JPS554508A - Data processing system - Google Patents

Data processing system

Info

Publication number
JPS554508A
JPS554508A JP7639278A JP7639278A JPS554508A JP S554508 A JPS554508 A JP S554508A JP 7639278 A JP7639278 A JP 7639278A JP 7639278 A JP7639278 A JP 7639278A JP S554508 A JPS554508 A JP S554508A
Authority
JP
Japan
Prior art keywords
data
write
time
read
frequency
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
JP7639278A
Other languages
Japanese (ja)
Other versions
JPH0255752B2 (en
Inventor
Yoshio Numayasu
Takashi Ooyama
Takeo Miyashita
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.)
Tokyo Keiki Inc
Original Assignee
Tokyo Keiki 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 Tokyo Keiki Co Ltd filed Critical Tokyo Keiki Co Ltd
Priority to JP7639278A priority Critical patent/JPS554508A/en
Publication of JPS554508A publication Critical patent/JPS554508A/en
Publication of JPH0255752B2 publication Critical patent/JPH0255752B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/04—Display arrangements
    • G01S7/046—Display arrangements using an intermediate storage device, e.g. a recording/reproducing device

Abstract

PURPOSE:To obtain always stable display luminance, eliminate interference waves owing to proximity waves and ahieve higher speed of data processing and higher reliability by superposing the write and read time of data to a memory device. CONSTITUTION:Analog receiving signal is subjected to A/D conversion 10 and is made to sample data B through a latch FF 12. The data are then supplied to a memory device 14. At this time, the write clock of the same period as sample clock A is supplied to a counter 16 and the logical product of the address data being its output and the write gate signal c is applied as an address to the device 14. The reading from the device 14 is executed at the frequency differing from the write frequency and the output of the latch FF 26 is sent out as the data having been expanded to the time twice the holding time of the data B. By suitably selecting the frequency ratio of the write and read to and from the device 14, the write cycle and read cycle may be executed in the substantially superposed time zone.
JP7639278A 1978-06-26 1978-06-26 Data processing system Granted JPS554508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7639278A JPS554508A (en) 1978-06-26 1978-06-26 Data processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7639278A JPS554508A (en) 1978-06-26 1978-06-26 Data processing system

Related Child Applications (3)

Application Number Title Priority Date Filing Date
JP60093847A Division JPS6170480A (en) 1985-05-02 1985-05-02 Data processing system
JP60093846A Division JPS6170479A (en) 1985-05-02 1985-05-02 Data processing system
JP60093848A Division JPS6170481A (en) 1985-05-02 1985-05-02 Data processing system

Publications (2)

Publication Number Publication Date
JPS554508A true JPS554508A (en) 1980-01-14
JPH0255752B2 JPH0255752B2 (en) 1990-11-28

Family

ID=13604037

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7639278A Granted JPS554508A (en) 1978-06-26 1978-06-26 Data processing system

Country Status (1)

Country Link
JP (1) JPS554508A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62147380A (en) * 1985-12-20 1987-07-01 Tokyo Keiki Co Ltd Memory controller for digital radar system
JPH036581U (en) * 1990-05-09 1991-01-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62147380A (en) * 1985-12-20 1987-07-01 Tokyo Keiki Co Ltd Memory controller for digital radar system
JPH036581U (en) * 1990-05-09 1991-01-22

Also Published As

Publication number Publication date
JPH0255752B2 (en) 1990-11-28

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