JPS6126376U

JPS6126376U - Teletext recording/playback device

Info

Publication number: JPS6126376U
Application number: JP11039884U
Authority: JP
Inventors: 信一中芝
Original assignee: 三洋電機株式会社
Priority date: 1984-07-20
Filing date: 1984-07-20
Publication date: 1986-02-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は文字多重放送信号の波形図、第２図は従来の文
字放送用記録再生装置のブロック図、第３図以下の図面
はこの考案の文字放送用記録再生装置の１実施例を示し
、第３図はブロック図、第４図はテープのオーディオト
ラックに記録される信号の波形図、第５図は記録時のフ
ローチャート、第６図は再生時のフローチャートである
。Fig. 1 is a waveform diagram of a teletext broadcasting signal, Fig. 2 is a block diagram of a conventional teletext recording and reproducing device, and Fig. 3 and the following drawings show an embodiment of the teletext recording and reproducing device of this invention. 3 is a block diagram, FIG. 4 is a waveform diagram of a signal recorded on an audio track of a tape, FIG. 5 is a flowchart during recording, and FIG. 6 is a flowchart during playback.

Claims

[Scope of utility model registration request]

A recording/playback system for teletext broadcasting in which received character information of a teletext program consisting of pattern information or code information of characters and figures and a video signal of the information are recorded on a video tape, and the video signal is reproduced and sent to a display section during playback. In the device,
A program and keyword designation section for designating one or more teletext programs and a plurality of keyword information consisting of character and graphic pattern information or code information at the time of recording, and storing each of the designated keyword information and the tape. A plurality of pieces of character information each having each of the above-mentioned keyword information that was most recently recorded are stored respectively, and only those pieces of character information having the stored keyword information and different from the stored character information are stored from the received character information of each designated teletext program. a recording and reproducing circuit diagram having a plurality of information comparison sections that select and output, and a video tape recorder function, and recording received character information output from each of the information comparison sections and a video signal of the information on the tape; a reproduction specifying section for specifying a program macker signal based on keyword information included in desired character information at the time of reproduction; a video signal converting means for converting into a recording video signal in which characters and figures are superimposed on a predetermined background color, and keyword information included in the received character information outputted from each information comparison section at the beginning of the received character information. Character information forming means that adds a marker signal to form character information for recording, and detects coincidence or mismatch between the numbering marker signal specified by the playback specifying section and the program marker signal played from the tape during playback. and a reproduction control means for playing the tape at high speed until a match is detected by the comparing and detecting means, and normally playing the tape from the time the match is detected until the next time a mismatch is detected. , playback output control for sending a video signal of only the predetermined background color to the display unit during high-speed playback of the tape, and sending a playback video signal of the tape to the display unit during normal playback of the tape; A recording and reproducing device for teletext broadcasting, comprising means.