JPS62258568A - Teletext receiving device - Google Patents

Abstract

PURPOSE:To read a data stored in advance in a memory and to display the data on a CRT even after the reception operation by converting a TELETEXT signal into a digital signal and storing the signal in the memory. CONSTITUTION:The received TELETEXT signal is subject to processing such as convertion into a digital signal by using a program of a character signal processing ROM 11 by a command of a microcomputer 27 and the data is stored in a memory 12. The TELETEXT reception is command by an infrared ray remote control signal from a remote controller 19 and the program is selected, its signal is fed to the microcomputer 27, a required program data is selected from the memory 12 by the command of the microcomputer 27 and fed to the CRT 3 and displayed via a CRT control section 17 and a video interface 18. Even after the reception of broadcast, the data stored in advance in the memory 12 is read by the operation and displayed on the CRT 3.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a teletext receiving apparatus equipped with a memory for storing teletext signals in television broadcast waves.

``Prior Art'' Conventionally, teletext receiving devices receive and display teletext data only while receiving operations.

``Problem to be solved by the invention'' However, in the past, when the reception operation ended, all the data was lost, so the previous data could not be reproduced.
I had to perform the reception operation again. Another problem is that once the broadcast has already ended, it cannot be played back.

The present invention has been made to solve the above-mentioned problems, and it extracts a teletext signal from television broadcast waves and converts this teletext signal into a digital signal. , and stored in a memory, from which it can be selectively read.

``Effect'' Teletext is sent on TV radio waves, so
The received teletext data is converted into a digital signal and stored in the memory. Further, even after the stored data is received, it is sent to the CRT via the CRT control section and displayed.

r Example” An embodiment of the present invention will be described below based on the drawings.

Figure 2 shows the basic circuit of the present invention.
) is coupled by RGB21 pin (2) to the CRT (3) and to the printer (4).

The above circuit will be explained in more detail with reference to FIG. 1. In FIG. 1, a single character broadcast receiving section (1) is shown.

Teletext acquisition unit (8) (including error correction circuit (9) and interface (10)), ROM for text signal processing
(11), a memory (12) for converting and storing teletext data into digital signals, and a single-screen control CR
T control unit (17) (video interface (18),
CRT (3)), remote control (19) signal light receiving section (20) (including interface (21)), additional function section (22) (copy part (23), additional sound section (24)
), consisting of interfaces (25) (26)),
It is equipped with a microcomputer (27) for total control and processing. Others include a character generation ROM (2g) and its interface (29), and an interface (31) connected to a personal computer (30).

A display section (32), its interface (33), and non-volatile RAM (34) are also coupled as necessary. Note that (5) is a bus.

In the above configuration, the received teletext signal is sent to the text signal processing RO according to the command from the microcomputer (27).
Processing such as conversion into a digital signal is performed by the program M (11), and the data is stored in the memory (12). When you command to receive teletext using an infrared remote control signal from the remote control (19) and select a program, that signal is sent to the microcomputer (27), and the microcomputer (27) commands the necessary data from the memory (12). program data is selected and sent to the CRT (3) for display via the CRT control section (17) and video interface (18).

Even after broadcast reception has finished, it can be stored in memory (12) in advance by commands from the remote control (19) or by operating the keys attached to the main unit.
The data stored on the CRT (3) is read out and displayed on the CRT (3).

"Effects of the Invention" As described above, the present invention converts the teletext signal into a digital signal and stores it in the memory, so even after the reception operation, the data pre-stored in the memory can be read out and transferred to the CRT. can be displayed.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a teletext receiver according to the present invention, and FIG. 2 is a basic block diagram of the same. (1)...Teletext receiver, (3)...CRT, (
5)... Bus, (8)... Teletext acquisition unit, (11
)...ROM for character signal processing, (12)...Memory, (17)...CRT control unit, (19)...Remote control, (20)...Light receiving unit, (22)... -Additional function section, (27)...microcomputer, (30)...personal computer, (32)...display section. (34)...Nonvolatile RAM.

Claims (1)

[Claims] (1) Teletext broadcasting characterized by extracting a teletext signal from television broadcast waves, converting this teletext signal into a digital signal, storing it in a memory, and making it possible to selectively read it from this memory. Receiving device.