driving the microwave oven and to maximize satisfaction and convenience for consumers. CONSTITUTION: In an automatic volume control device for a microwave oven used for a radio, a signal for driving the microwave oven is input from a microwave oven control unit(60) to a radio control unit(30) while the radio control unit outputs a predetermined audio signal through a speaker unit(50) by driving a radio circuit to a key input of an operating panel(70). The radio control unit receives the signal and controls a volume IC(Integrated Circuit,46) to output the audio signal of the radio to be amplified to the constant volume.

Description

VOLUME AUTOMATIC CONTROL SYSTEM OF A RADIO WITH A MICROWAVE OVEN AND THE METHOD THEREOF

The present invention relates to an automatic volume control device for a microwave oven and a method thereof, and more particularly, to automatically adjust the volume of a radio when the microwave oven is driven in a microwave oven including a radio circuit and a speaker unit. The present invention relates to a volume automatic control device for a microwave oven and a method for preventing the radio from being deteriorated due to noise generated when the microwave oven is driven.

In general, when housewives stay in the kitchen for food preparation or the like, they often relieve the boredom of household chores and listen to the radio for various useful information.

Accordingly, in order to alleviate the inconvenience of having to have a separate radio in the kitchen for listening to the radio, the radio can be combined and used in various kinds of kitchen utensils such as a sink, a dishwasher, and a microwave oven. There is a trend.

1 is a perspective view showing the appearance of a general microwave oven, a radio circuit (not shown) is built into the body portion 10 of the microwave oven, while the user on the right side of the front of the body portion 10 An operation panel 12 is provided to set a program according to individual cooking characteristics and to selectively operate a radio circuit embedded in the body portion, and both sides of the body portion 10 are provided with the radio circuit. A speaker unit 14 for outputting a voice signal generated in accordance with the operation is provided.

In addition, the front of the body portion 10 of the microwave oven, the door 16 is installed to selectively open the door 16 to open and close the cooking chamber 18 therein, the body portion A magnetron, a high voltage transformer, a high frequency capacitor, a low pressure transformer, etc. are installed inside the 10 to supply the high frequency to the cooking chamber 18, and a blower fan for cooling the heat generated in the above configuration is rearward. Is installed on.

However, in the microwave combined microwave oven configured as described above, when a user inputs an operation panel for using a microwave oven while listening to the radio by operating a radio circuit, a blower fan or the like is driven by driving the microwave oven. During this operation, noise is generated according to this operation, and it is very difficult to accurately listen to a voice signal of a radio output through the speaker due to the noise.

Accordingly, the present invention has been made to solve the above-described problems, the object of which is to automatically adjust the volume of the radio when a signal for use of the microwave is input when listening to the radio using a radio-compatible microwave oven. The present invention is to provide an automatic volume control device and a method for controlling a microwave oven that can be prevented from being deteriorated due to noise generated when the microwave oven is driven.

In order to achieve the above object, the automatic volume control apparatus for a microwave oven according to the present invention is a microwave oven, and the radio controller controls a radio circuit in response to a key input of an operation panel to generate a predetermined voice signal. If a signal for driving the microwave is input from the microwave control unit to the radio control unit while outputting through the speaker unit, the radio control unit receives the signal and outputs the audio signal of the radio in amplified state by a predetermined size. And configured to control the IC.

On the other hand, the automatic volume control method of the microwave oven according to the present invention, in the microwave oven, the AM / FM selection mode and frequency under the control of the control unit when the radio switch is turned on (ON) in the microwave oven A first step of operating a radio circuit according to a tuning state of the audio signal and outputting a predetermined voice signal through the speaker unit; and when the microwave switch is switched to an ON state during the output of the voice signal, the microwave control unit Is a second step of controlling the microwave to be driven according to a key input of a user's operation panel, and at the same time, the radio controller controls the volume IC so that the voice signal is amplified in a predetermined size; It is determined whether to terminate the radio signal is restored to the original state when the driving is terminated by determining whether or not A third step in which the fisherman controls the volume IC; and a fourth step in which the radio control unit performs control to continuously output or terminate the voice signal by determining an ON / OFF state of the radio switch. Characterized in that made.

