KR0183814B1 - The action method and system of television united video cassette recorder - Google Patents

Abstract

The present invention discloses a television (TV) and video cassette recorder (VCR) integrated system and a method of operation thereof. Module deck portion including recording and reproducing means of the system, video signal processing means, audio signal processing means, servo control means, main control means, sub power supply means, tuner, input / output means, deflection It consists of a television side portion having means, main control means, main power supply means and signal input means, and reduced production costs, since the TV portion and the VCR portion are separate modules from 14 inches. It can be easily applied to TV monitors up to 29 inches, and it is possible to communicate between all TVs and VCRs by establishing the interface standard between TVs and VCRs, which is advantageous when developing a development model, and independent of TVs and VCRs. The effect is to ensure an improved repair.

Description

Television and video cassette recorder integrated system and its operation method

1 is a block diagram of a conventional TVCR.

2 is a block diagram of another conventional TVCR.

3 is a block diagram of a television and video cassette recorder integrated system according to the present invention.

4 is a block diagram for explaining data communication between the television portion and the module deck portion shown in FIG.

5 is a flowchart for explaining the operation of the television and video cassette recorder integrated system according to the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television and video cassette recorder integrated system, in particular a television and video cassette recorder integrated system having a television portion and a module deck portion that are functionally divided and connected to each other, and whose internal components are divided into modules. And a method of operating the system.

TV and video cassette recorder integrated system aka T. V. city. R. (TVCR: television video cassette recorder)

Hereinafter, the configuration and operation of a conventional TVCR will be described with reference to the accompanying drawings.

FIG. 1 is a block diagram of a conventional TVCR. The VCR power supply unit 12, the VCR key scan unit 14, the mecha deck 16, and the on-screen display unit (OSD) constituting the VCR portion 10 are shown in FIG. 18, a VCR micom 20, a VCR tuner input / output section 22, a TV power supply unit 32 that constitutes a television section 40, and a TV key scan unit 34. , An on-screen display unit 36, a TV tuner input / output unit 38, and a TV microcomputer 42.

Since the conventional TVCR shown in FIG. 1 combines the TV and the VCR together without any change in the internal configuration, the TV and the VCR have redundant functions and overlapping blocks for performing the functions, namely, a key scan unit, an OSD, and a tuner. Input and output units and power supply units are the same. Therefore, since the volume of the TVCR is increased, and the same components that perform the same function are installed in duplicate, there are problems of high cost.

2 is a block diagram of another conventional TVCR, and includes a tuner input / output unit 60, a power supply unit 62, a key scan unit 64, a mechanical deck 66, a deflection unit 68, an OSD 70 and a microcomputer ( 72).

The conventional TVCR shown in FIG. 2 is a system for improving the problem of the TVCR shown in FIG. 1. The TV portion and the VCR portion coexist on the same printed circuit board (PCB). Unlike the system shown in FIG. 1, the system shown in FIG. 2 integrates the same functioning parts together, thereby reducing the unit cost and volume of the product.

However, in the conventional TVCR shown in FIG. 2, since the television portion and the VCR portion coexist on the same printed circuit board, there is a problem that the correspondence is weak and the development is difficult. Correspondence means that parts of the TVCR correspond to each other according to the television broadcasting method (PAL or SECAM method). That is, the system shown in FIG. 2 is very difficult to cope with the broadcasting method because the broadcasting method used in each country is different.

Deployable means that the equipment used in the television is expanded or shrunk. If the system shown in FIG. 2 is a system for 12-inch televisions, a system board of the system shown in FIG. 2 must be newly produced for a system used for a 14-inch television. In other words, as the size of the television varies, load response due to power supply such as switching mode power supply (SMPS) is difficult, and only one printed circuit board corresponds to one inch, which makes it difficult to develop each inch. In addition, even if the inch of the television is fixed, there is a difficult problem of re-developing the TVCR even when the model of the VCR is developed, such as the number of heads of the VCR increases from two to six.

