KR100200131B1 - Osd united apparatus of television - Google Patents

Abstract

The present invention provides an OSD-integrated device for a television which can integrate an OSD means with a chroma IC device in a television so as to reduce data communication and ensure high-speed data processing.

Accordingly, the present invention provides a television set including a function setting unit (20) for performing a function operation on an execution / setting of an overall function operation given to a television, and a function setting unit A microcomputer 22 for generating control code data for an OSD display character displayed for the corresponding function operation, an SPI 24 for receiving control code data from the microcomputer 22, A CPU 26 for recognizing and storing the control code data as display control data, a character string storing a character string corresponding to a plurality of OSD display characters, and a character string for reading the data of the character string corresponding to the display control data of the CPU 26 A video memory 32 for generating a character address ADD corresponding to the character string data from the character string storage unit 28 on the basis of the display control data from the CPU 26, An OSD font memory 34 for reading out and outputting the OSD display character corresponding to the first character address ADD and outputting the OSD display character synchronously with the clock pulse from the clock generator 36, And an OSD unit integrated with the chroma IC 100 provided with the serial chroma processor 40 and the serial shifter 38.

Description

OSD integrated device of television

[0001] The present invention relates to an OSD integration apparatus for a television, and more particularly, to an OSD integration apparatus for integrating OSD means for providing an OSD (on-screen display) display menu for various functions assigned to a television with a chroma IC device, To an OSD integration device for a television which enables high-speed data processing.

As is well known, in a television in which a predetermined channel is selected among a plurality of television broadcasting signals transmitted from a plurality of television broadcasting stations and video / audio is reproduced through a CRT and a speaker through video / audio signal processing, Various functions such as an analog level setting function (that is, a contrast level setting, a brightness level setting, a color amount setting, a volume level setting, etc.) and an on / off timer reservation function for a signal can be performed, Since the functions need to be accompanied by the setting operation by the user, it is necessary to display the setting state on the screen.

Accordingly, an on-screen display (OSD) display function is provided to display the setting status of such various functions. In the analog level setting function, a variety of OSD character characters, And inserted into a video signal for reproduction.

Recently, OSD means for generating and outputting an OSD display character is integrated with a microcomputer (Micom) as an overall control means for the television in order to simplify the sub-means incorporated in the television.

FIG. 1 is a block diagram showing a configuration in which a microcomputer and an OSD unit are integrated in a conventional television. Referring to FIG. 1, a function setting unit 2 for setting keys for various function operations given to the television, A microcomputer CPU 4 for controlling the setting and execution states of the functions corresponding to the key setting states of the setting section 2 to be displayed on the OSD display character form and controlling the execution of the function operations, An SPI (Serial Peripheral Interface) 6 for receiving control code data for controlling the output of the OSD display character from the microcomputer CPU 4, an OSD font to be displayed based on the control code data input through the SPI 6 (10) for decoding the display control data from the CPU (8), a display control data for displaying the display control data for the display of the data previously indicated by the display control data decoded by the decoder Be A video memory 12 for generating a character address ADD for the character data to be displayed later by modifying the content of the OSD character data and the OSD character data corresponding to the character address ADD from the video memory 12 And an OSD font memory 14 for outputting OSD character data from the OSD font memory 14 and outputting the OSD character data from the OSD font memory 14 to a clock generated in synchronization with the vertical / horizontal synchronizing signal (V SYNC / H SYNC) And a parallel-to-serial shifter 18 for converting the parallel data to serial data synchronously with the pulse and shifting it to the chroma IC side.

According to the OSD unit integrated with the microcomputer composed of these components, the microcomputer CPU 4 controls the display of the OSD display character according to the function operation corresponding to the key operation from the function setting unit 2, And the CPU 8 recognizes the control code data inputted through the SPI 6 and generates the display control data corresponding thereto.

Accordingly, in the video memory 12, the contents of data according to the OSD display character according to the predetermined function, which has been displayed on the screen before, are replaced with the update display control data, and the character address ADD corresponding to the OSD character data In the OSD font memory 14, the OSD character data corresponding to the character address ADD is read and output to the chroma IC through the shifting operation of the parallel-to-serial shifter 18.

