KR20040093214A - Method and apparatus for processing key of display device - Google Patents

Abstract

PURPOSE: A key processing device for an image display device and a method therefor are provided to reduce a processing time according to the key input of a remote controller. CONSTITUTION: A key signal processing unit(100) judges whether a signal inputted through a remote controller key receiving unit(20) or a key input unit(30) is a certain key signal, and converts key matching according to the input number of the inputted key signal, a continuous time of the key signal and the input of an input mode conversion key. A key execution unit(300) performs a corresponding operation according to the key signal processed in the key signal processing unit. An image processing unit(60) processes key information processed in the key signal processing unit to be displayed as an OSD(On Screen Display) type. A microcomputer(200) outputs a control signal to the key execution unit to perform the corresponding function according to the key signal processed in the key signal processing unit, and outputs a control signal to the image processing unit to display the processed key function.

Description

Method and apparatus for processing key of display device

The present invention relates to an image display device, and more particularly, to a key processing apparatus and method for an image display device.

Generally, a TV is included in a video display device. The TV is tuned and demodulated into a voice and a video by selecting and demodulating a broadcast signal according to a channel selected by a user among broadcast signals transmitted from a broadcasting station. And as a video device to output through the speaker, looking at the type, including the most widely used CRT, there is also a TV using LCD, PDP, etc. to satisfy the high-definition / large screen characteristics.

In particular, PDP TVs can be manufactured considerably thinner than conventional CRTs in terms of their structural characteristics, while satisfying the technical requirements as TVs because of their excellent brightness characteristics compared to LCDs. have.

Hereinafter, a key processing apparatus for a video display device according to the prior art will be described with reference to the accompanying drawings.

1 is a block diagram illustrating a key processing apparatus of an image display apparatus according to the prior art.

As shown in FIG. 1, the key processing apparatus of the image display apparatus according to the related art receives a remote controller 10 generating an infrared signal according to a user's request command, and receives an infrared signal generated from the remote controller 10. Through a remote control key receiving unit 20, a key input unit 30 mounted in a predetermined region of the main body of the video display device to receive a user's request command, and through the remote control key receiving unit 20 or the key input unit 30 A microcomputer 40 for outputting a control signal according to the input request command, and an image processor 60 for processing the input video signal to be displayed on the display unit 70 in accordance with the control signal of the microcomputer 40 And a display unit 70 for displaying the image signal processed by the image processing unit 60, and a memory 50 for storing various kinds of information.

Referring to the operation of the key processing apparatus of the image display apparatus according to the prior art configured as described above are as follows.

The key signal input through the remote controller 10 is received by the remote controller key receiving unit 20 and transmitted to the microcomputer 40, and the microcomputer 40 determines the input signal and outputs a corresponding control signal.

At this time, the remote controller 10 is configured such that one key operates only with one function. That is, in order to implement various functions, as many types of keys as the types of functions should be provided.

In addition, conventionally, since a process of inputting a key is uniformly configured, when one key button is input, the same sequence is repeatedly processed sequentially as it is.

That is, in the case of a toggle key for selecting five functions (input mode selection), it is possible to ultimately perform a desired process through four executions that are not necessary to move from the first execution command to the fifth execution command.

Therefore, since the key processing apparatus of the conventional video display is to operate only one key as one function, the key button should also increase as the function is increased, but the size limitation of the remote control should be followed by the increase of the key button. .

In addition, the toggle key for selecting five functions is inefficient because it requires a long time to execute a desired command to execute a desired command.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an apparatus and method for processing a key of an image display device which can shorten the processing time according to a remote control key input.

1 is a block diagram showing a key processing apparatus of an image display apparatus according to the prior art;

2 is a block diagram showing a key processing apparatus for an image display apparatus according to the present invention.

3 to 5 are flowcharts illustrating a key processing method of an image display device according to the present invention.

6 is a table showing a corresponding mode matching relationship according to the number of input mode switching key input times.