In order to solve the above problems, the present invention is excellent in development and responsiveness, and does not overlap internal components so that even the VCR model development can be applied in various ways. It is to provide a video cassette integrated system.

Another object of the present invention is to provide a method for operating a television and video cassette recorder integrated system according to the present invention.

In order to achieve the above object, a television and video cassette recorder integrated system according to the present invention comprising a module deck portion that functions as a video cassette recorder (VCR) and a television portion that functions as a television (TV) and controls the module deck portion is Recording and reproducing means for recording and reproducing video and audio signals on a tape as the deck for the VCR, and for processing color signals and luminance signals from the television portion and outputting them to the recording and reproducing means. Video signal processing means for processing color signals and luminance signals and outputting the video signals from the recording and reproducing means; and processing and outputting audio signals from the television portion to the recording and reproducing means. To process the audio signal from the playback means Audio signal processing means, servo control means for controlling the recording and reproducing means, and the recording and reproducing means, the video signal processing means, the audio signal processing means and the servo control means in response to a main control signal. And a sub-control means for detecting a state of the recording and reproducing means and outputting a deck state signal, wherein the television portion demodulates a high frequency signal received from an antenna and outputs audio and video signals; In response to a control signal, outputting a video / audio signal from the tuner to the video signal processing means / audio signal processing means or inputting a video and audio signal from the video signal processing means / audio signal processing means, respectively. An input / output means and a video signal of the input / output means are displayed Deflection means for controlling scanning in accordance with vertical synchronization and horizontal synchronization so as to control each means of the television portion in response to a selection signal and the deck state signal, and main control means for outputting the main control signal; Preferably, the control unit comprises power supply means for supplying power to the respective means and signal input means for inputting the selection signal from the outside.

A television and video cassette recorder integrated system according to the present invention comprising a module deck portion that functions as a video cassette recorder (VCR) and a television (TV) function to control the module deck portion for achieving the another object. The operation method may include determining a state of the module deck portion when a user selection signal from an external source is input, generating a module deck control signal according to the state of the module deck portion, and the module deck portion may be the module deck. It is preferable that the step of performing the function of the VCR according to the control signal.

Hereinafter, a television and video cassette recorder integrated system according to the present invention will be described with reference to the accompanying drawings.

3 is a block diagram of a television and video cassette recorder integrated system according to the present invention, wherein the recording and reproducing section 82, the servo control section 84, the amplifying section 86, and the video signal constituting the module deck portion 80 are shown. Processing unit 88, audio signal processing unit 90, sub power supply unit 92, sub control unit 94, tuner 102 constituting television portion 100, input / output unit 104, main power supply 106 , A main control unit 108, a deflection unit 110, an OSD processing unit 112, a key scan unit 116 constituting the signal input unit 114, and a remote control receiver 118.

Here, module deck is a term used to collectively refer to a mechanism and a system having a function of a VCR portion in a TVCR. That is, the circuit and software portions of the TVCR except for the television portion 100.

The recording and reproducing section 82 shown in FIG. 3 is a deck for a VCR, which is a deck assembler for performing a VCR-specific function of recording or reproducing video and audio signals on a tape. The amplifier 86 amplifies the video signal reproduced from the video tape and outputs the video signal to the video signal processor 88 or amplifies the video signal input from the video signal processor 88 to the recording and playback unit 82. Do it. The video signal processing unit 88 functions to process color signals and luminance signals when recording and reproducing video signals input from the input / output unit 104 or video signals input from the amplifying unit 86. The audio signal processing unit 90 processes the audio signal output from the recording and reproducing unit 82 and outputs it to the input / output unit 104 or processes the audio signal input from the input / output unit 104 to record and reproduce the 82. Will output

The servo control unit 84 functions to control the recording and reproducing unit 82. The sub power supply 92 receives the main power from the main power supply 106 of the television section 100 and converts the main power into the power used in the module deck portion 80, and converts the converted power into the respective means 82 and 84. , 86, 88, 90 and 92).