Accordingly, through the OSD display control operation, the OSD display character indicating the operation state or the setting state of the desired function can be displayed on the screen.

However, in the case of the OSD unit integrated with the microcomputer, the CPU 8 recognizes the control code data from the microcomputer CPU 4, generates control display data corresponding to the control code data, and outputs the control display data to the video memory 12 via the serial bus. The microcomputer CPU 4 must update and transmit the data contents different from the contents of the control data according to the OSD display characters previously displayed on the side of the microcomputer CPU 4 so that the data communication amount of the SPI 6 On the other hand, on the video memory 12 side, the data contents previously displayed in accordance with the display control data from the CPU 8 must be updated and replaced with new data contents, which results in a disadvantage that the data processing speed is reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned disadvantages, and it is an object of the present invention to provide an OSD integration device for a television which can integrate OSD means with a chroma IC device in a television, .

According to an aspect of the present invention, there is provided an apparatus for integrating an OSD of a television according to the present invention, comprising: a function setting section for performing a function operation for setting / executing an overall function operation given to a television; A microcomputer for generating control code data for an OSD display character displayed for the corresponding function operation corresponding to an execution / setting operation of the operation; an SPI for receiving control code data from the microcomputer; A CPU for outputting the control code data as display control data, a character string storage unit for storing a character string corresponding to a plurality of OSD display characters and reading data of a character string corresponding to the display control data of the CPU, Based on the control data, a character address corresponding to the character string data from the character string storage unit An OSD font memory for reading out and outputting the OSD display character corresponding to the character address, and a parallel-to-serial shifter for shifting and outputting data of the OSD display character synchronously with a clock pulse from the clock generator And an OSD unit integrated with the chroma IC provided with the chroma processing means.

According to the present invention configured as described above, OSD means for generating an OSD display character for displaying an execution / setting state of a plurality of function operations on a television is integrated with a chroma IC, and the OSD means The character strings for the OSD display characters are stored separately so that the amount of data communication between the microcomputer and the OSD means is reduced and high-speed data processing is enabled.

1 is a block diagram showing a configuration in which a microcomputer and an OSD unit are integrated in a conventional television,

2 is a block diagram showing an OSD integration apparatus for a television according to the present invention;

FIG. 3 is a diagram schematically illustrating a format in which character string data is stored in the character string storage unit shown in FIG. 2 according to a preferred embodiment of the present invention.

Description of the Related Art [0002]

20: function setting section, 22: microcomputer,

24: SPI, 26: CPU,

28: string storage unit, 30: decoder,

32: video memory, 34: OSD font memory,

36: clock generator, 38: parallel-to-serial shifter,

40: Chroma processing means.

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 OSD integration apparatus for a television according to the present invention. In the apparatus of the present invention, reference numeral 20 denotes a remote control for remote control or a matrix button unit provided in the main body, And performs a key operation for execution / setting of functions (i.e., channel switching, volume adjustment, on / off timer reservation, image analog level setting, and the like).

Reference numeral 22 denotes a microcomputer for performing execution control on the overall functional operation of the television. The microcomputer 22 controls the display of OSD display characters for a predetermined function set by the function setting unit 20 The control code data for the start address and the number of characters of the corresponding OSD display character are generated.

In addition, reference numeral 100 denotes a composite video signal according to a television broadcast of a predetermined channel selected through a tuner (not shown) into a luminance signal and a color difference signal, performs luminance adjustment and color demodulation processing, The chroma IC 100 is configured such that the OSD means for displaying the screen of the execution / setting state for a plurality of functions and the chroma processing means 40 for processing the video signal for the composite video signal are integrated .

In the chroma IC 100 according to the figure, reference numeral 24 denotes a SPI (microprocessor) for receiving control code data having a code address for the OSD display character to be displayed on the screen from the microcomputer 22 and a code content for the number of characters, And numeral 26 denotes a CPU for recognizing the control code data inputted through the SPI 24 and transmitting the control code data as display control data.

