JPS60196084A - Character broadcast receiver - Google Patents

Abstract

PURPOSE:To facilitate easy handling of a character broadcast receiver and to attain the effective use of time by displaying instantaneously the page next to a specific page or the pages following said next page even though the update is stopped for the display of the specific page on a CRT screen or the update of said display is stopped for copy of the specific page through a copying machine. CONSTITUTION:A TV reception part A is provided together with a character broadcast decoder part B. A CPU8 uses the control signal given from an operation part 12 for operation part via the 3rd signal line LS3 to discriminate whether the operation keys of an operation part 17 is pushed or not. Then the CPU8 discriminates that a update stop key 17a is operated in order to stop the update of the screen of a specific page and then stops the update of the display screen of the specific page on a CRT screen. Then the data on the page next to the specific page is stored to a next page memory 18 and then transferred to a buffer memory 7. Thus the page next to said specific page is displayed on a CRT screen.

Description

Detailed Description of the Invention (Technical Field) The present invention utilizes the vertical blanking period of a television video signal to generate character signals transmitted by data packets whose unit length is the horizontal scanning period. The present invention relates to a teletext receiver for receiving teletext broadcasts, and in particular to storing teletext program pages.

(Prior art) A conventional teletext receiver is equipped with a program reservation memory (multi-memory), in which the teletext program and its program number that the user wishes to view are stored in advance, and the teletext program and its program number are stored in the program reservation memory when necessary. There is a system that allows teletext to be displayed instantly on a CRT screen. By the way, when only the program number is reserved in this program reservation memory, in order to fully absorb the contents of the first page of the program displayed on the CRT screen, for example, the CRT screen can be moved to the next vane display. In order to copy the first vane using a copying machine, the update may be stopped as well. In the case of , 2, the teletext station will send you a program for the next/2nd time, so if that vane is not reserved, you will be unable to understand or copy 1. If you want to display the next page on the CRT screen, press the next page or the ape person's page again. , l) ) J, you need to wait until it is sent from Class Z of Furunobe Ichino or the teletext station. Such waiting time feels very long to the user, and is also a waste of time.

(Purpose) The present invention has been made in view of the above-mentioned 1).
Or, even if you stop updating the copying machine to make a copy of the particular vane, the page after the particular vane or the page after the ape man's vane will be displayed immediately on the CRT screen. The purpose is to make it easier to operate and to make effective use of time by making it possible to display it.

(Example) Hereinafter, the present invention will be explained in detail based on the example shown in the drawings. FIG. 1 is an overall circuit block diagram of this embodiment. The number of teletext broadcasts received in this embodiment includes a television receiving section j\ and a teletext decoder section B.

The television receiving section A includes a receiving section 2 which performs processing such as RF amplification, IF amplification, and detection on the television signal received by the television antenna 1, and a receiving section 2 which performs processing such as RF amplification, IF amplification, and detection on the television signal received by the television antenna 1, as in a normal television receiving system. It is equipped with a normal processing circuit 3 for processing a composite video signal, and also includes a TV/character T, IJ switching circuit 4, and a CRT ( (cathode ray tube) 5.