Explanation of symbols for main parts of the drawings

10: remote control 20: remote control key receiver

30: key input unit 50: memory

60: image processing unit 70: display unit

100: key signal processing unit 200: microcomputer

300: key execution unit

In order to achieve the above object, a key processing apparatus of an image display device according to the present invention includes a remote control signal receiving unit for receiving a remote control signal, a key input unit and a memory for inputting a user request command, and the remote control. A key signal processing unit for converting key matching according to the input frequency, duration, and input mode switching key input of the key signal input through the signal receiving unit or the key input unit, and performing a corresponding operation according to the key signal processed by the key signal processing unit A key execution unit, an image processing unit processing the key information processed by the key signal processing unit to be displayed in an OSD form, and a control signal to perform a corresponding function according to the key signal processed by the key signal processing unit. The output includes the microcomputer and has its features.

Key processing method of the image display device according to the present invention for achieving the above object in the key processing method of the image display device having a remote control and a key input unit, analyzing the key signal input through the remote control or key input unit, analysis Matching a function corresponding to the received key signal, displaying the matched function on the OSD, and controlling the user to perform the function according to the number of key repetition inputs. .

Key processing method of a video display device according to the present invention for achieving the above object is a key processing method of a video display device having a remote control and a key input unit, the user inputs a key signal through the remote control or key input unit Counting the duration, grasping the input signal to match the corresponding key function, displaying the matched key function on the OSD menu, and whether the input key function continues for a predetermined time or more. There is another feature, including the step of controlling the function to be performed.

In the key processing method of a video display device having a remote control and a key input unit for achieving the above object, if the user inputs the input mode switching key, identifying the mode according to the repetition number of the switching key input by the user; Matching and displaying a corresponding key function according to the identified mode, and checking whether the mode is changed according to whether or not the repetition time delay time of the key signal input by the user exceeds a preset user setting delay time. There is another feature which comprises the step of controlling it to be performed.

Hereinafter, a key processing apparatus and method of an image display device according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram illustrating a key processing apparatus of an image display apparatus according to the present invention, and FIGS. 3 to 5 are flowcharts illustrating a key processing method of the image display apparatus according to the present invention.

As shown in FIG. 2, a key processing apparatus of an image display device according to the present invention includes a remote controller 10 for remotely transmitting a user request command, and a remote controller for receiving a signal transmitted through the remote controller 10. Inputs a signal received through the key receiving unit 20, a key input unit 30 mounted on the main body of the image display device to input a user request command, and the remote control key receiving unit 20 or the key input unit 30 It receives the key signal processing unit 100 and the function value from the key signal processing unit 100 to match with a predetermined function to perform a function according to the key signal, and to determine the key signal to output the corresponding control signal The microcomputer 200 and the key execution unit 300 for performing the actual operation of each key according to a preset program according to the control signal of the microcomputer 200 and the microcomputer 200 can be recognized by the microcomputer 200. A memory 50 for storing an electronic program and various data, and key information determined by the key signal processing unit 100 according to a control signal of the microcomputer 200 to be displayed in an OSD form, And an image processor 60 for processing the input image signal into a displayable signal, and a display unit 70 for displaying the image signal processed by the image processor 60.

In the key processing apparatus of the image display device according to the present invention configured as described above, the key input unit 30 is composed of a plurality of buttons to produce a predetermined electric signal combination each time the button is pressed, and the key signal processing unit 100 Starting of a function including a process to find out which key is an electric signal input from the remote controller key receiving unit 20 or the key input unit 30 according to a predetermined protocol, and then perform a next process in a previously stored function matching table. It finds and matches address.

In addition, the key execution unit 300 receives a command from the microcomputer 200 and performs an actual operation for each key according to a pre-programmed procedure, and the display unit 70 may operate the remote controller 10 or Displays an operation process performed according to the confirmation OSD for the key input from the key input unit 30 or the control signal of the microcomputer 200, or shows the final result after finishing all the processing in the key execution unit 300. Play a role.

The memory 50 stores an operation sequence of how the microcomputer 200 should process the input key, or stores an electronic program that can be recognized by the microcomputer 200.

The key signal processing method of the video display device according to the present invention configured as described above is largely related to the key matching operation and the key repetition counting method, and the key matching method by the input key duration coefficient and the key processing method according to the input mode switching. Divided.