Reference numeral 28 denotes a memory for storing character string data for an OSD display character (for example, channel switching, volume adjustment, etc.) frequently used in the television, and for storing the data content of the start address and the number of characters from the CPU 26 For example, a RAM for receiving the display control data having the OSD display character and generating character string data for the OSD display character.

As shown in FIG. 3, the character string storage unit 28 stores character string data for an OSD display character having an execution / setting state of a predetermined function such as M E N U S E T U P according to addresses ADD 1 to ADD 9, for example.

Reference numeral 30 denotes a decoder for decoding and outputting the display control data from the CPU 26. Reference numeral 32 denotes a character string from the character string storage unit 28 based on the display control data through the decoder 30. [ For example, a video RAM for directly receiving the data of the video signal without passing through the serial bus and generating a character address ADD corresponding thereto.

Reference numeral 34 denotes an OSD font memory that reads data of the OSD display character corresponding to the character address ADD.

Reference numeral 36 denotes a clock generating unit for generating a clock pulse in synchronization with the vertical / horizontal synchronizing signal (V SYNC / H SYNC) and having a predetermined clock period. Reference numeral 38 denotes a clock pulse from the clock generating unit 36 A serial-to-serial shifter that serially converts the OSD display character data read from the OSD font memory 34 in synchronization with the chroma processing means 40, and outputs the data to the chroma processing means 40.

Next, the operation of the present invention as described above will be described in detail with reference to FIG.

First, when a key operation for performing execution / setting of a predetermined function is performed by the function setting unit 20 in the power-on state of the television, the microcomputer 22 instructs the function setting unit 20 In order to control the generation of the OSD display character for the display of the execution / setting status for the corresponding function according to the function execution / setting status by the key operation, the contents of the code corresponding to the start address and the number of characters for the OSD display character And generates the control code data.

Accordingly, the CPU 28 of the OSD unit integrated in the chroma IC 100 recognizes the control code data input through the SPI 24 and outputs the control code data as the display control data, 28 reads and outputs the data of the character string corresponding to the display control data.

At this time, in the video memory 32, based on the input state of the display control data from the CPU 26 decoded by the decoder 30, the character address And the OSD font memory 34 reads and outputs the data of the OSD display character specified by the character address ADD.

As a result, in the parallel-to-serial shifter 38, the data of the OSD display character is shifted synchronously with the clock pulse from the clock generator 36 and is output to the chroma processing means 40, The signal of the OSD display character is inserted into the composite video signal by the means 40 so that the screen can be displayed as the execution / setting state of the predetermined function on the CRT screen.

According to the present invention as described above, the OSD means for generating OSD display characters for displaying the execution / setting states of a plurality of assigned functions on the television is integrated and formed in the chroma IC, It is possible to greatly reduce the amount of data communication with the means and to increase the data processing speed.

Claims (3)

A function setting unit (20) for performing a function operation for execution / setting of an overall function operation given to the television, A microcomputer 22 for generating control code data for an OSD display character displayed in correspondence with the execution / setting operation of a predetermined function operation by the function setting unit 20, A CPU 26 for recognizing the received control code data and outputting the corresponding control code data as display control data, a CPU 26 for receiving the control code data from the microcomputer 22, A character string storage unit 28 for storing a character string according to display control data from the CPU 26 and reading the corresponding character string data according to the display control data of the CPU 26, An OSD font memory 34 for reading out an OSD display character corresponding to the character address ADD and outputting the character address ADD, a clock generator 36 for generating a character address ADD corresponding to the character address ADD, And a parallel-to-serial shifter 38 for shifting the data of the OSD display character synchronously with clock pulses from the clock pulse from the chroma processor 40 And SD means. 2. The television receiver according to claim 1, wherein the control code data generated by the microcomputer (22) comprises a control code value for the start address of the character string storage unit (28) and the number of OSD display characters OSD integrated device. 2. The apparatus according to claim 1, wherein the character string storage unit (28) provided in the OSD means stores an OSD display character for displaying an execution / setting state of a frequently used function operation during a plurality of function operations assigned to the television To the OSD integration unit of the television set.