JPH0568242A - Teletext receiver - Google Patents

Abstract

PURPOSE:To efficiently select and output a necessary teletext program. CONSTITUTION:Program buffer memories 214, 215 to record the program data of a program number in a range designated beforehand among the program data decoded from a teletext signal, a retrieval word memory 213 to record retrieval data related to desired program contents among the data recorded in these memories 214, 215, and a CPU 210 to take out the program data coincident with the retrieval data in the memory 213 out of the memories 214, 215 and output is through an interface 216 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a teletext broadcasting receiver.

[0002]

SUMMARY OF THE INVENTION According to the present invention, in a service that provides a large amount of character information such as television multiplex character broadcasting, program data desired by a receiver is stored in a memory of a receiver from a large amount of broadcast contents. A character information broadcasting receiving device for recording and allowing the receiver to watch the program whenever necessary, which is related to the program content desired by the receiver after selecting a program number in a predetermined range. This is to enable the required programs to be accurately and efficiently selected and output based on the search data.

[0003]

2. Description of the Related Art Conventionally, a teletext receiver has initially received, decoded, and displayed the program data selected by the receiver after waiting for the program data to be transmitted. The maximum waiting time in this case is the transmission period of the teletext program (for example, 20 seconds),
Moreover, in the case of a program having a plurality of pages, it was often received from a page in the middle. In addition, many teletext receivers with program data memory have been manufactured due to the reduction of the memory unit price, but waiting time can be reduced by recording a reserved program number and some pages of all program data. It was a reduction.

[0004]

In the conventional teletext receiver, in order to reduce the waiting time from the program selection to the program presentation by the receiver, the program data sent at all times is stored in the receiver. Therefore, it may be presented according to the selection of the recipient. However, a large amount of memory is required to record all the programs, and it takes time and effort for the receiver to find out the necessary information from all the presented data.

An object of the present invention is to provide a text information broadcast receiving apparatus that solves the above problems.

[0006]

In order to achieve the above-mentioned object, the present invention is directed to, among program data decoded from a character information signal,
A program data memory for recording program data of a program number in a predetermined range; and an output means for outputting program data matching the search data related to desired program content among the data recorded in the program data memory. It is characterized by having.

[0007]

According to the present invention, a desired program is selected in advance from the programs decoded from the character information signal by the search data related to the program number and the program content.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example applied to a teletext receiver as an embodiment of the present invention will be described using the configuration of FIG.

A television VBL multiplexed teletext signal is input to the terminal 1. A range of program numbers to be received and searched, a search word that is a word indicating the contents to be searched, a classification code indicating the type, and designation information indicating reception reservation or recording reservation are input to the terminal 2 in advance. The data input to the terminal 2 is received by the reception control circuit 12 and sent to the selection control circuit 20. The packet decoding circuit 10 decodes a data packet from the teletext signal input to the terminal 1 and inputs it to the selection circuit 11. In the selection circuit 11, necessary data packets are selected by the program number range designation information from the selection control circuit 20 and sent to the program buffer 21.
In the program buffer 21, one page of program data is stored, and it is searched whether or not the search word or the classification code from the selection control circuit 20 matches the stored program data.

The adapted program data is output from the program buffer 21, and switched by the switching circuit 22 based on the designation information from the selection control circuit 20 indicating whether the recording reservation or the reception reservation is made. In the case of the reception reservation, the character decoding circuit 30 is used. The text program is decoded by and displayed on the display means (TV etc.) 31. On the other hand, in the case of recording reservation, the program data from the program buffer 21 is recorded in the memory 23. The plurality of program data stored in the memory 23 is a program required by the receiver. However, the receiver 2 inputs the information instructing the reproduction from the terminal 2 at any time when the receiver likes, and the reception control circuit 12 and the selection control circuit 20 are set. The corresponding program data is read out from the memory 23 via the memory 23 and displayed on the display means 31 via the switching circuit 22 and the character decoding 30.

Next, details of the program buffer 21 will be described with reference to FIG. Here, an example based on CPU processing will be described. The CPU 210 controls program data search and data input / output. The program data input from the selection circuit 11 via the input interface 211 is stored in the buffer memory 2
14 or buffer memory 215 for temporary recording. In this case, the content is recorded in the buffer memory that is not searched. When recording of one program data is completed, the following search is performed.

Words and classifications indicating designations of program contents of the receiver for search are stored in advance in the search word memory 213 via the input interface 212. It is possible to improve the accuracy of the search by using a word related to the search word other than the word specified by the recipient. For this purpose, we use a so-called thesaurus that includes synonyms and related words. If the program data has a classification code indicating the classification of the content other than the information content, the CPU 21
For 0, the conversion code (memory) 217 is used to obtain the classification code related to the word designated by the recipient. Further, when the designation of the recipient is the classification of the information content, the conversion table 217 can be used to obtain the search word associated with the classification code to improve the accuracy of the search.

Using the search word and the classification code stored in the search word memory 213 as described above, the program data recorded in the program data buffer memory is searched. In this search, the program data in which the search word or the classification code matches is output via the output interface 216 and sent to the switching circuit 22.

In the above embodiment, the unit of program data can be one page of teletext or one program. However, when it is set to one program, it takes time to search all programs, and more buffer memories are prepared. Then, multiple programs will be received and searched in parallel.

As described above, a. Since the programs to be recorded are limited in advance by referring to the program number, the contents of the program characters, etc., the required memory amount is smaller than that for recording all the programs.

B. Since the recorded programs are selected according to the program contents, the programs preferred by the receiver can be efficiently presented at the time of viewing, and the necessary information can be viewed in a short time.

C. Since the program numbers are roughly selected when selecting the program characters of the recorded programs, the processing time can be shortened as compared with selecting from all the program data.

[0018]

According to the present invention, necessary character information broadcast programs can be efficiently selected and output.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of a teletext receiver according to the present invention.

FIG. 2 is a configuration diagram of a program buffer in the embodiment.

[Explanation of symbols]

 11 selection circuit 20 selection control circuit 21 program buffer 23 memory

Claims (2)

[Claims] 1. A program data memory for recording program data of a program number in a predesignated range among program data decoded from a character information signal, and a desired program content of the data recorded in the program data memory. A character information broadcast receiving device, comprising: an output unit that outputs program data that matches the search data related to. 2. The character information broadcast receiving apparatus according to claim 1, wherein the output means has a memory capable of recording and outputting program data.