JPS605690A - Character multiplex broadcast receiver - Google Patents

Abstract

PURPOSE:To attain print and display of character information by providing a character and pattern generator additionally writing a character and a pattern to a picture memory when an output signal of a key word comparison section and that of a key work register are made coincide. CONSTITUTION:When a mode detecting section 4 transmits a key word request signal, the signal is inputted to a key work comparison section 9, where a content inputted from a keyboard 16 and stored temporarily in a key buffer 15 and a content of a key word register 8 are compared. When they are coincident, the comparison section 9 transmits a printer start signal and a character generating section start signal. The character/pattern generating section 10 applied a fixed pattern and additional character to a picture memory so as to be stored additionally when an output signal of the register 8 and the start signal from the comparison section 9 are inputted. The content stored in the memory 6 is printed as character and pattern by a printer 14 via a printer control section 13 and displayed on a display 12 such as liquid crystal via a display control section 11 optionally.

Description

[Detailed description of the invention] The present invention relates to a teletext receiver.

This type of receiver inputs the output signal from the television receiver after detecting the video signal to a decoder for teletext broadcasting, performs signal processing, and then supplies it again to the video signal mixing switch of the receiver to send it to the cathode ray tube. In order to receive teletext broadcasts, an existing television receiver must be equipped with a teletext reception device (or a television receiver with a built-in teletext decoder). You need to be able to buy it.

In view of the above-mentioned circumstances, the present invention separates the multiplexed text signal after detecting the video signal, and then prints and prints the multiplexed text information and the text/figure information generated and added to f1 in the receiver, or on a storage medium such as a magnetic card. It is an object of the present invention to provide a teletext broadcasting receiver that is capable of recording the information and displaying the information on a specific display section at any time.

An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a television broadcast signal receiving and detecting section which selects a desired channel from a television broadcast signal inputted from a television broadcast signal input terminal 2 and detects a video signal. Reference numeral 3 denotes a text multiplex signal separation unit into which the output signal of the television broadcast signal reception and detection unit 1 is introduced, and the text multiplex signal separated by this separation unit 3 is input to the mode detection unit 4. This mode detection section 4
detects and determines from the character multiplex signal whether the mode is image transmission mode, key node transmission mode, or keyword request mode, and sends a control signal corresponding to each mode based on the determination result.

When the mode detection section 4 sends out an image transmission mode control signal, the gate circuit 5 is opened and the image signal from the section 811 section 3 is stored in the image memory 6.

When the mode detection section 4 sends out a keyword transmission mode control signal, the gate circuit 7 is opened and the keyword signal is input to the keyword register 8.

At this time, the gate circuit 5 closes before the gate circuit 7 opens.

Further, when the mode detection section 4 sends out a keyword request signal, the signal is inputted from the keyboard 16 in the keyword comparison section 9, and the contents temporarily held in the keypad sofa 15 are compared with the contents of the keyword register 8, and when they match, the contents of the keyword register 8 are compared. The comparison section 9 sends out a printer activation signal and a character generation section activation signal, which will be described later. Note that the timer 17 is activated when the keyword request signal is sent. This timer 17 is used to shift the operation to processing when the recipient does not input the key word F within a predetermined time.

Reference numeral 10 denotes a character/figure generating section, and this generating section 10 generates a fixed figure or an additional character in the image memory 6 when the output signal of the keyword register 8 and the start signal from the comparing section 9 are input. Supply and store additional information. The contents stored in the image memory 6 are printed by a printer 14 via a printer control section 13, and are also displayed at any time via a display control section 11 on a display 12 made of, for example, a liquid crystal.
will be displayed.

After the printing of the contents of the image memory 6 is completed, a printout completion signal is supplied to the mode detection section 4, the series of operations is completed, and the mode returns to the state of waiting for reception of new information.

Although the above embodiment has been described using the printer 14, it is also possible to use a magnetic card storage device instead of the printer 14.

■- While receiving a specific TV broadcast such as Fuji TV (channel 8) using a receiver such as the one described above, the receiver can receive information on discounts and discount coupons related to the content of the program being received as needed. A usage ticket can be obtained using the printer 14 of the receiver.

If a magnetic card storage device is installed in place of the printer 14, the stored contents can be displayed on the display section at any time.

A flowchart of each of the above operations is shown in FIG.

In other words, embodiments of the present invention are applicable to broadcast satellite and television retransmission CA.
It goes without saying that it can be applied to TVs, etc., and as described above, according to the present invention, when the keyword signal after character multiplex signal bone matches the input signal from the keyboard etc., it is possible to print and print on the printer. This allows text information to be displayed on the display at any time, and it is small, lightweight, and can be produced and provided at low cost.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a flowchart for explaining the present invention in detail. 1 is a television broadcast signal reception detection section, 2 is a television broadcast signal input terminal, 3 is a text multiplex signal separation section, 4 is a mode detection section, 5.7 is a gate circuit, 6 is an image memory, 8
is a key tool 1 register, 9 is a keyword comparison section, 10 is a character/figure generation section, 11 is a display control section, 12 is a display section,
13 is a printer control unit, 14 is a printer, 15 is a key buffer, 16 is a keyboard, and 17 is a timer. Patent applicant Fuji Television Co., Ltd. Agent Patent attorney Product 1) Tadashi Teru

Claims (1)

[Scope of Claim] A television broadcast receiver that receives a television broadcast signal having a video signal in which +11 character information is multiplexed in a single or multiple horizontal scanning periods within a vertical blanking period. a multiplex signal separation unit that separates the television video signal and the multiplexed text information after detecting the signal;
A mode detection section is supplied with the output signal of this separation section, and determines the image transmission mode, keyword transmission mode, and keyword request mode from the output signal, and sends out a control signal according to each mode; an image memory that stores an image signal when a control signal is sent out, a keyword register that stores a keyword signal when a keyword transmission control signal is sent out from the detection section, an output signal of this register, and the detection section. The keyword comparison section receives the keyword request signal sent from the keyboard and the signal from the keyboard, and sends out an output signal when the conditions of each signal match, and the contents of the output signals of this comparison section and the keyword register are input. a character/figure generator for sending and writing characters and figures to the image memory when a match occurs;
1. A teletext broadcasting receiver comprising: a printer for printing the contents recorded in the image memory; and a display capable of displaying the contents of the image memory at any time. (2. A teletext broadcasting receiver according to claim 1, characterized in that the teletext broadcasting receiver is equipped with a magnetic card memory 1, a device in place of the printer.