JPS5541037A - Data sampling system of video display unit - Google Patents

Data sampling system of video display unit

Info

Publication number
JPS5541037A
JPS5541037A JP11421678A JP11421678A JPS5541037A JP S5541037 A JPS5541037 A JP S5541037A JP 11421678 A JP11421678 A JP 11421678A JP 11421678 A JP11421678 A JP 11421678A JP S5541037 A JPS5541037 A JP S5541037A
Authority
JP
Japan
Prior art keywords
sampling
video display
data
display unit
pulse
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
JP11421678A
Other languages
Japanese (ja)
Other versions
JPH0137911B2 (en
Inventor
Minoru Hosokawa
Katsuyuki Ikeda
Satoru Yazawa
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP11421678A priority Critical patent/JPS5541037A/en
Publication of JPS5541037A publication Critical patent/JPS5541037A/en
Publication of JPH0137911B2 publication Critical patent/JPH0137911B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: To establish the circuit simple and less in power consumption and error, by making equal the conduction time of the sampling circuit every data line for the matrix type video display to the time distance of video sampling point assigned to the video signal.
CONSTITUTION: The shift register 19 of the data sampling circuit of the matrix type video display unit is constituted with one stage of delay FF to each data line. In this case, the pulse width of the input timing data 23 is in agreement with the one period of the clock signal 22 determining the sampling points a,b,c... of the video signal 15 or a multiple so that the output is made to the terminals 27, 28, 29... The data sampling pulse 24 or 25 from the terminals 27, 28... keeps the ON time of the gate 30 so that they are all equal to the sampling period or a multiple. Thus, the leading and trailing of each pulse are contacted with the leading and trailing before and after to obtain sampling circuit less in error.
COPYRIGHT: (C)1980,JPO&Japio
JP11421678A 1978-09-18 1978-09-18 Data sampling system of video display unit Granted JPS5541037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11421678A JPS5541037A (en) 1978-09-18 1978-09-18 Data sampling system of video display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11421678A JPS5541037A (en) 1978-09-18 1978-09-18 Data sampling system of video display unit

Publications (2)

Publication Number Publication Date
JPS5541037A true JPS5541037A (en) 1980-03-22
JPH0137911B2 JPH0137911B2 (en) 1989-08-10

Family

ID=14632116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11421678A Granted JPS5541037A (en) 1978-09-18 1978-09-18 Data sampling system of video display unit

Country Status (1)

Country Link
JP (1) JPS5541037A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0219083A (en) * 1988-07-07 1990-01-23 Toshiba Corp Sample-and-hold circuit
EP0678850A1 (en) * 1994-04-22 1995-10-25 Sony Corporation Active matrix display device with additional dummy datalines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023931A (en) * 1973-07-03 1975-03-14
JPS5029242A (en) * 1973-07-20 1975-03-25
JPS50143428U (en) * 1974-05-13 1975-11-27

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023931A (en) * 1973-07-03 1975-03-14
JPS5029242A (en) * 1973-07-20 1975-03-25
JPS50143428U (en) * 1974-05-13 1975-11-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0219083A (en) * 1988-07-07 1990-01-23 Toshiba Corp Sample-and-hold circuit
EP0678850A1 (en) * 1994-04-22 1995-10-25 Sony Corporation Active matrix display device with additional dummy datalines

Also Published As

Publication number Publication date
JPH0137911B2 (en) 1989-08-10

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