The key matching operation and the key signal processing method according to the number of key repetitions will be described with reference to FIG. 3. First, it is determined whether a key signal is input (S11).

Subsequently, when the determination result (S11), the key signal is input, the input key signal is decoded (S12).

Then, a command according to the decoding is set (S13).

Subsequently, key functions according to the set command are matched (S14).

The matched function is displayed on the OSD menu and the delay time is counted (S15 to S16).

It is determined whether the counted number of repetitions or the delay time exceeds a preset set delay time (S17).

Subsequently, in the determination result (S17), if the counted repetition time or the delay time does not exceed the preset set delay time, it is determined whether the same as the first input key (S18).

As a result of the determination (S18), if it is the same as the first input key, the repetition count is increased and the repetition delay time is initialized (S19 to S20).

On the other hand, if the determination result (S17) (S18), the repetition time whether the delay time exceeds the predetermined time or the same as the initial input key, the currently matched key function is executed as it is (S21).

Therefore, when the display device receives a key input, it first goes through a key decoding process to find out which key is currently being input, sets the interpreted key command after the key decoding is completed, and matches a key function referring to the interpreted key code. Find the program start address for the next operation in the table.

In addition, information about the decoded key is notified to the user by an external display means such as an OSD or an LED, and the user is informed of the acknowledgment, and a delay time for counting the number of key repetitions is counted. When executing the matched key function or when the same key as the initial key is input during the delay time, the number of repetitions is increased, the delay time for recognizing the repetition number is initialized, the repeated key is matched again with another key, and the OSD is displayed.

In addition, it repeats the process of checking whether the same key is repeatedly input during the delay time to increase the number of repetitions, matching the function again, and displaying the OSD for the changed key again. If exceeded, the user determines that the desired final key moves to the last matched key function and performs the remaining key processing operations.

Referring to FIG. 4, a key matching method based on an input key duration coefficient determines whether a key signal is input (S31).

Subsequently, the determination result (S31), if there is a key signal input counts the duration of how long the input key is maintained (S32).

In operation S33, the input key signal is decoded.

A command according to the decoding is set, and corresponding key functions are matched (S34 to S35).

The set key function is displayed through the OSD (S36).

Subsequently, it is determined whether the input key input is continued (S37).

As a result of the determination (S37), if the key input is continued, it is determined whether the duration time exceeds the preset repetition recognition reference time (S38).

Subsequently, the determination result (S38), if the duration exceeds the preset repetition recognition reference time, it is determined how many integer multiples of the key input duration repetition recognition reference time (S39).

In addition, it is determined whether the test result lasts more than an integer multiple (S40).

Subsequently, if the determination result (S40), if the integer lasts more than one, the number of repetitions is increased and the process returns to the step (S34) (S41).

On the other hand, if the determination result (S37) (S38) (S40), the key input does not continue, the duration does not exceed the repetition recognition reference time, or does not last more than an integer multiple times the currently matched key function is executed (S42).

Thus, in the process of decoding the first time the adjustment key is input, setting a key command, matching the corresponding key function and displaying the OSD, the key input duration is continuously counted from the key input.

Next, it checks whether the key input continues and if there is no key input, the key is moved to the start address of the program that was first matched and key processing is performed. If the key input continues and this duration exceeds the key repetition reference time, it checks how many integer multiples of the key repetition reference time is increased and increases the number of repetitions every time the integer time is continued. Match to perform an operation on a key other than the first key.

Therefore, if there is no more key input while checking the key input duration in this way, it moves to the start address of the last matched function and finishes the remaining key execution process.

In addition, when the execution process according to the input mode switching is described with reference to Figure 5, it is determined whether the user has input the input mode switching key (S51).

Subsequently, when the determination result (S51), the input mode switching key is input, the mode to be moved is determined by dividing the input repetition number of the input switching key by the sum of the total input modes (S52 to S53).

In operation S55, the corresponding key function is matched and the matched function is displayed on the OSD.

In step S56, the delay time count starts.

Subsequently, it is determined whether the counted repetition time recognition delay time exceeds a preset user setting delay time (S57).

As a result of the determination (S57), if it does not exceed the preset user setting time, it is determined whether the same as the first input key (S58).