The tuner 102 demodulates a high frequency (RF) broadcast signal from a signal received at the antenna through the input terminal IN1, and divides it into an audio and video signal. The input / output unit 104 receives audio and video signals from the tuner 102 and outputs them to the video signal processing unit 88 and the audio signal processing unit 90, respectively, and the video signal processing unit 88 and the audio signal processing unit 90. ) To control the input of the video and audio signals, respectively. That is, the television portion 100 functions to control input and output of video and audio signals. The on-screen display processing unit 112 is a part that performs separate image processing to display text such as a character on the screen. The deflection unit 110 controls the scanning of the screen in accordance with the vertical synchronization and the horizontal synchronization to form a television screen. The main power supply unit 92 converts predetermined power from the outside into the power required by the television portion 100 and the module deck portion 80 to supply the converted power to each portion of the television portion 100, and the secondary power supply portion It performs the function of supplying main power to 92.

The key scan unit 116 of the signal input unit 114 scans a selected key through the input terminal IN2 to recognize a function key, and provides a signal corresponding to the recognized function to the main controller 108, and the remote controller The receiving unit 118 functions to input a signal transmitted from a remote controller to the main control unit 108.

The secondary control unit 94 controls the respective means of the module deck portion 80, and transmits the operating state of the module deck portion 80 to the main control unit 108, and is controlled by the main control unit 108 to reproduce And recording and the like. The main control unit 108 controls the respective means of the television section 100, grasps the state of the module deck section 80, and instructs the module deck section 80 commands such as recording, playback and multifunction. do.

FIG. 4 is a block diagram for explaining data communication between the television portion 100 and the module deck portion 80 shown in FIG. 3, and includes a sub controller 94 and a main controller 108. As shown in FIG.

The television portion 100 and the module deck portion 80 send and receive data in serial communication. Data indicating the status of the module deck portion 80 is transmitted from the secondary control unit 94 to the main control unit 108 via D _O shown in FIG. 4, and the sub control unit from the main control unit 108 via D _I. At 94, data instructing the performance of the various functions of the module deck portion 80 is transmitted. The STROBE clock, which is a reference for data input / output, is transmitted from the main control unit 108 to the sub control unit 94 through RESET, and is output from the sub control unit 94 to the main control unit 108 via the CLK. D is _O and D _I is selected according to whether the status is the high level or low level is applied. For example, in a high level state, the sub controller 94 is in a mode of receiving data.

Hereinafter, with reference to the accompanying drawings, the operation method of the television and video cassette recorder integrated system according to the present invention will be described as follows.

FIG. 5 is a flowchart for explaining the operation of the television and video cassette recorder integrated system according to the present invention. The step of determining the state of the module deck portion 80 (step 124) and the module deck portion 80 are shown in FIG. Control step (step 126 to step 130).

The main control unit 108 outputs a state detecting signal to the sub control unit 94 in order to determine the state of the module deck portion 80, and the sub control unit 94 transmits to the module deck portion 80 when a state detecting signal is input. The state of each unit is checked to output state data indicating the state of the module deck portion 80 to the main controller 108. The main controller 108 determines the state of the module deck portion 80 by inputting the state data (step 124). The operation of the television portion 100 may be performed after step 124 (step 126), or may be performed in step 124.

After step 124 or 126, the main controller 108 generates a module deck control signal and outputs the module deck control signal to the sub controller 94. The sub-controller 94 controls each unit of the module deck portion 80 in response to the module deck control signal, thereby performing a unique function of the VCR (step 130).

