JPS5620364A - Communication system - Google Patents

Communication system

Info

Publication number
JPS5620364A
JPS5620364A JP9660779A JP9660779A JPS5620364A JP S5620364 A JPS5620364 A JP S5620364A JP 9660779 A JP9660779 A JP 9660779A JP 9660779 A JP9660779 A JP 9660779A JP S5620364 A JPS5620364 A JP S5620364A
Authority
JP
Japan
Prior art keywords
tape
commercial
bpfs
supplied
level
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9660779A
Other languages
Japanese (ja)
Inventor
Hidekazu Shiratori
Yasuo Sato
Takayuki Ooyama
Minoru Iwata
Ryuichiro Oota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9660779A priority Critical patent/JPS5620364A/en
Publication of JPS5620364A publication Critical patent/JPS5620364A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/37—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying segments of broadcast information, e.g. scenes or extracting programme ID
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/12—Arrangements for observation, testing or troubleshooting
    • H04H20/14—Arrangements for observation, testing or troubleshooting for monitoring programmes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
    • H04H20/31—Arrangements for simultaneous broadcast of plural pieces of information by a single channel using in-band signals, e.g. subsonic or cue signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE:To make it possible to transfer information correctly at any time even in a bad environment, by superposing digital signals upon an aural signal for the confirmation of a commercial message broadcast. CONSTITUTION:When a synchronizing tone reproduced from a tape is detected, binary-coded data are supplied to switches 19-21 and while the data are at a high level, the outputs of oscillators 15-17 are applied through BPFs 23-25 to mixer 26 and recorded on tape 12 being superposed on an aural signal read from tape 11, so that the contents of tape 12 will be broadcasted together with a video signal. A received signal, on the other hand, is supplied to microprocessor 41 by way of BPFs 31-33, rectifying circuits 34-36 and A/D converters 37-39 and then written in memory 8. On detection of a coincidence with a commercial-message diciding fixed pattern, one of three channels with the maximum value is held at a high level and the others are at a low level to perform high-level channel recording, thereby making sure of a commercial message.
JP9660779A 1979-07-28 1979-07-28 Communication system Pending JPS5620364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9660779A JPS5620364A (en) 1979-07-28 1979-07-28 Communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9660779A JPS5620364A (en) 1979-07-28 1979-07-28 Communication system

Publications (1)

Publication Number Publication Date
JPS5620364A true JPS5620364A (en) 1981-02-25

Family

ID=14169546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9660779A Pending JPS5620364A (en) 1979-07-28 1979-07-28 Communication system

Country Status (1)

Country Link
JP (1) JPS5620364A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843057U (en) * 1981-09-16 1983-03-23 富士通株式会社 Broadcast confirmation writing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843057U (en) * 1981-09-16 1983-03-23 富士通株式会社 Broadcast confirmation writing device

Similar Documents

Publication Publication Date Title
EP0154221A3 (en) Video signal reproducing circuit for a video tape recorder
MY100692A (en) Videorecorder with recording of a videotext signal.
AU556167B2 (en) F.m. stereo on video tracks
SE8207049L (en) DEVICE FOR RECORDING AND / OR REPRODUCING VIDEO AND AUDIO SIGNALS
JPS5620364A (en) Communication system
FR2375782A1 (en) METHOD AND DEVICE FOR ERROR REDUCTION IN AUDIO-FREQUENCY SIGNAL RECORDING
JPS55163613A (en) Aural signal recording/reproducing system
JPS5647907A (en) Recording and reproducing device for digital signal
GB1003496A (en) Improvements in or relating to signal reproducing systems
JPS5551395A (en) Electronic apparatus
JPS57109108A (en) Tape recorder
JPS52116A (en) Storage tube type recorder/reproducer
CA2125373A1 (en) Recording/reproducing apparatus and reproducing apparatus
JPS5591277A (en) Magnetic recorder/reproducer
JPS5522261A (en) Data recorder/reproducer
JPS5549080A (en) Recording and reproducing device for video format signal
JPS6460165A (en) Recording and reproducing device
JPH042520Y2 (en)
JPS6245745B2 (en)
JPS52102010A (en) Signal recorder/reproducer by pcm system
JPS5771507A (en) Digital data signal recording system
JPS5627579A (en) Video signal processor
KR910002286A (en) Transmission and Recording Device of Video Signal
JPS5625239A (en) Signal recording system of optical disk
JPS5339812A (en) Receiver for facsimile broadcast