According to the present invention configured as described above, if the microwave oven is driven in response to a key input of a user's operation panel while listening to a radio voice signal using a microwave combined microwave, the radio control unit according to the volume IC to amplify the radio volume The audio signal amplified to a predetermined size or more is outputted through the speaker unit.

1 is a perspective view showing the appearance of a general microwave oven,

2 is a block diagram showing an automatic volume control device for a microwave oven according to the present invention;

3 is a flow chart showing the operation of the automatic volume control device for a microwave oven according to the invention.

Explanation of symbols on the main parts of the drawings

10: body, 12, 70: operation panel,

14,50: speaker unit, 16: door,

18: cooking chamber, 20: control unit,

30: radio control section, 42a: FM antenna,

42b: AM antenna, 44: radio part,

46: volume IC, 48: AMP,

60: microwave control unit, 62: high frequency output unit,

72: radio control panel, 74: microwave control panel,

80: display driver, 82: display,

90: power supply.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

2 is a block diagram showing an automatic volume control device for a microwave oven according to the present invention, the automatic volume control device for a microwave oven according to the present invention drives the radio circuit according to the operation of the user operation panel 70 Microwave control unit 60 for driving the microwave for cooking food according to the operation of the radio control unit 30 and the operation panel 70 of the user is provided.

At this time, the radio control unit 30 and the microwave control unit 60 may be configured as a single control unit of course.

Meanwhile, the radio controller 30 includes a radio unit 44 for converting a signal input through the FM antenna 42a or the AM antenna 42b into an audible frequency under the control of the radio controller 30, and the radio controller. A volume IC 46 that receives a control signal from the controller 30 and adjusts a volume level, and amplifies an input signal of a corresponding frequency according to the value of the volume IC 46, and then converts it into a voice signal through the speaker unit 50; The output AMP 48 is connected.

The microwave control unit 60 includes a high frequency output unit 62 for outputting a high frequency for cooking food in a state in which food is stored in a cooking chamber of the microwave, a high voltage and low voltage transformer, a rectifier, and a blower fan ( Above, not shown) or the like.

In addition, the control unit 20 of the volume automatic control device of the microwave combined microwave oven is connected to a power supply unit 90 for receiving a predetermined power from the outside to supply the device, according to the user's key input of the microwave oven An operation panel 70 for selectively driving a radio mode and a microwave mode, and a display driver 80 for displaying an operation state of the device according to the operation of the operation panel 70 through the display unit 82. Is connected.

At this time, the operation panel 70 is provided with a radio operation unit 72 and a microwave operation unit 74, the radio operation unit 72 and the switch unit for operating (ON) / OFF (OFF) the radio mode and , A switching switch unit for AM / FM mode selection, a frequency selection unit for tuning a predetermined frequency, a volume control unit for volume control, and the like, while the microwave operation unit 74 has food to be cooked. And a selection switch for selecting the type, a time switch for setting the cooking time, a temperature control switch for adjusting the cooking temperature, and the like.

Here, the radio control unit 30 is driven according to the invention by the user operating the radio control unit 72 of the operation panel 70, the radio unit 44 is driven to the corresponding sound signal according to a predetermined frequency to the speaker While outputting through the unit 50, when the corresponding signal according to the driving of the microwave mode is input from the microwave control unit 60 by the microwave operation unit 74 of the operation panel 70, the radio control unit The control unit 30 controls the volume IC 46 while the microwave mode is being driven so that the voice signal is output through the speaker unit 50 while being amplified by a predetermined size.

Accordingly, the user can minimize the state in which the listening state of the radio voice signal output through the speaker unit 50 is deteriorated by the noise generated when the microwave oven is driven.

Next, the operation of the present invention made as described above will be described in detail with reference to FIGS. 2 and 3.

First, in step 100, it is determined whether the user has turned on the radio switch provided in the radio control unit 72 of the operation panel 70. If the radio switch is in the OFF state, the operation is performed in step 300. It is determined whether the microwave oven switch provided in the microwave oven operating unit 74 of the panel 70 is in an ON state.

In this case, when the microwave switch is in the OFF state, a standby state is maintained, and when the microwave switch is in the ON state, a series of processes for driving the microwave oven are performed.

