IT1231568B - Image data transmitting system with amplitude modulation - Google Patents

Image data transmitting system with amplitude modulation

Info

Publication number
IT1231568B
IT1231568B IT8948078A IT4807889A IT1231568B IT 1231568 B IT1231568 B IT 1231568B IT 8948078 A IT8948078 A IT 8948078A IT 4807889 A IT4807889 A IT 4807889A IT 1231568 B IT1231568 B IT 1231568B
Authority
IT
Italy
Prior art keywords
signal
carrier
image data
frequency
circuit
Prior art date
Application number
IT8948078A
Other languages
Italian (it)
Other versions
IT8948078A0 (en
Inventor
Koji Ebisu
Koji Kanbayashi
Kenichi Shibuya
Original Assignee
Sony 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
Priority claimed from JP63147346A external-priority patent/JP2906412B2/en
Priority claimed from JP14734788A external-priority patent/JP2913642B2/en
Priority claimed from JP63289524A external-priority patent/JPH02134787A/en
Application filed by Sony Corp filed Critical Sony Corp
Publication of IT8948078A0 publication Critical patent/IT8948078A0/en
Application granted granted Critical
Publication of IT1231568B publication Critical patent/IT1231568B/en

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  • Closed-Circuit Television Systems (AREA)

Abstract

The transmission system includes an AM modulation circuit (10) and an AM demodulating circuit (20). The video signal (S1) is supplied to an input terminal (11) and is sampled at a sample-hold (S/H) circuit (12). In this case, a carrier signal (Ssam) having a frequency (2fc) which is twice a frequency (fc) of a carrier (Sc) is supplied to an input terminal (13). The input signal is sampled at the S/H circuit (12) at intervals (T/2), where (T) is the period of the carrier (Sc). Therefore, a signal (S2) consisting of image data (a, b, c, ......) corresponding to each pixel of the image to be displayed can be obtained. In a modulator (MOD) (14), the carrier signal (Sc) having a carrier frequency (fc) obtained by dividing the carrier (Ssam) by a 1/2 frequency divider (15) is AM-modulated by the signal (S2), so that a modulated signal (S3) can be obtained and transmitted to a transmission line through an output terminal (16).
IT8948078A 1988-06-15 1989-06-14 Image data transmitting system with amplitude modulation IT1231568B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP63147346A JP2906412B2 (en) 1988-06-15 1988-06-15 Transmission method of image data
JP14734788A JP2913642B2 (en) 1988-06-15 1988-06-15 Transmission method of image data
JP63289524A JPH02134787A (en) 1988-11-16 1988-11-16 Recorder

Publications (2)

Publication Number Publication Date
IT8948078A0 IT8948078A0 (en) 1989-06-14
IT1231568B true IT1231568B (en) 1991-12-17

Family

ID=27319342

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8948078A IT1231568B (en) 1988-06-15 1989-06-14 Image data transmitting system with amplitude modulation

Country Status (1)

Country Link
IT (1) IT1231568B (en)

Also Published As

Publication number Publication date
IT8948078A0 (en) 1989-06-14

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