In the method of operation of the system according to the invention, the module deck portion 80 and the television portion 100 each share their functions and perform them. First, the module deck portion 80 receives data from various sensors of the module deck portion 80 to grasp the state of the recording and reproducing unit 82, and controls the mechanical movement of the recording and reproducing unit 82. The mechanical control function, the servo control function for controlling the drum motor and the capstan motor under the control of the main control unit 94, the loading control function for controlling the input / output of the tape, and the remaining amount of the tape are calculated. A remaining amount calculation function, an automatic tracking function that automatically performs a tracking process to read the maximum signal amount when the head reads the track of the tape, a VCR circuit control function that controls the power supply and each part of the module deck portion, It performs unique functions like fast rewind control functions that control fast rewind. In addition, the VISS (videp index search system) control that stops the tape at the part that the user wants to search and the JOG / SHUTTLE control function that controls the user's view by dividing the screen by 1 frame selectively Perform.

The television section 100 includes a G code reservation recording function, an on-screen display function, a timer reservation recording function, a key scan function, a remote control reception processing function, a function of controlling a circuit relating to deflection, audio and video The functions of controlling the input and output of signals and the functions of controlling the parts of the television portion are performed.

The present invention has been limited to the TVCR, and the present invention can be widely applied to other fields such as a video CD and an integrated television system. In addition, two tuners may be used in the television portion to separate the recording channel and the television viewing channel, and the secondary power supply may be located in the television portion 100.

As described above, the television and video cassette recorder integrated system and its operation method according to the present invention reduce the production cost by eliminating the overlapping functions of the conventional VCR portion (or module deck portion) and the television portion. Since the VCR part is an independent module, it can be easily applied to 14-inch to 29-inch television monitors, and communication between all televisions and VCRs is possible only when the TV-VCR interface standard is established, which is advantageous when developing a development model. Since the television and the VCR are independent, it is possible to guarantee improved repairs during after-sales service.

Claims (6)

In a television and video cassette recorder integrated system comprising a module deck portion that functions as a video cassette recorder (VCR) and a television portion that functions as a television (TV) and controls the module deck portion, the module deck portion is for the VCR. Recording and reproducing means for recording and reproducing video and audio signals on a tape as a deck; Video signal processing means for processing color signals and luminance signals from the television portion and outputting them to the recording and reproducing means, and processing and outputting the video signals from the recording and reproducing means for color signals and luminance signals; Audio signal processing means for processing the audio signal from the television portion and outputting it to the recording and reproducing means, and for processing and outputting the audio signal from the recording and reproducing means; Servo control means for controlling the recording and reproducing means; A sub-control for controlling the recording and reproducing means, the video signal processing means, the audio signal processing means and the servo control means in response to a main control signal, and detecting the state of the recording and reproducing means to output a deck status signal. Means for demodulating a high frequency signal received from an antenna and outputting audio and video signals; In response to an input / output control signal, output a video / audio signal from the tuner to the video signal processing means / audio signal processing means, or input a video and audio signal from the video signal processing means / audio signal processing means, respectively. Input and output means; Deflection means for controlling scanning in accordance with vertical synchronization and horizontal synchronization so that the video signal of the input / output means is displayed; Main control means for controlling each means of the television portion in response to a selection signal and the deck status signal, and outputting the main control signal; Power supply means controlled by the main control means to supply power to the respective means; And signal input means for inputting the selection signal from the outside. The method of claim 1, wherein the module deck portion is further provided with a secondary power supply means for receiving the power supplied from the power supply means in response to the secondary control means for converting and supplying the power required for each means of the module deck portion. A television and video cassette recorder integrated system. The television and video cassette recorder integrated system according to claim 1, wherein the main control means and the sub control means exchange data such as the deck status signal or the main control signal by serial communication. 2. A television and video cassette recorder integrated system according to claim 1, wherein each means is modularized to perform independent functions. A method of operating a television and video cassette recorder integrated system comprising a module deck portion that functions as a video cassette recorder (VCR) and a television portion that functions as a television (TV) and controls the module deck portion, wherein the user selects from the outside. Determining a state of the module deck portion when a signal is input; Making a module deck control signal according to a state of the module deck portion; And said module deck portion performing a function of said VCR in accordance with said module deck control signal. 6. The method according to claim 5, wherein the television portion performs the television function when the user selection signal is input, wherein the television portion performs the television function. Way.