Here, the process of driving the microwave according to the input of the user of the microwave operating unit 74, the user through the microwave operation unit 74 of the operation panel 70 according to the food to be cooked in step 310 When the operation is performed, the microwave control unit 60 determines whether an operation of the start button provided in the operation panel 70 is input in step 320.

If it is determined in step 320 that the start button is input, the process proceeds to step 330 where the microwave control unit 60 counters the cooking time according to a user's key operation, and operates the display driver 80 to display the state. While the control is performed to be displayed through the display unit 82, in step 340, the high frequency is output through the high frequency output unit 62 to cook the food stored in the cooking chamber by the set time and method.

In addition, in step 350, the microwave control unit 60 determines whether an arbitrary time set by the user has arrived on the basis of the cooking time counter. The high frequency output unit 62 controls the output of the high frequency to stop, and outputs a predetermined voice signal indicating that cooking of the dish is completed, thereby ending a series of processes according to the driving of the microwave oven.

On the other hand, if it is determined in step 100 that the radio switch is turned on, the process proceeds to step 110 where the radio controller 30 controls the AM / FM mode and frequency according to the user's operation of the radio control unit 72. After determining the tuning state, the radio unit 44 is operated under the control of the radio controller 30 in step 120 to output a predetermined voice signal according to the selected frequency to the outside through the speaker unit 50 (step 130).

In this case, when the corresponding signal indicating the state in which the switch of the microwave is switched to the on state from the microwave control unit 60 is input to the radio controller 30 (step 140), in step 150, Simultaneously with driving, the radio control unit 30 controls the volume IC 46 to output the audio signal through the speaker unit 50 while amplifying the voice signal by a predetermined predetermined size (step 160).

In operation 170, the microwave control unit 60 determines whether a corresponding signal for terminating the driving of the microwave is input. When the microwave is driven, the operation returns to operation 160. While the control is performed to continuously output the amplified voice signal at the volume level, when the signal of the microwave control unit 60 indicates that the driving of the microwave is terminated, the control proceeds to step 180. The radio controller 30 controls the volume IC 46 to return the voice signal to the original volume level set by the user, and then returns to the original volume level set by the user in step 190. Control is performed to output a signal to the outside through the speaker unit 50 (step 190).

Accordingly, when the user cooks using the microwave while listening to the radio voice signal using the radio mode of the microwave combined with the microwave, the volume level of the radio voice signal is automatically set to a predetermined size only when the microwave oven is driven. Since the amplified output is amplified, the noise generated when the microwave oven is driven can be eliminated.

On the other hand, in step 200 to determine the on (ON) / off (OFF) state of the radio switch under the control of the radio control unit 30, accordingly determines whether to output the audio signal of the corresponding frequency according to the user's selection do.

According to the present invention made as described above, there is an effect that can automatically solve the poor listening state of the radio due to the noise generated when driving the microwave when listening to the radio using a radio-compatible microwave oven, Accordingly, there is an effect that can maximize the satisfaction and convenience of consumers.

Claims (2)

In the microwave oven, When a signal for driving the microwave is input from the microwave control unit to the radio control unit while the radio control unit drives a radio circuit to output a predetermined voice signal through the speaker unit according to the key input of the operation panel, the radio control unit is And a volume IC for controlling the volume IC so that the audio signal of the radio is amplified by a predetermined magnitude upon receiving a signal. In the microwave oven, When the radio switch is in a microwave oven, the radio circuit is operated under the control of the control unit according to the AM / FM selection mode and the tuning state of the frequency, and outputs a predetermined voice signal through the speaker unit. Step one, When the microwave switch is switched to the ON state during the output of the voice signal, the microwave controller controls the microwave oven to be driven according to a key input of a user's operation panel, and the radio controller controls the voice signal to be constant. A second step of controlling the volume IC so as to be output in a magnitude amplified state; Determining, by the radio controller, whether or not the microwave oven is to be terminated, and when the driving is terminated, controlling the volume IC by the radio controller so that the amplified voice signal is restored to its original state; By determining the ON / OFF state of the radio switch, the radio control unit has a fourth step of controlling the audio signal to be continuously outputted or terminated. Way.