On the other hand, the teletext decoder section B includes a circuit 6 that extracts a character signal from the composite video signal from the receiving section 2 and performs predetermined data processing, and a panzer that temporarily stores the character signal from the processing circuit 6. Memory 7 and C that controls the overall operation
A PU (Central Processing Unit) 8, a program ROM 9 storing programs for the operation of the CP Li 8, and a C
Working RAM I O used for P U8 or operation
Equipped with. Furthermore, this teletext decoder section B includes a program reservation memory (multi-memory) 11 that stores teletext programs and their program numbers in advance, an operation section 17 that performs reception operations for teletext broadcasts, and the operation section 17. an operation section control section) 2 which provides a control signal for controlling the internal circuit of the teletext receiver in response to an operation of the teletext receiver; and a first signal line 1. from the operation section control section 12. ．． ．． A main power source 1 that is controlled to cut off the supply of electric power in response to a first control signal via S1.
3, and a second control signal is given from the operating unit control section]2 via the second signal line LS2, and in response to the second control signal, the working RAM 1 is input via the first power supply line LB1.
It has a blow-up type original 16 that controls the power supply to 0. The operation unit control unit 12 sends a third control signal to the processing circuit 3 of the television receiving unit A via the third signal line LS3.
and CPtJ8. In addition, the main power station)
3 includes a television signal processing circuit 3 connected to the television receiving section via the second power supply line LB2, the TV/character switching circuit 4, a processing circuit 6 of the teletext decoder section B, and a buffer memory 7; main power is supplied to the program reservation memory 11, and further to the receiving unit 2 of the television receiving unit and the CI of the teletext decoder unit B via the third power line LB3.
Main power is supplied to IJ 8 and program ROM 9. 14 is a data bus, and 15 is an address bus.

The operation 11s17 is repeated in order to understand the contents of the page displayed on the screen of the CRT 5, to copy the contents of the page with a copying machine, or to stop updating the program for other reasons. The update stop operation key frame a is used as the first operation key to be created, and it is operated to call up the next page of the vane in the program when the update or stop is stopped on the screen of the CRT 5 after the update stop is canceled. It also includes a calling operation key 17b as a second operation key. In this case, the update stop operation key 17a is used for the purpose of stopping the update, although there is only one key in the embodiment, for example, to take time to fully understand the page displayed on the CRT screen, or to use the copy machine. A plurality of them may be individually provided depending on each purpose such as for copying. Further, the call repeat key 17b may also be operated for the purpose of the call operation, or may be operated for the purpose of canceling the update suspension itself. Of course, although there is only one call operation key 1.7b in the embodiment, a plurality of call operation keys 1.7b may be provided depending on the purpose. Further, the calling operation key 17b may be used not only for repeatedly calling the next page after a specific page, but also for calling a page several pages ahead from the specific page.

In this case, a plurality of call operation keys 171] are provided, and the bene number of each call operation section is written in each call operation key 17b, so that the user can enter the vane number he or she wishes to call. It is convenient if the page desired to be displayed is immediately called up by operating the calling operation key 17b.

A next page memory 18 stores the next page when the update is stopped by operating the update stop operation key 1.7a. This next page memory 18 may use the outdoor area of the program reservation memory 11 for its memory.
The memory may be separate from the program reservation memory 1. Furthermore, a plurality of next page memories 18 may be provided depending on the number of pages to be stored, and each next page memory 18 may individually store data of a corresponding page.

FIG. 2 shows each storage area a of the program reservation memory 11.

b, c, d, etc., and this program reservation memory 1
2 is a diagram showing a configuration in which the free storage area of 1 is used as the storage area of the next page memory 18. As shown in FIG. is specified and the corresponding number is stored, and the storage area of the program reservation memory 11 indicates that a program is specified and its program number is stored, but the vane is not specified and the corresponding number is stored. This indicates that the vane number is not stored. Then, next page memory 1
8 storage area x 1 indicates that if a vane is not specified, the number of the next vane is stored.

In the case of FIG. 2, the storage area of the program reservation memory 11)]
The number of the @ group reserved in ``14'' is ``14'', and the page of that program is not specified, and the update stop operation key 17a is operated with the ``Beno'' number of that program, and therefore the next ``Bane memory'' is 18 indicates that "2", which is the number of the next page of the first vane, is stored.

Next, the operation will be explained with reference to chart 70 in FIG. In this operation, it is assumed that the program number has been designated and stored in the program reservation memory 1 by operating the repeat keys of the operation section 17, but the page thereof has not been designated. Therefore, the CRT screen sequentially displays the first page of the program, and the page display on the CRT screen is updated one after another each time the next page is sent. In this embodiment, in such a case, for example, a specific page is displayed on the CRT screen over time, and during this display, the data of the next page is stored in the next page memory X8, and the recall operation key 17b is pressed. When operated, the page will be immediately displayed on the CRT screen without waiting time.

