JPS6441348A - Psk modulation circuit - Google Patents

Psk modulation circuit

Info

Publication number
JPS6441348A
JPS6441348A JP19667287A JP19667287A JPS6441348A JP S6441348 A JPS6441348 A JP S6441348A JP 19667287 A JP19667287 A JP 19667287A JP 19667287 A JP19667287 A JP 19667287A JP S6441348 A JPS6441348 A JP S6441348A
Authority
JP
Japan
Prior art keywords
input terminal
conductive
nonconductive
diode
high 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.)
Pending
Application number
JP19667287A
Other languages
Japanese (ja)
Inventor
Shigemitsu Toriyama
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.)
Maspro Denkoh Corp
Original Assignee
Maspro Denkoh 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
Application filed by Maspro Denkoh Corp filed Critical Maspro Denkoh Corp
Priority to JP19667287A priority Critical patent/JPS6441348A/en
Publication of JPS6441348A publication Critical patent/JPS6441348A/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE:To directly connect the titled circuit to a computer by making both diodes conductive or nonconductive when no control signal is applied to a control input terminal. CONSTITUTION:In case of applying a control signal to a control input terminal 4, when a pulse signal fed to an input terminal 2 exists, for example, a diode 10 of other end 7b of a primary winding 7 of a high frequency transformer 6 is conductive and a diode 9 at the other end 7a is nonconductive. A carrier from a sinusoidal wave oscillator 5 applied to an intermediate tap 7C of the high frequency transformer 6 goes to a capacitor 18 and earth from a diode 10 at the other end 7b being conductive. Thus, a voltage (0 phase) in phase with that at the primary winding 7, for example, is induced in the secondary winding 8 of the high frequency transformer 6 and sent from an output terminal 3. When no control signal is applied to the control input terminal 4, both the diodes 9, 10 are either conductive or nonconductive independently of the presence of the pulse signal fed to the input terminal 2. Thus, the input terminal 2 is directly connected to the computer.
JP19667287A 1987-08-06 1987-08-06 Psk modulation circuit Pending JPS6441348A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19667287A JPS6441348A (en) 1987-08-06 1987-08-06 Psk modulation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19667287A JPS6441348A (en) 1987-08-06 1987-08-06 Psk modulation circuit

Publications (1)

Publication Number Publication Date
JPS6441348A true JPS6441348A (en) 1989-02-13

Family

ID=16361673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19667287A Pending JPS6441348A (en) 1987-08-06 1987-08-06 Psk modulation circuit

Country Status (1)

Country Link
JP (1) JPS6441348A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019156257A (en) * 2018-03-15 2019-09-19 東海旅客鉄道株式会社 Track circuit device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56137757A (en) * 1980-03-31 1981-10-27 Fujitsu Ltd Phase modulator
JPS5962256A (en) * 1982-09-30 1984-04-09 Toshiba Corp 0-pi phase modulator
JPS6113733A (en) * 1984-06-29 1986-01-22 Nec Home Electronics Ltd Carrier wave suppression method for psk modulation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56137757A (en) * 1980-03-31 1981-10-27 Fujitsu Ltd Phase modulator
JPS5962256A (en) * 1982-09-30 1984-04-09 Toshiba Corp 0-pi phase modulator
JPS6113733A (en) * 1984-06-29 1986-01-22 Nec Home Electronics Ltd Carrier wave suppression method for psk modulation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019156257A (en) * 2018-03-15 2019-09-19 東海旅客鉄道株式会社 Track circuit device

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