[go: up one dir, main page]

JPS54158131A - Trend graph generator circuit - Google Patents

Trend graph generator circuit

Info

Publication number
JPS54158131A
JPS54158131A JP6670078A JP6670078A JPS54158131A JP S54158131 A JPS54158131 A JP S54158131A JP 6670078 A JP6670078 A JP 6670078A JP 6670078 A JP6670078 A JP 6670078A JP S54158131 A JPS54158131 A JP S54158131A
Authority
JP
Japan
Prior art keywords
memory
scan line
counter
dot
trend graph
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
JP6670078A
Other languages
Japanese (ja)
Inventor
Isao Masuda
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6670078A priority Critical patent/JPS54158131A/en
Publication of JPS54158131A publication Critical patent/JPS54158131A/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Computer Display Output (AREA)
  • Image Generation (AREA)

Abstract

PURPOSE:To increase the range of application by adding the trend graph generator circuit to the cathode-ray tube character display unit. CONSTITUTION:The scan line number is memorized in the form of the memory information into memory 3 featuring the same word number as the lateral dot number by defining the bit number capable of showing all scan line numbers as one word. Then the memory information read out by the output of dot counter 1 is compared with the output of scan line counter 2, and the coincidence signal is delivered from comparator 8 when the coincidence is obtained in the comparison. And the video signal is generated through video mixing circuit 9. Thus, one dot can be lit up at the cathode-ray tube. At the same time, memory 3 is read based on the output of dot counter 1, and the coincidence signals with counter 2 are delivered in sequence. As a result, the trend graph can be displayed by just memorizing the information varying in time series into memory 3 in the form of the scan line number.
JP6670078A 1978-06-05 1978-06-05 Trend graph generator circuit Pending JPS54158131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6670078A JPS54158131A (en) 1978-06-05 1978-06-05 Trend graph generator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6670078A JPS54158131A (en) 1978-06-05 1978-06-05 Trend graph generator circuit

Publications (1)

Publication Number Publication Date
JPS54158131A true JPS54158131A (en) 1979-12-13

Family

ID=13323467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6670078A Pending JPS54158131A (en) 1978-06-05 1978-06-05 Trend graph generator circuit

Country Status (1)

Country Link
JP (1) JPS54158131A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60181875A (en) * 1984-02-28 1985-09-17 Fujitsu Ltd Density histogram display circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60181875A (en) * 1984-02-28 1985-09-17 Fujitsu Ltd Density histogram display circuit

Similar Documents

Publication Publication Date Title
ES484612A1 (en) Video display terminal with partitioned screen.
EP0004797A3 (en) Video display control apparatus
JPS52101930A (en) Cathode-ray tube display unit
JPS5454531A (en) Crt display unti
JPS54158131A (en) Trend graph generator circuit
JPS5282125A (en) Chinese character input system
JPS5679978A (en) Temperature color display searching apparatus
JPS57106220A (en) Time ratio signal generating device
GB1513624A (en) Key sensing circuit in a digital calculator
FR2258064A1 (en) Graphic display system using point diagrams - uses series of bistable memory elements, detectors and computer
JPS5342869A (en) Signal observing apparatus
JPS55115140A (en) Display unit
JPS5679976A (en) Color cathode ray tube display device
JPS5547537A (en) Display device
JPS5210771A (en) Multi-function display electronic watch
JPS51129141A (en) Character enlargement display system
JPS53126220A (en) Character display unit
JPS51113653A (en) A wave form magnification display method of wave memory
JPS55135452A (en) Terminal unit
SU855723A1 (en) Device for displaying symbols on television screen
JPS5480623A (en) Character generating circuit
JPS54109330A (en) Display unit
JPS5513486A (en) Figure display method
JPS5427730A (en) Display unut on repetitive scanning system
JPS5351378A (en) Data display unit