In step STI, the CPU 8 determines whether or not the operation key of the operation section 17 is operated based on the control signal from the operation section control section 12 via the third signal line 1-83. In this judgment, if the operation key is being operated, YES
In step ST2, it is further determined whether or not the update stop operation key 17a among the operation keys has been operated in order to stop updating the screen of a specific page. If this determination is YES, updating of the display screen of the specific vane on the CRT screen is stopped in step ST5. Then, in the next step ST6, the data of the next page of the specific page is stored in the next page memory 18. In this way, the next data is stored in the next vane memory 18. Next, the purpose of displaying a specific page is completed and the call operation key 171 is operated, but in this case, since the update stop operation key 1.7a is not operated, it is determined No in step ST2. , proceed to the next step ST3. In this step ST3, the opening φ
It is determined whether or not the extension operation key 171] has been operated. If it has not been pressed, the judgment is No and the process proceeds to another key processing routine in step ST4, but in this case, since the call operation key 171 has been pressed,
At this step ST3, YES and t11 are disconnected, and at step S
Proceed to T7. In this step ST7, the data of the next page of the specific vane stored in the next page memory 18 in the step ST6 is transferred to the buffer memory 7. This causes the CRT screen to display the next vane after the specified vane. In this way, after the display of a particular page is finished, the next page is displayed without any waiting time. Note that after the processing in step ST7, the data of the page next to the specific page is no longer needed, so the process proceeds to step ST6, and the data of the next page is stored in the next vane memory 18 in the same manner as described above. Store it and prepare for the next display.

(Effects) As described above, according to the present invention, there is provided an operation section that performs teletext reception operations, and an operation section control section that controls the internal circuit of the teletext receiver in response to the operation of the operation section. In the teletext receiver having a teletext receiver, the operation unit includes a first operation key that is operated to stop updating the program, and a key that is used to select the next page of a specific page in the program when the update is stopped. From the next page or the arson page when the update is stopped by the operation of the first operation key. A next page memory is provided for storing subsequent page numbers, and the operation unit control unit stores the next page memory through the internal circuit by operating the first operation key. The pages subsequent to the arson page are stored, and the next vane of page 11j or the vanes subsequent to the arson page are recalled from the next vane memory via the internal circuit by operating the second operation key. Even if you stop updating the display of a page on the CRT screen, or stop the updating of the page in order to make a copy of that particular page with a copying machine, for example, the next page after that particular page will be displayed on the CRT screen. It has become possible to immediately display the information on the screen, making it easier to operate and making effective use of time.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an overall circuit block diagram of the embodiment, FIG. 2 is a diagram showing the configuration of a storage area of a program reservation memory, and FIG. 3 is a flowchart for explaining its operation. It is. 12 is an operation unit control unit, 17 is an operation unit, and 18 is a next page memory. Applicant Sharp Co., Ltd. Agent Patent Attorney Kazuhide Okada

Claims (1)

[Claims] (1) In a teletext receiver having an operation section for performing a teletext reception operation and an operation section control section for controlling an internal circuit of the teletext receiver in response to the operation of the operation section, the operation section is , a first operation key that is operated to stop the update of the program, and a first operation key that is operated to call the page after the specific page in the program when the update is stopped or the page after the released page. a second copying key; a next page memory for storing pages after the next page or the released page when updating is stopped by the operation of the first operating key; The control section is
By operating the first operation key, the next page or subsequent pages (such as the previous page) are stored in the next page memory via the internal circuit, and by operating the second operation key, the internal circuit is also stored. A teletext receiver having a VF feature of calling up the next page or pages subsequent to the released page from the next page memory via the VF feature.