JPS57188150A - Multiplex signal transmission system - Google Patents

Multiplex signal transmission system

Info

Publication number
JPS57188150A
JPS57188150A JP56073723A JP7372381A JPS57188150A JP S57188150 A JPS57188150 A JP S57188150A JP 56073723 A JP56073723 A JP 56073723A JP 7372381 A JP7372381 A JP 7372381A JP S57188150 A JPS57188150 A JP S57188150A
Authority
JP
Japan
Prior art keywords
control signal
audio channel
sub
signal
detection gate
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.)
Granted
Application number
JP56073723A
Other languages
Japanese (ja)
Other versions
JPS6315777B2 (en
Inventor
Kenzo Tanabe
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56073723A priority Critical patent/JPS57188150A/en
Publication of JPS57188150A publication Critical patent/JPS57188150A/en
Publication of JPS6315777B2 publication Critical patent/JPS6315777B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To transmit music signals with high quality equivalently, by transmitting information relating to the music signal with a binary code, to a transmission line in which the frequency band such as subchannel of multiplex broadcast is limited and the quality is not sufficient. CONSTITUTION:A sub-carrier wave outside of an audible band of a main audio channel is FSK-modulated with a synchronizing signal, a tone control signal, and binary code in each 4-bit representing a harmonic control signal and an envelope control signal and transmitted from a transmission side. At a reception side, a main audio channel and a sub-audio channel are demodulated, and a sub- audio channel signal is applied to a synchronizing detection circuit 3, a tone control signal detection gate 4, a harmonic wave control signal detection gate 5, and an envelope control signal detection gate 6 via a wave shape circuit 2, and a music signal can be reproduced by giving the outputs to a saw tooth variable frequency oscillator 10, a pass band variable filter 11, and a variable level controller 12 through code converters and storage devices 7-9.
JP56073723A 1981-05-15 1981-05-15 Multiplex signal transmission system Granted JPS57188150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56073723A JPS57188150A (en) 1981-05-15 1981-05-15 Multiplex signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56073723A JPS57188150A (en) 1981-05-15 1981-05-15 Multiplex signal transmission system

Publications (2)

Publication Number Publication Date
JPS57188150A true JPS57188150A (en) 1982-11-19
JPS6315777B2 JPS6315777B2 (en) 1988-04-06

Family

ID=13526426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56073723A Granted JPS57188150A (en) 1981-05-15 1981-05-15 Multiplex signal transmission system

Country Status (1)

Country Link
JP (1) JPS57188150A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6967276B2 (en) 1999-07-28 2005-11-22 Yamaha Corporation Portable telephony apparatus with music tone generator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3589122B2 (en) * 1999-11-01 2004-11-17 ヤマハ株式会社 Portable terminal device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6967276B2 (en) 1999-07-28 2005-11-22 Yamaha Corporation Portable telephony apparatus with music tone generator
US7119268B2 (en) 1999-07-28 2006-10-10 Yamaha Corporation Portable telephony apparatus with music tone generator
US7161081B2 (en) 1999-07-28 2007-01-09 Yamaha Corporation Portable telephony apparatus with music tone generator
US7514624B2 (en) 1999-07-28 2009-04-07 Yamaha Corporation Portable telephony apparatus with music tone generator

Also Published As

Publication number Publication date
JPS6315777B2 (en) 1988-04-06

Similar Documents

Publication Publication Date Title
ES8500530A1 (en) Analog and digital signal apparatus
ES476288A1 (en) Method of and system for transmitting two different messages on a carrier wave over a single transmission channel of predetermined bandwidth
NO894855L (en) PROCEDURE AND DEVICE FOR AA PROVIDING DIGITAL AUDIO SIGNALS IN THE FM CIRCUIT BAND.
ES8506960A1 (en) Television transmissions.
ES402984A1 (en) Multiplex out-of-band signaling system
EP0144245A3 (en) Transmitter/receiver system
JPS57150258A (en) Sub-signal transmission system
ES482039A1 (en) Multifrequency generator
ATE99476T1 (en) METHOD OF TRANSMITTING A DIGITIZED ROUND RADIO SIGNAL.
JPS5541094A (en) Method of and device for converting aural signal to fdm and pcm to fdm or vice versa
JPS57188150A (en) Multiplex signal transmission system
EP0510247A3 (en) Method and apparatus for transmitting digital audio signals from audio studios to the individual transmitting stations of a broadcasting network
EP0112697A3 (en) Priority coding system
FR2266985A1 (en) Radio communication method for service conversations - has message and distance monitoring signal transmission in digital form
JPS5310917A (en) Picture and sound transmission system
JPS5797277A (en) Television video audio simultaneous transmitter
ES8404593A1 (en) Television transmission method, transmitter and receiver with a plurality of sound channels.
BG102091A (en) Method for modulation and circuit for the transmission of data-containing signals
JPS5384515A (en) Multiplex communication system
JPS5355909A (en) Signal transmission system
FR2358059A1 (en) Multiplex SSB carrier wave communications system - combines five modulated carriers into single band for transmission
JPS57202198A (en) Portable stereo audio equipment
JPS52126102A (en) Transmission and reception system of fm stereo
JPS647879A (en) Signal transmitting method
JPS5579541A (en) Mobile radio equipment