JPS5588439A - Emphasizing system - Google Patents

Emphasizing system

Info

Publication number
JPS5588439A
JPS5588439A JP16243878A JP16243878A JPS5588439A JP S5588439 A JPS5588439 A JP S5588439A JP 16243878 A JP16243878 A JP 16243878A JP 16243878 A JP16243878 A JP 16243878A JP S5588439 A JPS5588439 A JP S5588439A
Authority
JP
Japan
Prior art keywords
attenuation amount
area near
10khz
carrier circuit
near 10khz
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
JP16243878A
Other languages
Japanese (ja)
Other versions
JPS6142902B2 (en
Inventor
Masashige Sone
Satoshi Arai
Toshio Takahashi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16243878A priority Critical patent/JPS5588439A/en
Publication of JPS5588439A publication Critical patent/JPS5588439A/en
Publication of JPS6142902B2 publication Critical patent/JPS6142902B2/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
    • 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
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/02—Arrangements for relaying broadcast information
    • H04H20/06—Arrangements for relaying broadcast information among broadcast stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

PURPOSE:To prevent occurrence of the noise at the carrier circuit by setting the frequency the attenuation amount of which becomes minimum close to 6kHz through the preemphasis and then increasing the attenuation amount again near 10kHz along with use of the deempahsis featuring the attenuation amount corresponding. CONSTITUTION:In the carrier circuit in which the pilot signal is inserted to the area near 10kHz equivalent to the high frequency region of the transmission band, the frequency the attenuation amount of which becomes minimum is shifted from the area near 10kHz to 6kHz through the preemphasis. And the attenuation amount is increased again at the area near 10kHz, and at the same time the deemphasis featuring the corresponding attenuation amount is used. Thus the pilot signal's amplification can be lowered to give no overload to the circuit. As a result, the combination is possible in use with the compandor, thus preventing occurrence of the noise at the carrier circuit.
JP16243878A 1978-12-26 1978-12-26 Emphasizing system Granted JPS5588439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16243878A JPS5588439A (en) 1978-12-26 1978-12-26 Emphasizing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16243878A JPS5588439A (en) 1978-12-26 1978-12-26 Emphasizing system

Publications (2)

Publication Number Publication Date
JPS5588439A true JPS5588439A (en) 1980-07-04
JPS6142902B2 JPS6142902B2 (en) 1986-09-24

Family

ID=15754607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16243878A Granted JPS5588439A (en) 1978-12-26 1978-12-26 Emphasizing system

Country Status (1)

Country Link
JP (1) JPS5588439A (en)

Also Published As

Publication number Publication date
JPS6142902B2 (en) 1986-09-24

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