JPS5778282A - Television broadcasting device - Google Patents

Television broadcasting device

Info

Publication number
JPS5778282A
JPS5778282A JP15320780A JP15320780A JPS5778282A JP S5778282 A JPS5778282 A JP S5778282A JP 15320780 A JP15320780 A JP 15320780A JP 15320780 A JP15320780 A JP 15320780A JP S5778282 A JPS5778282 A JP S5778282A
Authority
JP
Japan
Prior art keywords
signal
video
pulse width
modulator
compensated
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
JP15320780A
Other languages
Japanese (ja)
Inventor
Hiroshi Ono
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15320780A priority Critical patent/JPS5778282A/en
Publication of JPS5778282A publication Critical patent/JPS5778282A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To perform high efficiency easily, without beat interference, by performing pulse width modulation with a signal in a low frequency region of a video signal, then applying an output of an amplitude modulator to a power amplifier. CONSTITUTION:When a video input is applied to a VSB-AN modulator 11 through a compensation circuit 15, a signal of television video modulating wave is applied to a power amplifier, and a video output is picked up with power amplification. In a switching regulator 14, the level dificiency of video signal near the carrier frequency is compensated with a filter 23, and the level deficiency is compensated with a pulse width modulator 26 by performing pulse width modulation for a signal having the frequency band from 0 to f1. Thus, the efficiency is increased.
JP15320780A 1980-10-31 1980-10-31 Television broadcasting device Pending JPS5778282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15320780A JPS5778282A (en) 1980-10-31 1980-10-31 Television broadcasting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15320780A JPS5778282A (en) 1980-10-31 1980-10-31 Television broadcasting device

Publications (1)

Publication Number Publication Date
JPS5778282A true JPS5778282A (en) 1982-05-15

Family

ID=15557380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15320780A Pending JPS5778282A (en) 1980-10-31 1980-10-31 Television broadcasting device

Country Status (1)

Country Link
JP (1) JPS5778282A (en)

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