JP2001008236A - Television receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a system where no shake of EPG screen takes place by adjusting a screen position of the EPG screen with high accuracy and outputting a real-time video image. SOLUTION: This television receiver has two modes, an EPG adjustment mode and a shipping mode so that a display image pattern design in the EPG adjustment mode is set, in a way such that the same image pattern is outputted as in the shipping mode. Furthermore, a microcomputer system is built up to display a monoscopic pattern that is a pattern facilitating position adjustment, by allowing a tuner for displaying a video image outputted to the EPG screen in real time to search at a fixed position, so that the position of the EPG screen is easily adjusted with high accuracy. Furthermore, blurring of the EPG screen can be solved by blanking the unwanted part of a DSP signal output.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an EPG (Electronic Program Guide) screen position adjustment of a television receiver and an EPG.
It relates to a screen display system.

[0002]

2. Description of the Related Art Although there is an EPG screen itself, it does not simultaneously output images in real time. There is no blanking in the background image of the EPG screen and DSP (Digital Signal
The EPG screen may fluctuate due to dust generated by the processor) signal processing.

[0003]

SUMMARY OF THE INVENTION In order to output an image in real time at the same time as the EPG screen, an on-screen output position is determined by synthesizing an image section (EPG) created on-screen and an image processed by a DSP signal. It needs to be adjusted precisely. In addition, it is necessary to prevent the EPG screen from shaking by outputting an image in real time.

[0004]

In order to solve the above problems, the present invention sets two modes, an EPG adjustment mode and a shipping mode, and displays the same screen as the shipping mode in the display screen design of the EPG adjustment mode. To In addition, the microcomputer system can be easily configured by searching the tuner tuning channel for displaying the video output in real time on the EPG screen at a fixed position and displaying the monosco pattern which is a pattern that is easy to adjust the position. Moreover, the EPG screen position can be adjusted with high accuracy.

[0005] In addition, the EPG screen shake can be solved by blanking a portion that does not require DSP signal output.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention has a circuit configuration using a tuner, a synchronization signal processing circuit, a signal processing circuit block using a DSP, a microcomputer block, and an RGB processor.
The video signal part on the PG screen outputs the signal generated by DSP signal processing, and the EPG screen part uses the OSD (R, G, B) output from the microcomputer and is output from the microcomputer by the RGB processor. The RGB signal to be output to the CRT is switched by the YS signal to realize the EPG screen.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration diagram of a television receiver according to Embodiment 1 of the present invention. The sub-screen video signal output from reference numeral 2 in FIG. 1 is input to an input switching circuit block denoted by reference numeral 6 and then to a video signal processing block denoted by reference numeral 3. Here, the EPG data is extracted from the sub-screen video signal and sent to the microcomputer circuit block.
Transfer EPG data.

In the microcomputer circuit block indicated by reference numeral 1, EP
G data is stored in the flash memory, processed in the microcomputer block, and the EPG screen is output as on-screen. Since the video and EPG must be synthesized and output on the TV screen, the microcomputer block 1 switches between the on-screen RGB signal and the signal output from the video signal processing block 3 to output. Therefore, the YS signal is output as the switching signal, the input is switched by the RGB processor block 4 and the synthesized signal is output to the final CRT. FIG. 3 shows an actually output EPG screen.

In the EPG screen adjustment mode according to the present invention, the same screen as that shown in FIG. 3 is output, and the sub-tuner search output of the EPG screen is set to any three channels so that the still screen outputs an image whose EPG screen position can be easily adjusted. By searching for and displaying it on the EPG screen, the position of the EPG screen can be easily adjusted.

In the circuit configuration shown in FIG. 1, in order to adjust the EPG screen position to the optimum position in accordance with the input signal, the synchronization processing circuit block shown in FIG. EPG displayed on-screen by changing the phase of the vertical and horizontal pulses output to the microcomputer block shown in Fig.
The screen position can be adjusted.

As a result, the vertical and horizontal pulse phases output from the code 5 are stored in the EEPROM for each input source, and the data corresponding to the input source is transferred from the microcomputer block 1 to the synchronization processing block 5. By sending, the EPG screen can be output to an appropriate position according to the input source.

FIG. 2 is an explanatory diagram for explaining a state in which EPG screen shaking occurs due to dust generated in signal processing using the third DSP of the present invention and a screen shaking. As shown by reference numeral 10 in FIG. 2, dust may be generated in a signal obtained by synthesizing and compressing a parent screen and a sub-screen for an EPG screen. If you output the EPG screen in this state, the dust part is hidden on the screen and does not appear on the screen, but from the deflection side, the beam current fluctuates. The high pressure fluctuates and the EPG screen fluctuates.

As a result, it is only necessary to blank the dust portion as indicated by reference numeral 11. Since it is necessary to perform digital signal processing and perform final D / A conversion with the circuit configuration shown by reference numeral 3, blanking is performed on unnecessary portions in this D / A conversion circuit block, so that the final output signal becomes dusty as shown by reference numeral 11. Code 4 RGB without generating
A signal can be output to the processor, and the EPG screen shake can be resolved.

[0014]

As described above, according to the present invention, it is possible to realize a system in which the EPG screen position can be adjusted with high accuracy and the EPG screen shake does not occur by outputting a real-time image. .

[Brief description of the drawings]

FIG. 1 is a block diagram of a television receiver of the present invention.

FIG. 2 is a circuit configuration diagram of an EPG screen shaking solution according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of an EPG screen according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 microcomputer / on-screen generation circuit block 2 sub-screen tuner 3 main / sub-screen signal processing / VBI extraction circuit block 4 RGB processor block 5 synchronization processing block 6 input signal switching block 7 main screen tuner 8 EEPROM 9 vertical blanking Pulse waveform 10 Video output waveform (without blanking) 11 Video output waveform (with blanking)

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Claims (3)

[Claims] 1. A means for separating an EPG screen position adjustment mode from a factory shipment mode, a means for displaying the same screen in the EPG screen adjustment mode as in the shipment mode, and a tuner selection for outputting a picture in real time in the adjustment mode. A television receiver comprising: means for searching for and outputting a station channel at a fixed position; and means for setting a screen for searching and outputting for displaying a monosco pattern whose position can be easily adjusted. Machine. 2. A means for separating the EPG screen position adjustment mode from the factory shipment mode, and in the adjustment mode, the adjustment and the shipment mode, receiving 525 NTSC television signal systems and using two horizontal scan lines. EPG screen position and horizontal scanning lines are 1125 lines of HIV when converted to 1050 lines and output
A television receiver characterized in that when an IPG signal is received and an EPG screen is displayed, the screen position is stored in an EEPROM and the EPG screen position is displayed at an optimum position according to an input signal. 3. When displaying an EPG screen, an image signal displayed using a DSP and an image signal generated by the DSP signal processing are displayed so that a beam current flows due to dust above and below dust and a screen shake due to a high voltage fluctuation does not occur. A television receiver characterized in that blanking is applied to unnecessary signal parts other than the screen and no EPG screen shake occurs.