Subsequently, if the same key as the first input key is input, the determination result (S58) increases the number of repetitions, initializes the repetition number delay time, and returns to step S52 (S59).

On the other hand, if the determination result (S57) (S58), the repetition time recognition delay time exceeds the preset user set delay time or is not the same as the first input key, the currently matched key function is executed (S61).

That is, when the input switching key comes in, the repetition number is divided by the sum of the total input modes to determine which mode to move to. As shown in Fig. 6, if the pre-key input mode is RGB1, the key is initially assigned to the next switching mode RGB2, and the OSD for the currently assigned key is displayed.

Subsequently, if the repeat key is input for the time set by the user, the repeat count is increased and if the key is assigned again, it is reassigned to Comp1.In this way, if the key is repeatedly assigned to the repeat count, Comp2, AV, S- Assigned in the order of Video, RGB1, etc.

In other words, to switch from RGB1 to S-Video, a key is assigned to each input key, and after the key mapping, OSD display and relatively long time to execute the key do not need to be executed uniformly.

As described above, the key processing apparatus and method of the image display device according to the present invention have the following effects.

First, by efficiently separating and processing the process of the key input through the key input unit mounted on the remote controller or the main body of the video display device, the load for continuously performing a large amount of work in a short time can be reduced. It can be used to optimize the design of the system by allowing the processing power to be used elsewhere.

Second, since a plurality of functions can be assigned to one key in the remote control or local key configuration, it is possible to achieve economics in designing the remote control or key input unit.

Third, the response speed according to the key signal input by the user can be improved.

Claims (7)

In a video display device having a remote control key receiving unit for receiving a remote control signal, a key input unit for inputting a user request command, and a memory, A key signal processor for determining which key is a signal input through the remote controller signal receiver or key input unit, and converting key matching according to the input frequency, duration, and input mode switching key input of the input key signal; A key execution unit that performs a corresponding operation according to the key signal processed by the key signal processing unit; An image processor which processes the key information processed by the key signal processor to be displayed in an OSD form; And, And a microcomputer outputting a control signal to perform a corresponding function according to the key signal processed by the key signal processing unit, and outputting a control signal to the image processing unit so that the processed key function can be displayed. Key processing apparatus for a video display device. In the key processing method of a video display device having a remote control and a key input unit, Analyzing a key signal input through the remote controller or a key input unit and matching a function corresponding to the analyzed key signal; Displaying the matched function in an OSD; And, And controlling a user to perform a corresponding function according to the number of key repetition inputs. The method of claim 2, The controlling of the function is performed according to the number of key repetition inputs. Executing the currently matched key function when the number of times of repeating the user inputs a key exceeds a preset time set by the user; And increasing the number of repetitions and initializing a delay time for recognizing the number of repetitions when the same key as the first key is input during the delay time. In the key processing method of a video display device having a remote control and a key input unit, Counting an input key duration when the user inputs a key signal through the remote controller or a key input unit, matching the corresponding key function by grasping the input signal; Displaying the matched key function as an OSD menu; And, And controlling the function to be performed according to whether the input key function continues for a predetermined time or more. The method of claim 4, wherein The controlling of the corresponding function is performed Determining whether the sustained time exceeds a preset repetition recognition reference time when the key input is continued; Checking the number of integer multiples of the key input duration repeating reference time when the preset repeating reference time is exceeded; Increasing the number of repetitions each time the above integer multiple times is maintained; And executing the currently matched key function if the key input does not continue or if the duration does not exceed the preset repetition recognition reference time. In the key processing method of a video display device having a remote control and a key input unit, If the user inputs the input mode switching key, determining a corresponding mode according to the number of repetitions of the switching key input by the user; Matching and displaying a corresponding key function according to the identified mode; And, And determining whether the mode is changed according to whether or not the repetition time delay time of the key signal input by the user exceeds a preset user setting delay time and controlling the corresponding function to be performed. How to handle your device's keys. The method of claim 6, Identifying the mode is And dividing the number of repetitions by which the user inputs the input mode switching key into the sum of the total input modes and grasping the preset mode according to the divided value.