JPS5236994A - Phase modulation circuit - Google Patents

Phase modulation circuit

Info

Publication number
JPS5236994A
JPS5236994A JP11259975A JP11259975A JPS5236994A JP S5236994 A JPS5236994 A JP S5236994A JP 11259975 A JP11259975 A JP 11259975A JP 11259975 A JP11259975 A JP 11259975A JP S5236994 A JPS5236994 A JP S5236994A
Authority
JP
Japan
Prior art keywords
phase modulation
modulation circuit
eliminating
duty ratio
digital system
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
JP11259975A
Other languages
Japanese (ja)
Inventor
Yutaka Yoneda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11259975A priority Critical patent/JPS5236994A/en
Publication of JPS5236994A publication Critical patent/JPS5236994A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

PURPOSE: To obtain a phase modulation circuit with which it is possible to obtain output signals which have an accurate duty ratio by processing signals with the digital system and by eliminating the edge business found in the analogue type phase modulation circuit.
COPYRIGHT: (C)1977,JPO&Japio
JP11259975A 1975-09-19 1975-09-19 Phase modulation circuit Pending JPS5236994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11259975A JPS5236994A (en) 1975-09-19 1975-09-19 Phase modulation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11259975A JPS5236994A (en) 1975-09-19 1975-09-19 Phase modulation circuit

Publications (1)

Publication Number Publication Date
JPS5236994A true JPS5236994A (en) 1977-03-22

Family

ID=14590759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11259975A Pending JPS5236994A (en) 1975-09-19 1975-09-19 Phase modulation circuit

Country Status (1)

Country Link
JP (1) JPS5236994A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5429631A (en) * 1977-08-10 1979-03-05 Hitachi Ltd Brightness adjustment circuit
JPS57122493A (en) * 1981-01-22 1982-07-30 Seiko Instr & Electronics Drive circuit for multiplex crystal liquid display device
JPS6279222U (en) * 1985-11-01 1987-05-21

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5429631A (en) * 1977-08-10 1979-03-05 Hitachi Ltd Brightness adjustment circuit
JPS57122493A (en) * 1981-01-22 1982-07-30 Seiko Instr & Electronics Drive circuit for multiplex crystal liquid display device
JPS6279222U (en) * 1985-11-01 1987-05-21

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