JPS5588478A - Reduction method for picture signal dynamic range - Google Patents

Reduction method for picture signal dynamic range

Info

Publication number
JPS5588478A
JPS5588478A JP15936878A JP15936878A JPS5588478A JP S5588478 A JPS5588478 A JP S5588478A JP 15936878 A JP15936878 A JP 15936878A JP 15936878 A JP15936878 A JP 15936878A JP S5588478 A JPS5588478 A JP S5588478A
Authority
JP
Japan
Prior art keywords
circuit
signal
signals
synchronous
dynamic range
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
JP15936878A
Other languages
Japanese (ja)
Inventor
Ikuo Hayashi
Kazumitsu Maki
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP15936878A priority Critical patent/JPS5588478A/en
Publication of JPS5588478A publication Critical patent/JPS5588478A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To realize reduction of the dynamic range by transmitting the video signals with the polarity inverted with every horizontal synchronous signal.
CONSTITUTION: The DC level is set at DC level setting circuit 21 to the input signal sent from input terminal 1 at the transmission part to obtain the input signal for signal polarity inverting circuit 22. Switch 23 gives switching every synchronous signal to the signals sent from circuit 21 and the signals from circuit 22 via the synchronous signal given from horizontal synchronous circuit 24 in order to transmit these signals to transmission line 4. The signals sent from line 4 are applied to signal polarity inverting circuit 51 at reception part 5 as well as to switch 52. And switch 52 gives switching to the signals via the synchronous signal of synchronous circuit 53, thus obtaining the original signal waveform at terminal 7.
COPYRIGHT: (C)1980,JPO&Japio
JP15936878A 1978-12-26 1978-12-26 Reduction method for picture signal dynamic range Pending JPS5588478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15936878A JPS5588478A (en) 1978-12-26 1978-12-26 Reduction method for picture signal dynamic range

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15936878A JPS5588478A (en) 1978-12-26 1978-12-26 Reduction method for picture signal dynamic range

Publications (1)

Publication Number Publication Date
JPS5588478A true JPS5588478A (en) 1980-07-04

Family

ID=15692302

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15936878A Pending JPS5588478A (en) 1978-12-26 1978-12-26 Reduction method for picture signal dynamic range

Country Status (1)

Country Link
JP (1) JPS5588478A (en)

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